vim: src/undo.c annotate

annotate src/undo.c @ 2267:c08f91142c41 vim73

Crypt the swapfile.

author	Bram Moolenaar <bram@vim.org>
date	Mon, 21 Jun 2010 06:15:46 +0200
parents	ae2e615a7320
children	2b33a7678e7b

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));
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	105 static size_t fwrite_crypt __ARGS((buf_T buf UNUSED, char_u ptr, size_t len, FILE *fp));
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	106 static char_u read_string_decrypt __ARGS((buf_T buf UNUSED, FILE *fd, int len));
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	107 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	108 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	109 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	110 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	111 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	112 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	113 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	114 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	115 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	116 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	117 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	118
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	119 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	120 static char_u *u_save_line __ARGS((linenr_T));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	121
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	122 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	123
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	124 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	125 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	126 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	127 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	128 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	129
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	130 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	131
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	132 #if defined(U_DEBUG) \|\| defined(PROTO)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	133 /*
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	134 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	135 * looks wrong.
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	136 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	137 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	138 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	139 static int header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	140
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	141 static void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	142 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	143 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	144 u_header_T *exp_uh_alt_prev)
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 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	147
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	148 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	149 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	150 ++header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	151 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	152 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	153 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	154 return;
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 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	157 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	158 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	159 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	160 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	161
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	162 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	163 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	164 else
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	165 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	166 /* 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	167 if (uhp->uh_next.ptr != exp_uh_next)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	168 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	169 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	170 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	171 exp_uh_next, uhp->uh_next.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	172 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	173 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	174 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	175 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	176 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	177 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	178 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	179
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	180 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	181 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
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 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	184 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	185 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	186 break;
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 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	189
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	190 /* Check 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	191 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	192
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	193 /* 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	194 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415 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 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	197
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	198 void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	199 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	200 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	201 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	202 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	203 header_count = 0;
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 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	206
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	207 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	208 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	209 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	210 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	211 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	212 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	213 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	214 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	215 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	216 (long)header_count, (long)curbuf->b_u_numhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	217 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	218 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	219 #endif
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	220
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	221 /*
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	222 * Save the current line for both the "u" and "U" command.
7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	223 * Returns OK or FAIL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	224 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	226 u_save_cursor()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	227 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	228 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	229 (linenr_T)(curwin->w_cursor.lnum + 1)));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	230 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	231
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	232 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	233 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	234 * "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	235 * Returns FAIL when lines could not be saved, OK otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	236 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	237 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	238 u_save(top, bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	239 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	240 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	241 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	242 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	243
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	244 if (top > curbuf->b_ml.ml_line_count \|\|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	245 top >= bot \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	246 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	247
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	248 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	250
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	251 return (u_savecommon(top, bot, (linenr_T)0));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	252 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	253
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	254 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	255 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	256 * The line is replaced, so the new bottom line is lnum + 1.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	257 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 u_savesub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	264
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	266 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	267
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	268 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	269 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	270 * The line is inserted, so the new bottom line is lnum + 1.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	271 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273 u_inssub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279 return (u_savecommon(lnum - 1, lnum, lnum + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	281
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	282 /*
2154 7c8c7c95a865 First step in the Vim 7.3 branch. Changed version numbers. Bram Moolenaar <bram@zimbu.org> parents: 1534 diff changeset	283 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	284 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285 * becomes empty.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	287 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288 u_savedel(lnum, nlines)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	290 long nlines;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 return (u_savecommon(lnum - 1, lnum + nlines,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	296 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	297 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	298
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	299 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	300 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	301 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	302 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	303 int
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	304 undo_allowed()
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	305 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	306 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	307 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	308 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	309 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	310 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	311 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	312
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	313 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	314 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	315 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	316 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	317 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	318 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	319 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	320 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	321
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	322 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	323 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	324 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	325 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	326 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	327 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	329
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	330 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	331 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	332
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	333 static int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	334 u_savecommon(top, bot, newbot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	335 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	336 linenr_T newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	337 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	338 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	339 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	340 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	341 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	342 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	343 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	344 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	345
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	346 /* 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	347 * make all change commands fail. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	348 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	349 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	350
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	351 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	352 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	353 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	354 #ifdef FEAT_NETBEANS_INTG
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	355 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	356 * Netbeans defines areas that cannot be modified. Bail out here when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	357 * trying to change text in a guarded area.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	358 */
2210 8c6a66e2b3cc Add :nbstart and :nbclose. Bram Moolenaar <bram@vim.org> parents: 2154 diff changeset	359 if (netbeans_active())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	360 {
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	361 if (netbeans_is_guarded(top, bot))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	362 {
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	363 EMSG(_(e_guarded));
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	364 return FAIL;
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	365 }
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	366 if (curbuf->b_p_ro)
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	367 {
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	368 EMSG(_(e_nbreadonly));
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	369 return FAIL;
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	370 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	371 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	372 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	373
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	374 #ifdef FEAT_AUTOCMD
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	375 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	376 * Saving text for undo means we are going to make a change. Give a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	377 * warning for a read-only file before making the change, so that the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	378 * FileChangedRO event can replace the buffer with a read-write version
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	379 * (e.g., obtained from a source control system).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	380 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	381 change_warning(0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	382 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	383
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	384 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	385
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 == TRUE make a new header
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	388 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	389 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	390 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	391 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	392 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	393 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	394 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	395
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	396 if (p_ul >= 0)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	397 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	398 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	399 * 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	400 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	401 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	402 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	403 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	404 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	405 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	406 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	407 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	408 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	409 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	410 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	411
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	412 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	413 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	414 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	415 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	416 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	417 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	418 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	419 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	420 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	421 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	422
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	423 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	424 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	425 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	426 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	427 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	428 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	429
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	430 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	431 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	432 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	433 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	434 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	435 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	436 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	437 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	438 /* 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	439 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	440 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	441 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	442 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	443 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	444 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	445 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	446 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	447
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	448 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	449 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	450 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	451 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	452 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	453 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	454 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	455
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	456 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	457 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	458 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	459 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	460 {
2242 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 = 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	462 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	463 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	464 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	465 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	466 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	467 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	468 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	469 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	470 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	471 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	472
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	473 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	474 curbuf->b_u_seq_cur = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	475 uhp->uh_time = time(NULL);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	476 curbuf->b_u_seq_time = uhp->uh_time + 1;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	477
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	478 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	479 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	480 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	481 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	482 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	483 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	484 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	485 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	486 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	487 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	488
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	489 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	490 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	491 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	492
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	493 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	494 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	495 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	496 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	497 #endif
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	498
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	499 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	500 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	501 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	502 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	503 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	504 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	505 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	506 if (p_ul < 0) /* no undo at all */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	507 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	508
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	509 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	510 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	511 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	512 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	513 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	514 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	516 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	517 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	518 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	519 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	520 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	521 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	522 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	523 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	524 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	525 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	526
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	527 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	528 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	529 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	530 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	531 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	532 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	533 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	534 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	535 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	536 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	537 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	538 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	539
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	540 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	541 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	542 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	543 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	544 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	545 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	556 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	558 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	559 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	560 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	562 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	563 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	567 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	571 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 * With Amiga and MSDOS 16 bit we can't handle big undo's, because
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	593 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	595 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	596 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 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	598 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	599 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	600 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	601 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 }
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 (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	620 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	621 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	622 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	625 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	626 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	627 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	628 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	629 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	630 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	631 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	632 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	633 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	634 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	642 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	643 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	644 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	646 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	647 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	648
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	649 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	650 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	651 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	654 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	655 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	656 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	657 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	658 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	659 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	660 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	661 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	664 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	665
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	666 #if defined(FEAT_PERSISTENT_UNDO) \|\| defined(PROTO)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	667
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	668 # 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	669 # 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	670 # 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	671 # 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	672 # 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	673 # 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	674 # 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	675 # 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	676
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	677 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	678
2214 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 * 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	681 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	682 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	683 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	684 char_u *hash;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	685 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	686 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	687 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	688 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	689
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	690 sha256_start(&ctx);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	691 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	692 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	693 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	694 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	695 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	696 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	697 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	698
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	699 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	700 * 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	701 * 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	702 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	703 * 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	704 * 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	705 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	706 char_u *
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	707 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	708 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	709 int reading;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	710 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	711 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	712 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	713 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	714 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	715 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	716 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	717 struct stat st;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	718 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	719 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	720 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	721 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	722
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	723 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	724 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	725
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	726 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	727 /* 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	728 * 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	729 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	730 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	731 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	732
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	733 /* 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	734 * 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	735 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	736 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	737 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	738 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	739 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	740 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	741 /* 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	742 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	743 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	744 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	745 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	746 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	747 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	748 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	749 STRCAT(p, ".un~");
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 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	752 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	753 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	754 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	755 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	756 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	757 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	758 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	759 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	760 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	761 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	762 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	763 *p = '%';
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 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	766 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	767 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	768
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	769 /* 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	770 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	771 \|\| 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	772 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	773 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	774 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	775 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	776
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	777 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	778 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	779 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	780
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	781 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	782 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	783 char *msg;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	784 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	785 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	786 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	787 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	788
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	789 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	790 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	791 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	792 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	793 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	794 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	795
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	796 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	797 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	798 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	799 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	800 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	801 uep = nuep;
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 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	804 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	805
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	806 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	807 * Like fwrite() but crypt the bytes when 'key' is set.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	808 * Returns 1 if successful.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	809 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	810 static size_t
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	811 fwrite_crypt(buf, ptr, len, fp)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	812 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	813 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	814 size_t len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	815 FILE *fp;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	816 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	817 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	818 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	819 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	820 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	821
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	822 if (*buf->b_p_key == NUL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	823 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	824 if (len < 100)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	825 copy = small_buf; /* no malloc()/free() for short strings */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	826 else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	827 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	828 copy = lalloc(len, FALSE);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	829 if (copy == NULL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	830 return 0;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	831 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	832 crypt_encode(ptr, len, copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	833 i = fwrite(copy, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	834 if (copy != small_buf)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	835 vim_free(copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	836 return i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	837 #else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	838 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	839 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	840 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	841
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	842 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	843 * Read a string of length "len" from "fd".
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	844 * When 'key' is set decrypt the bytes.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	845 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	846 static char_u *
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	847 read_string_decrypt(buf, fd, len)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	848 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	849 FILE *fd;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	850 int len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	851 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	852 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	853
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	854 ptr = read_string(fd, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	855 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	856 if (ptr != NULL \|\| *buf->b_p_key != NUL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	857 crypt_decode(ptr, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	858 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	859 return ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	860 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	861
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	862 static int
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	863 serialize_header(fp, buf, hash)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	864 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	865 buf_T *buf;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	866 char_u *hash;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	867 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	868 int len;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	869
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	870 /* 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	871 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	872 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	873
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	874 /* 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	875 * 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	876 #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	877 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	878 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	879 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	880 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	881
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	882 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	883 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	884 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	885 return FAIL;
2245 4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more. Bram Moolenaar <bram@vim.org> parents: 2242 diff changeset	886 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	887 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	888 if (len != 1)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	889 {
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	890 crypt_pop_state();
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	891 return FAIL;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	892 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	893 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	894 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	895 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	896 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	897
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	898
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	899 /* 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	900 * 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	901 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	902 return FAIL;
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 /* buffer-specific data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	905 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	906 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	907 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	908 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	909 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	910 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	911 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	912
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	913 /* Undo structures header data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	914 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	915 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	916 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	917
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	918 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	919 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	920 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	921 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	922
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	923 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	924 }
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 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	927 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	928 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	929 buf_T *buf;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	930 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	931 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	932 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	933 u_entry_T *uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	934
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	935 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	936 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	937
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	938 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	939 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	940 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	941 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	942 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	943 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	944 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	945 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	946 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	947 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	948 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	949 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	950 /* 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	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 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	953 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	954 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	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
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	959 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	960 serialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	961 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	962 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	963 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	964
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	965 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	966 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	967 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	968 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	969 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	970 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	971 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	972 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	973 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	974 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	975
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	976 static u_header_T *
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	977 unserialize_uhp(fp, file_name)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	978 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	979 char_u *file_name;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	980 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	981 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	982 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	983 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	984 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	985 int error;
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 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	988 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	989 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	990 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	991 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	992 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	993 #endif
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	994 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	995 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	996 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	997 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	998 uhp->uh_seq = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	999 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1000 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1001 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	1002 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1003 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1004 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1005 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	1006 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1007 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	1008 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1009 (void)get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1010 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1011 uhp->uh_flags = get2c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1012 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	1013 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	1014 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1015 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	1016 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1017 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1018 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1019 unserialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1020 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1021 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1022 uhp->uh_time = get8ctime(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1023
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1024 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1025 last_uep = NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1026 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	1027 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1028 error = FALSE;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1029 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	1030 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1031 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1032 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1033 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1034 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1035 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1036 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1037 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1038 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1039 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1040 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1041 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	1042 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1043 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	1044 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1045 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1046 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1047
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1048 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1049 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1050
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1051 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1052 * 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	1053 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1054 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	1055 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	1056 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	1057 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	1058 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	1059 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1060 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1061 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1062
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1063 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	1064 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	1065 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	1066 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	1067 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	1068 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1069 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	1070 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	1071 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	1072 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	1073 return FAIL;
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 return OK;
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
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1078 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	1079 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	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 int *error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1082 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	1083 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1084 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1085 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	1086 char_u **array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1087 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1088 int line_len;
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 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	1091 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1092 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1093 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	1094 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1095 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	1096 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1097 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	1098 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	1099 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	1100 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	1101 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	1102 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1103 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	1104 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1105 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1106 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1107 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1108 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1109 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	1110 }
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	1111 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	1112 array = NULL;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1113 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	1114
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1115 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	1116 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1117 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	1118 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	1119 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	1120 else
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 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1123 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	1124 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1125 if (line == NULL)
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 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1128 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1129 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1130 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1131 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1132 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1133 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1134
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 * 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	1137 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1138 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1139 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	1140 pos_T pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1141 FILE *fp;
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 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	1144 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	1145 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1146 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	1147 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1148 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	1149 #endif
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
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 * 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	1154 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1155 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1156 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	1157 pos_T *pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1158 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1159 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1160 pos->lnum = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1161 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1162 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	1163 pos->col = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1164 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1165 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	1166 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1167 pos->coladd = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1168 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1169 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	1170 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1171 (void)get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1172 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1173 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1174
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1175 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1176 * 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	1177 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1178 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1179 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	1180 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1181 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1182 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1183 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	1184 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	1185 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	1186 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	1187 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1188
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1189 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1190 * 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	1191 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1192 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1193 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	1194 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1195 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1196 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1197 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	1198 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	1199 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	1200 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	1201 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1202
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1203 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1204 * 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	1205 * 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	1206 * pointers when reading. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1207 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1208 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	1209 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1210 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	1211 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1212 put_bytes(fp, (long_u)(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	1213 }
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 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1216 * 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	1217 * 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	1218 * 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	1219 * "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	1220 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1221 * "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	1222 * "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	1223 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1224 void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1225 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	1226 char_u *name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1227 int forceit;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1228 buf_T *buf;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1229 char_u *hash;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1230 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1231 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	1232 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1233 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1234 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1235 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	1236 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1237 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1238 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1239 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1240 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	1241 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1242 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	1243 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	1244 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	1245 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1246 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1247 int do_crypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1248 #endif
2231 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 if (name == NULL)
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 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	1253 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	1254 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1255 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	1256 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1257 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1258 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	1259 _("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	1260 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1261 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1262 return;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1263 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1264 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1265 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1266 file_name = name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1267
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1268 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1269 * 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	1270 * 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	1271 * 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	1272 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1273 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1274 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	1275 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1276 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1277 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	1278 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1279 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	1280 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	1281 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1282 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1283 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	1284 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1285 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1286 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1287 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1288
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1289 /* 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	1290 perm = perm & 0777;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1291
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1292 /* 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	1293 * 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	1294 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	1295 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1296 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	1297 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1298 /* 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	1299 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	1300 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1301 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1302 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	1303 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1304 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	1305 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1306 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	1307 _("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	1308 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	1309 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	1310 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1311 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1312 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1313 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1314 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1315 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1316 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	1317 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1318
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1319 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	1320 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1321 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	1322 \|\| 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	1323 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1324 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	1325 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1326 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	1327 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1328 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1329 _("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	1330 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	1331 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	1332 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1333 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1334 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1335 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1336 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1337 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1338 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	1339 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1340
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1341 /* 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	1342 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1343 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	1344 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1345 if (p_verbose > 0)
2262 771f21e35ec5 Minor typo and docs update. Bram Moolenaar <bram@vim.org> parents: 2251 diff changeset	1346 verb_msg((char_u *)_("Skipping undo file write, nothing to undo"));
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1347 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1348 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1349
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1350 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	1351 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	1352 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1353 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1354 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	1355 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1356 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1357 (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	1358 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	1359 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1360 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1361 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	1362 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1363 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1364
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1365 #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	1366 /* 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	1367 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1368 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1369
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1370 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1371 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1372 * 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	1373 * 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	1374 * 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	1375 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1376 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	1377 && 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	1378 # 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	1379 && 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	1380 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1381 )
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1382 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	1383 # ifdef HAVE_SELINUX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1384 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	1385 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	1386 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1387 #endif
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 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	1390 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1391 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1392 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	1393 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1394 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	1395 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1396 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1397
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1398 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1399 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1400
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1401 /*
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1402 * Write the header.
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1403 */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1404 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	1405 goto write_error;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1406 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1407 if (*buf->b_p_key)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1408 do_crypt = TRUE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1409 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1410
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1411 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1412 * 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	1413 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1414 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1415 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	1416 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1417 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1418 /* 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	1419 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	1420 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1421 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	1422 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1423 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1424 #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	1425 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	1426 goto write_error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1427 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1428
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1429 /* 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	1430 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	1431 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	1432 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	1433 && 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	1434 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	1435 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	1436 && 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	1437 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	1438 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	1439 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	1440 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1441 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	1442 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1443
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1444 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	1445 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1446 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1447 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	1448 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	1449 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	1450 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1451
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1452 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1453 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1454 if (!write_ok)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1455 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	1456
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1457 #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	1458 /* 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	1459 * 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	1460 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	1461 (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	1462 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1463 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1464 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	1465 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1466 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	1467
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1468 /* 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	1469 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	1470 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	1471 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1472 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1473
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1474 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1475 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1476 if (do_crypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1477 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1478 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1479 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	1480 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	1481 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1482
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1483 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1484 * 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	1485 * 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	1486 * 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	1487 * 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	1488 * "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	1489 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1490 void
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1491 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	1492 char_u *name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1493 char_u *hash;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1494 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	1495 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1496 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	1497 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1498 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	1499 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	1500 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	1501 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	1502 linenr_T line_count;
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	1503 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	1504 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	1505 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	1506 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	1507 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	1508 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	1509 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1510 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1511 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	1512 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	1513 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	1514 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	1515 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1516 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	1517 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1518 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1519 struct stat st_orig;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1520 struct stat st_undo;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1521 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1522 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1523 int do_decrypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1524 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1525
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1526 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1527 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1528 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	1529 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	1530 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1531
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1532 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1533 /* 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	1534 * owner of the text file. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1535 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	1536 && 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	1537 && 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	1538 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1539 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1540 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1541 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1542 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	1543 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1544 verbose_leave();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1545 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1546 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1547 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1548 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1549 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1550 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1551 file_name = name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1552
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1553 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	1554 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1555 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1556 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	1557 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1558 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1559
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1560 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	1561 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1562 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1563 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	1564 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	1565 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1566 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1567
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1568 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1569 * 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	1570 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1571 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	1572 \|\| 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	1573 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1574 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	1575 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1576 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1577 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	1578 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	1579 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1580 #ifdef FEAT_CRYPT
2251 646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1581 if (*curbuf->b_p_key == NUL)
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1582 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1583 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"),
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1584 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1585 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1586 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1587 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	1588 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1589 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	1590 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	1591 }
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1592 do_decrypt = TRUE;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1593 #else
2251 646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1594 EMSG2(_("E827: Undo file is encrypted: %s"), 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	1595 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	1596 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1597 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1598 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	1599 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1600 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	1601 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1602 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1603
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1604 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	1605 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1606 corruption_error("hash", file_name);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1607 goto error;
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1608 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1609 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	1610 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	1611 \|\| 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	1612 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1613 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	1614 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1615 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	1616 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1617 give_warning((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1618 _("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	1619 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	1620 verbose_leave();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1621 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1622 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1623 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1624
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1625 /* 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	1626 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	1627 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	1628 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1629 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	1630 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	1631 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	1632 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	1633 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	1634 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1635 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	1636 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1637 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1638
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1639 /* 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	1640 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	1641 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	1642 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	1643 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	1644 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	1645 seq_cur = get4c(fp);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1646 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	1647
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1648 /* 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	1649 * 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	1650 * 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	1651 * 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	1652 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1653 {
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1654 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	1655 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	1656 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1657 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1658 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1659
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1660 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	1661 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1662 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1663 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1664 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	1665 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1666 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1667
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1668 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	1669 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1670 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1671 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1672 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1673
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1674 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1675 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1676 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1677 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1678 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1679 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	1680 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1681 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	1682 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1683 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1684
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1685 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1686 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	1687 (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	1688 # 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	1689 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1690 # 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	1691 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1692
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1693 /* 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	1694 * 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	1695 * 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	1696 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	1697 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1698 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	1699 if (uhp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1700 continue;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1701 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	1702 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	1703 && 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	1704 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1705 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	1706 goto error;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1707 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1708 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	1709 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	1710 && 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	1711 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1712 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	1713 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1714 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1715 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1716 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	1717 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	1718 && 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	1719 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1720 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	1721 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1722 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1723 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1724 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	1725 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	1726 && 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	1727 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1728 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	1729 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1730 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1731 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1732 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	1733 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	1734 && 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	1735 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1736 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	1737 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1738 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1739 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1740 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	1741 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1742 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	1743 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1744 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1745 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	1746 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1747 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	1748 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1749 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1750 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	1751 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1752 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	1753 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1754 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1755 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1756
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1757 /* 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	1758 * 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	1759 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	1760 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	1761 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	1762 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	1763 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	1764 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	1765 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	1766 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	1767 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	1768 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	1769 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	1770
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1771 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	1772 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	1773
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1774 #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	1775 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	1776 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	1777 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	1778 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	1779 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1780 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1781
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1782 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1783 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	1784 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1785
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1786 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1787 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	1788 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	1789 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1790 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	1791 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1792 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	1793 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	1794 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1795
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1796 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1797 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1798 if (do_decrypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1799 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1800 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1801 if (fp != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1802 fclose(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1803 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	1804 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	1805 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1806 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1807
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1808 #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	1809
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1810
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1811 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1812 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1813 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1814 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1815 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1816 u_undo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1817 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1818 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1819 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1820 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1821 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1822 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1823 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1824 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1825 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1826 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1827 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1828 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1829
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1830 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1831 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1832 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1833 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1834 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1835 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1836
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1837 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1838 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1839 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1840 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1841 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1842 u_redo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1843 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1844 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1845 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1846 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1847 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1848 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1849
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1850 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1851 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1852 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1853 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1854 u_doit(startcount)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1855 int startcount;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1856 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1857 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1858
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	1859 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1860 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1861
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1862 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: 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)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1865 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1866 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1867 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1868 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1869 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1870 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1871 curbuf->b_u_curhead = curbuf->b_u_newhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1872 else if (p_ul > 0) /* multi level undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1873 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1874 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1875 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1876 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1877 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1878 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1879 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1880 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1881 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1882 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1883 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1884 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1885 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1886 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1887 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1888
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1889 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1890 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1891 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1892 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1893 if (curbuf->b_u_curhead == NULL \|\| p_ul <= 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1894 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1895 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1896 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1897 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1898 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1899 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1900 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1901 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1902 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1903
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1904 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1905
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1906 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1907 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1908 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1909 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	1910 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1911 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1912 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1913 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1914 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1915
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1916 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1917 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1918 * 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	1919 * 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	1920 * seconds.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1921 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1922 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1923 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1924 void
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1925 undo_time(step, sec, absolute)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1926 long step;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1927 int sec;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1928 int absolute;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1929 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1930 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1931 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1932 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1933 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1934 long val;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1935 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1936 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1937 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1938 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1939 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1940 int dosec = sec;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1941 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	1942 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1943
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1944 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1945 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1946 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	1947
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1948 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1949 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1950 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1951 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1952
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1953 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1954 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1955 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1956 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	1957 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1958 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1959 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1960 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1961 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1962 /* When doing computations with time_t subtract starttime, because
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1963 * time_t converted to a long may result in a wrong number. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1964 if (sec)
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1965 target = (long)(curbuf->b_u_seq_time - starttime) + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1966 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1967 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1968 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1969 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1970 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1971 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1972 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1973 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1974 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1975 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1976 if (sec)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	1977 closest = (long)(time(NULL) - starttime + 1);
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1978 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1979 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1980 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1981 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1982 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1983 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1984 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1985 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1986
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1987 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1988 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1989 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1990 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1991 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1992 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1993 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	1994 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1995 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1996 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	1997 /* 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	1998 * 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	1999 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2000 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2001 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2002 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2003
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2004 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2005 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2006 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2007 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2008
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2009 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2010 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2011 uhp->uh_walk = mark;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2012 val = (long)(dosec ? (uhp->uh_time - starttime) : uhp->uh_seq);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2013
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2014 if (round == 1)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2015 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2016 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2017 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2018 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2019 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2020 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2021 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2022 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2023 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2024 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2025 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2026 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2027 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2028 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2029 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2030 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2031 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2032 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2033 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2034 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2035 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2036 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2037 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2038 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2039
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2040 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2041 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2042 if (target == val && !dosec)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2043 break;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2044
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2045 /* 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	2046 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	2047 && 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	2048 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2049
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2050 /* 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	2051 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	2052 && 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	2053 && 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	2054 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2055
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2056 /* 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	2057 * 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	2058 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	2059 && 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	2060 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2061 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2062 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2063 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2064 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	2065 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2066 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2067
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2068 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2069 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2070 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2071 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	2072 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	2073 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2074 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2075 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2076 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2077 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2078
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2079 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2080 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2081
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2082 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2083 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2084 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2085 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2086 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2087
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2088 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2089 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2090 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2091 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2092 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2093 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2094 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2095 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2096
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2097 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2098 dosec = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2099 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2100 above = TRUE; /* stop above the header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2101 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2102
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2103 /* 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	2104 if (uhp != NULL)
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 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2108 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2109 for (;;)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2110 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2111 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2112 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2113 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2114 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2115 uhp = uhp->uh_next.ptr;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2116 if (uhp == NULL \|\| uhp->uh_walk != mark
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2117 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2118 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2119 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2120 u_undoredo(TRUE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2121 uhp->uh_walk = nomark; /* don't go back down here */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2122 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2123
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2124 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2125 * And now go down the tree (redo), branching off where needed.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2126 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2127 uhp = curbuf->b_u_curhead;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2128 while (uhp != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2129 {
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2130 /* 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	2131 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	2132 && 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	2133 uhp = uhp->uh_alt_prev.ptr;
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2134
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2135 /* Find the last branch with a mark, that's the one. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2136 last = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2137 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	2138 && 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	2139 last = last->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2140 if (last != uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2141 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2142 /* Make the used branch the first entry in the list of
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2143 * 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	2144 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	2145 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	2146 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	2147 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	2148 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	2149 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	2150 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	2151 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	2152 uhp->uh_alt_prev.ptr = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2153
2234 3b241fd8d7c0 updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2233 diff changeset	2154 if (curbuf->b_u_oldhead == uhp)
3b241fd8d7c0 updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2233 diff changeset	2155 curbuf->b_u_oldhead = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2156 uhp = last;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2157 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	2158 uhp->uh_next.ptr->uh_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2159 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2160 curbuf->b_u_curhead = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2161
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2162 if (uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2163 break; /* must have reached the target */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2164
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2165 /* Stop when going backwards in time and didn't find the exact
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2166 * header we were looking for. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2167 if (uhp->uh_seq == target && above)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2168 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2169 curbuf->b_u_seq_cur = target - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2170 break;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2171 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2172
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2173 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2174
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2175 /* Advance "curhead" to below the header we last used. If it
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2176 * 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	2177 if (uhp->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2178 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	2179 curbuf->b_u_curhead = uhp->uh_prev.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2180 did_undo = FALSE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2181
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2182 if (uhp->uh_seq == target) /* found it! */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2183 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2184
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2185 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2186 if (uhp == NULL \|\| uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2187 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2188 /* Need to redo more but can't find it... */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2189 EMSG2(_(e_intern2), "undo_time()");
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2190 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2191 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2192 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2193 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2194 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2195 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2196
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2197 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2198 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2199 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2200 * 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	2201 * 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	2202 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2203 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2204 * 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	2205 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2206 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2207 u_undoredo(undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2208 int undo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2209 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2210 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2211 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2212 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2213 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2214 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2215 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2216 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2217 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2218 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2219 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2220 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2221 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2222 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2223 visualinfo_T visualinfo;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2224 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2225 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2226 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2227
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2228 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2229 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2230 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2231 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2232 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2233 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2234 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2235
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2236 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2237 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2238 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2239 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2240 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2241 visualinfo = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2242 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2243 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2244 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2245 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2246 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2247
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2248 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2249 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2250 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2251 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2252 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2253 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2254 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2255 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2256 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2257 EMSG(_("E438: u_undo: line numbers wrong"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2258 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2259 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2260 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2261
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2262 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2263 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2264
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2265 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2266 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2267 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2268 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2269 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2270 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2271 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2272 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2273 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2274 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2275 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2276 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2277 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2278 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2279 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2280 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2281 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2282 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2283 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2284 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2285 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2286 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2287 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2288 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2289 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2290 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2291 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2292 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2293 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2294 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2295 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2296
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2297 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2298
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2299 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2300 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2301 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2302 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	2303 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2304 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2305 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2306 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2307 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2308 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2309 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2310 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2311 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2312 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2313 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2314 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2315 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2316 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2317 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2318 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2319 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2320 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2321 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2322 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2323 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2324 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2325 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2326 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2327 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2328 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2329 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2330 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2331 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2332 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2333
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2334 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2335 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2336 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2337 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2338 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2339 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2340 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2341 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2342 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2343 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2344 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2345 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2346 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	2347 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2348 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2349 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2350 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2351
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2352 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2353 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2354 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2355 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2356 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2357 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2358 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2359 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2360 curbuf->b_op_end.lnum += newsize - oldsize;
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 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2364
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2365 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2366 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2367 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2368 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2369 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2370 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2371 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2372
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2373 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2374 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2375 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2376 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2377 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2378
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2379 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2380 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2381 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2382 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2383 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2384 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2385 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2386
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2387 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2388 curhead->uh_flags = new_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2389 if ((old_flags & UH_EMPTYBUF) && bufempty())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2390 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2391 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2392 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2393 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2394 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2395 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2396 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2397 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2398 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2399
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2400 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2401 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2402 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2403 for (i = 0; i < NMARKS; ++i)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2404 if (curhead->uh_namedm[i].lnum != 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2405 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2406 curbuf->b_namedm[i] = curhead->uh_namedm[i];
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2407 curhead->uh_namedm[i] = namedm[i];
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2408 }
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2409 #ifdef FEAT_VISUAL
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2410 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2411 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2412 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2413 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2414 }
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2415 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2416
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2417 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2418 * 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	2419 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2420 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2421 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2422 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2423 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2424 --curwin->w_cursor.lnum;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2425 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2426 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2427 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2428 #ifdef FEAT_VIRTUALEDIT
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2429 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2430 coladvance((colnr_T)curhead->uh_cursor_vcol);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2431 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2432 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2433 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2434 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2435 else if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2436 beginline(BL_SOL \| BL_FIX);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2437 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2438 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2439 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2440 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2441 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2442 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2443 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2444 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2445 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2446 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2447 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2448
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2449 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2450 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2451
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2452 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2453 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2454 if (undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2455 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2456 * work we compute this as being just above the just undone change. */
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2457 --curbuf->b_u_seq_cur;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2458
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2459 /* 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	2460 * the undone/redone change. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2461 curbuf->b_u_seq_time = curhead->uh_time;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2462 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2463 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2464 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2465 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2466
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2467 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2468 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2469 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2470 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2471 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2472 static void
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2473 u_undo_end(did_undo, absolute)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2474 int did_undo; /* just did an undo */
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2475 int absolute; /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2476 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2477 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2478 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2479 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2480
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2481 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2482 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2483 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2484 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2485
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2486 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2487 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2488 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2489
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2490 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2491 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2492
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2493 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2494 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2495 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2496 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2497 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2498 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2499 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2500 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2501 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2502 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2503 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2504 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2505 if (u_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2506 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2507 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2508 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2509 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2510
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2511 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2512 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2513 /* 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	2514 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2515 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2516 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2517 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2518 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2519 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2520 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2521 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2522 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2523 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2524 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2525 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2526
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2527 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2528 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2529 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2530 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2531
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2532 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2533 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2534 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2535 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2536 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2537 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2538 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2539
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2540 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2541 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2542 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2543 void
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2544 u_sync(force)
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2545 int force; /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2546 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2547 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2548 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2549 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2550 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2551 if (im_is_preediting())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2552 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2553 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2554 if (p_ul < 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2555 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2556 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2557 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2558 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2559 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2560 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2561 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2562
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2563 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2564 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2565 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2566 void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2567 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	2568 exarg_T *eap UNUSED;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2569 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2570 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2571 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2572 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2573 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2574 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2575 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2576
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2577 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2578 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2579 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2580 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2581 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2582 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2583 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2584 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2585
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2586 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2587 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2588 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2589 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2590 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2591 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2592 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2593 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2594 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2595 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2596 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2597 uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2598 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2599 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2600
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2601 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2602
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2603 /* 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	2604 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	2605 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2606 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2607 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2608 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2609 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2610
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2611 /* 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	2612 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	2613 && 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	2614 && 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	2615 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2616
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2617 /* 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	2618 * 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	2619 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	2620 && 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	2621 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2622 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2623 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2624 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2625 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2626
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2627 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2628 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2629 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2630 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	2631 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	2632 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2633 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2634 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2635 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2636 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2637 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2638 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2639 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2640
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2641 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2642 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2643 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2644 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2645 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2646
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2647 msg_start();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2648 msg_puts_attr((char_u *)_("number changes time"), hl_attr(HLF_T));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2649 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2650 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2651 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2652 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2653 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2654 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2655 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2656 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2657
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2658 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2659 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2660 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2661
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2662 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2663 * 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	2664 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2665 static void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2666 u_add_time(buf, buflen, tt)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2667 char_u *buf;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2668 size_t buflen;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2669 time_t tt;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2670 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2671 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2672 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2673
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2674 if (time(NULL) - tt >= 100)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2675 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2676 curtime = localtime(&tt);
810 9f345c48220b updated for version 7.0c vimboss parents: 798 diff changeset	2677 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2678 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2679 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2680 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	2681 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2682 (long)(time(NULL) - tt));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2683 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2684
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2685 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2686 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2687 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2688 void
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2689 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	2690 exarg_T *eap UNUSED;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2691 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2692 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2693 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2694 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2695 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2696 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2697 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2698 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2699 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2700 return; /* already unsynced */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2701 if (p_ul < 0)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2702 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2703 else
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2704 {
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2705 /* Go back to the last entry */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2706 curbuf->b_u_curhead = curbuf->b_u_newhead;
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2707 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2708 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2709 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2710
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2711 /*
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2712 * Called after writing the file and setting b_changed to FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2713 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2714 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2715 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2716 u_unchanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2717 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2718 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2719 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2720 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2721 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2722
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2723 static void
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2724 u_unch_branch(uhp)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2725 u_header_T *uhp;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2726 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2727 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2728
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2729 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2730 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2731 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	2732 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	2733 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2734 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2735 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2736
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2737 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2738 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2739 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2740 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2741 static u_entry_T *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2742 u_get_headentry()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2743 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2744 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2745 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2746 EMSG(_("E439: undo list corrupt"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2747 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2748 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2749 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2750 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2751
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2752 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2753 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2754 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2755 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2756 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2757 u_getbot()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2758 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2759 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2760 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2761
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2762 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2763 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2764 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2765
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2766 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2767 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2768 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2769 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2770 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2771 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2772 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2773 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2774 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2775 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2776 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2777 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2778 EMSG(_("E440: undo line missing"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2779 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2780 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2781 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2782 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2783 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2784
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2785 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2786 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2787
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2788 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2789 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2790
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2791 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2792 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2793 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2794 static void
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2795 u_freeheader(buf, uhp, uhpp)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2796 buf_T *buf;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2797 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2798 u_header_T *uhpp; / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2799 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2800 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2801
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2802 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2803 * 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	2804 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	2805 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2806
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2807 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	2808 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2809
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2810 /* 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	2811 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	2812 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2813 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2814 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2815
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2816 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	2817 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2818 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2819 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	2820 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	2821 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2822
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2823 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2824 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2825
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2826 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2827 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2828 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2829 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2830 u_freebranch(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2831 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2832 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2833 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2834 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2835 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2836
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2837 /* 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	2838 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2839 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2840 {
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2841 u_freeheader(buf, uhp, uhpp);
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2842 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2843 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	2844
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2845 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	2846 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2847
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2848 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2849 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2850 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2851 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2852 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	2853 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	2854 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2855 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2856 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2857 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2858
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2859 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2860 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2861 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2862 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2863 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2864 u_freeentries(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2865 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2866 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2867 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2868 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2869 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2870
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2871 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2872 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2873 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2874 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2875 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2876 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2877 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2878
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2879 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2880 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2881 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2882 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2883 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2884
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2885 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2886 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2887 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2888 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2889 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2890 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2891
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2892 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2893 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2894 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2895 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2896 u_freeentry(uep, n)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2897 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2898 long n;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2899 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2900 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2901 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	2902 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2903 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2904 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2905 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2906 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2907 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2908
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2909 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2910 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2911 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2912 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2913 u_clearall(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2914 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2915 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2916 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2917 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2918 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2919 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2920 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2921 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2922
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2923 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2924 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2925 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2926 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2927 u_saveline(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2928 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2929 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2930 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2931 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	2932 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2933 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2934 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2935 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2936 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2937 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2938 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2939 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2940 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2941 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2942 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2943
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2944 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2945 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2946 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2947 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2948 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2949 u_clearline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2950 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2951 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2952 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2953 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2954 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2955 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2956 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2957 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2958
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2959 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2960 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2961 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2962 * We also allow the cursor to be in another line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2963 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2964 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2965 u_undoline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2966 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2967 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2968 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2969
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2970 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2971 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2972
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2973 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2974 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2975 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2976 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2977 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2978 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2979
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	2980 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2981 if (u_savecommon(curbuf->b_u_line_lnum - 1,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2982 curbuf->b_u_line_lnum + 1, (linenr_T)0) == FAIL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2983 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2984 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2985 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2986 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2987 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2988 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2989 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2990 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2991 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	2992 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2993 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2994
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2995 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2996 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2997 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2998 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2999 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3000 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3001 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3002
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3003 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3004 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3005 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3006 void
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3007 u_blockfree(buf)
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3008 buf_T *buf;
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3009 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3010 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3011 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	3012 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3013 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3014
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3015 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3016 * 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	3017 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3018 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3019 static char_u *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3020 u_save_line(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3021 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3022 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3023 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3024 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3025
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3026 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3027 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3028 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3029 * "nofile" and "scratch" type buffers are considered to always be unchanged.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3030 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3031 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3032 bufIsChanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3033 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3034 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3035 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3036 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3037 !bt_dontwrite(buf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3038 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3039 (buf->b_changed \|\| file_ff_differs(buf));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3040 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3041
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3042 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3043 curbufIsChanged()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3044 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3045 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3046 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3047 !bt_dontwrite(curbuf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3048 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3049 (curbuf->b_changed \|\| file_ff_differs(curbuf));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3050 }

Mercurial > vim

annotate src/undo.c @ 2267:c08f91142c41 vim73