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Code Issues Releases Activity

Fixed -w handling for EGexecute.

Browse Source 
Obtained from:	Fedora (Tim Waugh)
This commit is contained in:
Tim J. Robbins 2005-05-14 06:13:23 +00:00
parent 4475bed3d2
commit 9473343264
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=146207
1 changed files with 83 additions and 4 deletions
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87
gnu/usr.bin/grep/search.c
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@ -332,6 +332,7 @@ EGexecute (char const *buf, size_t size, size_t *match_size, int exact)
static int use_dfa;
static int use_dfa_checked = 0;
#ifdef MBS_SUPPORT
const char *last_char = NULL;
int mb_cur_max = MB_CUR_MAX;
mbstate_t mbs;
memset (&mbs, '\0', sizeof (mbstate_t));
@ -387,6 +388,8 @@ EGexecute (char const *buf, size_t size, size_t *match_size, int exact)
while (bytes_left)
{
size_t mlen = mbrlen (beg, bytes_left, &mbs);
last_char = beg;
if (mlen == (size_t) -1 || mlen == 0)
{
/* Incomplete character: treat as single-byte. */
@ -447,6 +450,8 @@ EGexecute (char const *buf, size_t size, size_t *match_size, int exact)
while (bytes_left)
{
size_t mlen = mbrlen (beg, bytes_left, &mbs);
last_char = beg;
if (mlen == (size_t) -1 || mlen == 0)
{
/* Incomplete character: treat as single-byte. */
@ -509,10 +514,84 @@ EGexecute (char const *buf, size_t size, size_t *match_size, int exact)
if (match_words)
while (start >= 0)
{
if ((start == 0 || !WCHAR ((unsigned char) beg[start - 1]))
&& (len == end - beg - 1
|| !WCHAR ((unsigned char) beg[start + len])))
goto success_in_beg_and_end;
int lword_match = 0;
if (start == 0)
lword_match = 1;
else
{
assert (start > 0);
#ifdef MBS_SUPPORT
if (mb_cur_max > 1)
{
const char *s;
int mr;
wchar_t pwc;
if (using_utf8)
{
s = beg + start - 1;
while (s > buf
&& (unsigned char) *s >= 0x80
&& (unsigned char) *s <= 0xbf)
--s;
}
else
s = last_char;
mr = mbtowc (&pwc, s, beg + start - s);
if (mr <= 0)
{
memset (&mbs, '\0', sizeof (mbstate_t));
lword_match = 1;
}
else if (!(iswalnum (pwc) || pwc == L'_')
&& mr == (int) (beg + start - s))
lword_match = 1;
}
else
#endif /* MBS_SUPPORT */
if (!WCHAR ((unsigned char) beg[start - 1]))
lword_match = 1;
}
if (lword_match)
{
int rword_match = 0;
if (start + len == end - beg - 1)
rword_match = 1;
else
{
#ifdef MBS_SUPPORT
if (mb_cur_max > 1)
{
wchar_t nwc;
int mr;
mr = mbtowc (&nwc, beg + start + len,
end - beg - start - len - 1);
if (mr <= 0)
{
memset (&mbs, '\0', sizeof (mbstate_t));
rword_match = 1;
}
else if (!iswalnum (nwc) && nwc != L'_')
rword_match = 1;
}
else
#endif /* MBS_SUPPORT */
if (!WCHAR ((unsigned char) beg[start + len]))
rword_match = 1;
}
if (rword_match)
{
if (!exact)
/* Returns the whole line. */
goto success_in_beg_and_end;
else
/* Returns just this word match. */
goto success_in_start_and_len;
}
}
if (len > 0)
{
/* Try a shorter length anchored at the same place. */