static int
cond_pcre_match(char **a, int id)
{
pcre *pcre_pat;
const char *pcre_err;
char *lhstr, *rhre;
int r = 0, pcre_opts = 0, pcre_errptr, capcnt, *ov, ovsize;
lhstr = cond_str(a,0,0);
rhre = cond_str(a,1,0);
switch(id) {
case CPCRE_PLAIN:
pcre_pat = pcre_compile(rhre, pcre_opts, &pcre_err, &pcre_errptr, NULL);
pcre_fullinfo(pcre_pat, NULL, PCRE_INFO_CAPTURECOUNT, &capcnt);
ovsize = (capcnt+1)*3;
ov = zalloc(ovsize*sizeof(int));
r = pcre_exec(pcre_pat, NULL, lhstr, strlen(lhstr), 0, 0, ov, ovsize);
if (r==0) return 1;
else if (r==PCRE_ERROR_NOMATCH) return 0; /* no match */
else if (r>0) {
zpcre_get_substrings(lhstr, ov, r, NULL);
return 1;
}
break;
}
return 0;
}
static int
cond_psfix(char **a, int id)
{
if (comp_check()) {
if (a[1])
return do_comp_vars(id, cond_val(a, 0), cond_str(a, 1, 1),
0, NULL, 0);
else
return do_comp_vars(id, -1, cond_str(a, 0, 1), 0, NULL, 0);
}
return 0;
}
static int
cond_pcre_match(char **a, int id)
{
pcre *pcre_pat;
const char *pcre_err;
char *lhstr, *rhre, *lhstr_plain, *rhre_plain, *avar=NULL;
int r = 0, pcre_opts = 0, pcre_errptr, capcnt, *ov, ovsize;
int return_value = 0;
if (zpcre_utf8_enabled())
pcre_opts |= PCRE_UTF8;
lhstr = cond_str(a,0,0);
rhre = cond_str(a,1,0);
lhstr_plain = ztrdup(lhstr);
rhre_plain = ztrdup(rhre);
unmetafy(lhstr_plain, NULL);
unmetafy(rhre_plain, NULL);
pcre_pat = NULL;
ov = NULL;
ovsize = 0;
if (isset(BASHREMATCH))
avar="BASH_REMATCH";
switch(id) {
case CPCRE_PLAIN:
pcre_pat = pcre_compile(rhre_plain, pcre_opts, &pcre_err, &pcre_errptr, NULL);
if (pcre_pat == NULL) {
zwarn("failed to compile regexp /%s/: %s", rhre, pcre_err);
break;
}
pcre_fullinfo(pcre_pat, NULL, PCRE_INFO_CAPTURECOUNT, &capcnt);
ovsize = (capcnt+1)*3;
ov = zalloc(ovsize*sizeof(int));
r = pcre_exec(pcre_pat, NULL, lhstr_plain, strlen(lhstr_plain), 0, 0, ov, ovsize);
/* r < 0 => error; r==0 match but not enough size in ov
* r > 0 => (r-1) substrings found; r==1 => no substrings
*/
if (r==0) {
zwarn("reportable zsh problem: pcre_exec() returned 0");
return_value = 1;
break;
}
else if (r==PCRE_ERROR_NOMATCH) {
return_value = 0; /* no match */
break;
}
else if (r<0) {
zwarn("pcre_exec() error [%d]", r);
break;
}
else if (r>0) {
zpcre_get_substrings(lhstr_plain, ov, r, NULL, avar, 0,
isset(BASHREMATCH),
!isset(BASHREMATCH));
return_value = 1;
break;
}
break;
}
if (lhstr_plain)
free(lhstr_plain);
if(rhre_plain)
free(rhre_plain);
if (pcre_pat)
pcre_free(pcre_pat);
if (ov)
zfree(ov, ovsize*sizeof(int));
return return_value;
}
static int
cond_range(char **a, int id)
{
return do_comp_vars(CVT_RANGEPAT, 0, cond_str(a, 0, 1), 0,
(id ? cond_str(a, 1, 1) : NULL), 0);
}
static int
zcond_regex_match(char **a, int id)
{
regex_t re;
regmatch_t *m, *matches = NULL;
size_t matchessz = 0;
char *lhstr, *lhstr_zshmeta, *rhre, *rhre_zshmeta, *s, **arr, **x;
int r, n, return_value, rcflags, reflags, nelem, start;
lhstr_zshmeta = cond_str(a,0,0);
rhre_zshmeta = cond_str(a,1,0);
rcflags = reflags = 0;
return_value = 0; /* 1 => matched successfully */
lhstr = ztrdup(lhstr_zshmeta);
unmetafy(lhstr, NULL);
rhre = ztrdup(rhre_zshmeta);
unmetafy(rhre, NULL);
switch(id) {
case ZREGEX_EXTENDED:
rcflags |= REG_EXTENDED;
if (!isset(CASEMATCH))
rcflags |= REG_ICASE;
r = regcomp(&re, rhre, rcflags);
if (r) {
zregex_regerrwarn(r, &re, "failed to compile regex");
break;
}
/* re.re_nsub is number of parenthesized groups, we also need
* 1 for the 0 offset, which is the entire matched portion
*/
if ((int)re.re_nsub < 0) {
zwarn("INTERNAL ERROR: regcomp() returned "
"negative subpattern count %d", (int)re.re_nsub);
break;
}
matchessz = (re.re_nsub + 1) * sizeof(regmatch_t);
matches = zalloc(matchessz);
r = regexec(&re, lhstr, re.re_nsub+1, matches, reflags);
if (r == REG_NOMATCH)
; /* We do nothing when we fail to match. */
else if (r == 0) {
return_value = 1;
if (isset(BASHREMATCH)) {
start = 0;
nelem = re.re_nsub + 1;
} else {
start = 1;
nelem = re.re_nsub;
}
arr = NULL; /* bogus gcc warning of used uninitialised */
/* entire matched portion + re_nsub substrings + NULL */
if (nelem) {
arr = x = (char **) zalloc(sizeof(char *) * (nelem + 1));
for (m = matches + start, n = start; n <= (int)re.re_nsub; ++n, ++m, ++x) {
*x = metafy(lhstr + m->rm_so, m->rm_eo - m->rm_so, META_DUP);
}
*x = NULL;
}
if (isset(BASHREMATCH)) {
setaparam("BASH_REMATCH", arr);
} else {
zlong offs;
char *ptr;
int clen, leftlen;
m = matches;
s = metafy(lhstr + m->rm_so, m->rm_eo - m->rm_so, META_DUP);
setsparam("MATCH", s);
/*
* Count the characters before the match.
*/
ptr = lhstr;
leftlen = m->rm_so;
offs = 0;
MB_CHARINIT();
while (leftlen) {
offs++;
clen = MB_CHARLEN(ptr, leftlen);
ptr += clen;
leftlen -= clen;
}
setiparam("MBEGIN", offs + !isset(KSHARRAYS));
/*
* Add on the characters in the match.
*/
leftlen = m->rm_eo - m->rm_so;
while (leftlen) {
offs++;
clen = MB_CHARLEN(ptr, leftlen);
ptr += clen;
leftlen -= clen;
}
setiparam("MEND", offs + !isset(KSHARRAYS) - 1);
if (nelem) {
char **mbegin, **mend, **bptr, **eptr;
bptr = mbegin = (char **)zalloc(sizeof(char *)*(nelem+1));
eptr = mend = (char **)zalloc(sizeof(char *)*(nelem+1));
for (m = matches + start, n = 0;
n < nelem;
++n, ++m, ++bptr, ++eptr)
{
char buf[DIGBUFSIZE];
if (m->rm_so < 0 || m->rm_eo < 0) {
*bptr = ztrdup("-1");
*eptr = ztrdup("-1");
continue;
}
ptr = lhstr;
leftlen = m->rm_so;
offs = 0;
/* Find the start offset */
MB_CHARINIT();
while (leftlen) {
offs++;
clen = MB_CHARLEN(ptr, leftlen);
ptr += clen;
leftlen -= clen;
}
convbase(buf, offs + !isset(KSHARRAYS), 10);
*bptr = ztrdup(buf);
/* Continue to the end offset */
leftlen = m->rm_eo - m->rm_so;
while (leftlen ) {
offs++;
clen = MB_CHARLEN(ptr, leftlen);
ptr += clen;
leftlen -= clen;
}
convbase(buf, offs + !isset(KSHARRAYS) - 1, 10);
*eptr = ztrdup(buf);
}
*bptr = *eptr = NULL;
setaparam("match", arr);
setaparam("mbegin", mbegin);
setaparam("mend", mend);
}
}
}
else
zregex_regerrwarn(r, &re, "regex matching error");
break;
default:
DPUTS(1, "bad regex option");
return_value = 0;
goto CLEAN_BASEMETA;
}
if (matches)
zfree(matches, matchessz);
regfree(&re);
CLEAN_BASEMETA:
free(lhstr);
free(rhre);
return return_value;
}
