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Made add_match_data() look for invalid multibyte chars in the

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names and substitute $'\123' sequences for them.
This commit is contained in:
Wayne Davison 2006-02-13 11:03:59 +00:00
parent f8e97151de
commit a6658fb9f6
1 changed files with 61 additions and 4 deletions
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65
Src/Zle/compcore.c
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@ -2227,10 +2227,15 @@ add_match_data(int alt, char *str, char *orig, Cline line,
char *psuf, Cline sline,
char *suf, int flags, int exact)
{
#ifdef MULTIBYTE_SUPPORT
mbstate_t mbs;
char *t, *f, *new_str = NULL;
int fl, eol = 0;
#endif
Cmatch cm;
Aminfo ai = (alt ? fainfo : ainfo);
int palen, salen, qipl, ipl, pl, ppl, qisl, isl, psl;
int sl, lpl, lsl, ml;
int stl, lpl, lsl, ml;
palen = salen = qipl = ipl = pl = ppl = qisl = isl = psl = 0;
@ -2445,6 +2450,59 @@ add_match_data(int alt, char *str, char *orig, Cline line,
line = p;
}
}
stl = strlen(str);
#ifdef MULTIBYTE_SUPPORT
/* If "str" contains a character that won't convert into a wide
* character, change it into a $'\123' sequence. */
memset(&mbs, '\0', sizeof mbs);
for (t = f = str, fl = stl; fl > 0; ) {
wchar_t wc;
size_t cnt = eol ? MB_INVALID : mbrtowc(&wc, f, fl, &mbs);
switch (cnt) {
case MB_INCOMPLETE:
eol = 1;
/* FALL THROUGH */
case MB_INVALID:
/* Get mbs out of its undefined state. */
memset(&mbs, '\0', sizeof mbs);
if (!new_str) {
/* Be very pessimistic about how much space we'll need. */
new_str = zhalloc(stl*7 + 1);
memcpy(new_str, str, t - str);
t = new_str + (t - str);
}
*t++ = '$';
*t++ = '\'';
*t++ = '\\';
*t++ = '0' + ((STOUC(*f) >> 6) & 7);
*t++ = '0' + ((STOUC(*f) >> 3) & 7);
*t++ = '0' + (STOUC(*f) & 7);
*t++ = '\'';
f++;
fl--;
break;
case 0:
/* Converting '\0' returns 0, but a '\0' is a real
* character for us, so we should consume 1 byte
* (certainly true for Unicode and unlikely to be false
* in any non-pathological multibyte representation). */
cnt = 1;
/* FALL THROUGH */
default:
fl -= cnt;
while (cnt--)
*t++ = *f++;
break;
}
}
if (new_str) {
*t = '\0';
str = new_str;
stl = strlen(str);
}
#endif
/* Allocate and fill the match structure. */
cm = (Cmatch) zhalloc(sizeof(struct cmatch));
cm->str = str;
@ -2539,10 +2597,9 @@ add_match_data(int alt, char *str, char *orig, Cline line,
if (!ai->firstm)
ai->firstm = cm;
sl = strlen(str);
lpl = (cm->ppre ? strlen(cm->ppre) : 0);
lsl = (cm->psuf ? strlen(cm->psuf) : 0);
ml = sl + lpl + lsl;
ml = stl + lpl + lsl;
if (ml < minmlen)
minmlen = ml;
@ -2566,7 +2623,7 @@ add_match_data(int alt, char *str, char *orig, Cline line,
e += lpl;
}
strcpy(e, str);
e += sl;
e += stl;
if (cm->psuf)
strcpy(e, cm->psuf);
comp_setunset(0, 0, CP_EXACTSTR, 0);