DESCRIPTION

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_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 pcreapi(3) page, and a description of the POSIX API in the pcreposix(3) page.