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PCRE2_SUBSTRING_NAMETABLE_SCAN
Section: C Library Functions (3) Updated: 06 February 2019 Index
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NAME
PCRE2- Per-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
int pcre2_substring_nametable_scan(const pcre2_code *code,
PCRE2_SPTR name, PCRE2_SPTR *first, PCRE2_SPTR *last);
DESCRIPTION
This convenience function finds, for a compiled pattern, the first and last
entries for a given name in the table that translates capture group names into
numbers.
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
When the name is found in the table, if first is NULL, the function
returns a group number, but if there is more than one matching entry, it is not
defined which one. Otherwise, when both pointers have been set, the yield of
the function is the length of each entry in code units. If the name is not
found, PCRE2_ERROR_NOSUBSTRING is returned.
There is a complete description of the PCRE2 native API, including the format of
the table entries, 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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