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1 <html>
2 <head>
3 <title>pcre_config specification</title>
4 </head>
5 <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6 <h1>pcre_config man page</h1>
7 <p>
8 Return to the <a href="index.html">PCRE index page</a>.
9 </p>
10 <p>
11 This page is part of the PCRE HTML documentation. It was generated automatically
12 from the original man page. If there is any nonsense in it, please consult the
13 man page, in case the conversion went wrong.
14 <br>
15 <br><b>
16 SYNOPSIS
17 </b><br>
18 <P>
19 <b>#include &#60;pcre.h&#62;</b>
20 </P>
21 <P>
22 <b>int pcre_config(int <i>what</i>, void *<i>where</i>);</b>
23 </P>
24 <P>
25 <b>int pcre16_config(int <i>what</i>, void *<i>where</i>);</b>
26 </P>
27 <P>
28 <b>int pcre32_config(int <i>what</i>, void *<i>where</i>);</b>
29 </P>
30 <br><b>
31 DESCRIPTION
32 </b><br>
33 <P>
34 This function makes it possible for a client program to find out which optional
35 features are available in the version of the PCRE library it is using. The
36 arguments are as follows:
37 <pre>
38 <i>what</i> A code specifying what information is required
39 <i>where</i> Points to where to put the data
40 </pre>
41 The <i>where</i> argument must point to an integer variable, except for
42 PCRE_CONFIG_MATCH_LIMIT, PCRE_CONFIG_MATCH_LIMIT_RECURSION, and
43 PCRE_CONFIG_PARENS_LIMIT, when it must point to an unsigned long integer,
44 and for PCRE_CONFIG_JITTARGET, when it must point to a const char*.
45 The available codes are:
46 <pre>
47 PCRE_CONFIG_JIT Availability of just-in-time compiler
48 support (1=yes 0=no)
49 PCRE_CONFIG_JITTARGET String containing information about the
50 target architecture for the JIT compiler,
51 or NULL if there is no JIT support
52 PCRE_CONFIG_LINK_SIZE Internal link size: 2, 3, or 4
53 PCRE_CONFIG_PARENS_LIMIT Parentheses nesting limit
54 PCRE_CONFIG_MATCH_LIMIT Internal resource limit
55 PCRE_CONFIG_MATCH_LIMIT_RECURSION
56 Internal recursion depth limit
57 PCRE_CONFIG_NEWLINE Value of the default newline sequence:
58 13 (0x000d) for CR
59 10 (0x000a) for LF
60 3338 (0x0d0a) for CRLF
61 -2 for ANYCRLF
62 -1 for ANY
63 PCRE_CONFIG_BSR Indicates what \R matches by default:
64 0 all Unicode line endings
65 1 CR, LF, or CRLF only
66 PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
67 Threshold of return slots, above which
68 <b>malloc()</b> is used by the POSIX API
69 PCRE_CONFIG_STACKRECURSE Recursion implementation (1=stack 0=heap)
70 PCRE_CONFIG_UTF16 Availability of UTF-16 support (1=yes
71 0=no); option for <b>pcre16_config()</b>
72 PCRE_CONFIG_UTF32 Availability of UTF-32 support (1=yes
73 0=no); option for <b>pcre32_config()</b>
74 PCRE_CONFIG_UTF8 Availability of UTF-8 support (1=yes 0=no);
75 option for <b>pcre_config()</b>
76 PCRE_CONFIG_UNICODE_PROPERTIES
77 Availability of Unicode property support
78 (1=yes 0=no)
79 </pre>
80 The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error
81 is also given if PCRE_CONFIG_UTF16 or PCRE_CONFIG_UTF32 is passed to
82 <b>pcre_config()</b>, if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF32 is passed to
83 <b>pcre16_config()</b>, or if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF16 is passed to
84 <b>pcre32_config()</b>.
85 </P>
86 <P>
87 There is a complete description of the PCRE native API in the
88 <a href="pcreapi.html"><b>pcreapi</b></a>
89 page and a description of the POSIX API in the
90 <a href="pcreposix.html"><b>pcreposix</b></a>
91 page.
92 <p>
93 Return to the <a href="index.html">PCRE index page</a>.
94 </p>

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