vim: src/regexp.c annotate

annotate src/regexp.c @ 32043:6095218c9056 v9.0.1353

patch 9.0.1353: too many "else if" statements to handle option values Commit: https://github.com/vim/vim/commit/6d611de58c8e324491415da8e79c6bd3faa3e848 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Sat Feb 25 11:59:33 2023 +0000 patch 9.0.1353: too many "else if" statements to handle option values Problem: Too many "else if" statements to handle option values. Solution: Add more functions to handle option value changes. (Yegappan Lakshmanan, closes #12058)

author	Bram Moolenaar <Bram@vim.org>
date	Sat, 25 Feb 2023 13:00:05 +0100
parents	579c846086eb
children	f3987fde6dea

rev	line source
10042 4aead6a9b7a9 commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47 Christian Brabandt <cb@256bit.org> parents: 9723 diff changeset	1 /* vi:set ts=8 sts=4 sw=4 noet:
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3 * Handling of regular expressions: vim_regcomp(), vim_regexec(), vim_regsub()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	4 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	5
16395 a849fe2a4b21 patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	6 // By default: do not create debugging logs or files related to regular
a849fe2a4b21 patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	7 // expressions, even when compiling with -DDEBUG.
a849fe2a4b21 patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	8 // Uncomment the second line to get the regexp debugging.
a849fe2a4b21 patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	9 #undef DEBUG
a849fe2a4b21 patch 8.1.1202: always get regexp debugging logs when building with -DDEBUG Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	10 // #define DEBUG
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	11
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	12 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	13
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	14 #ifdef DEBUG
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	15 // show/save debugging data when BT engine is used
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	16 # define BT_REGEXP_DUMP
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	17 // save the debugging data to a file instead of displaying it
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	18 # define BT_REGEXP_LOG
4460 fe8a0a6a1c2a updated for version 7.3.978 Bram Moolenaar <bram@vim.org> parents: 4444 diff changeset	19 # define BT_REGEXP_DEBUG_LOG
fe8a0a6a1c2a updated for version 7.3.978 Bram Moolenaar <bram@vim.org> parents: 4444 diff changeset	20 # define BT_REGEXP_DEBUG_LOG_NAME "bt_regexp_debug.log"
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	21 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	22
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	23 #ifdef FEAT_RELTIME
29245 b12fd2b3be63 patch 8.2.5141: using "volatile int" in a signal handler might be wrong Bram Moolenaar <Bram@vim.org> parents: 29220 diff changeset	24 static sig_atomic_t dummy_timeout_flag = 0;
b12fd2b3be63 patch 8.2.5141: using "volatile int" in a signal handler might be wrong Bram Moolenaar <Bram@vim.org> parents: 29220 diff changeset	25 static volatile sig_atomic_t *timeout_flag = &dummy_timeout_flag;
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	26 #endif
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	27
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	28 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	29 * Magic characters have a special meaning, they don't match literally.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	30 * Magic characters are negative. This separates them from literal characters
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	31 * (possibly multi-byte). Only ASCII characters can be Magic.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	32 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	33 #define Magic(x) ((int)(x) - 256)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	34 #define un_Magic(x) ((x) + 256)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	35 #define is_Magic(x) ((x) < 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	36
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	37 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	38 no_Magic(int x)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	39 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	40 if (is_Magic(x))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	41 return un_Magic(x);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	42 return x;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	43 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	44
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	45 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	46 toggle_Magic(int x)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	47 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	48 if (is_Magic(x))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	49 return un_Magic(x);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	50 return Magic(x);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	51 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	52
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	53 #ifdef FEAT_RELTIME
29888 a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	54 static int timeout_nesting = 0;
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	55
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	56 /*
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	57 * Start a timer that will cause the regexp to abort after "msec".
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	58 * This doesn't work well recursively. In case it happens anyway, the first
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	59 * set timeout will prevail, nested ones are ignored.
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	60 * The caller must make sure there is a matching disable_regexp_timeout() call!
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	61 */
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	62 void
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	63 init_regexp_timeout(long msec)
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	64 {
29888 a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	65 if (timeout_nesting == 0)
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	66 timeout_flag = start_timeout(msec);
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	67 ++timeout_nesting;
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	68 }
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	69
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	70 void
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	71 disable_regexp_timeout(void)
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	72 {
29888 a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	73 if (timeout_nesting == 0)
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	74 iemsg("disable_regexp_timeout() called without active timer");
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	75 else if (--timeout_nesting == 0)
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	76 {
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	77 stop_timeout();
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	78 timeout_flag = &dummy_timeout_flag;
a63d3a0e9aba patch 9.0.0282: a nested timout stops the previous timeout Bram Moolenaar <Bram@vim.org> parents: 29527 diff changeset	79 }
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	80 }
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	81 #endif
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	82
30355 c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	83 #if defined(FEAT_EVAL) \|\| defined(PROTO)
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	84 # ifdef FEAT_RELTIME
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	85 static sig_atomic_t *saved_timeout_flag;
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	86 # endif
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	87
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	88 /*
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	89 * Used at the debug prompt: disable the timeout so that expression evaluation
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	90 * can used patterns.
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	91 * Must be followed by calling restore_timeout_for_debugging().
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	92 */
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	93 void
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	94 save_timeout_for_debugging(void)
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	95 {
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	96 # ifdef FEAT_RELTIME
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	97 saved_timeout_flag = (sig_atomic_t *)timeout_flag;
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	98 timeout_flag = &dummy_timeout_flag;
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	99 # endif
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	100 }
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	101
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	102 void
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	103 restore_timeout_for_debugging(void)
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	104 {
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	105 # ifdef FEAT_RELTIME
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	106 timeout_flag = saved_timeout_flag;
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	107 # endif
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	108 }
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	109 #endif
c0be6563fa39 patch 9.0.0513: may not be able to use a pattern ad the debug prompt Bram Moolenaar <Bram@vim.org> parents: 30289 diff changeset	110
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	111 /*
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	112 * The first byte of the BT regexp internal "program" is actually this magic
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	113 * number; the start node begins in the second byte. It's used to catch the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	114 * most severe mutilation of the program by the caller.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	115 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	116
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	117 #define REGMAGIC 0234
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	118
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	119 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	120 * Utility definitions.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	121 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	122 #define UCHARAT(p) ((int)(char_u )(p))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	123
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	124 // Used for an error (down from) vim_regcomp(): give the error message, set
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	125 // rc_did_emsg and return NULL
15470 55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	126 #define EMSG_RET_NULL(m) return (emsg((m)), rc_did_emsg = TRUE, (void *)NULL)
55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	127 #define IEMSG_RET_NULL(m) return (iemsg((m)), rc_did_emsg = TRUE, (void *)NULL)
55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	128 #define EMSG_RET_FAIL(m) return (emsg((m)), rc_did_emsg = TRUE, FAIL)
55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	129 #define EMSG2_RET_NULL(m, c) return (semsg((const char )(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, (void )NULL)
15480 bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	130 #define EMSG3_RET_NULL(m, c, a) return (semsg((const char )(m), (c) ? "" : "\\", (a)), rc_did_emsg = TRUE, (void )NULL)
15470 55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	131 #define EMSG2_RET_FAIL(m, c) return (semsg((const char *)(m), (c) ? "" : "\\"), rc_did_emsg = TRUE, FAIL)
26913 d4e61d61afd9 patch 8.2.3985: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26841 diff changeset	132 #define EMSG_ONE_RET_NULL EMSG2_RET_NULL(_(e_invalid_item_in_str_brackets), reg_magic == MAGIC_ALL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	133
10359 66f1b5bf3fa6 commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f Christian Brabandt <cb@256bit.org> parents: 10245 diff changeset	134
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	135 #define MAX_LIMIT (32767L << 16L)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	136
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	137 #define NOT_MULTI 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	138 #define MULTI_ONE 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	139 #define MULTI_MULT 2
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	140
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	141 // return values for regmatch()
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	142 #define RA_FAIL 1 // something failed, abort
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	143 #define RA_CONT 2 // continue in inner loop
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	144 #define RA_BREAK 3 // break inner loop
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	145 #define RA_MATCH 4 // successful match
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	146 #define RA_NOMATCH 5 // didn't match
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	147
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	148 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	149 * Return NOT_MULTI if c is not a "multi" operator.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	150 * Return MULTI_ONE if c is a single "multi" operator.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	151 * Return MULTI_MULT if c is a multi "multi" operator.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	152 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	153 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	154 re_multi_type(int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	155 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	156 if (c == Magic('@') \|\| c == Magic('=') \|\| c == Magic('?'))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	157 return MULTI_ONE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	158 if (c == Magic('*') \|\| c == Magic('+') \|\| c == Magic('{'))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	159 return MULTI_MULT;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	160 return NOT_MULTI;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	161 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	162
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 308 diff changeset	163 static char_u *reg_prev_sub = NULL;
6c62b9b939bd updated for version 7.0093 vimboss parents: 308 diff changeset	164
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	165 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	166 * REGEXP_INRANGE contains all characters which are always special in a []
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	167 * range after '\'.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	168 * REGEXP_ABBR contains all characters which act as abbreviations after '\'.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	169 * These are:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	170 * \n - New line (NL).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	171 * \r - Carriage Return (CR).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	172 * \t - Tab (TAB).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	173 * \e - Escape (ESC).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	174 * \b - Backspace (Ctrl_H).
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	175 * \d - Character code in decimal, eg \d123
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	176 * \o - Character code in octal, eg \o80
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	177 * \x - Character code in hex, eg \x4a
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	178 * \u - Multibyte character code, eg \u20ac
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	179 * \U - Long multibyte character code, eg \U12345678
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	180 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	181 static char_u REGEXP_INRANGE[] = "]^-n\\";
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	182 static char_u REGEXP_ABBR[] = "nrtebdoxuU";
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	183
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	184 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	185 * Translate '\x' to its control character, except "\n", which is Magic.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	186 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	187 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	188 backslash_trans(int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	189 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	190 switch (c)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	191 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	192 case 'r': return CAR;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	193 case 't': return TAB;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	194 case 'e': return ESC;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	195 case 'b': return BS;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	196 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	197 return c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	198 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	199
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	200 /*
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	201 * Check for a character class name "[:name:]". "pp" points to the '['.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	202 * Returns one of the CLASS_ items. CLASS_NONE means that no item was
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	203 * recognized. Otherwise "pp" is advanced to after the item.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	204 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	205 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	206 get_char_class(char_u **pp)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	207 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	208 static const char *(class_names[]) =
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	209 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	210 "alnum:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	211 #define CLASS_ALNUM 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	212 "alpha:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	213 #define CLASS_ALPHA 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	214 "blank:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	215 #define CLASS_BLANK 2
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	216 "cntrl:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	217 #define CLASS_CNTRL 3
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	218 "digit:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	219 #define CLASS_DIGIT 4
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	220 "graph:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	221 #define CLASS_GRAPH 5
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	222 "lower:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	223 #define CLASS_LOWER 6
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	224 "print:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 #define CLASS_PRINT 7
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	226 "punct:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	227 #define CLASS_PUNCT 8
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	228 "space:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	229 #define CLASS_SPACE 9
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	230 "upper:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	231 #define CLASS_UPPER 10
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	232 "xdigit:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	233 #define CLASS_XDIGIT 11
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	234 "tab:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	235 #define CLASS_TAB 12
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	236 "return:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	237 #define CLASS_RETURN 13
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	238 "backspace:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	239 #define CLASS_BACKSPACE 14
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	240 "escape:]",
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	241 #define CLASS_ESCAPE 15
15709 2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	242 "ident:]",
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	243 #define CLASS_IDENT 16
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	244 "keyword:]",
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	245 #define CLASS_KEYWORD 17
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	246 "fname:]",
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	247 #define CLASS_FNAME 18
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	248 };
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249 #define CLASS_NONE 99
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	250 int i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	251
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	252 if ((*pp)[1] == ':')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	253 {
24768 7334bf933510 patch 8.2.2922: computing array length is done in various ways Bram Moolenaar <Bram@vim.org> parents: 24745 diff changeset	254 for (i = 0; i < (int)ARRAY_LENGTH(class_names); ++i)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	255 if (STRNCMP(*pp + 2, class_names[i], STRLEN(class_names[i])) == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	256 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	257 *pp += STRLEN(class_names[i]) + 2;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 return i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 return CLASS_NONE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	264 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265 * Specific version of character class functions.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	266 * Using a table to keep this fast.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	267 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	268 static short class_tab[256];
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	269
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	270 #define RI_DIGIT 0x01
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	271 #define RI_HEX 0x02
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 #define RI_OCTAL 0x04
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273 #define RI_WORD 0x08
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 #define RI_HEAD 0x10
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 #define RI_ALPHA 0x20
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276 #define RI_LOWER 0x40
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277 #define RI_UPPER 0x80
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 #define RI_WHITE 0x100
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	280 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	281 init_class_tab(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	282 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	283 int i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	284 static int done = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 if (done)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	287 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	288
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289 for (i = 0; i < 256; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	290 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 if (i >= '0' && i <= '7')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292 class_tab[i] = RI_DIGIT + RI_HEX + RI_OCTAL + RI_WORD;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 else if (i >= '8' && i <= '9')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294 class_tab[i] = RI_DIGIT + RI_HEX + RI_WORD;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 else if (i >= 'a' && i <= 'f')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	296 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	297 else if (i >= 'g' && i <= 'z')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	298 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_LOWER;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	299 else if (i >= 'A' && i <= 'F')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	300 class_tab[i] = RI_HEX + RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	301 else if (i >= 'G' && i <= 'Z')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	302 class_tab[i] = RI_WORD + RI_HEAD + RI_ALPHA + RI_UPPER;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	303 else if (i == '_')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	304 class_tab[i] = RI_WORD + RI_HEAD;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	305 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	306 class_tab[i] = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	307 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	308 class_tab[' '] \|= RI_WHITE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	309 class_tab['\t'] \|= RI_WHITE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	310 done = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	311 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	312
27752 c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	313 #define ri_digit(c) ((c) < 0x100 && (class_tab[c] & RI_DIGIT))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	314 #define ri_hex(c) ((c) < 0x100 && (class_tab[c] & RI_HEX))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	315 #define ri_octal(c) ((c) < 0x100 && (class_tab[c] & RI_OCTAL))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	316 #define ri_word(c) ((c) < 0x100 && (class_tab[c] & RI_WORD))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	317 #define ri_head(c) ((c) < 0x100 && (class_tab[c] & RI_HEAD))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	318 #define ri_alpha(c) ((c) < 0x100 && (class_tab[c] & RI_ALPHA))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	319 #define ri_lower(c) ((c) < 0x100 && (class_tab[c] & RI_LOWER))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	320 #define ri_upper(c) ((c) < 0x100 && (class_tab[c] & RI_UPPER))
c1d1639b52dd patch 8.2.4402: missing parenthesis may cause unexpected problems Bram Moolenaar <Bram@vim.org> parents: 27490 diff changeset	321 #define ri_white(c) ((c) < 0x100 && (class_tab[c] & RI_WHITE))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	322
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	323 // flags for regflags
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	324 #define RF_ICASE 1 // ignore case
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	325 #define RF_NOICASE 2 // don't ignore case
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	326 #define RF_HASNL 4 // can match a NL
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	327 #define RF_ICOMBINE 8 // ignore combining characters
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	328 #define RF_LOOKBH 16 // uses "\@<=" or "\@<!"
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	329
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	330 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	331 * Global work variables for vim_regcomp().
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	332 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	333
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	334 static char_u *regparse; // Input-scan pointer.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	335 static int regnpar; // () count.
23471 a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	336 static int wants_nfa; // regex should use NFA engine
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	337 #ifdef FEAT_SYN_HL
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	338 static int regnzpar; // \z() count.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	339 static int re_has_z; // \z item detected
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	340 #endif
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	341 static unsigned regflags; // RF_ flags for prog
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	342 #if defined(FEAT_SYN_HL) \|\| defined(PROTO)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	343 static int had_eol; // TRUE when EOL found by vim_regcomp()
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	344 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	345
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	346 static magic_T reg_magic; // magicness of the pattern
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	347
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	348 static int reg_string; // matching with a string instead of a buffer
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	349 // line
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	350 static int reg_strict; // "[abc" is illegal
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	351
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	352 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	353 * META contains all characters that may be magic, except '^' and '$'.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	354 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	355
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	356 // META[] is used often enough to justify turning it into a table.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	357 static char_u META_flags[] = {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	358 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	359 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	360 // % & ( ) * + .
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	361 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	362 // 1 2 3 4 5 6 7 8 9 < = > ?
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	363 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	364 // @ A C D F H I K L M O
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	365 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	366 // P S U V W X Z [ _
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	367 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	368 // a c d f h i k l m n o
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	369 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	370 // p s u v w x z { \| ~
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	371 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	372 };
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	373
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	374 static int curchr; // currently parsed character
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	375 // Previous character. Note: prevchr is sometimes -1 when we are not at the
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	376 // start, eg in /[ ^I]^ the pattern was never found even if it existed,
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	377 // because ^ was taken to be magic -- webb
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	378 static int prevchr;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	379 static int prevprevchr; // previous-previous character
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	380 static int nextchr; // used for ungetchr()
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	381
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	382 // arguments for reg()
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	383 #define REG_NOPAREN 0 // toplevel reg()
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	384 #define REG_PAREN 1 //
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	385 #define REG_ZPAREN 2 // \z(\)
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	386 #define REG_NPAREN 3 // \%(\)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	387
4679 4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	388 typedef struct
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	389 {
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	390 char_u *regparse;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	391 int prevchr_len;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	392 int curchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	393 int prevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	394 int prevprevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	395 int nextchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	396 int at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	397 int prev_at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	398 int regnpar;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	399 } parse_state_T;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	400
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	401 static void initchr(char_u *);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	402 static int getchr(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	403 static void skipchr_keepstart(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	404 static int peekchr(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	405 static void skipchr(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	406 static void ungetchr(void);
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	407 static long gethexchrs(int maxinputlen);
09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	408 static long getoctchrs(void);
09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	409 static long getdecchrs(void);
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	410 static int coll_get_char(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	411 static int prog_magic_wrong(void);
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	412 static int cstrncmp(char_u s1, char_u s2, int *n);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	413 static char_u cstrchr(char_u , int);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	414 static int re_mult_next(char *what);
15709 2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	415 static int reg_iswordc(int);
23471 a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	416 #ifdef FEAT_EVAL
a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	417 static void report_re_switch(char_u *pat);
a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	418 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	419
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	420 static regengine_T bt_regengine;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	421 static regengine_T nfa_regengine;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	422
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	423 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	424 * Return TRUE if compiled regular expression "prog" can match a line break.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	425 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	426 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	427 re_multiline(regprog_T *prog)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	428 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	429 return (prog->regflags & RF_HASNL);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	430 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	431
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	432 /*
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	433 * Check for an equivalence class name "[=a=]". "pp" points to the '['.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	434 * Returns a character representing the class. Zero means that no item was
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	435 * recognized. Otherwise "pp" is advanced to after the item.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	436 */
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	437 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	438 get_equi_class(char_u **pp)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	439 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	440 int c;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	441 int l = 1;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	442 char_u p = pp;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	443
15854 4ac1c185b0b8 patch 8.1.0934: invalid memory access in search pattern Bram Moolenaar <Bram@vim.org> parents: 15792 diff changeset	444 if (p[1] == '=' && p[2] != NUL)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	445 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	446 if (has_mbyte)
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	447 l = (*mb_ptr2len)(p + 2);
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	448 if (p[l + 2] == '=' && p[l + 3] == ']')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	449 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	450 if (has_mbyte)
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	451 c = mb_ptr2char(p + 2);
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	452 else
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	453 c = p[2];
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	454 *pp += l + 4;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	455 return c;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	456 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	457 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	458 return 0;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	459 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	460
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	461 /*
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	462 * Check for a collating element "[.a.]". "pp" points to the '['.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	463 * Returns a character. Zero means that no item was recognized. Otherwise
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	464 * "pp" is advanced to after the item.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	465 * Currently only single characters are recognized!
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	466 */
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	467 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	468 get_coll_element(char_u **pp)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	469 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	470 int c;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	471 int l = 1;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	472 char_u p = pp;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	473
15860 9cd9bf2897de patch 8.1.0937: invalid memory access in search pattern Bram Moolenaar <Bram@vim.org> parents: 15856 diff changeset	474 if (p[0] != NUL && p[1] == '.' && p[2] != NUL)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	475 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	476 if (has_mbyte)
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	477 l = (*mb_ptr2len)(p + 2);
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	478 if (p[l + 2] == '.' && p[l + 3] == ']')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	479 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	480 if (has_mbyte)
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	481 c = mb_ptr2char(p + 2);
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	482 else
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	483 c = p[2];
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	484 *pp += l + 4;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	485 return c;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	486 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	487 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	488 return 0;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	489 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	490
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	491 static int reg_cpo_lit; // 'cpoptions' contains 'l' flag
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	492 static int reg_cpo_bsl; // 'cpoptions' contains '\' flag
4744 a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	493
a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	494 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	495 get_cpo_flags(void)
4744 a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	496 {
a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	497 reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL;
a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	498 reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL;
a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	499 }
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	500
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	501 /*
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	502 * Skip over a "[]" range.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	503 * "p" must point to the character after the '['.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	504 * The returned pointer is on the matching ']', or the terminating NUL.
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	505 */
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	506 static char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	507 skip_anyof(char_u *p)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	508 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	509 int l;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	510
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	511 if (*p == '^') // Complement of range.
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	512 ++p;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	513 if (p == ']' \|\| p == '-')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	514 ++p;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	515 while (p != NUL && p != ']')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	516 {
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	517 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	518 p += l;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	519 else
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	520 if (*p == '-')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	521 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	522 ++p;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	523 if (p != ']' && p != NUL)
11127 506f5d8b7d8b patch 8.0.0451: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 11121 diff changeset	524 MB_PTR_ADV(p);
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	525 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	526 else if (*p == '\\'
4744 a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	527 && !reg_cpo_bsl
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	528 && (vim_strchr(REGEXP_INRANGE, p[1]) != NULL
4744 a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	529 \|\| (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL)))
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	530 p += 2;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	531 else if (*p == '[')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	532 {
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	533 if (get_char_class(&p) == CLASS_NONE
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	534 && get_equi_class(&p) == 0
6830 70fdcdaf96a6 patch 7.4.736 Bram Moolenaar <bram@vim.org> parents: 6785 diff changeset	535 && get_coll_element(&p) == 0
70fdcdaf96a6 patch 7.4.736 Bram Moolenaar <bram@vim.org> parents: 6785 diff changeset	536 && *p != NUL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	537 ++p; // it is not a class name and not NUL
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	538 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	539 else
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	540 ++p;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	541 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	542
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	543 return p;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	544 }
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	545
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	546 /*
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 * Skip past regular expression.
20113 2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	548 * Stop at end of "startp" or where "delim" is found ('/', '?', etc).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 * Take care of characters with a backslash in front of it.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 * Skip strings inside [ and ].
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	553 skip_regexp(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	554 char_u *startp,
20113 2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	555 int delim,
19892 5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	556 int magic)
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	557 {
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	558 return skip_regexp_ex(startp, delim, magic, NULL, NULL, NULL);
20113 2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	559 }
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	560
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	561 /*
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	562 * Call skip_regexp() and when the delimiter does not match give an error and
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	563 * return NULL.
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	564 */
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	565 char_u *
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	566 skip_regexp_err(
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	567 char_u *startp,
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	568 int delim,
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	569 int magic)
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	570 {
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	571 char_u *p = skip_regexp(startp, delim, magic);
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	572
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	573 if (*p != delim)
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	574 {
26952 b34ddbca305c patch 8.2.4005: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26917 diff changeset	575 semsg(_(e_missing_delimiter_after_search_pattern_str), startp);
20113 2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	576 return NULL;
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	577 }
2c23053c654a patch 8.2.0612: Vim9: no check for space before #comment Bram Moolenaar <Bram@vim.org> parents: 20007 diff changeset	578 return p;
19892 5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	579 }
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	580
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	581 /*
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	582 * skip_regexp() with extra arguments:
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	583 * When "newp" is not NULL and "dirc" is '?', make an allocated copy of the
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	584 * expression and change "\?" to "?". If "*newp" is not NULL the expression
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	585 * is changed in-place.
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	586 * If a "\?" is changed to "?" then "dropped" is incremented, unless NULL.
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	587 * If "magic_val" is not NULL, returns the effective magicness of the pattern
19892 5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	588 */
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	589 char_u *
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	590 skip_regexp_ex(
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	591 char_u *startp,
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	592 int dirc,
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	593 int magic,
19892 5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	594 char_u **newp,
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	595 int *dropped,
bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	596 magic_T *magic_val)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 {
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	598 magic_T mymagic;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	599 char_u *p = startp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 if (magic)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 mymagic = MAGIC_ON;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 mymagic = MAGIC_OFF;
4744 a62695305e03 updated for version 7.3.1119 Bram Moolenaar <bram@vim.org> parents: 4732 diff changeset	605 get_cpo_flags();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606
11127 506f5d8b7d8b patch 8.0.0451: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 11121 diff changeset	607 for (; p[0] != NUL; MB_PTR_ADV(p))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	609 if (p[0] == dirc) // found end of regexp
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 if ((p[0] == '[' && mymagic >= MAGIC_ON)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 \|\| (p[0] == '\\' && p[1] == '[' && mymagic <= MAGIC_OFF))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 p = skip_anyof(p + 1);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 if (p[0] == NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618 else if (p[0] == '\\' && p[1] != NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	619 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	620 if (dirc == '?' && newp != NULL && p[1] == '?')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	622 // change "\?" to "?", make a copy first.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	623 if (*newp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	624 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	625 *newp = vim_strsave(startp);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	626 if (*newp != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	627 p = *newp + (p - startp);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	628 }
19892 5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	629 if (dropped != NULL)
5feb426d2ea1 patch 8.2.0502: Vim9: some code is not tested Bram Moolenaar <Bram@vim.org> parents: 19405 diff changeset	630 ++*dropped;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	631 if (*newp != NULL)
1621 82b5078be2dd updated for version 7.2a vimboss parents: 1602 diff changeset	632 STRMOVE(p, p + 1);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 ++p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 else
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	637 ++p; // skip next character
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 if (*p == 'v')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 mymagic = MAGIC_ALL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 else if (*p == 'V')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 mymagic = MAGIC_NONE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643 }
23505 bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	644 if (magic_val != NULL)
bb29b09902d5 patch 8.2.2295: incsearch does not detect empty pattern properly Bram Moolenaar <Bram@vim.org> parents: 23471 diff changeset	645 *magic_val = mymagic;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	646 return p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	647 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	648
11525 14b6b79d685b patch 8.0.0645: no error for illegal back reference in NFA engine Christian Brabandt <cb@256bit.org> parents: 11521 diff changeset	649 /*
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	650 * Functions for getting characters from the regexp input.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651 */
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	652 static int prevchr_len; // byte length of previous char
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	653 static int at_start; // True when on the first character
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	654 static int prev_at_start; // True when on the second character
8021 b6b4f354df23 commit https://github.com/vim/vim/commit/7c29f387819b5817b003d2ba73e2b5cf3cb3d0dd Christian Brabandt <cb@256bit.org> parents: 7833 diff changeset	655
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	656 /*
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	657 * Start parsing at "str".
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	658 */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	659 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	660 initchr(char_u *str)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	661 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 regparse = str;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663 prevchr_len = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	664 curchr = prevprevchr = prevchr = nextchr = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	665 at_start = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	666 prev_at_start = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	667 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	668
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	669 /*
4679 4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	670 * Save the current parse state, so that it can be restored and parsing
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	671 * starts in the same state again.
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	672 */
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	673 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	674 save_parse_state(parse_state_T *ps)
4679 4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	675 {
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	676 ps->regparse = regparse;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	677 ps->prevchr_len = prevchr_len;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	678 ps->curchr = curchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	679 ps->prevchr = prevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	680 ps->prevprevchr = prevprevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	681 ps->nextchr = nextchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	682 ps->at_start = at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	683 ps->prev_at_start = prev_at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	684 ps->regnpar = regnpar;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	685 }
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	686
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	687 /*
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	688 * Restore a previously saved parse state.
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	689 */
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	690 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	691 restore_parse_state(parse_state_T *ps)
4679 4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	692 {
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	693 regparse = ps->regparse;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	694 prevchr_len = ps->prevchr_len;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	695 curchr = ps->curchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	696 prevchr = ps->prevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	697 prevprevchr = ps->prevprevchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	698 nextchr = ps->nextchr;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	699 at_start = ps->at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	700 prev_at_start = ps->prev_at_start;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	701 regnpar = ps->regnpar;
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	702 }
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	703
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	704
4d92b873acef updated for version 7.3.1087 Bram Moolenaar <bram@vim.org> parents: 4579 diff changeset	705 /*
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	706 * Get the next character without advancing.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	707 */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	708 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	709 peekchr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	710 {
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	711 static int after_slash = FALSE;
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	712
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	713 if (curchr != -1)
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	714 return curchr;
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	715
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	716 switch (curchr = regparse[0])
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	717 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	718 case '.':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	719 case '[':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	720 case '~':
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	721 // magic when 'magic' is on
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	722 if (reg_magic >= MAGIC_ON)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	723 curchr = Magic(curchr);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	724 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	725 case '(':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	726 case ')':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	727 case '{':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	728 case '%':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	729 case '+':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	730 case '=':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	731 case '?':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	732 case '@':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	733 case '!':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	734 case '&':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	735 case '\|':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	736 case '<':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	737 case '>':
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	738 case '#': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	739 case '"': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	740 case '\'': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	741 case ',': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	742 case '-': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	743 case ':': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	744 case ';': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	745 case '`': // future ext.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	746 case '/': // Can't be used in / command
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	747 // magic only after "\v"
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	748 if (reg_magic == MAGIC_ALL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	749 curchr = Magic(curchr);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	750 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	751 case '*':
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	752 // * is not magic as the very first character, eg "?*ptr", when
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	753 // after '^', eg "/^*ptr" and when after "\(", "\\|", "\&". But
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	754 // "\(\*" is not magic, thus must be magic if "after_slash"
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	755 if (reg_magic >= MAGIC_ON
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	756 && !at_start
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	757 && !(prev_at_start && prevchr == Magic('^'))
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	758 && (after_slash
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	759 \|\| (prevchr != Magic('(')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	760 && prevchr != Magic('&')
c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	761 && prevchr != Magic('\|'))))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	762 curchr = Magic('*');
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	763 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	764 case '^':
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	765 // '^' is only magic as the very first character and if it's after
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	766 // "\(", "\\|", "\&' or "\n"
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	767 if (reg_magic >= MAGIC_OFF
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	768 && (at_start
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	769 \|\| reg_magic == MAGIC_ALL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	770 \|\| prevchr == Magic('(')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	771 \|\| prevchr == Magic('\|')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	772 \|\| prevchr == Magic('&')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	773 \|\| prevchr == Magic('n')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	774 \|\| (no_Magic(prevchr) == '('
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	775 && prevprevchr == Magic('%'))))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	776 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	777 curchr = Magic('^');
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	778 at_start = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	779 prev_at_start = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	780 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	781 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	782 case '$':
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	783 // '$' is only magic as the very last char and if it's in front of
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	784 // either "\\|", "\)", "\&", or "\n"
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	785 if (reg_magic >= MAGIC_OFF)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	786 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	787 char_u *p = regparse + 1;
6041 761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	788 int is_magic_all = (reg_magic == MAGIC_ALL);
761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	789
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	790 // ignore \c \C \m \M \v \V and \Z after '$'
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	791 while (p[0] == '\\' && (p[1] == 'c' \|\| p[1] == 'C'
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	792 \|\| p[1] == 'm' \|\| p[1] == 'M'
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	793 \|\| p[1] == 'v' \|\| p[1] == 'V' \|\| p[1] == 'Z'))
6041 761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	794 {
761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	795 if (p[1] == 'v')
761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	796 is_magic_all = TRUE;
761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	797 else if (p[1] == 'm' \|\| p[1] == 'M' \|\| p[1] == 'V')
761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	798 is_magic_all = FALSE;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	799 p += 2;
6041 761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	800 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	801 if (p[0] == NUL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	802 \|\| (p[0] == '\\'
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	803 && (p[1] == '\|' \|\| p[1] == '&' \|\| p[1] == ')'
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	804 \|\| p[1] == 'n'))
6041 761687c6808f updated for version 7.4.360 Bram Moolenaar <bram@vim.org> parents: 5901 diff changeset	805 \|\| (is_magic_all
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	806 && (p[0] == '\|' \|\| p[0] == '&' \|\| p[0] == ')'))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	807 \|\| reg_magic == MAGIC_ALL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	808 curchr = Magic('$');
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	809 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	810 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	811 case '\\':
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	812 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	813 int c = regparse[1];
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	814
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	815 if (c == NUL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	816 curchr = '\\'; // trailing '\'
27490 fb4c30606b4a patch 8.2.4273: the EBCDIC support is outdated Bram Moolenaar <Bram@vim.org> parents: 27468 diff changeset	817 else if (c <= '~' && META_flags[c])
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	818 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	819 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	820 * META contains everything that may be magic sometimes,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	821 * except ^ and $ ("\^" and "\$" are only magic after
6830 70fdcdaf96a6 patch 7.4.736 Bram Moolenaar <bram@vim.org> parents: 6785 diff changeset	822 * "\V"). We now fetch the next character and toggle its
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	823 * magicness. Therefore, \ is so meta-magic that it is
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	824 * not in META.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	825 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	826 curchr = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	827 prev_at_start = at_start;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	828 at_start = FALSE; // be able to say "/\*ptr"
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	829 ++regparse;
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	830 ++after_slash;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	831 peekchr();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	832 --regparse;
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	833 --after_slash;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	834 curchr = toggle_Magic(curchr);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	835 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	836 else if (vim_strchr(REGEXP_ABBR, c))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	837 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	838 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	839 * Handle abbreviations, like "\t" for TAB -- webb
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	840 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	841 curchr = backslash_trans(c);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	842 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	843 else if (reg_magic == MAGIC_NONE && (c == '$' \|\| c == '^'))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	844 curchr = toggle_Magic(c);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	845 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	846 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	847 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	848 * Next character can never be (made) magic?
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	849 * Then backslashing it won't do anything.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	850 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	851 if (has_mbyte)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	852 curchr = (*mb_ptr2char)(regparse + 1);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	853 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	854 curchr = c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	855 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	856 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	857 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	858
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	859 default:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	860 if (has_mbyte)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	861 curchr = (*mb_ptr2char)(regparse);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	862 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	863
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	864 return curchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	865 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	866
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	867 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	868 * Eat one lexed character. Do this in a way that we can undo it.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	869 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	870 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	871 skipchr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	872 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	873 // peekchr() eats a backslash, do the same here
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	874 if (*regparse == '\\')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	875 prevchr_len = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	876 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	877 prevchr_len = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	878 if (regparse[prevchr_len] != NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	879 {
714 0f9f4761ad9c updated for version 7.0216 vimboss parents: 692 diff changeset	880 if (enc_utf8)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	881 // exclude composing chars that mb_ptr2len does include
1449 799c1db62b42 updated for version 7.1-164 vimboss parents: 1347 diff changeset	882 prevchr_len += utf_ptr2len(regparse + prevchr_len);
714 0f9f4761ad9c updated for version 7.0216 vimboss parents: 692 diff changeset	883 else if (has_mbyte)
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	884 prevchr_len += (*mb_ptr2len)(regparse + prevchr_len);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	885 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	886 ++prevchr_len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	887 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	888 regparse += prevchr_len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	889 prev_at_start = at_start;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	890 at_start = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	891 prevprevchr = prevchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	892 prevchr = curchr;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	893 curchr = nextchr; // use previously unget char, or -1
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	894 nextchr = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	895 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	896
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	897 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	898 * Skip a character while keeping the value of prev_at_start for at_start.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	899 * prevchr and prevprevchr are also kept.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	900 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	901 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	902 skipchr_keepstart(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	903 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	904 int as = prev_at_start;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	905 int pr = prevchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	906 int prpr = prevprevchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	907
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	908 skipchr();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	909 at_start = as;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	910 prevchr = pr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	911 prevprevchr = prpr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	912 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	913
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	914 /*
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	915 * Get the next character from the pattern. We know about magic and such, so
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	916 * therefore we need a lexical analyzer.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	917 */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	918 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	919 getchr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	920 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	921 int chr = peekchr();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	922
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	923 skipchr();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	924 return chr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	925 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	926
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	927 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	928 * put character back. Works only once!
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	929 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	930 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	931 ungetchr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	932 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	933 nextchr = curchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	934 curchr = prevchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	935 prevchr = prevprevchr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	936 at_start = prev_at_start;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	937 prev_at_start = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	938
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	939 // Backup regparse, so that it's at the same position as before the
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	940 // getchr().
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	941 regparse -= prevchr_len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	942 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	943
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	944 /*
29 ac33b7c03fac updated for version 7.0018 vimboss parents: 24 diff changeset	945 * Get and return the value of the hex string at the current position.
ac33b7c03fac updated for version 7.0018 vimboss parents: 24 diff changeset	946 * Return -1 if there is no valid hex number.
ac33b7c03fac updated for version 7.0018 vimboss parents: 24 diff changeset	947 * The position is updated:
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	948 * blahblah\%x20asdf
856 8cd729851562 updated for version 7.0g vimboss parents: 840 diff changeset	949 * before-^ ^-after
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	950 * The parameter controls the maximum number of input characters. This will be
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	951 * 2 when reading a \%x20 sequence and 4 when reading a \%u20AC sequence.
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	952 */
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	953 static long
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	954 gethexchrs(int maxinputlen)
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	955 {
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	956 long_u nr = 0;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	957 int c;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	958 int i;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	959
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	960 for (i = 0; i < maxinputlen; ++i)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	961 {
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	962 c = regparse[0];
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	963 if (!vim_isxdigit(c))
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	964 break;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	965 nr <<= 4;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	966 nr \|= hex2nr(c);
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	967 ++regparse;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	968 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	969
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	970 if (i == 0)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	971 return -1;
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	972 return (long)nr;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	973 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	974
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	975 /*
4579 7a2be4a39423 updated for version 7.3.1037 Bram Moolenaar <bram@vim.org> parents: 4505 diff changeset	976 * Get and return the value of the decimal string immediately after the
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	977 * current position. Return -1 for invalid. Consumes all digits.
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	978 */
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	979 static long
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	980 getdecchrs(void)
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	981 {
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	982 long_u nr = 0;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	983 int c;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	984 int i;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	985
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	986 for (i = 0; ; ++i)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	987 {
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	988 c = regparse[0];
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	989 if (c < '0' \|\| c > '9')
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	990 break;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	991 nr *= 10;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	992 nr += c - '0';
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	993 ++regparse;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	994 curchr = -1; // no longer valid
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	995 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	996
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	997 if (i == 0)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	998 return -1;
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	999 return (long)nr;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1000 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1001
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1002 /*
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1003 * get and return the value of the octal string immediately after the current
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1004 * position. Return -1 for invalid, or 0-255 for valid. Smart enough to handle
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1005 * numbers > 377 correctly (for example, 400 is treated as 40) and doesn't
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1006 * treat 8 or 9 as recognised characters. Position is updated:
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1007 * blahblah\%o210asdf
856 8cd729851562 updated for version 7.0g vimboss parents: 840 diff changeset	1008 * before-^ ^-after
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1009 */
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	1010 static long
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1011 getoctchrs(void)
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1012 {
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	1013 long_u nr = 0;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1014 int c;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1015 int i;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1016
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1017 for (i = 0; i < 3 && nr < 040; ++i)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1018 {
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1019 c = regparse[0];
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1020 if (c < '0' \|\| c > '7')
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1021 break;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1022 nr <<= 3;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1023 nr \|= hex2nr(c);
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1024 ++regparse;
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1025 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1026
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1027 if (i == 0)
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1028 return -1;
12752 09c856605191 patch 8.0.1254: undefined left shift in gethexchrs() Christian Brabandt <cb@256bit.org> parents: 12674 diff changeset	1029 return (long)nr;
24 8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1030 }
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1031
8ff7fd162d3c updated for version 7.0016 vimboss parents: 7 diff changeset	1032 /*
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1033 * read_limits - Read two integers to be taken as a minimum and maximum.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1034 * If the first character is '-', then the range is reversed.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1035 * Should end with 'end'. If minval is missing, zero is default, if maxval is
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1036 * missing, a very big number is the default.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1037 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1038 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1039 read_limits(long minval, long maxval)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1040 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1041 int reverse = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1042 char_u *first_char;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1043 long tmp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1044
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1045 if (*regparse == '-')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1046 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1047 // Starts with '-', so reverse the range later
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1048 regparse++;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1049 reverse = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1050 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1051 first_char = regparse;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1052 *minval = getdigits(&regparse);
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1053 if (*regparse == ',') // There is a comma
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1054 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1055 if (vim_isdigit(*++regparse))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1056 *maxval = getdigits(&regparse);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1057 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1058 *maxval = MAX_LIMIT;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1059 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1060 else if (VIM_ISDIGIT(*first_char))
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1061 maxval = minval; // It was \{n} or \{-n}
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1062 else
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1063 *maxval = MAX_LIMIT; // It was \{} or \{-}
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1064 if (*regparse == '\\')
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1065 regparse++; // Allow either \{...} or \{...\}
167 c93c9cad9618 updated for version 7.0051 vimboss parents: 153 diff changeset	1066 if (*regparse != '}')
26917 d91aea2a612c patch 8.2.3987: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26913 diff changeset	1067 EMSG2_RET_FAIL(_(e_syntax_error_in_str_curlies),
15480 bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	1068 reg_magic == MAGIC_ALL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1069
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1070 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1071 * Reverse the range if there was a '-', or make sure it is in the right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1072 * order otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1073 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1074 if ((!reverse && minval > maxval) \|\| (reverse && minval < maxval))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1075 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1076 tmp = *minval;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1077 minval = maxval;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1078 *maxval = tmp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1079 }
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1080 skipchr(); // let's be friends with the lexer again
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1081 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1082 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1083
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1084 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1085 * vim_regexec and friends
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1086 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1087
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1088 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1089 * Global work variables for vim_regexec().
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1090 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1091
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	1092 static void cleanup_subexpr(void);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1093 #ifdef FEAT_SYN_HL
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	1094 static void cleanup_zsubexpr(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	1095 #endif
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	1096 static int match_with_backref(linenr_T start_lnum, colnr_T start_col, linenr_T end_lnum, colnr_T end_col, int *bytelen);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1097
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1098 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1099 * Sometimes need to save a copy of a line. Since alloc()/free() is very
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1100 * slow, we keep one allocated piece of memory and only re-allocate it when
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1101 * it's too small. It's freed in bt_regexec_both() when finished.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1102 */
1468 200b706675a5 updated for version 7.1-183 vimboss parents: 1458 diff changeset	1103 static char_u *reg_tofree = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1104 static unsigned reg_tofreelen;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1105
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1106 /*
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1107 * Structure used to store the execution state of the regex engine.
1209 070f2ac50cf8 updated for version 7.1b vimboss parents: 1148 diff changeset	1108 * Which ones are set depends on whether a single-line or multi-line match is
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1109 * done:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1110 * single-line multi-line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1111 * reg_match &regmatch_T NULL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1112 * reg_mmatch NULL &regmmatch_T
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1113 * reg_startp reg_match->startp <invalid>
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1114 * reg_endp reg_match->endp <invalid>
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1115 * reg_startpos <invalid> reg_mmatch->startpos
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1116 * reg_endpos <invalid> reg_mmatch->endpos
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1117 * reg_win NULL window in which to search
4061 be4baed0c933 updated for version 7.3.785 Bram Moolenaar <bram@vim.org> parents: 4043 diff changeset	1118 * reg_buf curbuf buffer in which to search
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1119 * reg_firstlnum <invalid> first line in which to search
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1120 * reg_maxline 0 last line nr
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1121 * reg_line_lbr FALSE or TRUE FALSE
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1122 */
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1123 typedef struct {
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1124 regmatch_T *reg_match;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1125 regmmatch_T *reg_mmatch;
31235 7fb4e244b16e patch 9.0.0951: trying every character position for a match is inefficient Bram Moolenaar <Bram@vim.org> parents: 31233 diff changeset	1126
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1127 char_u **reg_startp;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1128 char_u **reg_endp;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1129 lpos_T *reg_startpos;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1130 lpos_T *reg_endpos;
31235 7fb4e244b16e patch 9.0.0951: trying every character position for a match is inefficient Bram Moolenaar <Bram@vim.org> parents: 31233 diff changeset	1131
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1132 win_T *reg_win;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1133 buf_T *reg_buf;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1134 linenr_T reg_firstlnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1135 linenr_T reg_maxline;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1136 int reg_line_lbr; // "\n" in string is line break
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1137
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1138 // The current match-position is stord in these variables:
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1139 linenr_T lnum; // line number, relative to first line
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1140 char_u *line; // start of current line
26161 9835f424bef5 patch 8.2.3612: using freed memory with regexp using a mark Bram Moolenaar <Bram@vim.org> parents: 25320 diff changeset	1141 char_u *input; // current input, points into "line"
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1142
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1143 int need_clear_subexpr; // subexpressions still need to be cleared
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1144 #ifdef FEAT_SYN_HL
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1145 int need_clear_zsubexpr; // extmatch subexpressions still need to be
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1146 // cleared
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1147 #endif
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1148
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1149 // Internal copy of 'ignorecase'. It is set at each call to vim_regexec().
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1150 // Normally it gets the value of "rm_ic" or "rmm_ic", but when the pattern
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1151 // contains '\c' or '\C' the value is overruled.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1152 int reg_ic;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1153
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1154 // Similar to "reg_ic", but only for 'combining' characters. Set with \Z
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1155 // flag in the regexp. Defaults to false, always.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1156 int reg_icombine;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1157
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1158 // Copy of "rmm_maxcol": maximum column to search for a match. Zero when
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1159 // there is no maximum.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1160 colnr_T reg_maxcol;
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1161
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1162 // State for the NFA engine regexec.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1163 int nfa_has_zend; // NFA regexp \ze operator encountered.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1164 int nfa_has_backref; // NFA regexp \1 .. \9 encountered.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1165 int nfa_nsubexpr; // Number of sub expressions actually being used
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1166 // during execution. 1 if only the whole match
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1167 // (subexpr 0) is used.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1168 // listid is global, so that it increases on recursive calls to
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1169 // nfa_regmatch(), which means we don't have to clear the lastlist field of
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1170 // all the states.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1171 int nfa_listid;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1172 int nfa_alt_listid;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1173
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1174 #ifdef FEAT_SYN_HL
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1175 int nfa_has_zsubexpr; // NFA regexp has \z( ), set zsubexpr.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1176 #endif
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1177 } regexec_T;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1178
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1179 static regexec_T rex;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1180 static int rex_in_use = FALSE;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1181
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1182 /*
15709 2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1183 * Return TRUE if character 'c' is included in 'iskeyword' option for
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1184 * "reg_buf" buffer.
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1185 */
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1186 static int
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1187 reg_iswordc(int c)
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1188 {
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1189 return vim_iswordc_buf(c, rex.reg_buf);
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1190 }
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1191
2e2f07561f4b patch 8.1.0862: no verbose version of character classes Bram Moolenaar <Bram@vim.org> parents: 15603 diff changeset	1192 /*
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1193 * Get pointer to the line "lnum", which is relative to "reg_firstlnum".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1194 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1195 static char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1196 reg_getline(linenr_T lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1197 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1198 // when looking behind for a match/no-match lnum is negative. But we
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1199 // can't go before line 1
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1200 if (rex.reg_firstlnum + lnum < 1)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1201 return NULL;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1202 if (lnum > rex.reg_maxline)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1203 // Must have matched the "\n" in the last line.
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 474 diff changeset	1204 return (char_u *)"";
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1205 return ml_get_buf(rex.reg_buf, rex.reg_firstlnum + lnum, FALSE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1206 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1207
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1208 #ifdef FEAT_SYN_HL
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1209 static char_u *reg_startzp[NSUBEXP]; // Workspace to mark beginning
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1210 static char_u *reg_endzp[NSUBEXP]; // and end of \z(...\) matches
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1211 static lpos_T reg_startzpos[NSUBEXP]; // idem, beginning pos
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1212 static lpos_T reg_endzpos[NSUBEXP]; // idem, end pos
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1213 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1214
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1215 // TRUE if using multi-line regexp.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1216 #define REG_MULTI (rex.reg_match == NULL)
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1217
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1218 #ifdef FEAT_SYN_HL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1219 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1220 * Create a new extmatch and mark it as referenced once.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1221 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1222 static reg_extmatch_T *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1223 make_extmatch(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1224 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1225 reg_extmatch_T *em;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1226
16825 ce04ebdf26b8 patch 8.1.1414: alloc() returning "char_u " causes a lot of type casts Bram Moolenaar <Bram@vim.org>* parents: 16768 diff changeset	1227 em = ALLOC_CLEAR_ONE(reg_extmatch_T);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1228 if (em != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1229 em->refcnt = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1230 return em;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1231 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1232
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1233 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1234 * Add a reference to an extmatch.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1235 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1236 reg_extmatch_T *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1237 ref_extmatch(reg_extmatch_T *em)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1238 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1239 if (em != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1240 em->refcnt++;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1241 return em;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1242 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1243
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1244 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1245 * Remove a reference to an extmatch. If there are no references left, free
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1246 * the info.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1247 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1248 void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1249 unref_extmatch(reg_extmatch_T *em)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1250 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1251 int i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1252
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1253 if (em != NULL && --em->refcnt <= 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1254 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1255 for (i = 0; i < NSUBEXP; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1256 vim_free(em->matches[i]);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1257 vim_free(em);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1258 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1259 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1260 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1261
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1262 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1263 * Get class of previous character.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1264 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1265 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1266 reg_prev_class(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1267 {
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1268 if (rex.input > rex.line)
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1269 return mb_get_class_buf(rex.input - 1
15603 639b8318472c patch 8.1.0809: too many #ifdefs Bram Moolenaar <Bram@vim.org> parents: 15555 diff changeset	1270 - (*mb_head_off)(rex.line, rex.input - 1), rex.reg_buf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1271 return -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1272 }
5735 50dbef5e774a updated for version 7.4.212 Bram Moolenaar <bram@vim.org> parents: 5504 diff changeset	1273
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1274 /*
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1275 * Return TRUE if the current rex.input position matches the Visual area.
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1276 */
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1277 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1278 reg_match_visual(void)
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1279 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1280 pos_T top, bot;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1281 linenr_T lnum;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1282 colnr_T col;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1283 win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win;
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1284 int mode;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1285 colnr_T start, end;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1286 colnr_T start2, end2;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1287 colnr_T cols;
24745 b1fa3f005c93 patch 8.2.2911: pattern "%V" does not match all of block selection Bram Moolenaar <Bram@vim.org> parents: 24488 diff changeset	1288 colnr_T curswant;
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1289
27466 8ed815f061af patch 8.2.4261: accessing invalid memory in a regular expression Bram Moolenaar <Bram@vim.org> parents: 26966 diff changeset	1290 // Check if the buffer is the current buffer and not using a string.
27468 678ea52c15a0 patch 8.2.4262: some search tests fail Bram Moolenaar <Bram@vim.org> parents: 27466 diff changeset	1291 if (rex.reg_buf != curbuf \|\| VIsual.lnum == 0 \|\| !REG_MULTI)
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1292 return FALSE;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1293
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1294 if (VIsual_active)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1295 {
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	1296 if (LT_POS(VIsual, wp->w_cursor))
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1297 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1298 top = VIsual;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1299 bot = wp->w_cursor;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1300 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1301 else
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1302 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1303 top = wp->w_cursor;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1304 bot = VIsual;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1305 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1306 mode = VIsual_mode;
24745 b1fa3f005c93 patch 8.2.2911: pattern "%V" does not match all of block selection Bram Moolenaar <Bram@vim.org> parents: 24488 diff changeset	1307 curswant = wp->w_curswant;
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1308 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1309 else
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1310 {
11121 778c10516955 patch 8.0.0448: some macros are in lower case Christian Brabandt <cb@256bit.org> parents: 10359 diff changeset	1311 if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end))
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1312 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1313 top = curbuf->b_visual.vi_start;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1314 bot = curbuf->b_visual.vi_end;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1315 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1316 else
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1317 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1318 top = curbuf->b_visual.vi_end;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1319 bot = curbuf->b_visual.vi_start;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1320 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1321 mode = curbuf->b_visual.vi_mode;
24745 b1fa3f005c93 patch 8.2.2911: pattern "%V" does not match all of block selection Bram Moolenaar <Bram@vim.org> parents: 24488 diff changeset	1322 curswant = curbuf->b_visual.vi_curswant;
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1323 }
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1324 lnum = rex.lnum + rex.reg_firstlnum;
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1325 if (lnum < top.lnum \|\| lnum > bot.lnum)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1326 return FALSE;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1327
26841 48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1328 col = (colnr_T)(rex.input - rex.line);
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1329 if (mode == 'v')
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1330 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1331 if ((lnum == top.lnum && col < top.col)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1332 \|\| (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e')))
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1333 return FALSE;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1334 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1335 else if (mode == Ctrl_V)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1336 {
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1337 getvvcol(wp, &top, &start, NULL, &end);
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1338 getvvcol(wp, &bot, &start2, NULL, &end2);
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1339 if (start2 < start)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1340 start = start2;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1341 if (end2 > end)
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1342 end = end2;
24745 b1fa3f005c93 patch 8.2.2911: pattern "%V" does not match all of block selection Bram Moolenaar <Bram@vim.org> parents: 24488 diff changeset	1343 if (top.col == MAXCOL \|\| bot.col == MAXCOL \|\| curswant == MAXCOL)
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1344 end = MAXCOL;
26841 48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1345
48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1346 // getvvcol() flushes rex.line, need to get it again
48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1347 rex.line = reg_getline(rex.lnum);
48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1348 rex.input = rex.line + col;
48d6f187e9c0 patch 8.2.3949: using freed memory with /%V Bram Moolenaar <Bram@vim.org> parents: 26534 diff changeset	1349
29451 057c26b5c33a patch 9.0.0067: cannot show virtual text Bram Moolenaar <Bram@vim.org> parents: 29410 diff changeset	1350 cols = win_linetabsize(wp, rex.reg_firstlnum + rex.lnum, rex.line, col);
4730 749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1351 if (cols < start \|\| cols > end - (*p_sel == 'e'))
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1352 return FALSE;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1353 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1354 return TRUE;
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1355 }
749e2b2755d5 updated for version 7.3.1112 Bram Moolenaar <bram@vim.org> parents: 4720 diff changeset	1356
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1357 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1358 * Check the regexp program for its magic number.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1359 * Return TRUE if it's wrong.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1360 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1361 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1362 prog_magic_wrong(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1363 {
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1364 regprog_T *prog;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1365
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1366 prog = REG_MULTI ? rex.reg_mmatch->regprog : rex.reg_match->regprog;
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1367 if (prog->engine == &nfa_regengine)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1368 // For NFA matcher we don't check the magic
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1369 return FALSE;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1370
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	1371 if (UCHARAT(((bt_regprog_T *)prog)->program) != REGMAGIC)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1372 {
25306 078edc1821bf patch 8.2.3190: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 24768 diff changeset	1373 emsg(_(e_corrupted_regexp_program));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1374 return TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1375 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1376 return FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1377 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1378
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1379 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1380 * Cleanup the subexpressions, if this wasn't done yet.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1381 * This construction is used to clear the subexpressions only when they are
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1382 * used (to increase speed).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1383 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1384 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1385 cleanup_subexpr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1386 {
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1387 if (!rex.need_clear_subexpr)
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1388 return;
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1389
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1390 if (REG_MULTI)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1391 {
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1392 // Use 0xff to set lnum to -1
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1393 vim_memset(rex.reg_startpos, 0xff, sizeof(lpos_T) * NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1394 vim_memset(rex.reg_endpos, 0xff, sizeof(lpos_T) * NSUBEXP);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1395 }
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1396 else
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1397 {
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1398 vim_memset(rex.reg_startp, 0, sizeof(char_u ) NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1399 vim_memset(rex.reg_endp, 0, sizeof(char_u ) NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1400 }
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1401 rex.need_clear_subexpr = FALSE;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1402 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1403
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1404 #ifdef FEAT_SYN_HL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1405 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1406 cleanup_zsubexpr(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1407 {
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1408 if (!rex.need_clear_zsubexpr)
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1409 return;
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1410
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1411 if (REG_MULTI)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1412 {
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1413 // Use 0xff to set lnum to -1
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1414 vim_memset(reg_startzpos, 0xff, sizeof(lpos_T) * NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1415 vim_memset(reg_endzpos, 0xff, sizeof(lpos_T) * NSUBEXP);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1416 }
31778 579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1417 else
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1418 {
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1419 vim_memset(reg_startzp, 0, sizeof(char_u ) NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1420 vim_memset(reg_endzp, 0, sizeof(char_u ) NSUBEXP);
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1421 }
579c846086eb patch 9.0.1221: code is indented more than necessary Bram Moolenaar <Bram@vim.org> parents: 31235 diff changeset	1422 rex.need_clear_zsubexpr = FALSE;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1423 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1424 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1425
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1426 /*
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1427 * Advance rex.lnum, rex.line and rex.input to the next line.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1428 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1429 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1430 reg_nextline(void)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1431 {
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1432 rex.line = reg_getline(++rex.lnum);
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1433 rex.input = rex.line;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1434 fast_breakcheck();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1435 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1436
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1437 /*
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1438 * Check whether a backreference matches.
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1439 * Returns RA_FAIL, RA_NOMATCH or RA_MATCH.
5504 ec5d11403c19 updated for version 7.4.101 Bram Moolenaar <bram@vim.org> parents: 5353 diff changeset	1440 * If "bytelen" is not NULL, it is set to the byte length of the match in the
ec5d11403c19 updated for version 7.4.101 Bram Moolenaar <bram@vim.org> parents: 5353 diff changeset	1441 * last line.
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1442 */
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1443 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1444 match_with_backref(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1445 linenr_T start_lnum,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1446 colnr_T start_col,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1447 linenr_T end_lnum,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1448 colnr_T end_col,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1449 int *bytelen)
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1450 {
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1451 linenr_T clnum = start_lnum;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1452 colnr_T ccol = start_col;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1453 int len;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1454 char_u *p;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1455
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1456 if (bytelen != NULL)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1457 *bytelen = 0;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1458 for (;;)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1459 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1460 // Since getting one line may invalidate the other, need to make copy.
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1461 // Slow!
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1462 if (rex.line != reg_tofree)
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1463 {
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1464 len = (int)STRLEN(rex.line);
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1465 if (reg_tofree == NULL \|\| len >= (int)reg_tofreelen)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1466 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1467 len += 50; // get some extra
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1468 vim_free(reg_tofree);
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1469 reg_tofree = alloc(len);
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1470 if (reg_tofree == NULL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1471 return RA_FAIL; // out of memory!
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1472 reg_tofreelen = len;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1473 }
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1474 STRCPY(reg_tofree, rex.line);
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1475 rex.input = reg_tofree + (rex.input - rex.line);
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1476 rex.line = reg_tofree;
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1477 }
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1478
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1479 // Get the line to compare with.
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1480 p = reg_getline(clnum);
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1481 if (clnum == end_lnum)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1482 len = end_col - ccol;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1483 else
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1484 len = (int)STRLEN(p + ccol);
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1485
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1486 if (cstrncmp(p + ccol, rex.input, &len) != 0)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1487 return RA_NOMATCH; // doesn't match
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1488 if (bytelen != NULL)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1489 *bytelen += len;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1490 if (clnum == end_lnum)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1491 break; // match and at end!
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	1492 if (rex.lnum >= rex.reg_maxline)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1493 return RA_NOMATCH; // text too short
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1494
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1495 // Advance to next line.
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1496 reg_nextline();
5504 ec5d11403c19 updated for version 7.4.101 Bram Moolenaar <bram@vim.org> parents: 5353 diff changeset	1497 if (bytelen != NULL)
ec5d11403c19 updated for version 7.4.101 Bram Moolenaar <bram@vim.org> parents: 5353 diff changeset	1498 *bytelen = 0;
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1499 ++clnum;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1500 ccol = 0;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1501 if (got_int)
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1502 return RA_FAIL;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1503 }
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1504
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1505 // found a match! Note that rex.line may now point to a copy of the line,
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1506 // that should not matter.
4891 4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1507 return RA_MATCH;
4c42efb4c098 updated for version 7.3.1191 Bram Moolenaar <bram@vim.org> parents: 4805 diff changeset	1508 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1509
6203 8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1510 /*
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1511 * Used in a place where no * or \+ can follow.
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1512 */
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1513 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1514 re_mult_next(char *what)
6203 8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1515 {
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1516 if (re_multi_type(peekchr()) == MULTI_MULT)
15480 bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	1517 {
26966 ac75c145f0a9 patch 8.2.4012: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26962 diff changeset	1518 semsg(_(e_nfa_regexp_cannot_repeat_str), what);
15480 bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	1519 rc_did_emsg = TRUE;
bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	1520 return FAIL;
bd12ace1bab2 patch 8.1.0748: using sprintf() instead of semsg() Bram Moolenaar <Bram@vim.org> parents: 15470 diff changeset	1521 }
6203 8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1522 return OK;
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1523 }
8515b42f939c updated for version 7.4.437 Bram Moolenaar <bram@vim.org> parents: 6041 diff changeset	1524
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1525 typedef struct
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1526 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1527 int a, b, c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1528 } decomp_T;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1529
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1530
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1531 // 0xfb20 - 0xfb4f
297 9a1c2a8186b7 updated for version 7.0078 vimboss parents: 270 diff changeset	1532 static decomp_T decomp_table[0xfb4f-0xfb20+1] =
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1533 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1534 {0x5e2,0,0}, // 0xfb20 alt ayin
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1535 {0x5d0,0,0}, // 0xfb21 alt alef
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1536 {0x5d3,0,0}, // 0xfb22 alt dalet
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1537 {0x5d4,0,0}, // 0xfb23 alt he
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1538 {0x5db,0,0}, // 0xfb24 alt kaf
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1539 {0x5dc,0,0}, // 0xfb25 alt lamed
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1540 {0x5dd,0,0}, // 0xfb26 alt mem-sofit
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1541 {0x5e8,0,0}, // 0xfb27 alt resh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1542 {0x5ea,0,0}, // 0xfb28 alt tav
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1543 {'+', 0, 0}, // 0xfb29 alt plus
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1544 {0x5e9, 0x5c1, 0}, // 0xfb2a shin+shin-dot
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1545 {0x5e9, 0x5c2, 0}, // 0xfb2b shin+sin-dot
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1546 {0x5e9, 0x5c1, 0x5bc}, // 0xfb2c shin+shin-dot+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1547 {0x5e9, 0x5c2, 0x5bc}, // 0xfb2d shin+sin-dot+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1548 {0x5d0, 0x5b7, 0}, // 0xfb2e alef+patah
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1549 {0x5d0, 0x5b8, 0}, // 0xfb2f alef+qamats
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1550 {0x5d0, 0x5b4, 0}, // 0xfb30 alef+hiriq
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1551 {0x5d1, 0x5bc, 0}, // 0xfb31 bet+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1552 {0x5d2, 0x5bc, 0}, // 0xfb32 gimel+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1553 {0x5d3, 0x5bc, 0}, // 0xfb33 dalet+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1554 {0x5d4, 0x5bc, 0}, // 0xfb34 he+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1555 {0x5d5, 0x5bc, 0}, // 0xfb35 vav+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1556 {0x5d6, 0x5bc, 0}, // 0xfb36 zayin+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1557 {0xfb37, 0, 0}, // 0xfb37 -- UNUSED
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1558 {0x5d8, 0x5bc, 0}, // 0xfb38 tet+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1559 {0x5d9, 0x5bc, 0}, // 0xfb39 yud+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1560 {0x5da, 0x5bc, 0}, // 0xfb3a kaf sofit+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1561 {0x5db, 0x5bc, 0}, // 0xfb3b kaf+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1562 {0x5dc, 0x5bc, 0}, // 0xfb3c lamed+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1563 {0xfb3d, 0, 0}, // 0xfb3d -- UNUSED
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1564 {0x5de, 0x5bc, 0}, // 0xfb3e mem+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1565 {0xfb3f, 0, 0}, // 0xfb3f -- UNUSED
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1566 {0x5e0, 0x5bc, 0}, // 0xfb40 nun+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1567 {0x5e1, 0x5bc, 0}, // 0xfb41 samech+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1568 {0xfb42, 0, 0}, // 0xfb42 -- UNUSED
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1569 {0x5e3, 0x5bc, 0}, // 0xfb43 pe sofit+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1570 {0x5e4, 0x5bc,0}, // 0xfb44 pe+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1571 {0xfb45, 0, 0}, // 0xfb45 -- UNUSED
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1572 {0x5e6, 0x5bc, 0}, // 0xfb46 tsadi+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1573 {0x5e7, 0x5bc, 0}, // 0xfb47 qof+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1574 {0x5e8, 0x5bc, 0}, // 0xfb48 resh+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1575 {0x5e9, 0x5bc, 0}, // 0xfb49 shin+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1576 {0x5ea, 0x5bc, 0}, // 0xfb4a tav+dagesh
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1577 {0x5d5, 0x5b9, 0}, // 0xfb4b vav+holam
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1578 {0x5d1, 0x5bf, 0}, // 0xfb4c bet+rafe
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1579 {0x5db, 0x5bf, 0}, // 0xfb4d kaf+rafe
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1580 {0x5e4, 0x5bf, 0}, // 0xfb4e pe+rafe
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1581 {0x5d0, 0x5dc, 0} // 0xfb4f alef-lamed
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1582 };
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1583
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1584 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1585 mb_decompose(int c, int c1, int c2, int *c3)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1586 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1587 decomp_T d;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1588
4505 d037b9cbdaaa updated for version 7.3.1000 Bram Moolenaar <bram@vim.org> parents: 4466 diff changeset	1589 if (c >= 0xfb20 && c <= 0xfb4f)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1590 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1591 d = decomp_table[c - 0xfb20];
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1592 *c1 = d.a;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1593 *c2 = d.b;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1594 *c3 = d.c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1595 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1596 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1597 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1598 *c1 = c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1599 c2 = c3 = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1600 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1601 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1602
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1603 /*
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1604 * Compare two strings, ignore case if rex.reg_ic set.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1605 * Return 0 if strings match, non-zero otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1606 * Correct the length "*n" when composing characters are ignored.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1607 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1608 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1609 cstrncmp(char_u s1, char_u s2, int *n)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1610 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1611 int result;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1612
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1613 if (!rex.reg_ic)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1614 result = STRNCMP(s1, s2, *n);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1615 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1616 result = MB_STRNICMP(s1, s2, *n);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1617
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1618 // if it failed and it's utf8 and we want to combineignore:
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1619 if (result != 0 && enc_utf8 && rex.reg_icombine)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1620 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1621 char_u str1, str2;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1622 int c1, c2, c11, c12;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1623 int junk;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1624
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1625 // we have to handle the strcmp ourselves, since it is necessary to
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1626 // deal with the composing characters by ignoring them:
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1627 str1 = s1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1628 str2 = s2;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1629 c1 = c2 = 0;
507 a1059cda45f2 updated for version 7.0142 vimboss parents: 492 diff changeset	1630 while ((int)(str1 - s1) < *n)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1631 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1632 c1 = mb_ptr2char_adv(&str1);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1633 c2 = mb_ptr2char_adv(&str2);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1634
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	1635 // Decompose the character if necessary, into 'base' characters.
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	1636 // Currently hard-coded for Hebrew, Arabic to be done...
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1637 if (c1 != c2 && (!rex.reg_ic \|\| utf_fold(c1) != utf_fold(c2)))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1638 {
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	1639 // decomposition necessary?
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1640 mb_decompose(c1, &c11, &junk, &junk);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1641 mb_decompose(c2, &c12, &junk, &junk);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1642 c1 = c11;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1643 c2 = c12;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1644 if (c11 != c12
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1645 && (!rex.reg_ic \|\| utf_fold(c11) != utf_fold(c12)))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1646 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1647 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1648 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1649 result = c2 - c1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1650 if (result == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1651 *n = (int)(str2 - s2);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1652 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1653
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1654 return result;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1655 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1656
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1657 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1658 * cstrchr: This function is used a lot for simple searches, keep it fast!
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1659 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1660 static char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1661 cstrchr(char_u *s, int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1662 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1663 char_u *p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1664 int cc;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1665
15603 639b8318472c patch 8.1.0809: too many #ifdefs Bram Moolenaar <Bram@vim.org> parents: 15555 diff changeset	1666 if (!rex.reg_ic \|\| (!enc_utf8 && mb_char2len(c) > 1))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1667 return vim_strchr(s, c);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1668
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1669 // tolower() and toupper() can be slow, comparing twice should be a lot
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1670 // faster (esp. when using MS Visual C++!).
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1671 // For UTF-8 need to use folded case.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1672 if (enc_utf8 && c > 0x80)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1673 cc = utf_fold(c);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1674 else
1347 302a6aa7aca2 updated for version 7.1-061 vimboss parents: 1341 diff changeset	1675 if (MB_ISUPPER(c))
302a6aa7aca2 updated for version 7.1-061 vimboss parents: 1341 diff changeset	1676 cc = MB_TOLOWER(c);
302a6aa7aca2 updated for version 7.1-061 vimboss parents: 1341 diff changeset	1677 else if (MB_ISLOWER(c))
302a6aa7aca2 updated for version 7.1-061 vimboss parents: 1341 diff changeset	1678 cc = MB_TOUPPER(c);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1679 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1680 return vim_strchr(s, c);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1681
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1682 if (has_mbyte)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1683 {
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	1684 for (p = s; p != NUL; p += (mb_ptr2len)(p))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1685 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1686 if (enc_utf8 && c > 0x80)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1687 {
29527 e7158d889784 patch 9.0.0105: illegal memory access when pattern starts with illegal byte Bram Moolenaar <Bram@vim.org> parents: 29451 diff changeset	1688 int uc = utf_ptr2char(p);
e7158d889784 patch 9.0.0105: illegal memory access when pattern starts with illegal byte Bram Moolenaar <Bram@vim.org> parents: 29451 diff changeset	1689
e7158d889784 patch 9.0.0105: illegal memory access when pattern starts with illegal byte Bram Moolenaar <Bram@vim.org> parents: 29451 diff changeset	1690 // Do not match an illegal byte. E.g. 0xff matches 0xc3 0xbf,
e7158d889784 patch 9.0.0105: illegal memory access when pattern starts with illegal byte Bram Moolenaar <Bram@vim.org> parents: 29451 diff changeset	1691 // not 0xff.
e7158d889784 patch 9.0.0105: illegal memory access when pattern starts with illegal byte Bram Moolenaar <Bram@vim.org> parents: 29451 diff changeset	1692 if ((uc < 0x80 \|\| uc != *p) && utf_fold(uc) == cc)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1693 return p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1694 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1695 else if (p == c \|\| p == cc)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1696 return p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1697 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1698 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1699 else
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1700 // Faster version for when there are no multi-byte characters.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1701 for (p = s; *p != NUL; ++p)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1702 if (p == c \|\| p == cc)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1703 return p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1704
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1705 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1706 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1707
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1708 ////////////////////////////////////////////////////////////////
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1709 // regsub stuff //
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1710 ////////////////////////////////////////////////////////////////
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1711
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1712 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1713 * We should define ftpr as a pointer to a function returning a pointer to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1714 * a function returning a pointer to a function ...
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1715 * This is impossible, so we declare a pointer to a function returning a
22151 01cab6232a9a patch 8.2.1625: compiler warning for use of fptr_T Bram Moolenaar <Bram@vim.org> parents: 22143 diff changeset	1716 * void pointer. This should work for all compilers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1717 */
22151 01cab6232a9a patch 8.2.1625: compiler warning for use of fptr_T Bram Moolenaar <Bram@vim.org> parents: 22143 diff changeset	1718 typedef void ((fptr_T)(int *, int));
7805 0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077 Christian Brabandt <cb@256bit.org> parents: 7009 diff changeset	1719
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1720 static int vim_regsub_both(char_u source, typval_T expr, char_u *dest, int destlen, int flags);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1721
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1722 static fptr_T
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1723 do_upper(int *d, int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1724 {
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1725 *d = MB_TOUPPER(c);
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1726
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1727 return (fptr_T)NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1728 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1729
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1730 static fptr_T
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1731 do_Upper(int *d, int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1732 {
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1733 *d = MB_TOUPPER(c);
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1734
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1735 return (fptr_T)do_Upper;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1736 }
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1737
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1738 static fptr_T
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1739 do_lower(int *d, int c)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1740 {
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1741 *d = MB_TOLOWER(c);
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1742
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1743 return (fptr_T)NULL;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1744 }
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1745
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1746 static fptr_T
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1747 do_Lower(int *d, int c)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1748 {
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1749 *d = MB_TOLOWER(c);
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1750
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1751 return (fptr_T)do_Lower;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1752 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1753
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1754 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1755 * regtilde(): Replace tildes in the pattern by the old pattern.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1756 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1757 * Short explanation of the tilde: It stands for the previous replacement
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1758 * pattern. If that previous pattern also contains a ~ we should go back a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1759 * step further... But we insert the previous pattern into the current one
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1760 * and remember that.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1761 * This still does not handle the case where "magic" changes. So require the
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	1762 * user to keep his hands off of "magic".
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1763 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1764 * The tildes are parsed once before the first call to vim_regsub().
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1765 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1766 char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1767 regtilde(char_u *source, int magic)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1768 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1769 char_u *newsub = source;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1770 char_u *tmpsub;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1771 char_u *p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1772 int len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1773 int prevlen;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1774
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1775 for (p = newsub; *p; ++p)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1776 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1777 if ((p == '~' && magic) \|\| (p == '\\' && *(p + 1) == '~' && !magic))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1778 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1779 if (reg_prev_sub != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1780 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1781 // length = len(newsub) - 1 + len(prev_sub) + 1
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1782 prevlen = (int)STRLEN(reg_prev_sub);
16764 ef00b6bc186b patch 8.1.1384: using "int" for alloc() often results in compiler warnings Bram Moolenaar <Bram@vim.org> parents: 16634 diff changeset	1783 tmpsub = alloc(STRLEN(newsub) + prevlen);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1784 if (tmpsub != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1785 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1786 // copy prefix
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1787 len = (int)(p - newsub); // not including ~
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1788 mch_memmove(tmpsub, newsub, (size_t)len);
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1789 // interpret tilde
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1790 mch_memmove(tmpsub + len, reg_prev_sub, (size_t)prevlen);
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1791 // copy postfix
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1792 if (!magic)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1793 ++p; // back off backslash
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1794 STRCPY(tmpsub + len + prevlen, p + 1);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1795
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1796 if (newsub != source) // already allocated newsub
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1797 vim_free(newsub);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1798 newsub = tmpsub;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1799 p = newsub + len + prevlen;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1800 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1801 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1802 else if (magic)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1803 STRMOVE(p, p + 1); // remove '~'
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1804 else
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1805 STRMOVE(p, p + 2); // remove '\~'
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1806 --p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1807 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1808 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1809 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1810 if (*p == '\\' && p[1]) // skip escaped characters
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1811 ++p;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1812 if (has_mbyte)
474 a5fcf36ef512 updated for version 7.0127 vimboss parents: 418 diff changeset	1813 p += (*mb_ptr2len)(p) - 1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1814 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1815 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1816
29410 be069ab9d583 patch 9.0.0047: using freed memory with recursive substitute Bram Moolenaar <Bram@vim.org> parents: 29272 diff changeset	1817 // Store a copy of newsub in reg_prev_sub. It is always allocated,
be069ab9d583 patch 9.0.0047: using freed memory with recursive substitute Bram Moolenaar <Bram@vim.org> parents: 29272 diff changeset	1818 // because recursive calls may make the returned string invalid.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1819 vim_free(reg_prev_sub);
29410 be069ab9d583 patch 9.0.0047: using freed memory with recursive substitute Bram Moolenaar <Bram@vim.org> parents: 29272 diff changeset	1820 reg_prev_sub = vim_strsave(newsub);
be069ab9d583 patch 9.0.0047: using freed memory with recursive substitute Bram Moolenaar <Bram@vim.org> parents: 29272 diff changeset	1821
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1822 return newsub;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1823 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1824
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1825 #ifdef FEAT_EVAL
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1826 static int can_f_submatch = FALSE; // TRUE when submatch() can be used
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1827
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1828 // These pointers are used for reg_submatch(). Needed for when the
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1829 // substitution string is an expression that contains a call to substitute()
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1830 // and submatch().
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1831 typedef struct {
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1832 regmatch_T *sm_match;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1833 regmmatch_T *sm_mmatch;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1834 linenr_T sm_firstlnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1835 linenr_T sm_maxline;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1836 int sm_line_lbr;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1837 } regsubmatch_T;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1838
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1839 static regsubmatch_T rsm; // can only be used when can_f_submatch is TRUE
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1840 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1841
17966 46f95606b9ec patch 8.1.1979: code for handling file names is spread out Bram Moolenaar <Bram@vim.org> parents: 17789 diff changeset	1842 #ifdef FEAT_EVAL
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1843
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1844 /*
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1845 * Put the submatches in "argv[argskip]" which is a list passed into
23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1846 * call_func() by vim_regsub_both().
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1847 */
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1848 static int
30281 d3cfd12839ef patch 9.0.0476: varargs does not work for replacement function of substitute() Bram Moolenaar <Bram@vim.org> parents: 29888 diff changeset	1849 fill_submatch_list(int argc UNUSED, typval_T argv, int argskip, ufunc_T fp)
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1850 {
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1851 listitem_T *li;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1852 int i;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1853 char_u *s;
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1854 typval_T *listarg = argv + argskip;
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1855
30289 085406413994 patch 9.0.0480: cannot use a :def varargs function with substitute() Bram Moolenaar <Bram@vim.org> parents: 30281 diff changeset	1856 if (!has_varargs(fp) && fp->uf_args.ga_len <= argskip)
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1857 // called function doesn't take a submatches argument
23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1858 return argskip;
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1859
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1860 // Relies on sl_list to be the first item in staticList10_T.
23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1861 init_static_list((staticList10_T *)(listarg->vval.v_list));
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1862
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1863 // There are always 10 list items in staticList10_T.
23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1864 li = listarg->vval.v_list->lv_first;
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1865 for (i = 0; i < 10; ++i)
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1866 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1867 s = rsm.sm_match->startp[i];
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1868 if (s == NULL \|\| rsm.sm_match->endp[i] == NULL)
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1869 s = NULL;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1870 else
20830 9064044fd4f6 patch 8.2.0967: unnecessary type casts for vim_strnsave() Bram Moolenaar <Bram@vim.org> parents: 20113 diff changeset	1871 s = vim_strnsave(s, rsm.sm_match->endp[i] - s);
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1872 li->li_tv.v_type = VAR_STRING;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1873 li->li_tv.vval.v_string = s;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1874 li = li->li_next;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1875 }
18572 23fef64352a1 patch 8.1.2280: crash when passing partial to substitute() Bram Moolenaar <Bram@vim.org> parents: 18019 diff changeset	1876 return argskip + 1;
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1877 }
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1878
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1879 static void
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1880 clear_submatch_list(staticList10_T *sl)
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1881 {
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1882 int i;
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1883
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1884 for (i = 0; i < 10; ++i)
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1885 vim_free(sl->sl_items[i].li_tv.vval.v_string);
172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1886 }
17966 46f95606b9ec patch 8.1.1979: code for handling file names is spread out Bram Moolenaar <Bram@vim.org> parents: 17789 diff changeset	1887 #endif
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	1888
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1889 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1890 * vim_regsub() - perform substitutions after a vim_regexec() or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1891 * vim_regexec_multi() match.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1892 *
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1893 * If "flags" has REGSUB_COPY really copy into "dest[destlen]".
30986 360f286b5869 patch 9.0.0828: various typos Bram Moolenaar <Bram@vim.org> parents: 30598 diff changeset	1894 * Otherwise nothing is copied, only compute the length of the result.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1895 *
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1896 * If "flags" has REGSUB_MAGIC then behave like 'magic' is set.
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1897 *
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1898 * If "flags" has REGSUB_BACKSLASH a backslash will be removed later, need to
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1899 * double them to keep them, and insert a backslash before a CR to avoid it
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1900 * being replaced with a line break later.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1901 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1902 * Note: The matched text must not change between the call of
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1903 * vim_regexec()/vim_regexec_multi() and vim_regsub()! It would make the back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1904 * references invalid!
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1905 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1906 * Returns the size of the replacement, including terminating NUL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1907 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1908 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1909 vim_regsub(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1910 regmatch_T *rmp,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1911 char_u *source,
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	1912 typval_T *expr,
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1913 char_u *dest,
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1914 int destlen,
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1915 int flags)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1916 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1917 int result;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1918 regexec_T rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1919 int rex_in_use_save = rex_in_use;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1920
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1921 if (rex_in_use)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1922 // Being called recursively, save the state.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1923 rex_save = rex;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1924 rex_in_use = TRUE;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1925
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1926 rex.reg_match = rmp;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1927 rex.reg_mmatch = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1928 rex.reg_maxline = 0;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1929 rex.reg_buf = curbuf;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1930 rex.reg_line_lbr = TRUE;
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1931 result = vim_regsub_both(source, expr, dest, destlen, flags);
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1932
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1933 rex_in_use = rex_in_use_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1934 if (rex_in_use)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1935 rex = rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1936
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1937 return result;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1938 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1939
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1940 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1941 vim_regsub_multi(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1942 regmmatch_T *rmp,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1943 linenr_T lnum,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1944 char_u *source,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1945 char_u *dest,
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1946 int destlen,
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1947 int flags)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1948 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1949 int result;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1950 regexec_T rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1951 int rex_in_use_save = rex_in_use;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1952
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1953 if (rex_in_use)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1954 // Being called recursively, save the state.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1955 rex_save = rex;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1956 rex_in_use = TRUE;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1957
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1958 rex.reg_match = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1959 rex.reg_mmatch = rmp;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	1960 rex.reg_buf = curbuf; // always works on the current buffer!
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1961 rex.reg_firstlnum = lnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1962 rex.reg_maxline = curbuf->b_ml.ml_line_count - lnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1963 rex.reg_line_lbr = FALSE;
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1964 result = vim_regsub_both(source, NULL, dest, destlen, flags);
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1965
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1966 rex_in_use = rex_in_use_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1967 if (rex_in_use)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1968 rex = rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1969
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	1970 return result;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1971 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1972
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1973 #if defined(FEAT_EVAL) \|\| defined(PROTO)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1974 // When nesting more than a couple levels it's probably a mistake.
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1975 # define MAX_REGSUB_NESTING 4
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1976 static char_u *eval_result[MAX_REGSUB_NESTING] = {NULL, NULL, NULL, NULL};
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1977
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1978 # if defined(EXITFREE) \|\| defined(PROTO)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1979 void
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1980 free_resub_eval_result(void)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1981 {
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1982 int i;
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1983
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1984 for (i = 0; i < MAX_REGSUB_NESTING; ++i)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1985 VIM_CLEAR(eval_result[i]);
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1986 }
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1987 # endif
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1988 #endif
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	1989
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1990 static int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1991 vim_regsub_both(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1992 char_u *source,
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	1993 typval_T *expr,
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	1994 char_u *dest,
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1995 int destlen,
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	1996 int flags)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1997 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1998 char_u *src;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1999 char_u *dst;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2000 char_u *s;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2001 int c;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2002 int cc;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2003 int no = -1;
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2004 fptr_T func_all = (fptr_T)NULL;
7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2005 fptr_T func_one = (fptr_T)NULL;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2006 linenr_T clnum = 0; // init for GCC
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2007 int len = 0; // init for GCC
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2008 #ifdef FEAT_EVAL
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2009 static int nesting = 0;
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2010 int nested;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2011 #endif
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2012 int copy = flags & REGSUB_COPY;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2013
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2014 // Be paranoid...
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2015 if ((source == NULL && expr == NULL) \|\| dest == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2016 {
25306 078edc1821bf patch 8.2.3190: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 24768 diff changeset	2017 emsg(_(e_null_argument));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2018 return 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2019 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2020 if (prog_magic_wrong())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2021 return 0;
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2022 #ifdef FEAT_EVAL
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2023 if (nesting == MAX_REGSUB_NESTING)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2024 {
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2025 emsg(_(e_substitute_nesting_too_deep));
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2026 return 0;
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2027 }
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2028 nested = nesting;
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2029 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2030 src = source;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2031 dst = dest;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2032
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2033 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2034 * When the substitute part starts with "\=" evaluate it as an expression.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2035 */
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2036 if (expr != NULL \|\| (source[0] == '\\' && source[1] == '='))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2037 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2038 #ifdef FEAT_EVAL
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2039 // To make sure that the length doesn't change between checking the
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2040 // length and copying the string, and to speed up things, the
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	2041 // resulting string is saved from the call with
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	2042 // "flags & REGSUB_COPY" == 0 to the call with
b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	2043 // "flags & REGSUB_COPY" != 0.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2044 if (copy)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2045 {
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2046 if (eval_result[nested] != NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2047 {
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2048 STRCPY(dest, eval_result[nested]);
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2049 dst += STRLEN(eval_result[nested]);
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2050 VIM_CLEAR(eval_result[nested]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2051 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2052 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2053 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2054 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2055 int prev_can_f_submatch = can_f_submatch;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2056 regsubmatch_T rsm_save;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2057
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2058 VIM_CLEAR(eval_result[nested]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2059
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2060 // The expression may contain substitute(), which calls us
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2061 // recursively. Make sure submatch() gets the text from the first
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2062 // level.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2063 if (can_f_submatch)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2064 rsm_save = rsm;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2065 can_f_submatch = TRUE;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2066 rsm.sm_match = rex.reg_match;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2067 rsm.sm_mmatch = rex.reg_mmatch;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2068 rsm.sm_firstlnum = rex.reg_firstlnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2069 rsm.sm_maxline = rex.reg_maxline;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2070 rsm.sm_line_lbr = rex.reg_line_lbr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2071
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2072 // Although unlikely, it is possible that the expression invokes a
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2073 // substitute command (it might fail, but still). Therefore keep
29272 8175cd4c8fdd patch 8.2.5154: still mentioning version8, some cosmetic issues Bram Moolenaar <Bram@vim.org> parents: 29255 diff changeset	2074 // an array of eval results.
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2075 ++nesting;
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2076
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2077 if (expr != NULL)
bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2078 {
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	2079 typval_T argv[2];
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2080 char_u buf[NUMBUFLEN];
bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2081 typval_T rettv;
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	2082 staticList10_T matchList;
17606 ff097edaae89 patch 8.1.1800: function call functions have too many arguments Bram Moolenaar <Bram@vim.org> parents: 17444 diff changeset	2083 funcexe_T funcexe;
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2084
bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2085 rettv.v_type = VAR_STRING;
bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2086 rettv.vval.v_string = NULL;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2087 argv[0].v_type = VAR_LIST;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2088 argv[0].vval.v_list = &matchList.sl_list;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2089 matchList.sl_list.lv_len = 0;
20007 aadd1cae2ff5 patch 8.2.0559: clearing a struct is verbose Bram Moolenaar <Bram@vim.org> parents: 19892 diff changeset	2090 CLEAR_FIELD(funcexe);
26534 28745eec1dda patch 8.2.3796: the funcexe_T struct members are not named consistently Bram Moolenaar <Bram@vim.org> parents: 26436 diff changeset	2091 funcexe.fe_argv_func = fill_submatch_list;
28745eec1dda patch 8.2.3796: the funcexe_T struct members are not named consistently Bram Moolenaar <Bram@vim.org> parents: 26436 diff changeset	2092 funcexe.fe_evaluate = TRUE;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2093 if (expr->v_type == VAR_FUNC)
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2094 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2095 s = expr->vval.v_string;
17606 ff097edaae89 patch 8.1.1800: function call functions have too many arguments Bram Moolenaar <Bram@vim.org> parents: 17444 diff changeset	2096 call_func(s, -1, &rettv, 1, argv, &funcexe);
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2097 }
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2098 else if (expr->v_type == VAR_PARTIAL)
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2099 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2100 partial_T *partial = expr->vval.v_partial;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2101
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2102 s = partial_name(partial);
26534 28745eec1dda patch 8.2.3796: the funcexe_T struct members are not named consistently Bram Moolenaar <Bram@vim.org> parents: 26436 diff changeset	2103 funcexe.fe_partial = partial;
17606 ff097edaae89 patch 8.1.1800: function call functions have too many arguments Bram Moolenaar <Bram@vim.org> parents: 17444 diff changeset	2104 call_func(s, -1, &rettv, 1, argv, &funcexe);
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2105 }
28692 bfd8e25fa207 patch 8.2.4870: Vim9: expression in :substitute is not compiled Bram Moolenaar <Bram@vim.org> parents: 28572 diff changeset	2106 else if (expr->v_type == VAR_INSTR)
bfd8e25fa207 patch 8.2.4870: Vim9: expression in :substitute is not compiled Bram Moolenaar <Bram@vim.org> parents: 28572 diff changeset	2107 {
bfd8e25fa207 patch 8.2.4870: Vim9: expression in :substitute is not compiled Bram Moolenaar <Bram@vim.org> parents: 28572 diff changeset	2108 exe_typval_instr(expr, &rettv);
bfd8e25fa207 patch 8.2.4870: Vim9: expression in :substitute is not compiled Bram Moolenaar <Bram@vim.org> parents: 28572 diff changeset	2109 }
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2110 if (matchList.sl_list.lv_len > 0)
18576 e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2111 // fill_submatch_list() was called
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2112 clear_submatch_list(&matchList);
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2113
18576 e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2114 if (rettv.v_type == VAR_UNKNOWN)
e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2115 // something failed, no need to report another error
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2116 eval_result[nested] = NULL;
18576 e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2117 else
e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2118 {
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2119 eval_result[nested] = tv_get_string_buf_chk(&rettv, buf);
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2120 if (eval_result[nested] != NULL)
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2121 eval_result[nested] = vim_strsave(eval_result[nested]);
18576 e9675870c480 patch 8.1.2282: crash when passing many arguments through a partial Bram Moolenaar <Bram@vim.org> parents: 18572 diff changeset	2122 }
9626 172131507c85 commit https://github.com/vim/vim/commit/df48fb456fb6bf63d94cad9b302ff01d8ee8d311 Christian Brabandt <cb@256bit.org> parents: 9589 diff changeset	2123 clear_tv(&rettv);
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2124 }
24488 f293bb501b30 patch 8.2.2784: Vim9: cannot use =expr in :substitute Bram Moolenaar <Bram@vim.org> parents: 23505 diff changeset	2125 else if (substitute_instr != NULL)
f293bb501b30 patch 8.2.2784: Vim9: cannot use =expr in :substitute Bram Moolenaar <Bram@vim.org> parents: 23505 diff changeset	2126 // Execute instructions from ISN_SUBSTITUTE.
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2127 eval_result[nested] = exe_substitute_instr();
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2128 else
30598 37aa9fd2ed72 patch 9.0.0634: evaluating "expr" options has more overhead than needed Bram Moolenaar <Bram@vim.org> parents: 30355 diff changeset	2129 eval_result[nested] = eval_to_string(source + 2, TRUE, FALSE);
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2130 --nesting;
9589 bf204ab1ce7d commit https://github.com/vim/vim/commit/72ab729c3dcdea0fba44d8e676602c847e841bcd Christian Brabandt <cb@256bit.org> parents: 9015 diff changeset	2131
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2132 if (eval_result[nested] != NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2133 {
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2134 int had_backslash = FALSE;
b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2135
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2136 for (s = eval_result[nested]; *s != NUL; MB_PTR_ADV(s))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2137 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2138 // Change NL to CR, so that it becomes a line break,
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2139 // unless called from vim_regexec_nl().
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2140 // Skip over a backslashed character.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2141 if (*s == NL && !rsm.sm_line_lbr)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2142 *s = CAR;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2143 else if (*s == '\\' && s[1] != NUL)
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2144 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2145 ++s;
2173 ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2146 /* Change NL to CR here too, so that this works:
ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2147 * :s/abc\\\ndef/\="aaa\\\nbbb"/ on text:
ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2148 * abc\
ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2149 * def
2904 c249d9aa60f7 updated for version 7.3.225 Bram Moolenaar <bram@vim.org> parents: 2578 diff changeset	2150 * Not when called from vim_regexec_nl().
2173 ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2151 */
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2152 if (*s == NL && !rsm.sm_line_lbr)
2173 ecb9c2b70b0f updated for version 7.2.437 Bram Moolenaar <bram@vim.org> parents: 2125 diff changeset	2153 *s = CAR;
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2154 had_backslash = TRUE;
b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2155 }
b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2156 }
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2157 if (had_backslash && (flags & REGSUB_BACKSLASH))
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2158 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2159 // Backslashes will be consumed, need to double them.
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2160 s = vim_strsave_escaped(eval_result[nested], (char_u *)"\\");
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2161 if (s != NULL)
b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2162 {
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2163 vim_free(eval_result[nested]);
5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2164 eval_result[nested] = s;
2125 b8744d1982d1 updated for version 7.2.407 Bram Moolenaar <bram@zimbu.org> parents: 2012 diff changeset	2165 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2166 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2167
29255 5ebc561444fe patch 8.2.5146: memory leak when substitute expression nests Bram Moolenaar <Bram@vim.org> parents: 29245 diff changeset	2168 dst += STRLEN(eval_result[nested]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2169 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2170
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2171 can_f_submatch = prev_can_f_submatch;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2172 if (can_f_submatch)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2173 rsm = rsm_save;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2174 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2175 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2176 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2177 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2178 while ((c = *src++) != NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2179 {
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2180 if (c == '&' && (flags & REGSUB_MAGIC))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2181 no = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2182 else if (c == '\\' && *src != NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2183 {
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2184 if (*src == '&' && !(flags & REGSUB_MAGIC))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2185 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2186 ++src;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2187 no = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2188 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2189 else if ('0' <= src && src <= '9')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2190 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2191 no = *src++ - '0';
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2192 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2193 else if (vim_strchr((char_u )"uUlLeE", src))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2194 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2195 switch (*src++)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2196 {
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2197 case 'u': func_one = (fptr_T)do_upper;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2198 continue;
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2199 case 'U': func_all = (fptr_T)do_Upper;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2200 continue;
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2201 case 'l': func_one = (fptr_T)do_lower;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2202 continue;
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2203 case 'L': func_all = (fptr_T)do_Lower;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2204 continue;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2205 case 'e':
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2206 case 'E': func_one = func_all = (fptr_T)NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2207 continue;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2208 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2209 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2210 }
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2211 if (no < 0) // Ordinary character.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2212 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2213 if (c == K_SPECIAL && src[0] != NUL && src[1] != NUL)
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2214 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2215 // Copy a special key as-is.
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2216 if (copy)
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2217 {
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2218 if (dst + 3 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2219 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2220 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2221 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2222 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2223 *dst++ = c;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2224 dst++ = src++;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2225 dst++ = src++;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2226 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2227 else
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2228 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2229 dst += 3;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2230 src += 2;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2231 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2232 continue;
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2233 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2234
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2235 if (c == '\\' && *src != NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2236 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2237 // Check for abbreviations -- webb
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2238 switch (*src)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2239 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2240 case 'r': c = CAR; ++src; break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2241 case 'n': c = NL; ++src; break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2242 case 't': c = TAB; ++src; break;
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2243 // Oh no! \e already has meaning in subst pat :-(
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2244 // case 'e': c = ESC; ++src; break;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2245 case 'b': c = Ctrl_H; ++src; break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2246
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2247 // If "backslash" is TRUE the backslash will be removed
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2248 // later. Used to insert a literal CR.
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2249 default: if (flags & REGSUB_BACKSLASH)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2250 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2251 if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2252 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2253 if (dst + 1 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2254 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2255 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2256 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2257 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2258 *dst = '\\';
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2259 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2260 ++dst;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2261 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2262 c = *src++;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2263 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2264 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2265 else if (has_mbyte)
95dac6af3b3a updated for version 7.0232 vimboss parents: 772 diff changeset	2266 c = mb_ptr2char(src - 1);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2267
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2268 // Write to buffer, if copy is set.
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2269 if (func_one != (fptr_T)NULL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2270 // Turbo C complains without the typecast
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2271 func_one = (fptr_T)(func_one(&cc, c));
7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2272 else if (func_all != (fptr_T)NULL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2273 // Turbo C complains without the typecast
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2274 func_all = (fptr_T)(func_all(&cc, c));
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2275 else // just copy
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2276 cc = c;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2277
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2278 if (has_mbyte)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2279 {
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2280 int totlen = mb_ptr2len(src - 1);
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2281 int charlen = mb_char2len(cc);
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2282
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2283 if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2284 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2285 if (dst + charlen > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2286 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2287 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2288 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2289 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2290 mb_char2bytes(cc, dst);
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2291 }
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2292 dst += charlen - 1;
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2293 if (enc_utf8)
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2294 {
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2295 int clen = utf_ptr2len(src - 1);
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2296
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2297 // If the character length is shorter than "totlen", there
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2298 // are composing characters; copy them as-is.
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2299 if (clen < totlen)
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2300 {
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2301 if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2302 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2303 if (dst + totlen - clen > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2304 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2305 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2306 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2307 }
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2308 mch_memmove(dst + 1, src - 1 + clen,
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2309 (size_t)(totlen - clen));
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2310 }
2307 81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2311 dst += totlen - clen;
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2312 }
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2313 }
81527f127fb1 Fix: Composing characters in :s substitute text were dropped. Bram Moolenaar <bram@vim.org> parents: 2247 diff changeset	2314 src += totlen - 1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2315 }
15603 639b8318472c patch 8.1.0809: too many #ifdefs Bram Moolenaar <Bram@vim.org> parents: 15555 diff changeset	2316 else if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2317 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2318 if (dst + 1 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2319 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2320 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2321 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2322 }
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2323 *dst = cc;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2324 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2325 dst++;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2326 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2327 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2328 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2329 if (REG_MULTI)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2330 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2331 clnum = rex.reg_mmatch->startpos[no].lnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2332 if (clnum < 0 \|\| rex.reg_mmatch->endpos[no].lnum < 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2333 s = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2334 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2335 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2336 s = reg_getline(clnum) + rex.reg_mmatch->startpos[no].col;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2337 if (rex.reg_mmatch->endpos[no].lnum == clnum)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2338 len = rex.reg_mmatch->endpos[no].col
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2339 - rex.reg_mmatch->startpos[no].col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2340 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2341 len = (int)STRLEN(s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2342 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2343 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2344 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2345 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2346 s = rex.reg_match->startp[no];
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2347 if (rex.reg_match->endp[no] == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2348 s = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2349 else
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2350 len = (int)(rex.reg_match->endp[no] - s);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2351 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2352 if (s != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2353 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2354 for (;;)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2355 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2356 if (len == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2357 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2358 if (REG_MULTI)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2359 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2360 if (rex.reg_mmatch->endpos[no].lnum == clnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2361 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2362 if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2363 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2364 if (dst + 1 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2365 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2366 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2367 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2368 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2369 *dst = CAR;
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2370 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2371 ++dst;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2372 s = reg_getline(++clnum);
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2373 if (rex.reg_mmatch->endpos[no].lnum == clnum)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2374 len = rex.reg_mmatch->endpos[no].col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2375 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2376 len = (int)STRLEN(s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2377 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2378 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2379 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2380 }
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2381 else if (*s == NUL) // we hit NUL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2382 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2383 if (copy)
25306 078edc1821bf patch 8.2.3190: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 24768 diff changeset	2384 iemsg(_(e_damaged_match_string));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2385 goto exit;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2386 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2387 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2388 {
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2389 if ((flags & REGSUB_BACKSLASH)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2390 && (s == CAR \|\| s == '\\'))
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2391 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2392 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2393 * Insert a backslash in front of a CR, otherwise
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2394 * it will be replaced by a line break.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2395 * Number of backslashes will be halved later,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2396 * double them here.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2397 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2398 if (copy)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2399 {
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2400 if (dst + 2 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2401 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2402 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2403 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2404 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2405 dst[0] = '\\';
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2406 dst[1] = *s;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2407 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2408 dst += 2;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2409 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2410 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2411 {
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2412 if (has_mbyte)
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2413 c = mb_ptr2char(s);
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2414 else
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2415 c = *s;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2416
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2417 if (func_one != (fptr_T)NULL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2418 // Turbo C complains without the typecast
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2419 func_one = (fptr_T)(func_one(&cc, c));
7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2420 else if (func_all != (fptr_T)NULL)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2421 // Turbo C complains without the typecast
4244 7faeece39228 updated for version 7.3.873 Bram Moolenaar <bram@vim.org> parents: 4176 diff changeset	2422 func_all = (fptr_T)(func_all(&cc, c));
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2423 else // just copy
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2424 cc = c;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2425
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2426 if (has_mbyte)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2427 {
1332 6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2428 int l;
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2429 int charlen;
1332 6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2430
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2431 // Copy composing characters separately, one
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2432 // at a time.
1332 6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2433 if (enc_utf8)
6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2434 l = utf_ptr2len(s) - 1;
6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2435 else
6d421b3c485b updated for version 7.1-046 vimboss parents: 1209 diff changeset	2436 l = mb_ptr2len(s) - 1;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2437
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2438 s += l;
aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2439 len -= l;
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2440 charlen = mb_char2len(cc);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2441 if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2442 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2443 if (dst + charlen > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2444 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2445 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2446 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2447 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2448 mb_char2bytes(cc, dst);
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2449 }
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2450 dst += charlen - 1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2451 }
15603 639b8318472c patch 8.1.0809: too many #ifdefs Bram Moolenaar <Bram@vim.org> parents: 15555 diff changeset	2452 else if (copy)
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2453 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2454 if (dst + 1 > dest + destlen)
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2455 {
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2456 iemsg("vim_regsub_both(): not enough space");
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2457 return 0;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2458 }
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2459 *dst = cc;
c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2460 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2461 dst++;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2462 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 741 diff changeset	2463
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2464 ++s;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2465 --len;
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 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2469 no = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2470 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2471 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2472 if (copy)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2473 *dst = NUL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2474
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2475 exit:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2476 return (int)((dst - dest) + 1);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2477 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2478
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2479 #ifdef FEAT_EVAL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2480 /*
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2481 * Call reg_getline() with the line numbers from the submatch. If a
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2482 * substitute() was used the reg_maxline and other values have been
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2483 * overwritten.
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2484 */
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2485 static char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2486 reg_getline_submatch(linenr_T lnum)
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2487 {
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2488 char_u *s;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2489 linenr_T save_first = rex.reg_firstlnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2490 linenr_T save_max = rex.reg_maxline;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2491
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2492 rex.reg_firstlnum = rsm.sm_firstlnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2493 rex.reg_maxline = rsm.sm_maxline;
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2494
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2495 s = reg_getline(lnum);
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2496
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2497 rex.reg_firstlnum = save_first;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2498 rex.reg_maxline = save_max;
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2499 return s;
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2500 }
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2501
a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2502 /*
1209 070f2ac50cf8 updated for version 7.1b vimboss parents: 1148 diff changeset	2503 * Used for the submatch() function: get the string from the n'th submatch in
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2504 * allocated memory.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2505 * Returns NULL when not in a ":s" command and for a non-existing submatch.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2506 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2507 char_u *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2508 reg_submatch(int no)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2509 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2510 char_u *retval = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2511 char_u *s;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2512 int len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2513 int round;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2514 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2515
840 2c885fab04e3 updated for version 7.0e06 vimboss parents: 798 diff changeset	2516 if (!can_f_submatch \|\| no < 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2517 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2518
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2519 if (rsm.sm_match == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2520 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2521 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2522 * First round: compute the length and allocate memory.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2523 * Second round: copy the text.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2524 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2525 for (round = 1; round <= 2; ++round)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2526 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2527 lnum = rsm.sm_mmatch->startpos[no].lnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2528 if (lnum < 0 \|\| rsm.sm_mmatch->endpos[no].lnum < 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2529 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2530
16040 13ab270dd68d patch 8.1.1025: checking NULL pointer after addition Bram Moolenaar <Bram@vim.org> parents: 15967 diff changeset	2531 s = reg_getline_submatch(lnum);
13ab270dd68d patch 8.1.1025: checking NULL pointer after addition Bram Moolenaar <Bram@vim.org> parents: 15967 diff changeset	2532 if (s == NULL) // anti-crash check, cannot happen?
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2533 break;
16040 13ab270dd68d patch 8.1.1025: checking NULL pointer after addition Bram Moolenaar <Bram@vim.org> parents: 15967 diff changeset	2534 s += rsm.sm_mmatch->startpos[no].col;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2535 if (rsm.sm_mmatch->endpos[no].lnum == lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2536 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2537 // Within one line: take form start to end col.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2538 len = rsm.sm_mmatch->endpos[no].col
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2539 - rsm.sm_mmatch->startpos[no].col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2540 if (round == 2)
418 84825cc6f049 updated for version 7.0109 vimboss parents: 410 diff changeset	2541 vim_strncpy(retval, s, len);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2542 ++len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2543 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2544 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2545 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2546 // Multiple lines: take start line from start col, middle
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2547 // lines completely and end line up to end col.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2548 len = (int)STRLEN(s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2549 if (round == 2)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2550 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2551 STRCPY(retval, s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2552 retval[len] = '\n';
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2553 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2554 ++len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2555 ++lnum;
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2556 while (lnum < rsm.sm_mmatch->endpos[no].lnum)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2557 {
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2558 s = reg_getline_submatch(lnum++);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2559 if (round == 2)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2560 STRCPY(retval + len, s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2561 len += (int)STRLEN(s);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2562 if (round == 2)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2563 retval[len] = '\n';
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2564 ++len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2565 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2566 if (round == 2)
2011 a3a4be6bdcdd updated for version 7.2-308 vimboss parents: 2010 diff changeset	2567 STRNCPY(retval + len, reg_getline_submatch(lnum),
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2568 rsm.sm_mmatch->endpos[no].col);
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2569 len += rsm.sm_mmatch->endpos[no].col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2570 if (round == 2)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2571 retval[len] = NUL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2572 ++len;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2573 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2574
840 2c885fab04e3 updated for version 7.0e06 vimboss parents: 798 diff changeset	2575 if (retval == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2576 {
16768 695d9ef00b03 patch 8.1.1386: unessesary type casts for lalloc() Bram Moolenaar <Bram@vim.org> parents: 16764 diff changeset	2577 retval = alloc(len);
840 2c885fab04e3 updated for version 7.0e06 vimboss parents: 798 diff changeset	2578 if (retval == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2579 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2580 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2581 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2582 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2583 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2584 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2585 s = rsm.sm_match->startp[no];
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2586 if (s == NULL \|\| rsm.sm_match->endp[no] == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2587 retval = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2588 else
20830 9064044fd4f6 patch 8.2.0967: unnecessary type casts for vim_strnsave() Bram Moolenaar <Bram@vim.org> parents: 20113 diff changeset	2589 retval = vim_strnsave(s, rsm.sm_match->endp[no] - s);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2590 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2591
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2592 return retval;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2593 }
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2594
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2595 /*
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2596 * Used for the submatch() function with the optional non-zero argument: get
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2597 * the list of strings from the n'th submatch in allocated memory with NULs
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2598 * represented in NLs.
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2599 * Returns a list of allocated strings. Returns NULL when not in a ":s"
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2600 * command, for a non-existing submatch and for any error.
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2601 */
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2602 list_T *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2603 reg_submatch_list(int no)
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2604 {
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2605 char_u *s;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2606 linenr_T slnum;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2607 linenr_T elnum;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2608 colnr_T scol;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2609 colnr_T ecol;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2610 int i;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2611 list_T *list;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2612 int error = FALSE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2613
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2614 if (!can_f_submatch \|\| no < 0)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2615 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2616
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2617 if (rsm.sm_match == NULL)
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2618 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2619 slnum = rsm.sm_mmatch->startpos[no].lnum;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2620 elnum = rsm.sm_mmatch->endpos[no].lnum;
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2621 if (slnum < 0 \|\| elnum < 0)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2622 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2623
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2624 scol = rsm.sm_mmatch->startpos[no].col;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2625 ecol = rsm.sm_mmatch->endpos[no].col;
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2626
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2627 list = list_alloc();
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2628 if (list == NULL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2629 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2630
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2631 s = reg_getline_submatch(slnum) + scol;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2632 if (slnum == elnum)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2633 {
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2634 if (list_append_string(list, s, ecol - scol) == FAIL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2635 error = TRUE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2636 }
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2637 else
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2638 {
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2639 if (list_append_string(list, s, -1) == FAIL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2640 error = TRUE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2641 for (i = 1; i < elnum - slnum; i++)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2642 {
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2643 s = reg_getline_submatch(slnum + i);
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2644 if (list_append_string(list, s, -1) == FAIL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2645 error = TRUE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2646 }
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2647 s = reg_getline_submatch(elnum);
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2648 if (list_append_string(list, s, ecol) == FAIL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2649 error = TRUE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2650 }
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2651 }
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2652 else
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2653 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2654 s = rsm.sm_match->startp[no];
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2655 if (s == NULL \|\| rsm.sm_match->endp[no] == NULL)
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2656 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2657 list = list_alloc();
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2658 if (list == NULL)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2659 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2660 if (list_append_string(list, s,
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2661 (int)(rsm.sm_match->endp[no] - s)) == FAIL)
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2662 error = TRUE;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2663 }
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2664
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2665 if (error)
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2666 {
8863 e1b84109506a commit https://github.com/vim/vim/commit/107e1eef1df3b786ad3ad49fbdb9e058649303b5 Christian Brabandt <cb@256bit.org> parents: 8825 diff changeset	2667 list_free(list);
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2668 return NULL;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2669 }
22143 3ec9e302ec94 patch 8.2.1621: crash when using submatch(0, 1) in substitute() Bram Moolenaar <Bram@vim.org> parents: 20996 diff changeset	2670 ++list->lv_refcount;
5794 a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2671 return list;
a63d0cd691dc updated for version 7.4.241 Bram Moolenaar <bram@vim.org> parents: 5735 diff changeset	2672 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2673 #endif
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2674
19405 08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2675 /*
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2676 * Initialize the values used for matching against multiple lines
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2677 */
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2678 static void
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2679 init_regexec_multi(
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2680 regmmatch_T *rmp,
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2681 win_T *win, // window in which to search or NULL
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2682 buf_T *buf, // buffer in which to search
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2683 linenr_T lnum) // nr of line to start looking for match
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2684 {
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2685 rex.reg_match = NULL;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2686 rex.reg_mmatch = rmp;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2687 rex.reg_buf = buf;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2688 rex.reg_win = win;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2689 rex.reg_firstlnum = lnum;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2690 rex.reg_maxline = rex.reg_buf->b_ml.ml_line_count - lnum;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2691 rex.reg_line_lbr = FALSE;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2692 rex.reg_ic = rmp->rmm_ic;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2693 rex.reg_icombine = FALSE;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2694 rex.reg_maxcol = rmp->rmm_maxcol;
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2695 }
08f4dc2ba716 patch 8.2.0260: several lines of code are duplicated Bram Moolenaar <Bram@vim.org> parents: 19384 diff changeset	2696
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2697 #include "regexp_bt.c"
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2698
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2699 static regengine_T bt_regengine =
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2700 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2701 bt_regcomp,
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2702 bt_regfree,
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2703 bt_regexec_nl,
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2704 bt_regexec_multi,
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2705 };
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2706
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2707 #include "regexp_nfa.c"
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2708
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2709 static regengine_T nfa_regengine =
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2710 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2711 nfa_regcomp,
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2712 nfa_regfree,
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2713 nfa_regexec_nl,
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2714 nfa_regexec_multi,
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2715 };
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2716
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2717 // Which regexp engine to use? Needed for vim_regcomp().
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2718 // Must match with 'regexpengine'.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2719 static int regexp_engine = 0;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2720
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2721 #ifdef DEBUG
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2722 static char_u regname[][30] = {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2723 "AUTOMATIC Regexp Engine",
4579 7a2be4a39423 updated for version 7.3.1037 Bram Moolenaar <bram@vim.org> parents: 4505 diff changeset	2724 "BACKTRACKING Regexp Engine",
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2725 "NFA Regexp Engine"
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2726 };
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2727 #endif
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2728
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2729 /*
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2730 * Compile a regular expression into internal code.
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2731 * Returns the program in allocated memory.
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2732 * Use vim_regfree() to free the memory.
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2733 * Returns NULL for an error.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2734 */
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2735 regprog_T *
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2736 vim_regcomp(char_u *expr_arg, int re_flags)
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2737 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2738 regprog_T *prog = NULL;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2739 char_u *expr = expr_arg;
18949 5c405689da3e patch 8.2.0035: saving and restoring called_emsg is clumsy Bram Moolenaar <Bram@vim.org> parents: 18812 diff changeset	2740 int called_emsg_before;
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2741
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2742 regexp_engine = p_re;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2743
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2744 // Check for prefix "\%#=", that sets the regexp engine
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2745 if (STRNCMP(expr, "\\%#=", 4) == 0)
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2746 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2747 int newengine = expr[4] - '0';
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2748
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2749 if (newengine == AUTOMATIC_ENGINE
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2750 \|\| newengine == BACKTRACKING_ENGINE
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2751 \|\| newengine == NFA_ENGINE)
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2752 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2753 regexp_engine = expr[4] - '0';
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2754 expr += 5;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2755 #ifdef DEBUG
15470 55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	2756 smsg("New regexp mode selected (%d): %s",
5897 b5972833add9 updated for version 7.4.291 Bram Moolenaar <bram@vim.org> parents: 5838 diff changeset	2757 regexp_engine, regname[newengine]);
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2758 #endif
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2759 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2760 else
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2761 {
26962 85866e069c24 patch 8.2.4010: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26958 diff changeset	2762 emsg(_(e_percent_hash_can_only_be_followed_by_zero_one_two_automatic_engine_will_be_used));
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2763 regexp_engine = AUTOMATIC_ENGINE;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2764 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2765 }
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2766 #ifdef DEBUG
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2767 bt_regengine.expr = expr;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2768 nfa_regengine.expr = expr;
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2769 #endif
15856 e44b7caaf373 patch 8.1.0935: old regexp engine may use invalid buffer Bram Moolenaar <Bram@vim.org> parents: 15854 diff changeset	2770 // reg_iswordc() uses rex.reg_buf
e44b7caaf373 patch 8.1.0935: old regexp engine may use invalid buffer Bram Moolenaar <Bram@vim.org> parents: 15854 diff changeset	2771 rex.reg_buf = curbuf;
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2772
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2773 /*
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2774 * First try the NFA engine, unless backtracking was requested.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2775 */
18949 5c405689da3e patch 8.2.0035: saving and restoring called_emsg is clumsy Bram Moolenaar <Bram@vim.org> parents: 18812 diff changeset	2776 called_emsg_before = called_emsg;
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2777 if (regexp_engine != BACKTRACKING_ENGINE)
13244 ac42c4b11dbc patch 8.0.1496: clearing a pointer takes two lines Christian Brabandt <cb@256bit.org> parents: 12752 diff changeset	2778 prog = nfa_regengine.regcomp(expr,
6533 bdc8e71633e4 updated for version 7.4.593 Bram Moolenaar <bram@vim.org> parents: 6390 diff changeset	2779 re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0));
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2780 else
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2781 prog = bt_regengine.regcomp(expr, re_flags);
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2782
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2783 // Check for error compiling regexp with initial engine.
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2784 if (prog == NULL)
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2785 {
4460 fe8a0a6a1c2a updated for version 7.3.978 Bram Moolenaar <bram@vim.org> parents: 4444 diff changeset	2786 #ifdef BT_REGEXP_DEBUG_LOG
23471 a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	2787 if (regexp_engine == BACKTRACKING_ENGINE) // debugging log for BT engine
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2788 {
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2789 FILE *f;
4460 fe8a0a6a1c2a updated for version 7.3.978 Bram Moolenaar <bram@vim.org> parents: 4444 diff changeset	2790 f = fopen(BT_REGEXP_DEBUG_LOG_NAME, "a");
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2791 if (f)
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2792 {
4762 47906f888725 updated for version 7.3.1128 Bram Moolenaar <bram@vim.org> parents: 4760 diff changeset	2793 fprintf(f, "Syntax error in \"%s\"\n", expr);
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2794 fclose(f);
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2795 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2796 else
15470 55ccc2d353bd patch 8.1.0743: giving error messages is not flexible Bram Moolenaar <Bram@vim.org> parents: 15339 diff changeset	2797 semsg("(NFA) Could not open \"%s\" to write !!!",
13244 ac42c4b11dbc patch 8.0.1496: clearing a pointer takes two lines Christian Brabandt <cb@256bit.org> parents: 12752 diff changeset	2798 BT_REGEXP_DEBUG_LOG_NAME);
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2799 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2800 #endif
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2801 /*
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2802 * If the NFA engine failed, try the backtracking engine.
6533 bdc8e71633e4 updated for version 7.4.593 Bram Moolenaar <bram@vim.org> parents: 6390 diff changeset	2803 * The NFA engine also fails for patterns that it can't handle well
bdc8e71633e4 updated for version 7.4.593 Bram Moolenaar <bram@vim.org> parents: 6390 diff changeset	2804 * but are still valid patterns, thus a retry should work.
15935 ff00d207cc5e patch 8.1.0973: pattern with syntax error gives threee error messages Bram Moolenaar <Bram@vim.org> parents: 15860 diff changeset	2805 * But don't try if an error message was given.
6533 bdc8e71633e4 updated for version 7.4.593 Bram Moolenaar <bram@vim.org> parents: 6390 diff changeset	2806 */
18949 5c405689da3e patch 8.2.0035: saving and restoring called_emsg is clumsy Bram Moolenaar <Bram@vim.org> parents: 18812 diff changeset	2807 if (regexp_engine == AUTOMATIC_ENGINE
5c405689da3e patch 8.2.0035: saving and restoring called_emsg is clumsy Bram Moolenaar <Bram@vim.org> parents: 18812 diff changeset	2808 && called_emsg == called_emsg_before)
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2809 {
6533 bdc8e71633e4 updated for version 7.4.593 Bram Moolenaar <bram@vim.org> parents: 6390 diff changeset	2810 regexp_engine = BACKTRACKING_ENGINE;
23471 a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	2811 #ifdef FEAT_EVAL
a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	2812 report_re_switch(expr);
a7cdfc8e4b6e patch 8.2.2278: falling back to old regexp engine can some patterns Bram Moolenaar <Bram@vim.org> parents: 22167 diff changeset	2813 #endif
4762 47906f888725 updated for version 7.3.1128 Bram Moolenaar <bram@vim.org> parents: 4760 diff changeset	2814 prog = bt_regengine.regcomp(expr, re_flags);
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2815 }
4762 47906f888725 updated for version 7.3.1128 Bram Moolenaar <bram@vim.org> parents: 4760 diff changeset	2816 }
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2817
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2818 if (prog != NULL)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2819 {
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2820 // Store the info needed to call regcomp() again when the engine turns
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2821 // out to be very slow when executing it.
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2822 prog->re_engine = regexp_engine;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2823 prog->re_flags = re_flags;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2824 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2825
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2826 return prog;
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2827 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2828
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2829 /*
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2830 * Free a compiled regexp program, returned by vim_regcomp().
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2831 */
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2832 void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2833 vim_regfree(regprog_T *prog)
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2834 {
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2835 if (prog != NULL)
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2836 prog->engine->regfree(prog);
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2837 }
66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2838
18019 68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2839 #if defined(EXITFREE) \|\| defined(PROTO)
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2840 void
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2841 free_regexp_stuff(void)
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2842 {
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2843 ga_clear(&regstack);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2844 ga_clear(&backpos);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2845 vim_free(reg_tofree);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2846 vim_free(reg_prev_sub);
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2847 }
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2848 #endif
68fd5296bf73 patch 8.1.2005: the regexp.c file is too big Bram Moolenaar <Bram@vim.org> parents: 17966 diff changeset	2849
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2850 #ifdef FEAT_EVAL
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2851 static void
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2852 report_re_switch(char_u *pat)
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2853 {
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2854 if (p_verbose > 0)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2855 {
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2856 verbose_enter();
15543 dd725a8ab112 patch 8.1.0779: argument for message functions is inconsistent Bram Moolenaar <Bram@vim.org> parents: 15480 diff changeset	2857 msg_puts(_("Switching to backtracking RE engine for pattern: "));
dd725a8ab112 patch 8.1.0779: argument for message functions is inconsistent Bram Moolenaar <Bram@vim.org> parents: 15480 diff changeset	2858 msg_puts((char *)pat);
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2859 verbose_leave();
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2860 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2861 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2862 #endif
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2863
26336 a2e6da79274d patch 8.2.3699: the +title feature adds a lot of #ifdef but little code Bram Moolenaar <Bram@vim.org> parents: 26161 diff changeset	2864 #if defined(FEAT_X11) \|\| defined(PROTO)
4805 66803af09906 updated for version 7.3.1149 Bram Moolenaar <bram@vim.org> parents: 4770 diff changeset	2865 /*
15306 7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2866 * Return whether "prog" is currently being executed.
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2867 */
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2868 int
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2869 regprog_in_use(regprog_T *prog)
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2870 {
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2871 return prog->re_in_use;
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2872 }
15555 d89c5b339c2a patch 8.1.0785: depending on the configuration some functions are unused Bram Moolenaar <Bram@vim.org> parents: 15543 diff changeset	2873 #endif
15306 7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2874
7fff2d18e191 patch 8.1.0661: clipboard regexp might be used recursively Bram Moolenaar <Bram@vim.org> parents: 15211 diff changeset	2875 /*
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2876 * Match a regexp against a string.
29048 c98fc7a4dde4 patch 8.2.5046: vim_regsub() can overwrite the destination Bram Moolenaar <Bram@vim.org> parents: 28692 diff changeset	2877 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp().
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2878 * Note: "rmp->regprog" may be freed and changed.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2879 * Uses curbuf for line count and 'iskeyword'.
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2880 * When "nl" is TRUE consider a "\n" in "line" to be a line break.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2881 *
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2882 * Return TRUE if there is a match, FALSE if not.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2883 */
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2884 static int
11529 998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2885 vim_regexec_string(
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2886 regmatch_T *rmp,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2887 char_u *line, // string to match against
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2888 colnr_T col, // column to start looking for match
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2889 int nl)
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2890 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2891 int result;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2892 regexec_T rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2893 int rex_in_use_save = rex_in_use;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2894
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2895 // Cannot use the same prog recursively, it contains state.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2896 if (rmp->regprog->re_in_use)
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2897 {
26958 d92e0d85923f patch 8.2.4008: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26952 diff changeset	2898 emsg(_(e_cannot_use_pattern_recursively));
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2899 return FALSE;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2900 }
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2901 rmp->regprog->re_in_use = TRUE;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2902
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2903 if (rex_in_use)
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2904 // Being called recursively, save the state.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2905 rex_save = rex;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2906 rex_in_use = TRUE;
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	2907
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2908 rex.reg_startp = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2909 rex.reg_endp = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2910 rex.reg_startpos = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2911 rex.reg_endpos = NULL;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2912
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2913 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl);
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	2914 rmp->regprog->re_in_use = FALSE;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2915
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	2916 // NFA engine aborted because it's very slow.
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2917 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2918 && result == NFA_TOO_EXPENSIVE)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2919 {
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2920 int save_p_re = p_re;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2921 int re_flags = rmp->regprog->re_flags;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2922 char_u pat = vim_strsave(((nfa_regprog_T )rmp->regprog)->pattern);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2923
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2924 p_re = BACKTRACKING_ENGINE;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2925 vim_regfree(rmp->regprog);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2926 if (pat != NULL)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2927 {
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2928 #ifdef FEAT_EVAL
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2929 report_re_switch(pat);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2930 #endif
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2931 rmp->regprog = vim_regcomp(pat, re_flags);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2932 if (rmp->regprog != NULL)
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	2933 {
72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	2934 rmp->regprog->re_in_use = TRUE;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2935 result = rmp->regprog->engine->regexec_nl(rmp, line, col, nl);
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	2936 rmp->regprog->re_in_use = FALSE;
72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	2937 }
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2938 vim_free(pat);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2939 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2940
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2941 p_re = save_p_re;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2942 }
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2943
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2944 rex_in_use = rex_in_use_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2945 if (rex_in_use)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2946 rex = rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	2947
6390 230b52b9d35e updated for version 7.4.526 Bram Moolenaar <bram@vim.org> parents: 6375 diff changeset	2948 return result > 0;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2949 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	2950
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2951 /*
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2952 * Note: "*prog" may be freed and changed.
6390 230b52b9d35e updated for version 7.4.526 Bram Moolenaar <bram@vim.org> parents: 6375 diff changeset	2953 * Return TRUE if there is a match, FALSE if not.
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2954 */
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2955 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2956 vim_regexec_prog(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2957 regprog_T **prog,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2958 int ignore_case,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2959 char_u *line,
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2960 colnr_T col)
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2961 {
11529 998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2962 int r;
998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2963 regmatch_T regmatch;
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2964
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2965 regmatch.regprog = *prog;
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2966 regmatch.rm_ic = ignore_case;
11529 998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2967 r = vim_regexec_string(&regmatch, line, col, FALSE);
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2968 *prog = regmatch.regprog;
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2969 return r;
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2970 }
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2971
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2972 /*
27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2973 * Note: "rmp->regprog" may be freed and changed.
6390 230b52b9d35e updated for version 7.4.526 Bram Moolenaar <bram@vim.org> parents: 6375 diff changeset	2974 * Return TRUE if there is a match, FALSE if not.
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2975 */
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2976 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2977 vim_regexec(regmatch_T rmp, char_u line, colnr_T col)
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2978 {
11529 998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2979 return vim_regexec_string(rmp, line, col, FALSE);
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2980 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2981
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2982 /*
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2983 * Like vim_regexec(), but consider a "\n" in "line" to be a line break.
6375 27a36d1013a6 updated for version 7.4.519 Bram Moolenaar <bram@vim.org> parents: 6328 diff changeset	2984 * Note: "rmp->regprog" may be freed and changed.
6390 230b52b9d35e updated for version 7.4.526 Bram Moolenaar <bram@vim.org> parents: 6375 diff changeset	2985 * Return TRUE if there is a match, FALSE if not.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2986 */
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2987 int
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	2988 vim_regexec_nl(regmatch_T rmp, char_u line, colnr_T col)
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2989 {
11529 998d2cf59caa patch 8.0.0647: syntax highlighting can make cause a freeze Christian Brabandt <cb@256bit.org> parents: 11527 diff changeset	2990 return vim_regexec_string(rmp, line, col, TRUE);
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2991 }
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2992
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2993 /*
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2994 * Match a regexp against multiple lines.
14161 7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	2995 * "rmp->regprog" must be a compiled regexp as returned by vim_regcomp().
7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	2996 * Note: "rmp->regprog" may be freed and changed, even set to NULL.
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2997 * Uses curbuf for line count and 'iskeyword'.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2998 *
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	2999 * Return zero if there is no match. Return number of lines contained in the
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	3000 * match otherwise.
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	3001 */
ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	3002 long
7833 c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	3003 vim_regexec_multi(
c079097365f3 commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f Christian Brabandt <cb@256bit.org> parents: 7807 diff changeset	3004 regmmatch_T *rmp,
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3005 win_T *win, // window in which to search or NULL
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3006 buf_T *buf, // buffer in which to search
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3007 linenr_T lnum, // nr of line to start looking for match
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3008 colnr_T col, // column to start looking for match
d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3009 int *timed_out) // flag is set when timeout limit reached
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	3010 {
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3011 int result;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3012 regexec_T rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3013 int rex_in_use_save = rex_in_use;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3014
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3015 // Cannot use the same prog recursively, it contains state.
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3016 if (rmp->regprog->re_in_use)
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3017 {
26958 d92e0d85923f patch 8.2.4008: error messages are spread out Bram Moolenaar <Bram@vim.org> parents: 26952 diff changeset	3018 emsg(_(e_cannot_use_pattern_recursively));
14354 ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3019 return FALSE;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3020 }
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3021 rmp->regprog->re_in_use = TRUE;
ffd834f893aa patch 8.1.0192: executing regexp recursively fails with a crash Christian Brabandt <cb@256bit.org> parents: 14169 diff changeset	3022
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3023 if (rex_in_use)
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3024 // Being called recursively, save the state.
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3025 rex_save = rex;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3026 rex_in_use = TRUE;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3027
11521 578df034735d patch 8.0.0643: when a pattern search is slow Vim becomes unusable Christian Brabandt <cb@256bit.org> parents: 11482 diff changeset	3028 result = rmp->regprog->engine->regexec_multi(
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	3029 rmp, win, buf, lnum, col, timed_out);
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	3030 rmp->regprog->re_in_use = FALSE;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3031
18812 d34ec6fe207d patch 8.1.2394: using old C style comments Bram Moolenaar <Bram@vim.org> parents: 18576 diff changeset	3032 // NFA engine aborted because it's very slow.
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3033 if (rmp->regprog->re_engine == AUTOMATIC_ENGINE
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3034 && result == NFA_TOO_EXPENSIVE)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3035 {
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3036 int save_p_re = p_re;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3037 int re_flags = rmp->regprog->re_flags;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3038 char_u pat = vim_strsave(((nfa_regprog_T )rmp->regprog)->pattern);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3039
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3040 p_re = BACKTRACKING_ENGINE;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3041 if (pat != NULL)
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3042 {
28323 82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3043 regprog_T *prev_prog = rmp->regprog;
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3044
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3045 #ifdef FEAT_EVAL
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3046 report_re_switch(pat);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3047 #endif
14169 42a9178374d1 patch 8.1.0102: cannot build without syntax highlighting Christian Brabandt <cb@256bit.org> parents: 14161 diff changeset	3048 #ifdef FEAT_SYN_HL
14161 7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	3049 // checking for \z misuse was already done when compiling for NFA,
7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	3050 // allow all here
7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	3051 reg_do_extmatch = REX_ALL;
14169 42a9178374d1 patch 8.1.0102: cannot build without syntax highlighting Christian Brabandt <cb@256bit.org> parents: 14161 diff changeset	3052 #endif
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3053 rmp->regprog = vim_regcomp(pat, re_flags);
14169 42a9178374d1 patch 8.1.0102: cannot build without syntax highlighting Christian Brabandt <cb@256bit.org> parents: 14161 diff changeset	3054 #ifdef FEAT_SYN_HL
14161 7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	3055 reg_do_extmatch = 0;
14169 42a9178374d1 patch 8.1.0102: cannot build without syntax highlighting Christian Brabandt <cb@256bit.org> parents: 14161 diff changeset	3056 #endif
28323 82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3057 if (rmp->regprog == NULL)
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3058 {
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3059 // Somehow compiling the pattern failed now, put back the
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3060 // previous one to avoid "regprog" becoming NULL.
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3061 rmp->regprog = prev_prog;
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3062 }
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3063 else
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3064 {
82f34ca7b3b7 patch 8.2.4687: "vimgrep /%v/ " may cause a crash Bram Moolenaar <Bram@vim.org>* parents: 27752 diff changeset	3065 vim_regfree(prev_prog);
14161 7cac4646c552 patch 8.1.0098: segfault when pattern with z() is very slow Christian Brabandt <cb@256bit.org> parents: 13286 diff changeset	3066
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	3067 rmp->regprog->re_in_use = TRUE;
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3068 result = rmp->regprog->engine->regexec_multi(
29071 b90bca860b5a patch 8.2.5057: using gettimeofday() for timeout is very inefficient Bram Moolenaar <Bram@vim.org> parents: 29048 diff changeset	3069 rmp, win, buf, lnum, col, timed_out);
14358 72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	3070 rmp->regprog->re_in_use = FALSE;
72d506d94f3f patch 8.1.0194: possibly use of NULL pointer Christian Brabandt <cb@256bit.org> parents: 14354 diff changeset	3071 }
6328 adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3072 vim_free(pat);
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3073 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3074 p_re = save_p_re;
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3075 }
adfbffe1e642 updated for version 7.4.497 Bram Moolenaar <bram@vim.org> parents: 6203 diff changeset	3076
10245 d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3077 rex_in_use = rex_in_use_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3078 if (rex_in_use)
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3079 rex = rex_save;
d76ccdacb41e commit https://github.com/vim/vim/commit/6100d02aab7c8294b581cb299250eea164b50e9d Christian Brabandt <cb@256bit.org> parents: 10187 diff changeset	3080
6390 230b52b9d35e updated for version 7.4.526 Bram Moolenaar <bram@vim.org> parents: 6375 diff changeset	3081 return result <= 0 ? 0 : result;
4444 ccecb03e5e8b updated for version 7.3.970 Bram Moolenaar <bram@vim.org> parents: 4244 diff changeset	3082 }

Mercurial > vim

annotate src/regexp.c @ 32043:6095218c9056 v9.0.1353