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Updated: Thursday, June 13, 2019
 
 

pcre2_set_compile_recursion_guard (3)

Name

pcre2_set_compile_recursion_guard - compatible regular expressions (revised API)

Synopsis

#include <pcre2.h>

int pcre2_set_compile_recursion_guard(pcre2_compile_context *ccontext,
int (*guard_function)(uint32_t, void *), void *user_data);

Description

Library Functions Manual                  PCRE2_SET_COMPILE_RECURSION_GUARD(3)



NAME
       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS

       #include <pcre2.h>

       int pcre2_set_compile_recursion_guard(pcre2_compile_context *ccontext,
         int (*guard_function)(uint32_t, void *), void *user_data);

DESCRIPTION

       This  function  defines,  within  a compile context, a function that is
       called whenever pcre2_compile() starts to compile a parenthesized  part
       of  a  pattern.  The  first  argument to the function gives the current
       depth of parenthesis nesting, and the second is user data that is  sup-
       plied  when  the function is set up. The callout function should return
       zero if all is well, or non-zero to force an  error.  This  feature  is
       provided  so  that  applications  can  check the available system stack
       space, in order to avoid running  out.  The  result  of  pcre2_set_com-
       pile_recursion_guard() is always zero.

       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.



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/pcre2    |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source was downloaded  from   ftp://ftp.csx.cam.ac.uk/pub/software/pro-
       gramming/pcre/pcre2-10.32.tar.gz

       Further information about this software can be found on the open source
       community website at http://pcre.org/.



PCRE2 10.00                     22 October 2014
                                          PCRE2_SET_COMPILE_RECURSION_GUARD(3)