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<title>pcre_exec specification</title> |
<title>pcre_exec specification</title> |
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This HTML document has been generated automatically from the original man page. |
<h1>pcre_exec man page</h1> |
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If there is any nonsense in it, please consult the man page, in case the |
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conversion went wrong.<br> |
Return to the <a href="index.html">PCRE index page</a>. |
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This page is part of the PCRE HTML documentation. It was generated automatically |
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from the original man page. If there is any nonsense in it, please consult the |
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man page, in case the conversion went wrong. |
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<br><b> |
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SYNOPSIS |
SYNOPSIS |
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</b><br> |
</b><br> |
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This function matches a compiled regular expression against a given subject |
This function matches a compiled regular expression against a given subject |
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string, and returns offsets to capturing subexpressions. Its arguments are: |
string, and returns offsets to capturing subexpressions. Its arguments are: |
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<pre> |
<pre> |
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<i>code</i> Points to the compiled pattern |
<i>code</i> Points to the compiled pattern |
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<i>extra</i> Points to an associated <b>pcre_extra</b> structure, |
<i>extra</i> Points to an associated <b>pcre_extra</b> structure, |
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start matching |
start matching |
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<i>options</i> Option bits |
<i>options</i> Option bits |
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<i>ovector</i> Points to a vector of ints for result offsets |
<i>ovector</i> Points to a vector of ints for result offsets |
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<i>ovecsize</i> Size of the vector (a multiple of 3) |
<i>ovecsize</i> Number of elements in the vector (a multiple of 3) |
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</PRE> |
</pre> |
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The options are: |
The options are: |
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<pre> |
<pre> |
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PCRE_ANCHORED Match only at the first position |
PCRE_ANCHORED Match only at the first position |
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PCRE_NOTBOL Subject is not the beginning of a line |
PCRE_NOTBOL Subject is not the beginning of a line |
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PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8 |
PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8 |
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validity (only relevant if PCRE_UTF8 |
validity (only relevant if PCRE_UTF8 |
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was set at compile time) |
was set at compile time) |
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</PRE> |
PCRE_PARTIAL Return PCRE_ERROR_PARTIAL for a partial match |
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There are restrictions on what may appear in a pattern when partial matching is |
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requested. |
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A <b>pcre_extra</b> structure contains the following fields: |
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<i>flags</i> Bits indicating which fields are set |
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<i>study_data</i> Opaque data from <b>pcre_study()</b> |
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<i>match_limit</i> Limit on internal recursion |
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<i>callout_data</i> Opaque data passed back to callouts |
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<i>tables</i> Points to character tables or is NULL |
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The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT, |
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PCRE_EXTRA_CALLOUT_DATA, and PCRE_EXTRA_TABLES. |
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</P> |
</P> |
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<P> |
<P> |
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There is a complete description of the PCRE API in the |
There is a complete description of the PCRE native API in the |
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<a href="pcreapi.html"><b>pcreapi</b></a> |
<a href="pcreapi.html"><b>pcreapi</b></a> |
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page and a description of the POSIX API in the |
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<a href="pcreposix.html"><b>pcreposix</b></a> |
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page. |
page. |
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<p> |
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Return to the <a href="index.html">PCRE index page</a>. |
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</p> |
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