pcre_copy_substring - Man Page

#include <pcre.h>

int pcre_copy_substring(const char *subject, int *ovector,
     int stringcount, int stringnumber, char *buffer,
     int buffersize);

int pcre16_copy_substring(PCRE_SPTR16 subject, int *ovector,
     int stringcount, int stringnumber, PCRE_UCHAR16 *buffer,
     int buffersize);

int pcre32_copy_substring(PCRE_SPTR32 subject, int *ovector,
     int stringcount, int stringnumber, PCRE_UCHAR32 *buffer,
     int buffersize);

This is a convenience function for extracting a captured substring into a given buffer. The arguments are:

 subject       Subject that has been successfully matched
 ovector       Offset vector that pcre[16|32]_exec() used
 stringcount   Value returned by pcre[16|32]_exec()
 stringnumber  Number of the required substring
 buffer        Buffer to receive the string
 buffersize    Size of buffer

The yield is the length of the string, PCRE_ERROR_NOMEMORY if the buffer was too small, or PCRE_ERROR_NOSUBSTRING if the string number is invalid.

There is a complete description of the PCRE native API in the pcreapi page and a description of the POSIX API in the pcreposix page.

The man pages pcre16_copy_substring(3) and pcre32_copy_substring(3) are aliases of pcre_copy_substring(3).