OpenGrok

PCRE - Perl-compatible regular expressions .rs #include <pcre.h>

 int pcre_get_stringtable_entries(const pcre *code,  " const char *name, char **first, char **last);"  int pcre16_get_stringtable_entries(const pcre16 *code,  " PCRE_SPTR16 name, PCRE_UCHAR16 **first, PCRE_UCHAR16 **last);"  int pcre32_get_stringtable_entries(const pcre32 *code,  " PCRE_SPTR32 name, PCRE_UCHAR32 **first, PCRE_UCHAR32 **last);" 

. .rs This convenience function finds, for a compiled pattern, the first and last entries for a given name in the table that translates capturing parenthesis names into numbers. When names are required to be unique (PCRE_DUPNAMES is not set), it is usually easier to use pcre[16|32]_get_stringnumber() instead. code Compiled regular expression name Name whose entries required first Where to return a pointer to the first entry last Where to return a pointer to the last entry The yield of the function is the length of each entry, or PCRE_ERROR_NOSUBSTRING if none are found.

There is a complete description of the PCRE native API, including the format of the table entries, in the HREF
pcreapi
page, and a description of the POSIX API in the HREF
pcreposix
page.