1 <html> 2 <head> 3 <title>pcre2_config specification</title> 4 </head> 5 <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB"> 6 <h1>pcre2_config man page</h1> 7 <p> 8 Return to the <a href="index.html">PCRE2 index page</a>. 9 </p> 10 <p> 11 This page is part of the PCRE2 HTML documentation. It was generated 12 automatically from the original man page. If there is any nonsense in it, 13 please consult the man page, in case the conversion went wrong. 14 <br> 15 <br><b> 16 SYNOPSIS 17 </b><br> 18 <P> 19 <b>#include <pcre2.h></b> 20 </P> 21 <P> 22 <b>int pcre2_config(uint32_t <i>what</i>, void *<i>where</i>);</b> 23 </P> 24 <br><b> 25 DESCRIPTION 26 </b><br> 27 <P> 28 This function makes it possible for a client program to find out which optional 29 features are available in the version of the PCRE2 library it is using. The 30 arguments are as follows: 31 <pre> 32 <i>what</i> A code specifying what information is required 33 <i>where</i> Points to where to put the information 34 </pre> 35 If <i>where</i> is NULL, the function returns the amount of memory needed for 36 the requested information. When the information is a string, the value is in 37 code units; for other types of data it is in bytes. 38 </P> 39 <P> 40 If <b>where</b> is not NULL, for PCRE2_CONFIG_JITTARGET, 41 PCRE2_CONFIG_UNICODE_VERSION, and PCRE2_CONFIG_VERSION it must point to a 42 buffer that is large enough to hold the string. For all other codes it must 43 point to a uint32_t integer variable. The available codes are: 44 <pre> 45 PCRE2_CONFIG_BSR Indicates what \R matches by default: 46 PCRE2_BSR_UNICODE 47 PCRE2_BSR_ANYCRLF 48 PCRE2_CONFIG_JIT Availability of just-in-time compiler 49 support (1=yes 0=no) 50 PCRE2_CONFIG_JITTARGET Information about the target archi- 51 tecture for the JIT compiler 52 PCRE2_CONFIG_LINKSIZE Configured internal link size (2, 3, 4) 53 PCRE2_CONFIG_MATCHLIMIT Default internal resource limit 54 PCRE2_CONFIG_NEWLINE Code for the default newline sequence: 55 PCRE2_NEWLINE_CR 56 PCRE2_NEWLINE_LF 57 PCRE2_NEWLINE_CRLF 58 PCRE2_NEWLINE_ANY 59 PCRE2_NEWLINE_ANYCRLF 60 PCRE2_CONFIG_PARENSLIMIT Default parentheses nesting limit 61 PCRE2_CONFIG_RECURSIONLIMIT Internal recursion depth limit 62 PCRE2_CONFIG_STACKRECURSE Recursion implementation (1=stack 63 0=heap) 64 PCRE2_CONFIG_UNICODE Availability of Unicode support (1=yes 65 0=no) 66 PCRE2_CONFIG_UNICODE_VERSION The Unicode version (a string) 67 PCRE2_CONFIG_VERSION The PCRE2 version (a string) 68 </pre> 69 The function yields a non-negative value on success or the negative value 70 PCRE2_ERROR_BADOPTION otherwise. This is also the result for the 71 PCRE2_CONFIG_JITTARGET code if JIT support is not available. When a string is 72 requested, the function returns the number of code units used, including the 73 terminating zero. 74 </P> 75 <P> 76 There is a complete description of the PCRE2 native API in the 77 <a href="pcre2api.html"><b>pcre2api</b></a> 78 page and a description of the POSIX API in the 79 <a href="pcre2posix.html"><b>pcre2posix</b></a> 80 page. 81 <p> 82 Return to the <a href="index.html">PCRE2 index page</a>. 83 </p> 84
