| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A builder for a regular expression parser."><meta name="keywords" content="rust, rustlang, rust-lang, ParserBuilder"><title>ParserBuilder in regex_syntax - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" 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class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../regex_syntax/index.html"><div class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">ParserBuilder</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.build">build</a></li><li><a href="#method.case_insensitive">case_insensitive</a></li><li><a href="#method.crlf">crlf</a></li><li><a href="#method.dot_matches_new_line">dot_matches_new_line</a></li><li><a href="#method.ignore_whitespace">ignore_whitespace</a></li><li><a href="#method.multi_line">multi_line</a></li><li><a href="#method.nest_limit">nest_limit</a></li><li><a href="#method.new">new</a></li><li><a href="#method.octal">octal</a></li><li><a href="#method.swap_greed">swap_greed</a></li><li><a href="#method.unicode">unicode</a></li><li><a href="#method.utf8">utf8</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Clone-for-ParserBuilder">Clone</a></li><li><a href="#impl-Debug-for-ParserBuilder">Debug</a></li><li><a href="#impl-Default-for-ParserBuilder">Default</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-ParserBuilder">RefUnwindSafe</a></li><li><a href="#impl-Send-for-ParserBuilder">Send</a></li><li><a href="#impl-Sync-for-ParserBuilder">Sync</a></li><li><a href="#impl-Unpin-for-ParserBuilder">Unpin</a></li><li><a href="#impl-UnwindSafe-for-ParserBuilder">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-ParserBuilder">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-ParserBuilder">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-ParserBuilder">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-ParserBuilder">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-ParserBuilder">Into<U></a></li><li><a href="#impl-ToOwned-for-ParserBuilder">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-ParserBuilder">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-ParserBuilder">TryInto<U></a></li></ul></section><h2><a href="index.html">In regex_syntax</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="index.html">regex_syntax</a>::<wbr><a class="struct" href="#">ParserBuilder</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../src/regex_syntax/parser.rs.html#25-28">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct ParserBuilder { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A builder for a regular expression parser.</p> |
| <p>This builder permits modifying configuration options for the parser.</p> |
| <p>This type combines the builder options for both the <a href="ast/parse/struct.ParserBuilder.html">AST |
| <code>ParserBuilder</code></a> and the <a href="hir/translate/struct.TranslatorBuilder.html">HIR |
| <code>TranslatorBuilder</code></a>.</p> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-ParserBuilder" class="impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#30-189">source</a><a href="#impl-ParserBuilder" class="anchor"></a><h3 class="code-header">impl <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.new" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#32-34">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a>() -> <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Create a new parser builder with a default configuration.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.build" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#37-39">source</a><h4 class="code-header">pub fn <a href="#method.build" class="fnname">build</a>(&self) -> <a class="struct" href="struct.Parser.html" title="struct regex_syntax::Parser">Parser</a></h4></section></summary><div class="docblock"><p>Build a parser from this configuration with the given pattern.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.nest_limit" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#66-69">source</a><h4 class="code-header">pub fn <a href="#method.nest_limit" class="fnname">nest_limit</a>(&mut self, limit: u32) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Set the nesting limit for this parser.</p> |
| <p>The nesting limit controls how deep the abstract syntax tree is allowed |
| to be. If the AST exceeds the given limit (e.g., with too many nested |
| groups), then an error is returned by the parser.</p> |
| <p>The purpose of this limit is to act as a heuristic to prevent stack |
| overflow for consumers that do structural induction on an <code>Ast</code> using |
| explicit recursion. While this crate never does this (instead using |
| constant stack space and moving the call stack to the heap), other |
| crates may.</p> |
| <p>This limit is not checked until the entire Ast is parsed. Therefore, |
| if callers want to put a limit on the amount of heap space used, then |
| they should impose a limit on the length, in bytes, of the concrete |
| pattern string. In particular, this is viable since this parser |
| implementation will limit itself to heap space proportional to the |
| length of the pattern string.</p> |
| <p>Note that a nest limit of <code>0</code> will return a nest limit error for most |
| patterns but not all. For example, a nest limit of <code>0</code> permits <code>a</code> but |
| not <code>ab</code>, since <code>ab</code> requires a concatenation, which results in a nest |
| depth of <code>1</code>. In general, a nest limit is not something that manifests |
| in an obvious way in the concrete syntax, therefore, it should not be |
| used in a granular way.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.octal" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#86-89">source</a><h4 class="code-header">pub fn <a href="#method.octal" class="fnname">octal</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Whether to support octal syntax or not.</p> |
| <p>Octal syntax is a little-known way of uttering Unicode codepoints in |
| a regular expression. For example, <code>a</code>, <code>\x61</code>, <code>\u0061</code> and |
| <code>\141</code> are all equivalent regular expressions, where the last example |
| shows octal syntax.</p> |
| <p>While supporting octal syntax isn’t in and of itself a problem, it does |
| make good error messages harder. That is, in PCRE based regex engines, |
| syntax like <code>\0</code> invokes a backreference, which is explicitly |
| unsupported in Rust’s regex engine. However, many users expect it to |
| be supported. Therefore, when octal support is disabled, the error |
| message will explicitly mention that backreferences aren’t supported.</p> |
| <p>Octal syntax is disabled by default.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.utf8" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#106-109">source</a><h4 class="code-header">pub fn <a href="#method.utf8" class="fnname">utf8</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>When disabled, translation will permit the construction of a regular |
| expression that may match invalid UTF-8.</p> |
| <p>When enabled (the default), the translator is guaranteed to produce an |
| expression that, for non-empty matches, will only ever produce spans |
| that are entirely valid UTF-8 (otherwise, the translator will return an |
| error).</p> |
| <p>Perhaps surprisingly, when UTF-8 is enabled, an empty regex or even |
| a negated ASCII word boundary (uttered as <code>(?-u:\B)</code> in the concrete |
| syntax) will be allowed even though they can produce matches that split |
| a UTF-8 encoded codepoint. This only applies to zero-width or “empty” |
| matches, and it is expected that the regex engine itself must handle |
| these cases if necessary (perhaps by suppressing any zero-width matches |
| that split a codepoint).</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ignore_whitespace" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#119-122">source</a><h4 class="code-header">pub fn <a href="#method.ignore_whitespace" class="fnname">ignore_whitespace</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable verbose mode in the regular expression.</p> |
| <p>When enabled, verbose mode permits insignificant whitespace in many |
| places in the regular expression, as well as comments. Comments are |
| started using <code>#</code> and continue until the end of the line.</p> |
| <p>By default, this is disabled. It may be selectively enabled in the |
| regular expression by using the <code>x</code> flag regardless of this setting.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.case_insensitive" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#128-131">source</a><h4 class="code-header">pub fn <a href="#method.case_insensitive" class="fnname">case_insensitive</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the case insensitive flag by default.</p> |
| <p>By default this is disabled. It may alternatively be selectively |
| enabled in the regular expression itself via the <code>i</code> flag.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.multi_line" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#137-140">source</a><h4 class="code-header">pub fn <a href="#method.multi_line" class="fnname">multi_line</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the multi-line matching flag by default.</p> |
| <p>By default this is disabled. It may alternatively be selectively |
| enabled in the regular expression itself via the <code>m</code> flag.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.dot_matches_new_line" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#146-149">source</a><h4 class="code-header">pub fn <a href="#method.dot_matches_new_line" class="fnname">dot_matches_new_line</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the “dot matches any character” flag by default.</p> |
| <p>By default this is disabled. It may alternatively be selectively |
| enabled in the regular expression itself via the <code>s</code> flag.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.crlf" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#163-166">source</a><h4 class="code-header">pub fn <a href="#method.crlf" class="fnname">crlf</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the CRLF mode flag by default.</p> |
| <p>By default this is disabled. It may alternatively be selectively |
| enabled in the regular expression itself via the <code>R</code> flag.</p> |
| <p>When CRLF mode is enabled, the following happens:</p> |
| <ul> |
| <li>Unless <code>dot_matches_new_line</code> is enabled, <code>.</code> will match any character |
| except for <code>\r</code> and <code>\n</code>.</li> |
| <li>When <code>multi_line</code> mode is enabled, <code>^</code> and <code>$</code> will treat <code>\r\n</code>, |
| <code>\r</code> and <code>\n</code> as line terminators. And in particular, neither will |
| match between a <code>\r</code> and a <code>\n</code>.</li> |
| </ul> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.swap_greed" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#172-175">source</a><h4 class="code-header">pub fn <a href="#method.swap_greed" class="fnname">swap_greed</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the “swap greed” flag by default.</p> |
| <p>By default this is disabled. It may alternatively be selectively |
| enabled in the regular expression itself via the <code>U</code> flag.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.unicode" class="method has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#185-188">source</a><h4 class="code-header">pub fn <a href="#method.unicode" class="fnname">unicode</a>(&mut self, yes: bool) -> &mut <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class="docblock"><p>Enable or disable the Unicode flag (<code>u</code>) by default.</p> |
| <p>By default this is <strong>enabled</strong>. It may alternatively be selectively |
| disabled in the regular expression itself via the <code>u</code> flag.</p> |
| <p>Note that unless <code>utf8</code> is disabled (it’s enabled by default), a |
| regular expression will fail to parse if Unicode mode is disabled and a |
| sub-expression could possibly match invalid UTF-8.</p> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-ParserBuilder" class="impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#impl-Clone-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Clone for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone</a>(&self) -> <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">clone_from</a>(&mut self, source: &Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-ParserBuilder" class="impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#impl-Debug-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Debug for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Default-for-ParserBuilder" class="impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#impl-Default-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Default for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.default" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex_syntax/parser.rs.html#24">source</a><a href="#method.default" class="anchor"></a><h4 class="code-header">fn <a class="fnname">default</a>() -> <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h4></section></summary><div class='docblock'>Returns the “default value” for a type. <a>Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-ParserBuilder" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl RefUnwindSafe for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section><section id="impl-Send-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Send-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Send for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section><section id="impl-Sync-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Sync-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Sync for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section><section id="impl-Unpin-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Unpin-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl Unpin for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section><section id="impl-UnwindSafe-for-ParserBuilder" class="impl has-srclink"><a href="#impl-UnwindSafe-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl UnwindSafe for <a class="struct" href="struct.ParserBuilder.html" title="struct regex_syntax::ParserBuilder">ParserBuilder</a></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Any-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-ParserBuilder" class="impl has-srclink"><a href="#impl-ToOwned-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T> ToOwned for T<span class="where fmt-newline">where<br> T: Clone,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone_into</a>(&self, target: &mut T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-ParserBuilder" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-ParserBuilder" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="regex_syntax" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
