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1 <html>
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>
17 </b><br>
18 <P>
19 <b>#include &#60;pcre.h&#62;</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 <br>
27 <br>
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 <br>
33 <br>
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>
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>
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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