Remove mb-caching hack.
Obtained from: Fedora (Tim Waugh)
This commit is contained in:
Tim J. Robbins
parent
edaccfc8bb
commit
52e523ead7
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=146199
@ -2747,8 +2747,7 @@ transit_state (struct dfa *d, int s, unsigned char const **pp)
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match needs to be verified by a backtracking matcher. Otherwise
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we store a 0 in *backref. */
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size_t
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dfaexec (struct dfa *d, char const *begin, size_t size, int *backref,
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struct mb_cache *mb_cache)
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dfaexec (struct dfa *d, char const *begin, size_t size, int *backref)
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{
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register int s; /* Current state. */
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register unsigned char const *p; /* Current input character. */
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@ -2780,79 +2779,43 @@ dfaexec (struct dfa *d, char const *begin, size_t size, int *backref,
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#ifdef MBS_SUPPORT
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if (MB_CUR_MAX > 1)
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{
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int remain_bytes, i;
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buf_begin = begin;
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buf_end = end;
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if (mb_cache && mb_cache->mblen_buf && mb_cache->wcs_buf &&
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begin > mb_cache->orig_buf &&
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(begin + size) <= (mb_cache->orig_buf + mb_cache->len))
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{
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/* The cache can help us. */
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MALLOC(mblen_buf, unsigned char, size + 2);
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MALLOC(inputwcs, wchar_t, size + 2);
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memcpy (mblen_buf,
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mb_cache->mblen_buf + (begin - mb_cache->orig_buf),
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(size + 2) * sizeof (unsigned char));
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memcpy (inputwcs,
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mb_cache->wcs_buf + (begin - mb_cache->orig_buf),
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(size + 2) * sizeof (wchar_t));
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mblen_buf[size + 1] = 0;
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inputwcs[size + 1] = 0;
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}
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else
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{
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int remain_bytes, i;
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/* initialize mblen_buf, and inputwcs. */
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MALLOC(mblen_buf, unsigned char, end - (unsigned char const *)begin + 2);
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MALLOC(inputwcs, wchar_t, end - (unsigned char const *)begin + 2);
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memset(&mbs, 0, sizeof(mbstate_t));
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remain_bytes = 0;
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for (i = 0; i < end - (unsigned char const *)begin + 1; i++)
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/* initialize mblen_buf, and inputwcs. */
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MALLOC(mblen_buf, unsigned char, end - (unsigned char const *)begin + 2);
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MALLOC(inputwcs, wchar_t, end - (unsigned char const *)begin + 2);
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memset(&mbs, 0, sizeof(mbstate_t));
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remain_bytes = 0;
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for (i = 0; i < end - (unsigned char const *)begin + 1; i++)
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{
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if (remain_bytes == 0)
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{
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if (remain_bytes == 0)
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remain_bytes
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= mbrtowc(inputwcs + i, begin + i,
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end - (unsigned char const *)begin - i + 1, &mbs);
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if (remain_bytes <= 1)
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{
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remain_bytes
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= mbrtowc(inputwcs + i, begin + i,
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end - (unsigned char const *)begin - i + 1, &mbs);
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if (remain_bytes <= 1)
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{
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remain_bytes = 0;
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inputwcs[i] = (wchar_t)begin[i];
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mblen_buf[i] = 0;
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}
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else
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{
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mblen_buf[i] = remain_bytes;
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remain_bytes--;
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}
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remain_bytes = 0;
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inputwcs[i] = (wchar_t)begin[i];
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mblen_buf[i] = 0;
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}
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else
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{
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mblen_buf[i] = remain_bytes;
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inputwcs[i] = 0;
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remain_bytes--;
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}
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}
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mblen_buf[i] = 0;
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inputwcs[i] = 0; /* sentinel */
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if (mb_cache)
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else
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{
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/* Populate the cache. */
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mb_cache->len = size;
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mb_cache->orig_buf = begin;
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if (mb_cache->mblen_buf)
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free (mb_cache->mblen_buf);
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if (mb_cache->wcs_buf)
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free (mb_cache->wcs_buf);
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MALLOC(mb_cache->mblen_buf, unsigned char, size + 2);
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MALLOC(mb_cache->wcs_buf, wchar_t, size + 2);
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memcpy (mb_cache->mblen_buf, mblen_buf,
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(size + 2) * sizeof (unsigned char));
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memcpy (mb_cache->wcs_buf, inputwcs,
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(size + 2) * sizeof (wchar_t));
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mblen_buf[i] = remain_bytes;
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inputwcs[i] = 0;
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remain_bytes--;
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}
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}
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mblen_buf[i] = 0;
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inputwcs[i] = 0; /* sentinel */
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}
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#endif /* MBS_SUPPORT */
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@ -24,8 +24,6 @@
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In addition to clobbering modularity, we eat up valuable
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name space. */
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#include "mbcache.h"
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#ifdef __STDC__
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# ifndef _PTR_T
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# define _PTR_T
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@ -407,8 +405,7 @@ extern void dfacomp PARAMS ((char const *, size_t, struct dfa *, int));
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order to verify backreferencing; otherwise the flag will be cleared.
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Returns (size_t) -1 if no match is found, or the offset of the first
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character after the first & shortest matching string in the buffer. */
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extern size_t dfaexec PARAMS ((struct dfa *, char const *, size_t, int *,
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struct mb_cache *));
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extern size_t dfaexec PARAMS ((struct dfa *, char const *, size_t, int *));
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/* Free the storage held by the components of a struct dfa. */
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extern void dfafree PARAMS ((struct dfa *));
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@ -198,8 +198,7 @@ static inline int undossify_input PARAMS ((register char *, size_t));
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/* Functions we'll use to search. */
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static void (*compile) PARAMS ((char const *, size_t));
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static size_t (*execute) PARAMS ((char const *, size_t, struct mb_cache *,
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size_t *, int));
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static size_t (*execute) PARAMS ((char const *, size_t, size_t *, int));
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/* Like error, but suppress the diagnostic if requested. */
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static void
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@ -584,7 +583,7 @@ print_offset_sep (uintmax_t pos, char sep)
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}
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static void
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prline (char const *beg, char const *lim, int sep, struct mb_cache *mb_cache)
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prline (char const *beg, char const *lim, int sep)
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{
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if (out_file)
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printf ("%s%c", filename, sep & filename_mask);
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@ -607,8 +606,7 @@ prline (char const *beg, char const *lim, int sep, struct mb_cache *mb_cache)
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{
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size_t match_size;
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size_t match_offset;
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while ((match_offset = (*execute) (beg, lim - beg, mb_cache,
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&match_size, 1))
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while ((match_offset = (*execute) (beg, lim - beg, &match_size, 1))
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!= (size_t) -1)
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{
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char const *b = beg + match_offset;
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@ -642,8 +640,7 @@ prline (char const *beg, char const *lim, int sep, struct mb_cache *mb_cache)
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int i;
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for (i = 0; i < lim - beg; i++)
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ibeg[i] = tolower (beg[i]);
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while ((match_offset = (*execute) (ibeg, ilim-ibeg, mb_cache,
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&match_size, 1))
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while ((match_offset = (*execute) (ibeg, ilim-ibeg, &match_size, 1))
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!= (size_t) -1)
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{
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char const *b = beg + match_offset;
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@ -661,8 +658,7 @@ prline (char const *beg, char const *lim, int sep, struct mb_cache *mb_cache)
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lastout = lim;
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return;
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}
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while (lim-beg && (match_offset = (*execute) (beg, lim - beg, mb_cache,
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&match_size, 1))
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while (lim-beg && (match_offset = (*execute) (beg, lim - beg, &match_size, 1))
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!= (size_t) -1)
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{
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char const *b = beg + match_offset;
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@ -690,7 +686,7 @@ prline (char const *beg, char const *lim, int sep, struct mb_cache *mb_cache)
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/* Print pending lines of trailing context prior to LIM. Trailing context ends
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at the next matching line when OUTLEFT is 0. */
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static void
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prpending (char const *lim, struct mb_cache *mb_cache)
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prpending (char const *lim)
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{
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if (!lastout)
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lastout = bufbeg;
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@ -700,10 +696,9 @@ prpending (char const *lim, struct mb_cache *mb_cache)
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size_t match_size;
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--pending;
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if (outleft
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|| (((*execute) (lastout, nl - lastout, mb_cache,
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&match_size, 0) == (size_t) -1)
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|| (((*execute) (lastout, nl - lastout, &match_size, 0) == (size_t) -1)
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== !out_invert))
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prline (lastout, nl + 1, '-', mb_cache);
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prline (lastout, nl + 1, '-');
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else
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pending = 0;
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}
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@ -712,8 +707,7 @@ prpending (char const *lim, struct mb_cache *mb_cache)
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/* Print the lines between BEG and LIM. Deal with context crap.
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If NLINESP is non-null, store a count of lines between BEG and LIM. */
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static void
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prtext (char const *beg, char const *lim, int *nlinesp,
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struct mb_cache *mb_cache)
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prtext (char const *beg, char const *lim, int *nlinesp)
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{
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static int used; /* avoid printing "--" before any output */
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char const *bp, *p;
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@ -721,7 +715,7 @@ prtext (char const *beg, char const *lim, int *nlinesp,
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int i, n;
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if (!out_quiet && pending > 0)
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prpending (beg, mb_cache);
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prpending (beg);
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p = beg;
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@ -745,7 +739,7 @@ prtext (char const *beg, char const *lim, int *nlinesp,
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{
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char const *nl = memchr (p, eol, beg - p);
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nl++;
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prline (p, nl, '-', mb_cache);
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prline (p, nl, '-');
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p = nl;
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}
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}
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@ -758,7 +752,7 @@ prtext (char const *beg, char const *lim, int *nlinesp,
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char const *nl = memchr (p, eol, lim - p);
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nl++;
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if (!out_quiet)
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prline (p, nl, ':', mb_cache);
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prline (p, nl, ':');
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p = nl;
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}
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*nlinesp = n;
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@ -768,7 +762,7 @@ prtext (char const *beg, char const *lim, int *nlinesp,
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}
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else
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if (!out_quiet)
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prline (beg, lim, ':', mb_cache);
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prline (beg, lim, ':');
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pending = out_quiet ? 0 : out_after;
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used = 1;
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@ -778,7 +772,7 @@ prtext (char const *beg, char const *lim, int *nlinesp,
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between matching lines if OUT_INVERT is true). Return a count of
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lines printed. */
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static int
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grepbuf (char const *beg, char const *lim, struct mb_cache *mb_cache)
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grepbuf (char const *beg, char const *lim)
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{
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int nlines, n;
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register char const *p;
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@ -787,8 +781,7 @@ grepbuf (char const *beg, char const *lim, struct mb_cache *mb_cache)
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nlines = 0;
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p = beg;
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while ((match_offset = (*execute) (p, lim - p, mb_cache,
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&match_size, 0)) != (size_t) -1)
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while ((match_offset = (*execute) (p, lim - p, &match_size, 0)) != (size_t) -1)
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{
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char const *b = p + match_offset;
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char const *endp = b + match_size;
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@ -797,7 +790,7 @@ grepbuf (char const *beg, char const *lim, struct mb_cache *mb_cache)
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break;
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if (!out_invert)
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{
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prtext (b, endp, (int *) 0, mb_cache);
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prtext (b, endp, (int *) 0);
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nlines++;
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outleft--;
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if (!outleft || done_on_match)
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@ -810,7 +803,7 @@ grepbuf (char const *beg, char const *lim, struct mb_cache *mb_cache)
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}
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else if (p < b)
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{
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prtext (p, b, &n, mb_cache);
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prtext (p, b, &n);
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nlines += n;
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outleft -= n;
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if (!outleft)
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@ -820,7 +813,7 @@ grepbuf (char const *beg, char const *lim, struct mb_cache *mb_cache)
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}
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if (out_invert && p < lim)
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{
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prtext (p, lim, &n, mb_cache);
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prtext (p, lim, &n);
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nlines += n;
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outleft -= n;
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}
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@ -840,9 +833,7 @@ grep (int fd, char const *file, struct stats *stats)
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char *beg;
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char *lim;
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char eol = eolbyte;
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struct mb_cache mb_cache;
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memset (&mb_cache, 0, sizeof (mb_cache));
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if (!reset (fd, file, stats))
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return 0;
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@ -917,9 +908,9 @@ grep (int fd, char const *file, struct stats *stats)
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if (beg < lim)
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{
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if (outleft)
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nlines += grepbuf (beg, lim, &mb_cache);
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nlines += grepbuf (beg, lim);
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if (pending)
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prpending (lim, &mb_cache);
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prpending (lim);
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if((!outleft && !pending) || (nlines && done_on_match && !out_invert))
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goto finish_grep;
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}
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@ -947,11 +938,6 @@ grep (int fd, char const *file, struct stats *stats)
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totalcc = add_count (totalcc, buflim - bufbeg - save);
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if (out_line)
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nlscan (beg);
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if (mb_cache.wcs_buf)
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free (mb_cache.wcs_buf);
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if (mb_cache.mblen_buf)
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free (mb_cache.mblen_buf);
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memset (&mb_cache, 0, sizeof (mb_cache));
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if (! fillbuf (save, stats))
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{
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if (! is_EISDIR (errno, file))
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@ -963,9 +949,9 @@ grep (int fd, char const *file, struct stats *stats)
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{
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*buflim++ = eol;
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if (outleft)
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nlines += grepbuf (bufbeg + save - residue, buflim, &mb_cache);
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nlines += grepbuf (bufbeg + save - residue, buflim);
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if (pending)
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prpending (buflim, &mb_cache);
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prpending (buflim);
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}
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finish_grep:
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@ -973,11 +959,6 @@ grep (int fd, char const *file, struct stats *stats)
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out_quiet -= not_text;
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if ((not_text & ~out_quiet) && nlines != 0)
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printf (_("Binary file %s matches\n"), filename);
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if (mb_cache.wcs_buf)
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free (mb_cache.wcs_buf);
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if (mb_cache.mblen_buf)
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free (mb_cache.mblen_buf);
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return nlines;
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}
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@ -22,8 +22,6 @@
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# define __attribute__(x)
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#endif
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#include "mbcache.h"
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/* Grep.c expects the matchers vector to be terminated
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by an entry with a NULL compile, and to contain at least
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an entry named "default". */
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@ -32,8 +30,7 @@ extern struct matcher
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{
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char name[8];
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void (*compile) PARAMS ((char const *, size_t));
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size_t (*execute) PARAMS ((char const *, size_t, struct mb_cache *,
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size_t *, int));
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size_t (*execute) PARAMS ((char const *, size_t, size_t *, int));
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} const matchers[];
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/* Exported from fgrepmat.c, egrepmat.c, grepmat.c. */
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@ -1,11 +0,0 @@
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/* $FreeBSD$ */
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#ifndef MB_CACHE_DEFINED
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#define MB_CACHE_DEFINED
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struct mb_cache
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{
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size_t len;
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const char *orig_buf; /* not the only reference; do not free */
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wchar_t *wcs_buf;
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unsigned char *mblen_buf;
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};
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#endif
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@ -73,22 +73,17 @@ static kwset_t kwset;
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static int kwset_exact_matches;
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#if defined(MBS_SUPPORT)
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static char* check_multibyte_string PARAMS ((char const *buf, size_t size,
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struct mb_cache *,
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char const *orig_buf));
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static char* check_multibyte_string PARAMS ((char const *buf, size_t size));
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#endif
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static void kwsinit PARAMS ((void));
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static void kwsmusts PARAMS ((void));
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static void Gcompile PARAMS ((char const *, size_t));
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static void Ecompile PARAMS ((char const *, size_t));
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static size_t EGexecute PARAMS ((char const *, size_t, struct mb_cache *,
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size_t *, int ));
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static size_t EGexecute PARAMS ((char const *, size_t, size_t *, int ));
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static void Fcompile PARAMS ((char const *, size_t));
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static size_t Fexecute PARAMS ((char const *, size_t, struct mb_cache *,
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size_t *, int));
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static size_t Fexecute PARAMS ((char const *, size_t, size_t *, int));
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static void Pcompile PARAMS ((char const *, size_t ));
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static size_t Pexecute PARAMS ((char const *, size_t, struct mb_cache *,
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size_t *, int));
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static size_t Pexecute PARAMS ((char const *, size_t, size_t *, int));
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void
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dfaerror (char const *mesg)
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@ -154,66 +149,35 @@ kwsmusts (void)
|
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are not singlebyte character nor the first byte of a multibyte
|
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character. Caller must free the array. */
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static char*
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check_multibyte_string(char const *buf, size_t size, struct mb_cache *mb_cache,
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char const *orig_buf)
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check_multibyte_string(char const *buf, size_t size)
|
||||
{
|
||||
char *mb_properties = xmalloc(size);
|
||||
mbstate_t cur_state;
|
||||
wchar_t wc;
|
||||
int i;
|
||||
memset(&cur_state, 0, sizeof(mbstate_t));
|
||||
|
||||
if (mb_cache && mb_cache->mblen_buf &&
|
||||
orig_buf > mb_cache->orig_buf &&
|
||||
(orig_buf + size) <= (mb_cache->orig_buf + mb_cache->len))
|
||||
memset(mb_properties, 0, sizeof(char)*size);
|
||||
for (i = 0; i < size ;)
|
||||
{
|
||||
/* The cache can help us. */
|
||||
memcpy (mb_properties,
|
||||
mb_cache->mblen_buf + (orig_buf - mb_cache->orig_buf),
|
||||
size);
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
memset(mb_properties, 0, sizeof(char)*size);
|
||||
for (i = 0; i < size ;)
|
||||
{
|
||||
size_t mbclen;
|
||||
mbclen = mbrtowc(&wc, buf + i, size - i, &cur_state);
|
||||
size_t mbclen;
|
||||
mbclen = mbrtowc(&wc, buf + i, size - i, &cur_state);
|
||||
|
||||
if (mbclen == (size_t) -1 || mbclen == (size_t) -2 || mbclen == 0)
|
||||
{
|
||||
/* An invalid sequence, or a truncated multibyte character.
|
||||
We treat it as a singlebyte character. */
|
||||
mbclen = 1;
|
||||
}
|
||||
else if (match_icase)
|
||||
{
|
||||
if (iswupper((wint_t)wc))
|
||||
{
|
||||
wc = towlower((wint_t)wc);
|
||||
wcrtomb(buf + i, wc, &cur_state);
|
||||
}
|
||||
}
|
||||
mb_properties[i] = mbclen;
|
||||
i += mbclen;
|
||||
}
|
||||
|
||||
/* Now populate the cache. */
|
||||
if (mb_cache)
|
||||
if (mbclen == (size_t) -1 || mbclen == (size_t) -2 || mbclen == 0)
|
||||
{
|
||||
if (mb_cache->wcs_buf)
|
||||
{
|
||||
free (mb_cache->wcs_buf);
|
||||
mb_cache->wcs_buf = NULL;
|
||||
}
|
||||
if (mb_cache->mblen_buf)
|
||||
free (mb_cache->mblen_buf);
|
||||
mb_cache->len = size;
|
||||
mb_cache->orig_buf = orig_buf;
|
||||
mb_cache->mblen_buf = xmalloc (size);
|
||||
memcpy (mb_cache->mblen_buf, mb_properties, size);
|
||||
/* An invalid sequence, or a truncated multibyte character.
|
||||
We treat it as a singlebyte character. */
|
||||
mbclen = 1;
|
||||
}
|
||||
else if (match_icase)
|
||||
{
|
||||
if (iswupper((wint_t)wc))
|
||||
{
|
||||
wc = towlower((wint_t)wc);
|
||||
wcrtomb(buf + i, wc, &cur_state);
|
||||
}
|
||||
}
|
||||
mb_properties[i] = mbclen;
|
||||
i += mbclen;
|
||||
}
|
||||
|
||||
return mb_properties;
|
||||
@ -380,11 +344,9 @@ Ecompile (char const *pattern, size_t size)
|
||||
}
|
||||
|
||||
static size_t
|
||||
EGexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
size_t *match_size, int exact)
|
||||
EGexecute (char const *buf, size_t size, size_t *match_size, int exact)
|
||||
{
|
||||
register char const *buflim, *beg, *end;
|
||||
char const *orig_buf = buf;
|
||||
char eol = eolbyte;
|
||||
int backref, start, len;
|
||||
struct kwsmatch kwsm;
|
||||
@ -400,7 +362,7 @@ EGexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
buf = case_buf;
|
||||
}
|
||||
if (kwset)
|
||||
mb_properties = check_multibyte_string(buf, size, mb_cache, orig_buf);
|
||||
mb_properties = check_multibyte_string(buf, size);
|
||||
}
|
||||
#endif /* MBS_SUPPORT */
|
||||
|
||||
@ -429,13 +391,13 @@ EGexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
--beg;
|
||||
if (kwsm.index < kwset_exact_matches)
|
||||
goto success_in_beg_and_end;
|
||||
if (dfaexec (&dfa, beg, end - beg, &backref, mb_cache) == (size_t) -1)
|
||||
if (dfaexec (&dfa, beg, end - beg, &backref) == (size_t) -1)
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* No good fixed strings; start with DFA. */
|
||||
size_t offset = dfaexec (&dfa, beg, buflim - beg, &backref, mb_cache);
|
||||
size_t offset = dfaexec (&dfa, beg, buflim - beg, &backref);
|
||||
if (offset == (size_t) -1)
|
||||
break;
|
||||
/* Narrow down to the line we've found. */
|
||||
@ -563,11 +525,9 @@ Fcompile (char const *pattern, size_t size)
|
||||
}
|
||||
|
||||
static size_t
|
||||
Fexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
size_t *match_size, int exact)
|
||||
Fexecute (char const *buf, size_t size, size_t *match_size, int exact)
|
||||
{
|
||||
register char const *beg, *try, *end;
|
||||
char const *orig_buf = buf;
|
||||
register size_t len;
|
||||
char eol = eolbyte;
|
||||
struct kwsmatch kwsmatch;
|
||||
@ -582,7 +542,7 @@ Fexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
memcpy(case_buf, buf, size);
|
||||
buf = case_buf;
|
||||
}
|
||||
mb_properties = check_multibyte_string(buf, size, mb_cache, orig_buf);
|
||||
mb_properties = check_multibyte_string(buf, size);
|
||||
}
|
||||
#endif /* MBS_SUPPORT */
|
||||
|
||||
@ -747,8 +707,7 @@ Pcompile (char const *pattern, size_t size)
|
||||
}
|
||||
|
||||
static size_t
|
||||
Pexecute (char const *buf, size_t size, struct mb_cache *mb_cache,
|
||||
size_t *match_size, int exact)
|
||||
Pexecute (char const *buf, size_t size, size_t *match_size, int exact)
|
||||
{
|
||||
#if !HAVE_LIBPCRE
|
||||
abort ();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user