| <html> |
| <head> |
| <title>pcre2_set_compile_recursion_guard specification</title> |
| </head> |
| <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB"> |
| <h1>pcre2_set_compile_recursion_guard man page</h1> |
| <p> |
| Return to the <a href="index.html">PCRE2 index page</a>. |
| </p> |
| <p> |
| This page is part of the PCRE2 HTML documentation. It was generated |
| automatically from the original man page. If there is any nonsense in it, |
| please consult the man page, in case the conversion went wrong. |
| <br> |
| <br><b> |
| SYNOPSIS |
| </b><br> |
| <P> |
| <b>#include <pcre2.h></b> |
| </P> |
| <P> |
| <b>int pcre2_set_compile_recursion_guard(pcre2_compile_context *<i>ccontext</i>,</b> |
| <b> int (*<i>guard_function</i>)(uint32_t, void *), void *<i>user_data</i>);</b> |
| </P> |
| <br><b> |
| DESCRIPTION |
| </b><br> |
| <P> |
| This function defines, within a compile context, a function that is called |
| whenever <b>pcre2_compile()</b> 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 supplied 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 <b>pcre2_set_compile_recursion_guard()</b> is always zero. |
| </P> |
| <P> |
| There is a complete description of the PCRE2 native API in the |
| <a href="pcre2api.html"><b>pcre2api</b></a> |
| page and a description of the POSIX API in the |
| <a href="pcre2posix.html"><b>pcre2posix</b></a> |
| page. |
| <p> |
| Return to the <a href="index.html">PCRE2 index page</a>. |
| </p> |