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> 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 <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> 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> 109
