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3: <title>pcre_study specification</title>
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5: <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6: <h1>pcre_study 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 <pcre.h></b>
20: </P>
21: <P>
22: <b>pcre_extra *pcre_study(const pcre *<i>code</i>, int <i>options</i>,</b>
23: <b>const char **<i>errptr</i>);</b>
24: </P>
25: <br><b>
26: DESCRIPTION
27: </b><br>
28: <P>
29: This function studies a compiled pattern, to see if additional information can
30: be extracted that might speed up matching. Its arguments are:
31: <pre>
32: <i>code</i> A compiled regular expression
33: <i>options</i> Options for <b>pcre_study()</b>
34: <i>errptr</i> Where to put an error message
35: </pre>
36: If the function succeeds, it returns a value that can be passed to
37: <b>pcre_exec()</b> or <b>pcre_dfa_exec()</b> via their <i>extra</i> arguments.
38: </P>
39: <P>
40: If the function returns NULL, either it could not find any additional
41: information, or there was an error. You can tell the difference by looking at
42: the error value. It is NULL in first case.
43: </P>
44: <P>
45: The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-time compilation
46: if possible. If PCRE has been compiled without JIT support, this option is
47: ignored. See the
48: <a href="pcrejit.html"><b>pcrejit</b></a>
49: page for further details.
50: </P>
51: <P>
52: There is a complete description of the PCRE native API in the
53: <a href="pcreapi.html"><b>pcreapi</b></a>
54: page and a description of the POSIX API in the
55: <a href="pcreposix.html"><b>pcreposix</b></a>
56: page.
57: <p>
58: Return to the <a href="index.html">PCRE index page</a>.
59: </p>
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