| <!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/url-2.3.1/src/parser.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>parser.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="../../url/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="../../url/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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| <span id="1589">1589</span> |
| <span id="1590">1590</span> |
| <span id="1591">1591</span> |
| <span id="1592">1592</span> |
| <span id="1593">1593</span> |
| </pre><pre class="rust"><code><span class="comment">// Copyright 2013-2016 The rust-url developers. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| </span><span class="kw">use </span>std::error::Error; |
| <span class="kw">use </span>std::fmt::{<span class="self">self</span>, Formatter, Write}; |
| <span class="kw">use </span>std::str; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::host::{Host, HostInternal}; |
| <span class="kw">use </span><span class="kw">crate</span>::Url; |
| <span class="kw">use </span>form_urlencoded::EncodingOverride; |
| <span class="kw">use </span>percent_encoding::{percent_encode, utf8_percent_encode, AsciiSet, CONTROLS}; |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#fragment-percent-encode-set |
| </span><span class="kw">const </span>FRAGMENT: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>CONTROLS.add(<span class="string">b' '</span>).add(<span class="string">b'"'</span>).add(<span class="string">b'<'</span>).add(<span class="string">b'>'</span>).add(<span class="string">b'`'</span>); |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#path-percent-encode-set |
| </span><span class="kw">const </span>PATH: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>FRAGMENT.add(<span class="string">b'#'</span>).add(<span class="string">b'?'</span>).add(<span class="string">b'{'</span>).add(<span class="string">b'}'</span>); |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#userinfo-percent-encode-set |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const </span>USERINFO: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>PATH |
| .add(<span class="string">b'/'</span>) |
| .add(<span class="string">b':'</span>) |
| .add(<span class="string">b';'</span>) |
| .add(<span class="string">b'='</span>) |
| .add(<span class="string">b'@'</span>) |
| .add(<span class="string">b'['</span>) |
| .add(<span class="string">b'\\'</span>) |
| .add(<span class="string">b']'</span>) |
| .add(<span class="string">b'^'</span>) |
| .add(<span class="string">b'|'</span>); |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const </span>PATH_SEGMENT: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>PATH.add(<span class="string">b'/'</span>).add(<span class="string">b'%'</span>); |
| |
| <span class="comment">// The backslash (\) character is treated as a path separator in special URLs |
| // so it needs to be additionally escaped in that case. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const </span>SPECIAL_PATH_SEGMENT: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>PATH_SEGMENT.add(<span class="string">b'\\'</span>); |
| |
| <span class="comment">// https://url.spec.whatwg.org/#query-state |
| </span><span class="kw">const </span>QUERY: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>CONTROLS.add(<span class="string">b' '</span>).add(<span class="string">b'"'</span>).add(<span class="string">b'#'</span>).add(<span class="string">b'<'</span>).add(<span class="string">b'>'</span>); |
| <span class="kw">const </span>SPECIAL_QUERY: <span class="kw-2">&</span>AsciiSet = <span class="kw-2">&</span>QUERY.add(<span class="string">b'\''</span>); |
| |
| <span class="kw">pub type </span>ParseResult<T> = <span class="prelude-ty">Result</span><T, ParseError>; |
| |
| <span class="macro">macro_rules! </span>simple_enum_error { |
| ($(<span class="macro-nonterminal">$name</span>: ident => <span class="macro-nonterminal">$description</span>: expr,)+) => { |
| <span class="doccomment">/// Errors that can occur during parsing. |
| /// |
| /// This may be extended in the future so exhaustive matching is |
| /// discouraged with an unused variant. |
| </span><span class="attribute">#[derive(PartialEq, Eq, Clone, Copy, Debug)] |
| #[non_exhaustive] |
| </span><span class="kw">pub enum </span>ParseError { |
| $( |
| <span class="macro-nonterminal">$name</span>, |
| )+ |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>ParseError { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, fmt: <span class="kw-2">&mut </span>Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| $( |
| ParseError::<span class="macro-nonterminal">$name </span>=> fmt.write_str(<span class="macro-nonterminal">$description</span>), |
| )+ |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Error <span class="kw">for </span>ParseError {} |
| |
| <span class="macro">simple_enum_error! </span>{ |
| EmptyHost => <span class="string">"empty host"</span>, |
| IdnaError => <span class="string">"invalid international domain name"</span>, |
| InvalidPort => <span class="string">"invalid port number"</span>, |
| InvalidIpv4Address => <span class="string">"invalid IPv4 address"</span>, |
| InvalidIpv6Address => <span class="string">"invalid IPv6 address"</span>, |
| InvalidDomainCharacter => <span class="string">"invalid domain character"</span>, |
| RelativeUrlWithoutBase => <span class="string">"relative URL without a base"</span>, |
| RelativeUrlWithCannotBeABaseBase => <span class="string">"relative URL with a cannot-be-a-base base"</span>, |
| SetHostOnCannotBeABaseUrl => <span class="string">"a cannot-be-a-base URL doesn’t have a host to set"</span>, |
| Overflow => <span class="string">"URLs more than 4 GB are not supported"</span>, |
| } |
| |
| <span class="kw">impl </span>From<::idna::Errors> <span class="kw">for </span>ParseError { |
| <span class="kw">fn </span>from(<span class="kw">_</span>: ::idna::Errors) -> ParseError { |
| ParseError::IdnaError |
| } |
| } |
| |
| <span class="macro">macro_rules! </span>syntax_violation_enum { |
| ($(<span class="macro-nonterminal">$name</span>: ident => <span class="macro-nonterminal">$description</span>: expr,)+) => { |
| <span class="doccomment">/// Non-fatal syntax violations that can occur during parsing. |
| /// |
| /// This may be extended in the future so exhaustive matching is |
| /// discouraged with an unused variant. |
| </span><span class="attribute">#[derive(PartialEq, Eq, Clone, Copy, Debug)] |
| #[non_exhaustive] |
| </span><span class="kw">pub enum </span>SyntaxViolation { |
| $( |
| <span class="macro-nonterminal">$name</span>, |
| )+ |
| } |
| |
| <span class="kw">impl </span>SyntaxViolation { |
| <span class="kw">pub fn </span>description(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| $( |
| SyntaxViolation::<span class="macro-nonterminal">$name </span>=> <span class="macro-nonterminal">$description</span>, |
| )+ |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="macro">syntax_violation_enum! </span>{ |
| Backslash => <span class="string">"backslash"</span>, |
| C0SpaceIgnored => |
| <span class="string">"leading or trailing control or space character are ignored in URLs"</span>, |
| EmbeddedCredentials => |
| <span class="string">"embedding authentication information (username or password) \ |
| in an URL is not recommended"</span>, |
| ExpectedDoubleSlash => <span class="string">"expected //"</span>, |
| ExpectedFileDoubleSlash => <span class="string">"expected // after file:"</span>, |
| FileWithHostAndWindowsDrive => <span class="string">"file: with host and Windows drive letter"</span>, |
| NonUrlCodePoint => <span class="string">"non-URL code point"</span>, |
| NullInFragment => <span class="string">"NULL characters are ignored in URL fragment identifiers"</span>, |
| PercentDecode => <span class="string">"expected 2 hex digits after %"</span>, |
| TabOrNewlineIgnored => <span class="string">"tabs or newlines are ignored in URLs"</span>, |
| UnencodedAtSign => <span class="string">"unencoded @ sign in username or password"</span>, |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>SyntaxViolation { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| fmt::Display::fmt(<span class="self">self</span>.description(), f) |
| } |
| } |
| |
| <span class="attribute">#[derive(Copy, Clone, PartialEq, Eq)] |
| </span><span class="kw">pub enum </span>SchemeType { |
| File, |
| SpecialNotFile, |
| NotSpecial, |
| } |
| |
| <span class="kw">impl </span>SchemeType { |
| <span class="kw">pub fn </span>is_special(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| !<span class="macro">matches!</span>(<span class="kw-2">*</span><span class="self">self</span>, SchemeType::NotSpecial) |
| } |
| |
| <span class="kw">pub fn </span>is_file(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="macro">matches!</span>(<span class="kw-2">*</span><span class="self">self</span>, SchemeType::File) |
| } |
| |
| <span class="kw">pub fn </span>from(s: <span class="kw-2">&</span>str) -> <span class="self">Self </span>{ |
| <span class="kw">match </span>s { |
| <span class="string">"http" </span>| <span class="string">"https" </span>| <span class="string">"ws" </span>| <span class="string">"wss" </span>| <span class="string">"ftp" </span>=> SchemeType::SpecialNotFile, |
| <span class="string">"file" </span>=> SchemeType::File, |
| <span class="kw">_ </span>=> SchemeType::NotSpecial, |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>default_port(scheme: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><u16> { |
| <span class="kw">match </span>scheme { |
| <span class="string">"http" </span>| <span class="string">"ws" </span>=> <span class="prelude-val">Some</span>(<span class="number">80</span>), |
| <span class="string">"https" </span>| <span class="string">"wss" </span>=> <span class="prelude-val">Some</span>(<span class="number">443</span>), |
| <span class="string">"ftp" </span>=> <span class="prelude-val">Some</span>(<span class="number">21</span>), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>Input<<span class="lifetime">'i</span>> { |
| chars: str::Chars<<span class="lifetime">'i</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'i</span>> Input<<span class="lifetime">'i</span>> { |
| <span class="kw">pub fn </span>new(input: <span class="kw-2">&</span><span class="lifetime">'i </span>str) -> <span class="self">Self </span>{ |
| Input::with_log(input, <span class="prelude-val">None</span>) |
| } |
| |
| <span class="kw">pub fn </span>no_trim(input: <span class="kw-2">&</span><span class="lifetime">'i </span>str) -> <span class="self">Self </span>{ |
| Input { |
| chars: input.chars(), |
| } |
| } |
| |
| <span class="kw">pub fn </span>trim_tab_and_newlines( |
| original_input: <span class="kw-2">&</span><span class="lifetime">'i </span>str, |
| vfn: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="kw">dyn </span>Fn(SyntaxViolation)>, |
| ) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>input = original_input.trim_matches(ascii_tab_or_new_line); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(vfn) = vfn { |
| <span class="kw">if </span>input.len() < original_input.len() { |
| vfn(SyntaxViolation::C0SpaceIgnored) |
| } |
| <span class="kw">if </span>input.chars().any(|c| <span class="macro">matches!</span>(c, <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r'</span>)) { |
| vfn(SyntaxViolation::TabOrNewlineIgnored) |
| } |
| } |
| Input { |
| chars: input.chars(), |
| } |
| } |
| |
| <span class="kw">pub fn </span>with_log(original_input: <span class="kw-2">&</span><span class="lifetime">'i </span>str, vfn: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="kw">dyn </span>Fn(SyntaxViolation)>) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>input = original_input.trim_matches(c0_control_or_space); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(vfn) = vfn { |
| <span class="kw">if </span>input.len() < original_input.len() { |
| vfn(SyntaxViolation::C0SpaceIgnored) |
| } |
| <span class="kw">if </span>input.chars().any(|c| <span class="macro">matches!</span>(c, <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r'</span>)) { |
| vfn(SyntaxViolation::TabOrNewlineIgnored) |
| } |
| } |
| Input { |
| chars: input.chars(), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.clone().next().is_none() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>starts_with<P: Pattern>(<span class="kw-2">&</span><span class="self">self</span>, p: P) -> bool { |
| p.split_prefix(<span class="kw-2">&mut </span><span class="self">self</span>.clone()) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>split_prefix<P: Pattern>(<span class="kw-2">&</span><span class="self">self</span>, p: P) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>remaining = <span class="self">self</span>.clone(); |
| <span class="kw">if </span>p.split_prefix(<span class="kw-2">&mut </span>remaining) { |
| <span class="prelude-val">Some</span>(remaining) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>split_first(<span class="kw-2">&</span><span class="self">self</span>) -> (<span class="prelude-ty">Option</span><char>, <span class="self">Self</span>) { |
| <span class="kw">let </span><span class="kw-2">mut </span>remaining = <span class="self">self</span>.clone(); |
| (remaining.next(), remaining) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>count_matching<F: Fn(char) -> bool>(<span class="kw-2">&</span><span class="self">self</span>, f: F) -> (u32, <span class="self">Self</span>) { |
| <span class="kw">let </span><span class="kw-2">mut </span>count = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>remaining = <span class="self">self</span>.clone(); |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>input = remaining.clone(); |
| <span class="kw">if </span><span class="macro">matches!</span>(input.next(), <span class="prelude-val">Some</span>(c) <span class="kw">if </span>f(c)) { |
| remaining = input; |
| count += <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| <span class="kw">return </span>(count, remaining); |
| } |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>next_utf8(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><(char, <span class="kw-2">&</span><span class="lifetime">'i </span>str)> { |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>utf8 = <span class="self">self</span>.chars.as_str(); |
| <span class="kw">match </span><span class="self">self</span>.chars.next() { |
| <span class="prelude-val">Some</span>(c) => { |
| <span class="kw">if </span>!<span class="macro">matches!</span>(c, <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r'</span>) { |
| <span class="kw">return </span><span class="prelude-val">Some</span>((c, <span class="kw-2">&</span>utf8[..c.len_utf8()])); |
| } |
| } |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| } |
| } |
| } |
| } |
| |
| <span class="kw">pub trait </span>Pattern { |
| <span class="kw">fn </span>split_prefix(<span class="self">self</span>, input: <span class="kw-2">&mut </span>Input) -> bool; |
| } |
| |
| <span class="kw">impl </span>Pattern <span class="kw">for </span>char { |
| <span class="kw">fn </span>split_prefix(<span class="self">self</span>, input: <span class="kw-2">&mut </span>Input) -> bool { |
| input.next() == <span class="prelude-val">Some</span>(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Pattern <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>str { |
| <span class="kw">fn </span>split_prefix(<span class="self">self</span>, input: <span class="kw-2">&mut </span>Input) -> bool { |
| <span class="kw">for </span>c <span class="kw">in </span><span class="self">self</span>.chars() { |
| <span class="kw">if </span>input.next() != <span class="prelude-val">Some</span>(c) { |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| } |
| <span class="bool-val">true |
| </span>} |
| } |
| |
| <span class="kw">impl</span><F: FnMut(char) -> bool> Pattern <span class="kw">for </span>F { |
| <span class="kw">fn </span>split_prefix(<span class="self">self</span>, input: <span class="kw-2">&mut </span>Input) -> bool { |
| input.next().map_or(<span class="bool-val">false</span>, <span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'i</span>> Iterator <span class="kw">for </span>Input<<span class="lifetime">'i</span>> { |
| <span class="kw">type </span>Item = char; |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><char> { |
| <span class="self">self</span>.chars |
| .by_ref() |
| .find(|<span class="kw-2">&</span>c| !<span class="macro">matches!</span>(c, <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r'</span>)) |
| } |
| } |
| |
| <span class="kw">pub struct </span>Parser<<span class="lifetime">'a</span>> { |
| <span class="kw">pub </span>serialization: String, |
| <span class="kw">pub </span>base_url: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>Url>, |
| <span class="kw">pub </span>query_encoding_override: EncodingOverride<<span class="lifetime">'a</span>>, |
| <span class="kw">pub </span>violation_fn: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw">dyn </span>Fn(SyntaxViolation)>, |
| <span class="kw">pub </span>context: Context, |
| } |
| |
| <span class="attribute">#[derive(PartialEq, Eq, Copy, Clone)] |
| </span><span class="kw">pub enum </span>Context { |
| UrlParser, |
| Setter, |
| PathSegmentSetter, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Parser<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>log_violation(<span class="kw-2">&</span><span class="self">self</span>, v: SyntaxViolation) { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(f) = <span class="self">self</span>.violation_fn { |
| f(v) |
| } |
| } |
| |
| <span class="kw">fn </span>log_violation_if(<span class="kw-2">&</span><span class="self">self</span>, v: SyntaxViolation, test: <span class="kw">impl </span>FnOnce() -> bool) { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(f) = <span class="self">self</span>.violation_fn { |
| <span class="kw">if </span>test() { |
| f(v) |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>for_setter(serialization: String) -> Parser<<span class="lifetime">'a</span>> { |
| Parser { |
| serialization, |
| base_url: <span class="prelude-val">None</span>, |
| query_encoding_override: <span class="prelude-val">None</span>, |
| violation_fn: <span class="prelude-val">None</span>, |
| context: Context::Setter, |
| } |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#concept-basic-url-parser |
| </span><span class="kw">pub fn </span>parse_url(<span class="kw-2">mut </span><span class="self">self</span>, input: <span class="kw-2">&</span>str) -> ParseResult<Url> { |
| <span class="kw">let </span>input = Input::with_log(input, <span class="self">self</span>.violation_fn); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(remaining) = <span class="self">self</span>.parse_scheme(input.clone()) { |
| <span class="kw">return </span><span class="self">self</span>.parse_with_scheme(remaining); |
| } |
| |
| <span class="comment">// No-scheme state |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(base_url) = <span class="self">self</span>.base_url { |
| <span class="kw">if </span>input.starts_with(<span class="string">'#'</span>) { |
| <span class="self">self</span>.fragment_only(base_url, input) |
| } <span class="kw">else if </span>base_url.cannot_be_a_base() { |
| <span class="prelude-val">Err</span>(ParseError::RelativeUrlWithCannotBeABaseBase) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>scheme_type = SchemeType::from(base_url.scheme()); |
| <span class="kw">if </span>scheme_type.is_file() { |
| <span class="self">self</span>.parse_file(input, scheme_type, <span class="prelude-val">Some</span>(base_url)) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.parse_relative(input, scheme_type, base_url) |
| } |
| } |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(ParseError::RelativeUrlWithoutBase) |
| } |
| } |
| |
| <span class="kw">pub fn </span>parse_scheme<<span class="lifetime">'i</span>>(<span class="kw-2">&mut </span><span class="self">self</span>, <span class="kw-2">mut </span>input: Input<<span class="lifetime">'i</span>>) -> <span class="prelude-ty">Result</span><Input<<span class="lifetime">'i</span>>, ()> { |
| <span class="kw">if </span>input.is_empty() || !input.starts_with(ascii_alpha) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(()); |
| } |
| <span class="macro">debug_assert!</span>(<span class="self">self</span>.serialization.is_empty()); |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(c) = input.next() { |
| <span class="kw">match </span>c { |
| <span class="string">'a'</span>..=<span class="string">'z' </span>| <span class="string">'A'</span>..=<span class="string">'Z' </span>| <span class="string">'0'</span>..=<span class="string">'9' </span>| <span class="string">'+' </span>| <span class="string">'-' </span>| <span class="string">'.' </span>=> { |
| <span class="self">self</span>.serialization.push(c.to_ascii_lowercase()) |
| } |
| <span class="string">':' </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>(input), |
| <span class="kw">_ </span>=> { |
| <span class="self">self</span>.serialization.clear(); |
| <span class="kw">return </span><span class="prelude-val">Err</span>(()); |
| } |
| } |
| } |
| <span class="comment">// EOF before ':' |
| </span><span class="kw">if </span><span class="self">self</span>.context == Context::Setter { |
| <span class="prelude-val">Ok</span>(input) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization.clear(); |
| <span class="prelude-val">Err</span>(()) |
| } |
| } |
| |
| <span class="kw">fn </span>parse_with_scheme(<span class="kw-2">mut </span><span class="self">self</span>, input: Input<<span class="lifetime">'_</span>>) -> ParseResult<Url> { |
| <span class="kw">use </span><span class="kw">crate</span>::SyntaxViolation::{ExpectedDoubleSlash, ExpectedFileDoubleSlash}; |
| <span class="kw">let </span>scheme_end = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">let </span>scheme_type = SchemeType::from(<span class="kw-2">&</span><span class="self">self</span>.serialization); |
| <span class="self">self</span>.serialization.push(<span class="string">':'</span>); |
| <span class="kw">match </span>scheme_type { |
| SchemeType::File => { |
| <span class="self">self</span>.log_violation_if(ExpectedFileDoubleSlash, || !input.starts_with(<span class="string">"//"</span>)); |
| <span class="kw">let </span>base_file_url = <span class="self">self</span>.base_url.and_then(|base| { |
| <span class="kw">if </span>base.scheme() == <span class="string">"file" </span>{ |
| <span class="prelude-val">Some</span>(base) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| }); |
| <span class="self">self</span>.serialization.clear(); |
| <span class="self">self</span>.parse_file(input, scheme_type, base_file_url) |
| } |
| SchemeType::SpecialNotFile => { |
| <span class="comment">// special relative or authority state |
| </span><span class="kw">let </span>(slashes_count, remaining) = input.count_matching(|c| <span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\'</span>)); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(base_url) = <span class="self">self</span>.base_url { |
| <span class="kw">if </span>slashes_count < <span class="number">2 |
| </span>&& base_url.scheme() == <span class="kw-2">&</span><span class="self">self</span>.serialization[..scheme_end <span class="kw">as </span>usize] |
| { |
| <span class="comment">// "Cannot-be-a-base" URLs only happen with "not special" schemes. |
| </span><span class="macro">debug_assert!</span>(!base_url.cannot_be_a_base()); |
| <span class="self">self</span>.serialization.clear(); |
| <span class="kw">return </span><span class="self">self</span>.parse_relative(input, scheme_type, base_url); |
| } |
| } |
| <span class="comment">// special authority slashes state |
| </span><span class="self">self</span>.log_violation_if(ExpectedDoubleSlash, || { |
| input |
| .clone() |
| .take_while(|<span class="kw-2">&</span>c| <span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\'</span>)) |
| .collect::<String>() |
| != <span class="string">"//" |
| </span>}); |
| <span class="self">self</span>.after_double_slash(remaining, scheme_type, scheme_end) |
| } |
| SchemeType::NotSpecial => <span class="self">self</span>.parse_non_special(input, scheme_type, scheme_end), |
| } |
| } |
| |
| <span class="doccomment">/// Scheme other than file, http, https, ws, ws, ftp. |
| </span><span class="kw">fn </span>parse_non_special( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'_</span>>, |
| scheme_type: SchemeType, |
| scheme_end: u32, |
| ) -> ParseResult<Url> { |
| <span class="comment">// path or authority state ( |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(input) = input.split_prefix(<span class="string">"//"</span>) { |
| <span class="kw">return </span><span class="self">self</span>.after_double_slash(input, scheme_type, scheme_end); |
| } |
| <span class="comment">// Anarchist URL (no authority) |
| </span><span class="kw">let </span>path_start = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">let </span>username_end = path_start; |
| <span class="kw">let </span>host_start = path_start; |
| <span class="kw">let </span>host_end = path_start; |
| <span class="kw">let </span>host = HostInternal::None; |
| <span class="kw">let </span>port = <span class="prelude-val">None</span>; |
| <span class="kw">let </span>remaining = <span class="kw">if let </span><span class="prelude-val">Some</span>(input) = input.split_prefix(<span class="string">'/'</span>) { |
| <span class="kw">let </span>path_start = <span class="self">self</span>.serialization.len(); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="self">self</span>.parse_path(scheme_type, <span class="kw-2">&mut </span><span class="bool-val">false</span>, path_start, input) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.parse_cannot_be_a_base_path(input) |
| }; |
| <span class="self">self</span>.with_query_and_fragment( |
| scheme_type, |
| scheme_end, |
| username_end, |
| host_start, |
| host_end, |
| host, |
| port, |
| path_start, |
| remaining, |
| ) |
| } |
| |
| <span class="kw">fn </span>parse_file( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'_</span>>, |
| scheme_type: SchemeType, |
| base_file_url: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>Url>, |
| ) -> ParseResult<Url> { |
| <span class="kw">use </span><span class="kw">crate</span>::SyntaxViolation::Backslash; |
| <span class="comment">// file state |
| </span><span class="macro">debug_assert!</span>(<span class="self">self</span>.serialization.is_empty()); |
| <span class="kw">let </span>(first_char, input_after_first_char) = input.split_first(); |
| <span class="kw">if </span><span class="macro">matches!</span>(first_char, <span class="prelude-val">Some</span>(<span class="string">'/'</span>) | <span class="prelude-val">Some</span>(<span class="string">'\\'</span>)) { |
| <span class="self">self</span>.log_violation_if(SyntaxViolation::Backslash, || first_char == <span class="prelude-val">Some</span>(<span class="string">'\\'</span>)); |
| <span class="comment">// file slash state |
| </span><span class="kw">let </span>(next_char, input_after_next_char) = input_after_first_char.split_first(); |
| <span class="kw">if </span><span class="macro">matches!</span>(next_char, <span class="prelude-val">Some</span>(<span class="string">'/'</span>) | <span class="prelude-val">Some</span>(<span class="string">'\\'</span>)) { |
| <span class="self">self</span>.log_violation_if(Backslash, || next_char == <span class="prelude-val">Some</span>(<span class="string">'\\'</span>)); |
| <span class="comment">// file host state |
| </span><span class="self">self</span>.serialization.push_str(<span class="string">"file://"</span>); |
| <span class="kw">let </span>scheme_end = <span class="string">"file"</span>.len() <span class="kw">as </span>u32; |
| <span class="kw">let </span>host_start = <span class="string">"file://"</span>.len() <span class="kw">as </span>u32; |
| <span class="kw">let </span>(path_start, <span class="kw-2">mut </span>host, remaining) = |
| <span class="self">self</span>.parse_file_host(input_after_next_char)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>host_end = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>has_host = !<span class="macro">matches!</span>(host, HostInternal::None); |
| <span class="kw">let </span>remaining = <span class="kw">if </span>path_start { |
| <span class="self">self</span>.parse_path_start(SchemeType::File, <span class="kw-2">&mut </span>has_host, remaining) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>path_start = <span class="self">self</span>.serialization.len(); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="self">self</span>.parse_path(SchemeType::File, <span class="kw-2">&mut </span>has_host, path_start, remaining) |
| }; |
| |
| <span class="comment">// For file URLs that have a host and whose path starts |
| // with the windows drive letter we just remove the host. |
| </span><span class="kw">if </span>!has_host { |
| <span class="self">self</span>.serialization |
| .drain(host_start <span class="kw">as </span>usize..host_end <span class="kw">as </span>usize); |
| host_end = host_start; |
| host = HostInternal::None; |
| } |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(scheme_type, scheme_end, remaining)<span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| scheme_end, |
| username_end: host_start, |
| host_start, |
| host_end, |
| host, |
| port: <span class="prelude-val">None</span>, |
| path_start: host_end, |
| query_start, |
| fragment_start, |
| }); |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization.push_str(<span class="string">"file://"</span>); |
| <span class="kw">let </span>scheme_end = <span class="string">"file"</span>.len() <span class="kw">as </span>u32; |
| <span class="kw">let </span>host_start = <span class="string">"file://"</span>.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>host_end = host_start; |
| <span class="kw">let </span><span class="kw-2">mut </span>host = HostInternal::None; |
| <span class="kw">if </span>!starts_with_windows_drive_letter_segment(<span class="kw-2">&</span>input_after_first_char) { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(base_url) = base_file_url { |
| <span class="kw">let </span>first_segment = base_url.path_segments().unwrap().next().unwrap(); |
| <span class="kw">if </span>is_normalized_windows_drive_letter(first_segment) { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="self">self</span>.serialization.push_str(first_segment); |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(host_str) = base_url.host_str() { |
| <span class="self">self</span>.serialization.push_str(host_str); |
| host_end = <span class="self">self</span>.serialization.len(); |
| host = base_url.host; |
| } |
| } |
| } |
| <span class="comment">// If c is the EOF code point, U+002F (/), U+005C (\), U+003F (?), or U+0023 (#), then decrease pointer by one |
| </span><span class="kw">let </span>parse_path_input = <span class="kw">if let </span><span class="prelude-val">Some</span>(c) = first_char { |
| <span class="kw">if </span>c == <span class="string">'/' </span>|| c == <span class="string">'\\' </span>|| c == <span class="string">'?' </span>|| c == <span class="string">'#' </span>{ |
| input |
| } <span class="kw">else </span>{ |
| input_after_first_char |
| } |
| } <span class="kw">else </span>{ |
| input_after_first_char |
| }; |
| |
| <span class="kw">let </span>remaining = |
| <span class="self">self</span>.parse_path(SchemeType::File, <span class="kw-2">&mut </span><span class="bool-val">false</span>, host_end, parse_path_input); |
| |
| <span class="kw">let </span>host_start = host_start <span class="kw">as </span>u32; |
| |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(scheme_type, scheme_end, remaining)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>host_end = host_end <span class="kw">as </span>u32; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| scheme_end, |
| username_end: host_start, |
| host_start, |
| host_end, |
| host, |
| port: <span class="prelude-val">None</span>, |
| path_start: host_end, |
| query_start, |
| fragment_start, |
| }); |
| } |
| } |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(base_url) = base_file_url { |
| <span class="kw">match </span>first_char { |
| <span class="prelude-val">None </span>=> { |
| <span class="comment">// Copy everything except the fragment |
| </span><span class="kw">let </span>before_fragment = <span class="kw">match </span>base_url.fragment_start { |
| <span class="prelude-val">Some</span>(i) => <span class="kw-2">&</span>base_url.serialization[..i <span class="kw">as </span>usize], |
| <span class="prelude-val">None </span>=> <span class="kw-2">&*</span>base_url.serialization, |
| }; |
| <span class="self">self</span>.serialization.push_str(before_fragment); |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| fragment_start: <span class="prelude-val">None</span>, |
| ..<span class="kw-2">*</span>base_url |
| }) |
| } |
| <span class="prelude-val">Some</span>(<span class="string">'?'</span>) => { |
| <span class="comment">// Copy everything up to the query string |
| </span><span class="kw">let </span>before_query = <span class="kw">match </span>(base_url.query_start, base_url.fragment_start) { |
| (<span class="prelude-val">None</span>, <span class="prelude-val">None</span>) => <span class="kw-2">&*</span>base_url.serialization, |
| (<span class="prelude-val">Some</span>(i), <span class="kw">_</span>) | (<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(i)) => base_url.slice(..i), |
| }; |
| <span class="self">self</span>.serialization.push_str(before_query); |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(scheme_type, base_url.scheme_end, input)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| query_start, |
| fragment_start, |
| ..<span class="kw-2">*</span>base_url |
| }) |
| } |
| <span class="prelude-val">Some</span>(<span class="string">'#'</span>) => <span class="self">self</span>.fragment_only(base_url, input), |
| <span class="kw">_ </span>=> { |
| <span class="kw">if </span>!starts_with_windows_drive_letter_segment(<span class="kw-2">&</span>input) { |
| <span class="kw">let </span>before_query = <span class="kw">match </span>(base_url.query_start, base_url.fragment_start) { |
| (<span class="prelude-val">None</span>, <span class="prelude-val">None</span>) => <span class="kw-2">&*</span>base_url.serialization, |
| (<span class="prelude-val">Some</span>(i), <span class="kw">_</span>) | (<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(i)) => base_url.slice(..i), |
| }; |
| <span class="self">self</span>.serialization.push_str(before_query); |
| <span class="self">self</span>.shorten_path(SchemeType::File, base_url.path_start <span class="kw">as </span>usize); |
| <span class="kw">let </span>remaining = <span class="self">self</span>.parse_path( |
| SchemeType::File, |
| <span class="kw-2">&mut </span><span class="bool-val">true</span>, |
| base_url.path_start <span class="kw">as </span>usize, |
| input, |
| ); |
| <span class="self">self</span>.with_query_and_fragment( |
| SchemeType::File, |
| base_url.scheme_end, |
| base_url.username_end, |
| base_url.host_start, |
| base_url.host_end, |
| base_url.host, |
| base_url.port, |
| base_url.path_start, |
| remaining, |
| ) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization.push_str(<span class="string">"file:///"</span>); |
| <span class="kw">let </span>scheme_end = <span class="string">"file"</span>.len() <span class="kw">as </span>u32; |
| <span class="kw">let </span>path_start = <span class="string">"file://"</span>.len(); |
| <span class="kw">let </span>remaining = |
| <span class="self">self</span>.parse_path(SchemeType::File, <span class="kw-2">&mut </span><span class="bool-val">false</span>, path_start, input); |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(SchemeType::File, scheme_end, remaining)<span class="question-mark">?</span>; |
| <span class="kw">let </span>path_start = path_start <span class="kw">as </span>u32; |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| scheme_end, |
| username_end: path_start, |
| host_start: path_start, |
| host_end: path_start, |
| host: HostInternal::None, |
| port: <span class="prelude-val">None</span>, |
| path_start, |
| query_start, |
| fragment_start, |
| }) |
| } |
| } |
| } |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization.push_str(<span class="string">"file:///"</span>); |
| <span class="kw">let </span>scheme_end = <span class="string">"file"</span>.len() <span class="kw">as </span>u32; |
| <span class="kw">let </span>path_start = <span class="string">"file://"</span>.len(); |
| <span class="kw">let </span>remaining = <span class="self">self</span>.parse_path(SchemeType::File, <span class="kw-2">&mut </span><span class="bool-val">false</span>, path_start, input); |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(SchemeType::File, scheme_end, remaining)<span class="question-mark">?</span>; |
| <span class="kw">let </span>path_start = path_start <span class="kw">as </span>u32; |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| scheme_end, |
| username_end: path_start, |
| host_start: path_start, |
| host_end: path_start, |
| host: HostInternal::None, |
| port: <span class="prelude-val">None</span>, |
| path_start, |
| query_start, |
| fragment_start, |
| }) |
| } |
| } |
| |
| <span class="kw">fn </span>parse_relative( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'_</span>>, |
| scheme_type: SchemeType, |
| base_url: <span class="kw-2">&</span>Url, |
| ) -> ParseResult<Url> { |
| <span class="comment">// relative state |
| </span><span class="macro">debug_assert!</span>(<span class="self">self</span>.serialization.is_empty()); |
| <span class="kw">let </span>(first_char, input_after_first_char) = input.split_first(); |
| <span class="kw">match </span>first_char { |
| <span class="prelude-val">None </span>=> { |
| <span class="comment">// Copy everything except the fragment |
| </span><span class="kw">let </span>before_fragment = <span class="kw">match </span>base_url.fragment_start { |
| <span class="prelude-val">Some</span>(i) => <span class="kw-2">&</span>base_url.serialization[..i <span class="kw">as </span>usize], |
| <span class="prelude-val">None </span>=> <span class="kw-2">&*</span>base_url.serialization, |
| }; |
| <span class="self">self</span>.serialization.push_str(before_fragment); |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| fragment_start: <span class="prelude-val">None</span>, |
| ..<span class="kw-2">*</span>base_url |
| }) |
| } |
| <span class="prelude-val">Some</span>(<span class="string">'?'</span>) => { |
| <span class="comment">// Copy everything up to the query string |
| </span><span class="kw">let </span>before_query = <span class="kw">match </span>(base_url.query_start, base_url.fragment_start) { |
| (<span class="prelude-val">None</span>, <span class="prelude-val">None</span>) => <span class="kw-2">&*</span>base_url.serialization, |
| (<span class="prelude-val">Some</span>(i), <span class="kw">_</span>) | (<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(i)) => base_url.slice(..i), |
| }; |
| <span class="self">self</span>.serialization.push_str(before_query); |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(scheme_type, base_url.scheme_end, input)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| query_start, |
| fragment_start, |
| ..<span class="kw-2">*</span>base_url |
| }) |
| } |
| <span class="prelude-val">Some</span>(<span class="string">'#'</span>) => <span class="self">self</span>.fragment_only(base_url, input), |
| <span class="prelude-val">Some</span>(<span class="string">'/'</span>) | <span class="prelude-val">Some</span>(<span class="string">'\\'</span>) => { |
| <span class="kw">let </span>(slashes_count, remaining) = input.count_matching(|c| <span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\'</span>)); |
| <span class="kw">if </span>slashes_count >= <span class="number">2 </span>{ |
| <span class="self">self</span>.log_violation_if(SyntaxViolation::ExpectedDoubleSlash, || { |
| input |
| .clone() |
| .take_while(|<span class="kw-2">&</span>c| <span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\'</span>)) |
| .collect::<String>() |
| != <span class="string">"//" |
| </span>}); |
| <span class="kw">let </span>scheme_end = base_url.scheme_end; |
| <span class="macro">debug_assert!</span>(base_url.byte_at(scheme_end) == <span class="string">b':'</span>); |
| <span class="self">self</span>.serialization |
| .push_str(base_url.slice(..scheme_end + <span class="number">1</span>)); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(after_prefix) = input.split_prefix(<span class="string">"//"</span>) { |
| <span class="kw">return </span><span class="self">self</span>.after_double_slash(after_prefix, scheme_type, scheme_end); |
| } |
| <span class="kw">return </span><span class="self">self</span>.after_double_slash(remaining, scheme_type, scheme_end); |
| } |
| <span class="kw">let </span>path_start = base_url.path_start; |
| <span class="self">self</span>.serialization.push_str(base_url.slice(..path_start)); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="kw">let </span>remaining = <span class="self">self</span>.parse_path( |
| scheme_type, |
| <span class="kw-2">&mut </span><span class="bool-val">true</span>, |
| path_start <span class="kw">as </span>usize, |
| input_after_first_char, |
| ); |
| <span class="self">self</span>.with_query_and_fragment( |
| scheme_type, |
| base_url.scheme_end, |
| base_url.username_end, |
| base_url.host_start, |
| base_url.host_end, |
| base_url.host, |
| base_url.port, |
| base_url.path_start, |
| remaining, |
| ) |
| } |
| <span class="kw">_ </span>=> { |
| <span class="kw">let </span>before_query = <span class="kw">match </span>(base_url.query_start, base_url.fragment_start) { |
| (<span class="prelude-val">None</span>, <span class="prelude-val">None</span>) => <span class="kw-2">&*</span>base_url.serialization, |
| (<span class="prelude-val">Some</span>(i), <span class="kw">_</span>) | (<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(i)) => base_url.slice(..i), |
| }; |
| <span class="self">self</span>.serialization.push_str(before_query); |
| <span class="comment">// FIXME spec says just "remove last entry", not the "pop" algorithm |
| </span><span class="self">self</span>.pop_path(scheme_type, base_url.path_start <span class="kw">as </span>usize); |
| <span class="comment">// A special url always has a path. |
| // A path always starts with '/' |
| </span><span class="kw">if </span><span class="self">self</span>.serialization.len() == base_url.path_start <span class="kw">as </span>usize |
| && (SchemeType::from(base_url.scheme()).is_special() || !input.is_empty()) |
| { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| } |
| <span class="kw">let </span>remaining = <span class="kw">match </span>input.split_first() { |
| (<span class="prelude-val">Some</span>(<span class="string">'/'</span>), remaining) => <span class="self">self</span>.parse_path( |
| scheme_type, |
| <span class="kw-2">&mut </span><span class="bool-val">true</span>, |
| base_url.path_start <span class="kw">as </span>usize, |
| remaining, |
| ), |
| <span class="kw">_ </span>=> { |
| <span class="self">self</span>.parse_path(scheme_type, <span class="kw-2">&mut </span><span class="bool-val">true</span>, base_url.path_start <span class="kw">as </span>usize, input) |
| } |
| }; |
| <span class="self">self</span>.with_query_and_fragment( |
| scheme_type, |
| base_url.scheme_end, |
| base_url.username_end, |
| base_url.host_start, |
| base_url.host_end, |
| base_url.host, |
| base_url.port, |
| base_url.path_start, |
| remaining, |
| ) |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>after_double_slash( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'_</span>>, |
| scheme_type: SchemeType, |
| scheme_end: u32, |
| ) -> ParseResult<Url> { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="comment">// authority state |
| </span><span class="kw">let </span>before_authority = <span class="self">self</span>.serialization.len(); |
| <span class="kw">let </span>(username_end, remaining) = <span class="self">self</span>.parse_userinfo(input, scheme_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span>has_authority = before_authority != <span class="self">self</span>.serialization.len(); |
| <span class="comment">// host state |
| </span><span class="kw">let </span>host_start = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">let </span>(host_end, host, port, remaining) = |
| <span class="self">self</span>.parse_host_and_port(remaining, scheme_end, scheme_type)<span class="question-mark">?</span>; |
| <span class="kw">if </span>host == HostInternal::None && has_authority { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::EmptyHost); |
| } |
| <span class="comment">// path state |
| </span><span class="kw">let </span>path_start = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">let </span>remaining = <span class="self">self</span>.parse_path_start(scheme_type, <span class="kw-2">&mut </span><span class="bool-val">true</span>, remaining); |
| <span class="self">self</span>.with_query_and_fragment( |
| scheme_type, |
| scheme_end, |
| username_end, |
| host_start, |
| host_end, |
| host, |
| port, |
| path_start, |
| remaining, |
| ) |
| } |
| |
| <span class="doccomment">/// Return (username_end, remaining) |
| </span><span class="kw">fn </span>parse_userinfo<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'i</span>>, |
| scheme_type: SchemeType, |
| ) -> ParseResult<(u32, Input<<span class="lifetime">'i</span>>)> { |
| <span class="kw">let </span><span class="kw-2">mut </span>last_at = <span class="prelude-val">None</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>remaining = input.clone(); |
| <span class="kw">let </span><span class="kw-2">mut </span>char_count = <span class="number">0</span>; |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(c) = remaining.next() { |
| <span class="kw">match </span>c { |
| <span class="string">'@' </span>=> { |
| <span class="kw">if </span>last_at.is_some() { |
| <span class="self">self</span>.log_violation(SyntaxViolation::UnencodedAtSign) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.log_violation(SyntaxViolation::EmbeddedCredentials) |
| } |
| last_at = <span class="prelude-val">Some</span>((char_count, remaining.clone())) |
| } |
| <span class="string">'/' </span>| <span class="string">'?' </span>| <span class="string">'#' </span>=> <span class="kw">break</span>, |
| <span class="string">'\\' </span><span class="kw">if </span>scheme_type.is_special() => <span class="kw">break</span>, |
| <span class="kw">_ </span>=> (), |
| } |
| char_count += <span class="number">1</span>; |
| } |
| <span class="kw">let </span>(<span class="kw-2">mut </span>userinfo_char_count, remaining) = <span class="kw">match </span>last_at { |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>((to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>, input)), |
| <span class="prelude-val">Some</span>((<span class="number">0</span>, remaining)) => { |
| <span class="comment">// Otherwise, if one of the following is true |
| // c is the EOF code point, U+002F (/), U+003F (?), or U+0023 (#) |
| // url is special and c is U+005C (\) |
| // If @ flag is set and buffer is the empty string, validation error, return failure. |
| </span><span class="kw">if let </span>(<span class="prelude-val">Some</span>(c), <span class="kw">_</span>) = remaining.split_first() { |
| <span class="kw">if </span>c == <span class="string">'/' </span>|| c == <span class="string">'?' </span>|| c == <span class="string">'#' </span>|| (scheme_type.is_special() && c == <span class="string">'\\'</span>) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::EmptyHost); |
| } |
| } |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>, remaining)); |
| } |
| <span class="prelude-val">Some</span>(x) => x, |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>username_end = <span class="prelude-val">None</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>has_password = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>has_username = <span class="bool-val">false</span>; |
| <span class="kw">while </span>userinfo_char_count > <span class="number">0 </span>{ |
| <span class="kw">let </span>(c, utf8_c) = input.next_utf8().unwrap(); |
| userinfo_char_count -= <span class="number">1</span>; |
| <span class="kw">if </span>c == <span class="string">':' </span>&& username_end.is_none() { |
| <span class="comment">// Start parsing password |
| </span>username_end = <span class="prelude-val">Some</span>(to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>); |
| <span class="comment">// We don't add a colon if the password is empty |
| </span><span class="kw">if </span>userinfo_char_count > <span class="number">0 </span>{ |
| <span class="self">self</span>.serialization.push(<span class="string">':'</span>); |
| has_password = <span class="bool-val">true</span>; |
| } |
| } <span class="kw">else </span>{ |
| <span class="kw">if </span>!has_password { |
| has_username = <span class="bool-val">true</span>; |
| } |
| <span class="self">self</span>.check_url_code_point(c, <span class="kw-2">&</span>input); |
| <span class="self">self</span>.serialization |
| .extend(utf8_percent_encode(utf8_c, USERINFO)); |
| } |
| } |
| <span class="kw">let </span>username_end = <span class="kw">match </span>username_end { |
| <span class="prelude-val">Some</span>(i) => i, |
| <span class="prelude-val">None </span>=> to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>, |
| }; |
| <span class="kw">if </span>has_username || has_password { |
| <span class="self">self</span>.serialization.push(<span class="string">'@'</span>); |
| } |
| <span class="prelude-val">Ok</span>((username_end, remaining)) |
| } |
| |
| <span class="kw">fn </span>parse_host_and_port<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'i</span>>, |
| scheme_end: u32, |
| scheme_type: SchemeType, |
| ) -> ParseResult<(u32, HostInternal, <span class="prelude-ty">Option</span><u16>, Input<<span class="lifetime">'i</span>>)> { |
| <span class="kw">let </span>(host, remaining) = Parser::parse_host(input, scheme_type)<span class="question-mark">?</span>; |
| <span class="macro">write!</span>(<span class="kw-2">&mut </span><span class="self">self</span>.serialization, <span class="string">"{}"</span>, host).unwrap(); |
| <span class="kw">let </span>host_end = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="kw">if let </span>Host::Domain(h) = <span class="kw-2">&</span>host { |
| <span class="kw">if </span>h.is_empty() { |
| <span class="comment">// Port with an empty host |
| </span><span class="kw">if </span>remaining.starts_with(<span class="string">":"</span>) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::EmptyHost); |
| } |
| <span class="kw">if </span>scheme_type.is_special() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::EmptyHost); |
| } |
| } |
| }; |
| |
| <span class="kw">let </span>(port, remaining) = <span class="kw">if let </span><span class="prelude-val">Some</span>(remaining) = remaining.split_prefix(<span class="string">':'</span>) { |
| <span class="kw">let </span>scheme = || default_port(<span class="kw-2">&</span><span class="self">self</span>.serialization[..scheme_end <span class="kw">as </span>usize]); |
| Parser::parse_port(remaining, scheme, <span class="self">self</span>.context)<span class="question-mark">? |
| </span>} <span class="kw">else </span>{ |
| (<span class="prelude-val">None</span>, remaining) |
| }; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(port) = port { |
| <span class="macro">write!</span>(<span class="kw-2">&mut </span><span class="self">self</span>.serialization, <span class="string">":{}"</span>, port).unwrap() |
| } |
| <span class="prelude-val">Ok</span>((host_end, host.into(), port, remaining)) |
| } |
| |
| <span class="kw">pub fn </span>parse_host( |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'_</span>>, |
| scheme_type: SchemeType, |
| ) -> ParseResult<(Host<String>, Input<<span class="lifetime">'_</span>>)> { |
| <span class="kw">if </span>scheme_type.is_file() { |
| <span class="kw">return </span>Parser::get_file_host(input); |
| } |
| <span class="comment">// Undo the Input abstraction here to avoid allocating in the common case |
| // where the host part of the input does not contain any tab or newline |
| </span><span class="kw">let </span>input_str = input.chars.as_str(); |
| <span class="kw">let </span><span class="kw-2">mut </span>inside_square_brackets = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>has_ignored_chars = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>non_ignored_chars = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = <span class="number">0</span>; |
| <span class="kw">for </span>c <span class="kw">in </span>input_str.chars() { |
| <span class="kw">match </span>c { |
| <span class="string">':' </span><span class="kw">if </span>!inside_square_brackets => <span class="kw">break</span>, |
| <span class="string">'\\' </span><span class="kw">if </span>scheme_type.is_special() => <span class="kw">break</span>, |
| <span class="string">'/' </span>| <span class="string">'?' </span>| <span class="string">'#' </span>=> <span class="kw">break</span>, |
| <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r' </span>=> { |
| has_ignored_chars = <span class="bool-val">true</span>; |
| } |
| <span class="string">'[' </span>=> { |
| inside_square_brackets = <span class="bool-val">true</span>; |
| non_ignored_chars += <span class="number">1 |
| </span>} |
| <span class="string">']' </span>=> { |
| inside_square_brackets = <span class="bool-val">false</span>; |
| non_ignored_chars += <span class="number">1 |
| </span>} |
| <span class="kw">_ </span>=> non_ignored_chars += <span class="number">1</span>, |
| } |
| bytes += c.len_utf8(); |
| } |
| <span class="kw">let </span>replaced: String; |
| <span class="kw">let </span>host_str; |
| { |
| <span class="kw">let </span>host_input = input.by_ref().take(non_ignored_chars); |
| <span class="kw">if </span>has_ignored_chars { |
| replaced = host_input.collect(); |
| host_str = <span class="kw-2">&*</span>replaced |
| } <span class="kw">else </span>{ |
| <span class="kw">for _ in </span>host_input {} |
| host_str = <span class="kw-2">&</span>input_str[..bytes] |
| } |
| } |
| <span class="kw">if </span>scheme_type == SchemeType::SpecialNotFile && host_str.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::EmptyHost); |
| } |
| <span class="kw">if </span>!scheme_type.is_special() { |
| <span class="kw">let </span>host = Host::parse_opaque(host_str)<span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((host, input)); |
| } |
| <span class="kw">let </span>host = Host::parse(host_str)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>((host, input)) |
| } |
| |
| <span class="kw">fn </span>get_file_host(input: Input<<span class="lifetime">'_</span>>) -> ParseResult<(Host<String>, Input<<span class="lifetime">'_</span>>)> { |
| <span class="kw">let </span>(<span class="kw">_</span>, host_str, remaining) = Parser::file_host(input)<span class="question-mark">?</span>; |
| <span class="kw">let </span>host = <span class="kw">match </span>Host::parse(<span class="kw-2">&</span>host_str)<span class="question-mark">? </span>{ |
| Host::Domain(<span class="kw-2">ref </span>d) <span class="kw">if </span>d == <span class="string">"localhost" </span>=> Host::Domain(<span class="string">""</span>.to_string()), |
| host => host, |
| }; |
| <span class="prelude-val">Ok</span>((host, remaining)) |
| } |
| |
| <span class="kw">fn </span>parse_file_host<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| input: Input<<span class="lifetime">'i</span>>, |
| ) -> ParseResult<(bool, HostInternal, Input<<span class="lifetime">'i</span>>)> { |
| <span class="kw">let </span>has_host; |
| <span class="kw">let </span>(<span class="kw">_</span>, host_str, remaining) = Parser::file_host(input)<span class="question-mark">?</span>; |
| <span class="kw">let </span>host = <span class="kw">if </span>host_str.is_empty() { |
| has_host = <span class="bool-val">false</span>; |
| HostInternal::None |
| } <span class="kw">else </span>{ |
| <span class="kw">match </span>Host::parse(<span class="kw-2">&</span>host_str)<span class="question-mark">? </span>{ |
| Host::Domain(<span class="kw-2">ref </span>d) <span class="kw">if </span>d == <span class="string">"localhost" </span>=> { |
| has_host = <span class="bool-val">false</span>; |
| HostInternal::None |
| } |
| host => { |
| <span class="macro">write!</span>(<span class="kw-2">&mut </span><span class="self">self</span>.serialization, <span class="string">"{}"</span>, host).unwrap(); |
| has_host = <span class="bool-val">true</span>; |
| host.into() |
| } |
| } |
| }; |
| <span class="prelude-val">Ok</span>((has_host, host, remaining)) |
| } |
| |
| <span class="kw">pub fn </span>file_host(input: Input) -> ParseResult<(bool, String, Input)> { |
| <span class="comment">// Undo the Input abstraction here to avoid allocating in the common case |
| // where the host part of the input does not contain any tab or newline |
| </span><span class="kw">let </span>input_str = input.chars.as_str(); |
| <span class="kw">let </span><span class="kw-2">mut </span>has_ignored_chars = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>non_ignored_chars = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = <span class="number">0</span>; |
| <span class="kw">for </span>c <span class="kw">in </span>input_str.chars() { |
| <span class="kw">match </span>c { |
| <span class="string">'/' </span>| <span class="string">'\\' </span>| <span class="string">'?' </span>| <span class="string">'#' </span>=> <span class="kw">break</span>, |
| <span class="string">'\t' </span>| <span class="string">'\n' </span>| <span class="string">'\r' </span>=> has_ignored_chars = <span class="bool-val">true</span>, |
| <span class="kw">_ </span>=> non_ignored_chars += <span class="number">1</span>, |
| } |
| bytes += c.len_utf8(); |
| } |
| <span class="kw">let </span>replaced: String; |
| <span class="kw">let </span>host_str; |
| <span class="kw">let </span><span class="kw-2">mut </span>remaining = input.clone(); |
| { |
| <span class="kw">let </span>host_input = remaining.by_ref().take(non_ignored_chars); |
| <span class="kw">if </span>has_ignored_chars { |
| replaced = host_input.collect(); |
| host_str = <span class="kw-2">&*</span>replaced |
| } <span class="kw">else </span>{ |
| <span class="kw">for _ in </span>host_input {} |
| host_str = <span class="kw-2">&</span>input_str[..bytes] |
| } |
| } |
| <span class="kw">if </span>is_windows_drive_letter(host_str) { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((<span class="bool-val">false</span>, <span class="string">""</span>.to_string(), input)); |
| } |
| <span class="prelude-val">Ok</span>((<span class="bool-val">true</span>, host_str.to_string(), remaining)) |
| } |
| |
| <span class="kw">pub fn </span>parse_port<P>( |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'_</span>>, |
| default_port: P, |
| context: Context, |
| ) -> ParseResult<(<span class="prelude-ty">Option</span><u16>, Input<<span class="lifetime">'_</span>>)> |
| <span class="kw">where |
| </span>P: Fn() -> <span class="prelude-ty">Option</span><u16>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>port: u32 = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>has_any_digit = <span class="bool-val">false</span>; |
| <span class="kw">while let </span>(<span class="prelude-val">Some</span>(c), remaining) = input.split_first() { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(digit) = c.to_digit(<span class="number">10</span>) { |
| port = port * <span class="number">10 </span>+ digit; |
| <span class="kw">if </span>port > ::std::u16::MAX <span class="kw">as </span>u32 { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::InvalidPort); |
| } |
| has_any_digit = <span class="bool-val">true</span>; |
| } <span class="kw">else if </span>context == Context::UrlParser && !<span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\' </span>| <span class="string">'?' </span>| <span class="string">'#'</span>) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::InvalidPort); |
| } <span class="kw">else </span>{ |
| <span class="kw">break</span>; |
| } |
| input = remaining; |
| } |
| <span class="kw">let </span><span class="kw-2">mut </span>opt_port = <span class="prelude-val">Some</span>(port <span class="kw">as </span>u16); |
| <span class="kw">if </span>!has_any_digit || opt_port == default_port() { |
| opt_port = <span class="prelude-val">None</span>; |
| } |
| <span class="prelude-val">Ok</span>((opt_port, input)) |
| } |
| |
| <span class="kw">pub fn </span>parse_path_start<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| scheme_type: SchemeType, |
| has_host: <span class="kw-2">&mut </span>bool, |
| input: Input<<span class="lifetime">'i</span>>, |
| ) -> Input<<span class="lifetime">'i</span>> { |
| <span class="kw">let </span>path_start = <span class="self">self</span>.serialization.len(); |
| <span class="kw">let </span>(maybe_c, remaining) = input.split_first(); |
| <span class="comment">// If url is special, then: |
| </span><span class="kw">if </span>scheme_type.is_special() { |
| <span class="kw">if </span>maybe_c == <span class="prelude-val">Some</span>(<span class="string">'\\'</span>) { |
| <span class="comment">// If c is U+005C (\), validation error. |
| </span><span class="self">self</span>.log_violation(SyntaxViolation::Backslash); |
| } |
| <span class="comment">// A special URL always has a non-empty path. |
| </span><span class="kw">if </span>!<span class="self">self</span>.serialization.ends_with(<span class="string">'/'</span>) { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="comment">// We have already made sure the forward slash is present. |
| </span><span class="kw">if </span>maybe_c == <span class="prelude-val">Some</span>(<span class="string">'/'</span>) || maybe_c == <span class="prelude-val">Some</span>(<span class="string">'\\'</span>) { |
| <span class="kw">return </span><span class="self">self</span>.parse_path(scheme_type, has_host, path_start, remaining); |
| } |
| } |
| <span class="kw">return </span><span class="self">self</span>.parse_path(scheme_type, has_host, path_start, input); |
| } <span class="kw">else if </span>maybe_c == <span class="prelude-val">Some</span>(<span class="string">'?'</span>) || maybe_c == <span class="prelude-val">Some</span>(<span class="string">'#'</span>) { |
| <span class="comment">// Otherwise, if state override is not given and c is U+003F (?), |
| // set url’s query to the empty string and state to query state. |
| // Otherwise, if state override is not given and c is U+0023 (#), |
| // set url’s fragment to the empty string and state to fragment state. |
| // The query and path states will be handled by the caller. |
| </span><span class="kw">return </span>input; |
| } |
| |
| <span class="kw">if </span>maybe_c != <span class="prelude-val">None </span>&& maybe_c != <span class="prelude-val">Some</span>(<span class="string">'/'</span>) { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| } |
| <span class="comment">// Otherwise, if c is not the EOF code point: |
| </span><span class="self">self</span>.parse_path(scheme_type, has_host, path_start, input) |
| } |
| |
| <span class="kw">pub fn </span>parse_path<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| scheme_type: SchemeType, |
| has_host: <span class="kw-2">&mut </span>bool, |
| path_start: usize, |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'i</span>>, |
| ) -> Input<<span class="lifetime">'i</span>> { |
| <span class="comment">// Relative path state |
| </span><span class="kw">loop </span>{ |
| <span class="kw">let </span>segment_start = <span class="self">self</span>.serialization.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>ends_with_slash = <span class="bool-val">false</span>; |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>input_before_c = input.clone(); |
| <span class="kw">let </span>(c, utf8_c) = <span class="kw">if let </span><span class="prelude-val">Some</span>(x) = input.next_utf8() { |
| x |
| } <span class="kw">else </span>{ |
| <span class="kw">break</span>; |
| }; |
| <span class="kw">match </span>c { |
| <span class="string">'/' </span><span class="kw">if </span><span class="self">self</span>.context != Context::PathSegmentSetter => { |
| <span class="self">self</span>.serialization.push(c); |
| ends_with_slash = <span class="bool-val">true</span>; |
| <span class="kw">break</span>; |
| } |
| <span class="string">'\\' </span><span class="kw">if </span><span class="self">self</span>.context != Context::PathSegmentSetter |
| && scheme_type.is_special() => |
| { |
| <span class="self">self</span>.log_violation(SyntaxViolation::Backslash); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| ends_with_slash = <span class="bool-val">true</span>; |
| <span class="kw">break</span>; |
| } |
| <span class="string">'?' </span>| <span class="string">'#' </span><span class="kw">if </span><span class="self">self</span>.context == Context::UrlParser => { |
| input = input_before_c; |
| <span class="kw">break</span>; |
| } |
| <span class="kw">_ </span>=> { |
| <span class="self">self</span>.check_url_code_point(c, <span class="kw-2">&</span>input); |
| <span class="kw">if </span><span class="self">self</span>.context == Context::PathSegmentSetter { |
| <span class="kw">if </span>scheme_type.is_special() { |
| <span class="self">self</span>.serialization |
| .extend(utf8_percent_encode(utf8_c, SPECIAL_PATH_SEGMENT)); |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization |
| .extend(utf8_percent_encode(utf8_c, PATH_SEGMENT)); |
| } |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.serialization.extend(utf8_percent_encode(utf8_c, PATH)); |
| } |
| } |
| } |
| } |
| <span class="kw">let </span>segment_before_slash = <span class="kw">if </span>ends_with_slash { |
| <span class="kw-2">&</span><span class="self">self</span>.serialization[segment_start..<span class="self">self</span>.serialization.len() - <span class="number">1</span>] |
| } <span class="kw">else </span>{ |
| <span class="kw-2">&</span><span class="self">self</span>.serialization[segment_start..<span class="self">self</span>.serialization.len()] |
| }; |
| <span class="kw">match </span>segment_before_slash { |
| <span class="comment">// If buffer is a double-dot path segment, shorten url’s path, |
| </span><span class="string">".." </span>| <span class="string">"%2e%2e" </span>| <span class="string">"%2e%2E" </span>| <span class="string">"%2E%2e" </span>| <span class="string">"%2E%2E" </span>| <span class="string">"%2e." </span>| <span class="string">"%2E." </span>| <span class="string">".%2e" |
| </span>| <span class="string">".%2E" </span>=> { |
| <span class="macro">debug_assert!</span>(<span class="self">self</span>.serialization.as_bytes()[segment_start - <span class="number">1</span>] == <span class="string">b'/'</span>); |
| <span class="self">self</span>.serialization.truncate(segment_start); |
| <span class="kw">if </span><span class="self">self</span>.serialization.ends_with(<span class="string">'/'</span>) |
| && Parser::last_slash_can_be_removed(<span class="kw-2">&</span><span class="self">self</span>.serialization, path_start) |
| { |
| <span class="self">self</span>.serialization.pop(); |
| } |
| <span class="self">self</span>.shorten_path(scheme_type, path_start); |
| |
| <span class="comment">// and then if neither c is U+002F (/), nor url is special and c is U+005C (\), append the empty string to url’s path. |
| </span><span class="kw">if </span>ends_with_slash && !<span class="self">self</span>.serialization.ends_with(<span class="string">'/'</span>) { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| } |
| } |
| <span class="comment">// Otherwise, if buffer is a single-dot path segment and if neither c is U+002F (/), |
| // nor url is special and c is U+005C (\), append the empty string to url’s path. |
| </span><span class="string">"." </span>| <span class="string">"%2e" </span>| <span class="string">"%2E" </span>=> { |
| <span class="self">self</span>.serialization.truncate(segment_start); |
| <span class="kw">if </span>!<span class="self">self</span>.serialization.ends_with(<span class="string">'/'</span>) { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| } |
| } |
| <span class="kw">_ </span>=> { |
| <span class="comment">// If url’s scheme is "file", url’s path is empty, and buffer is a Windows drive letter, then |
| </span><span class="kw">if </span>scheme_type.is_file() && is_windows_drive_letter(segment_before_slash) { |
| <span class="comment">// Replace the second code point in buffer with U+003A (:). |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(c) = segment_before_slash.chars().next() { |
| <span class="self">self</span>.serialization.truncate(segment_start); |
| <span class="self">self</span>.serialization.push(c); |
| <span class="self">self</span>.serialization.push(<span class="string">':'</span>); |
| <span class="kw">if </span>ends_with_slash { |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| } |
| } |
| <span class="comment">// If url’s host is neither the empty string nor null, |
| // validation error, set url’s host to the empty string. |
| </span><span class="kw">if </span><span class="kw-2">*</span>has_host { |
| <span class="self">self</span>.log_violation(SyntaxViolation::FileWithHostAndWindowsDrive); |
| <span class="kw-2">*</span>has_host = <span class="bool-val">false</span>; <span class="comment">// FIXME account for this in callers |
| </span>} |
| } |
| } |
| } |
| <span class="kw">if </span>!ends_with_slash { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="kw">if </span>scheme_type.is_file() { |
| <span class="comment">// while url’s path’s size is greater than 1 |
| // and url’s path[0] is the empty string, |
| // validation error, remove the first item from url’s path. |
| //FIXME: log violation |
| </span><span class="kw">let </span>path = <span class="self">self</span>.serialization.split_off(path_start); |
| <span class="self">self</span>.serialization.push(<span class="string">'/'</span>); |
| <span class="self">self</span>.serialization.push_str(path.trim_start_matches(<span class="string">'/'</span>)); |
| } |
| |
| input |
| } |
| |
| <span class="kw">fn </span>last_slash_can_be_removed(serialization: <span class="kw-2">&</span>str, path_start: usize) -> bool { |
| <span class="kw">let </span>url_before_segment = <span class="kw-2">&</span>serialization[..serialization.len() - <span class="number">1</span>]; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(segment_before_start) = url_before_segment.rfind(<span class="string">'/'</span>) { |
| <span class="comment">// Do not remove the root slash |
| </span>segment_before_start >= path_start |
| <span class="comment">// Or a windows drive letter slash |
| </span>&& !path_starts_with_windows_drive_letter(<span class="kw-2">&</span>serialization[segment_before_start..]) |
| } <span class="kw">else </span>{ |
| <span class="bool-val">false |
| </span>} |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#shorten-a-urls-path |
| </span><span class="kw">fn </span>shorten_path(<span class="kw-2">&mut </span><span class="self">self</span>, scheme_type: SchemeType, path_start: usize) { |
| <span class="comment">// If path is empty, then return. |
| </span><span class="kw">if </span><span class="self">self</span>.serialization.len() == path_start { |
| <span class="kw">return</span>; |
| } |
| <span class="comment">// If url’s scheme is "file", path’s size is 1, and path[0] is a normalized Windows drive letter, then return. |
| </span><span class="kw">if </span>scheme_type.is_file() |
| && is_normalized_windows_drive_letter(<span class="kw-2">&</span><span class="self">self</span>.serialization[path_start..]) |
| { |
| <span class="kw">return</span>; |
| } |
| <span class="comment">// Remove path’s last item. |
| </span><span class="self">self</span>.pop_path(scheme_type, path_start); |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#pop-a-urls-path |
| </span><span class="kw">fn </span>pop_path(<span class="kw-2">&mut </span><span class="self">self</span>, scheme_type: SchemeType, path_start: usize) { |
| <span class="kw">if </span><span class="self">self</span>.serialization.len() > path_start { |
| <span class="kw">let </span>slash_position = <span class="self">self</span>.serialization[path_start..].rfind(<span class="string">'/'</span>).unwrap(); |
| <span class="comment">// + 1 since rfind returns the position before the slash. |
| </span><span class="kw">let </span>segment_start = path_start + slash_position + <span class="number">1</span>; |
| <span class="comment">// Don’t pop a Windows drive letter |
| </span><span class="kw">if </span>!(scheme_type.is_file() |
| && is_normalized_windows_drive_letter(<span class="kw-2">&</span><span class="self">self</span>.serialization[segment_start..])) |
| { |
| <span class="self">self</span>.serialization.truncate(segment_start); |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>parse_cannot_be_a_base_path<<span class="lifetime">'i</span>>(<span class="kw-2">&mut </span><span class="self">self</span>, <span class="kw-2">mut </span>input: Input<<span class="lifetime">'i</span>>) -> Input<<span class="lifetime">'i</span>> { |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>input_before_c = input.clone(); |
| <span class="kw">match </span>input.next_utf8() { |
| <span class="prelude-val">Some</span>((<span class="string">'?'</span>, <span class="kw">_</span>)) | <span class="prelude-val">Some</span>((<span class="string">'#'</span>, <span class="kw">_</span>)) <span class="kw">if </span><span class="self">self</span>.context == Context::UrlParser => { |
| <span class="kw">return </span>input_before_c |
| } |
| <span class="prelude-val">Some</span>((c, utf8_c)) => { |
| <span class="self">self</span>.check_url_code_point(c, <span class="kw-2">&</span>input); |
| <span class="self">self</span>.serialization |
| .extend(utf8_percent_encode(utf8_c, CONTROLS)); |
| } |
| <span class="prelude-val">None </span>=> <span class="kw">return </span>input, |
| } |
| } |
| } |
| |
| <span class="attribute">#[allow(clippy::too_many_arguments)] |
| </span><span class="kw">fn </span>with_query_and_fragment( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| scheme_type: SchemeType, |
| scheme_end: u32, |
| username_end: u32, |
| host_start: u32, |
| host_end: u32, |
| host: HostInternal, |
| port: <span class="prelude-ty">Option</span><u16>, |
| path_start: u32, |
| remaining: Input<<span class="lifetime">'_</span>>, |
| ) -> ParseResult<Url> { |
| <span class="kw">let </span>(query_start, fragment_start) = |
| <span class="self">self</span>.parse_query_and_fragment(scheme_type, scheme_end, remaining)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| scheme_end, |
| username_end, |
| host_start, |
| host_end, |
| host, |
| port, |
| path_start, |
| query_start, |
| fragment_start, |
| }) |
| } |
| |
| <span class="doccomment">/// Return (query_start, fragment_start) |
| </span><span class="kw">fn </span>parse_query_and_fragment( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| scheme_type: SchemeType, |
| scheme_end: u32, |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'_</span>>, |
| ) -> ParseResult<(<span class="prelude-ty">Option</span><u32>, <span class="prelude-ty">Option</span><u32>)> { |
| <span class="kw">let </span><span class="kw-2">mut </span>query_start = <span class="prelude-val">None</span>; |
| <span class="kw">match </span>input.next() { |
| <span class="prelude-val">Some</span>(<span class="string">'#'</span>) => {} |
| <span class="prelude-val">Some</span>(<span class="string">'?'</span>) => { |
| query_start = <span class="prelude-val">Some</span>(to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>); |
| <span class="self">self</span>.serialization.push(<span class="string">'?'</span>); |
| <span class="kw">let </span>remaining = <span class="self">self</span>.parse_query(scheme_type, scheme_end, input); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(remaining) = remaining { |
| input = remaining |
| } <span class="kw">else </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((query_start, <span class="prelude-val">None</span>)); |
| } |
| } |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>((<span class="prelude-val">None</span>, <span class="prelude-val">None</span>)), |
| <span class="kw">_ </span>=> <span class="macro">panic!</span>(<span class="string">"Programming error. parse_query_and_fragment() called without ? or #"</span>), |
| } |
| |
| <span class="kw">let </span>fragment_start = to_u32(<span class="self">self</span>.serialization.len())<span class="question-mark">?</span>; |
| <span class="self">self</span>.serialization.push(<span class="string">'#'</span>); |
| <span class="self">self</span>.parse_fragment(input); |
| <span class="prelude-val">Ok</span>((query_start, <span class="prelude-val">Some</span>(fragment_start))) |
| } |
| |
| <span class="kw">pub fn </span>parse_query<<span class="lifetime">'i</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| scheme_type: SchemeType, |
| scheme_end: u32, |
| <span class="kw-2">mut </span>input: Input<<span class="lifetime">'i</span>>, |
| ) -> <span class="prelude-ty">Option</span><Input<<span class="lifetime">'i</span>>> { |
| <span class="kw">let </span>len = input.chars.as_str().len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>query = String::with_capacity(len); <span class="comment">// FIXME: use a streaming decoder instead |
| </span><span class="kw">let </span><span class="kw-2">mut </span>remaining = <span class="prelude-val">None</span>; |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(c) = input.next() { |
| <span class="kw">if </span>c == <span class="string">'#' </span>&& <span class="self">self</span>.context == Context::UrlParser { |
| remaining = <span class="prelude-val">Some</span>(input); |
| <span class="kw">break</span>; |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.check_url_code_point(c, <span class="kw-2">&</span>input); |
| query.push(c); |
| } |
| } |
| |
| <span class="kw">let </span>encoding = <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.serialization[..scheme_end <span class="kw">as </span>usize] { |
| <span class="string">"http" </span>| <span class="string">"https" </span>| <span class="string">"file" </span>| <span class="string">"ftp" </span>=> <span class="self">self</span>.query_encoding_override, |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| }; |
| <span class="kw">let </span>query_bytes = <span class="kw">if let </span><span class="prelude-val">Some</span>(o) = encoding { |
| o(<span class="kw-2">&</span>query) |
| } <span class="kw">else </span>{ |
| query.as_bytes().into() |
| }; |
| <span class="kw">let </span>set = <span class="kw">if </span>scheme_type.is_special() { |
| SPECIAL_QUERY |
| } <span class="kw">else </span>{ |
| QUERY |
| }; |
| <span class="self">self</span>.serialization.extend(percent_encode(<span class="kw-2">&</span>query_bytes, set)); |
| remaining |
| } |
| |
| <span class="kw">fn </span>fragment_only(<span class="kw-2">mut </span><span class="self">self</span>, base_url: <span class="kw-2">&</span>Url, <span class="kw-2">mut </span>input: Input<<span class="lifetime">'_</span>>) -> ParseResult<Url> { |
| <span class="kw">let </span>before_fragment = <span class="kw">match </span>base_url.fragment_start { |
| <span class="prelude-val">Some</span>(i) => base_url.slice(..i), |
| <span class="prelude-val">None </span>=> <span class="kw-2">&*</span>base_url.serialization, |
| }; |
| <span class="macro">debug_assert!</span>(<span class="self">self</span>.serialization.is_empty()); |
| <span class="self">self</span>.serialization |
| .reserve(before_fragment.len() + input.chars.as_str().len()); |
| <span class="self">self</span>.serialization.push_str(before_fragment); |
| <span class="self">self</span>.serialization.push(<span class="string">'#'</span>); |
| <span class="kw">let </span>next = input.next(); |
| <span class="macro">debug_assert!</span>(next == <span class="prelude-val">Some</span>(<span class="string">'#'</span>)); |
| <span class="self">self</span>.parse_fragment(input); |
| <span class="prelude-val">Ok</span>(Url { |
| serialization: <span class="self">self</span>.serialization, |
| fragment_start: <span class="prelude-val">Some</span>(to_u32(before_fragment.len())<span class="question-mark">?</span>), |
| ..<span class="kw-2">*</span>base_url |
| }) |
| } |
| |
| <span class="kw">pub fn </span>parse_fragment(<span class="kw-2">&mut </span><span class="self">self</span>, <span class="kw-2">mut </span>input: Input<<span class="lifetime">'_</span>>) { |
| <span class="kw">while let </span><span class="prelude-val">Some</span>((c, utf8_c)) = input.next_utf8() { |
| <span class="kw">if </span>c == <span class="string">'\0' </span>{ |
| <span class="self">self</span>.log_violation(SyntaxViolation::NullInFragment) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.check_url_code_point(c, <span class="kw-2">&</span>input); |
| } |
| <span class="self">self</span>.serialization |
| .extend(utf8_percent_encode(utf8_c, FRAGMENT)); |
| } |
| } |
| |
| <span class="kw">fn </span>check_url_code_point(<span class="kw-2">&</span><span class="self">self</span>, c: char, input: <span class="kw-2">&</span>Input<<span class="lifetime">'_</span>>) { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(vfn) = <span class="self">self</span>.violation_fn { |
| <span class="kw">if </span>c == <span class="string">'%' </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>input = input.clone(); |
| <span class="kw">if </span>!<span class="macro">matches!</span>((input.next(), input.next()), (<span class="prelude-val">Some</span>(a), <span class="prelude-val">Some</span>(b)) |
| <span class="kw">if </span>is_ascii_hex_digit(a) && is_ascii_hex_digit(b)) |
| { |
| vfn(SyntaxViolation::PercentDecode) |
| } |
| } <span class="kw">else if </span>!is_url_code_point(c) { |
| vfn(SyntaxViolation::NonUrlCodePoint) |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>is_ascii_hex_digit(c: char) -> bool { |
| <span class="macro">matches!</span>(c, <span class="string">'a'</span>..=<span class="string">'f' </span>| <span class="string">'A'</span>..=<span class="string">'F' </span>| <span class="string">'0'</span>..=<span class="string">'9'</span>) |
| } |
| |
| <span class="comment">// Non URL code points: |
| // U+0000 to U+0020 (space) |
| // " # % < > [ \ ] ^ ` { | } |
| // U+007F to U+009F |
| // surrogates |
| // U+FDD0 to U+FDEF |
| // Last two of each plane: U+__FFFE to U+__FFFF for __ in 00 to 10 hex |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>is_url_code_point(c: char) -> bool { |
| <span class="macro">matches!</span>(c, |
| <span class="string">'a'</span>..=<span class="string">'z' </span>| |
| <span class="string">'A'</span>..=<span class="string">'Z' </span>| |
| <span class="string">'0'</span>..=<span class="string">'9' </span>| |
| <span class="string">'!' </span>| <span class="string">'$' </span>| <span class="string">'&' </span>| <span class="string">'\'' </span>| <span class="string">'(' </span>| <span class="string">')' </span>| <span class="string">'*' </span>| <span class="string">'+' </span>| <span class="string">',' </span>| <span class="string">'-' </span>| |
| <span class="string">'.' </span>| <span class="string">'/' </span>| <span class="string">':' </span>| <span class="string">';' </span>| <span class="string">'=' </span>| <span class="string">'?' </span>| <span class="string">'@' </span>| <span class="string">'_' </span>| <span class="string">'~' </span>| |
| <span class="string">'\u{A0}'</span>..=<span class="string">'\u{D7FF}' </span>| <span class="string">'\u{E000}'</span>..=<span class="string">'\u{FDCF}' </span>| <span class="string">'\u{FDF0}'</span>..=<span class="string">'\u{FFFD}' </span>| |
| <span class="string">'\u{10000}'</span>..=<span class="string">'\u{1FFFD}' </span>| <span class="string">'\u{20000}'</span>..=<span class="string">'\u{2FFFD}' </span>| |
| <span class="string">'\u{30000}'</span>..=<span class="string">'\u{3FFFD}' </span>| <span class="string">'\u{40000}'</span>..=<span class="string">'\u{4FFFD}' </span>| |
| <span class="string">'\u{50000}'</span>..=<span class="string">'\u{5FFFD}' </span>| <span class="string">'\u{60000}'</span>..=<span class="string">'\u{6FFFD}' </span>| |
| <span class="string">'\u{70000}'</span>..=<span class="string">'\u{7FFFD}' </span>| <span class="string">'\u{80000}'</span>..=<span class="string">'\u{8FFFD}' </span>| |
| <span class="string">'\u{90000}'</span>..=<span class="string">'\u{9FFFD}' </span>| <span class="string">'\u{A0000}'</span>..=<span class="string">'\u{AFFFD}' </span>| |
| <span class="string">'\u{B0000}'</span>..=<span class="string">'\u{BFFFD}' </span>| <span class="string">'\u{C0000}'</span>..=<span class="string">'\u{CFFFD}' </span>| |
| <span class="string">'\u{D0000}'</span>..=<span class="string">'\u{DFFFD}' </span>| <span class="string">'\u{E1000}'</span>..=<span class="string">'\u{EFFFD}' </span>| |
| <span class="string">'\u{F0000}'</span>..=<span class="string">'\u{FFFFD}' </span>| <span class="string">'\u{100000}'</span>..=<span class="string">'\u{10FFFD}'</span>) |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#c0-controls-and-space |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>c0_control_or_space(ch: char) -> bool { |
| ch <= <span class="string">' ' </span><span class="comment">// U+0000 to U+0020 |
| </span>} |
| |
| <span class="doccomment">/// https://infra.spec.whatwg.org/#ascii-tab-or-newline |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>ascii_tab_or_new_line(ch: char) -> bool { |
| <span class="macro">matches!</span>(ch, <span class="string">'\t' </span>| <span class="string">'\r' </span>| <span class="string">'\n'</span>) |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#ascii-alpha |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>ascii_alpha(ch: char) -> bool { |
| <span class="macro">matches!</span>(ch, <span class="string">'a'</span>..=<span class="string">'z' </span>| <span class="string">'A'</span>..=<span class="string">'Z'</span>) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>to_u32(i: usize) -> ParseResult<u32> { |
| <span class="kw">if </span>i <= ::std::u32::MAX <span class="kw">as </span>usize { |
| <span class="prelude-val">Ok</span>(i <span class="kw">as </span>u32) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(ParseError::Overflow) |
| } |
| } |
| |
| <span class="kw">fn </span>is_normalized_windows_drive_letter(segment: <span class="kw-2">&</span>str) -> bool { |
| is_windows_drive_letter(segment) && segment.as_bytes()[<span class="number">1</span>] == <span class="string">b':' |
| </span>} |
| |
| <span class="doccomment">/// Whether the scheme is file:, the path has a single segment, and that segment |
| /// is a Windows drive letter |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>is_windows_drive_letter(segment: <span class="kw-2">&</span>str) -> bool { |
| segment.len() == <span class="number">2 </span>&& starts_with_windows_drive_letter(segment) |
| } |
| |
| <span class="doccomment">/// Whether path starts with a root slash |
| /// and a windows drive letter eg: "/c:" or "/a:/" |
| </span><span class="kw">fn </span>path_starts_with_windows_drive_letter(s: <span class="kw-2">&</span>str) -> bool { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(c) = s.as_bytes().first() { |
| <span class="macro">matches!</span>(c, <span class="string">b'/' </span>| <span class="string">b'\\' </span>| <span class="string">b'?' </span>| <span class="string">b'#'</span>) && starts_with_windows_drive_letter(<span class="kw-2">&</span>s[<span class="number">1</span>..]) |
| } <span class="kw">else </span>{ |
| <span class="bool-val">false |
| </span>} |
| } |
| |
| <span class="kw">fn </span>starts_with_windows_drive_letter(s: <span class="kw-2">&</span>str) -> bool { |
| s.len() >= <span class="number">2 |
| </span>&& ascii_alpha(s.as_bytes()[<span class="number">0</span>] <span class="kw">as </span>char) |
| && <span class="macro">matches!</span>(s.as_bytes()[<span class="number">1</span>], <span class="string">b':' </span>| <span class="string">b'|'</span>) |
| && (s.len() == <span class="number">2 </span>|| <span class="macro">matches!</span>(s.as_bytes()[<span class="number">2</span>], <span class="string">b'/' </span>| <span class="string">b'\\' </span>| <span class="string">b'?' </span>| <span class="string">b'#'</span>)) |
| } |
| |
| <span class="doccomment">/// https://url.spec.whatwg.org/#start-with-a-windows-drive-letter |
| </span><span class="kw">fn </span>starts_with_windows_drive_letter_segment(input: <span class="kw-2">&</span>Input<<span class="lifetime">'_</span>>) -> bool { |
| <span class="kw">let </span><span class="kw-2">mut </span>input = input.clone(); |
| <span class="kw">match </span>(input.next(), input.next(), input.next()) { |
| <span class="comment">// its first two code points are a Windows drive letter |
| // its third code point is U+002F (/), U+005C (\), U+003F (?), or U+0023 (#). |
| </span>(<span class="prelude-val">Some</span>(a), <span class="prelude-val">Some</span>(b), <span class="prelude-val">Some</span>(c)) |
| <span class="kw">if </span>ascii_alpha(a) && <span class="macro">matches!</span>(b, <span class="string">':' </span>| <span class="string">'|'</span>) && <span class="macro">matches!</span>(c, <span class="string">'/' </span>| <span class="string">'\\' </span>| <span class="string">'?' </span>| <span class="string">'#'</span>) => |
| { |
| <span class="bool-val">true |
| </span>} |
| <span class="comment">// its first two code points are a Windows drive letter |
| // its length is 2 |
| </span>(<span class="prelude-val">Some</span>(a), <span class="prelude-val">Some</span>(b), <span class="prelude-val">None</span>) <span class="kw">if </span>ascii_alpha(a) && <span class="macro">matches!</span>(b, <span class="string">':' </span>| <span class="string">'|'</span>) => <span class="bool-val">true</span>, |
| <span class="kw">_ </span>=> <span class="bool-val">false</span>, |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="url" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
