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1 <html>
2 <head>
3 <title>pcre_exec specification</title>
4 </head>
5 <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6 This HTML document has been generated automatically from the original man page.
7 If there is any nonsense in it, please consult the man page, in case the
8 conversion went wrong.<br>
9 <br><b>
10 SYNOPSIS
11 </b><br>
12 <P>
13 <b>#include &#60;pcre.h&#62;</b>
14 </P>
15 <P>
16 <b>int pcre_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
17 <b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
18 <b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
19 </P>
20 <br><b>
21 DESCRIPTION
22 </b><br>
23 <P>
24 This function matches a compiled regular expression against a given subject
25 string, and returns offsets to capturing subexpressions. Its arguments are:
26 </P>
27 <P>
28 <pre>
29 <i>code</i> Points to the compiled pattern
30 <i>extra</i> Points to an associated <b>pcre_extra</b> structure,
31 or is NULL
32 <i>subject</i> Points to the subject string
33 <i>length</i> Length of the subject string, in bytes
34 <i>startoffset</i> Offset in bytes in the subject at which to
35 start matching
36 <i>options</i> Option bits
37 <i>ovector</i> Points to a vector of ints for result offsets
38 <i>ovecsize</i> Size of the vector (a multiple of 3)
39 </PRE>
40 </P>
41 <P>
42 The options are:
43 </P>
44 <P>
45 <pre>
46 PCRE_ANCHORED Match only at the first position
47 PCRE_NOTBOL Subject is not the beginning of a line
48 PCRE_NOTEOL Subject is not the end of a line
49 PCRE_NOTEMPTY An empty string is not a valid match
50 PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
51 validity (only relevant if PCRE_UTF8
52 was set at compile time)
53 </PRE>
54 </P>
55 <P>
56 There is a complete description of the PCRE API in the
57 <a href="pcreapi.html"><b>pcreapi</b></a>
58 page.

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