vim: src/undo.c annotate

annotate src/undo.c @ 14327:b8f1167aa8ad v8.1.0179

patch 8.1.0179: redundant condition for boundary check commit https://github.com/vim/vim/commit/efc81331e7bceafa2d7bc452a98d6ec1943b4292 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jul 13 16:31:19 2018 +0200 patch 8.1.0179: redundant condition for boundary check Problem: Redundant condition for boundary check. Solution: Remove the condition. (Dominique Pelle). Change FALSE to FAIL.

author	Christian Brabandt <cb@256bit.org>
date	Fri, 13 Jul 2018 16:45:05 +0200
parents	3c80092eb211
children	9c9ee53868b9

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
14327 b8f1167aa8ad patch 8.1.0179: redundant condition for boundary check Christian Brabandt <cb@256bit.org> parents: 14301 diff changeset	269 if (top >= bot \|\| bot > curbuf->b_ml.ml_line_count + 1)
b8f1167aa8ad patch 8.1.0179: redundant condition for boundary check Christian Brabandt <cb@256bit.org> parents: 14301 diff changeset	270 return FAIL; // rely on caller to give an error message
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	271
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	275 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	279 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 * 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	281 * 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	282 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	283 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	284 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	285 u_savesub(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	287 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	290 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	294 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 * 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	296 * 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	297 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	298 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	299 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	300 u_inssub(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	301 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	302 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	303 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	304
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	305 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	306 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	307
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	308 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	309 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	310 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	311 * 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	312 * 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	313 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	314 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	315 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	316 u_savedel(linenr_T lnum, long nlines)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	317 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	318 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	319 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	320
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	321 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	322 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	323 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	324
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	325 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	326 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	327 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	329 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	330 undo_allowed(void)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	331 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	332 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	333 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	334 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	335 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	336 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	337 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	338
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	339 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	340 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	341 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	342 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	343 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	344 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	345 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	346 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	347
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	348 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	349 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	350 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	351 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	352 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	353 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	354 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	355
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	356 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	357 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	358
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	359 /*
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	360 * Get the undolevle value for the current buffer.
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	361 */
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	362 static long
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	363 get_undolevel(void)
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	364 {
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	365 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL)
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	366 return p_ul;
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	367 return curbuf->b_p_ul;
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	368 }
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	369
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	370 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	371 * 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	372 * "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	373 * "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	374 * "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	375 * "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	376 * 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	377 * 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	378 */
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	379 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	380 u_savecommon(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	381 linenr_T top,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	382 linenr_T bot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	383 linenr_T newbot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	384 int reload)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	385 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	386 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	387 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	388 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	389 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	390 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	391 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	392 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	393
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	394 if (!reload)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	395 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	396 /* 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	397 * 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	398 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	399 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	400
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	401 #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	402 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	403 * 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	404 * 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	405 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	406 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	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_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	409 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	410 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	411 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	412 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	413 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	414 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	415 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	416 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	417 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	418 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	419 #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	420 #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	421 /* 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	422 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	423 #endif
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	424
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	425 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	426 * 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	427 * 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	428 * 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	429 * (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	430 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	431 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	432 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	433 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	434 /* 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	435 * file in a way it becomes shorter. */
5621 be61f315eafe updated for version 7.4.157 Bram Moolenaar <bram@vim.org> parents: 5448 diff changeset	436 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	437 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	438 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	439 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	440
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	441 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	442 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	443 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	444
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	445 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	446
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	447 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	448 * If curbuf->b_u_synced == TRUE make a new header.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	449 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	450 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	451 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	452 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	453 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	454 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	455 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	456
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	457 if (get_undolevel() >= 0)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	458 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	459 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	460 * 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	461 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	462 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	463 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	464 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	465 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	466 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	467 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	468 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	469 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	470 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	471 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	472
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	473 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	474 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	475 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	476 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	477 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	478 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	479 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	480 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	481 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	482 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	483
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	484 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	485 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	486 */
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	487 while (curbuf->b_u_numhead > get_undolevel()
d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	488 && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	489 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	490 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	491
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	492 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	493 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	494 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	495 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	496 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	497 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	498 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	499 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	500 /* 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	501 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	502 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	503 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	504 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	505 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	506 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	507 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	508 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	509
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	510 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	511 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	512 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	513 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	514 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	516 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	517
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	518 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	519 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	520 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	521 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	522 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	523 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	524 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	525 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	526 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	527 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	528 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	529 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	530 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	531 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	532 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	533 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	534
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	535 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	536 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	537 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	538 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	539 curbuf->b_u_time_cur = uhp->uh_time + 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	540
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	541 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	542 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	543 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	544 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	545 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	556 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	558 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	559
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	560 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	562 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	563 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566 {
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	567 if (get_undolevel() < 0) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	571 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	593 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	595 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	596 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	598 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	599 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	619 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	620 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	622
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	625 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	626 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	627 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	628 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	629 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	630 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	631 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	632 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643
9536 b2aada04d84e commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4 Christian Brabandt <cb@256bit.org> parents: 9387 diff changeset	644 #if !defined(UNIX) && !defined(WIN32)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645 /*
8212 05b88224cea1 commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce Christian Brabandt <cb@256bit.org> parents: 8128 diff changeset	646 * With Amiga we can't handle big undo's, because
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	647 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	648 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	649 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	650 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	654 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	655 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	656 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	657 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	658 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	659 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	660 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	661 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	662 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	664 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	665 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	666 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	667 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	668 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	669 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	670 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	671 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	672 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	673 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	674 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	675 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	676 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	677 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	678 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	679
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	680 if (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	681 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	682 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	683 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	684 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	685 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	686 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	687 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	688 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	689 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	690 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	691 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	692 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	693 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	694 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	695 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	696 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	697 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	698 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	699 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	700 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	701 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	702 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	703 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	704 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	705 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	706 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	707 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	708 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	709
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	710 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	711 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	712 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	713 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	714
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	715 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	716 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	717 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	718 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	719 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	720 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	721 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	722 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	723 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	724 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	725 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	726
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	727 #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	728
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	729 # 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	730 # 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	731 # 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	732 # 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	733 # 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	734 # 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	735 # 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	736 # 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	737
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	738 /* extra fields for header */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	739 # 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	740
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	741 /* extra fields for uhp */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	742 # 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	743
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	744 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	745
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	746 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	747 * 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	748 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	749 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	750 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	751 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	752 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	753 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	754 char_u *p;
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 sha256_start(&ctx);
3194 972bd3fca556 updated for version 7.3.367 Bram Moolenaar <bram@vim.org> parents: 2689 diff changeset	757 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	758 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	759 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	760 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	761 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	762 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	763 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	764
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 * 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	767 * 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	768 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	769 * 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	770 * 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	771 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	772 char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	773 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	774 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	775 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	776 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	777 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	778 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	779 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	780 char_u *p;
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	781 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	782 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	783 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	784 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	785 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	786
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	787 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	788 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	789
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	790 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	791 /* 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	792 * 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	793 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	794 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	795 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	796
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	797 /* 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	798 * 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	799 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	800 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	801 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	802 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	803 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	804 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	805 /* 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	806 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	807 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	808 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	809 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	810 p = gettail(undo_file_name);
5704 47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	811 #ifdef VMS
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	812 /* 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	813 * use "dir/name" -> "dir/_un_name" - add _un_
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	814 * at the beginning to keep the extension */
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	815 mch_memmove(p + 4, p, STRLEN(p) + 1);
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	816 mch_memmove(p, "_un_", 4);
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	817
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	818 #else
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	819 /* Use same directory as the ffname,
47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	820 * "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	821 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	822 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	823 STRCAT(p, ".un~");
5704 47a673b20e49 updated for version 7.4.197 Bram Moolenaar <bram@vim.org> parents: 5621 diff changeset	824 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	825 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	826 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	827 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	828 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	829 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	830 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	831 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	832 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	833 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	834 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	835 return NULL;
11127 506f5d8b7d8b patch 8.0.0451: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 11121 diff changeset	836 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	837 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	838 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	839 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	840 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	841 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	842 }
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 /* 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	845 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	846 \|\| 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	847 break;
13244 ac42c4b11dbc patch 8.0.1496: clearing a pointer takes two lines Christian Brabandt <cb@256bit.org> parents: 13138 diff changeset	848 VIM_CLEAR(undo_file_name);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	849 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	850
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	851 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	852 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	853 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	854
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	855 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	856 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	857 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	858 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	859 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	860
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	861 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	862 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	863 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	864 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	865 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	866
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	867 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	868 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	869 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	870 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	871 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	872 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	873 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	874 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	875 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	876
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	877 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	878 * 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	879 * Buffers and encrypts as needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	880 * Returns OK or FAIL.
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	881 */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	882 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	883 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	884 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	885 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	886 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	887 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	888 size_t len_todo = len;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	889 char_u *p = ptr;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	890
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	891 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	892 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	893 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	894
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	895 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	896 len_todo -= n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	897 p += n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	898 bi->bi_used = CRYPT_BUF_SIZE;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	899 if (undo_flush(bi) == FAIL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	900 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	901 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	902 if (len_todo > 0)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	903 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	904 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	905 bi->bi_used += len_todo;
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 return OK;
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 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	910 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	911 return FAIL;
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
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	915 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	916 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	917 undo_flush(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	918 {
12216 e971ef6c0dee patch 8.0.0988: warning from Covscan about using NULL pointer Christian Brabandt <cb@256bit.org> parents: 11957 diff changeset	919 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	920 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	921 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	922 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	923 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	924 bi->bi_used = 0;
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 return OK;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	927 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	928 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	929
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 * 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	932 * Returns OK or FAIL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	933 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	934 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	935 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	936 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	937 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	938 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	939 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	940 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	941
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	942 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	943 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	944 /* crypting every piece of text separately */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	945 if (len < 100)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	946 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	947 else
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	948 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	949 copy = lalloc(len, FALSE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	950 if (copy == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	951 return 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	952 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	953 crypt_encode(bi->bi_state, ptr, len, copy);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	954 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	955 if (copy != small_buf)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	956 vim_free(copy);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	957 return i == 1 ? OK : FAIL;
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	958 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	959 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	960 return undo_write(bi, ptr, len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	961 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	962
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	963 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	964 * Write a number, MSB first, in "len" bytes.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	965 * Must match with undo_read_?c() functions.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	966 * Returns OK or FAIL.
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 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	969 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	970 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	971 char_u buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	972 int i;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	973 int bufi = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	974
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	975 for (i = len - 1; i >= 0; --i)
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	976 buf[bufi++] = (char_u)(nr >> (i * 8));
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	977 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	978 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	979
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	980 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	981 * 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	982 * 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	983 * pointers when reading. */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	984 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	985 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	986 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	987 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	988 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	989
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	990 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	991 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	992 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	993 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	994 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	995 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	996 char_u buf[4];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	997 int n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	998
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	999 undo_read(bi, buf, (size_t)4);
6216 f1ba154c3a12 updated for version 7.4.443 Bram Moolenaar <bram@vim.org> parents: 6132 diff changeset	1000 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	1001 return n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1002 }
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1003 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1004 return get4c(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1005 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1006
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1007 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1008 undo_read_2c(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1009 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1010 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1011 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1012 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1013 char_u buf[2];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1014 int n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1015
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1016 undo_read(bi, buf, (size_t)2);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1017 n = (buf[0] << 8) + buf[1];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1018 return n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1019 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1020 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1021 return get2c(bi->bi_fp);
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1022 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	1023
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1024 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1025 undo_read_byte(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1026 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1027 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1028 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1029 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1030 char_u buf[1];
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 undo_read(bi, buf, (size_t)1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1033 return buf[0];
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 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1036 return getc(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1037 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1038
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1039 static time_t
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1040 undo_read_time(bufinfo_T *bi)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1041 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1042 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1043 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1044 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1045 char_u buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1046 time_t n = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1047 int i;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1048
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1049 undo_read(bi, buf, (size_t)8);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1050 for (i = 0; i < 8; ++i)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1051 n = (n << 8) + buf[i];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1052 return n;
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 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1055 return get8ctime(bi->bi_fp);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1056 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1057
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 * Read "buffer[size]" from the undo file.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1060 * Return OK or FAIL.
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 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1063 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	1064 {
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	1065 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	1066
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1067 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1068 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1069 {
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	1070 int size_todo = (int)size;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1071 char_u *p = buffer;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1072
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1073 while (size_todo > 0)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1074 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1075 size_t n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1076
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1077 if (bi->bi_used >= bi->bi_avail)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1078 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1079 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	1080 if (n == 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1081 {
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	1082 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	1083 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1084 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1085 bi->bi_avail = n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1086 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1087 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	1088 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1089 n = size_todo;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1090 if (n > bi->bi_avail - bi->bi_used)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1091 n = bi->bi_avail - bi->bi_used;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1092 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	1093 bi->bi_used += n;
6132 0242c27e40e1 updated for version 7.4.404 Bram Moolenaar <bram@vim.org> parents: 6128 diff changeset	1094 size_todo -= (int)n;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1095 p += n;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1096 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1097 }
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	1098 else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1099 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1100 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	1101 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	1102
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 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	1104 /* 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	1105 * 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	1106 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	1107 return retval;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1108 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1109
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1110 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1111 * 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	1112 * "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	1113 * Decrypt the bytes if needed.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1114 * Append a NUL.
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1115 * 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	1116 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1117 static char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1118 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	1119 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1120 char_u *ptr = alloc((unsigned)len + 1);
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 if (ptr != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1123 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1124 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	1125 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1126 vim_free(ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1127 return 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 ptr[len] = NUL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1130 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1131 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	1132 crypt_decode_inplace(bi->bi_state, ptr, len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1133 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1134 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1135 return ptr;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1136 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1137
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1138 /*
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1139 * 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	1140 */
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1141 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1142 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	1143 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1144 int len;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1145 buf_T *buf = bi->bi_buf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1146 FILE *fp = bi->bi_fp;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1147 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	1148
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1149 /* 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	1150 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	1151 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	1152
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1153 /* 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	1154 * 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	1155 #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	1156 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	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 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	1159 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	1160
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1161 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	1162 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	1163 buf->b_p_key, &header, &header_len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1164 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	1165 return FAIL;
2245 4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more. Bram Moolenaar <bram@vim.org> parents: 2242 diff changeset	1166 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	1167 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	1168 if (len != 1)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1169 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1170 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1171 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	1172 return FAIL;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1173 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1174
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1175 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	1176 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1177 bi->bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1178 if (bi->bi_buffer == NULL)
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 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1181 bi->bi_state = NULL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1182 return FAIL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1183 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1184 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1185 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1186 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1187 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1188 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1189 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	1190
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1191
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1192 /* 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	1193 * same when reading the buffer text. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1194 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	1195 return FAIL;
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 /* buffer-specific data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1198 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	1199 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	1200 undo_write_bytes(bi, (long_u)len, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1201 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	1202 return FAIL;
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_u_line_lnum, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1204 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	1205
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1206 /* Undo structures header data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1207 put_header_ptr(bi, buf->b_u_oldhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1208 put_header_ptr(bi, buf->b_u_newhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1209 put_header_ptr(bi, buf->b_u_curhead);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1210
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1211 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	1212 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	1213 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	1214 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	1215 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	1216
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1217 /* Optional fields. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1218 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1219 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	1220 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	1221
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1222 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	1223
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1224 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1225 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1226
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1227 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1228 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	1229 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1230 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1231 u_entry_T *uep;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1232 char_u time_buf[8];
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1233
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1234 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	1235 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1236
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1237 put_header_ptr(bi, uhp->uh_next.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1238 put_header_ptr(bi, uhp->uh_prev.ptr);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1239 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	1240 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	1241 undo_write_bytes(bi, uhp->uh_seq, 4);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1242 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	1243 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1244 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	1245 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1246 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	1247 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1248 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	1249 /* 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	1250 for (i = 0; i < NMARKS; ++i)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1251 serialize_pos(bi, uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1252 serialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1253 time_to_bytes(uhp->uh_time, time_buf);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1254 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	1255
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1256 /* Optional fields. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1257 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1258 undo_write_bytes(bi, UHP_SAVE_NR, 1);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1259 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	1260
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1261 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	1262
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1263 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1264 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	1265 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1266 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	1267 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	1268 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1269 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1270 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	1271 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1272 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1273
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1274 static u_header_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1275 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	1276 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1277 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1278 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1279 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	1280 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1281 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1282
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1283 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	1284 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1285 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1286 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	1287 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1288 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1289 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1290 uhp->uh_next.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1291 uhp->uh_prev.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1292 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	1293 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	1294 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	1295 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1296 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1297 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	1298 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1299 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1300 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1301 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	1302 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1303 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	1304 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1305 (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	1306 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1307 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	1308 for (i = 0; i < NMARKS; ++i)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1309 unserialize_pos(bi, &uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1310 unserialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1311 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	1312
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1313 /* Optional fields. */
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1314 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1315 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1316 int len = undo_read_byte(bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1317 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1318
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1319 if (len == 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1320 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1321 what = undo_read_byte(bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1322 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1323 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1324 case UHP_SAVE_NR:
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1325 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	1326 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1327 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1328 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1329 while (--len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1330 (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	1331 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1332 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1333
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1334 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1335 last_uep = NULL;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1336 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	1337 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1338 error = FALSE;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1339 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	1340 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1341 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1342 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1343 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1344 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1345 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1346 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1347 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1348 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1349 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1350 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1351 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	1352 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1353 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	1354 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1355 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1356 }
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 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1359 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1360
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1361 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1362 * Serialize "uep".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1363 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1364 static int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1365 serialize_uep(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1366 bufinfo_T *bi,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1367 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	1368 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1369 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1370 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1371
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1372 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	1373 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	1374 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	1375 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	1376 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	1377 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1378 len = STRLEN(uep->ue_array[i]);
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1379 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	1380 return FAIL;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1381 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	1382 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1383 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1384 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1385 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1386
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1387 static u_entry_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1388 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	1389 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1390 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1391 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	1392 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	1393 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1394 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1395
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1396 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	1397 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1398 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1399 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	1400 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1401 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	1402 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1403 uep->ue_top = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1404 uep->ue_bot = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1405 uep->ue_lcount = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1406 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	1407 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	1408 {
10978 f3d64d9e5d76 patch 8.0.0378: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10976 diff changeset	1409 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	1410 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	1411 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1412 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1413 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1414 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1415 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1416 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	1417 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1418 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	1419
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1420 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	1421 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1422 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	1423 if (line_len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1424 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	1425 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1426 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1427 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1428 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	1429 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1430 if (line == NULL)
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 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1433 return uep;
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 array[i] = line;
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 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1438 }
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 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1441 * Serialize "pos".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1442 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1443 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1444 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	1445 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1446 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	1447 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	1448 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1449 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	1450 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1451 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	1452 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1453 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1454
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1455 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1456 * 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	1457 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1458 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1459 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	1460 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1461 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	1462 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1463 pos->lnum = 0;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1464 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	1465 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1466 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	1467 #ifdef FEAT_VIRTUALEDIT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1468 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	1469 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1470 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	1471 #else
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1472 (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	1473 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1474 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1475
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1476 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1477 * Serialize "info".
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1478 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1479 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1480 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	1481 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1482 serialize_pos(bi, info->vi_start);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1483 serialize_pos(bi, info->vi_end);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1484 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	1485 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	1486 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1487
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1488 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1489 * 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	1490 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1491 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1492 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	1493 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1494 unserialize_pos(bi, &info->vi_start);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1495 unserialize_pos(bi, &info->vi_end);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1496 info->vi_mode = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1497 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	1498 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1499
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1500 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1501 * 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	1502 * 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	1503 * 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	1504 * "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	1505 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1506 * "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	1507 * "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	1508 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1509 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1510 u_write_undo(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1511 char_u *name,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1512 int forceit,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1513 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1514 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	1515 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1516 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	1517 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1518 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1519 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1520 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	1521 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1522 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1523 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1524 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1525 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	1526 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1527 int st_old_valid = FALSE;
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1528 stat_T st_old;
f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1529 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	1530 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1531 bufinfo_T bi;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1532
6128 3aa37ad2c4ed updated for version 7.4.402 Bram Moolenaar <bram@vim.org> parents: 6122 diff changeset	1533 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	1534
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1535 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1536 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1537 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	1538 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	1539 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1540 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	1541 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1542 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1543 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	1544 _("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	1545 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1546 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1547 return;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1548 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1549 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1550 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1551 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	1552
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 * 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	1555 * 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	1556 * 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	1557 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1558 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1559 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	1560 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1561 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1562 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	1563 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1564 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	1565 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	1566 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1567 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1568 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	1569 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1570 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1571 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1572 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1573
6771 63b2bc619d5a patch 7.4.707 Bram Moolenaar <bram@vim.org> parents: 6616 diff changeset	1574 /* strip any s-bit and executable bit */
63b2bc619d5a patch 7.4.707 Bram Moolenaar <bram@vim.org> parents: 6616 diff changeset	1575 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	1576
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1577 /* 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	1578 * 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	1579 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	1580 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1581 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	1582 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1583 /* 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	1584 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	1585 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1586 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1587 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	1588 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1589 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	1590 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1591 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	1592 _("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	1593 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	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_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1596 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1597 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1598 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1599 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1600 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1601 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	1602 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1603
2664 033e7b49356c updated for version 7.3.083 Bram Moolenaar <bram@vim.org> parents: 2627 diff changeset	1604 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	1605 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1606 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	1607 \|\| 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	1608 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1609 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	1610 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1611 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	1612 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1613 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1614 _("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	1615 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	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_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1618 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1619 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1620 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1621 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1622 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1623 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	1624 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1625
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1626 /* 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	1627 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1628 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	1629 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1630 if (p_verbose > 0)
2262 771f21e35ec5 Minor typo and docs update. Bram Moolenaar <bram@vim.org> parents: 2251 diff changeset	1631 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	1632 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1633 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1634
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1635 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	1636 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	1637 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1638 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1639 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	1640 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1641 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1642 (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	1643 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	1644 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1645 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1646 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	1647 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1648 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1649
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1650 #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	1651 /* 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	1652 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1653 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1654
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1655 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1656 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1657 * 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	1658 * 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	1659 * 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	1660 */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1661 if (st_old_valid
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1662 && 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	1663 && 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	1664 # 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	1665 && 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	1666 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1667 )
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1668 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	1669 # 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	1670 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	1671 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	1672 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1673 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1674
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1675 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	1676 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1677 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1678 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	1679 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1680 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	1681 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1682 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1683
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1684 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1685 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1686
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1687 /*
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1688 * 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	1689 */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1690 bi.bi_buf = buf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1691 bi.bi_fp = fp;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1692 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	1693 goto write_error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1694
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1695 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1696 * 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	1697 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1698 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1699 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	1700 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1701 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1702 /* 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	1703 if (uhp->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1704 {
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1705 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	1706 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1707 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1708 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1709 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	1710 goto write_error;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1711 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1712
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1713 /* 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	1714 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	1715 uhp = uhp->uh_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1716 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	1717 && 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	1718 uhp = uhp->uh_alt_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1719 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	1720 && uhp->uh_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1721 uhp = uhp->uh_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1722 else if (uhp->uh_alt_prev.ptr != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1723 uhp = uhp->uh_alt_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1724 else
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1725 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	1726 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1727
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1728 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	1729 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1730 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1731 if (headers_written != buf->b_u_numhead)
4827 60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1732 {
60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1733 EMSGN("Written %ld headers, ...", headers_written);
60301d4d1682 updated for version 7.3.1160 Bram Moolenaar <bram@vim.org> parents: 4303 diff changeset	1734 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	1735 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1736 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1737
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1738 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1739 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	1740 write_ok = FALSE;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1741 #endif
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1742
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1743 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1744 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1745 if (!write_ok)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1746 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	1747
12716 351cf7c67bbe patch 8.0.1236: Mac features are confusing Christian Brabandt <cb@256bit.org> parents: 12293 diff changeset	1748 #if defined(WIN3264)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1749 /* 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	1750 * 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	1751 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	1752 (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	1753 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1754 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1755 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	1756 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1757 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	1758
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1759 /* 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	1760 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	1761 mch_set_acl(file_name, acl);
3545 74d51b51f3e6 updated for version 7.3.533 Bram Moolenaar <bram@vim.org> parents: 3194 diff changeset	1762 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	1763 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1764 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1765
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1766 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1767 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1768 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1769 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1770 vim_free(bi.bi_buffer);
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1771 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1772 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	1773 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	1774 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1775
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1776 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1777 * 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	1778 * 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	1779 * 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	1780 * 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	1781 * "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	1782 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1783 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	1784 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	1785 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1786 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	1787 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1788 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	1789 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	1790 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	1791 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	1792 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	1793 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	1794 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	1795 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	1796 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	1797 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	1798 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	1799 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	1800 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1801 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1802 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	1803 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	1804 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	1805 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	1806 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1807 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	1808 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1809 #ifdef UNIX
9387 f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1810 stat_T st_orig;
f094d4085014 commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe Christian Brabandt <cb@256bit.org> parents: 8568 diff changeset	1811 stat_T st_undo;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1812 #endif
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1813 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	1814
6128 3aa37ad2c4ed updated for version 7.4.402 Bram Moolenaar <bram@vim.org> parents: 6122 diff changeset	1815 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	1816 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1817 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1818 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	1819 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	1820 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1821
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1822 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1823 /* 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	1824 * 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	1825 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	1826 && 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	1827 && st_orig.st_uid != st_undo.st_uid
00d61a47df66 updated for version 7.4.024 Bram Moolenaar <bram@vim.org> parents: 4827 diff changeset	1828 && 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	1829 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1830 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1831 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1832 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1833 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	1834 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1835 verbose_leave();
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 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1838 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1839 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1840 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1841 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1842 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	1843
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1844 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	1845 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1846 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1847 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	1848 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1849 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1850
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1851 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	1852 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1853 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1854 if (name != NULL \|\| p_verbose > 0)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1855 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	1856 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1857 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1858 bi.bi_buf = curbuf;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1859 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	1860
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1861 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1862 * 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	1863 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1864 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	1865 \|\| 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	1866 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1867 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	1868 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1869 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1870 version = get2c(fp);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1871 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	1872 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1873 #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	1874 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	1875 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1876 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	1877 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1878 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1879 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1880 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	1881 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	1882 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1883 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	1884 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	1885 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1886 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	1887 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1888 bi.bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1889 if (bi.bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1890 {
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1891 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1892 bi.bi_state = NULL;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1893 goto error;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1894 }
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1895 bi.bi_avail = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1896 bi.bi_used = 0;
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1897 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1898 #else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1899 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	1900 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	1901 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1902 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1903 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	1904 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1905 EMSG2(_("E824: Incompatible undo file: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1906 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1907 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1908
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1909 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	1910 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1911 corruption_error("hash", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1912 goto error;
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1913 }
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1914 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	1915 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	1916 \|\| 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	1917 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1918 if (p_verbose > 0 \|\| name != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1919 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1920 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	1921 verbose_enter();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1922 give_warning((char_u *)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1923 _("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	1924 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	1925 verbose_leave();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1926 }
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1927 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1928 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1929
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1930 /* Read undo data for "U" command. */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1931 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	1932 if (str_len < 0)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1933 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1934 if (str_len > 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1935 line_ptr = read_string_decrypt(&bi, str_len);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1936 line_lnum = (linenr_T)undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1937 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	1938 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	1939 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1940 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	1941 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1942 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1943
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1944 /* Begin general undo data */
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1945 old_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1946 new_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1947 cur_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1948 num_head = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1949 seq_last = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1950 seq_cur = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1951 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	1952
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1953 /* Optional header fields. */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1954 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1955 {
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1956 int len = undo_read_byte(&bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1957 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1958
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1959 if (len == 0 \|\| len == EOF)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1960 break;
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1961 what = undo_read_byte(&bi);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1962 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1963 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1964 case UF_LAST_SAVE_NR:
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1965 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	1966 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1967 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1968 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1969 while (--len >= 0)
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1970 (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	1971 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1972 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1973
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1974 /* 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	1975 * 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	1976 * 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	1977 * 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	1978 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1979 {
10976 f97a72ad8ffa patch 8.0.0377: possible overflow when reading corrupted undo file Christian Brabandt <cb@256bit.org> parents: 10631 diff changeset	1980 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	1981 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	1982 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	1983 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1984 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1985 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1986
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1987 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	1988 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1989 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1990 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1991 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	1992 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1993 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1994
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	1995 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	1996 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1997 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1998 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1999 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2000
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2001 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2002 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2003 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2004 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2005 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2006 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	2007 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2008 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	2009 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2010 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2011
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2012 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2013 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	2014 (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	2015 # 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	2016 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2017 # 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	2018 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2019
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	2020 /* 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	2021 * 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	2022 * 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	2023 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	2024 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2025 uhp = uhp_table[i];
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2026 if (uhp == NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2027 continue;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2028 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2029 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	2030 && 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	2031 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2032 corruption_error("duplicate uh_seq", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2033 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2034 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2035 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2036 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	2037 && 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	2038 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2039 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	2040 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2041 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2042 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2043 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2044 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	2045 && 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	2046 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2047 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	2048 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2049 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2050 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2051 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2052 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	2053 && 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	2054 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2055 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	2056 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2057 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2058 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2059 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2060 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	2061 && 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	2062 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2063 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	2064 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2065 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2066 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2067 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	2068 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2069 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	2070 SET_FLAG(i);
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 (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	2073 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2074 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	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 (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	2078 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2079 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	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 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2082 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2083
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2084 /* 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	2085 * 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	2086 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	2087 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	2088 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	2089 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	2090 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	2091 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	2092 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	2093 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	2094 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	2095 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	2096 curbuf->b_u_time_cur = seq_time;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2097 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	2098 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	2099
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	2100 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	2101 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	2102
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2103 #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	2104 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	2105 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	2106 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	2107 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	2108 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2109 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	2110
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2111 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2112 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	2113 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2114
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2115 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2116 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	2117 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	2118 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2119 for (i = 0; i < num_read_uhps; i++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2120 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	2121 u_free_uhp(uhp_table[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2122 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	2123 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2124
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2125 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	2126 #ifdef FEAT_CRYPT
6122 18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2127 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2128 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399 Bram Moolenaar <bram@vim.org> parents: 5788 diff changeset	2129 vim_free(bi.bi_buffer);
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	2130 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2131 if (fp != NULL)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	2132 fclose(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2133 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	2134 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	2135 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2136 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2137
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2138 #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	2139
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2140
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2141 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2142 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2143 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2144 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2145 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2146 u_undo(int count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2147 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2148 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2149 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2150 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2151 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2152 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2153 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2154 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2155 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2156 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2157 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2158
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2159 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2160 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2161 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2162 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2163 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2164 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2165
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2166 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2167 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2168 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2169 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2170 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2171 u_redo(int count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2172 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2173 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2174 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2175 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2176 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2177
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2178 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2179 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2180 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2181 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2182 u_doit(int startcount)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2183 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2184 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2185
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	2186 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2187 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2188
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2189 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2190 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2191 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2192 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2193 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2194 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2195 /* 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	2196 * 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	2197 * 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	2198 * and more. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2199 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2200
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2201 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2202 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2203 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2204 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	2205 else if (get_undolevel() > 0) /* multi level undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2206 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2207 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2208 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2209 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2210 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2211 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2212 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2213 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2214 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2215 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2216 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2217 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2218 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2219 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2220 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2221
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2222 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2223 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2224 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2225 {
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	2226 if (curbuf->b_u_curhead == NULL \|\| get_undolevel() <= 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2227 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2228 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2229 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2230 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2231 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2232 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2233 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2234 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2235 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2236
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2237 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2238
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2239 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2240 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2241 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2242 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	2243 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2244 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2245 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2246 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2247 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2248
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2249 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2250 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2251 * 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	2252 * 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	2253 * seconds.
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2254 * When "file" is TRUE use "step" as a number of file writes.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2255 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2256 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2257 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2258 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2259 undo_time(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2260 long step,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2261 int sec,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2262 int file,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2263 int absolute)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2264 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2265 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2266 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2267 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2268 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2269 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	2270 u_header_T *uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2271 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2272 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2273 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2274 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2275 int dosec = sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2276 int dofile = file;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2277 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2278 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2279
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2280 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2281 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2282 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2283
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2284 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2285 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2286 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2287 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2288
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2289 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2290 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2291 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2292 {
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2293 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2294 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2295 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2296 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2297 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2298 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2299 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	2300 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2301 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2302 if (step < 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2303 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2304 /* 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	2305 * 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	2306 * 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	2307 uhp = curbuf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2308 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2309 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2310 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2311 uhp = curbuf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2312 if (uhp != NULL && uhp->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2313 /* "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	2314 * there were no changes since the last write */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2315 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2316 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2317 /* 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	2318 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	2319 if (target <= 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2320 /* 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	2321 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2322 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2323 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2324 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2325 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2326 /* Moving forward to a newer write. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2327 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2328 if (target > curbuf->b_u_save_nr_last)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2329 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2330 /* 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	2331 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2332 target = curbuf->b_u_seq_last + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2333 dofile = FALSE;
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 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2336 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2337 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2338 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2339 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2340 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2341 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2342 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2343 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2344 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2345 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2346 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2347 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2348 closest = (long)(vim_time() + 1);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2349 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2350 closest = curbuf->b_u_save_nr_last + 2;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2351 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2352 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2353 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2354 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2355 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2356 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2357 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2358 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2359
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2360 /* 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	2361 if (target == 0)
13138 0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2362 {
0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2363 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	2364 goto target_zero;
0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2365 }
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2366
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2367 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2368 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2369 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2370 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2371 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2372 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2373 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2374 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2375 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2376 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2377 /* 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	2378 * 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	2379 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2380 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2381 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2382 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2383
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2384 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2385 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2386 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2387 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2388
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2389 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2390 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2391 uhp->uh_walk = mark;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2392 if (dosec)
10518 de77fa909414 commit https://github.com/vim/vim/commit/cbd4de44e8d08fba3c09eb40ad6e36e83faf020a Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	2393 val = (long)(uhp->uh_time);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2394 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2395 val = uhp->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2396 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2397 val = uhp->uh_seq;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2398
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2399 if (round == 1 && !(dofile && val == 0))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2400 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2401 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2402 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2403 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2404 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2405 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2406 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2407 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2408 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2409 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2410 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2411 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2412 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2413 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2414 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2415 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2416 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2417 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2418 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2419 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2420 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2421 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2422 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2423 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2424
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2425 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2426 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2427 if (target == val && !dosec)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2428 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2429 target = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2430 break;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2431 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2432
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2433 /* 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	2434 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	2435 && 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	2436 uhp = uhp->uh_prev.ptr;
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 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	2439 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	2440 && 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	2441 && 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	2442 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2443
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2444 /* 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	2445 * 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	2446 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	2447 && 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	2448 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2449 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2450 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2451 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2452 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	2453 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2454 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2455
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2456 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2457 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2458 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2459 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	2460 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	2461 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2462 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2463 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2464 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2465 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2466
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2467 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2468 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2469
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2470 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2471 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2472 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2473 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2474 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2475
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2476 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2477 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2478 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2479 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2480 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2481 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2482 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2483 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2484
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2485 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2486 dosec = FALSE;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2487 dofile = FALSE;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2488 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2489 above = TRUE; /* stop above the header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2490 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2491
13138 0f906f414c69 patch 8.0.1443: compiler complains about uninitialized variable Christian Brabandt <cb@256bit.org> parents: 13134 diff changeset	2492 target_zero:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2493 /* 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	2494 if (uhp != NULL \|\| target == 0)
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 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2497 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2498 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2499 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2500 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2501 /* 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	2502 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2503
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2504 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2505 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2506 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2507 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2508 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	2509 if (uhp == NULL \|\| (target > 0 && uhp->uh_walk != mark)
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2510 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2511 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2512 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2513 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	2514 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	2515 uhp->uh_walk = nomark; /* don't go back down here */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2516 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2517
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2518 /* 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	2519 if (target > 0)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2520 {
13134 c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2521 /*
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2522 * 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	2523 */
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2524 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	2525 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2526 /* 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	2527 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	2528
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2529 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	2530 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	2531 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2532
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2533 /* 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	2534 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	2535 && 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	2536 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	2537
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2538 /* 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	2539 last = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2540 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	2541 && 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	2542 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	2543 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	2544 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2545 /* 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	2546 * 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	2547 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	2548 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	2549 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	2550 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	2551 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	2552 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	2553 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	2554 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	2555 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	2556 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	2557
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2558 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	2559 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	2560 uhp = last;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2561 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	2562 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	2563 }
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_curhead = uhp;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2565
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_walk != mark)
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2567 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	2568
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2569 /* 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	2570 * 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	2571 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	2572 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2573 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	2574 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2575 }
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2576
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2577 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	2578
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2579 /* 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	2580 * 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	2581 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	2582 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	2583 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	2584 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	2585
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_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	2587 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2588
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2589 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	2590 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	2591 {
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2592 /* 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	2593 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	2594 break;
c4b5ad2b3596 patch 8.0.1441: using ":undo 0" leaves undo in wrong state Christian Brabandt <cb@256bit.org> parents: 13012 diff changeset	2595 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2596 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2597 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2598 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2599 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2600 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2601
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2602 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2603 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2604 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2605 * 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	2606 * 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	2607 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2608 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2609 * 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	2610 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2611 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2612 u_undoredo(int undo)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2613 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2614 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2615 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2616 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2617 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2618 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2619 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2620 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2621 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2622 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2623 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2624 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2625 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2626 visualinfo_T visualinfo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2627 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2628 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2629
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2630 /* 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	2631 * invalid till the end. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2632 block_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2633
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2634 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2635 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2636 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2637 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2638 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2639 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2640 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2641
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2642 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2643 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2644 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2645 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2646 visualinfo = curbuf->b_visual;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2647 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2648 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2649 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2650 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2651
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2652 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2653 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2654 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2655 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2656 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2657 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2658 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2659 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2660 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2661 unblock_autocmds();
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	2662 IEMSG(_("E438: u_undo: line numbers wrong"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2663 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2664 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2665 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2666
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2667 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2668 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2669
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2670 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2671 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2672 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2673 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2674 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2675 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2676 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2677 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2678 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2679 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2680 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2681 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2682 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2683 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2684 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2685 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2686 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2687 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2688 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2689 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2690 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2691 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2692 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2693 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2694 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2695 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2696 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2697 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2698 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2699 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2700 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2701
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2702 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2703
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2704 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2705 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2706 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2707 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	2708 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2709 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2710 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2711 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2712 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2713 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2714 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2715 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2716 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2717 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2718 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2719 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2720 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2721 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2722 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2723 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2724 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2725 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2726 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2727 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2728 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2729 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2730 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2731 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2732 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2733 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2734 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2735 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2736 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2737 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2738
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2739 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2740 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2741 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2742 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2743 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2744 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2745 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2746 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2747 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2748 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2749 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2750 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2751 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	2752 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2753 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2754 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2755 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2756
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2757 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2758 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2759 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2760 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2761 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2762 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2763 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2764 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2765 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2766 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2767
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2768 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2769
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2770 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2771 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2772 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2773 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2774 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2775 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2776 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2777
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2778 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2779 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2780 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2781 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2782 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2783
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2784 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2785 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2786 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2787 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2788 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2789 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2790 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2791
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2792 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2793 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	2794 if ((old_flags & UH_EMPTYBUF) && BUFEMPTY())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2795 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2796 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2797 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2798 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2799 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2800 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2801 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2802 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2803 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2804
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2805 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2806 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2807 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2808 for (i = 0; i < NMARKS; ++i)
6616 290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2809 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2810 if (curhead->uh_namedm[i].lnum != 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2811 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	2812 if (namedm[i].lnum != 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2813 curhead->uh_namedm[i] = namedm[i];
6616 290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2814 else
290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2815 curhead->uh_namedm[i].lnum = 0;
290631797b76 updated for version 7.4.634 Bram Moolenaar <bram@vim.org> parents: 6216 diff changeset	2816 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2817 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2818 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2819 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2820 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2821 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2822
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2823 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2824 * 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	2825 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2826 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2827 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2828 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2829 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2830 --curwin->w_cursor.lnum;
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2831 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2832 {
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2833 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	2834 {
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2835 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2836 #ifdef FEAT_VIRTUALEDIT
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2837 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	2838 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	2839 else
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2840 curwin->w_cursor.coladd = 0;
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2841 #endif
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2842 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2843 else
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2844 beginline(BL_SOL \| BL_FIX);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2845 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2846 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2847 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2848 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2849 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2850 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2851 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2852 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2853 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2854 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2855 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2856 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2857
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2858 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2859 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2860
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2861 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2862 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2863 if (undo)
12827 ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2864 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2865 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2866 * 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	2867 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	2868 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	2869 else
ff494a964ab7 patch 8.0.1290: seq_cur of undotree() wrong after undo Christian Brabandt <cb@256bit.org> parents: 12716 diff changeset	2870 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	2871 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2872
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2873 /* 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	2874 if (curhead->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2875 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2876 if (undo)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2877 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	2878 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2879 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	2880 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2881
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2882 /* 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	2883 * 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	2884 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	2885
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2886 unblock_autocmds();
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2887 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2888 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2889 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2890 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2891
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2892 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2893 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2894 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2895 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2896 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2897 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2898 u_undo_end(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2899 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	2900 int absolute) /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2901 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2902 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2903 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2904 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2905
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2906 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2907 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2908 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2909 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2910
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2911 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2912 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2913 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2914
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2915 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2916 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2917
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2918 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2919 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2920 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2921 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2922 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2923 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2924 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2925 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2926 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2927 else
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_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2931 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2932 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2933 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2934 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2935
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2936 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2937 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2938 /* 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	2939 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2940 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2941 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2942 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2943 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2944 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2945 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2946 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2947 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2948 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2949 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2950 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2951
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2952 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2953 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2954 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2955 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2956
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2957 #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	2958 {
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2959 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	2960
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2961 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	2962 {
2378 85b7dc8da5eb Add the 'concealcursor' option to decide when the cursor line is to be Bram Moolenaar <bram@vim.org> parents: 2367 diff changeset	2963 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	2964 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	2965 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2966 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2967 #endif
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2968
14237 487d7bda80ea patch 8.1.0135: undo message delays screen update for CTRL-O u Christian Brabandt <cb@256bit.org> parents: 14147 diff changeset	2969 smsg_attr_keep(0, (char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2970 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2971 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2972 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2973 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2974 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2975 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2976
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2977 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2978 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2979 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2980 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2981 u_sync(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	2982 int force) /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2983 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2984 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2985 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2986 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2987 #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	2988 if (p_imst == IM_ON_THE_SPOT && im_is_preediting())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2989 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2990 #endif
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	2991 if (get_undolevel() < 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2992 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2993 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2994 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2995 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2996 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2997 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2998 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2999
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3000 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3001 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3002 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3003 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3004 ex_undolist(exarg_T *eap UNUSED)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3005 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3006 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3007 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3008 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3009 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3010 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3011 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3012
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3013 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3014 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3015 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3016 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3017 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3018 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3019 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3020 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3021
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3022 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3023 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3024 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3025 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	3026 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3027 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3028 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3029 break;
13610 e76499e85744 patch 8.0.1677: no compiler warning for wrong format in vim_snprintf() Christian Brabandt <cb@256bit.org> parents: 13380 diff changeset	3030 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7d ",
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3031 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3032 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3033 uhp->uh_time);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3034 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	3035 {
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3036 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	3037 STRCAT(IObuff, " ");
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3038 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	3039 " %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	3040 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3041 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3042 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3043
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3044 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3045
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3046 /* 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	3047 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	3048 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3049 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3050 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3051 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3052 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3053
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3054 /* 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	3055 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	3056 && 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	3057 && 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	3058 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3059
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3060 /* 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	3061 * 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	3062 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	3063 && 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	3064 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3065 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3066 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3067 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3068 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3069
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3070 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3071 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3072 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3073 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	3074 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	3075 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3076 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3077 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3078 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3079 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3080 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3081 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3082 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3083
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3084 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3085 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3086 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3087 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3088 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3089
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3090 msg_start();
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3091 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	3092 HL_ATTR(HLF_T));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3093 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3094 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3095 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3096 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3097 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3098 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3099 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3100 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3101
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3102 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3103 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3104 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3105
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3106 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3107 * 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	3108 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3109 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3110 u_add_time(char_u *buf, size_t buflen, time_t tt)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3111 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3112 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3113 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3114
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	3115 if (vim_time() - tt >= 100)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3116 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3117 curtime = localtime(&tt);
9674 adc7212951ee commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a Christian Brabandt <cb@256bit.org> parents: 9536 diff changeset	3118 if (vim_time() - tt < (60L * 60L * 12L))
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3119 /* within 12 hours */
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	3120 (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	3121 else
3751 b7eea2409507 updated for version 7.3.634 Bram Moolenaar <bram@vim.org> parents: 3545 diff changeset	3122 /* longer ago */
2689 26fb122355d4 updated for version 7.3.107 Bram Moolenaar <bram@vim.org> parents: 2685 diff changeset	3123 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3124 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3125 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3126 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	3127 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	3128 (long)(vim_time() - tt));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3129 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3130
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	3131 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3132 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3133 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3134 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3135 ex_undojoin(exarg_T *eap UNUSED)
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3136 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3137 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3138 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3139 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3140 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3141 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3142 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	3143 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3144 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3145 return; /* already unsynced */
5446 d0595545e98a updated for version 7.4.073 Bram Moolenaar <bram@vim.org> parents: 5343 diff changeset	3146 if (get_undolevel() < 0)
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3147 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3148 else
10631 cbf17371627c patch 8.0.0205: wrong behavior after :undojoin Christian Brabandt <cb@256bit.org> parents: 10518 diff changeset	3149 /* 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	3150 curbuf->b_u_synced = FALSE;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3151 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3152
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	3153 /*
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	3154 * Called after writing or reloading the file and setting b_changed to FALSE.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3155 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3156 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3157 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3158 u_unchanged(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3159 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3160 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3161 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3162 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3163
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3164 /*
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3165 * 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	3166 * 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	3167 */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 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_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	3170 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3171 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	3172 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	3173 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	3174
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3175 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	3176 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	3177
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3178 /* 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	3179 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	3180 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	3181 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3182
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3183 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	3184 && 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	3185 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	3186 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	3187 {
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10978 diff changeset	3188 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	3189 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	3190 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3191 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3192 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	3193 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3194 /* 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	3195 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	3196 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	3197 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3198 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3199
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	3200 /*
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3201 * 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	3202 * used for "u".
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3203 */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3204 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3205 u_update_save_nr(buf_T *buf)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3206 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3207 u_header_T *uhp;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3208
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3209 ++buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3210 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	3211 uhp = buf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3212 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3213 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3214 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3215 uhp = buf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3216 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3217 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	3218 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	3219
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3220 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3221 u_unch_branch(u_header_T *uhp)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3222 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3223 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3224
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3225 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3226 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3227 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	3228 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	3229 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3230 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3231 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3232
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3233 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3234 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3235 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3236 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3237 static u_entry_T *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3238 u_get_headentry(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3239 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3240 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3241 {
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	3242 IEMSG(_("E439: undo list corrupt"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3243 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3244 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3245 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3246 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3247
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3248 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3249 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3250 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3251 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3252 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3253 u_getbot(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3254 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3255 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3256 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3257
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3258 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3259 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3260 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3261
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3262 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3263 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3264 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3265 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3266 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3267 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3268 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3269 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3270 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3271 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3272 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3273 {
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10336 diff changeset	3274 IEMSG(_("E440: undo line missing"));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3275 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3276 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3277 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3278 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3279 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3280
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3281 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3282 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3283
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3284 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3285 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3286
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3287 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3288 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3289 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3290 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3291 u_freeheader(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3292 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3293 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3294 u_header_T *uhpp) / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3295 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3296 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3297
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3298 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3299 * 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	3300 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	3301 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3302
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3303 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	3304 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3305
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3306 /* 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	3307 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	3308 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3309 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3310 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3311
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3312 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	3313 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3314 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3315 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	3316 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	3317 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3318
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3319 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3320 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3321
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3322 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3323 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3324 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3325 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3326 u_freebranch(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3327 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3328 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3329 u_header_T *uhpp) / if not NULL reset when freeing this header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3330 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3331 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3332
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3333 /* 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	3334 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3335 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3336 {
5448 9818311eeca0 updated for version 7.4.074 Bram Moolenaar <bram@vim.org> parents: 5446 diff changeset	3337 while (buf->b_u_oldhead != NULL)
9818311eeca0 updated for version 7.4.074 Bram Moolenaar <bram@vim.org> parents: 5446 diff changeset	3338 u_freeheader(buf, buf->b_u_oldhead, uhpp);
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3339 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3340 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3341
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3342 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	3343 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3344
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3345 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3346 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3347 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3348 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3349 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	3350 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	3351 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3352 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3353 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3354 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3355
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3356 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3357 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3358 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3359 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3360 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3361 u_freeentries(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3362 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3363 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3364 u_header_T *uhpp) / if not NULL reset when freeing this header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3365 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3366 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3367
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3368 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3369 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3370 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3371 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3372 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3373 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3374 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3375
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3376 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3377 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3378 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3379 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3380 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3381
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3382 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3383 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3384 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3385 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3386 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3387 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3388
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3389 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3390 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3391 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3392 static void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3393 u_freeentry(u_entry_T *uep, long n)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3394 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	3395 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3396 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	3397 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3398 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3399 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3400 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3401 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3402 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3403
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3404 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3405 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3406 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3407 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3408 u_clearall(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3409 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3410 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3411 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3412 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3413 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3414 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3415 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3416
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3417 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3418 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3419 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3420 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3421 u_saveline(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3422 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3423 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3424 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	3425 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3426 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3427 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3428 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3429 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3430 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3431 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3432 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3433 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3434 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3435 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3436
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3437 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3438 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3439 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3440 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3441 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3442 u_clearline(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3443 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3444 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3445 {
13244 ac42c4b11dbc patch 8.0.1496: clearing a pointer takes two lines Christian Brabandt <cb@256bit.org> parents: 13138 diff changeset	3446 VIM_CLEAR(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3447 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3448 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3449 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3450
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3451 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3452 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3453 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3454 * 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	3455 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3456 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3457 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3458 u_undoline(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3459 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3460 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3461 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3462
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3463 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3464 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3465
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3466 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3467 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3468 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3469 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3470 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3471 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3472
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3473 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3474 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	3475 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3476 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3477 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3478 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3479 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3480 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3481 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3482 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3483 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3484 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	3485 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3486 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3487
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3488 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3489 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3490 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3491 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3492 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3493 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3494 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3495
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3496 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3497 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3498 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3499 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3500 u_blockfree(buf_T *buf)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3501 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3502 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3503 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	3504 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3505 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3506
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3507 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3508 * 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	3509 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3510 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3511 static char_u *
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3512 u_save_line(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3513 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3514 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3515 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3516
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3517 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3518 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3519 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3520 * "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	3521 * 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	3522 * job.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3523 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3524 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3525 bufIsChanged(buf_T *buf)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3526 {
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	3527 #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	3528 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	3529 return TRUE;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3530 #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	3531 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	3532 }
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
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 /*
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	3535 * 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	3536 */
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	3537 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	3538 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	3539 {
14147 de75c249723d patch 8.1.0091: MS-Windows: Cannot interrupt gdb when program is running Christian Brabandt <cb@256bit.org> parents: 13610 diff changeset	3540 // In a "prompt" buffer we do respect 'modified', so that we can control
de75c249723d patch 8.1.0091: MS-Windows: Cannot interrupt gdb when program is running Christian Brabandt <cb@256bit.org> parents: 13610 diff changeset	3541 // closing the window by setting or resetting that option.
de75c249723d patch 8.1.0091: MS-Windows: Cannot interrupt gdb when program is running Christian Brabandt <cb@256bit.org> parents: 13610 diff changeset	3542 return (!bt_dontwrite(buf) \|\| bt_prompt(buf))
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	3543 && (buf->b_changed \|\| file_ff_differs(buf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3544 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3545
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3546 int
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3547 curbufIsChanged(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3548 {
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	3549 return bufIsChanged(curbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3550 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3551
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3552 #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	3553 /*
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3554 * 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	3555 * Recursive.
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3556 */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3557 void
7835 4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7 Christian Brabandt <cb@256bit.org> parents: 7805 diff changeset	3558 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	3559 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3560 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	3561 dict_T *dict;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3562
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3563 while (uhp != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3564 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3565 dict = dict_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3566 if (dict == NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3567 return;
14301 3c80092eb211 patch 8.1.0166: using dict_add_nr_str() is clumsy Christian Brabandt <cb@256bit.org> parents: 14237 diff changeset	3568 dict_add_number(dict, "seq", uhp->uh_seq);
3c80092eb211 patch 8.1.0166: using dict_add_nr_str() is clumsy Christian Brabandt <cb@256bit.org> parents: 14237 diff changeset	3569 dict_add_number(dict, "time", (long)uhp->uh_time);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3570 if (uhp == curbuf->b_u_newhead)
14301 3c80092eb211 patch 8.1.0166: using dict_add_nr_str() is clumsy Christian Brabandt <cb@256bit.org> parents: 14237 diff changeset	3571 dict_add_number(dict, "newhead", 1);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3572 if (uhp == curbuf->b_u_curhead)
14301 3c80092eb211 patch 8.1.0166: using dict_add_nr_str() is clumsy Christian Brabandt <cb@256bit.org> parents: 14237 diff changeset	3573 dict_add_number(dict, "curhead", 1);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3574 if (uhp->uh_save_nr > 0)
14301 3c80092eb211 patch 8.1.0166: using dict_add_nr_str() is clumsy Christian Brabandt <cb@256bit.org> parents: 14237 diff changeset	3575 dict_add_number(dict, "save", uhp->uh_save_nr);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3576
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3577 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	3578 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3579 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	3580
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3581 if (alt_list != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3582 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3583 /* 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	3584 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	3585 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	3586 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3587 }
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_append_dict(list, dict);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3590 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	3591 }
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 #endif

Mercurial > vim

annotate src/undo.c @ 14327:b8f1167aa8ad v8.1.0179