vim: src/undo.c annotate

annotate src/undo.c @ 4706:bf917ee1fad2 v7.3.1100

updated for version 7.3.1100 Problem: Python: a few more memory problems. Solution: Add and remove Py_XDECREF(). (ZyX)

author	Bram Moolenaar <bram@vim.org>
date	Sun, 02 Jun 2013 18:54:21 +0200
parents	790238e5a46c
children	60301d4d1682

rev	line source
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1 /* vi:set ts=8 sts=4 sw=4:
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
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	84 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	85
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	86 static void u_unch_branch __ARGS((u_header_T *uhp));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	87 static u_entry_T *u_get_headentry __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	88 static void u_getbot __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	89 static void u_doit __ARGS((int count));
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	90 static void u_undoredo __ARGS((int undo));
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	91 static void u_undo_end __ARGS((int did_undo, int absolute));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	92 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt));
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	93 static void u_freeheader __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	94 static void u_freebranch __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	95 static void u_freeentries __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	96 static void u_freeentry __ARGS((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	97 #ifdef FEAT_PERSISTENT_UNDO
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	98 static void corruption_error __ARGS((char mesg, char_u file_name));
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	99 static void u_free_uhp __ARGS((u_header_T *uhp));
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	100 static size_t fwrite_crypt __ARGS((buf_T buf UNUSED, char_u ptr, size_t len, FILE *fp));
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	101 static char_u read_string_decrypt __ARGS((buf_T buf UNUSED, FILE *fd, int len));
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	102 static int serialize_header __ARGS((FILE fp, buf_T buf, char_u *hash));
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	103 static int serialize_uhp __ARGS((FILE fp, buf_T buf, u_header_T *uhp));
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	104 static u_header_T unserialize_uhp __ARGS((FILE fp, char_u *file_name));
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	105 static int serialize_uep __ARGS((FILE fp, buf_T buf, 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	106 static u_entry_T unserialize_uep __ARGS((FILE fp, int error, char_u file_name));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	107 static void serialize_pos __ARGS((pos_T pos, FILE *fp));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	108 static void unserialize_pos __ARGS((pos_T pos, FILE fp));
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	109 static void serialize_visualinfo __ARGS((visualinfo_T info, FILE fp));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	110 static void unserialize_visualinfo __ARGS((visualinfo_T info, FILE fp));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	111 static void put_header_ptr __ARGS((FILE fp, u_header_T uhp));
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	112 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	113
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	114 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	115 static char_u *u_save_line __ARGS((linenr_T));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	116
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	117 /* used in undo_end() to report number of added and deleted lines */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	118 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	119
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	120 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	121 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	122 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	123 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	124 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	125
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	126 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	127
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	128 #if defined(U_DEBUG) \|\| defined(PROTO)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	129 /*
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	130 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	131 * looks wrong.
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	132 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	133 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	134 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	135 static int header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	136
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	137 static void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	138 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	139 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	140 u_header_T *exp_uh_alt_prev)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	141 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	142 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	143
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	144 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	145 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	146 ++header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	147 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	148 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	149 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	150 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	151 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	152 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	153 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	154 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	155 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	156 }
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 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	159 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	160 else
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	161 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	162 /* 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	163 if (uhp->uh_next.ptr != exp_uh_next)
1415 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 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	166 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	167 exp_uh_next, uhp->uh_next.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	168 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	169 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	170 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	171 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	172 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	173 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	174 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	175
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	176 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	177 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	178 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	179 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	180 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	181 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	182 break;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	183 }
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 /* 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	187 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	188
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	189 /* 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	190 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	191 }
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
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	194 static void
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	195 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	196 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	197 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	198 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	199 header_count = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	200
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	201 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
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 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	204 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	205 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	206 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	207 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	208 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	209 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	210 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	211 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	212 (long)header_count, (long)curbuf->b_u_numhead);
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 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	215 #endif
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	216
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	217 /*
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	218 * 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	219 * Careful: may trigger autocommands that reload the buffer.
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	220 * Returns OK or FAIL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	221 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	222 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	223 u_save_cursor()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	224 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	226 (linenr_T)(curwin->w_cursor.lnum + 1)));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	227 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	228
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	229 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	230 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	231 * "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	232 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	233 * Returns FAIL when lines could not be saved, OK otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	234 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	235 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	236 u_save(top, bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	237 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	238 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	239 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	240 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	241
4303 790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	242 if (top > curbuf->b_ml.ml_line_count
790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	243 \|\| top >= bot
790238e5a46c updated for version 7.3.901 Bram Moolenaar <bram@vim.org> parents: 3751 diff changeset	244 \|\| bot > curbuf->b_ml.ml_line_count + 1)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	245 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	246
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	247 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	248 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	250 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	251 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	252
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	253 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	254 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	255 * 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	256 * 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	257 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260 u_savesub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	264 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	266 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	267 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	268
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	269 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	270 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	271 * 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	272 * 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	273 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276 u_inssub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	281
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	282 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	283 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	284
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	286 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	287 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288 * 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	289 * 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	290 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 u_savedel(lnum, nlines)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 long nlines;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	296 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	297 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	298 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	299
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	300 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	301 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	302 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	303
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	304 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	305 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	306 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	307 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	308 int
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	309 undo_allowed()
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	310 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	311 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	312 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	313 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	314 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	315 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	316 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	317
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	318 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	319 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	320 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	321 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	322 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	323 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	324 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	325 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	326
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	327 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	329 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	330 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	331 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	332 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	333 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	334
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	335 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	336 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	337
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	338 /*
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	339 * 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	340 * "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	341 * "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	342 * "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	343 * "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	344 * 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	345 * 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	346 */
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	347 int
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	348 u_savecommon(top, bot, newbot, reload)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	349 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	350 linenr_T newbot;
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	351 int reload;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	352 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	353 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	354 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	355 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	356 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	357 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	358 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	359 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	360
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	361 if (!reload)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	362 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	363 /* 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	364 * 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	365 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	366 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	367
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	368 #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	369 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	370 * 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	371 * 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	372 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	373 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	374 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	375 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	376 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	377 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	378 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	379 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	380 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	381 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	382 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	383 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	384 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	385 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	386 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	387
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	388 #ifdef FEAT_AUTOCMD
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	389 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	390 * 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	391 * 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	392 * 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	393 * (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	394 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	395 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	396 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	397 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	398 /* 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	399 * file in a way it becomes shorter. */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	400 EMSG(_("E834: Line count changed unexpectedly"));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	401 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	402 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	403 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	404 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	405
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	406 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	407 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	408 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	409
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	410 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	411
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	412 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	413 * If curbuf->b_u_synced == TRUE make a new header.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	414 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	415 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	416 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	417 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	418 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	419 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	420 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	421
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	422 if (p_ul >= 0)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	423 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	424 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	425 * 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	426 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	427 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	428 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	429 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	430 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	431 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	432 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	433 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	434 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	435 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	436 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	437
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	438 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	439 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	440 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	441 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	442 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	443 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	444 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	445 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	446 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	447 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	448
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	449 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	450 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	451 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	452 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	453 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	454 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	455
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	456 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	457 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	458 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	459 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	460 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	461 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	462 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	463 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	464 /* 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	465 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	466 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	467 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	468 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	469 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	470 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	471 #endif
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
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	474 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	475 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	476 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	477 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	478 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	479 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	480 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	481
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	482 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	483 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	484 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	485 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	486 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	487 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	488 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	489 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	490 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	491 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	492 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	493 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	494 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	495 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	496 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	497 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	498
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	499 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	500 curbuf->b_u_seq_cur = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	501 uhp->uh_time = time(NULL);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	502 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	503 curbuf->b_u_time_cur = uhp->uh_time + 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	504
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	505 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	506 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	507 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	508 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	509 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	510 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	511 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	512 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	513 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	514 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	516 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	517 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	518 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	519
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	520 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	521 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	522 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	523 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	524 #endif
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	525
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	526 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	527 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	528 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	529 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	530 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	531 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	532 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	533 if (p_ul < 0) /* no undo at all */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	534 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	535
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	536 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	537 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	538 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	539 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	540 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	541 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	542 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	543 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	544 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	545 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	556 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	558 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	559 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	560 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	562 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	563 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	567 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	571 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	593 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	595 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	596 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	598 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	599 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 * With Amiga and MSDOS 16 bit we can't handle big undo's, because
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	619 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	620 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	622 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 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	625 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	626 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	627 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	628 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	629
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	630 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	631 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	632 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	644 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	646 if (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	647 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	648 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	649 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	650 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	654 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	655 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	656 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	657 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	658 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	659 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	660 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	661 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	664 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	665 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	666 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	667 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	668 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	669 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	670 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	671 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	672 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	673 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	674 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	675
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	676 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	677 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	678 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	679 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	680
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	681 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	682 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	683 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	684 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	685 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	686 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	687 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	688 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	689 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	690 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	691 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	692
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	693 #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	694
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	695 # 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	696 # 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	697 # 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	698 # 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	699 # 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	700 # 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	701 # 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	702 # 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	703
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	704 /* extra fields for header */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	705 # 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	706
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	707 /* extra fields for uhp */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	708 # 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	709
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	710 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	711
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	712 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	713 * 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	714 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	715 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	716 u_compute_hash(hash)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	717 char_u *hash;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	718 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	719 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	720 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	721 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	722
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	723 sha256_start(&ctx);
3194 972bd3fca556 updated for version 7.3.367 Bram Moolenaar <bram@vim.org> parents: 2689 diff changeset	724 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	725 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	726 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	727 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	728 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	729 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	730 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	731
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	732 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	733 * 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	734 * 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	735 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	736 * 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	737 * 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	738 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	739 char_u *
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	740 u_get_undo_file_name(buf_ffname, reading)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	741 char_u *buf_ffname;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	742 int reading;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	743 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	744 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	745 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	746 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	747 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	748 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	749 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	750 struct stat st;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	751 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	752 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	753 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	754 #endif
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 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	757 return NULL;
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 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	760 /* 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	761 * 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	762 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	763 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	764 #endif
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 /* 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	767 * 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	768 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	769 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	770 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	771 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	772 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	773 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	774 /* 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	775 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	776 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	777 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	778 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	779 p = gettail(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	780 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	781 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	782 STRCAT(p, ".un~");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	783 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	784 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	785 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	786 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	787 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	788 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	789 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	790 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	791 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	792 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	793 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	794 for (p = munged_name; *p != NUL; mb_ptr_adv(p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	795 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	796 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	797 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	798 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	799 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	800 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	801
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	802 /* 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	803 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	804 \|\| 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	805 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	806 vim_free(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	807 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	808 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	809
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	810 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	811 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	812 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	813
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	814 static void
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	815 corruption_error(mesg, file_name)
2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	816 char *mesg;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	817 char_u *file_name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	818 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	819 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	820 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	821
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	822 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	823 u_free_uhp(uhp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	824 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	825 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	826 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	827 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	828
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	829 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	830 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	831 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	832 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	833 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	834 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	835 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	836 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	837 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	838
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	839 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	840 * Like fwrite() but crypt the bytes when 'key' is set.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	841 * Returns 1 if successful.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	842 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	843 static size_t
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	844 fwrite_crypt(buf, ptr, len, fp)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	845 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	846 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	847 size_t len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	848 FILE *fp;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	849 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	850 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	851 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	852 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	853 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	854
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	855 if (*buf->b_p_key == NUL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	856 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	857 if (len < 100)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	858 copy = small_buf; /* no malloc()/free() for short strings */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	859 else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	860 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	861 copy = lalloc(len, FALSE);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	862 if (copy == NULL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	863 return 0;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	864 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	865 crypt_encode(ptr, len, copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	866 i = fwrite(copy, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	867 if (copy != small_buf)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	868 vim_free(copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	869 return i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	870 #else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	871 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	872 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	873 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	874
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	875 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	876 * Read a string of length "len" from "fd".
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	877 * When 'key' is set decrypt the bytes.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	878 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	879 static char_u *
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	880 read_string_decrypt(buf, fd, len)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	881 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	882 FILE *fd;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	883 int len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	884 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	885 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	886
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	887 ptr = read_string(fd, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	888 #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	889 if (ptr != NULL && *buf->b_p_key != NUL)
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	890 crypt_decode(ptr, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	891 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	892 return ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	893 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	894
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	895 static int
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	896 serialize_header(fp, buf, hash)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	897 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	898 buf_T *buf;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	899 char_u *hash;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	900 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	901 int len;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	902
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	903 /* 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	904 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	905 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	906
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	907 /* 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	908 * 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	909 #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	910 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	911 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	912 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	913 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	914
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	915 put_bytes(fp, (long_u)UF_VERSION_CRYPT, 2);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	916 header = prepare_crypt_write(buf, &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	917 if (header == NULL)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	918 return FAIL;
2245 4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more. Bram Moolenaar <bram@vim.org> parents: 2242 diff changeset	919 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	920 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	921 if (len != 1)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	922 {
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	923 crypt_pop_state();
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	924 return FAIL;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	925 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	926 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	927 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	928 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	929 put_bytes(fp, (long_u)UF_VERSION, 2);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	930
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	931
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	932 /* 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	933 * same when reading the buffer text. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	934 if (fwrite(hash, (size_t)UNDO_HASH_SIZE, (size_t)1, fp) != 1)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	935 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	936
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	937 /* buffer-specific data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	938 put_bytes(fp, (long_u)buf->b_ml.ml_line_count, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	939 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	940 put_bytes(fp, (long_u)len, 4);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	941 if (len > 0 && fwrite_crypt(buf, buf->b_u_line_ptr, (size_t)len, fp) != 1)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	942 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	943 put_bytes(fp, (long_u)buf->b_u_line_lnum, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	944 put_bytes(fp, (long_u)buf->b_u_line_colnr, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	945
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	946 /* Undo structures header data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	947 put_header_ptr(fp, buf->b_u_oldhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	948 put_header_ptr(fp, buf->b_u_newhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	949 put_header_ptr(fp, buf->b_u_curhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	950
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	951 put_bytes(fp, (long_u)buf->b_u_numhead, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	952 put_bytes(fp, (long_u)buf->b_u_seq_last, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	953 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	954 put_time(fp, buf->b_u_time_cur);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	955
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	956 /* Optional fields. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	957 putc(4, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	958 putc(UF_LAST_SAVE_NR, fp);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	959 put_bytes(fp, (long_u)buf->b_u_save_nr_last, 4);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	960
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	961 putc(0, fp); /* end marker */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	962
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	963 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	964 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	965
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	966 static int
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	967 serialize_uhp(fp, buf, uhp)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	968 FILE *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	969 buf_T *buf;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	970 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	971 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	972 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	973 u_entry_T *uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	974
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	975 if (put_bytes(fp, (long_u)UF_HEADER_MAGIC, 2) == FAIL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	976 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	977
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	978 put_header_ptr(fp, uhp->uh_next.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	979 put_header_ptr(fp, uhp->uh_prev.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	980 put_header_ptr(fp, uhp->uh_alt_next.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	981 put_header_ptr(fp, uhp->uh_alt_prev.ptr);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	982 put_bytes(fp, uhp->uh_seq, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	983 serialize_pos(uhp->uh_cursor, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	984 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	985 put_bytes(fp, (long_u)uhp->uh_cursor_vcol, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	986 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	987 put_bytes(fp, (long_u)0, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	988 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	989 put_bytes(fp, (long_u)uhp->uh_flags, 2);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	990 /* 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	991 for (i = 0; i < NMARKS; ++i)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	992 serialize_pos(uhp->uh_namedm[i], fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	993 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	994 serialize_visualinfo(&uhp->uh_visual, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	995 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	996 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	997 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	998
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	999 memset(&info, 0, sizeof(visualinfo_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1000 serialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1001 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1002 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1003 put_time(fp, uhp->uh_time);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1004
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1005 /* Optional fields. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1006 putc(4, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1007 putc(UHP_SAVE_NR, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1008 put_bytes(fp, (long_u)uhp->uh_save_nr, 4);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1009
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1010 putc(0, fp); /* end marker */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1011
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1012 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1013 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	1014 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1015 put_bytes(fp, (long_u)UF_ENTRY_MAGIC, 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	1016 if (serialize_uep(fp, buf, uep) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1017 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1018 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1019 put_bytes(fp, (long_u)UF_ENTRY_END_MAGIC, 2);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1020 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1021 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1022
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1023 static u_header_T *
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1024 unserialize_uhp(fp, file_name)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1025 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1026 char_u *file_name;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1027 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1028 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1029 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1030 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	1031 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1032 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1033
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1034 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	1035 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1036 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1037 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	1038 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1039 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1040 #endif
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1041 uhp->uh_next.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1042 uhp->uh_prev.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1043 uhp->uh_alt_next.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1044 uhp->uh_alt_prev.seq = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1045 uhp->uh_seq = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1046 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1047 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1048 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	1049 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1050 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1051 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1052 unserialize_pos(&uhp->uh_cursor, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1053 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1054 uhp->uh_cursor_vcol = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1055 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1056 (void)get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1057 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1058 uhp->uh_flags = get2c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1059 for (i = 0; i < NMARKS; ++i)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1060 unserialize_pos(&uhp->uh_namedm[i], fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1061 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1062 unserialize_visualinfo(&uhp->uh_visual, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1063 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1064 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1065 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1066 unserialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1067 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1068 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1069 uhp->uh_time = get8ctime(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1070
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1071 /* Optional fields. */
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1072 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1073 {
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1074 int len = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1075 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1076
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1077 if (len == 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1078 break;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1079 what = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1080 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1081 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1082 case UHP_SAVE_NR:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1083 uhp->uh_save_nr = get4c(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1084 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1085 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1086 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1087 while (--len >= 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1088 (void)getc(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1089 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1090 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1091
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1092 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1093 last_uep = NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1094 while ((c = get2c(fp)) == UF_ENTRY_MAGIC)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1095 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1096 error = FALSE;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1097 uep = unserialize_uep(fp, &error, file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1098 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1099 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1100 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1101 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1102 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1103 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1104 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1105 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1106 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1107 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1108 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1109 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	1110 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1111 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	1112 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1113 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1114 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1115
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1116 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1117 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1118
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1119 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1120 * Serialize "uep" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1121 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1122 static int
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1123 serialize_uep(fp, buf, uep)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1124 FILE *fp;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1125 buf_T *buf;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1126 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	1127 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1128 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1129 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1130
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1131 put_bytes(fp, (long_u)uep->ue_top, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1132 put_bytes(fp, (long_u)uep->ue_bot, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1133 put_bytes(fp, (long_u)uep->ue_lcount, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1134 put_bytes(fp, (long_u)uep->ue_size, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1135 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	1136 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1137 len = STRLEN(uep->ue_array[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1138 if (put_bytes(fp, (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	1139 return FAIL;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1140 if (len > 0 && fwrite_crypt(buf, uep->ue_array[i], len, fp) != 1)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1141 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1142 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1143 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1144 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1145
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1146 static u_entry_T *
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1147 unserialize_uep(fp, error, file_name)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1148 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1149 int *error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1150 char_u *file_name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1151 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1152 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1153 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	1154 char_u **array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1155 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1156 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1157
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1158 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	1159 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1160 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1161 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	1162 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1163 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	1164 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1165 uep->ue_top = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1166 uep->ue_bot = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1167 uep->ue_lcount = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1168 uep->ue_size = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1169 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	1170 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1171 array = (char_u *)U_ALLOC_LINE(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	1172 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1173 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1174 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1175 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1176 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1177 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	1178 }
2232 2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't Bram Moolenaar <bram@vim.org> parents: 2231 diff changeset	1179 else
2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't Bram Moolenaar <bram@vim.org> parents: 2231 diff changeset	1180 array = NULL;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1181 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	1182
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1183 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	1184 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1185 line_len = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1186 if (line_len >= 0)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1187 line = read_string_decrypt(curbuf, fp, line_len);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1188 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1189 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1190 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1191 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	1192 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1193 if (line == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1194 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1195 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1196 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1197 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1198 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1199 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1200 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1201 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1202
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1203 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1204 * Serialize "pos" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1205 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1206 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1207 serialize_pos(pos, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1208 pos_T pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1209 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1210 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1211 put_bytes(fp, (long_u)pos.lnum, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1212 put_bytes(fp, (long_u)pos.col, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1213 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1214 put_bytes(fp, (long_u)pos.coladd, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1215 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1216 put_bytes(fp, (long_u)0, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1217 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1218 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1219
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1220 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1221 * Unserialize the pos_T at the current position in fp.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1222 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1223 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1224 unserialize_pos(pos, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1225 pos_T *pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1226 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1227 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1228 pos->lnum = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1229 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1230 pos->lnum = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1231 pos->col = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1232 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1233 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	1234 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1235 pos->coladd = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1236 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1237 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	1238 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1239 (void)get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1240 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1241 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1242
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1243 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1244 * Serialize "info" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1245 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1246 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1247 serialize_visualinfo(info, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1248 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1249 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1250 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1251 serialize_pos(info->vi_start, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1252 serialize_pos(info->vi_end, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1253 put_bytes(fp, (long_u)info->vi_mode, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1254 put_bytes(fp, (long_u)info->vi_curswant, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1255 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1256
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1257 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1258 * Unserialize the visualinfo_T at the current position in fp.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1259 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1260 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1261 unserialize_visualinfo(info, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1262 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1263 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1264 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1265 unserialize_pos(&info->vi_start, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1266 unserialize_pos(&info->vi_end, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1267 info->vi_mode = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1268 info->vi_curswant = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1269 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1270
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1271 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1272 * Write the pointer to an undo header. Instead of writing the pointer itself
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1273 * we use the sequence number of the header. This is converted back to
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1274 * pointers when reading. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1275 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1276 put_header_ptr(fp, uhp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1277 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1278 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	1279 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1280 put_bytes(fp, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1281 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1282
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1283 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1284 * 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	1285 * 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	1286 * 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	1287 * "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	1288 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1289 * "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	1290 * "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	1291 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1292 void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1293 u_write_undo(name, forceit, buf, hash)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1294 char_u *name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1295 int forceit;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1296 buf_T *buf;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1297 char_u *hash;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1298 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1299 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	1300 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1301 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1302 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1303 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	1304 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1305 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1306 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1307 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1308 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	1309 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1310 int st_old_valid = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1311 struct stat st_old;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1312 struct stat st_new;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1313 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1314 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1315 int do_crypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1316 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1317
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1318 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1319 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1320 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	1321 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	1322 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1323 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	1324 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1325 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1326 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	1327 _("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	1328 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1329 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1330 return;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1331 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1332 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1333 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1334 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	1335
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1336 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1337 * 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	1338 * 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	1339 * 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	1340 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1341 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1342 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	1343 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1344 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1345 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	1346 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1347 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	1348 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	1349 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1350 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1351 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	1352 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1353 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1354 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1355 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1356
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1357 /* strip any s-bit */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1358 perm = perm & 0777;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1359
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1360 /* 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	1361 * 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	1362 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	1363 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1364 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	1365 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1366 /* 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	1367 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	1368 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1369 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1370 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	1371 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1372 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	1373 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1374 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	1375 _("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	1376 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	1377 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	1378 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1379 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1380 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1381 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1382 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1383 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1384 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	1385 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1386
2664 033e7b49356c updated for version 7.3.083 Bram Moolenaar <bram@vim.org> parents: 2627 diff changeset	1387 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	1388 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1389 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	1390 \|\| 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	1391 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1392 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	1393 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1394 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	1395 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1396 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1397 _("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	1398 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	1399 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	1400 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1401 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1402 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1403 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1404 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1405 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1406 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	1407 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1408
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1409 /* 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	1410 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1411 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	1412 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1413 if (p_verbose > 0)
2262 771f21e35ec5 Minor typo and docs update. Bram Moolenaar <bram@vim.org> parents: 2251 diff changeset	1414 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	1415 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1416 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1417
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1418 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	1419 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	1420 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1421 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1422 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	1423 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1424 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1425 (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	1426 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	1427 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1428 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1429 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	1430 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1431 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1432
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1433 #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	1434 /* 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	1435 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1436 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1437
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1438 #ifdef UNIX
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 * 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	1441 * 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	1442 * 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	1443 */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1444 if (st_old_valid
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1445 && 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	1446 && 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	1447 # 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	1448 && 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	1449 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1450 )
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1451 mch_setperm(file_name, (perm & 0707) \| ((perm & 07) << 3));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1452 # ifdef HAVE_SELINUX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1453 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	1454 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	1455 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1456 #endif
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 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	1459 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1460 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1461 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	1462 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1463 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	1464 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1465 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1466
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1467 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1468 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1469
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1470 /*
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1471 * Write the header.
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1472 */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1473 if (serialize_header(fp, buf, hash) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1474 goto write_error;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1475 #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	1476 if (*buf->b_p_key != NUL)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1477 do_crypt = TRUE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1478 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1479
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1480 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1481 * 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	1482 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1483 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1484 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	1485 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1486 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1487 /* 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	1488 if (uhp->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1489 {
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1490 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	1491 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1492 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1493 #endif
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1494 if (serialize_uhp(fp, buf, uhp) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1495 goto write_error;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1496 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1497
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1498 /* 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	1499 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	1500 uhp = uhp->uh_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1501 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	1502 && 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	1503 uhp = uhp->uh_alt_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1504 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	1505 && uhp->uh_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1506 uhp = uhp->uh_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1507 else if (uhp->uh_alt_prev.ptr != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1508 uhp = uhp->uh_alt_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1509 else
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1510 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	1511 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1512
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1513 if (put_bytes(fp, (long_u)UF_HEADER_END_MAGIC, 2) == OK)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1514 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1515 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1516 if (headers_written != buf->b_u_numhead)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1517 EMSG3("Written %ld headers, but numhead is %ld",
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1518 headers_written, buf->b_u_numhead);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1519 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1520
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1521 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1522 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1523 if (!write_ok)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1524 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	1525
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1526 #if defined(MACOS_CLASSIC) \|\| defined(WIN3264)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1527 /* 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	1528 * 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	1529 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	1530 (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	1531 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1532 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1533 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	1534 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1535 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	1536
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1537 /* 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	1538 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	1539 mch_set_acl(file_name, acl);
3545 74d51b51f3e6 updated for version 7.3.533 Bram Moolenaar <bram@vim.org> parents: 3194 diff changeset	1540 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	1541 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1542 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1543
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1544 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1545 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1546 if (do_crypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1547 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1548 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1549 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	1550 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	1551 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1552
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1553 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1554 * 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	1555 * 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	1556 * 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	1557 * 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	1558 * "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	1559 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1560 void
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1561 u_read_undo(name, hash, orig_name)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1562 char_u *name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1563 char_u *hash;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1564 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	1565 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1566 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	1567 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1568 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	1569 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	1570 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	1571 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	1572 linenr_T line_count;
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	1573 int 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	1574 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	1575 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	1576 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	1577 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	1578 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	1579 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	1580 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1581 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1582 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	1583 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	1584 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	1585 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	1586 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1587 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	1588 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1589 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1590 struct stat st_orig;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1591 struct stat st_undo;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1592 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1593 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1594 int do_decrypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1595 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1596
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1597 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1598 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1599 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	1600 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	1601 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1602
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1603 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1604 /* For safety we only read an undo file if the owner is equal to the
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1605 * owner of the text file. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1606 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	1607 && mch_stat((char *)file_name, &st_undo) >= 0
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1608 && st_orig.st_uid != st_undo.st_uid)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1609 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1610 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1611 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1612 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1613 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	1614 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1615 verbose_leave();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1616 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1617 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1618 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1619 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1620 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1621 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1622 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	1623
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1624 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	1625 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1626 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1627 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	1628 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1629 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1630
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1631 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	1632 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1633 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1634 if (name != NULL \|\| p_verbose > 0)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1635 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	1636 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1637 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1638
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1639 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1640 * 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	1641 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1642 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	1643 \|\| 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	1644 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1645 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	1646 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1647 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1648 version = get2c(fp);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1649 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	1650 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1651 #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	1652 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	1653 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1654 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	1655 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1656 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1657 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1658 if (prepare_crypt_read(fp) == FAIL)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1659 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1660 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	1661 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	1662 }
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1663 do_decrypt = TRUE;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1664 #else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1665 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	1666 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	1667 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1668 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1669 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	1670 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1671 EMSG2(_("E824: Incompatible undo file: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1672 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1673 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1674
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1675 if (fread(read_hash, UNDO_HASH_SIZE, 1, fp) != 1)
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1676 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1677 corruption_error("hash", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1678 goto error;
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1679 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1680 line_count = (linenr_T)get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1681 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	1682 \|\| 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	1683 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1684 if (p_verbose > 0 \|\| name != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1685 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1686 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	1687 verbose_enter();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1688 give_warning((char_u *)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1689 _("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	1690 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	1691 verbose_leave();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1692 }
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1693 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1694 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1695
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1696 /* Read undo data for "U" command. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1697 str_len = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1698 if (str_len < 0)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1699 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1700 if (str_len > 0)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1701 line_ptr = read_string_decrypt(curbuf, fp, str_len);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1702 line_lnum = (linenr_T)get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1703 line_colnr = (colnr_T)get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1704 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	1705 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1706 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	1707 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1708 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1709
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1710 /* Begin general undo data */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1711 old_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1712 new_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1713 cur_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1714 num_head = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1715 seq_last = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1716 seq_cur = get4c(fp);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1717 seq_time = get8ctime(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1718
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1719 /* Optional header fields. */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1720 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1721 {
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1722 int len = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1723 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1724
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1725 if (len == 0 \|\| len == EOF)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1726 break;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1727 what = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1728 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1729 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1730 case UF_LAST_SAVE_NR:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1731 last_save_nr = get4c(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1732 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1733 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1734 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1735 while (--len >= 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1736 (void)getc(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1737 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1738 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1739
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1740 /* 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	1741 * 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	1742 * 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	1743 * 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	1744 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1745 {
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1746 uhp_table = (u_header_T **)U_ALLOC_LINE(
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1747 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	1748 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1749 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1750 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1751
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1752 while ((c = get2c(fp)) == 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	1753 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1754 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1755 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1756 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	1757 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1758 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1759
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1760 uhp = unserialize_uhp(fp, file_name);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1761 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1762 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1763 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1764 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1765
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1766 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1767 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1768 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1769 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1770 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1771 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	1772 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1773 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	1774 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1775 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1776
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1777 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1778 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	1779 (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	1780 # 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	1781 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1782 # 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	1783 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1784
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1785 /* 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	1786 * 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	1787 * 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	1788 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	1789 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1790 uhp = uhp_table[i];
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1791 if (uhp == NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1792 continue;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1793 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1794 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	1795 && 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	1796 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1797 corruption_error("duplicate uh_seq", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1798 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1799 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1800 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1801 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	1802 && 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	1803 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1804 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	1805 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1806 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1807 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1808 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1809 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	1810 && 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	1811 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1812 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	1813 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1814 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1815 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1816 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1817 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	1818 && 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	1819 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1820 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	1821 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1822 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1823 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1824 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1825 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	1826 && 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	1827 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1828 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	1829 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1830 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1831 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1832 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	1833 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1834 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	1835 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1836 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1837 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	1838 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1839 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	1840 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1841 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1842 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	1843 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1844 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	1845 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1846 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1847 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1848
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1849 /* 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	1850 * 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	1851 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	1852 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	1853 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	1854 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	1855 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	1856 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	1857 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	1858 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	1859 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	1860 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	1861 curbuf->b_u_time_cur = seq_time;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	1862 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	1863 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	1864
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1865 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	1866 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	1867
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1868 #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	1869 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	1870 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	1871 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	1872 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	1873 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1874 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1875
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1876 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1877 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	1878 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1879
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1880 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1881 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	1882 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	1883 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1884 for (i = 0; i < num_read_uhps; i++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1885 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1886 u_free_uhp(uhp_table[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1887 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	1888 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1889
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1890 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1891 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1892 if (do_decrypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1893 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1894 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1895 if (fp != NULL)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1896 fclose(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1897 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	1898 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	1899 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1900 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1901
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1902 #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	1903
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1904
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1905 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1906 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1907 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1908 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1909 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1910 u_undo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1911 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1912 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1913 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1914 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1915 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1916 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1917 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1918 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1919 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1920 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1921 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1922 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1923
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1924 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1925 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1926 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1927 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1928 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1929 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1930
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1931 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1932 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1933 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1934 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1935 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1936 u_redo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1937 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1938 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1939 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1940 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1941 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1942 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1943
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1944 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1945 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1946 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1947 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1948 u_doit(startcount)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1949 int startcount;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1950 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1951 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1952
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	1953 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1954 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1955
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1956 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1957 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1958 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1959 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1960 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1961 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1962 /* 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	1963 * 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	1964 * 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	1965 * and more. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1966 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1967
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1968 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1969 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1970 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1971 curbuf->b_u_curhead = curbuf->b_u_newhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1972 else if (p_ul > 0) /* multi level undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1973 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1974 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1975 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1976 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1977 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1978 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1979 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1980 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1981 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1982 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1983 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1984 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1985 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1986 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1987 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1988
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1989 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1990 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1991 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1992 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1993 if (curbuf->b_u_curhead == NULL \|\| p_ul <= 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1994 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1995 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1996 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1997 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1998 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1999 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2000 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2001 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2002 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2003
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2004 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2005
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2006 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2007 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2008 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2009 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	2010 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2011 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2012 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2013 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2014 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2015
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2016 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2017 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2018 * 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	2019 * 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	2020 * seconds.
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2021 * When "file" is TRUE use "step" as a number of file writes.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2022 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2023 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2024 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2025 void
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2026 undo_time(step, sec, file, absolute)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2027 long step;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2028 int sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2029 int file;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2030 int absolute;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2031 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2032 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2033 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2034 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2035 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2036 long val;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2037 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2038 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2039 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2040 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2041 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2042 int dosec = sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2043 int dofile = file;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2044 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2045 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2046
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2047 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2048 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2049 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2050
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2051 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2052 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2053 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2054 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2055
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2056 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2057 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2058 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2059 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2060 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2061 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2062 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2063 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2064 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2065 /* When doing computations with time_t subtract starttime, because
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2066 * time_t converted to a long may result in a wrong number. */
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2067 if (dosec)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2068 target = (long)(curbuf->b_u_time_cur - starttime) + step;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2069 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2070 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2071 if (step < 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2072 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2073 /* 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	2074 * 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	2075 * 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	2076 uhp = curbuf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2077 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2078 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2079 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2080 uhp = curbuf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2081 if (uhp != NULL && uhp->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2082 /* "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	2083 * there were no changes since the last write */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2084 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2085 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2086 /* 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	2087 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	2088 if (target <= 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2089 /* 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	2090 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2091 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2092 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2093 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2094 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2095 /* Moving forward to a newer write. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2096 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2097 if (target > curbuf->b_u_save_nr_last)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2098 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2099 /* 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	2100 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2101 target = curbuf->b_u_seq_last + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2102 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2103 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2104 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2105 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2106 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2107 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2108 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2109 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2110 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2111 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2112 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2113 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2114 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2115 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2116 if (dosec)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2117 closest = (long)(time(NULL) - starttime + 1);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2118 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2119 closest = curbuf->b_u_save_nr_last + 2;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2120 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2121 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2122 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2123 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2124 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2125 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2126 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2127 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2128
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2129 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2130 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2131 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2132 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2133 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2134 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2135 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2136 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2137 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2138 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2139 /* 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	2140 * 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	2141 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2142 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2143 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2144 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2145
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2146 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2147 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2148 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2149 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2150
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2151 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2152 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2153 uhp->uh_walk = mark;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2154 if (dosec)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2155 val = (long)(uhp->uh_time - starttime);
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2156 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2157 val = uhp->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2158 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2159 val = uhp->uh_seq;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2160
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2161 if (round == 1 && !(dofile && val == 0))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2162 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2163 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2164 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2165 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2166 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2167 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2168 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2169 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2170 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2171 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2172 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2173 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2174 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2175 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2176 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2177 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2178 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2179 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2180 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2181 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2182 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2183 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2184 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2185 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2186
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2187 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2188 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2189 if (target == val && !dosec)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2190 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2191 target = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2192 break;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2193 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2194
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2195 /* 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	2196 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	2197 && 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	2198 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2199
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2200 /* 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	2201 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	2202 && 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	2203 && 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	2204 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2205
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2206 /* 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	2207 * 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	2208 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	2209 && 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	2210 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2211 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2212 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2213 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2214 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	2215 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2216 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2217
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2218 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2219 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2220 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2221 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	2222 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	2223 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2224 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2225 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2226 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2227 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2228
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2229 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2230 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2231
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2232 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2233 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2234 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2235 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2236 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2237
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2238 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2239 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2240 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2241 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2242 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2243 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2244 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2245 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2246
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2247 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2248 dosec = FALSE;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2249 dofile = FALSE;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2250 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2251 above = TRUE; /* stop above the header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2252 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2253
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2254 /* If we found it: Follow the path to go to where we want to be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2255 if (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2256 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2257 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2258 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2259 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2260 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2261 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2262 /* 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	2263 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2264
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2265 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2266 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2267 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2268 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2269 uhp = uhp->uh_next.ptr;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2270 if (uhp == NULL \|\| uhp->uh_walk != mark
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2271 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2272 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2273 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2274 u_undoredo(TRUE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2275 uhp->uh_walk = nomark; /* don't go back down here */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2276 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2277
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2278 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2279 * And now go down the tree (redo), branching off where needed.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2280 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2281 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2282 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2283 /* 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	2284 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2285
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2286 uhp = curbuf->b_u_curhead;
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2287 if (uhp == NULL)
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2288 break;
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2289
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2290 /* Go back to the first branch with a mark. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2291 while (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	2292 && uhp->uh_alt_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	2293 uhp = uhp->uh_alt_prev.ptr;
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2294
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2295 /* Find the last branch with a mark, that's the one. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2296 last = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2297 while (last->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	2298 && last->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	2299 last = last->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2300 if (last != uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2301 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2302 /* Make the used branch the first entry in the list of
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2303 * alternatives to make "u" and CTRL-R take this branch. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2304 while (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	2305 uhp = uhp->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2306 if (last->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	2307 last->uh_alt_next.ptr->uh_alt_prev.ptr =
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2308 last->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2309 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2310 last->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	2311 last->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	2312 uhp->uh_alt_prev.ptr = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2313
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2314 if (curbuf->b_u_oldhead == uhp)
f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2315 curbuf->b_u_oldhead = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2316 uhp = last;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2317 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	2318 uhp->uh_next.ptr->uh_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2319 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2320 curbuf->b_u_curhead = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2321
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2322 if (uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2323 break; /* must have reached the target */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2324
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2325 /* Stop when going backwards in time and didn't find the exact
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2326 * header we were looking for. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2327 if (uhp->uh_seq == target && above)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2328 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2329 curbuf->b_u_seq_cur = target - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2330 break;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2331 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2332
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2333 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2334
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2335 /* Advance "curhead" to below the header we last used. If it
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2336 * becomes NULL then we need to set "newhead" to this leaf. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2337 if (uhp->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2338 curbuf->b_u_newhead = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2339 curbuf->b_u_curhead = uhp->uh_prev.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2340 did_undo = FALSE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2341
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2342 if (uhp->uh_seq == target) /* found it! */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2343 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2344
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2345 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2346 if (uhp == NULL \|\| uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2347 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2348 /* Need to redo more but can't find it... */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2349 EMSG2(_(e_intern2), "undo_time()");
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2350 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2351 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2352 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2353 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2354 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2355 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2356
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2357 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2358 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2359 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2360 * 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	2361 * 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	2362 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2363 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2364 * 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	2365 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2366 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2367 u_undoredo(undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2368 int undo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2369 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2370 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2371 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2372 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2373 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2374 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2375 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2376 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2377 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2378 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2379 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2380 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2381 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2382 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2383 visualinfo_T visualinfo;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2384 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2385 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2386 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2387
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2388 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2389 /* 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	2390 * invalid till the end. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2391 block_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2392 #endif
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2393
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2394 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2395 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2396 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2397 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2398 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2399 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2400 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2401
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2402 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2403 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2404 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2405 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2406 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2407 visualinfo = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2408 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2409 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2410 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2411 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2412 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2413
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2414 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2415 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2416 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2417 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2418 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2419 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2420 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2421 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2422 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2423 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2424 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2425 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2426 EMSG(_("E438: u_undo: line numbers wrong"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2427 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2428 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2429 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2430
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2431 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2432 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2433
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2434 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2435 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2436 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2437 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2438 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2439 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2440 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2441 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2442 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2443 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2444 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2445 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2446 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2447 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2448 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2449 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2450 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2451 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2452 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2453 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2454 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2455 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2456 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2457 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2458 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2459 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2460 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2461 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2462 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2463 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2464 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2465
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2466 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2467
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2468 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2469 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2470 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2471 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	2472 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2473 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2474 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2475 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2476 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2477 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2478 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2479 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2480 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2481 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2482 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2483 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2484 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2485 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2486 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2487 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2488 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2489 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2490 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2491 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2492 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2493 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2494 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2495 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2496 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2497 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2498 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2499 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2500 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2501 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2502
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2503 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2504 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2505 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2506 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2507 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2508 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2509 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2510 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2511 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2512 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2513 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2514 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2515 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	2516 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2517 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2518 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2519 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2520
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2521 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2522 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2523 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2524 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2525 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2526 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2527 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2528 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2529 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2530 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2531
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2532 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2533
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2534 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2535 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2536 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2537 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2538 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2539 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2540 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2541
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2542 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2543 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2544 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2545 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2546 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2547
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2548 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2549 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2550 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2551 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2552 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2553 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2554 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2555
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2556 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2557 curhead->uh_flags = new_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2558 if ((old_flags & UH_EMPTYBUF) && bufempty())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2559 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2560 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2561 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2562 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2563 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2564 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2565 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2566 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2567 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2568
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2569 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2570 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2571 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2572 for (i = 0; i < NMARKS; ++i)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2573 if (curhead->uh_namedm[i].lnum != 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2574 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2575 curbuf->b_namedm[i] = curhead->uh_namedm[i];
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2576 curhead->uh_namedm[i] = namedm[i];
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2577 }
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2578 #ifdef FEAT_VISUAL
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2579 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2580 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2581 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2582 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2583 }
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2584 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2585
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2586 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2587 * 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	2588 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2589 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2590 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2591 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2592 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2593 --curwin->w_cursor.lnum;
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2594 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2595 {
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2596 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	2597 {
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2598 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2599 #ifdef FEAT_VIRTUALEDIT
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2600 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	2601 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	2602 else
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2603 curwin->w_cursor.coladd = 0;
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2604 #endif
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2605 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2606 else
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2607 beginline(BL_SOL \| BL_FIX);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2608 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2609 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2610 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2611 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2612 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2613 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2614 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2615 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2616 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2617 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2618 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2619 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2620
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2621 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2622 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2623
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2624 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2625 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2626 if (undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2627 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2628 * work we compute this as being just above the just undone change. */
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2629 --curbuf->b_u_seq_cur;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2630
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2631 /* 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	2632 if (curhead->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2633 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2634 if (undo)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2635 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	2636 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2637 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	2638 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2639
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2640 /* 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	2641 * 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	2642 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	2643
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2644 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2645 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2646 #endif
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2647 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2648 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2649 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2650 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2651
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2652 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2653 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2654 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2655 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2656 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2657 static void
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2658 u_undo_end(did_undo, absolute)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2659 int did_undo; /* just did an undo */
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2660 int absolute; /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2661 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2662 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2663 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2664 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2665
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2666 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2667 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2668 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2669 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2670
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2671 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2672 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2673 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2674
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2675 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2676 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2677
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2678 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2679 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2680 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2681 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2682 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2683 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2684 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2685 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2686 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2687 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2688 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2689 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2690 if (u_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2691 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2692 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2693 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2694 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2695
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2696 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2697 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2698 /* 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	2699 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2700 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2701 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2702 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2703 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2704 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2705 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2706 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2707 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2708 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2709 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2710 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2711
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2712 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2713 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2714 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2715 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2716
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2717 #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	2718 {
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2719 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	2720
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2721 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	2722 {
2378 85b7dc8da5eb Add the 'concealcursor' option to decide when the cursor line is to be Bram Moolenaar <bram@vim.org> parents: 2367 diff changeset	2723 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	2724 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	2725 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2726 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2727 #endif
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2728
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2729 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2730 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2731 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2732 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2733 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2734 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2735 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2736
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2737 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2738 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2739 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2740 void
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2741 u_sync(force)
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2742 int force; /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2743 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2744 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2745 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2746 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2747 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2748 if (im_is_preediting())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2749 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2750 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2751 if (p_ul < 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2752 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2753 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2754 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2755 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2756 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2757 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2758 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2759
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2760 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2761 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2762 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2763 void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2764 ex_undolist(eap)
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2765 exarg_T *eap UNUSED;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2766 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2767 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2768 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2769 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2770 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2771 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2772 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2773
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2774 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2775 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2776 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2777 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2778 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2779 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2780 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2781 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2782
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2783 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2784 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2785 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2786 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2787 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2788 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2789 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2790 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2791 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2792 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2793 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2794 uhp->uh_time);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2795 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	2796 {
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2797 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	2798 STRCAT(IObuff, " ");
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2799 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	2800 " %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	2801 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2802 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2803 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2804
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2805 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2806
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2807 /* 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	2808 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	2809 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2810 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2811 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2812 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2813 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2814
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2815 /* 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	2816 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	2817 && 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	2818 && 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	2819 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2820
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2821 /* 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	2822 * 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	2823 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	2824 && 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	2825 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2826 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2827 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2828 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2829 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2830
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2831 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2832 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2833 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2834 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	2835 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	2836 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2837 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2838 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2839 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2840 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2841 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2842 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2843 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2844
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2845 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2846 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2847 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2848 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2849 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2850
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2851 msg_start();
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2852 msg_puts_attr((char_u *)_("number changes when saved"),
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2853 hl_attr(HLF_T));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2854 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2855 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2856 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2857 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2858 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2859 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2860 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2861 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2862
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2863 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2864 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2865 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2866
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2867 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2868 * 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	2869 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2870 static void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2871 u_add_time(buf, buflen, tt)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2872 char_u *buf;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2873 size_t buflen;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2874 time_t tt;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2875 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2876 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2877 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2878
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2879 if (time(NULL) - tt >= 100)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2880 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2881 curtime = localtime(&tt);
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2882 if (time(NULL) - tt < (60L * 60L * 12L))
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2883 /* within 12 hours */
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2884 (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	2885 else
3751 b7eea2409507 updated for version 7.3.634 Bram Moolenaar <bram@vim.org> parents: 3545 diff changeset	2886 /* longer ago */
2689 26fb122355d4 updated for version 7.3.107 Bram Moolenaar <bram@vim.org> parents: 2685 diff changeset	2887 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2888 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2889 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2890 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	2891 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2892 (long)(time(NULL) - tt));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2893 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2894
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2895 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2896 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2897 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2898 void
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2899 ex_undojoin(eap)
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2900 exarg_T *eap UNUSED;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2901 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2902 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2903 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2904 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2905 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2906 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2907 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2908 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2909 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2910 return; /* already unsynced */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2911 if (p_ul < 0)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2912 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2913 else
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2914 {
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2915 /* Go back to the last entry */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2916 curbuf->b_u_curhead = curbuf->b_u_newhead;
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2917 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2918 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2919 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2920
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2921 /*
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	2922 * Called after writing or reloading the file and setting b_changed to FALSE.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2923 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2924 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2925 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2926 u_unchanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2927 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2928 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2929 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2930 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2931 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2932
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2933 /*
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2934 * 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	2935 * 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	2936 */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2937 void
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2938 u_find_first_changed()
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2939 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2940 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	2941 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	2942 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	2943
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2944 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	2945 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	2946
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2947 /* 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	2948 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	2949 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	2950 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2951
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2952 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	2953 && 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	2954 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	2955 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	2956 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2957 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2958 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	2959 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2960 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2961 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	2962 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2963 /* lines added or deleted at the end, put 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	2964 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2965 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	2966 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2967 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2968
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2969 /*
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2970 * 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	2971 * used for "u".
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2972 */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2973 void
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2974 u_update_save_nr(buf)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2975 buf_T *buf;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2976 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2977 u_header_T *uhp;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2978
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2979 ++buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2980 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	2981 uhp = buf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2982 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2983 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2984 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2985 uhp = buf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2986 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2987 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	2988 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2989
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2990 static void
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2991 u_unch_branch(uhp)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2992 u_header_T *uhp;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2993 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2994 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2995
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2996 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2997 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2998 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	2999 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	3000 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3001 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3002 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3003
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3004 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3005 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3006 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3007 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3008 static u_entry_T *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3009 u_get_headentry()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3010 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3011 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3012 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3013 EMSG(_("E439: undo list corrupt"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3014 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3015 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3016 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3017 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3018
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3019 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3020 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3021 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3022 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3023 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3024 u_getbot()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3025 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3026 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3027 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3028
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3029 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3030 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3031 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3032
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3033 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3034 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3035 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3036 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3037 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3038 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3039 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3040 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3041 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3042 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3043 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3044 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3045 EMSG(_("E440: undo line missing"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3046 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3047 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3048 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3049 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3050 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3051
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3052 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3053 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3054
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3055 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3056 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3057
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3058 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3059 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3060 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3061 static void
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3062 u_freeheader(buf, uhp, uhpp)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3063 buf_T *buf;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3064 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3065 u_header_T *uhpp; / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3066 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3067 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3068
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3069 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3070 * 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	3071 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	3072 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3073
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->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3076
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3077 /* 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	3078 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	3079 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3080 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3081 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3082
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3083 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	3084 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3085 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3086 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	3087 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	3088 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3089
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3090 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3091 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3092
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3093 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3094 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3095 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3096 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3097 u_freebranch(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3098 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3099 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3100 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3101 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3102 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3103
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3104 /* 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	3105 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3106 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3107 {
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3108 u_freeheader(buf, uhp, uhpp);
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3109 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3110 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3111
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3112 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	3113 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3114
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3115 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3116 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3117 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3118 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3119 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	3120 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	3121 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3122 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3123 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3124 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3125
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3126 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3127 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3128 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3129 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3130 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3131 u_freeentries(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3132 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3133 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3134 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3135 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3136 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3137
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3138 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3139 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3140 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3141 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3142 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3143 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3144 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3145
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3146 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3147 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3148 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3149 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3150 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3151
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3152 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3153 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3154 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3155 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3156 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3157 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3158
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3159 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3160 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3161 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3162 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3163 u_freeentry(uep, n)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3164 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3165 long n;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3166 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	3167 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3168 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	3169 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3170 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3171 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3172 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3173 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3174 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3175
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3176 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3177 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3178 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3179 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3180 u_clearall(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3181 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3182 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3183 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3184 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3185 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3186 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3187 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3188 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3189
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3190 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3191 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3192 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3193 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3194 u_saveline(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3195 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3196 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3197 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3198 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	3199 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3200 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3201 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3202 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3203 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3204 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3205 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3206 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3207 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3208 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3209 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3210
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3211 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3212 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3213 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3214 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3215 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3216 u_clearline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3217 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3218 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3219 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3220 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3221 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3222 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3223 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3224 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3225
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3226 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3227 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3228 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3229 * 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	3230 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3231 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3232 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3233 u_undoline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3234 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3235 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3236 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3237
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3238 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3239 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3240
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3241 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3242 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3243 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3244 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3245 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3246 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3247
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3248 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3249 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	3250 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3251 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3252 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3253 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3254 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3255 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3256 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3257 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3258 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3259 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	3260 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3261 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3262
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3263 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3264 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3265 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3266 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3267 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3268 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3269 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3270
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3271 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3272 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3273 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3274 void
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3275 u_blockfree(buf)
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3276 buf_T *buf;
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3277 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3278 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3279 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	3280 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3281 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3282
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3283 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3284 * 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	3285 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3286 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3287 static char_u *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3288 u_save_line(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3289 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3290 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3291 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3292 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3293
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3294 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3295 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3296 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3297 * "nofile" and "scratch" type buffers are considered to always be unchanged.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3298 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3299 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3300 bufIsChanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3301 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3302 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3303 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3304 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3305 !bt_dontwrite(buf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3306 #endif
2685 862d920800b1 updated for version 7.3.103 Bram Moolenaar <bram@vim.org> parents: 2666 diff changeset	3307 (buf->b_changed \|\| file_ff_differs(buf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3308 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3309
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3310 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3311 curbufIsChanged()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3312 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3313 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3314 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3315 !bt_dontwrite(curbuf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3316 #endif
2685 862d920800b1 updated for version 7.3.103 Bram Moolenaar <bram@vim.org> parents: 2666 diff changeset	3317 (curbuf->b_changed \|\| file_ff_differs(curbuf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3318 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3319
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3320 #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	3321 /*
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3322 * 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	3323 * Recursive.
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3324 */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3325 void
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3326 u_eval_tree(first_uhp, list)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3327 u_header_T *first_uhp;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3328 list_T *list;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3329 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3330 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	3331 dict_T *dict;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3332
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3333 while (uhp != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3334 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3335 dict = dict_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3336 if (dict == NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3337 return;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3338 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL);
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	3339 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3340 if (uhp == curbuf->b_u_newhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3341 dict_add_nr_str(dict, "newhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3342 if (uhp == curbuf->b_u_curhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3343 dict_add_nr_str(dict, "curhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3344 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	3345 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3346
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3347 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	3348 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3349 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	3350
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3351 if (alt_list != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3352 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3353 /* 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	3354 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	3355 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	3356 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3357 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3358
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3359 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	3360 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	3361 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3362 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3363 #endif

Mercurial > vim

annotate src/undo.c @ 4706:bf917ee1fad2 v7.3.1100