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revision 71 by nigel, Sat Feb 24 21:40:24 2007 UTC revision 75 by nigel, Sat Feb 24 21:40:37 2007 UTC
# Line 3  Line 3 
3  <title>pcre_exec specification</title>  <title>pcre_exec specification</title>
4  </head>  </head>
5  <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">  <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6  This HTML document has been generated automatically from the original man page.  <h1>pcre_exec man page</h1>
7  If there is any nonsense in it, please consult the man page, in case the  <p>
8  conversion went wrong.<br>  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>  <br><b>
16  SYNOPSIS  SYNOPSIS
17  </b><br>  </b><br>
# Line 23  DESCRIPTION Line 29  DESCRIPTION
29  <P>  <P>
30  This function matches a compiled regular expression against a given subject  This function matches a compiled regular expression against a given subject
31  string, and returns offsets to capturing subexpressions. Its arguments are:  string, and returns offsets to capturing subexpressions. Its arguments are:
 </P>  
 <P>  
32  <pre>  <pre>
33    <i>code</i>         Points to the compiled pattern    <i>code</i>         Points to the compiled pattern
34    <i>extra</i>        Points to an associated <b>pcre_extra</b> structure,    <i>extra</i>        Points to an associated <b>pcre_extra</b> structure,
# Line 35  string, and returns offsets to capturing Line 39  string, and returns offsets to capturing
39                   start matching                   start matching
40    <i>options</i>      Option bits    <i>options</i>      Option bits
41    <i>ovector</i>      Points to a vector of ints for result offsets    <i>ovector</i>      Points to a vector of ints for result offsets
42    <i>ovecsize</i>     Size of the vector (a multiple of 3)    <i>ovecsize</i>     Number of elements in the vector (a multiple of 3)
43  </PRE>  </pre>
 </P>  
 <P>  
44  The options are:  The options are:
 </P>  
 <P>  
45  <pre>  <pre>
46    PCRE_ANCHORED      Match only at the first position    PCRE_ANCHORED      Match only at the first position
47    PCRE_NOTBOL        Subject is not the beginning of a line    PCRE_NOTBOL        Subject is not the beginning of a line
# Line 50  The options are: Line 50  The options are:
50    PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8    PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
51                         validity (only relevant if PCRE_UTF8                         validity (only relevant if PCRE_UTF8
52                         was set at compile time)                         was set at compile time)
53  </PRE>    PCRE_PARTIAL       Return PCRE_ERROR_PARTIAL for a partial match
54    </pre>
55    There are restrictions on what may appear in a pattern when partial matching is
56    requested.
57    </P>
58    <P>
59    A <b>pcre_extra</b> structure contains the following fields:
60    <pre>
61      <i>flags</i>        Bits indicating which fields are set
62      <i>study_data</i>   Opaque data from <b>pcre_study()</b>
63      <i>match_limit</i>  Limit on internal recursion
64      <i>callout_data</i> Opaque data passed back to callouts
65      <i>tables</i>       Points to character tables or is NULL
66    </pre>
67    The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
68    PCRE_EXTRA_CALLOUT_DATA, and PCRE_EXTRA_TABLES.
69  </P>  </P>
70  <P>  <P>
71  There is a complete description of the PCRE API in the  There is a complete description of the PCRE native API in the
72  <a href="pcreapi.html"><b>pcreapi</b></a>  <a href="pcreapi.html"><b>pcreapi</b></a>
73    page and a description of the POSIX API in the
74    <a href="pcreposix.html"><b>pcreposix</b></a>
75  page.  page.
76    <p>
77    Return to the <a href="index.html">PCRE index page</a>.
78    </p>

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