GET_RE_DEBUG_FLAGS_DECL;
PERL_ARGS_ASSERT_RE_INTUIT_START;
+ PERL_UNUSED_ARG(flags);
+ PERL_UNUSED_ARG(data);
RX_MATCH_UTF8_set(rx,utf8_target);
{
I32 srch_start_shift = start_shift;
I32 srch_end_shift = end_shift;
+ U8* start_point;
+ U8* end_point;
if (srch_start_shift < 0 && strbeg - s > srch_start_shift) {
srch_end_shift -= ((strbeg - s) - srch_start_shift);
srch_start_shift = strbeg - s;
(IV)prog->check_end_shift);
});
- if ((flags & REXEC_SCREAM) && SvSCREAM(sv)) {
- I32 p = -1; /* Internal iterator of scream. */
- I32 * const pp = data ? data->scream_pos : &p;
- const MAGIC *mg;
- bool found = FALSE;
-
- assert(SvMAGICAL(sv));
- mg = mg_find(sv, PERL_MAGIC_study);
- assert(mg);
-
- if (mg->mg_private == 1) {
- found = ((U8 *)mg->mg_ptr)[BmRARE(check)] != (U8)~0;
- } else if (mg->mg_private == 2) {
- found = ((U16 *)mg->mg_ptr)[BmRARE(check)] != (U16)~0;
- } else {
- assert (mg->mg_private == 4);
- found = ((U32 *)mg->mg_ptr)[BmRARE(check)] != (U32)~0;
- }
-
- if (found
- || ( BmRARE(check) == '\n'
- && (BmPREVIOUS(check) == SvCUR(check) - 1)
- && SvTAIL(check) ))
- s = screaminstr(sv, check,
- srch_start_shift + (s - strbeg), srch_end_shift, pp, 0);
- else
- goto fail_finish;
- /* we may be pointing at the wrong string */
- if (s && RXp_MATCH_COPIED(prog))
- s = strbeg + (s - SvPVX_const(sv));
- if (data)
- *data->scream_olds = s;
- }
- else {
- U8* start_point;
- U8* end_point;
if (prog->extflags & RXf_CANY_SEEN) {
start_point= (U8*)(s + srch_start_shift);
end_point= (U8*)(strend - srch_end_shift);
s = fbm_instr( start_point, end_point,
check, multiline ? FBMrf_MULTILINE : 0);
}
- }
/* Update the count-of-usability, remove useless subpatterns,
unshift s. */
dontbother = end_shift;
strend = HOPc(strend, -dontbother);
while ( (s <= last) &&
- ((flags & REXEC_SCREAM) && SvSCREAM(sv)
- ? (s = screaminstr(sv, must, HOP3c(s, back_min, (back_min<0 ? strbeg : strend)) - strbeg,
- end_shift, &scream_pos, 0))
- : (s = fbm_instr((unsigned char*)HOP3(s, back_min, (back_min<0 ? strbeg : strend)),
+ (s = fbm_instr((unsigned char*)HOP3(s, back_min, (back_min<0 ? strbeg : strend)),
(unsigned char*)strend, must,
- multiline ? FBMrf_MULTILINE : 0))) ) {
- /* we may be pointing at the wrong string */
- if ((flags & REXEC_SCREAM) && RXp_MATCH_COPIED(prog))
- s = strbeg + (s - SvPVX_const(sv));
+ multiline ? FBMrf_MULTILINE : 0)) ) {
DEBUG_EXECUTE_r( did_match = 1 );
if (HOPc(s, -back_max) > last1) {
last1 = HOPc(s, -back_min);
dontbother = 0;
if (prog->float_substr != NULL || prog->float_utf8 != NULL) {
/* Trim the end. */
- char *last;
+ char *last= NULL;
SV* float_real;
+ STRLEN len;
+ const char *little;
if (!(utf8_target ? prog->float_utf8 : prog->float_substr))
utf8_target ? to_utf8_substr(prog) : to_byte_substr(prog);
float_real = utf8_target ? prog->float_utf8 : prog->float_substr;
- if ((flags & REXEC_SCREAM) && SvSCREAM(sv)) {
- last = screaminstr(sv, float_real, s - strbeg,
- end_shift, &scream_pos, 1); /* last one */
- if (!last)
- last = scream_olds; /* Only one occurrence. */
- /* we may be pointing at the wrong string */
- else if (RXp_MATCH_COPIED(prog))
- s = strbeg + (s - SvPVX_const(sv));
- }
- else {
- STRLEN len;
- const char * const little = SvPV_const(float_real, len);
- if (SvTAIL(float_real)) {
+ little = SvPV_const(float_real, len);
+ if (SvTAIL(float_real)) {
/* This means that float_real contains an artificial \n on the end
* due to the presence of something like this: /foo$/
* where we can match both "foo" and "foo\n" at the end of the string.
/* multiline match, so we have to search for a place where the full string is located */
goto find_last;
}
- } else {
+ } else {
find_last:
if (len)
last = rninstr(s, strend, little, little + len);
else
last = strend; /* matching "$" */
- }
}
- assert(last != NULL); /* the re_debug output below suggests we need this assert() */
- if (last == NULL) {
+ if (!last) {
+ /* at one point this block contained a comment which was probably
+ * incorrect, which said that this was a "should not happen" case.
+ * Even if it was true when it was written I am pretty sure it is
+ * not anymore, so I have removed the comment and replaced it with
+ * this one. Yves */
DEBUG_EXECUTE_r(
PerlIO_printf(Perl_debug_log,
- "%sCan't trim the tail, match fails (should not happen)%s\n",
- PL_colors[4], PL_colors[5]));
- goto phooey; /* Should not happen! */
+ "String does not contain required substring, cannot match.\n"
+ ));
+ goto phooey;
}
dontbother = strend - last + prog->float_min_offset;
}
}
else { /* UTF_PATTERN */
if (IS_TEXTFU(text_node) || IS_TEXTF(text_node)) {
- STRLEN ulen1, ulen2;
- U8 tmpbuf1[UTF8_MAXBYTES_CASE+1];
- U8 tmpbuf2[UTF8_MAXBYTES_CASE+1];
+ STRLEN ulen;
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
- to_utf8_lower((U8*)s, tmpbuf1, &ulen1);
- to_utf8_upper((U8*)s, tmpbuf2, &ulen2);
-#ifdef EBCDIC
- ST.c1 = utf8n_to_uvchr(tmpbuf1, UTF8_MAXLEN, 0,
- ckWARN(WARN_UTF8) ?
- 0 : UTF8_ALLOW_ANY);
- ST.c2 = utf8n_to_uvchr(tmpbuf2, UTF8_MAXLEN, 0,
- ckWARN(WARN_UTF8) ?
- 0 : UTF8_ALLOW_ANY);
-#else
- ST.c1 = utf8n_to_uvuni(tmpbuf1, UTF8_MAXBYTES, 0,
+ to_utf8_fold((U8*)s, tmpbuf, &ulen);
+ ST.c1 = ST.c2 = utf8n_to_uvchr(tmpbuf, UTF8_MAXLEN, 0,
uniflags);
- ST.c2 = utf8n_to_uvuni(tmpbuf2, UTF8_MAXBYTES, 0,
- uniflags);
-#endif
}
else {
ST.c2 = ST.c1 = utf8n_to_uvchr(s, UTF8_MAXBYTES, 0,
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
- * indent-tabs-mode: t
+ * indent-tabs-mode: nil
* End:
*
- * ex: set ts=8 sts=4 sw=4 noet:
+ * ex: set ts=8 sts=4 sw=4 et:
*/
https://perl5.git.perl.org / perl5.git / blobdiff