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<p class='location'>Struct Literals</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.empty">empty</a><a href="#method.prefixes">prefixes</a><a href="#method.suffixes">suffixes</a><a href="#method.limit_size">limit_size</a><a href="#method.set_limit_size">set_limit_size</a><a href="#method.limit_class">limit_class</a><a href="#method.set_limit_class">set_limit_class</a><a href="#method.literals">literals</a><a href="#method.min_len">min_len</a><a href="#method.all_complete">all_complete</a><a href="#method.any_complete">any_complete</a><a href="#method.contains_empty">contains_empty</a><a href="#method.is_empty">is_empty</a><a href="#method.to_empty">to_empty</a><a href="#method.longest_common_prefix">longest_common_prefix</a><a href="#method.longest_common_suffix">longest_common_suffix</a><a href="#method.trim_suffix">trim_suffix</a><a href="#method.unambiguous_prefixes">unambiguous_prefixes</a><a href="#method.unambiguous_suffixes">unambiguous_suffixes</a><a href="#method.union_prefixes">union_prefixes</a><a href="#method.union_suffixes">union_suffixes</a><a href="#method.union">union</a><a href="#method.cross_product">cross_product</a><a href="#method.cross_add">cross_add</a><a href="#method.add">add</a><a href="#method.add_char_class">add_char_class</a><a href="#method.add_byte_class">add_byte_class</a><a href="#method.cut">cut</a><a href="#method.reverse">reverse</a><a href="#method.clear">clear</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Eq">Eq</a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Debug">Debug</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div></div><p class='location'><a href='../../index.html'>regex_syntax</a>::<wbr><a href='../index.html'>hir</a>::<wbr><a href='index.html'>literal</a></p><script>window.sidebarCurrent = {name: 'Literals', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<section id='main' class="content"><h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>regex_syntax</a>::<wbr><a href='../index.html'>hir</a>::<wbr><a href='index.html'>literal</a>::<wbr><a class="struct" href=''>Literals</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#45-49' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'>pub struct Literals { /* fields omitted */ }</pre></div><div class='docblock'><p>A set of literal byte strings extracted from a regular expression.</p>
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<p>Every member of the set is a <code>Literal</code>, which is represented by a
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<code>Vec<u8></code>. (Notably, it may contain invalid UTF-8.) Every member is
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said to be either <em>complete</em> or <em>cut</em>. A complete literal means that
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it extends until the beginning (or end) of the regular expression. In
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some circumstances, this can be used to indicate a match in the regular
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expression.</p>
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<p>A key aspect of literal extraction is knowing when to stop. It is not
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feasible to blindly extract all literals from a regular expression, even if
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there are finitely many. For example, the regular expression <code>[0-9]{10}</code>
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has <code>10^10</code> distinct literals. For this reason, literal extraction is
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bounded to some low number by default using heuristics, but the limits can
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be tweaked.</p>
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<p><strong>WARNING</strong>: Literal extraction uses stack space proportional to the size
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of the <code>Hir</code> expression. At some point, this drawback will be eliminated.
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To protect yourself, set a reasonable
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<a href="../../struct.ParserBuilder.html#method.nest_limit"><code>nest_limit</code> on your <code>Parser</code></a>.
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This is done for you by default.</p>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code><a href='#impl' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#61-600' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.empty' class="method"><span id='empty.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.empty' class='fnname'>empty</a>() -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#63-69' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a new empty set of literals using default limits.</p>
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</div><h4 id='method.prefixes' class="method"><span id='prefixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.prefixes' class='fnname'>prefixes</a>(expr: &<a class="struct" href="../../../regex_syntax/hir/struct.Hir.html" title="struct regex_syntax::hir::Hir">Hir</a>) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#72-76' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a set of literal prefixes extracted from the given <code>Hir</code>.</p>
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</div><h4 id='method.suffixes' class="method"><span id='suffixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.suffixes' class='fnname'>suffixes</a>(expr: &<a class="struct" href="../../../regex_syntax/hir/struct.Hir.html" title="struct regex_syntax::hir::Hir">Hir</a>) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#79-83' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a set of literal suffixes extracted from the given <code>Hir</code>.</p>
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</div><h4 id='method.limit_size' class="method"><span id='limit_size.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.limit_size' class='fnname'>limit_size</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#86-88' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Get the approximate size limit (in bytes) of this set.</p>
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</div><h4 id='method.set_limit_size' class="method"><span id='set_limit_size.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.set_limit_size' class='fnname'>set_limit_size</a>(&mut self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> &mut <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#97-100' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Set the approximate size limit (in bytes) of this set.</p>
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<p>If extracting a literal would put the set over this limit, then
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extraction stops.</p>
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<p>The new limits will only apply to additions to this set. Existing
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members remain unchanged, even if the set exceeds the new limit.</p>
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</div><h4 id='method.limit_class' class="method"><span id='limit_class.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.limit_class' class='fnname'>limit_class</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#103-105' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Get the character class size limit for this set.</p>
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</div><h4 id='method.set_limit_class' class="method"><span id='set_limit_class.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.set_limit_class' class='fnname'>set_limit_class</a>(&mut self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> &mut <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#117-120' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Limits the size of character(or byte) classes considered.</p>
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<p>A value of <code>0</code> prevents all character classes from being considered.</p>
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<p>This limit also applies to case insensitive literals, since each
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character in the case insensitive literal is converted to a class, and
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then case folded.</p>
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<p>The new limits will only apply to additions to this set. Existing
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members remain unchanged, even if the set exceeds the new limit.</p>
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</div><h4 id='method.literals' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></h3><code class="content"><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></code></div></div><span id='literals.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.literals' class='fnname'>literals</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="struct" href="../../../regex_syntax/hir/literal/struct.Literal.html" title="struct regex_syntax::hir::literal::Literal">Literal</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#123-125' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns the set of literals as a slice. Its order is unspecified.</p>
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</div><h4 id='method.min_len' class="method"><span id='min_len.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.min_len' class='fnname'>min_len</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#130-140' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns the length of the smallest literal.</p>
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<p>Returns None is there are no literals in the set.</p>
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</div><h4 id='method.all_complete' class="method"><span id='all_complete.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.all_complete' class='fnname'>all_complete</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#143-145' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns true if all members in this set are complete.</p>
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</div><h4 id='method.any_complete' class="method"><span id='any_complete.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.any_complete' class='fnname'>any_complete</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#148-150' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns true if any member in this set is complete.</p>
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</div><h4 id='method.contains_empty' class="method"><span id='contains_empty.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.contains_empty' class='fnname'>contains_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#153-155' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns true if this set contains an empty literal.</p>
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</div><h4 id='method.is_empty' class="method"><span id='is_empty.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#158-160' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns true if this set is empty or if all of its members is empty.</p>
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</div><h4 id='method.to_empty' class="method"><span id='to_empty.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.to_empty' class='fnname'>to_empty</a>(&self) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#163-168' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a new empty set of literals using this set's limits.</p>
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</div><h4 id='method.longest_common_prefix' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></h3><code class="content"><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></code></div></div><span id='longest_common_prefix.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.longest_common_prefix' class='fnname'>longest_common_prefix</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#171-186' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns the longest common prefix of all members in this set.</p>
|
|||
|
|
</div><h4 id='method.longest_common_suffix' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></h3><code class="content"><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span><span class="where fmt-newline">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'a mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></span></code></div></div><span id='longest_common_suffix.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.longest_common_suffix' class='fnname'>longest_common_suffix</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#189-205' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns the longest common suffix of all members in this set.</p>
|
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|
|
</div><h4 id='method.trim_suffix' class="method"><span id='trim_suffix.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.trim_suffix' class='fnname'>trim_suffix</a>(&self, num_bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#215-229' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a new set of literals with the given number of bytes trimmed
|
|||
|
|
from the suffix of each literal.</p>
|
|||
|
|
<p>If any literal would be cut out completely by trimming, then None is
|
|||
|
|
returned.</p>
|
|||
|
|
<p>Any duplicates that are created as a result of this transformation are
|
|||
|
|
removed.</p>
|
|||
|
|
</div><h4 id='method.unambiguous_prefixes' class="method"><span id='unambiguous_prefixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.unambiguous_prefixes' class='fnname'>unambiguous_prefixes</a>(&self) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#240-297' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a new set of prefixes of this set of literals that are
|
|||
|
|
guaranteed to be unambiguous.</p>
|
|||
|
|
<p>Any substring match with a member of the set is returned is guaranteed
|
|||
|
|
to never overlap with a substring match of another member of the set
|
|||
|
|
at the same starting position.</p>
|
|||
|
|
<p>Given any two members of the returned set, neither is a substring of
|
|||
|
|
the other.</p>
|
|||
|
|
</div><h4 id='method.unambiguous_suffixes' class="method"><span id='unambiguous_suffixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.unambiguous_suffixes' class='fnname'>unambiguous_suffixes</a>(&self) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#308-315' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a new set of suffixes of this set of literals that are
|
|||
|
|
guaranteed to be unambiguous.</p>
|
|||
|
|
<p>Any substring match with a member of the set is returned is guaranteed
|
|||
|
|
to never overlap with a substring match of another member of the set
|
|||
|
|
at the same ending position.</p>
|
|||
|
|
<p>Given any two members of the returned set, neither is a substring of
|
|||
|
|
the other.</p>
|
|||
|
|
</div><h4 id='method.union_prefixes' class="method"><span id='union_prefixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.union_prefixes' class='fnname'>union_prefixes</a>(&mut self, expr: &<a class="struct" href="../../../regex_syntax/hir/struct.Hir.html" title="struct regex_syntax::hir::Hir">Hir</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#326-330' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Unions the prefixes from the given expression to this set.</p>
|
|||
|
|
<p>If prefixes could not be added (for example, this set would exceed its
|
|||
|
|
size limits or the set of prefixes from <code>expr</code> includes the empty
|
|||
|
|
string), then false is returned.</p>
|
|||
|
|
<p>Note that prefix literals extracted from <code>expr</code> are said to be complete
|
|||
|
|
if and only if the literal extends from the beginning of <code>expr</code> to the
|
|||
|
|
end of <code>expr</code>.</p>
|
|||
|
|
</div><h4 id='method.union_suffixes' class="method"><span id='union_suffixes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.union_suffixes' class='fnname'>union_suffixes</a>(&mut self, expr: &<a class="struct" href="../../../regex_syntax/hir/struct.Hir.html" title="struct regex_syntax::hir::Hir">Hir</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#341-346' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Unions the suffixes from the given expression to this set.</p>
|
|||
|
|
<p>If suffixes could not be added (for example, this set would exceed its
|
|||
|
|
size limits or the set of suffixes from <code>expr</code> includes the empty
|
|||
|
|
string), then false is returned.</p>
|
|||
|
|
<p>Note that prefix literals extracted from <code>expr</code> are said to be complete
|
|||
|
|
if and only if the literal extends from the end of <code>expr</code> to the
|
|||
|
|
beginning of <code>expr</code>.</p>
|
|||
|
|
</div><h4 id='method.union' class="method"><span id='union.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.union' class='fnname'>union</a>(&mut self, lits: <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#353-363' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Unions this set with another set.</p>
|
|||
|
|
<p>If the union would cause the set to exceed its limits, then the union
|
|||
|
|
is skipped and it returns false. Otherwise, if the union succeeds, it
|
|||
|
|
returns true.</p>
|
|||
|
|
</div><h4 id='method.cross_product' class="method"><span id='cross_product.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.cross_product' class='fnname'>cross_product</a>(&mut self, lits: &<a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#372-411' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Extends this set with another set.</p>
|
|||
|
|
<p>The set of literals is extended via a cross product.</p>
|
|||
|
|
<p>If a cross product would cause this set to exceed its limits, then the
|
|||
|
|
cross product is skipped and it returns false. Otherwise, if the cross
|
|||
|
|
product succeeds, it returns true.</p>
|
|||
|
|
</div><h4 id='method.cross_add' class="method"><span id='cross_add.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.cross_add' class='fnname'>cross_add</a>(&mut self, bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#421-452' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Extends each literal in this set with the bytes given.</p>
|
|||
|
|
<p>If the set is empty, then the given literal is added to the set.</p>
|
|||
|
|
<p>If adding any number of bytes to all members of this set causes a limit
|
|||
|
|
to be exceeded, then no bytes are added and false is returned. If a
|
|||
|
|
prefix of <code>bytes</code> can be fit into this set, then it is used and all
|
|||
|
|
resulting literals are cut.</p>
|
|||
|
|
</div><h4 id='method.add' class="method"><span id='add.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.add' class='fnname'>add</a>(&mut self, lit: <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literal.html" title="struct regex_syntax::hir::literal::Literal">Literal</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#458-464' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Adds the given literal to this set.</p>
|
|||
|
|
<p>Returns false if adding this literal would cause the class to be too
|
|||
|
|
big.</p>
|
|||
|
|
</div><h4 id='method.add_char_class' class="method"><span id='add_char_class.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.add_char_class' class='fnname'>add_char_class</a>(&mut self, cls: &<a class="struct" href="../../../regex_syntax/hir/struct.ClassUnicode.html" title="struct regex_syntax::hir::ClassUnicode">ClassUnicode</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#469-471' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Extends each literal in this set with the character class given.</p>
|
|||
|
|
<p>Returns false if the character class was too big to add.</p>
|
|||
|
|
</div><h4 id='method.add_byte_class' class="method"><span id='add_byte_class.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.add_byte_class' class='fnname'>add_byte_class</a>(&mut self, cls: &<a class="struct" href="../../../regex_syntax/hir/struct.ClassBytes.html" title="struct regex_syntax::hir::ClassBytes">ClassBytes</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#514-532' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Extends each literal in this set with the byte class given.</p>
|
|||
|
|
<p>Returns false if the byte class was too big to add.</p>
|
|||
|
|
</div><h4 id='method.cut' class="method"><span id='cut.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.cut' class='fnname'>cut</a>(&mut self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#536-540' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Cuts every member of this set. When a member is cut, it can never
|
|||
|
|
be extended.</p>
|
|||
|
|
</div><h4 id='method.reverse' class="method"><span id='reverse.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.reverse' class='fnname'>reverse</a>(&mut self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#543-547' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Reverses all members in place.</p>
|
|||
|
|
</div><h4 id='method.clear' class="method"><span id='clear.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.clear' class='fnname'>clear</a>(&mut self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#550-552' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Clears this set of all members.</p>
|
|||
|
|
</div></div>
|
|||
|
|
<h2 id='implementations' class='small-section-header'>
|
|||
|
|
Trait Implementations<a href='#implementations' class='anchor'></a>
|
|||
|
|
</h2>
|
|||
|
|
<div id='implementations-list'>
|
|||
|
|
<h3 id='impl-Clone' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code><a href='#impl-Clone' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
|||
|
|
</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#117-119' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
|||
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</div></div><h3 id='impl-Eq' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code><a href='#impl-Eq' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-PartialEq' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code><a href='#impl-PartialEq' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, __arg_0: &<a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
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</div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, __arg_0: &<a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#44' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>This method tests for <code>!=</code>.</p>
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</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../../regex_syntax/hir/literal/struct.Literals.html" title="struct regex_syntax::hir::literal::Literals">Literals</a></code><a href='#impl-Debug' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#869-877' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/regex_syntax/hir/literal/mod.rs.html#870-876' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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