| <!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="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/tantivy-fst-0.4.0/src/regex/error.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>error.rs - source</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" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../tantivy_fst/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../tantivy_fst/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><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="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span>std::error; |
| <span class="kw">use </span>std::fmt; |
| |
| <span class="kw">use </span><span class="kw">super</span>::regex_syntax; |
| |
| <span class="doccomment">/// An error that occurred while compiling a regular expression. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub enum </span>Error { |
| <span class="doccomment">/// A problem with the syntax of a regular expression. |
| </span>Syntax(regex_syntax::Error), |
| <span class="doccomment">/// Too many instructions resulting from the regular expression. |
| /// |
| /// The number given is the limit that was exceeded. |
| </span>CompiledTooBig(usize), |
| <span class="doccomment">/// Too many automata states resulting from the regular expression. |
| /// |
| /// This is distinct from `CompiledTooBig` because `TooManyStates` refers |
| /// to the DFA construction where as `CompiledTooBig` refers to the NFA |
| /// construction. |
| /// |
| /// The number given is the limit that was exceeded. |
| </span>TooManyStates(usize), |
| <span class="doccomment">/// Lazy quantifiers are not allowed (because they have no useful |
| /// interpretation when used purely for automata intersection, as is the |
| /// case in this crate). |
| </span>NoLazy, |
| <span class="doccomment">/// Word boundaries are currently not allowed. |
| /// |
| /// This restriction may be lifted in the future. |
| </span>NoWordBoundary, |
| <span class="doccomment">/// Empty or "zero width assertions" such as `^` or `$` are currently |
| /// not allowed. |
| /// |
| /// This restriction may be lifted in the future. |
| </span>NoEmpty, |
| <span class="doccomment">/// Byte literals such as `(?-u:\xff)` are not allowed. |
| /// |
| /// This restriction may be lifted in the future. |
| </span>NoBytes, |
| } |
| |
| <span class="kw">impl </span>From<regex_syntax::Error> <span class="kw">for </span>Error { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(err: regex_syntax::Error) -> Error { |
| Error::Syntax(err) |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>Error { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">use </span><span class="self">self</span>::Error::<span class="kw-2">*</span>; |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Syntax(<span class="kw-2">ref </span>err) => err.fmt(f), |
| CompiledTooBig(size_limit) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"Compiled regex exceeds size limit of {} bytes"</span>, |
| size_limit |
| ), |
| TooManyStates(size_limit) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"Compiled regex exceeds size limit of {} states"</span>, |
| size_limit |
| ), |
| NoLazy => <span class="macro">write!</span>( |
| f, |
| <span class="string">"Lazy reptition operators such as '+?' are \ |
| not allowed." |
| </span>), |
| NoWordBoundary => <span class="macro">write!</span>( |
| f, |
| <span class="string">"Word boundary operators are not \ |
| allowed." |
| </span>), |
| NoEmpty => <span class="macro">write!</span>( |
| f, |
| <span class="string">"Empty match operators are not allowed \ |
| (hopefully temporary)." |
| </span>), |
| NoBytes => <span class="macro">write!</span>(f, <span class="string">"Byte literals are not allowed."</span>), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>error::Error <span class="kw">for </span>Error { |
| <span class="kw">fn </span>cause(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="kw">dyn </span>error::Error> { |
| <span class="kw">use </span><span class="self">self</span>::Error::<span class="kw-2">*</span>; |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Syntax(<span class="kw-2">ref </span>err) => <span class="prelude-val">Some</span>(err), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="tantivy_fst" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
