vim: src/undo.c annotate

annotate src/undo.c @ 13138:0f906f414c69 v8.0.1443

patch 8.0.1443: compiler complains about uninitialized variable commit https://github.com/vim/vim/commit/059fd01021779ee369c1e55557275f6c349fda9e Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 31 14:25:53 2018 +0100 patch 8.0.1443: compiler complains about uninitialized variable Problem: Compiler complains about uninitialized variable. (Tony Mechelynck) Solution: Assign a value to the variable.

author	Christian Brabandt <cb@256bit.org>
date	Wed, 31 Jan 2018 14:30:05 +0100
parents	c4b5ad2b3596
children	ac42c4b11dbc

rev	line source
10042 4aead6a9b7a9 commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47 Christian Brabandt <cb@256bit.org> parents: 9674 diff changeset	1 /* vi:set ts=8 sts=4 sw=4 noet:
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	4 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	7 * See README.txt for an overview of the Vim source code.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	8 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	9
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	10 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	11 * undo.c: multi level undo facility
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	12 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	13 * The saved lines are stored in a list of lists (one for each buffer):
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	14 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	15 * b_u_oldhead------------------------------------------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	16 * \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	17 * V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	18 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	19 * b_u_newhead--->\| u_header \| \| u_header \| \| u_header \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	20 * \| uh_next------>\| uh_next------>\| uh_next---->NULL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	21 * NULL<--------uh_prev \|<---------uh_prev \|<---------uh_prev \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	22 * \| uh_entry \| \| uh_entry \| \| uh_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	23 * +--------\|-----+ +--------\|-----+ +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	24 * \| \| \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	25 * V V V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	26 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	27 * \| u_entry \| \| u_entry \| \| u_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	28 * \| ue_next \| \| ue_next \| \| ue_next \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	29 * +--------\|-----+ +--------\|-----+ +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	30 * \| \| \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	31 * V V V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	32 * +--------------+ NULL NULL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	33 * \| u_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	34 * \| ue_next \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	35 * +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	36 * \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	37 * V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	38 * etc.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	39 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	40 * Each u_entry list contains the information for one undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	41 * curbuf->b_u_curhead points to the header of the last undo (the next redo),
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	42 * or is NULL if nothing has been undone (end of the branch).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	43 *
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	45 * each point in the list a branch may appear for an alternate to redo. The
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	46 * uh_seq field is numbered sequentially to be able to find a newer or older
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	47 * branch.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	48 *
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	49 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	50 * b_u_oldhead --->\| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	51 * \| uh_alt_next ---->\| uh_alt_next ----> NULL
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	52 * NULL <----- uh_alt_prev \|<------ uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	53 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	54 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	55 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	56 * V V
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	57 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	58 * \| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	59 * \| uh_alt_next \| \| uh_alt_next \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	60 * b_u_newhead --->\| uh_alt_prev \| \| uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	61 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	62 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	63 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	64 * V V
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	65 * NULL +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	66 * \| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	67 * \| uh_alt_next ---->\| uh_alt_next \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	68 * \| uh_alt_prev \|<------ uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	69 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	70 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	71 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	72 * etc. etc.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	73 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	74 *
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	75 * All data is allocated and will all be freed when the buffer is unloaded.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	76 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	77
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	78 /* Uncomment the next line for including the u_check() function. This warns
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	79 * for errors in the debug information. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	80 /* #define U_DEBUG 1 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	83
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	84 /* Size of buffer used for encryption. */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	85 #define CRYPT_BUF_SIZE 8192
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	86
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	87 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	88
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	89 /* Structure passed around between functions.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	90 * Avoids passing cryptstate_T when encryption not available. */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	91 typedef struct {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	92 buf_T *bi_buf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	93 FILE *bi_fp;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	94 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	95 cryptstate_T *bi_state;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	96 char_u bi_buffer; / CRYPT_BUF_SIZE, NULL when not buffering */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	97 size_t bi_used; /* bytes written to/read from bi_buffer */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	98 size_t bi_avail; /* bytes available in bi_buffer */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	99 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	100 } bufinfo_T;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	101
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	102
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	103 static long get_undolevel(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	104 static void u_unch_branch(u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	105 static u_entry_T *u_get_headentry(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	106 static void u_getbot(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	107 static void u_doit(int count);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	108 static void u_undoredo(int undo);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	109 static void u_undo_end(int did_undo, int absolute);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	110 static void u_add_time(char_u *buf, size_t buflen, time_t tt);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	111 static void u_freeheader(buf_T buf, u_header_T uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	112 static void u_freebranch(buf_T buf, u_header_T uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	113 static void u_freeentries(buf_T buf, u_header_T uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	114 static void u_freeentry(u_entry_T *, long);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	115 #ifdef FEAT_PERSISTENT_UNDO
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	116 static void corruption_error(char mesg, char_u file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	117 static void u_free_uhp(u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	118 static int undo_write(bufinfo_T bi, char_u ptr, size_t len);
8128 985cd5917560 commit https://github.com/vim/vim/commit/1d6fbe654066845ff2a182ed258e6e9d3408fa90 Christian Brabandt <cb@256bit.org> parents: 7835 diff changeset	119 # ifdef FEAT_CRYPT
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	120 static int undo_flush(bufinfo_T *bi);
8128 985cd5917560 commit https://github.com/vim/vim/commit/1d6fbe654066845ff2a182ed258e6e9d3408fa90 Christian Brabandt <cb@256bit.org> parents: 7835 diff changeset	121 # endif
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	122 static int fwrite_crypt(bufinfo_T bi, char_u ptr, size_t len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	123 static int undo_write_bytes(bufinfo_T *bi, long_u nr, int len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	124 static void put_header_ptr(bufinfo_T bi, u_header_T uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	125 static int undo_read_4c(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	126 static int undo_read_2c(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	127 static int undo_read_byte(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	128 static time_t undo_read_time(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	129 static int undo_read(bufinfo_T bi, char_u buffer, size_t size);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	130 static char_u read_string_decrypt(bufinfo_T bi, int len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	131 static int serialize_header(bufinfo_T bi, char_u hash);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	132 static int serialize_uhp(bufinfo_T bi, u_header_T uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	133 static u_header_T unserialize_uhp(bufinfo_T bi, char_u *file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	134 static int serialize_uep(bufinfo_T bi, u_entry_T uep);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	135 static u_entry_T unserialize_uep(bufinfo_T bi, int error, char_u file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	136 static void serialize_pos(bufinfo_T *bi, pos_T pos);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	137 static void unserialize_pos(bufinfo_T bi, pos_T pos);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	138 static void serialize_visualinfo(bufinfo_T bi, visualinfo_T info);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	139 static void unserialize_visualinfo(bufinfo_T bi, visualinfo_T info);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	140 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	141
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	142 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 6771 diff changeset	143 static char_u *u_save_line(linenr_T);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	144
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	145 /* used in undo_end() to report number of added and deleted lines */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	146 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	147
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	148 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	149 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	150 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	151 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	152 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	153
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	154 static int lastmark = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	155
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	156 #if defined(U_DEBUG) \|\| defined(PROTO)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	157 /*
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	158 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	159 * looks wrong.
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	160 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	161 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	162 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	163 static int header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	164
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	165 static void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	166 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	167 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	168 u_header_T *exp_uh_alt_prev)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	169 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	170 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	171
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	172 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	173 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	174 ++header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	175 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	176 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	177 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	178 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	179 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	180 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	181 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	182 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	183 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	184 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	185
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	186 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	187 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	188 else
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	189 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	190 /* Check pointers back are correct. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	191 if (uhp->uh_next.ptr != exp_uh_next)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	192 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	193 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	194 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	195 exp_uh_next, uhp->uh_next.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	196 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	197 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	198 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	199 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	200 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	201 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	202 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	203
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	204 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	205 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	206 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	207 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	208 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	209 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	210 break;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	211 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	212 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	213
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	214 /* Check the next alt tree. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	215 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	216
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	217 /* Check the next header in this branch. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	218 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	219 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	220 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	221
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	222 static void
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	223 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	224 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	225 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	226 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	227 header_count = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	228
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	229 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	230
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	231 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	232 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	233 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	234 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	235 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	236 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	237 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	238 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	239 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	240 (long)header_count, (long)curbuf->b_u_numhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	241 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	242 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	243 #endif
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	244
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	245 /*
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	246 * Save the current line for both the "u" and "U" command.
4303 790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	247 * Careful: may trigger autocommands that reload the buffer.
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	248 * Returns OK or FAIL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	250 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	251 u_save_cursor(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	252 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	253 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	254 (linenr_T)(curwin->w_cursor.lnum + 1)));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	255 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	256
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	257 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	260 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 * Returns FAIL when lines could not be saved, OK otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	264 u_save(linenr_T top, linenr_T bot)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	266 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	267 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	268
4303 790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	269 if (top > curbuf->b_ml.ml_line_count
790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	270 \|\| top >= bot
790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	271 \|\| bot > curbuf->b_ml.ml_line_count + 1)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	277 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	281 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	282 * The line is replaced, so the new bottom line is lnum + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	283 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	284 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	287 u_savesub(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	290 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	292 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	296 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	297 * The line is inserted, so the new bottom line is lnum + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	298 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	299 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	300 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	301 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	302 u_inssub(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	303 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	304 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	305 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	306
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	307 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	308 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	309
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	310 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	311 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	312 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	313 * becomes empty.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	314 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	315 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	316 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	317 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	318 u_savedel(linenr_T lnum, long nlines)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	319 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	320 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	321 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	322
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	323 return (u_savecommon(lnum - 1, lnum + nlines,
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	324 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	325 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	326
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	327 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	329 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	330 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	331 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	332 undo_allowed(void)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	333 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	334 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	335 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	336 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	337 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	338 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	339 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	340
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	341 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	342 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	343 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	344 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	345 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	346 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	347 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	348 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	349
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	350 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	351 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	352 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	353 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	354 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	355 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	356 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	357
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	358 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	359 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	360
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	361 /*
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	362 * Get the undolevle value for the current buffer.
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	363 */
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	364 static long
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	365 get_undolevel(void)
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	366 {
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	367 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL)
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	368 return p_ul;
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	369 return curbuf->b_p_ul;
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	370 }
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	371
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	372 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	373 * Common code for various ways to save text before a change.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	374 * "top" is the line above the first changed line.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	375 * "bot" is the line below the last changed line.
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	376 * "newbot" is the new bottom line. Use zero when not known.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	377 * "reload" is TRUE when saving for a buffer reload.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	378 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	379 * Returns FAIL when lines could not be saved, OK otherwise.
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	380 */
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	381 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	382 u_savecommon(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	383 linenr_T top,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	384 linenr_T bot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	385 linenr_T newbot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	386 int reload)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	387 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	388 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	389 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	390 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	391 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	392 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	393 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	394 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	395
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	396 if (!reload)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	397 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	398 /* When making changes is not allowed return FAIL. It's a crude way
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	399 * to make all change commands fail. */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	400 if (!undo_allowed())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	401 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	402
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	403 #ifdef FEAT_NETBEANS_INTG
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	404 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	405 * Netbeans defines areas that cannot be modified. Bail out here when
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	406 * trying to change text in a guarded area.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	407 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	408 if (netbeans_active())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	409 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	410 if (netbeans_is_guarded(top, bot))
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	411 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	412 EMSG(_(e_guarded));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	413 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	414 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	415 if (curbuf->b_p_ro)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	416 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	417 EMSG(_(e_nbreadonly));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	418 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	419 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	420 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	421 #endif
11836 f080b225a2a4 patch 8.0.0798: no highlighting in a terminal window with a finished job Christian Brabandt <cb@256bit.org> parents: 11506 diff changeset	422 #ifdef FEAT_TERMINAL
f080b225a2a4 patch 8.0.0798: no highlighting in a terminal window with a finished job Christian Brabandt <cb@256bit.org> parents: 11506 diff changeset	423 /* A change in a terminal buffer removes the highlighting. */
f080b225a2a4 patch 8.0.0798: no highlighting in a terminal window with a finished job Christian Brabandt <cb@256bit.org> parents: 11506 diff changeset	424 term_change_in_curbuf();
f080b225a2a4 patch 8.0.0798: no highlighting in a terminal window with a finished job Christian Brabandt <cb@256bit.org> parents: 11506 diff changeset	425 #endif
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	426
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	427 #ifdef FEAT_AUTOCMD
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	428 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	429 * Saving text for undo means we are going to make a change. Give a
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	430 * warning for a read-only file before making the change, so that the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	431 * FileChangedRO event can replace the buffer with a read-write version
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	432 * (e.g., obtained from a source control system).
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	433 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	434 change_warning(0);
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	435 if (bot > curbuf->b_ml.ml_line_count + 1)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	436 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	437 /* This happens when the FileChangedRO autocommand changes the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	438 * file in a way it becomes shorter. */
5621 be61f315eafe updated for version 7.4.157 Bram Moolenaar <bram@vim.org> parents: 5448 diff changeset	439 EMSG(_("E881: Line count changed unexpectedly"));
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	440 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	441 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	442 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	443 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	444
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	445 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	446 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	447 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	448
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	449 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	450
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	451 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	452 * If curbuf->b_u_synced == TRUE make a new header.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	453 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	454 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	455 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	456 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	457 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	458 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	459 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	460
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	461 if (get_undolevel() >= 0)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	462 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	463 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	464 * Make a new header entry. Do this first so that we don't mess
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	465 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	466 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	467 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	468 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	469 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	470 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	471 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	472 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	473 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	474 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	475 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	476
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	477 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	478 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	479 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	480 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	481 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	482 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	483 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	484 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	485 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	486 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	487
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	488 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	489 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	490 */
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	491 while (curbuf->b_u_numhead > get_undolevel()
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	492 && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	493 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	494 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	495
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	496 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	497 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	498 u_freebranch(curbuf, uhfree, &old_curhead);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	499 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	500 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	501 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	502 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	503 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	504 /* Free the oldest alternate branch as a whole. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	505 while (uhfree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	506 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	507 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	508 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	509 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	510 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	511 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	512 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	513
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	514 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	516 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	517 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	518 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	519 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	520 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	521
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	522 uhp->uh_prev.ptr = NULL;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	523 uhp->uh_next.ptr = curbuf->b_u_newhead;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	524 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	525 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	526 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	527 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	528 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	529 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	530 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	531 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	532 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	533 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	534 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	535 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	536 if (curbuf->b_u_newhead != NULL)
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	537 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	538
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	539 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	540 curbuf->b_u_seq_cur = uhp->uh_seq;
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	541 uhp->uh_time = vim_time();
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	542 uhp->uh_save_nr = 0;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	543 curbuf->b_u_time_cur = uhp->uh_time + 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	544
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	545 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	556 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	558 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	559
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	560 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	562 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	563
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	567 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 {
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	571 if (get_undolevel() < 0) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	593 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	595 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	596 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	598 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	599 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	619 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	620 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	622 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	625 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	626
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	627 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	628 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	629 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	630 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	631 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	632 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	644 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	646 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	647
9536 b2aada04d84e commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4 Christian Brabandt <cb@256bit.org> parents: 9387 diff changeset	648 #if !defined(UNIX) && !defined(WIN32)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	649 /*
8212 05b88224cea1 commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce Christian Brabandt <cb@256bit.org> parents: 8128 diff changeset	650 * With Amiga we can't handle big undo's, because
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	654 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	655 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	656
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	657 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	658 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	659 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	660 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	661 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 goto nomem;
2215 cccb71c2c5c1 Fix uninit memory read in undo code. Fix uint32_t in proto file. Bram Moolenaar <bram@vim.org> parents: 2214 diff changeset	663 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	664 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	665 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	666 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	667
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	668 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	669 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	670 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	671 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	672 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	673 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	674 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	675 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	676 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	677 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	678 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	679 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	680 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	681 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	682 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	683
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	684 if (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	685 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	686 if ((uep->ue_array = (char_u **)U_ALLOC_LINE(
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	687 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	688 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	689 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	690 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	691 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	692 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	693 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	694 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	695 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	696 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	697 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	698 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	699 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	700 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	701 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	702 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	703 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	704 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	705 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	706 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	707 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	708 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	709 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	710 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	711 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	712 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	713
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	714 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	715 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	716 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	717 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	718
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	719 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	720 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	721 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	722 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	723 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	724 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	725 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	726 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	727 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	728 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	729 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	730
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	731 #if defined(FEAT_PERSISTENT_UNDO) \|\| defined(PROTO)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	732
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	733 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	734 # define UF_START_MAGIC_LEN 9
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	735 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	736 # define UF_HEADER_END_MAGIC 0xe7aa /* magic after last header */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	737 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	738 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	739 # define UF_VERSION 2 /* 2-byte undofile version number */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	740 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	741
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	742 /* extra fields for header */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	743 # define UF_LAST_SAVE_NR 1
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	744
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	745 /* extra fields for uhp */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	746 # define UHP_SAVE_NR 1
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	747
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	748 static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s");
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	749
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	750 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	751 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE].
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	752 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	753 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	754 u_compute_hash(char_u *hash)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	755 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	756 context_sha256_T ctx;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	757 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	758 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	759
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	760 sha256_start(&ctx);
3194 972bd3fca556 updated for version 7.3.367 Bram Moolenaar <bram@vim.org> parents: 2689 diff changeset	761 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	762 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	763 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	764 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	765 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	766 sha256_finish(&ctx, hash);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	767 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	768
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	769 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	770 * Return an allocated string of the full path of the target undofile.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	771 * When "reading" is TRUE find the file to read, go over all directories in
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	772 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	773 * When "reading" is FALSE use the first name where the directory exists.
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	774 * Returns NULL when there is no place to write or no file to read.
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	775 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	776 char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	777 u_get_undo_file_name(char_u *buf_ffname, int reading)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	778 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	779 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	780 char_u dir_name[IOSIZE + 1];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	781 char_u *munged_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	782 char_u *undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	783 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	784 char_u *p;
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	785 stat_T st;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	786 char_u *ffname = buf_ffname;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	787 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	788 char_u fname_buf[MAXPATHL];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	789 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	790
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	791 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	792 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	793
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	794 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	795 /* Expand symlink in the file name, so that we put the undo file with the
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	796 * actual file instead of with the symlink. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	797 if (resolve_symlink(ffname, fname_buf) == OK)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	798 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	799 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	800
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	801 /* Loop over 'undodir'. When reading find the first file that exists.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	802 * When not reading use the first directory that exists or ".". */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	803 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	804 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	805 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	806 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ",");
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	807 if (dir_len == 1 && dir_name[0] == '.')
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	808 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	809 /* Use same directory as the ffname,
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	810 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	811 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	812 if (undo_file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	813 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	814 p = gettail(undo_file_name);
5704 47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	815 #ifdef VMS
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	816 /* VMS can not handle more than one dot in the filenames
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	817 * use "dir/name" -> "dir/_un_name" - add _un_
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	818 * at the beginning to keep the extension */
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	819 mch_memmove(p + 4, p, STRLEN(p) + 1);
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	820 mch_memmove(p, "_un_", 4);
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	821
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	822 #else
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	823 /* Use same directory as the ffname,
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	824 * "dir/name" -> "dir/.name.un~" */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	825 mch_memmove(p + 1, p, STRLEN(p) + 1);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	826 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	827 STRCAT(p, ".un~");
5704 47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	828 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	829 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	830 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	831 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	832 dir_name[dir_len] = NUL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	833 if (mch_isdir(dir_name))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	834 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	835 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	836 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	837 munged_name = vim_strsave(ffname);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	838 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	839 return NULL;
11127 506f5d8b7d8b patch 8.0.0451: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 11121 diff changeset	840 for (p = munged_name; *p != NUL; MB_PTR_ADV(p))
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	841 if (vim_ispathsep(*p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	842 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	843 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	844 undo_file_name = concat_fnames(dir_name, munged_name, TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	845 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	846 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	847
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	848 /* When reading check if the file exists. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	849 if (undo_file_name != NULL && (!reading
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	850 \|\| mch_stat((char *)undo_file_name, &st) >= 0))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	851 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	852 vim_free(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	853 undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	854 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	855
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	856 vim_free(munged_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	857 return undo_file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	858 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	859
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	860 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	861 corruption_error(char mesg, char_u file_name)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	862 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	863 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	864 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	865
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	866 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	867 u_free_uhp(u_header_T *uhp)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	868 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	869 u_entry_T *nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	870 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	871
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	872 uep = uhp->uh_entry;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	873 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	874 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	875 nuep = uep->ue_next;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	876 u_freeentry(uep, uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	877 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	878 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	879 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	880 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	881
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	882 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	883 * Write a sequence of bytes to the undo file.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	884 * Buffers and encrypts as needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	885 * Returns OK or FAIL.
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	886 */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	887 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	888 undo_write(bufinfo_T bi, char_u ptr, size_t len)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	889 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	890 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	891 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	892 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	893 size_t len_todo = len;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	894 char_u *p = ptr;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	895
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	896 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	897 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	898 size_t n = CRYPT_BUF_SIZE - bi->bi_used;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	899
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	900 mch_memmove(bi->bi_buffer + bi->bi_used, p, n);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	901 len_todo -= n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	902 p += n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	903 bi->bi_used = CRYPT_BUF_SIZE;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	904 if (undo_flush(bi) == FAIL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	905 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	906 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	907 if (len_todo > 0)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	908 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	909 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	910 bi->bi_used += len_todo;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	911 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	912 return OK;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	913 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	914 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	915 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	916 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	917 return OK;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	918 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	919
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	920 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	921 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	922 undo_flush(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	923 {
12216 e971ef6c0dee patch 8.0.0988: warning from Covscan about using NULL pointer Christian Brabandt <cb@256bit.org> parents: 11957 diff changeset	924 if (bi->bi_buffer != NULL && bi->bi_state != NULL && bi->bi_used > 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	925 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	926 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	927 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	928 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	929 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	930 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	931 return OK;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	932 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	933 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	934
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	935 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	936 * Write "ptr[len]" and crypt the bytes when needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	937 * Returns OK or FAIL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	938 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	939 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	940 fwrite_crypt(bufinfo_T bi, char_u ptr, size_t len)
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	941 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	942 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	943 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	944 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	945 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	946
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	947 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	948 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	949 /* crypting every piece of text separately */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	950 if (len < 100)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	951 copy = small_buf; /* no malloc()/free() for short strings */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	952 else
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	953 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	954 copy = lalloc(len, FALSE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	955 if (copy == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	956 return 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	957 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	958 crypt_encode(bi->bi_state, ptr, len, copy);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	959 i = fwrite(copy, len, (size_t)1, bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	960 if (copy != small_buf)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	961 vim_free(copy);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	962 return i == 1 ? OK : FAIL;
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	963 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	964 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	965 return undo_write(bi, ptr, len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	966 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	967
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	968 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	969 * Write a number, MSB first, in "len" bytes.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	970 * Must match with undo_read_?c() functions.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	971 * Returns OK or FAIL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	972 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	973 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	974 undo_write_bytes(bufinfo_T *bi, long_u nr, int len)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	975 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	976 char_u buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	977 int i;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	978 int bufi = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	979
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	980 for (i = len - 1; i >= 0; --i)
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	981 buf[bufi++] = (char_u)(nr >> (i * 8));
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	982 return undo_write(bi, buf, (size_t)len);
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	983 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	984
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	985 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	986 * Write the pointer to an undo header. Instead of writing the pointer itself
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	987 * we use the sequence number of the header. This is converted back to
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	988 * pointers when reading. */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	989 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	990 put_header_ptr(bufinfo_T bi, u_header_T uhp)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	991 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	992 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	993 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	994
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	995 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	996 undo_read_4c(bufinfo_T *bi)
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	997 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	998 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	999 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1000 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1001 char_u buf[4];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1002 int n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1003
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1004 undo_read(bi, buf, (size_t)4);
6216 f1ba154c3a12 updated for version 7.4.443 Bram Moolenaar <bram@vim.org> parents: 6132 diff changeset	1005 n = ((unsigned)buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3];
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1006 return n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1007 }
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1008 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1009 return get4c(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1010 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1011
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1012 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1013 undo_read_2c(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1014 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1015 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1016 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1017 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1018 char_u buf[2];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1019 int n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1020
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1021 undo_read(bi, buf, (size_t)2);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1022 n = (buf[0] << 8) + buf[1];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1023 return n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1024 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1025 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1026 return get2c(bi->bi_fp);
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1027 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1028
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1029 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1030 undo_read_byte(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1031 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1032 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1033 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1034 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1035 char_u buf[1];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1036
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1037 undo_read(bi, buf, (size_t)1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1038 return buf[0];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1039 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1040 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1041 return getc(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1042 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1043
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1044 static time_t
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1045 undo_read_time(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1046 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1047 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1048 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1049 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1050 char_u buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1051 time_t n = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1052 int i;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1053
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1054 undo_read(bi, buf, (size_t)8);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1055 for (i = 0; i < 8; ++i)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1056 n = (n << 8) + buf[i];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1057 return n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1058 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1059 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1060 return get8ctime(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1061 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1062
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1063 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1064 * Read "buffer[size]" from the undo file.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1065 * Return OK or FAIL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1066 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1067 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1068 undo_read(bufinfo_T bi, char_u buffer, size_t size)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1069 {
11506 7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1070 int retval = OK;
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1071
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1072 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1073 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1074 {
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	1075 int size_todo = (int)size;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1076 char_u *p = buffer;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1077
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1078 while (size_todo > 0)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1079 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1080 size_t n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1081
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1082 if (bi->bi_used >= bi->bi_avail)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1083 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1084 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp);
10336 9d282593ba24 commit https://github.com/vim/vim/commit/55952d4dd490bb2f63bda5d7f6d8fb69f58c333c Christian Brabandt <cb@256bit.org> parents: 10042 diff changeset	1085 if (n == 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1086 {
11506 7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1087 retval = FAIL;
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1088 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1089 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1090 bi->bi_avail = n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1091 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1092 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1093 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1094 n = size_todo;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1095 if (n > bi->bi_avail - bi->bi_used)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1096 n = bi->bi_avail - bi->bi_used;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1097 mch_memmove(p, bi->bi_buffer + bi->bi_used, n);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1098 bi->bi_used += n;
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	1099 size_todo -= (int)n;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1100 p += n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1101 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1102 }
11506 7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1103 else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1104 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1105 if (fread(buffer, (size_t)size, 1, bi->bi_fp) != 1)
11506 7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1106 retval = FAIL;
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1107
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1108 if (retval == FAIL)
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1109 /* Error may be checked for only later. Fill with zeros,
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1110 * so that the reader won't use garbage. */
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1111 vim_memset(buffer, 0, size);
7140ff4857eb patch 8.0.0636: when reading the undo file fails may use uninitialized data Christian Brabandt <cb@256bit.org> parents: 11158 diff changeset	1112 return retval;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1113 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1114
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1115 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1116 * Read a string of length "len" from "bi->bi_fd".
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1117 * "len" can be zero to allocate an empty line.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1118 * Decrypt the bytes if needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1119 * Append a NUL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1120 * Returns a pointer to allocated memory or NULL for failure.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1121 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1122 static char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1123 read_string_decrypt(bufinfo_T *bi, int len)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1124 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1125 char_u *ptr = alloc((unsigned)len + 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1126
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1127 if (ptr != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1128 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1129 if (len > 0 && undo_read(bi, ptr, len) == FAIL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1130 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1131 vim_free(ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1132 return NULL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1133 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1134 ptr[len] = NUL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1135 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1136 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1137 crypt_decode_inplace(bi->bi_state, ptr, len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1138 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1139 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1140 return ptr;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1141 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1142
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1143 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1144 * Writes the (not encrypted) header and initializes encryption if needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1145 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1146 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1147 serialize_header(bufinfo_T bi, char_u hash)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1148 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1149 int len;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1150 buf_T *buf = bi->bi_buf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1151 FILE *fp = bi->bi_fp;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1152 char_u time_buf[8];
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1153
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1154 /* Start writing, first the magic marker and undo info version. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1155 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1156 return FAIL;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1157
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1158 /* If the buffer is encrypted then all text bytes following will be
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1159 * encrypted. Numbers and other info is not crypted. */
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1160 #ifdef FEAT_CRYPT
2410 8f6106dd3d12 Fix: editing a not encrypted file after a crypted file messed up reading the Bram Moolenaar <bram@vim.org> parents: 2394 diff changeset	1161 if (*buf->b_p_key != NUL)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1162 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1163 char_u *header;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1164 int header_len;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1165
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1166 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1167 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf),
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1168 buf->b_p_key, &header, &header_len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1169 if (bi->bi_state == NULL)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1170 return FAIL;
2245 4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more. Bram Moolenaar <bram@vim.org> parents: 2242 diff changeset	1171 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1172 vim_free(header);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1173 if (len != 1)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1174 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1175 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1176 bi->bi_state = NULL;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1177 return FAIL;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1178 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1179
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1180 if (crypt_whole_undofile(crypt_get_method_nr(buf)))
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1181 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1182 bi->bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1183 if (bi->bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1184 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1185 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1186 bi->bi_state = NULL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1187 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1188 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1189 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1190 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1191 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1192 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1193 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1194 undo_write_bytes(bi, (long_u)UF_VERSION, 2);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1195
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1196
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1197 /* Write a hash of the buffer text, so that we can verify it is still the
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1198 * same when reading the buffer text. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1199 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1200 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1201
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1202 /* buffer-specific data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1203 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1204 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1205 undo_write_bytes(bi, (long_u)len, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1206 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr, (size_t)len) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1207 return FAIL;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1208 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1209 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1210
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1211 /* Undo structures header data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1212 put_header_ptr(bi, buf->b_u_oldhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1213 put_header_ptr(bi, buf->b_u_newhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1214 put_header_ptr(bi, buf->b_u_curhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1215
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1216 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1217 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1218 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1219 time_to_bytes(buf->b_u_time_cur, time_buf);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1220 undo_write(bi, time_buf, 8);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1221
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1222 /* Optional fields. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1223 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1224 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1225 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1226
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1227 undo_write_bytes(bi, 0, 1); /* end marker */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1228
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1229 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1230 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1231
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1232 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1233 serialize_uhp(bufinfo_T bi, u_header_T uhp)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1234 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1235 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1236 u_entry_T *uep;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1237 char_u time_buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1238
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1239 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1240 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1241
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1242 put_header_ptr(bi, uhp->uh_next.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1243 put_header_ptr(bi, uhp->uh_prev.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1244 put_header_ptr(bi, uhp->uh_alt_next.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1245 put_header_ptr(bi, uhp->uh_alt_prev.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1246 undo_write_bytes(bi, uhp->uh_seq, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1247 serialize_pos(bi, uhp->uh_cursor);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1248 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1249 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1250 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1251 undo_write_bytes(bi, (long_u)0, 4);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1252 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1253 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1254 /* Assume NMARKS will stay the same. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1255 for (i = 0; i < NMARKS; ++i)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1256 serialize_pos(bi, uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1257 serialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1258 time_to_bytes(uhp->uh_time, time_buf);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1259 undo_write(bi, time_buf, 8);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1260
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1261 /* Optional fields. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1262 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1263 undo_write_bytes(bi, UHP_SAVE_NR, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1264 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1265
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1266 undo_write_bytes(bi, 0, 1); /* end marker */
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1267
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1268 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1269 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1270 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1271 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1272 if (serialize_uep(bi, uep) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1273 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1274 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1275 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1276 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1277 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1278
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1279 static u_header_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1280 unserialize_uhp(bufinfo_T bi, char_u file_name)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1281 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1282 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1283 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1284 u_entry_T uep, last_uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1285 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1286 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1287
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1288 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1289 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1290 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1291 vim_memset(uhp, 0, sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1292 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1293 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1294 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1295 uhp->uh_next.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1296 uhp->uh_prev.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1297 uhp->uh_alt_next.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1298 uhp->uh_alt_prev.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1299 uhp->uh_seq = undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1300 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1301 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1302 corruption_error("uh_seq", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1303 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1304 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1305 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1306 unserialize_pos(bi, &uhp->uh_cursor);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1307 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1308 uhp->uh_cursor_vcol = undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1309 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1310 (void)undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1311 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1312 uhp->uh_flags = undo_read_2c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1313 for (i = 0; i < NMARKS; ++i)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1314 unserialize_pos(bi, &uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1315 unserialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1316 uhp->uh_time = undo_read_time(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1317
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1318 /* Optional fields. */
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1319 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1320 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1321 int len = undo_read_byte(bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1322 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1323
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1324 if (len == 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1325 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1326 what = undo_read_byte(bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1327 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1328 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1329 case UHP_SAVE_NR:
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1330 uhp->uh_save_nr = undo_read_4c(bi);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1331 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1332 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1333 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1334 while (--len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1335 (void)undo_read_byte(bi);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1336 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1337 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1338
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1339 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1340 last_uep = NULL;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1341 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1342 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1343 error = FALSE;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1344 uep = unserialize_uep(bi, &error, file_name);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1345 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1346 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1347 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1348 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1349 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1350 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1351 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1352 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1353 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1354 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1355 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1356 if (c != UF_ENTRY_END_MAGIC)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1357 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1358 corruption_error("entry end", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1359 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1360 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1361 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1362
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1363 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1364 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1365
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1366 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1367 * Serialize "uep".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1368 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1369 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1370 serialize_uep(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1371 bufinfo_T *bi,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1372 u_entry_T *uep)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1373 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1374 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1375 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1376
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1377 undo_write_bytes(bi, (long_u)uep->ue_top, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1378 undo_write_bytes(bi, (long_u)uep->ue_bot, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1379 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1380 undo_write_bytes(bi, (long_u)uep->ue_size, 4);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1381 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1382 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1383 len = STRLEN(uep->ue_array[i]);
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1384 if (undo_write_bytes(bi, (long_u)len, 4) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1385 return FAIL;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1386 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1387 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1388 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1389 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1390 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1391
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1392 static u_entry_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1393 unserialize_uep(bufinfo_T bi, int error, char_u *file_name)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1394 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1395 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1396 u_entry_T *uep;
10978 f3d64d9e5d76 patch 8.0.0378: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10976 diff changeset	1397 char_u **array = NULL;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1398 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1399 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1400
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1401 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1402 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1403 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1404 vim_memset(uep, 0, sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1405 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1406 uep->ue_magic = UE_MAGIC;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1407 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1408 uep->ue_top = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1409 uep->ue_bot = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1410 uep->ue_lcount = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1411 uep->ue_size = undo_read_4c(bi);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1412 if (uep->ue_size > 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1413 {
10978 f3d64d9e5d76 patch 8.0.0378: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10976 diff changeset	1414 if (uep->ue_size < LONG_MAX / (int)sizeof(char_u *))
f3d64d9e5d76 patch 8.0.0378: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10976 diff changeset	1415 array = (char_u *)U_ALLOC_LINE(sizeof(char_u ) * uep->ue_size);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1416 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1417 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1418 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1419 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1420 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1421 vim_memset(array, 0, sizeof(char_u ) uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1422 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1423 uep->ue_array = array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1424
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1425 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1426 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1427 line_len = undo_read_4c(bi);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1428 if (line_len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1429 line = read_string_decrypt(bi, line_len);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1430 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1431 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1432 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1433 corruption_error("line length", file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1434 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1435 if (line == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1436 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1437 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1438 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1439 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1440 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1441 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1442 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1443 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1444
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1445 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1446 * Serialize "pos".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1447 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1448 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1449 serialize_pos(bufinfo_T *bi, pos_T pos)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1450 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1451 undo_write_bytes(bi, (long_u)pos.lnum, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1452 undo_write_bytes(bi, (long_u)pos.col, 4);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1453 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1454 undo_write_bytes(bi, (long_u)pos.coladd, 4);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1455 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1456 undo_write_bytes(bi, (long_u)0, 4);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1457 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1458 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1459
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1460 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1461 * Unserialize the pos_T at the current position.
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1462 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1463 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1464 unserialize_pos(bufinfo_T bi, pos_T pos)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1465 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1466 pos->lnum = undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1467 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1468 pos->lnum = 0;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1469 pos->col = undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1470 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1471 pos->col = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1472 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1473 pos->coladd = undo_read_4c(bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1474 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1475 pos->coladd = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1476 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1477 (void)undo_read_4c(bi);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1478 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1479 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1480
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1481 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1482 * Serialize "info".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1483 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1484 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1485 serialize_visualinfo(bufinfo_T bi, visualinfo_T info)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1486 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1487 serialize_pos(bi, info->vi_start);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1488 serialize_pos(bi, info->vi_end);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1489 undo_write_bytes(bi, (long_u)info->vi_mode, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1490 undo_write_bytes(bi, (long_u)info->vi_curswant, 4);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1491 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1492
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1493 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1494 * Unserialize the visualinfo_T at the current position.
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1495 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1496 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1497 unserialize_visualinfo(bufinfo_T bi, visualinfo_T info)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1498 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1499 unserialize_pos(bi, &info->vi_start);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1500 unserialize_pos(bi, &info->vi_end);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1501 info->vi_mode = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1502 info->vi_curswant = undo_read_4c(bi);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1503 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1504
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1505 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1506 * Write the undo tree in an undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1507 * When "name" is not NULL, use it as the name of the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1508 * Otherwise use buf->b_ffname to generate the undo file name.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1509 * "buf" must never be null, buf->b_ffname is used to obtain the original file
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1510 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1511 * "forceit" is TRUE for ":wundo!", FALSE otherwise.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1512 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1513 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1514 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1515 u_write_undo(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1516 char_u *name,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1517 int forceit,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1518 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1519 char_u *hash)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1520 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1521 u_header_T *uhp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1522 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1523 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1524 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1525 int headers_written = 0;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1526 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1527 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1528 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1529 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1530 int write_ok = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1531 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1532 int st_old_valid = FALSE;
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1533 stat_T st_old;
f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1534 stat_T st_new;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1535 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1536 bufinfo_T bi;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1537
6128 3aa37ad2c4ed updated for version 7.4.402 Bram Moolenaar <bram@vim.org> parents: 6122 diff changeset	1538 vim_memset(&bi, 0, sizeof(bi));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1539
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1540 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1541 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1542 file_name = u_get_undo_file_name(buf->b_ffname, FALSE);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1543 if (file_name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1544 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1545 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1546 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1547 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1548 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1549 _("Cannot write undo file in any directory in 'undodir'"));
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1550 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1551 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1552 return;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1553 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1554 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1555 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1556 file_name = name;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1557
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1558 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1559 * Decide about the permission to use for the undo file. If the buffer
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1560 * has a name use the permission of the original file. Otherwise only
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1561 * allow the user to access the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1562 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1563 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1564 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1565 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1566 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1567 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1568 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1569 perm = st_old.st_mode;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1570 st_old_valid = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1571 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1572 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1573 perm = mch_getperm(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1574 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1575 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1576 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1577 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1578
6771 63b2bc619d5a patch 7.4.707 Bram Moolenaar <bram@vim.org> parents: 6616 diff changeset	1579 /* strip any s-bit and executable bit */
63b2bc619d5a patch 7.4.707 Bram Moolenaar <bram@vim.org> parents: 6616 diff changeset	1580 perm = perm & 0666;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1581
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1582 /* If the undo file already exists, verify that it actually is an undo
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1583 * file, and delete it. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1584 if (mch_getperm(file_name) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1585 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1586 if (name == NULL \|\| !forceit)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1587 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1588 /* Check we can read it and it's an undo file. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1589 fd = mch_open((char *)file_name, O_RDONLY\|O_EXTRA, 0);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1590 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1591 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1592 if (name != NULL \|\| p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1593 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1594 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1595 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1596 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1597 _("Will not overwrite with undo file, cannot read: %s"),
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1598 file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1599 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1600 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1601 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1602 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1603 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1604 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1605 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1606 char_u mbuf[UF_START_MAGIC_LEN];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1607 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1608
2664 033e7b49356c updated for version 7.3.083 Bram Moolenaar <bram@vim.org> parents: 2627 diff changeset	1609 len = read_eintr(fd, mbuf, UF_START_MAGIC_LEN);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1610 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1611 if (len < UF_START_MAGIC_LEN
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1612 \|\| memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1613 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1614 if (name != NULL \|\| p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1615 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1616 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1617 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1618 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1619 _("Will not overwrite, this is not an undo file: %s"),
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1620 file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1621 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1622 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1623 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1624 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1625 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1626 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1627 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1628 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1629 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1630
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1631 /* If there is no undo information at all, quit here after deleting any
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1632 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1633 if (buf->b_u_numhead == 0 && buf->b_u_line_ptr == NULL)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1634 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1635 if (p_verbose > 0)
2262 771f21e35ec5 Minor typo and docs update. Bram Moolenaar <bram@vim.org> parents: 2251 diff changeset	1636 verb_msg((char_u *)_("Skipping undo file write, nothing to undo"));
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1637 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1638 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1639
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1640 fd = mch_open((char *)file_name,
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1641 O_CREAT\|O_EXTRA\|O_WRONLY\|O_EXCL\|O_NOFOLLOW, perm);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1642 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1643 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1644 EMSG2(_(e_not_open), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1645 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1646 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1647 (void)mch_setperm(file_name, perm);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1648 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1649 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1650 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1651 smsg((char_u *)_("Writing undo file: %s"), file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1652 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1653 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1654
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1655 #ifdef U_DEBUG
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1656 /* Check there is no problem in undo info before writing. */
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1657 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1658 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1659
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1660 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1661 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1662 * Try to set the group of the undo file same as the original file. If
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1663 * this fails, set the protection bits for the group same as the
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1664 * protection bits for others.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1665 */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1666 if (st_old_valid
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1667 && mch_stat((char *)file_name, &st_new) >= 0
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1668 && st_new.st_gid != st_old.st_gid
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1669 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1670 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1671 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1672 )
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1673 mch_setperm(file_name, (perm & 0707) \| ((perm & 07) << 3));
5788 410ef4f1a3d2 updated for version 7.4.238 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	1674 # if defined(HAVE_SELINUX) \|\| defined(HAVE_SMACK)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1675 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1676 mch_copy_sec(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1677 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1678 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1679
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1680 fp = fdopen(fd, "w");
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1681 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1682 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1683 EMSG2(_(e_not_open), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1684 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1685 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1686 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1687 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1688
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1689 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1690 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1691
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1692 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1693 * Write the header. Initializes encryption, if enabled.
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1694 */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1695 bi.bi_buf = buf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1696 bi.bi_fp = fp;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1697 if (serialize_header(&bi, hash) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1698 goto write_error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1699
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1700 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1701 * Iteratively serialize UHPs and their UEPs from the top down.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1702 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1703 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1704 uhp = buf->b_u_oldhead;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1705 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1706 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1707 /* Serialize current UHP if we haven't seen it */
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1708 if (uhp->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1709 {
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1710 uhp->uh_walk = mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1711 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1712 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1713 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1714 if (serialize_uhp(&bi, uhp) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1715 goto write_error;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1716 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1717
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1718 /* Now walk through the tree - algorithm from undo_time(). */
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1719 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1720 uhp = uhp->uh_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1721 else if (uhp->uh_alt_next.ptr != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1722 && uhp->uh_alt_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1723 uhp = uhp->uh_alt_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1724 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1725 && uhp->uh_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1726 uhp = uhp->uh_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1727 else if (uhp->uh_alt_prev.ptr != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1728 uhp = uhp->uh_alt_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1729 else
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1730 uhp = uhp->uh_next.ptr;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1731 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1732
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1733 if (undo_write_bytes(&bi, (long_u)UF_HEADER_END_MAGIC, 2) == OK)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1734 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1735 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1736 if (headers_written != buf->b_u_numhead)
4827 60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1737 {
60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1738 EMSGN("Written %ld headers, ...", headers_written);
60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1739 EMSGN("... but numhead is %ld", buf->b_u_numhead);
60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1740 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1741 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1742
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1743 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1744 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1745 write_ok = FALSE;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1746 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1747
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1748 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1749 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1750 if (!write_ok)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1751 EMSG2(_("E829: write error in undo file: %s"), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1752
12716 351cf7c67bbe patch 8.0.1236: Mac features are confusing Christian Brabandt <cb@256bit.org> parents: 12293 diff changeset	1753 #if defined(WIN3264)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1754 /* Copy file attributes; for systems where this can only be done after
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1755 * closing the file. */
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1756 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1757 (void)mch_copy_file_attribute(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1758 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1759 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1760 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1761 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1762 vim_acl_T acl;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1763
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1764 /* For systems that support ACL: get the ACL from the original file. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1765 acl = mch_get_acl(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1766 mch_set_acl(file_name, acl);
3545 74d51b51f3e6 updated for version 7.3.533 Bram Moolenaar <bram@vim.org> parents: 3194 diff changeset	1767 mch_free_acl(acl);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1768 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1769 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1770
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1771 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1772 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1773 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1774 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1775 vim_free(bi.bi_buffer);
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1776 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1777 if (file_name != name)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1778 vim_free(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1779 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1780
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1781 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1782 * Load the undo tree from an undo file.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1783 * If "name" is not NULL use it as the undo file name. This also means being
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1784 * a bit more verbose.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1785 * Otherwise use curbuf->b_ffname to generate the undo file name.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1786 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1787 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1788 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1789 u_read_undo(char_u name, char_u hash, char_u *orig_name)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1790 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1791 char_u *file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1792 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1793 long version, str_len;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1794 char_u *line_ptr = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1795 linenr_T line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1796 colnr_T line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1797 linenr_T line_count;
10976 f97a72ad8ffa patch 8.0.0377: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10631 diff changeset	1798 long num_head = 0;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1799 long old_header_seq, new_header_seq, cur_header_seq;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1800 long seq_last, seq_cur;
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	1801 long last_save_nr = 0;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1802 short old_idx = -1, new_idx = -1, cur_idx = -1;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1803 long num_read_uhps = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1804 time_t seq_time;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1805 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1806 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1807 u_header_T *uhp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1808 u_header_T **uhp_table = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1809 char_u read_hash[UNDO_HASH_SIZE];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1810 char_u magic_buf[UF_START_MAGIC_LEN];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1811 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1812 int *uhp_table_used;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1813 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1814 #ifdef UNIX
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1815 stat_T st_orig;
f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1816 stat_T st_undo;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1817 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1818 bufinfo_T bi;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1819
6128 3aa37ad2c4ed updated for version 7.4.402 Bram Moolenaar <bram@vim.org> parents: 6122 diff changeset	1820 vim_memset(&bi, 0, sizeof(bi));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1821 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1822 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1823 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1824 if (file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1825 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1826
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1827 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1828 /* For safety we only read an undo file if the owner is equal to the
5343 00d61a47df66 updated for version 7.4.024 Bram Moolenaar <bram@vim.org> parents: 4827 diff changeset	1829 * owner of the text file or equal to the current user. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1830 if (mch_stat((char *)orig_name, &st_orig) >= 0
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1831 && mch_stat((char *)file_name, &st_undo) >= 0
5343 00d61a47df66 updated for version 7.4.024 Bram Moolenaar <bram@vim.org> parents: 4827 diff changeset	1832 && st_orig.st_uid != st_undo.st_uid
00d61a47df66 updated for version 7.4.024 Bram Moolenaar <bram@vim.org> parents: 4827 diff changeset	1833 && st_undo.st_uid != getuid())
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1834 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1835 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1836 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1837 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1838 smsg((char_u *)_("Not reading undo file, owner differs: %s"),
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1839 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1840 verbose_leave();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1841 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1842 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1843 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1844 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1845 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1846 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1847 file_name = name;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1848
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1849 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1850 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1851 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1852 smsg((char_u *)_("Reading undo file: %s"), file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1853 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1854 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1855
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1856 fp = mch_fopen((char *)file_name, "r");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1857 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1858 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1859 if (name != NULL \|\| p_verbose > 0)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1860 EMSG2(_("E822: Cannot open undo file for reading: %s"), file_name);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1861 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1862 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1863 bi.bi_buf = curbuf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1864 bi.bi_fp = fp;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1865
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1866 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1867 * Read the undo file header.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1868 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1869 if (fread(magic_buf, UF_START_MAGIC_LEN, 1, fp) != 1
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1870 \|\| memcmp(magic_buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1871 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1872 EMSG2(_("E823: Not an undo file: %s"), file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1873 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1874 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1875 version = get2c(fp);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1876 if (version == UF_VERSION_CRYPT)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1877 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1878 #ifdef FEAT_CRYPT
2251 646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1879 if (*curbuf->b_p_key == NUL)
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1880 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1881 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"),
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1882 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1883 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1884 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1885 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1886 if (bi.bi_state == NULL)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1887 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1888 EMSG2(_("E826: Undo file decryption failed: %s"), file_name);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1889 goto error;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1890 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1891 if (crypt_whole_undofile(bi.bi_state->method_nr))
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1892 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1893 bi.bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1894 if (bi.bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1895 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1896 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1897 bi.bi_state = NULL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1898 goto error;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1899 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1900 bi.bi_avail = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1901 bi.bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1902 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1903 #else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1904 EMSG2(_("E827: Undo file is encrypted: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1905 goto error;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1906 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1907 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1908 else if (version != UF_VERSION)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1909 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1910 EMSG2(_("E824: Incompatible undo file: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1911 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1912 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1913
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1914 if (undo_read(&bi, read_hash, (size_t)UNDO_HASH_SIZE) == FAIL)
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1915 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1916 corruption_error("hash", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1917 goto error;
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1918 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1919 line_count = (linenr_T)undo_read_4c(&bi);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1920 if (memcmp(hash, read_hash, UNDO_HASH_SIZE) != 0
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1921 \|\| line_count != curbuf->b_ml.ml_line_count)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1922 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1923 if (p_verbose > 0 \|\| name != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1924 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1925 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1926 verbose_enter();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1927 give_warning((char_u *)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1928 _("File contents changed, cannot use undo info"), TRUE);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1929 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1930 verbose_leave();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1931 }
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1932 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1933 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1934
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1935 /* Read undo data for "U" command. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1936 str_len = undo_read_4c(&bi);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1937 if (str_len < 0)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1938 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1939 if (str_len > 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1940 line_ptr = read_string_decrypt(&bi, str_len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1941 line_lnum = (linenr_T)undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1942 line_colnr = (colnr_T)undo_read_4c(&bi);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1943 if (line_lnum < 0 \|\| line_colnr < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1944 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1945 corruption_error("line lnum/col", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1946 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1947 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1948
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1949 /* Begin general undo data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1950 old_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1951 new_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1952 cur_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1953 num_head = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1954 seq_last = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1955 seq_cur = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1956 seq_time = undo_read_time(&bi);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1957
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1958 /* Optional header fields. */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1959 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1960 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1961 int len = undo_read_byte(&bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1962 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1963
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1964 if (len == 0 \|\| len == EOF)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1965 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1966 what = undo_read_byte(&bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1967 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1968 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1969 case UF_LAST_SAVE_NR:
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1970 last_save_nr = undo_read_4c(&bi);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1971 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1972 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1973 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1974 while (--len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1975 (void)undo_read_byte(&bi);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1976 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1977 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1978
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1979 /* uhp_table will store the freshly created undo headers we allocate
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1980 * until we insert them into curbuf. The table remains sorted by the
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1981 * sequence numbers of the headers.
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1982 * When there are no headers uhp_table is NULL. */
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1983 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1984 {
10976 f97a72ad8ffa patch 8.0.0377: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10631 diff changeset	1985 if (num_head < LONG_MAX / (long)sizeof(u_header_T *))
f97a72ad8ffa patch 8.0.0377: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10631 diff changeset	1986 uhp_table = (u_header_T **)U_ALLOC_LINE(
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1987 num_head * sizeof(u_header_T *));
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1988 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1989 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1990 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1991
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1992 while ((c = undo_read_2c(&bi)) == UF_HEADER_MAGIC)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1993 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1994 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1995 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1996 corruption_error("num_head too small", file_name);
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1997 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1998 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1999
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2000 uhp = unserialize_uhp(&bi, file_name);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	2001 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	2002 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2003 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2004 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2005
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2006 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2007 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2008 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2009 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2010 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2011 if (c != UF_HEADER_END_MAGIC)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2012 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2013 corruption_error("end marker", file_name);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2014 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2015 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2016
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2017 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2018 uhp_table_used = (int *)alloc_clear(
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2019 (unsigned)(sizeof(int) * num_head + 1));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2020 # define SET_FLAG(j) ++uhp_table_used[j]
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2021 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2022 # define SET_FLAG(j)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2023 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2024
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	2025 /* We have put all of the headers into a table. Now we iterate through the
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2026 * table and swizzle each sequence number we have stored in uh_*_seq into
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2027 * a pointer corresponding to the header with that sequence number. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2028 for (i = 0; i < num_head; i++)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2029 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2030 uhp = uhp_table[i];
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2031 if (uhp == NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2032 continue;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2033 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2034 if (uhp_table[j] != NULL && i != j
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2035 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2036 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2037 corruption_error("duplicate uh_seq", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2038 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2039 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2040 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2041 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2042 && uhp_table[j]->uh_seq == uhp->uh_next.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2043 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2044 uhp->uh_next.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2045 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2046 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2047 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2048 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2049 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2050 && uhp_table[j]->uh_seq == uhp->uh_prev.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2051 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2052 uhp->uh_prev.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2053 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2054 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2055 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2056 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2057 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2058 && uhp_table[j]->uh_seq == uhp->uh_alt_next.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2059 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2060 uhp->uh_alt_next.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2061 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2062 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2063 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2064 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2065 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2066 && uhp_table[j]->uh_seq == uhp->uh_alt_prev.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2067 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2068 uhp->uh_alt_prev.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2069 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2070 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2071 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2072 if (old_header_seq > 0 && old_idx < 0 && uhp->uh_seq == old_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2073 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2074 old_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2075 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2076 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2077 if (new_header_seq > 0 && new_idx < 0 && uhp->uh_seq == new_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2078 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2079 new_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2080 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2081 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2082 if (cur_header_seq > 0 && cur_idx < 0 && uhp->uh_seq == cur_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2083 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2084 cur_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2085 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2086 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2087 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2088
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2089 /* Now that we have read the undo info successfully, free the current undo
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2090 * info and use the info from the file. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2091 u_blockfree(curbuf);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2092 curbuf->b_u_oldhead = old_idx < 0 ? NULL : uhp_table[old_idx];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2093 curbuf->b_u_newhead = new_idx < 0 ? NULL : uhp_table[new_idx];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2094 curbuf->b_u_curhead = cur_idx < 0 ? NULL : uhp_table[cur_idx];
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2095 curbuf->b_u_line_ptr = line_ptr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2096 curbuf->b_u_line_lnum = line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2097 curbuf->b_u_line_colnr = line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2098 curbuf->b_u_numhead = num_head;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2099 curbuf->b_u_seq_last = seq_last;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2100 curbuf->b_u_seq_cur = seq_cur;
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2101 curbuf->b_u_time_cur = seq_time;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2102 curbuf->b_u_save_nr_last = last_save_nr;
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2103 curbuf->b_u_save_nr_cur = last_save_nr;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2104
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2105 curbuf->b_u_synced = TRUE;
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2106 vim_free(uhp_table);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2107
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2108 #ifdef U_DEBUG
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2109 for (i = 0; i < num_head; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2110 if (uhp_table_used[i] == 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2111 EMSGN("uhp_table entry %ld not used, leaking memory", i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2112 vim_free(uhp_table_used);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2113 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2114 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2115
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2116 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2117 smsg((char_u *)_("Finished reading undo file %s"), file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2118 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2119
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2120 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2121 vim_free(line_ptr);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2122 if (uhp_table != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2123 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2124 for (i = 0; i < num_read_uhps; i++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2125 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	2126 u_free_uhp(uhp_table[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2127 vim_free(uhp_table);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2128 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2129
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2130 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	2131 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2132 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2133 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2134 vim_free(bi.bi_buffer);
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	2135 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2136 if (fp != NULL)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2137 fclose(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2138 if (file_name != name)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2139 vim_free(file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2140 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2141 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2142
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2143 #endif /* FEAT_PERSISTENT_UNDO */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2144
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2145
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2146 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2147 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2148 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2149 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2150 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2151 u_undo(int count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2152 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2153 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2154 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2155 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2156 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2157 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2158 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2159 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2160 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2161 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2162 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2163
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2164 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2165 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2166 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2167 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2168 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2169 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2170
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2171 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2172 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2173 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2174 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2175 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2176 u_redo(int count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2177 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2178 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2179 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2180 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2181 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2182
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2183 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2184 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2185 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2186 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2187 u_doit(int startcount)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2188 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2189 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2190
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	2191 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2192 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2193
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2194 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2195 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2196 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2197 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2198 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2199 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2200 /* Do the change warning now, so that it triggers FileChangedRO when
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2201 * needed. This may cause the file to be reloaded, that must happen
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2202 * before we do anything, because it may change curbuf->b_u_curhead
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2203 * and more. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2204 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2205
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2206 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2207 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2208 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2209 curbuf->b_u_curhead = curbuf->b_u_newhead;
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	2210 else if (get_undolevel() > 0) /* multi level undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2211 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2212 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2213 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2214 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2215 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2216 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2217 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2218 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2219 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2220 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2221 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2222 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2223 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2224 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2225 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2226
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2227 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2228 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2229 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2230 {
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	2231 if (curbuf->b_u_curhead == NULL \|\| get_undolevel() <= 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2232 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2233 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2234 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2235 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2236 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2237 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2238 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2239 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2240 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2241
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2242 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2243
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2244 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2245 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2246 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2247 curbuf->b_u_newhead = curbuf->b_u_curhead;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2248 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2249 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2250 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2251 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2252 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2253
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2254 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2255 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2256 * When "step" is negative go back in time, otherwise goes forward in time.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2257 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2258 * seconds.
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2259 * When "file" is TRUE use "step" as a number of file writes.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2260 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2261 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2262 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2263 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2264 undo_time(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2265 long step,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2266 int sec,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2267 int file,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2268 int absolute)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2269 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2270 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2271 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2272 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2273 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2274 long val;
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2275 u_header_T *uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2276 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2277 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2278 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2279 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2280 int dosec = sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2281 int dofile = file;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2282 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2283 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2284
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2285 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2286 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2287 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2288
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2289 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2290 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2291 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2292 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2293
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2294 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2295 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2296 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2297 {
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2298 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2299 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2300 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2301 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2302 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2303 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2304 target = (long)(curbuf->b_u_time_cur) + step;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2305 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2306 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2307 if (step < 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2308 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2309 /* Going back to a previous write. If there were changes after
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2310 * the last write, count that as moving one file-write, so
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2311 * that ":earlier 1f" undoes all changes since the last save. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2312 uhp = curbuf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2313 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2314 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2315 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2316 uhp = curbuf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2317 if (uhp != NULL && uhp->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2318 /* "uh_save_nr" was set in the last block, that means
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2319 * there were no changes since the last write */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2320 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2321 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2322 /* count the changes since the last write as one step */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2323 target = curbuf->b_u_save_nr_cur + step + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2324 if (target <= 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2325 /* Go to before first write: before the oldest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2326 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2327 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2328 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2329 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2330 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2331 /* Moving forward to a newer write. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2332 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2333 if (target > curbuf->b_u_save_nr_last)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2334 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2335 /* Go to after last write: after the latest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2336 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2337 target = curbuf->b_u_seq_last + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2338 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2339 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2340 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2341 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2342 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2343 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2344 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2345 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2346 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2347 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2348 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2349 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2350 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2351 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2352 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2353 closest = (long)(vim_time() + 1);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2354 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2355 closest = curbuf->b_u_save_nr_last + 2;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2356 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2357 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2358 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2359 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2360 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2361 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2362 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2363 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2364
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2365 /* When "target" is 0; Back to origin. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2366 if (target == 0)
13138 0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2367 {
0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2368 mark = lastmark; /* avoid that GCC complains */
0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2369 goto target_zero;
0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2370 }
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2371
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2372 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2373 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2374 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2375 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2376 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2377 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2378 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2379 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2380 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2381 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2382 /* Find the path from the current state to where we want to go. The
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2383 * desired state can be anywhere in the undo tree, need to go all over
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2384 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2385 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2386 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2387 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2388
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2389 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2390 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2391 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2392 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2393
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2394 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2395 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2396 uhp->uh_walk = mark;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2397 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2398 val = (long)(uhp->uh_time);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2399 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2400 val = uhp->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2401 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2402 val = uhp->uh_seq;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2403
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2404 if (round == 1 && !(dofile && val == 0))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2405 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2406 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2407 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2408 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2409 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2410 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2411 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2412 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2413 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2414 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2415 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2416 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2417 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2418 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2419 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2420 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2421 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2422 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2423 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2424 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2425 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2426 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2427 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2428 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2429
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2430 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2431 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2432 if (target == val && !dosec)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2433 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2434 target = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2435 break;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2436 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2437
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2438 /* go down in the tree if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2439 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2440 && uhp->uh_prev.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2441 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2442
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2443 /* go to alternate branch if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2444 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2445 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2446 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2447 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2448
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2449 /* go up in the tree if we haven't been there and we are at the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2450 * start of alternate branches */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2451 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2452 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2453 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2454 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2455 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2456 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2457 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2458 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2459 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2460
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2461 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2462 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2463 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2464 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2465 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2466 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2467 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2468 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2469 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2470 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2471
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2472 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2473 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2474
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2475 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2476 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2477 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2478 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2479 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2480
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2481 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2482 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2483 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2484 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2485 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2486 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2487 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2488 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2489
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2490 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2491 dosec = FALSE;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2492 dofile = FALSE;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2493 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2494 above = TRUE; /* stop above the header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2495 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2496
13138 0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2497 target_zero:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2498 /* If we found it: Follow the path to go to where we want to be. */
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2499 if (uhp != NULL \|\| target == 0)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2500 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2501 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2502 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2503 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2504 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2505 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2506 /* Do the change warning now, for the same reason as above. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2507 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2508
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2509 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2510 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2511 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2512 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2513 uhp = uhp->uh_next.ptr;
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2514 if (uhp == NULL \|\| (target > 0 && uhp->uh_walk != mark)
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2515 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2516 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2517 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2518 u_undoredo(TRUE);
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2519 if (target > 0)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2520 uhp->uh_walk = nomark; /* don't go back down here */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2521 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2522
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2523 /* When back to origin, redo is not needed. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2524 if (target > 0)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2525 {
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2526 /*
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2527 * And now go down the tree (redo), branching off where needed.
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2528 */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2529 while (!got_int)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2530 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2531 /* Do the change warning now, for the same reason as above. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2532 change_warning(0);
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2533
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2534 uhp = curbuf->b_u_curhead;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2535 if (uhp == NULL)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2536 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2537
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2538 /* Go back to the first branch with a mark. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2539 while (uhp->uh_alt_prev.ptr != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2540 && uhp->uh_alt_prev.ptr->uh_walk == mark)
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2541 uhp = uhp->uh_alt_prev.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2542
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2543 /* Find the last branch with a mark, that's the one. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2544 last = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2545 while (last->uh_alt_next.ptr != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2546 && last->uh_alt_next.ptr->uh_walk == mark)
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2547 last = last->uh_alt_next.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2548 if (last != uhp)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2549 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2550 /* Make the used branch the first entry in the list of
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2551 * alternatives to make "u" and CTRL-R take this branch. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2552 while (uhp->uh_alt_prev.ptr != NULL)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2553 uhp = uhp->uh_alt_prev.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2554 if (last->uh_alt_next.ptr != NULL)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2555 last->uh_alt_next.ptr->uh_alt_prev.ptr =
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2556 last->uh_alt_prev.ptr;
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2557 last->uh_alt_prev.ptr->uh_alt_next.ptr =
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2558 last->uh_alt_next.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2559 last->uh_alt_prev.ptr = NULL;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2560 last->uh_alt_next.ptr = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2561 uhp->uh_alt_prev.ptr = last;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2562
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2563 if (curbuf->b_u_oldhead == uhp)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2564 curbuf->b_u_oldhead = last;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2565 uhp = last;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2566 if (uhp->uh_next.ptr != NULL)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2567 uhp->uh_next.ptr->uh_prev.ptr = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2568 }
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2569 curbuf->b_u_curhead = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2570
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2571 if (uhp->uh_walk != mark)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2572 break; /* must have reached the target */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2573
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2574 /* Stop when going backwards in time and didn't find the exact
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2575 * header we were looking for. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2576 if (uhp->uh_seq == target && above)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2577 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2578 curbuf->b_u_seq_cur = target - 1;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2579 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2580 }
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2581
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2582 u_undoredo(FALSE);
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2583
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2584 /* Advance "curhead" to below the header we last used. If it
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2585 * becomes NULL then we need to set "newhead" to this leaf. */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2586 if (uhp->uh_prev.ptr == NULL)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2587 curbuf->b_u_newhead = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2588 curbuf->b_u_curhead = uhp->uh_prev.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2589 did_undo = FALSE;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2590
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2591 if (uhp->uh_seq == target) /* found it! */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2592 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2593
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2594 uhp = uhp->uh_prev.ptr;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2595 if (uhp == NULL \|\| uhp->uh_walk != mark)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2596 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2597 /* Need to redo more but can't find it... */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2598 internal_error("undo_time()");
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2599 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2600 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2601 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2602 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2603 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2604 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2605 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2606
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2607 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2608 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2609 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2610 * The lines in the file are replaced by the lines in the entry list at
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2611 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2612 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2613 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2614 * When "undo" is TRUE we go up in the tree, when FALSE we go down.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2615 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2616 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2617 u_undoredo(int undo)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2618 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2619 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2620 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2621 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2622 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2623 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2624 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2625 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2626 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2627 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2628 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2629 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2630 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2631 visualinfo_T visualinfo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2632 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2633 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2634
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2635 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2636 /* Don't want autocommands using the undo structures here, they are
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2637 * invalid till the end. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2638 block_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2639 #endif
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2640
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2641 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2642 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2643 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2644 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2645 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2646 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2647 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2648
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2649 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2650 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2651 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2652 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2653 visualinfo = curbuf->b_visual;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2654 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2655 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2656 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2657 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2658
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2659 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2660 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2661 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2662 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2663 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2664 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2665 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2666 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2667 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2668 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2669 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2670 #endif
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	2671 IEMSG(_("E438: u_undo: line numbers wrong"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2672 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2673 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2674 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2675
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2676 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2677 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2678
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2679 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2680 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2681 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2682 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2683 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2684 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2685 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2686 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2687 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2688 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2689 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2690 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2691 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2692 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2693 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2694 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2695 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2696 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2697 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2698 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2699 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2700 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2701 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2702 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2703 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2704 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2705 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2706 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2707 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2708 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2709 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2710
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2711 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2712
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2713 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2714 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2715 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2716 if ((newarray = (char_u **)U_ALLOC_LINE(
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2717 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2718 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2719 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2720 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2721 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2722 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2723 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2724 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2725 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2726 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2727 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2728 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2729 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2730 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2731 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2732 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2733 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2734 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2735 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2736 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2737 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2738 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2739 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2740 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2741 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2742 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2743 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2744 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2745 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2746 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2747
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2748 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2749 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2750 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2751 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2752 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2753 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2754 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2755 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2756 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2757 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2758 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2759 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2760 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2761 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2762 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2763 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2764 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2765
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2766 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2767 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2768 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2769 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2770 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2771 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2772 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2773 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2774 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2775 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2776
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2777 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2778
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2779 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2780 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2781 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2782 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2783 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2784 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2785 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2786
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2787 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2788 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2789 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2790 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2791 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2792
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2793 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2794 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2795 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2796 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2797 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2798 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2799 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2800
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2801 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2802 curhead->uh_flags = new_flags;
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10978 diff changeset	2803 if ((old_flags & UH_EMPTYBUF) && BUFEMPTY())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2804 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2805 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2806 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2807 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2808 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2809 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2810 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2811 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2812 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2813
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2814 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2815 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2816 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2817 for (i = 0; i < NMARKS; ++i)
6616 290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2818 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2819 if (curhead->uh_namedm[i].lnum != 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2820 curbuf->b_namedm[i] = curhead->uh_namedm[i];
6616 290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2821 if (namedm[i].lnum != 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2822 curhead->uh_namedm[i] = namedm[i];
6616 290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2823 else
290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2824 curhead->uh_namedm[i].lnum = 0;
290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2825 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2826 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2827 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2828 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2829 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2830 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2831
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2832 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2833 * If the cursor is only off by one line, put it at the same position as
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2834 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2835 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2836 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2837 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2838 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2839 --curwin->w_cursor.lnum;
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2840 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2841 {
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2842 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2843 {
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2844 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2845 #ifdef FEAT_VIRTUALEDIT
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2846 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2847 coladvance((colnr_T)curhead->uh_cursor_vcol);
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2848 else
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2849 curwin->w_cursor.coladd = 0;
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2850 #endif
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2851 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2852 else
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2853 beginline(BL_SOL \| BL_FIX);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2854 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2855 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2856 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2857 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2858 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2859 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2860 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2861 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2862 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2863 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2864 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2865 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2866
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2867 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2868 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2869
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2870 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2871 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2872 if (undo)
12827 ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2873 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2874 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2875 * work we compute this as being just above the just undone change. */
12827 ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2876 if (curhead->uh_next.ptr != NULL)
ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2877 curbuf->b_u_seq_cur = curhead->uh_next.ptr->uh_seq;
ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2878 else
ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2879 curbuf->b_u_seq_cur = 0;
ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2880 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2881
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2882 /* Remember where we are for ":earlier 1f" and ":later 1f". */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2883 if (curhead->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2884 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2885 if (undo)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2886 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2887 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2888 curbuf->b_u_save_nr_cur = curhead->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2889 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2890
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2891 /* The timestamp can be the same for multiple changes, just use the one of
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2892 * the undone/redone change. */
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2893 curbuf->b_u_time_cur = curhead->uh_time;
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2894
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2895 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2896 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2897 #endif
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2898 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2899 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2900 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2901 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2902
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2903 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2904 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2905 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2906 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2907 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2908 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2909 u_undo_end(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2910 int did_undo, /* just did an undo */
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2911 int absolute) /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2912 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2913 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2914 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2915 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2916
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2917 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2918 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2919 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2920 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2921
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2922 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2923 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2924 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2925
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2926 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2927 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2928
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2929 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2930 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2931 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2932 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2933 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2934 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2935 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2936 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2937 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2938 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2939 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2940 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2941 if (u_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2942 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2943 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2944 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2945 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2946
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2947 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2948 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2949 /* For ":undo N" we prefer a "after #N" message. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2950 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2951 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2952 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2953 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2954 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2955 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2956 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2957 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2958 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2959 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2960 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2961 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2962
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2963 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2964 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2965 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2966 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2967
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2968 #ifdef FEAT_CONCEAL
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2969 {
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2970 win_T *wp;
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2971
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2972 FOR_ALL_WINDOWS(wp)
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2973 {
2378 85b7dc8da5eb Add the 'concealcursor' option to decide when the cursor line is to be Bram Moolenaar <bram@vim.org> parents: 2367 diff changeset	2974 if (wp->w_buffer == curbuf && wp->w_p_cole > 0)
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2975 redraw_win_later(wp, NOT_VALID);
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2976 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2977 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2978 #endif
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2979
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2980 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2981 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2982 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2983 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2984 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2985 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2986 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2987
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2988 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2989 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2990 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2991 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2992 u_sync(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2993 int force) /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2994 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2995 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2996 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2997 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2998 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
12293 1ff5e5dfa9b0 patch 8.0.1026: GTK on-the-spot input has problems Christian Brabandt <cb@256bit.org> parents: 12216 diff changeset	2999 if (p_imst == IM_ON_THE_SPOT && im_is_preediting())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3000 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3001 #endif
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	3002 if (get_undolevel() < 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3003 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3004 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3005 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3006 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3007 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3008 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3009 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3010
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3011 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3012 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3013 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3014 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3015 ex_undolist(exarg_T *eap UNUSED)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3016 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3017 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3018 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3019 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3020 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3021 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3022 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3023
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3024 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3025 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3026 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3027 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3028 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3029 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3030 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3031 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3032
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3033 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3034 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3035 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3036 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	3037 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3038 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3039 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3040 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3041 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3042 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3043 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3044 uhp->uh_time);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3045 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3046 {
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3047 while (STRLEN(IObuff) < 33)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3048 STRCAT(IObuff, " ");
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3049 vim_snprintf_add((char *)IObuff, IOSIZE,
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3050 " %3ld", uhp->uh_save_nr);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3051 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3052 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3053 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3054
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3055 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3056
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3057 /* go down in the tree if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3058 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3059 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3060 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3061 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3062 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3063 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3064
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3065 /* go to alternate branch if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3066 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3067 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3068 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3069 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3070
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3071 /* go up in the tree if we haven't been there and we are at the
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3072 * start of alternate branches */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3073 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3074 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3075 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3076 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3077 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3078 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3079 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3080
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3081 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3082 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3083 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3084 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3085 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3086 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3087 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3088 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3089 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3090 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3091 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3092 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3093 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3094
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3095 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3096 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3097 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3098 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3099 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3100
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3101 msg_start();
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3102 msg_puts_attr((char_u *)_("number changes when saved"),
11158 501f46f7644c patch 8.0.0466: still macros that should be all-caps Christian Brabandt <cb@256bit.org> parents: 11127 diff changeset	3103 HL_ATTR(HLF_T));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3104 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3105 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3106 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3107 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3108 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3109 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3110 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3111 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3112
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3113 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3114 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3115 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3116
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3117 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3118 * Put the timestamp of an undo header in "buf[buflen]" in a nice format.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3119 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3120 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3121 u_add_time(char_u *buf, size_t buflen, time_t tt)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3122 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3123 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3124 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3125
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	3126 if (vim_time() - tt >= 100)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3127 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3128 curtime = localtime(&tt);
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	3129 if (vim_time() - tt < (60L * 60L * 12L))
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3130 /* within 12 hours */
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3131 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3132 else
3751 b7eea2409507 updated for version 7.3.634 Bram Moolenaar <bram@vim.org> parents: 3545 diff changeset	3133 /* longer ago */
2689 26fb122355d4 updated for version 7.3.107 Bram Moolenaar <bram@vim.org> parents: 2685 diff changeset	3134 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3135 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3136 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3137 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	3138 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	3139 (long)(vim_time() - tt));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3140 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3141
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3142 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3143 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3144 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3145 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3146 ex_undojoin(exarg_T *eap UNUSED)
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3147 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3148 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3149 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3150 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3151 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3152 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3153 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3154 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3155 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3156 return; /* already unsynced */
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	3157 if (get_undolevel() < 0)
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3158 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3159 else
10631 cbf17371627c patch 8.0.0205: wrong behavior after :undojoin Christian Brabandt <cb@256bit.org> parents: 10518 diff changeset	3160 /* Append next change to the last entry */
cbf17371627c patch 8.0.0205: wrong behavior after :undojoin Christian Brabandt <cb@256bit.org> parents: 10518 diff changeset	3161 curbuf->b_u_synced = FALSE;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3162 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3163
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3164 /*
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	3165 * Called after writing or reloading the file and setting b_changed to FALSE.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3166 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3167 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3168 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3169 u_unchanged(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3170 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3171 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3172 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3173 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3174
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3175 /*
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3176 * After reloading a buffer which was saved for 'undoreload': Find the first
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3177 * line that was changed and set the cursor there.
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3178 */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3179 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3180 u_find_first_changed(void)
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3181 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3182 u_header_T *uhp = curbuf->b_u_newhead;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3183 u_entry_T *uep;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3184 linenr_T lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3185
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3186 if (curbuf->b_u_curhead != NULL \|\| uhp == NULL)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3187 return; /* undid something in an autocmd? */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3188
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3189 /* Check that the last undo block was for the whole file. */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3190 uep = uhp->uh_entry;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3191 if (uep->ue_top != 0 \|\| uep->ue_bot != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3192 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3193
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3194 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3195 && lnum <= uep->ue_size; ++lnum)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3196 if (STRCMP(ml_get_buf(curbuf, lnum, FALSE),
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3197 uep->ue_array[lnum - 1]) != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3198 {
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10978 diff changeset	3199 CLEAR_POS(&(uhp->uh_cursor));
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3200 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3201 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3202 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3203 if (curbuf->b_ml.ml_line_count != uep->ue_size)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3204 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3205 /* lines added or deleted at the end, put the cursor there */
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10978 diff changeset	3206 CLEAR_POS(&(uhp->uh_cursor));
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3207 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3208 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3209 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3210
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3211 /*
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3212 * Increase the write count, store it in the last undo header, what would be
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3213 * used for "u".
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3214 */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3215 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3216 u_update_save_nr(buf_T *buf)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3217 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3218 u_header_T *uhp;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3219
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3220 ++buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3221 buf->b_u_save_nr_cur = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3222 uhp = buf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3223 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3224 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3225 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3226 uhp = buf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3227 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3228 uhp->uh_save_nr = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3229 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3230
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3231 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3232 u_unch_branch(u_header_T *uhp)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3233 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3234 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3235
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3236 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3237 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3238 uh->uh_flags \|= UH_CHANGED;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3239 if (uh->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3240 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3241 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3242 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3243
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3244 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3245 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3246 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3247 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3248 static u_entry_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3249 u_get_headentry(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3250 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3251 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3252 {
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	3253 IEMSG(_("E439: undo list corrupt"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3254 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3255 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3256 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3257 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3258
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3259 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3260 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3261 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3262 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3263 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3264 u_getbot(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3265 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3266 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3267 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3268
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3269 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3270 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3271 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3272
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3273 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3274 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3275 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3276 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3277 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3278 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3279 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3280 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3281 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3282 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3283 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3284 {
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	3285 IEMSG(_("E440: undo line missing"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3286 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3287 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3288 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3289 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3290 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3291
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3292 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3293 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3294
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3295 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3296 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3297
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3298 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3299 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3300 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3301 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3302 u_freeheader(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3303 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3304 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3305 u_header_T *uhpp) / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3306 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3307 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3308
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3309 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3310 * because we can never go there. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3311 if (uhp->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3312 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3313
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3314 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3315 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3316
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3317 /* Update the links in the list to remove the header. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3318 if (uhp->uh_next.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3319 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3320 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3321 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3322
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3323 if (uhp->uh_prev.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3324 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3325 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3326 for (uhap = uhp->uh_prev.ptr; uhap != NULL;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3327 uhap = uhap->uh_alt_next.ptr)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3328 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3329
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3330 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3331 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3332
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3333 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3334 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3335 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3336 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3337 u_freebranch(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3338 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3339 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3340 u_header_T *uhpp) / if not NULL reset when freeing this header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3341 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3342 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3343
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3344 /* If this is the top branch we may need to use u_freeheader() to update
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3345 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3346 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3347 {
5448 9818311eeca0 updated for version 7.4.074 Bram Moolenaar <bram@vim.org> parents: 5446 diff changeset	3348 while (buf->b_u_oldhead != NULL)
9818311eeca0 updated for version 7.4.074 Bram Moolenaar <bram@vim.org> parents: 5446 diff changeset	3349 u_freeheader(buf, buf->b_u_oldhead, uhpp);
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3350 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3351 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3352
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3353 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3354 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3355
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3356 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3357 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3358 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3359 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3360 if (tofree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3361 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3362 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3363 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3364 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3365 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3366
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3367 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3368 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3369 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3370 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3371 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3372 u_freeentries(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3373 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3374 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3375 u_header_T *uhpp) / if not NULL reset when freeing this header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3376 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3377 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3378
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3379 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3380 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3381 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3382 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3383 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3384 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3385 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3386
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3387 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3388 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3389 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3390 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3391 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3392
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3393 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3394 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3395 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3396 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3397 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3398 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3399
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3400 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3401 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3402 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3403 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3404 u_freeentry(u_entry_T *uep, long n)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3405 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	3406 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3407 vim_free(uep->ue_array[--n]);
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3408 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3409 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3410 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3411 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3412 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3413 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3414
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3415 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3416 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3417 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3418 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3419 u_clearall(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3420 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3421 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3422 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3423 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3424 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3425 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3426 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3427
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3428 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3429 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3430 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3431 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3432 u_saveline(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3433 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3434 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3435 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	3436 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3437 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3438 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3439 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3440 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3441 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3442 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3443 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3444 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3445 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3446 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3447
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3448 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3449 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3450 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3451 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3452 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3453 u_clearline(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3454 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3455 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3456 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3457 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3458 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3459 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3460 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3461 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3462
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3463 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3464 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3465 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3466 * We also allow the cursor to be in another line.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	3467 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3468 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3469 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3470 u_undoline(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3471 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3472 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3473 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3474
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3475 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3476 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3477
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3478 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3479 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3480 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3481 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3482 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3483 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3484
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3485 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3486 if (u_savecommon(curbuf->b_u_line_lnum - 1,
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	3487 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3488 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3489 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3490 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3491 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3492 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3493 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3494 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3495 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3496 changed_bytes(curbuf->b_u_line_lnum, 0);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3497 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3498 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3499
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3500 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3501 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3502 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3503 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3504 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3505 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3506 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3507
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3508 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3509 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3510 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3511 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3512 u_blockfree(buf_T *buf)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3513 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3514 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3515 u_freeheader(buf, buf->b_u_oldhead, NULL);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3516 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3517 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3518
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3519 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3520 * u_save_line(): allocate memory and copy line 'lnum' into it.
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3521 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3522 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3523 static char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3524 u_save_line(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3525 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3526 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3527 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3528
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3529 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3530 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3531 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3532 * "nofile" and "scratch" type buffers are considered to always be unchanged.
13012 8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3533 * Also considers a buffer changed when a terminal window contains a running
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3534 * job.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3535 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3536 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3537 bufIsChanged(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3538 {
11957 bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3539 #ifdef FEAT_TERMINAL
bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3540 if (term_job_running(buf->b_term))
bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3541 return TRUE;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3542 #endif
13012 8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3543 return bufIsChangedNotTerm(buf);
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3544 }
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3545
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3546 /*
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3547 * Like bufIsChanged() but ignoring a terminal window.
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3548 */
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3549 int
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3550 bufIsChangedNotTerm(buf_T *buf)
8d5b451d7bab patch 8.0.1382: get "no write since last change" message if terminal is open Christian Brabandt <cb@256bit.org> parents: 12827 diff changeset	3551 {
11957 bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3552 return !bt_dontwrite(buf)
bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3553 && (buf->b_changed \|\| file_ff_differs(buf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3554 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3555
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3556 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3557 curbufIsChanged(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3558 {
11957 bc0fee081e1e patch 8.0.0858: can exit while a terminal is still running a job Christian Brabandt <cb@256bit.org> parents: 11836 diff changeset	3559 return bufIsChanged(curbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3560 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3561
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3562 #if defined(FEAT_EVAL) \|\| defined(PROTO)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3563 /*
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3564 * For undotree(): Append the list of undo blocks at "first_uhp" to "list".
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3565 * Recursive.
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3566 */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3567 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3568 u_eval_tree(u_header_T first_uhp, list_T list)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3569 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3570 u_header_T *uhp = first_uhp;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3571 dict_T *dict;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3572
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3573 while (uhp != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3574 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3575 dict = dict_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3576 if (dict == NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3577 return;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3578 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL);
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	3579 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3580 if (uhp == curbuf->b_u_newhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3581 dict_add_nr_str(dict, "newhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3582 if (uhp == curbuf->b_u_curhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3583 dict_add_nr_str(dict, "curhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3584 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3585 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3586
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3587 if (uhp->uh_alt_next.ptr != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3588 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3589 list_T *alt_list = list_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3590
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3591 if (alt_list != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3592 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3593 /* Recursive call to add alternate undo tree. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3594 u_eval_tree(uhp->uh_alt_next.ptr, alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3595 dict_add_list(dict, "alt", alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3596 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3597 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3598
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3599 list_append_dict(list, dict);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3600 uhp = uhp->uh_prev.ptr;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3601 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3602 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3603 #endif

Mercurial > vim

annotate src/undo.c @ 13138:0f906f414c69 v8.0.1443