code the compiled regex
stringname the name of the capturing substring
ovector the vector of matched substrings
+ stringcount number of captured substrings
Returns: the number of the first that is set,
or the number of the last one if none are set,
#if defined COMPILE_PCRE8
static int
-get_first_set(const pcre *code, const char *stringname, int *ovector)
+get_first_set(const pcre *code, const char *stringname, int *ovector,
+ int stringcount)
#elif defined COMPILE_PCRE16
static int
-get_first_set(const pcre16 *code, PCRE_SPTR16 stringname, int *ovector)
+get_first_set(const pcre16 *code, PCRE_SPTR16 stringname, int *ovector,
+ int stringcount)
#elif defined COMPILE_PCRE32
static int
-get_first_set(const pcre32 *code, PCRE_SPTR32 stringname, int *ovector)
+get_first_set(const pcre32 *code, PCRE_SPTR32 stringname, int *ovector,
+ int stringcount)
#endif
{
const REAL_PCRE *re = (const REAL_PCRE *)code;
for (entry = (pcre_uchar *)first; entry <= (pcre_uchar *)last; entry += entrysize)
{
int n = GET2(entry, 0);
- if (ovector[n*2] >= 0) return n;
+ if (n < stringcount && ovector[n*2] >= 0) return n;
}
return GET2(entry, 0);
}
PCRE_UCHAR32 *buffer, int size)
#endif
{
-int n = get_first_set(code, stringname, ovector);
+int n = get_first_set(code, stringname, ovector, stringcount);
if (n <= 0) return n;
#if defined COMPILE_PCRE8
return pcre_copy_substring(subject, ovector, stringcount, n, buffer, size);
pcre_uchar *p;
for (i = 0; i < double_count; i += 2)
- size += sizeof(pcre_uchar *) + IN_UCHARS(ovector[i+1] - ovector[i] + 1);
+ {
+ size += sizeof(pcre_uchar *) + IN_UCHARS(1);
+ if (ovector[i+1] > ovector[i]) size += IN_UCHARS(ovector[i+1] - ovector[i]);
+ }
stringlist = (pcre_uchar **)(PUBL(malloc))(size);
if (stringlist == NULL) return PCRE_ERROR_NOMEMORY;
for (i = 0; i < double_count; i += 2)
{
- int len = ovector[i+1] - ovector[i];
+ int len = (ovector[i+1] > ovector[i])? (ovector[i+1] - ovector[i]) : 0;
memcpy(p, subject + ovector[i], IN_UCHARS(len));
*stringlist++ = p;
p += len;
PCRE_SPTR32 *stringptr)
#endif
{
-int n = get_first_set(code, stringname, ovector);
+int n = get_first_set(code, stringname, ovector, stringcount);
if (n <= 0) return n;
#if defined COMPILE_PCRE8
return pcre_get_substring(subject, ovector, stringcount, n, stringptr);