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      3 <title>pcre_config specification</title>
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      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
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     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 <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 PCRE library it is using. Its
     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 data
     34 </pre>
     35 The available codes are:
     36 <pre>
     37   PCRE_CONFIG_LINK_SIZE     Internal link size: 2, 3, or 4
     38   PCRE_CONFIG_MATCH_LIMIT   Internal resource limit
     39   PCRE_CONFIG_MATCH_LIMIT_RECURSION
     40                             Internal recursion depth limit
     41   PCRE_CONFIG_NEWLINE       Value of the default newline sequence:
     42                                 13 (0x000d)    for CR
     43                                 10 (0x000a)    for LF
     44                               3338 (0x0d0a)    for CRLF
     45                                 -2             for ANYCRLF
     46                                 -1             for ANY
     47   PCRE_CONFIG_BSR           Indicates what \R matches by default:
     48                                  0             all Unicode line endings
     49                                  1             CR, LF, or CRLF only
     50   PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
     51                             Threshold of return slots, above
     52                               which <b>malloc()</b> is used by
     53                               the POSIX API
     54   PCRE_CONFIG_STACKRECURSE  Recursion implementation (1=stack 0=heap)
     55   PCRE_CONFIG_UTF8          Availability of UTF-8 support (1=yes 0=no)
     56   PCRE_CONFIG_UNICODE_PROPERTIES
     57                             Availability of Unicode property support
     58                               (1=yes 0=no)
     59 </pre>
     60 The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise.
     61 </P>
     62 <P>
     63 There is a complete description of the PCRE native API in the
     64 <a href="pcreapi.html"><b>pcreapi</b></a>
     65 page and a description of the POSIX API in the
     66 <a href="pcreposix.html"><b>pcreposix</b></a>
     67 page.
     68 <p>
     69 Return to the <a href="index.html">PCRE index page</a>.
     70 </p>
     71