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PCRE_COPY_SUBSTRING(3) FreeBSD Library Functions Manual
NAME PCRE - Perl-compatible regular expressions
SYNOPSIS #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);
DESCRIPTION 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.
PCRE 8.30 24 June 2012 PCRE_COPY_SUBSTRING(3)