vim: src/undo.c annotate

annotate src/undo.c @ 2242:bc4685345719 vim73

Don't use pointers to store numbers, use a union. Fixed MSVC makefile use of /Wp64 flag.

author	Bram Moolenaar <bram@vim.org>
date	Tue, 01 Jun 2010 19:58:08 +0200
parents	732cb7b31956
children	4e0124f5aee2

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
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	84 #if defined(MSDOS) \|\| defined(WIN16) \|\| defined(WIN32) \|\| defined(_WIN64)
120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	85 # include "vimio.h" /* for vim_read(), must be before vim.h */
120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	86 #endif
120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	87
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	88 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	89
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	90 static void u_unch_branch __ARGS((u_header_T *uhp));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	91 static u_entry_T *u_get_headentry __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	92 static void u_getbot __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	93 static int u_savecommon __ARGS((linenr_T, linenr_T, linenr_T));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	94 static void u_doit __ARGS((int count));
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	95 static void u_undoredo __ARGS((int undo));
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	96 static void u_undo_end __ARGS((int did_undo, int absolute));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	97 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	98 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	99 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	100 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	101 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	102 #ifdef FEAT_PERSISTENT_UNDO
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	103 static void corruption_error __ARGS((char msg, char_u file_name));
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	104 static void u_free_uhp __ARGS((u_header_T *uhp));
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	105 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	106 static int serialize_uhp __ARGS((FILE fp, buf_T buf, u_header_T *uhp));
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	107 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	108 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	109 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	110 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	111 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	112 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	113 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	114 static void put_header_ptr __ARGS((FILE fp, u_header_T uhp));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	115 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	116
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	117 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	118 static char_u *u_save_line __ARGS((linenr_T));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	119
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	120 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	121
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	122 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	123 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	124 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	125 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	126 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	127
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	128 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	129
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	130 #if defined(U_DEBUG) \|\| defined(PROTO)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	131 /*
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	132 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	133 * looks wrong.
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	134 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	135 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	136 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	137 static int header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	138
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	139 static void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	140 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	141 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	142 u_header_T *exp_uh_alt_prev)
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 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	145
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	146 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	147 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	148 ++header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	149 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	150 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	151 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	152 return;
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 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	155 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	156 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	157 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	158 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	159
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	160 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	161 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	162 else
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	163 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	164 /* 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	165 if (uhp->uh_next.ptr != exp_uh_next)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	166 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	167 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	168 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	169 exp_uh_next, uhp->uh_next.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	170 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	171 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	172 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	173 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	174 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	175 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	176 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	177
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	178 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	179 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
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 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	182 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	183 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	184 break;
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 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	187
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	188 /* 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	189 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	190
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	191 /* 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	192 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	193 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	194 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	195
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	196 void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	197 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	198 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	199 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	200 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	201 header_count = 0;
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 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	204
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	205 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	206 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	207 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	208 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	209 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	210 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	211 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	212 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	213 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	214 (long)header_count, (long)curbuf->b_u_numhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	215 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	216 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	217 #endif
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	218
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	219 /*
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	220 * Save the current line for both the "u" and "U" command.
7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	221 * Returns OK or FAIL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	222 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	223 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	224 u_save_cursor()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	226 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	227 (linenr_T)(curwin->w_cursor.lnum + 1)));
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 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	231 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	232 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1.
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
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	242 if (top > curbuf->b_ml.ml_line_count \|\|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	243 top >= bot \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	244 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	245
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	246 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	247 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	248
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249 return (u_savecommon(top, bot, (linenr_T)0));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	250 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	251
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	252 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	253 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	254 * The line is replaced, so the new bottom line is lnum + 1.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	255 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	256 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	257 u_savesub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	264 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	266 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	267 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	268 * The line is inserted, so the new bottom line is lnum + 1.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	269 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	270 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	271 u_inssub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277 return (u_savecommon(lnum - 1, lnum, lnum + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	281 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	282 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	283 * becomes empty.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	284 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 u_savedel(lnum, nlines)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	287 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288 long nlines;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	290 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 return (u_savecommon(lnum - 1, lnum + nlines,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	296
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	297 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	298 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	299 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	300 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	301 int
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	302 undo_allowed()
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	303 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	304 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	305 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	306 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	307 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	308 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	309 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	310
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	311 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	312 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	313 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	314 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	315 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	316 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	317 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	318 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	319
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	320 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	321 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	322 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	323 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	324 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	325 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	326 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	327
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	329 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	330
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	331 static int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	332 u_savecommon(top, bot, newbot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	333 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	334 linenr_T newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	335 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	336 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	337 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	338 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	339 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	340 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	341 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	342 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	343
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	344 /* When making changes is not allowed return FAIL. It's a crude way to
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	345 * make all change commands fail. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	346 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	347 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	348
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	349 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	350 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	351 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	352 #ifdef FEAT_NETBEANS_INTG
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	353 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	354 * Netbeans defines areas that cannot be modified. Bail out here when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	355 * trying to change text in a guarded area.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	356 */
2210 8c6a66e2b3cc Add :nbstart and :nbclose. Bram Moolenaar <bram@vim.org> parents: 2154 diff changeset	357 if (netbeans_active())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	358 {
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	359 if (netbeans_is_guarded(top, bot))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	360 {
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	361 EMSG(_(e_guarded));
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	362 return FAIL;
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	363 }
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	364 if (curbuf->b_p_ro)
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	365 {
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	366 EMSG(_(e_nbreadonly));
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	367 return FAIL;
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	368 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	369 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	370 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	371
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	372 #ifdef FEAT_AUTOCMD
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	373 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	374 * Saving text for undo means we are going to make a change. Give a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	375 * warning for a read-only file before making the change, so that the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	376 * FileChangedRO event can replace the buffer with a read-write version
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	377 * (e.g., obtained from a source control system).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	378 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	379 change_warning(0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	380 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	381
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	382 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	383
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	384 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	385 * if curbuf->b_u_synced == TRUE make a new header
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	386 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	387 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	388 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	389 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	390 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	391 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	392 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	393
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	394 if (p_ul >= 0)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	395 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	396 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	397 * 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	398 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	399 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	400 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	401 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	402 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	403 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	404 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	405 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	406 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	407 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	408 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	409
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	410 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	411 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	412 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	413 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	414 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	415 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	416 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	417 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	418 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	419 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	420
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	421 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	422 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	423 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	424 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	425 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	426 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	427
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	428 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	429 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	430 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	431 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	432 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	433 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	434 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	435 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	436 /* 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	437 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	438 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	439 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	440 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	441 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	442 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	443 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	444 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	445
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	446 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	447 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	448 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	449 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	450 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	451 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	452 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	453
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	454 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	455 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	456 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	457 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	458 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	459 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	460 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	461 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	462 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	463 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	464 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	465 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	466 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	467 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	468 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	469 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	470
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	471 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	472 curbuf->b_u_seq_cur = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	473 uhp->uh_time = time(NULL);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	474 curbuf->b_u_seq_time = uhp->uh_time + 1;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	475
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	476 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	477 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	478 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	479 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	480 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	481 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	482 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	483 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	484 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	485 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	486
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	487 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	488 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	489 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	490
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	491 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	492 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	493 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	494 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	495 #endif
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	496
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	497 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	498 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	499 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	500 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	501 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	502 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	503 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	504 if (p_ul < 0) /* no undo at all */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	505 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	506
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	507 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	508 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	509 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	510 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	511 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	512 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	513 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	514 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	516 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	517 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	518 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	519 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	520 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	521 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	522 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	523 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	524
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	525 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	526 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	527 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	528 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	529 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	530 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	531 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	532 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	533 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	534 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	535 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	536 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	537
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	538 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	539 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	540 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	541 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	542 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	543 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	544 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	545 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	556 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	558 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	559
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	560 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	562 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	563 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	567 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	571 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 * With Amiga and MSDOS 16 bit we can't handle big undo's, because
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	593 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	595 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	596 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	597 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	598 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	599 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	617 if (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	619 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	620 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	622 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	625 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	626 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	627 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	628 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	629 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	630 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	631 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	632 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	640 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	641 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	644 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	646
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	647 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	648 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	649 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	650 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	654 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	655 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	656 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	657 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	658 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	659 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	660 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	661 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	664 #ifdef FEAT_PERSISTENT_UNDO
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	665
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	666 # 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	667 # 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	668 # 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	669 # 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	670 # 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	671 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	672 # define UF_VERSION 1 /* 2-byte undofile version number */
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	673 # define UF_VERSION_CRYPT 0x8001 /* idem, encrypted */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	674
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	675 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	676
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	677 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	678 * 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	679 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	680 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	681 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	682 char_u *hash;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	683 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	684 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	685 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	686 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	687
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	688 sha256_start(&ctx);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	689 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	690 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	691 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	692 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	693 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	694 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	695 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	696
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	697 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	698 * 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	699 * 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	700 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	701 * 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	702 * 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	703 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	704 char_u *
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	705 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	706 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	707 int reading;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	708 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	709 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	710 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	711 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	712 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	713 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	714 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	715 struct stat st;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	716 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	717 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	718 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	719 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	720
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	721 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	722 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	723
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	724 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	725 /* 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	726 * 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	727 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	728 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	729 #endif
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 /* 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	732 * 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	733 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	734 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	735 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	736 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ",");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	737 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	738 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	739 /* 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	740 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	741 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	742 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	743 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	744 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	745 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	746 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	747 STRCAT(p, ".un~");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	748 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	749 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	750 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	751 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	752 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	753 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	754 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	755 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	756 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	757 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	758 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	759 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	760 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	761 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	762 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	763 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	764 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	765 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	766
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	767 /* 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	768 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	769 \|\| 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	770 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	771 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	772 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	773 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	774
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	775 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	776 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	777 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	778
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	779 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	780 corruption_error(msg, file_name)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	781 char *msg;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	782 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	783 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	784 EMSG3(_("E825: Corrupted undo file (%s): %s"), msg, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	785 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	786
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	787 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	788 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	789 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	790 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	791 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	792 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	793
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	794 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	795 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	796 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	797 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	798 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	799 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	800 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	801 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	802 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	803
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	804 static int
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	805 serialize_header(fp, buf, hash)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	806 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	807 buf_T *buf;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	808 char_u *hash;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	809 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	810 int len;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	811
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	812 /* 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	813 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	814 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	815
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	816 /* 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	817 * 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	818 #ifdef FEAT_CRYPT
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	819 if (*buf->b_p_key)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	820 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	821 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	822 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	823
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	824 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	825 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	826 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	827 return FAIL;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	828 len = fwrite(header, (size_t)header_len, (size_t)1, fp);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	829 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	830 if (len != 1)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	831 return FAIL;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	832 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	833 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	834 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	835 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	836
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	837
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	838 /* 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	839 * 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	840 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	841 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	842
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	843 /* buffer-specific data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	844 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	845 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	846 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	847 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	848 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	849 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	850 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	851
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	852 /* Undo structures header data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	853 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	854 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	855 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	856
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	857 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	858 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	859 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	860 put_time(fp, buf->b_u_seq_time);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	861
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	862 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	863 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	864
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	865 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	866 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	867 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	868 buf_T *buf;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	869 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	870 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	871 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	872 u_entry_T *uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	873
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	874 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	875 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	876
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	877 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	878 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	879 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	880 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	881 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	882 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	883 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	884 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	885 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	886 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	887 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	888 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	889 /* 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	890 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	891 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	892 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	893 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	894 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	895 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	896 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	897
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	898 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	899 serialize_visualinfo(&info, fp);
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 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	902 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	903
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	904 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	905 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	906 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	907 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	908 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	909 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	910 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	911 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	912 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	913 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	914
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	915 static u_header_T *
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	916 unserialize_uhp(fp, file_name)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	917 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	918 char_u *file_name;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	919 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	920 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	921 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	922 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	923 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	924 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	925
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	926 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	927 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	928 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	929 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	930 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	931 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	932 #endif
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	933 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	934 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	935 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	936 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	937 uhp->uh_seq = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	938 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	939 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	940 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	941 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	942 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	943 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	944 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	945 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	946 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	947 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	948 (void)get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	949 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	950 uhp->uh_flags = get2c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	951 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	952 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	953 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	954 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	955 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	956 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	957 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	958 unserialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	959 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	960 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	961 uhp->uh_time = get8ctime(fp);
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 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	964 last_uep = NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	965 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	966 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	967 error = FALSE;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	968 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	969 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	970 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	971 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	972 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	973 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	974 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	975 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	976 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	977 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	978 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	979 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	980 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	981 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	982 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	983 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	984 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	985 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	986
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	987 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	988 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	989
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	990 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	991 * 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	992 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	993 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	994 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	995 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	996 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	997 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	998 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	999 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1000 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1001
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1002 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	1003 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	1004 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	1005 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	1006 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	1007 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1008 len = STRLEN(uep->ue_array[i]);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1009 if (put_bytes(fp, (long_u)len, 4) == FAIL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1010 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	1011 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	1012 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1013 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1014 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1015 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1016
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1017 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	1018 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	1019 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1020 int *error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1021 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	1022 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1023 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1024 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	1025 char_u **array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1026 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1027 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1028
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1029 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	1030 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1031 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1032 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	1033 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1034 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	1035 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1036 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	1037 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	1038 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	1039 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	1040 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	1041 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1042 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	1043 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1044 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1045 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1046 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1047 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1048 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	1049 }
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	1050 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	1051 array = NULL;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1052 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	1053
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1054 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	1055 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1056 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	1057 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	1058 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	1059 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1060 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1061 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1062 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	1063 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1064 if (line == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1065 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1066 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1067 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1068 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1069 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1070 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1071 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1072 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1073
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1074 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1075 * 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	1076 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1077 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1078 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	1079 pos_T pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1080 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1081 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1082 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	1083 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	1084 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1085 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	1086 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1087 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	1088 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1089 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1090
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1091 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1092 * 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	1093 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1094 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1095 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	1096 pos_T *pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1097 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1098 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1099 pos->lnum = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1100 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1101 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	1102 pos->col = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1103 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1104 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	1105 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1106 pos->coladd = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1107 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1108 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	1109 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1110 (void)get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1111 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1112 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1113
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1114 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1115 * 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	1116 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1117 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1118 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	1119 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1120 FILE *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 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	1123 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	1124 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	1125 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	1126 }
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 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1129 * 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	1130 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1131 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1132 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	1133 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1134 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1135 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1136 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	1137 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	1138 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	1139 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	1140 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1141
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 * 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	1144 * 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	1145 * pointers when reading. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1146 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1147 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	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 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	1150 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1151 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	1152 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1153
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1154 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1155 * 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	1156 * 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	1157 * 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	1158 * "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	1159 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1160 * "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	1161 * "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	1162 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1163 void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1164 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	1165 char_u *name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1166 int forceit;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1167 buf_T *buf;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1168 char_u *hash;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1169 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1170 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	1171 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1172 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1173 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1174 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	1175 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1176 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1177 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1178 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1179 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	1180 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1181 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	1182 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	1183 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	1184 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1185
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1186 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1187 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1188 file_name = u_get_undo_file_name(buf->b_ffname, FALSE);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1189 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	1190 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1191 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	1192 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1193 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1194 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	1195 _("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	1196 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1197 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1198 return;
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 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1201 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1202 file_name = name;
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 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1205 * 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	1206 * 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	1207 * 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	1208 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1209 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1210 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	1211 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1212 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1213 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	1214 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1215 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	1216 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	1217 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1218 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1219 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	1220 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1221 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1222 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1223 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1224
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1225 /* 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	1226 perm = perm & 0777;
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 /* 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	1229 * 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	1230 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	1231 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1232 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	1233 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1234 /* 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	1235 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	1236 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1237 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1238 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	1239 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1240 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	1241 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1242 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	1243 _("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	1244 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	1245 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	1246 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1247 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1248 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1249 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1250 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1251 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1252 char_u 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	1253 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1254
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1255 len = vim_read(fd, 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	1256 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1257 if (len < 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	1258 \|\| memcmp(buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
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 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	1261 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1262 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	1263 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1264 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1265 _("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	1266 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	1267 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	1268 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1269 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1270 goto theend;
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 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1273 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1274 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	1275 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1276
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1277 /* 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	1278 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1279 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	1280 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1281 if (p_verbose > 0)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1282 verb_msg((char_u *)_("Skipping undo file write, noting to undo"));
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1283 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1284 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1285
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1286 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	1287 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	1288 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1289 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1290 EMSG2(_(e_not_open), file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1291 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1292 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1293 (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	1294 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	1295 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1296 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1297 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	1298 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1299 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1300
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1301 #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	1302 /* 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	1303 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1304 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1305
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1306 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1307 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1308 * 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	1309 * 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	1310 * 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	1311 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1312 if (st_old_valid && (mch_stat((char *)file_name, &st_new) >= 0
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1313 && st_new.st_gid != st_old.st_gid
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1314 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1315 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1316 # endif
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 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	1319 # ifdef HAVE_SELINUX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1320 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	1321 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	1322 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1323 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1324
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1325 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	1326 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1327 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1328 EMSG2(_(e_not_open), file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1329 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1330 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	1331 goto theend;
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
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1334 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1335 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1336
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1337 /*
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1338 * Write the header.
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1339 */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1340 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	1341 goto write_error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1342
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 * 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	1345 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1346 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1347 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	1348 while (uhp != NULL)
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 /* Serialize current UHP if we haven't seen it */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1351 if (uhp->uh_walk != mark)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1352 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1353 uhp->uh_walk = mark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1354 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1355 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1356 #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	1357 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	1358 goto write_error;
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
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1361 /* Now walk through the tree - algorithm from undo_time(). */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1362 if (uhp->uh_prev.ptr != NULL && 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	1363 uhp = uhp->uh_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1364 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	1365 && 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	1366 uhp = 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	1367 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	1368 && uhp->uh_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	1369 uhp = uhp->uh_next.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1370 else 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	1371 uhp = uhp->uh_alt_prev.ptr;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1372 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1373 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	1374 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1375
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1376 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	1377 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1378 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1379 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	1380 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	1381 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	1382 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1383
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1384 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1385 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1386 if (!write_ok)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1387 EMSG2(_("E829: write error in undo file: %s"), file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1388
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1389 #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	1390 /* 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	1391 * 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	1392 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	1393 (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	1394 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1395 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1396 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	1397 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1398 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	1399
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1400 /* 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	1401 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	1402 mch_set_acl(file_name, acl);
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 #endif
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 theend:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1407 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	1408 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	1409 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1410
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1411 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1412 * 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	1413 * 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	1414 * 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	1415 * 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	1416 * "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	1417 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1418 void
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1419 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	1420 char_u *name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1421 char_u *hash;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1422 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	1423 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1424 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	1425 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1426 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	1427 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	1428 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	1429 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	1430 linenr_T line_count;
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	1431 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	1432 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	1433 long seq_last, seq_cur;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1434 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	1435 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	1436 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	1437 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1438 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1439 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	1440 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	1441 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	1442 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	1443 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1444 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	1445 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1446 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1447 struct stat st_orig;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1448 struct stat st_undo;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1449 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1450
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1451 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1452 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1453 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1454 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	1455 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1456
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1457 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1458 /* 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	1459 * owner of the text file. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1460 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	1461 && 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	1462 && 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	1463 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1464 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1465 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1466 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1467 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	1468 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1469 verbose_leave();
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 return;
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 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1474 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1475 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1476 file_name = name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1477
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1478 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	1479 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1480 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1481 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	1482 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1483 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1484
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1485 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	1486 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1487 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1488 if (name != NULL \|\| p_verbose > 0)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1489 EMSG2(_("E822: Cannot open undo file for reading: %s"), file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1490 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1491 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1492
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1493 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1494 * 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	1495 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1496 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	1497 \|\| 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	1498 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1499 EMSG2(_("E823: Not an undo file: %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	1500 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1501 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1502 version = get2c(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	1503 if (version == UF_VERSION_CRYPT)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1504 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1505 #ifdef FEAT_CRYPT
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1506 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	1507 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1508 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	1509 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	1510 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1511 #else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1512 EMSG2(_("E826: Undo file is encrypted: %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	1513 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	1514 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1515 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1516 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	1517 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1518 EMSG2(_("E824: Incompatible 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	1519 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1520 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1521
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1522 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	1523 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1524 corruption_error("hash", file_name);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1525 goto error;
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1526 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1527 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	1528 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	1529 \|\| 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	1530 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1531 if (p_verbose > 0 \|\| name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1532 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1533 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	1534 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1535 give_warning((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1536 _("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	1537 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	1538 verbose_leave();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1539 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1540 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1541 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1542
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1543 /* 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	1544 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	1545 if (str_len < 0)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1546 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1547 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	1548 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	1549 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	1550 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	1551 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	1552 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1553 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	1554 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1555 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1556
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1557 /* 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	1558 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	1559 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	1560 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	1561 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	1562 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	1563 seq_cur = get4c(fp);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1564 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	1565
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1566 /* 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	1567 * 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	1568 * 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	1569 * 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	1570 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1571 {
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1572 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	1573 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	1574 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1575 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1576 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1577
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1578 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	1579 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1580 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1581 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1582 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	1583 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1584 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1585
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1586 uhp = unserialize_uhp(fp, file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1587 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1588 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1589 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1590 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1591
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1592 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1593 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1594 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1595 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1596 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1597 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	1598 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1599 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	1600 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1601 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1602
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1603 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1604 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	1605 (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	1606 # 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	1607 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1608 # 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	1609 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1610
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1611 /* 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	1612 * 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	1613 * 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	1614 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	1615 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1616 uhp = uhp_table[i];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1617 if (uhp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1618 continue;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1619 for (j = 0; j < num_head; j++)
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1620 if (uhp_table[j] != NULL && i != j
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1621 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq)
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1622 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1623 corruption_error("duplicate uh_seq", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1624 goto error;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1625 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1626 for (j = 0; j < num_head; j++)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1627 if (uhp_table[j] != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1628 && 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	1629 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1630 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	1631 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1632 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1633 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1634 for (j = 0; j < num_head; j++)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1635 if (uhp_table[j] != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1636 && 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	1637 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1638 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	1639 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1640 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1641 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1642 for (j = 0; j < num_head; j++)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1643 if (uhp_table[j] != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1644 && 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	1645 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1646 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	1647 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1648 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1649 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1650 for (j = 0; j < num_head; j++)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1651 if (uhp_table[j] != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1652 && 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	1653 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1654 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	1655 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1656 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1657 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1658 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	1659 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1660 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	1661 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1662 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1663 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	1664 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1665 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	1666 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1667 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1668 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	1669 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1670 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	1671 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1672 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1673 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1674
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1675 /* 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	1676 * 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	1677 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	1678 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	1679 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	1680 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	1681 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	1682 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	1683 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	1684 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	1685 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	1686 curbuf->b_u_seq_cur = seq_cur;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1687 curbuf->b_u_seq_time = seq_time;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1688
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1689 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	1690 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	1691
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1692 #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	1693 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	1694 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	1695 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	1696 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	1697 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1698 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1699
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1700 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1701 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	1702 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1703
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1704 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1705 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	1706 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	1707 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1708 for (i = 0; i < num_read_uhps; i++)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1709 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1710 u_free_uhp(uhp_table[i]);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1711 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	1712 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1713
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1714 theend:
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1715 if (fp != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1716 fclose(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1717 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	1718 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	1719 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1720 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1721
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1722 #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	1723
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1724
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1725 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1726 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1727 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1728 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1729 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1730 u_undo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1731 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1732 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1733 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1734 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1735 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1736 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1737 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1738 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1739 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1740 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1741 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1742 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1743
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1744 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1745 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1746 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1747 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1748 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1749 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1750
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1751 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1752 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1753 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1754 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1755 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1756 u_redo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1757 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1758 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1759 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1760 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1761 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1762 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1763
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1764 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1765 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1766 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1767 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1768 u_doit(startcount)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1769 int startcount;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1770 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1771 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1772
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	1773 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1774 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1775
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1776 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1777 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1778 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1779 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1780 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1781 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1782 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1783 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1784 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1785 curbuf->b_u_curhead = curbuf->b_u_newhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1786 else if (p_ul > 0) /* multi level undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1787 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1788 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1789 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1790 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1791 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1792 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1793 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1794 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1795 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1796 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1797 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1798 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1799 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1800 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1801 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1802
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1803 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1804 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1805 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1806 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1807 if (curbuf->b_u_curhead == NULL \|\| p_ul <= 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1808 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1809 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1810 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1811 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1812 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1813 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1814 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1815 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1816 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1817
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1818 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1819
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1820 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1821 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1822 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1823 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	1824 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1825 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1826 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1827 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1828 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1829
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1830 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1831 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1832 * 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	1833 * 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	1834 * seconds.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1835 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1836 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1837 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1838 void
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1839 undo_time(step, sec, absolute)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1840 long step;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1841 int sec;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1842 int absolute;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1843 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1844 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1845 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1846 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1847 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1848 long val;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1849 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1850 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1851 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1852 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1853 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1854 int dosec = sec;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1855 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	1856 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1857
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1858 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1859 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1860 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1861
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1862 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1863 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1864 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1865 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1866
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1867 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1868 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1869 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1870 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1871 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1872 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1873 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1874 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1875 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1876 /* When doing computations with time_t subtract starttime, because
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1877 * time_t converted to a long may result in a wrong number. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1878 if (sec)
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1879 target = (long)(curbuf->b_u_seq_time - starttime) + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1880 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1881 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1882 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1883 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1884 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1885 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1886 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1887 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1888 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1889 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1890 if (sec)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1891 closest = (long)(time(NULL) - starttime + 1);
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1892 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1893 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1894 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1895 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1896 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1897 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1898 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1899 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1900
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1901 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1902 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1903 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1904 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1905 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1906 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1907 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1908 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1909 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1910 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1911 /* 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	1912 * 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	1913 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1914 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1915 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1916 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1917
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1918 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1919 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1920 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1921 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1922
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1923 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1924 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1925 uhp->uh_walk = mark;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1926 val = (long)(dosec ? (uhp->uh_time - starttime) : uhp->uh_seq);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1927
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1928 if (round == 1)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1929 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1930 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1931 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1932 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1933 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1934 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1935 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1936 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1937 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1938 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1939 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1940 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1941 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1942 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1943 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1944 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1945 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1946 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1947 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1948 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1949 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1950 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1951 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1952 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1953
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1954 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1955 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1956 if (target == val && !dosec)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1957 break;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1958
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1959 /* 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	1960 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	1961 && 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	1962 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1963
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1964 /* 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	1965 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	1966 && 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	1967 && 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	1968 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1969
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1970 /* 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	1971 * 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	1972 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	1973 && 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	1974 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1975 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1976 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1977 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1978 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	1979 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1980 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1981
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1982 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1983 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1984 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1985 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	1986 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	1987 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1988 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1989 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1990 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1991 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1992
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1993 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1994 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1995
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1996 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1997 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1998 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1999 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2000 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2001
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2002 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2003 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2004 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2005 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2006 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2007 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2008 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2009 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2010
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2011 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2012 dosec = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2013 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2014 above = TRUE; /* stop above the header */
753 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 /* 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	2018 if (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2019 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2020 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2021 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2022 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2023 for (;;)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2024 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2025 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2026 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2027 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2028 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2029 uhp = uhp->uh_next.ptr;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2030 if (uhp == NULL \|\| uhp->uh_walk != mark
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2031 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2032 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2033 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2034 u_undoredo(TRUE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2035 uhp->uh_walk = nomark; /* don't go back down here */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2036 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2037
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2038 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2039 * And now go down the tree (redo), branching off where needed.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2040 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2041 uhp = curbuf->b_u_curhead;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2042 while (uhp != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2043 {
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2044 /* 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	2045 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	2046 && 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	2047 uhp = uhp->uh_alt_prev.ptr;
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2048
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2049 /* Find the last branch with a mark, that's the one. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2050 last = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2051 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	2052 && 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	2053 last = last->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2054 if (last != uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2055 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2056 /* Make the used branch the first entry in the list of
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2057 * 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	2058 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	2059 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	2060 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	2061 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	2062 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	2063 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	2064 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	2065 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	2066 uhp->uh_alt_prev.ptr = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2067
2234 3b241fd8d7c0 updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2233 diff changeset	2068 if (curbuf->b_u_oldhead == uhp)
3b241fd8d7c0 updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2233 diff changeset	2069 curbuf->b_u_oldhead = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2070 uhp = last;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2071 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	2072 uhp->uh_next.ptr->uh_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2073 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2074 curbuf->b_u_curhead = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2075
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2076 if (uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2077 break; /* must have reached the target */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2078
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2079 /* Stop when going backwards in time and didn't find the exact
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2080 * header we were looking for. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2081 if (uhp->uh_seq == target && above)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2082 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2083 curbuf->b_u_seq_cur = target - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2084 break;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2085 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2086
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2087 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2088
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2089 /* Advance "curhead" to below the header we last used. If it
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2090 * 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	2091 if (uhp->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2092 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	2093 curbuf->b_u_curhead = uhp->uh_prev.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2094 did_undo = FALSE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2095
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2096 if (uhp->uh_seq == target) /* found it! */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2097 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2098
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2099 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2100 if (uhp == NULL \|\| uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2101 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2102 /* Need to redo more but can't find it... */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2103 EMSG2(_(e_intern2), "undo_time()");
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2104 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2105 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2106 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2107 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2108 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2109 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2110
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2111 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2112 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2113 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2114 * 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	2115 * 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	2116 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2117 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2118 * 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	2119 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2120 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2121 u_undoredo(undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2122 int undo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2123 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2124 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2125 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2126 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2127 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2128 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2129 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2130 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2131 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2132 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2133 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2134 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2135 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2136 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2137 visualinfo_T visualinfo;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2138 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2139 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2140 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2141
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2142 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2143 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2144 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2145 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2146 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2147 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2148 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2149
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2150 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2151 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2152 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2153 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2154 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2155 visualinfo = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2156 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2157 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2158 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2159 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2160 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2161
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2162 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2163 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2164 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2165 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2166 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2167 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2168 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2169 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2170 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2171 EMSG(_("E438: u_undo: line numbers wrong"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2172 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2173 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2174 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2175
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2176 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2177 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2178
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2179 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2180 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2181 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2182 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2183 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2184 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2185 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2186 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2187 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2188 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2189 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2190 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2191 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2192 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2193 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2194 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2195 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2196 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2197 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2198 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2199 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2200 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2201 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2202 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2203 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2204 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2205 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2206 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2207 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2208 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2209 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2210
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2211 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2212
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2213 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2214 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2215 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2216 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	2217 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2218 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2219 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2220 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2221 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2222 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2223 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2224 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2225 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2226 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2227 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2228 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2229 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2230 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2231 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2232 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2233 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2234 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2235 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2236 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2237 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2238 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2239 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2240 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2241 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2242 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2243 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2244 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2245 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2246 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2247
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2248 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2249 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2250 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2251 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2252 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2253 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2254 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2255 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2256 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2257 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2258 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2259 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2260 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	2261 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2262 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2263 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2264 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2265
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2266 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2267 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2268 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2269 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2270 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2271 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2272 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2273 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2274 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2275 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2276
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2277 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2278
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2279 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2280 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2281 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2282 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2283 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2284 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2285 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2286
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2287 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2288 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2289 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2290 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2291 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2292
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2293 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2294 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2295 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2296 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2297 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2298 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2299 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2300
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2301 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2302 curhead->uh_flags = new_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2303 if ((old_flags & UH_EMPTYBUF) && bufempty())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2304 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2305 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2306 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2307 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2308 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2309 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2310 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2311 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2312 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2313
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2314 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2315 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2316 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2317 for (i = 0; i < NMARKS; ++i)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2318 if (curhead->uh_namedm[i].lnum != 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2319 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2320 curbuf->b_namedm[i] = curhead->uh_namedm[i];
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2321 curhead->uh_namedm[i] = namedm[i];
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2322 }
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2323 #ifdef FEAT_VISUAL
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2324 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2325 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2326 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2327 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2328 }
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2329 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2330
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2331 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2332 * 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	2333 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2334 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2335 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2336 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2337 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2338 --curwin->w_cursor.lnum;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2339 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2340 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2341 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2342 #ifdef FEAT_VIRTUALEDIT
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2343 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2344 coladvance((colnr_T)curhead->uh_cursor_vcol);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2345 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2346 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2347 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2348 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2349 else if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2350 beginline(BL_SOL \| BL_FIX);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2351 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2352 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2353 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2354 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2355 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2356 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2357 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2358 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2359 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2360 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2361 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2362
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2363 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2364 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2365
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2366 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2367 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2368 if (undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2369 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2370 * work we compute this as being just above the just undone change. */
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2371 --curbuf->b_u_seq_cur;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2372
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2373 /* 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	2374 * the undone/redone change. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2375 curbuf->b_u_seq_time = curhead->uh_time;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2376 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2377 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2378 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2379 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2380
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2381 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2382 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2383 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2384 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2385 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2386 static void
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2387 u_undo_end(did_undo, absolute)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2388 int did_undo; /* just did an undo */
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2389 int absolute; /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2390 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2391 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2392 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2393 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2394
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2395 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2396 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2397 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2398 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2399
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2400 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2401 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2402 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2403
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2404 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2405 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2406
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2407 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2408 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2409 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2410 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2411 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2412 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2413 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2414 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2415 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2416 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2417 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2418 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2419 if (u_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2420 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2421 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2422 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2423 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2424
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2425 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2426 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2427 /* 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	2428 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2429 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2430 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2431 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2432 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2433 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2434 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2435 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2436 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2437 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2438 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2439 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2440
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2441 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2442 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2443 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2444 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2445
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2446 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2447 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2448 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2449 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2450 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2451 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2452 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2453
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2454 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2455 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2456 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2457 void
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2458 u_sync(force)
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2459 int force; /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2460 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2461 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2462 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2463 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2464 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2465 if (im_is_preediting())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2466 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2467 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2468 if (p_ul < 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2469 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2470 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2471 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2472 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2473 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2474 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2475 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2476
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2477 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2478 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2479 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2480 void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2481 ex_undolist(eap)
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	2482 exarg_T *eap UNUSED;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2483 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2484 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2485 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2486 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2487 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2488 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2489 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2490
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2491 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2492 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2493 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2494 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2495 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2496 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2497 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2498 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2499
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2500 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2501 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2502 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2503 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2504 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2505 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2506 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2507 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2508 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2509 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2510 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2511 uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2512 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2513 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2514
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2515 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2516
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2517 /* 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	2518 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	2519 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2520 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2521 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2522 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2523 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2524
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2525 /* 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	2526 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	2527 && 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	2528 && 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	2529 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2530
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2531 /* 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	2532 * 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	2533 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	2534 && 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	2535 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2536 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2537 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2538 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2539 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2540
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2541 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2542 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2543 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2544 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	2545 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	2546 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2547 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2548 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2549 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2550 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2551 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2552 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2553 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2554
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2555 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2556 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2557 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2558 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2559 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2560
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2561 msg_start();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2562 msg_puts_attr((char_u *)_("number changes time"), hl_attr(HLF_T));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2563 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2564 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2565 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2566 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2567 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2568 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2569 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2570 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2571
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2572 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2573 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2574 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2575
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2576 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2577 * 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	2578 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2579 static void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2580 u_add_time(buf, buflen, tt)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2581 char_u *buf;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2582 size_t buflen;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2583 time_t tt;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2584 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2585 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2586 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2587
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2588 if (time(NULL) - tt >= 100)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2589 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2590 curtime = localtime(&tt);
810 9f345c48220b updated for version 7.0c vimboss parents: 798 diff changeset	2591 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2592 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2593 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2594 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	2595 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2596 (long)(time(NULL) - tt));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2597 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2598
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2599 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2600 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2601 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2602 void
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2603 ex_undojoin(eap)
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	2604 exarg_T *eap UNUSED;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2605 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2606 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2607 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2608 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2609 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2610 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2611 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2612 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2613 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2614 return; /* already unsynced */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2615 if (p_ul < 0)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2616 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2617 else
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2618 {
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2619 /* Go back to the last entry */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2620 curbuf->b_u_curhead = curbuf->b_u_newhead;
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2621 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2622 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2623 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2624
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2625 /*
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2626 * Called after writing the file and setting b_changed to FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2627 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2628 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2629 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2630 u_unchanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2631 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2632 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2633 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2634 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2635 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2636
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2637 static void
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2638 u_unch_branch(uhp)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2639 u_header_T *uhp;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2640 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2641 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2642
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2643 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2644 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2645 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	2646 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	2647 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2648 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2649 }
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 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2653 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2654 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2655 static u_entry_T *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2656 u_get_headentry()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2657 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2658 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2659 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2660 EMSG(_("E439: undo list corrupt"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2661 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2662 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2663 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2664 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2665
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2666 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2667 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2668 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2669 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2670 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2671 u_getbot()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2672 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2673 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2674 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2675
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2676 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2677 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2678 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2679
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2680 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2681 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2682 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2683 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2684 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2685 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2686 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2687 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2688 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2689 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2690 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2691 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2692 EMSG(_("E440: undo line missing"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2693 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2694 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2695 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2696 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2697 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2698
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2699 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2700 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2701
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2702 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2703 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2704
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2705 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2706 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2707 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2708 static void
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2709 u_freeheader(buf, uhp, uhpp)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2710 buf_T *buf;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2711 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2712 u_header_T *uhpp; / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2713 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2714 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2715
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2716 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2717 * 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	2718 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	2719 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2720
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2721 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	2722 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2723
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2724 /* 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	2725 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	2726 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2727 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2728 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2729
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2730 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	2731 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2732 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2733 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	2734 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	2735 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2736
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2737 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2738 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2739
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2740 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2741 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2742 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2743 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2744 u_freebranch(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2745 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2746 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2747 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2748 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2749 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2750
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2751 /* 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	2752 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2753 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2754 {
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2755 u_freeheader(buf, uhp, uhpp);
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2756 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2757 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2758
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2759 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	2760 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2761
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2762 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2763 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2764 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2765 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2766 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	2767 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	2768 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2769 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2770 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2771 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2772
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2773 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2774 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2775 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2776 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2777 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2778 u_freeentries(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2779 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2780 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2781 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2782 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2783 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2784
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2785 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2786 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2787 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2788 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2789 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2790 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2791 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2792
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2793 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2794 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2795 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2796 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2797 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2798
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2799 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2800 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2801 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2802 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2803 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2804 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2805
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2806 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2807 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2808 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2809 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2810 u_freeentry(uep, n)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2811 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2812 long n;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2813 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2814 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2815 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	2816 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2817 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2818 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2819 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2820 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2821 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2822
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2823 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2824 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2825 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2826 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2827 u_clearall(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2828 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2829 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2830 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2831 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2832 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2833 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2834 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2835 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2836
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2837 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2838 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2839 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2840 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2841 u_saveline(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2842 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2843 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2844 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2845 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	2846 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2847 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2848 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2849 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2850 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2851 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2852 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2853 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2854 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2855 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2856 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2857
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2858 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2859 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2860 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2861 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2862 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2863 u_clearline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2864 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2865 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2866 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2867 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2868 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2869 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2870 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2871 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2872
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2873 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2874 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2875 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2876 * We also allow the cursor to be in another line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2877 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2878 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2879 u_undoline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2880 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2881 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2882 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2883
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2884 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2885 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2886
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2887 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2888 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2889 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2890 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2891 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2892 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2893
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2894 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2895 if (u_savecommon(curbuf->b_u_line_lnum - 1,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2896 curbuf->b_u_line_lnum + 1, (linenr_T)0) == FAIL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2897 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2898 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2899 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2900 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2901 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2902 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2903 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2904 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2905 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	2906 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2907 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2908
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2909 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2910 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2911 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2912 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2913 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2914 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2915 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2916
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2917 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2918 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2919 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2920 void
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2921 u_blockfree(buf)
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2922 buf_T *buf;
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2923 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2924 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2925 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	2926 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2927 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2928
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2929 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2930 * 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	2931 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2932 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2933 static char_u *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2934 u_save_line(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2935 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2936 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2937 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2938 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2939
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2940 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2941 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2942 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2943 * "nofile" and "scratch" type buffers are considered to always be unchanged.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2944 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2945 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2946 bufIsChanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2947 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2948 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2949 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2950 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2951 !bt_dontwrite(buf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2952 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2953 (buf->b_changed \|\| file_ff_differs(buf));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2954 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2955
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2956 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2957 curbufIsChanged()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2958 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2959 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2960 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2961 !bt_dontwrite(curbuf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2962 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2963 (curbuf->b_changed \|\| file_ff_differs(curbuf));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2964 }

Mercurial > vim

annotate src/undo.c @ 2242:bc4685345719 vim73