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pcre2_substring_copy_bynumber(3) — Linux manual page

PCRE2_SU..._BYNUMBER(3)  Library Functions ManualPCRE2_SU..._BYNUMBER(3)

NAME        top

       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS        top

#include <pcre2.h>int pcre2_substring_copy_bynumber(pcre2_match_data *match_data,uint32_tnumber, PCRE2_UCHAR *buffer,PCRE2_SIZE *bufflen);

DESCRIPTION        top

       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 matchnumber        Number of the required substringbuffer        Buffer to receive the stringbufflen       Length of buffer       Thebufflen 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 thepcre2apipage and a description of the POSIX API in thepcre2posix       page.

COLOPHON        top

       This page is part of thePCRE (Perl Compatible Regular       Expressions) project.  Information about the project can be found       at ⟨http://www.pcre.org/⟩.  If you have a bug report for this       manual page, see       ⟨http://bugs.exim.org/enter_bug.cgi?product=PCRE⟩.  This page was       obtained from the tarball fetched from       ⟨https://github.com/PhilipHazel/pcre2.git⟩ on 2025-08-11.  If you       discover any rendering problems in this HTML version of the page,       or you believe there is a better or more up-to-date source for the       page, or you have corrections or improvements to the information       in this COLOPHON (which isnot part of the original manual page),       send a mail to man-pages@man7.orgPCRE2 10.46-DEV              13 December 2014PCRE2_SU..._BYNUMBER(3)

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