PCRE - Perl-compatible regular expressions
int pcre_get_substring_list(const char *subject,
int *ovector, int stringcount, const char ***listptr);
This is a convenience function for extracting a list of all the cap‐
tured substrings. The arguments are:
subject Subject that has been successfully matched
ovector Offset vector that pcre_exec used
stringcount Value returned by pcre_exec
listptr Where to put a pointer to the list
The yield is zero on success or PCRE_ERROR_NOMEMORY if sufficient mem‐
ory could not be obtained.
There is a complete description of the PCRE API in the pcreapi page.