diff options
Diffstat (limited to 'src/pcre2_substring.c')
| -rw-r--r-- | src/pcre2_substring.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/pcre2_substring.c b/src/pcre2_substring.c index 0b42d30..3faecd0 100644 --- a/src/pcre2_substring.c +++ b/src/pcre2_substring.c @@ -409,7 +409,8 @@ Arguments: firstptr where to put the pointer to the first entry lastptr where to put the pointer to the last entry -Returns: if firstptr and lastptr are NULL, a group number; +Returns: if firstptr and lastptr are NULL, a group number for a + unique substring, or PCRE2_ERROR_NOUNIQUESUBSTRING otherwise, the length of each entry, or a negative number (PCRE2_ERROR_NOSUBSTRING) if not found */ @@ -433,7 +434,6 @@ while (top > bot) PCRE2_SPTR first; PCRE2_SPTR last; PCRE2_SPTR lastentry; - if (firstptr == NULL) return GET2(entry, 0); lastentry = nametable + entrysize * (code->name_count - 1); first = last = entry; while (first > nametable) @@ -446,6 +446,8 @@ while (top > bot) if (PRIV(strcmp)(stringname, (last + entrysize + IMM2_SIZE)) != 0) break; last += entrysize; } + if (firstptr == NULL) + return (first == last)? (int)GET2(entry, 0) : PCRE2_ERROR_NOUNIQUESUBSTRING; *firstptr = first; *lastptr = last; return entrysize; |