diff options
Diffstat (limited to 'regcomp.c')
| -rw-r--r-- | regcomp.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -967,6 +967,7 @@ S_study_chunk(pTHX_ RExC_state_t *pRExC_state, regnode **scanp, I32 *deltap, reg regnode *oscan = scan; struct regnode_charclass_class this_class; struct regnode_charclass_class *oclass = NULL; + I32 next_is_eval = 0; switch (PL_regkind[(U8)OP(scan)]) { case WHILEM: /* End of (?:...)* . */ @@ -1012,6 +1013,7 @@ S_study_chunk(pTHX_ RExC_state_t *pRExC_state, regnode **scanp, I32 *deltap, reg scan->flags = ((lp <= U8_MAX) ? lp : U8_MAX); } scan = NEXTOPER(scan) + EXTRA_STEP_2ARGS; + next_is_eval = (OP(scan) == EVAL); do_curly: if (flags & SCF_DO_SUBSTR) { if (mincount == 0) scan_commit(pRExC_state,data); /* Cannot extend fixed substrings */ @@ -1073,6 +1075,8 @@ S_study_chunk(pTHX_ RExC_state_t *pRExC_state, regnode **scanp, I32 *deltap, reg if (!scan) /* It was not CURLYX, but CURLY. */ scan = next; if (ckWARN(WARN_REGEXP) + /* ? quantifier ok, except for (?{ ... }) */ + && (next_is_eval || !(mincount == 0 && maxcount == 1)) && (minnext == 0) && (deltanext == 0) && data && !(data->flags & (SF_HAS_PAR|SF_IN_PAR)) && maxcount <= REG_INFTY/3) /* Complement check for big count */ |