Annotation of embedaddon/pcre/doc/html/pcre_jit_exec.html, revision 1.1
1.1 ! misho 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: </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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