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PCRE2_SUBSTRING_COPY_BYNUMBER
Section: C Library Functions (3) Updated: 13 December 2014 Index
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NAME
PCRE2- Per-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
int pcre2_substring_copy_bynumber(pcre2_match_data *match_data,
uint32_t number, PCRE2_UCHAR *buffer,
PCRE2_SIZE *bufflen);
DESCRIPTION
This is a convenience function for extracting a captured substring into a given
buffer. The arguments are:
match_data The match data block for the match
number Number of the required substring
buffer Buffer to receive the string
bufflen Length of buffer
The bufflen variable is updated with the length of the extracted string,
excluding the terminating zero. The yield of the function is zero for success
or one of the following error numbers:
PCRE2_ERROR_NOSUBSTRING there are no groups of that number
PCRE2_ERROR_UNAVAILBLE the ovector was too small for that group
PCRE2_ERROR_UNSET the group did not participate in the match
PCRE2_ERROR_NOMEMORY the buffer is too small
There is a complete description of the PCRE2 native API in the
pcre2api
page and a description of the POSIX API in the
pcre2posix
page.
Index
- NAME
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- SYNOPSIS
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- DESCRIPTION
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