165 lines
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HTML
165 lines
11 KiB
HTML
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<meta name="description" content="API documentation for the Rust `RegexBuilder` struct in crate `regex`.">
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<meta name="keywords" content="rust, rustlang, rust-lang, RegexBuilder">
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<title>regex::bytes::RegexBuilder - Rust</title>
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<a href='../../regex/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a>
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<p class='location'>Struct RegexBuilder</p><div class="block items"><ul><li><a href="#methods">Methods</a></li></ul></div><p class='location'><a href='../index.html'>regex</a>::<wbr><a href='index.html'>bytes</a></p><script>window.sidebarCurrent = {name: 'RegexBuilder', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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autocomplete="off"
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placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
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type="search">
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<section id='main' class="content">
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<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>regex</a>::<wbr><a href='index.html'>bytes</a>::<wbr><a class="struct" href=''>RegexBuilder</a></span><span class='out-of-band'><span id='render-detail'>
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<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../../src/regex/re_builder.rs.html#55' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct RegexBuilder(_);</pre><div class='docblock'><p>A configurable builder for a regular expression.</p>
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<p>A builder can be used to configure how the regex is built, for example, by
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setting the default flags (which can be overridden in the expression
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itself) or setting various limits.</p>
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</div><h2 id='methods'>Methods</h2><h3 class='impl'><span class='in-band'><code>impl <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/regex/re_builder.rs.html#57-148' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>fn <a href='#method.new' class='fnname'>new</a>(pattern: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Create a new regular expression builder with the given pattern.</p>
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<p>If the pattern is invalid, then an error will be returned when
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<code>compile</code> is called.</p>
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</div><h4 id='method.compile' class="method"><span id='compile.v' class='invisible'><code>fn <a href='#method.compile' class='fnname'>compile</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="../../regex/bytes/struct.Regex.html" title="struct regex::bytes::Regex">Regex</a>, <a class="enum" href="../../regex/enum.Error.html" title="enum regex::Error">Error</a>></code></span></h4>
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<div class='docblock'><p>Consume the builder and compile the regular expression.</p>
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<p>Note that calling <code>as_str</code> on the resulting <code>Regex</code> will produce the
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pattern given to <code>new</code> verbatim. Notably, it will not incorporate any
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of the flags set on this builder.</p>
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</div><h4 id='method.case_insensitive' class="method"><span id='case_insensitive.v' class='invisible'><code>fn <a href='#method.case_insensitive' class='fnname'>case_insensitive</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the case insensitive (<code>i</code>) flag.</p>
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</div><h4 id='method.multi_line' class="method"><span id='multi_line.v' class='invisible'><code>fn <a href='#method.multi_line' class='fnname'>multi_line</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the multi-line matching (<code>m</code>) flag.</p>
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</div><h4 id='method.dot_matches_new_line' class="method"><span id='dot_matches_new_line.v' class='invisible'><code>fn <a href='#method.dot_matches_new_line' class='fnname'>dot_matches_new_line</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the any character (<code>s</code>) flag, where in <code>.</code> matches
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anything when <code>s</code> is set and matches anything except for new line when
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it is not set (the default).</p>
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<p>N.B. "matches anything" means "any byte" for <code>regex::bytes::Regex</code>
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expressions and means "any Unicode codepoint" for <code>regex::Regex</code>
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expressions.</p>
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</div><h4 id='method.swap_greed' class="method"><span id='swap_greed.v' class='invisible'><code>fn <a href='#method.swap_greed' class='fnname'>swap_greed</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the greedy swap (<code>U</code>) flag.</p>
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</div><h4 id='method.ignore_whitespace' class="method"><span id='ignore_whitespace.v' class='invisible'><code>fn <a href='#method.ignore_whitespace' class='fnname'>ignore_whitespace</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the ignore whitespace (<code>x</code>) flag.</p>
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</div><h4 id='method.unicode' class="method"><span id='unicode.v' class='invisible'><code>fn <a href='#method.unicode' class='fnname'>unicode</a>(self, yes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the value for the Unicode (<code>u</code>) flag.</p>
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<p>For byte based regular expressions, this is disabled by default.</p>
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</div><h4 id='method.size_limit' class="method"><span id='size_limit.v' class='invisible'><code>fn <a href='#method.size_limit' class='fnname'>size_limit</a>(self, limit: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the approximate size limit of the compiled regular expression.</p>
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<p>This roughly corresponds to the number of bytes occupied by a single
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compiled program. If the program exceeds this number, then a
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compilation error is returned.</p>
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</div><h4 id='method.dfa_size_limit' class="method"><span id='dfa_size_limit.v' class='invisible'><code>fn <a href='#method.dfa_size_limit' class='fnname'>dfa_size_limit</a>(self, limit: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../regex/bytes/struct.RegexBuilder.html" title="struct regex::bytes::RegexBuilder">RegexBuilder</a></code></span></h4>
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<div class='docblock'><p>Set the approximate size of the cache used by the DFA.</p>
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<p>This roughly corresponds to the number of bytes that the DFA will
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use while searching.</p>
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<p>Note that this is a <em>per thread</em> limit. There is no way to set a global
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limit. In particular, if a regex is used from multiple threads
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simulanteously, then each thread may use up to the number of bytes
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specified here.</p>
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</div></div></section>
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<h1 class="hidden">Help</h1>
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Accepted types are: <code>fn</code>, <code>mod</code>,
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and <code>const</code>.
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Search functions by type signature (e.g.
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