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58 lines
2.0 KiB
HTML
58 lines
2.0 KiB
HTML
<html>
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<head>
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<title>pcre2_set_optimize specification</title>
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</head>
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
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<h1>pcre2_set_optimize man page</h1>
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<p>
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Return to the <a href="index.html">PCRE2 index page</a>.
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</p>
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<p>
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This page is part of the PCRE2 HTML documentation. It was generated
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automatically from the original man page. If there is any nonsense in it,
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please consult the man page, in case the conversion went wrong.
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<br>
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<br><b>
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SYNOPSIS
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</b><br>
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<P>
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<b>#include <pcre2.h></b>
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</P>
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<P>
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<b>int pcre2_set_optimize(pcre2_compile_context *<i>ccontext</i>,</b>
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<b> uint32_t <i>directive</i>);</b>
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</P>
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<br><b>
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DESCRIPTION
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</b><br>
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<P>
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This function controls which performance optimizations will be applied
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by <b>pcre2_compile()</b>. It can be called multiple times with the same compile
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context; the effects are cumulative, with the effects of later calls taking
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precedence over earlier ones.
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</P>
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<P>
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The result is zero for success, PCRE2_ERROR_NULL if <i>ccontext</i> is NULL,
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or PCRE2_ERROR_BADOPTION if <i>directive</i> is unknown. The latter could be
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useful to detect if a certain optimization is available.
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</P>
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<P>
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The list of possible values for the <i>directive</i> parameter are:
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<pre>
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PCRE2_OPTIMIZATION_FULL Enable all optimizations (default)
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PCRE2_OPTIMIZATION_NONE Disable all optimizations
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PCRE2_AUTO_POSSESS Enable auto-possessification
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PCRE2_AUTO_POSSESS_OFF Disable auto-possessification
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PCRE2_DOTSTAR_ANCHOR Enable implicit dotstar anchoring
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PCRE2_DOTSTAR_ANCHOR_OFF Disable implicit dotstar anchoring
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PCRE2_START_OPTIMIZE Enable start-up optimizations at match time
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PCRE2_START_OPTIMIZE_OFF Disable start-up optimizations at match time
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</pre>
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There is a complete description of the PCRE2 native API, including detailed
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descriptions <i>directive</i> parameter values in the
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<a href="pcre2api.html"><b>pcre2api</b></a>
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page.
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<p>
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Return to the <a href="index.html">PCRE2 index page</a>.
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</p>
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