Annotation of embedaddon/pcre/doc/html/pcre_jit_exec.html, revision 1.1.1.1
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2: <head>
3: <title>pcre_jit_exec specification</title>
4: </head>
5: <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6: <h1>pcre_jit_exec 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>int pcre_jit_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
23: <b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
24: <b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
25: <b>pcre_jit_stack *<i>jstack</i>);</b>
26: </P>
27: <P>
28: <b>int pcre16_jit_exec(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
29: <b>PCRE_SPTR16 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
30: <b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
31: <b>pcre_jit_stack *<i>jstack</i>);</b>
32: </P>
33: <P>
34: <b>int pcre32_jit_exec(const pcre32 *<i>code</i>, const pcre32_extra *<i>extra</i>,</b>
35: <b>PCRE_SPTR32 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
36: <b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
37: <b>pcre_jit_stack *<i>jstack</i>);</b>
38: </P>
39: <br><b>
40: DESCRIPTION
41: </b><br>
42: <P>
43: This function matches a compiled regular expression that has been successfully
44: studied with one of the JIT options against a given subject string, using a
45: matching algorithm that is similar to Perl's. It is a "fast path" interface to
46: JIT, and it bypasses some of the sanity checks that <b>pcre_exec()</b> applies.
47: It returns offsets to captured substrings. Its arguments are:
48: <pre>
49: <i>code</i> Points to the compiled pattern
50: <i>extra</i> Points to an associated <b>pcre[16|32]_extra</b> structure,
51: or is NULL
52: <i>subject</i> Points to the subject string
53: <i>length</i> Length of the subject string, in bytes
54: <i>startoffset</i> Offset in bytes in the subject at which to
55: start matching
56: <i>options</i> Option bits
57: <i>ovector</i> Points to a vector of ints for result offsets
58: <i>ovecsize</i> Number of elements in the vector (a multiple of 3)
59: <i>jstack</i> Pointer to a JIT stack
60: </pre>
61: The allowed options are:
62: <pre>
63: PCRE_NOTBOL Subject string is not the beginning of a line
64: PCRE_NOTEOL Subject string is not the end of a line
65: PCRE_NOTEMPTY An empty string is not a valid match
66: PCRE_NOTEMPTY_ATSTART An empty string at the start of the subject
67: is not a valid match
68: PCRE_NO_UTF16_CHECK Do not check the subject for UTF-16
69: validity (only relevant if PCRE_UTF16
70: was set at compile time)
71: PCRE_NO_UTF32_CHECK Do not check the subject for UTF-32
72: validity (only relevant if PCRE_UTF32
73: was set at compile time)
74: PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
75: validity (only relevant if PCRE_UTF8
76: was set at compile time)
77: PCRE_PARTIAL ) Return PCRE_ERROR_PARTIAL for a partial
78: PCRE_PARTIAL_SOFT ) match if no full matches are found
79: PCRE_PARTIAL_HARD Return PCRE_ERROR_PARTIAL for a partial match
80: if that is found before a full match
81: </pre>
82: However, the PCRE_NO_UTF[8|16|32]_CHECK options have no effect, as this check
83: is never applied. For details of partial matching, see the
84: <a href="pcrepartial.html"><b>pcrepartial</b></a>
85: page. A <b>pcre_extra</b> structure contains the following fields:
86: <pre>
87: <i>flags</i> Bits indicating which fields are set
88: <i>study_data</i> Opaque data from <b>pcre[16|32]_study()</b>
89: <i>match_limit</i> Limit on internal resource use
90: <i>match_limit_recursion</i> Limit on internal recursion depth
91: <i>callout_data</i> Opaque data passed back to callouts
92: <i>tables</i> Points to character tables or is NULL
93: <i>mark</i> For passing back a *MARK pointer
94: <i>executable_jit</i> Opaque data from JIT compilation
95: </pre>
96: The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
97: PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
98: PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT.
99: </P>
100: <P>
101: There is a complete description of the PCRE native API in the
102: <a href="pcreapi.html"><b>pcreapi</b></a>
103: page and a description of the JIT API in the
104: <a href="pcrejit.html"><b>pcrejit</b></a>
105: page.
106: <p>
107: Return to the <a href="index.html">PCRE index page</a>.
108: </p>
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