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</pre><pre class="rust ">
<span class="comment">// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT</span>
<span class="comment">// file at the top-level directory of this distribution and at</span>
<span class="comment">// http://rust-lang.org/COPYRIGHT.</span>
<span class="comment">//</span>
<span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span>
<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span>
<span class="comment">// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span>
<span class="comment">// option. This file may not be copied, modified, or distributed</span>
<span class="comment">// except according to those terms.</span>
<span class="doccomment">//! Operations on ASCII strings and characters.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! Most string operations in Rust act on UTF-8 strings. However, at times it</span>
<span class="doccomment">//! makes more sense to only consider the ASCII character set for a specific</span>
<span class="doccomment">//! operation.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! The [`AsciiExt`] trait provides methods that allow for character</span>
<span class="doccomment">//! operations that only act on the ASCII subset and leave non-ASCII characters</span>
<span class="doccomment">//! alone.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! The [`escape_default`] function provides an iterator over the bytes of an</span>
<span class="doccomment">//! escaped version of the character given.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! [`AsciiExt`]: trait.AsciiExt.html</span>
<span class="doccomment">//! [`escape_default`]: fn.escape_default.html</span>
<span class="attribute">#![<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">use</span> <span class="ident">fmt</span>;
<span class="kw">use</span> <span class="ident">ops</span>::<span class="ident">Range</span>;
<span class="kw">use</span> <span class="ident">iter</span>::<span class="ident">FusedIterator</span>;
<span class="doccomment">/// Extension methods for ASCII-subset only operations.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Be aware that operations on seemingly non-ASCII characters can sometimes</span>
<span class="doccomment">/// have unexpected results. Consider this example:</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use std::ascii::AsciiExt;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(AsciiExt::to_ascii_uppercase("café"), "CAFÉ");</span>
<span class="doccomment">/// assert_eq!(AsciiExt::to_ascii_uppercase("café"), "CAFé");</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">///</span>
<span class="doccomment">/// In the first example, the lowercased string is represented `"cafe\u{301}"`</span>
<span class="doccomment">/// (the last character is an acute accent [combining character]). Unlike the</span>
<span class="doccomment">/// other characters in the string, the combining character will not get mapped</span>
<span class="doccomment">/// to an uppercase variant, resulting in `"CAFE\u{301}"`. In the second</span>
<span class="doccomment">/// example, the lowercased string is represented `"caf\u{e9}"` (the last</span>
<span class="doccomment">/// character is a single Unicode character representing an 'e' with an acute</span>
<span class="doccomment">/// accent). Since the last character is defined outside the scope of ASCII,</span>
<span class="doccomment">/// it will not get mapped to an uppercase variant, resulting in `"CAF\u{e9}"`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [combining character]: https://en.wikipedia.org/wiki/Combining_character</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">AsciiExt</span> {
<span class="doccomment">/// Container type for copied ASCII characters.</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">type</span> <span class="ident">Owned</span>;
<span class="doccomment">/// Checks if the value is within the ASCII range.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span>;
<span class="doccomment">/// Makes a copy of the value in its ASCII upper case equivalent.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z',</span>
<span class="doccomment">/// but non-ASCII letters are unchanged.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To uppercase the value in-place, use [`make_ascii_uppercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To uppercase ASCII characters in addition to non-ASCII characters, use</span>
<span class="doccomment">/// [`str::to_uppercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`make_ascii_uppercase`]: #tymethod.make_ascii_uppercase</span>
<span class="doccomment">/// [`str::to_uppercase`]: ../primitive.str.html#method.to_uppercase</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">to_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">Owned</span>;
<span class="doccomment">/// Makes a copy of the value in its ASCII lower case equivalent.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z',</span>
<span class="doccomment">/// but non-ASCII letters are unchanged.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To lowercase the value in-place, use [`make_ascii_lowercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To lowercase ASCII characters in addition to non-ASCII characters, use</span>
<span class="doccomment">/// [`str::to_lowercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`make_ascii_lowercase`]: #tymethod.make_ascii_lowercase</span>
<span class="doccomment">/// [`str::to_lowercase`]: ../primitive.str.html#method.to_lowercase</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">to_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">Owned</span>;
<span class="doccomment">/// Checks that two values are an ASCII case-insensitive match.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Same as `to_ascii_lowercase(a) == to_ascii_lowercase(b)`,</span>
<span class="doccomment">/// but without allocating and copying temporaries.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">eq_ignore_ascii_case</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="self">Self</span>) <span class="op">-></span> <span class="ident">bool</span>;
<span class="doccomment">/// Converts this type to its ASCII upper case equivalent in-place.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z',</span>
<span class="doccomment">/// but non-ASCII letters are unchanged.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To return a new uppercased value without modifying the existing one, use</span>
<span class="doccomment">/// [`to_ascii_uppercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`to_ascii_uppercase`]: #tymethod.to_ascii_uppercase</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">make_ascii_uppercase</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>);
<span class="doccomment">/// Converts this type to its ASCII lower case equivalent in-place.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z',</span>
<span class="doccomment">/// but non-ASCII letters are unchanged.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To return a new lowercased value without modifying the existing one, use</span>
<span class="doccomment">/// [`to_ascii_lowercase`].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`to_ascii_lowercase`]: #tymethod.to_ascii_lowercase</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span>
<span class="kw">fn</span> <span class="ident">make_ascii_lowercase</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>);
<span class="doccomment">/// Checks if the value is an ASCII alphabetic character:</span>
<span class="doccomment">/// U+0041 'A' ... U+005A 'Z' or U+0061 'a' ... U+007A 'z'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII alphabetic.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphabetic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII uppercase character:</span>
<span class="doccomment">/// U+0041 'A' ... U+005A 'Z'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII uppercase.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII lowercase character:</span>
<span class="doccomment">/// U+0061 'a' ... U+007A 'z'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII lowercase.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII alphanumeric character:</span>
<span class="doccomment">/// U+0041 'A' ... U+005A 'Z', U+0061 'a' ... U+007A 'z', or</span>
<span class="doccomment">/// U+0030 '0' ... U+0039 '9'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII alphanumeric.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphanumeric</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII decimal digit:</span>
<span class="doccomment">/// U+0030 '0' ... U+0039 '9'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII digits.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_digit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII hexadecimal digit:</span>
<span class="doccomment">/// U+0030 '0' ... U+0039 '9', U+0041 'A' ... U+0046 'F', or</span>
<span class="doccomment">/// U+0061 'a' ... U+0066 'f'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII hex digits.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_hexdigit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII punctuation character:</span>
<span class="doccomment">///</span>
<span class="doccomment">/// U+0021 ... U+002F `! " # $ % & ' ( ) * + , - . /`</span>
<span class="doccomment">/// U+003A ... U+0040 `: ; < = > ? @`</span>
<span class="doccomment">/// U+005B ... U+0060 ``[ \\ ] ^ _ ` ``</span>
<span class="doccomment">/// U+007B ... U+007E `{ | } ~`</span>
<span class="doccomment">///</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII punctuation.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_punctuation</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII graphic character:</span>
<span class="doccomment">/// U+0021 '@' ... U+007E '~'.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII graphic characters.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_graphic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII whitespace character:</span>
<span class="doccomment">/// U+0020 SPACE, U+0009 HORIZONTAL TAB, U+000A LINE FEED,</span>
<span class="doccomment">/// U+000C FORM FEED, or U+000D CARRIAGE RETURN.</span>
<span class="doccomment">/// For strings, true if all characters in the string are</span>
<span class="doccomment">/// ASCII whitespace.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Rust uses the WhatWG Infra Standard's [definition of ASCII</span>
<span class="doccomment">/// whitespace][infra-aw]. There are several other definitions in</span>
<span class="doccomment">/// wide use. For instance, [the POSIX locale][pct] includes</span>
<span class="doccomment">/// U+000B VERTICAL TAB as well as all the above characters,</span>
<span class="doccomment">/// but—from the very same specification—[the default rule for</span>
<span class="doccomment">/// "field splitting" in the Bourne shell][bfs] considers *only*</span>
<span class="doccomment">/// SPACE, HORIZONTAL TAB, and LINE FEED as whitespace.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// If you are writing a program that will process an existing</span>
<span class="doccomment">/// file format, check what that format's definition of whitespace is</span>
<span class="doccomment">/// before using this function.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [infra-aw]: https://infra.spec.whatwg.org/#ascii-whitespace</span>
<span class="doccomment">/// [pct]: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html#tag_07_03_01</span>
<span class="doccomment">/// [bfs]: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_05</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_whitespace</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
<span class="doccomment">/// Checks if the value is an ASCII control character:</span>
<span class="doccomment">/// U+0000 NUL ... U+001F UNIT SEPARATOR, or U+007F DELETE.</span>
<span class="doccomment">/// Note that most ASCII whitespace characters are control</span>
<span class="doccomment">/// characters, but SPACE is not.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Note</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method will be deprecated in favor of the identically-named</span>
<span class="doccomment">/// inherent methods on `u8`, `char`, `[u8]` and `str`.</span>
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"ascii_ctype"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"39658"</span>)]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_control</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="macro">unimplemented</span><span class="macro">!</span>(); }
}
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">delegating_ascii_methods</span> {
() <span class="op">=></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">Owned</span> { <span class="self">self</span>.<span class="ident">to_ascii_uppercase</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">Owned</span> { <span class="self">self</span>.<span class="ident">to_ascii_lowercase</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">eq_ignore_ascii_case</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">o</span>: <span class="kw-2">&</span><span class="self">Self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="ident">o</span>) }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">make_ascii_uppercase</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { <span class="self">self</span>.<span class="ident">make_ascii_uppercase</span>(); }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">make_ascii_lowercase</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { <span class="self">self</span>.<span class="ident">make_ascii_lowercase</span>(); }
}
}
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">delegating_ascii_ctype_methods</span> {
() <span class="op">=></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphabetic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_alphabetic</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_uppercase</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_lowercase</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphanumeric</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_alphanumeric</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_digit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_digit</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_hexdigit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_hexdigit</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_punctuation</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_punctuation</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_graphic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_graphic</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_whitespace</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_whitespace</span>() }
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_control</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">is_ascii_control</span>() }
}
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">AsciiExt</span> <span class="kw">for</span> <span class="ident">u8</span> {
<span class="kw">type</span> <span class="ident">Owned</span> <span class="op">=</span> <span class="ident">u8</span>;
<span class="macro">delegating_ascii_methods</span><span class="macro">!</span>();
<span class="macro">delegating_ascii_ctype_methods</span><span class="macro">!</span>();
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">AsciiExt</span> <span class="kw">for</span> <span class="ident">char</span> {
<span class="kw">type</span> <span class="ident">Owned</span> <span class="op">=</span> <span class="ident">char</span>;
<span class="macro">delegating_ascii_methods</span><span class="macro">!</span>();
<span class="macro">delegating_ascii_ctype_methods</span><span class="macro">!</span>();
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">AsciiExt</span> <span class="kw">for</span> [<span class="ident">u8</span>] {
<span class="kw">type</span> <span class="ident">Owned</span> <span class="op">=</span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>;
<span class="macro">delegating_ascii_methods</span><span class="macro">!</span>();
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphabetic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_alphabetic</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_uppercase</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_lowercase</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphanumeric</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_alphanumeric</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_digit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_digit</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_hexdigit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_hexdigit</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_punctuation</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_punctuation</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_graphic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_graphic</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_whitespace</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_whitespace</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_control</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_control</span>())
}
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">AsciiExt</span> <span class="kw">for</span> <span class="ident">str</span> {
<span class="kw">type</span> <span class="ident">Owned</span> <span class="op">=</span> <span class="ident">String</span>;
<span class="macro">delegating_ascii_methods</span><span class="macro">!</span>();
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphabetic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_alphabetic</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_uppercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_uppercase</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_lowercase</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_lowercase</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_alphanumeric</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_alphanumeric</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_digit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_digit</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_hexdigit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_hexdigit</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_punctuation</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_punctuation</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_graphic</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_graphic</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_whitespace</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_whitespace</span>())
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_ascii_control</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii_control</span>())
}
}
<span class="doccomment">/// An iterator over the escaped version of a byte.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This `struct` is created by the [`escape_default`] function. See its</span>
<span class="doccomment">/// documentation for more.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`escape_default`]: fn.escape_default.html</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">EscapeDefault</span> {
<span class="ident">range</span>: <span class="ident">Range</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span>,
<span class="ident">data</span>: [<span class="ident">u8</span>; <span class="number">4</span>],
}
<span class="doccomment">/// Returns an iterator that produces an escaped version of a `u8`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// The default is chosen with a bias toward producing literals that are</span>
<span class="doccomment">/// legal in a variety of languages, including C++11 and similar C-family</span>
<span class="doccomment">/// languages. The exact rules are:</span>
<span class="doccomment">///</span>
<span class="doccomment">/// - Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively.</span>
<span class="doccomment">/// - Single-quote, double-quote and backslash chars are backslash-escaped.</span>
<span class="doccomment">/// - Any other chars in the range [0x20,0x7e] are not escaped.</span>
<span class="doccomment">/// - Any other chars are given hex escapes of the form '\xNN'.</span>
<span class="doccomment">/// - Unicode escapes are never generated by this function.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Examples</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use std::ascii;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let escaped = ascii::escape_default(b'0').next().unwrap();</span>
<span class="doccomment">/// assert_eq!(b'0', escaped);</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\t');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b't', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\r');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'r', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\n');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'n', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\'');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'\'', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'"');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'"', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\\');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">///</span>
<span class="doccomment">/// let mut escaped = ascii::escape_default(b'\x9d');</span>
<span class="doccomment">///</span>
<span class="doccomment">/// assert_eq!(b'\\', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'x', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'9', escaped.next().unwrap());</span>
<span class="doccomment">/// assert_eq!(b'd', escaped.next().unwrap());</span>
<span class="doccomment">/// ```</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">escape_default</span>(<span class="ident">c</span>: <span class="ident">u8</span>) <span class="op">-></span> <span class="ident">EscapeDefault</span> {
<span class="kw">let</span> (<span class="ident">data</span>, <span class="ident">len</span>) <span class="op">=</span> <span class="kw">match</span> <span class="ident">c</span> {
<span class="string">b'\t'</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b't'</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'\r'</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'r'</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'\n'</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'n'</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'\\'</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'\\'</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'\''</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'\''</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'"'</span> <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'"'</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>),
<span class="string">b'\x20'</span> ... <span class="string">b'\x7e'</span> <span class="op">=></span> ([<span class="ident">c</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>], <span class="number">1</span>),
_ <span class="op">=></span> ([<span class="string">b'\\'</span>, <span class="string">b'x'</span>, <span class="ident">hexify</span>(<span class="ident">c</span> <span class="op">>></span> <span class="number">4</span>), <span class="ident">hexify</span>(<span class="ident">c</span> <span class="op">&</span> <span class="number">0xf</span>)], <span class="number">4</span>),
};
<span class="kw">return</span> <span class="ident">EscapeDefault</span> { <span class="ident">range</span>: (<span class="number">0</span>.. <span class="ident">len</span>), <span class="ident">data</span>: <span class="ident">data</span> };
<span class="kw">fn</span> <span class="ident">hexify</span>(<span class="ident">b</span>: <span class="ident">u8</span>) <span class="op">-></span> <span class="ident">u8</span> {
<span class="kw">match</span> <span class="ident">b</span> {
<span class="number">0</span> ... <span class="number">9</span> <span class="op">=></span> <span class="string">b'0'</span> <span class="op">+</span> <span class="ident">b</span>,
_ <span class="op">=></span> <span class="string">b'a'</span> <span class="op">+</span> <span class="ident">b</span> <span class="op">-</span> <span class="number">10</span>,
}
}
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">Iterator</span> <span class="kw">for</span> <span class="ident">EscapeDefault</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="ident">u8</span>;
<span class="kw">fn</span> <span class="ident">next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">range</span>.<span class="ident">next</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">data</span>[<span class="ident">i</span>]) }
<span class="kw">fn</span> <span class="ident">size_hint</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> (<span class="ident">usize</span>, <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span>) { <span class="self">self</span>.<span class="ident">range</span>.<span class="ident">size_hint</span>() }
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">DoubleEndedIterator</span> <span class="kw">for</span> <span class="ident">EscapeDefault</span> {
<span class="kw">fn</span> <span class="ident">next_back</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">range</span>.<span class="ident">next_back</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">data</span>[<span class="ident">i</span>])
}
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">ExactSizeIterator</span> <span class="kw">for</span> <span class="ident">EscapeDefault</span> {}
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"fused"</span>, <span class="ident">issue</span> <span class="op">=</span> <span class="string">"35602"</span>)]</span>
<span class="kw">impl</span> <span class="ident">FusedIterator</span> <span class="kw">for</span> <span class="ident">EscapeDefault</span> {}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"std_debug"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.16.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">EscapeDefault</span> {
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="ident">f</span>.<span class="ident">pad</span>(<span class="string">"EscapeDefault { .. }"</span>)
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="kw">mod</span> <span class="ident">tests</span> {
<span class="doccomment">//! Note that most of these tests are not testing `AsciiExt` methods, but</span>
<span class="doccomment">//! test inherent ascii methods of char, u8, str and [u8]. `AsciiExt` is</span>
<span class="doccomment">//! just using those methods, though.</span>
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">AsciiExt</span>;
<span class="kw">use</span> <span class="ident">char</span>::<span class="ident">from_u32</span>;
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii</span>() {
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">b""</span>.<span class="ident">is_ascii</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">b"banana\0\x7F"</span>.<span class="ident">is_ascii</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">b"banana\0\x7F"</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii</span>()));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">b"Vi\xe1\xbb\x87t Nam"</span>.<span class="ident">is_ascii</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">b"Vi\xe1\xbb\x87t Nam"</span>.<span class="ident">iter</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii</span>()));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">b"\xe1\xbb\x87"</span>.<span class="ident">iter</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">is_ascii</span>()));
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">""</span>.<span class="ident">is_ascii</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">"banana\0\u{7F}"</span>.<span class="ident">is_ascii</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">"banana\0\u{7F}"</span>.<span class="ident">chars</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span>.<span class="ident">is_ascii</span>()));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"ประเทศไทย中华Việt Nam"</span>.<span class="ident">chars</span>().<span class="ident">all</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span>.<span class="ident">is_ascii</span>()));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"ประเทศไทย中华ệ "</span>.<span class="ident">chars</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span>.<span class="ident">is_ascii</span>()));
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_to_ascii_uppercase</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"url()URL()uRl()ürl"</span>.<span class="ident">to_ascii_uppercase</span>(), <span class="string">"URL()URL()URL()üRL"</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"hıKß"</span>.<span class="ident">to_ascii_uppercase</span>(), <span class="string">"HıKß"</span>);
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">501</span> {
<span class="kw">let</span> <span class="ident">upper</span> <span class="op">=</span> <span class="kw">if</span> <span class="string">'a'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op"><=</span> <span class="ident">i</span> <span class="op">&&</span> <span class="ident">i</span> <span class="op"><=</span> <span class="string">'z'</span> <span class="kw">as</span> <span class="ident">u32</span> { <span class="ident">i</span> <span class="op">+</span> <span class="string">'A'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op">-</span> <span class="string">'a'</span> <span class="kw">as</span> <span class="ident">u32</span> }
<span class="kw">else</span> { <span class="ident">i</span> };
<span class="macro">assert_eq</span><span class="macro">!</span>((<span class="ident">from_u32</span>(<span class="ident">i</span>).<span class="ident">unwrap</span>()).<span class="ident">to_string</span>().<span class="ident">to_ascii_uppercase</span>(),
(<span class="ident">from_u32</span>(<span class="ident">upper</span>).<span class="ident">unwrap</span>()).<span class="ident">to_string</span>());
}
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_to_ascii_lowercase</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"url()URL()uRl()Ürl"</span>.<span class="ident">to_ascii_lowercase</span>(), <span class="string">"url()url()url()Ürl"</span>);
<span class="comment">// Dotted capital I, Kelvin sign, Sharp S.</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"HİKß"</span>.<span class="ident">to_ascii_lowercase</span>(), <span class="string">"hİKß"</span>);
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">501</span> {
<span class="kw">let</span> <span class="ident">lower</span> <span class="op">=</span> <span class="kw">if</span> <span class="string">'A'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op"><=</span> <span class="ident">i</span> <span class="op">&&</span> <span class="ident">i</span> <span class="op"><=</span> <span class="string">'Z'</span> <span class="kw">as</span> <span class="ident">u32</span> { <span class="ident">i</span> <span class="op">+</span> <span class="string">'a'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op">-</span> <span class="string">'A'</span> <span class="kw">as</span> <span class="ident">u32</span> }
<span class="kw">else</span> { <span class="ident">i</span> };
<span class="macro">assert_eq</span><span class="macro">!</span>((<span class="ident">from_u32</span>(<span class="ident">i</span>).<span class="ident">unwrap</span>()).<span class="ident">to_string</span>().<span class="ident">to_ascii_lowercase</span>(),
(<span class="ident">from_u32</span>(<span class="ident">lower</span>).<span class="ident">unwrap</span>()).<span class="ident">to_string</span>());
}
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_make_ascii_lower_case</span>() {
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">test</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">from</span>: <span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">to</span>: <span class="ident">expr</span>) <span class="op">=></span> {
{
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">x</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">from</span>;
<span class="ident">x</span>.<span class="ident">make_ascii_lowercase</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">to</span>);
}
}
}
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'A'</span>, <span class="string">b'a'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'a'</span>, <span class="string">b'a'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'!'</span>, <span class="string">b'!'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'A'</span>, <span class="string">'a'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'À'</span>, <span class="string">'À'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'a'</span>, <span class="string">'a'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'!'</span>, <span class="string">'!'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b"H\xc3\x89"</span>.<span class="ident">to_vec</span>(), <span class="string">b"h\xc3\x89"</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">"HİKß"</span>.<span class="ident">to_string</span>(), <span class="string">"hİKß"</span>);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_make_ascii_upper_case</span>() {
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">test</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">from</span>: <span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">to</span>: <span class="ident">expr</span>) <span class="op">=></span> {
{
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">x</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">from</span>;
<span class="ident">x</span>.<span class="ident">make_ascii_uppercase</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">to</span>);
}
}
}
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'a'</span>, <span class="string">b'A'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'A'</span>, <span class="string">b'A'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b'!'</span>, <span class="string">b'!'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'a'</span>, <span class="string">'A'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'à'</span>, <span class="string">'à'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'A'</span>, <span class="string">'A'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">'!'</span>, <span class="string">'!'</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">b"h\xc3\xa9"</span>.<span class="ident">to_vec</span>(), <span class="string">b"H\xc3\xa9"</span>);
<span class="macro">test</span><span class="macro">!</span>(<span class="string">"hıKß"</span>.<span class="ident">to_string</span>(), <span class="string">"HıKß"</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">x</span> <span class="op">=</span> <span class="string">"Hello"</span>.<span class="ident">to_string</span>();
<span class="ident">x</span>[..<span class="number">3</span>].<span class="ident">make_ascii_uppercase</span>(); <span class="comment">// Test IndexMut on String.</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="string">"HELlo"</span>)
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_eq_ignore_ascii_case</span>() {
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">"url()URL()uRl()Ürl"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"url()url()url()Ürl"</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"Ürl"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"ürl"</span>));
<span class="comment">// Dotted capital I, Kelvin sign, Sharp S.</span>
<span class="macro">assert</span><span class="macro">!</span>(<span class="string">"HİKß"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"hİKß"</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"İ"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"i"</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"K"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"k"</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="string">"ß"</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"s"</span>));
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">501</span> {
<span class="kw">let</span> <span class="ident">lower</span> <span class="op">=</span> <span class="kw">if</span> <span class="string">'A'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op"><=</span> <span class="ident">i</span> <span class="op">&&</span> <span class="ident">i</span> <span class="op"><=</span> <span class="string">'Z'</span> <span class="kw">as</span> <span class="ident">u32</span> { <span class="ident">i</span> <span class="op">+</span> <span class="string">'a'</span> <span class="kw">as</span> <span class="ident">u32</span> <span class="op">-</span> <span class="string">'A'</span> <span class="kw">as</span> <span class="ident">u32</span> }
<span class="kw">else</span> { <span class="ident">i</span> };
<span class="macro">assert</span><span class="macro">!</span>((<span class="ident">from_u32</span>(<span class="ident">i</span>).<span class="ident">unwrap</span>()).<span class="ident">to_string</span>().<span class="ident">eq_ignore_ascii_case</span>(
<span class="kw-2">&</span><span class="ident">from_u32</span>(<span class="ident">lower</span>).<span class="ident">unwrap</span>().<span class="ident">to_string</span>()));
}
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">inference_works</span>() {
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="string">"a"</span>.<span class="ident">to_string</span>();
<span class="ident">x</span>.<span class="ident">eq_ignore_ascii_case</span>(<span class="string">"A"</span>);
}
<span class="comment">// Shorthands used by the is_ascii_* tests.</span>
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">assert_all</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>:<span class="ident">ident</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>:<span class="ident">tt</span>),<span class="op">+</span>) <span class="op">=></span> {{
$(
<span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="ident">chars</span>() {
<span class="kw">if</span> <span class="op">!</span><span class="ident">b</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>() {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"expected {}({}) but it isn't"</span>,
<span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>), <span class="ident">b</span>);
}
}
<span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="ident">as_bytes</span>().<span class="ident">iter</span>() {
<span class="kw">if</span> <span class="op">!</span><span class="ident">b</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>() {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"expected {}(0x{:02x})) but it isn't"</span>,
<span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>), <span class="ident">b</span>);
}
}
<span class="macro">assert</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="ident">as_bytes</span>().<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>());
)<span class="op">+</span>
}};
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>:<span class="ident">ident</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>:<span class="ident">tt</span>),<span class="op">+</span>,) <span class="op">=></span> (<span class="macro">assert_all</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>,$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>),<span class="op">+</span>))
}
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">assert_none</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>:<span class="ident">ident</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>:<span class="ident">tt</span>),<span class="op">+</span>) <span class="op">=></span> {{
$(
<span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="ident">chars</span>() {
<span class="kw">if</span> <span class="ident">b</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>() {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"expected not-{}({}) but it is"</span>,
<span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>), <span class="ident">b</span>);
}
}
<span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>.<span class="ident">as_bytes</span>().<span class="ident">iter</span>() {
<span class="kw">if</span> <span class="ident">b</span>.<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>() {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"expected not-{}(0x{:02x})) but it is"</span>,
<span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>), <span class="ident">b</span>);
}
}
)<span class="op">*</span>
}};
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>:<span class="ident">ident</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>:<span class="ident">tt</span>),<span class="op">+</span>,) <span class="op">=></span> (<span class="macro">assert_none</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">what</span>,$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">str</span>),<span class="op">+</span>))
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_alphabetic</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_alphabetic</span>,
<span class="string">""</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_alphabetic</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_uppercase</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_uppercase</span>,
<span class="string">""</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_uppercase</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_lowercase</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_lowercase</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_lowercase</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_alphanumeric</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_alphanumeric</span>,
<span class="string">""</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_alphanumeric</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_digit</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_digit</span>,
<span class="string">""</span>,
<span class="string">"0123456789"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_digit</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_hexdigit</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_hexdigit</span>,
<span class="string">""</span>,
<span class="string">"0123456789"</span>,
<span class="string">"abcdefABCDEF"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_hexdigit</span>,
<span class="string">"ghijklmnopqrstuvwxyz"</span>,
<span class="string">"GHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_punctuation</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_punctuation</span>,
<span class="string">""</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_punctuation</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_graphic</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_graphic</span>,
<span class="string">""</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_graphic</span>,
<span class="string">" \t\n\x0c\r"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_whitespace</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_whitespace</span>,
<span class="string">""</span>,
<span class="string">" \t\n\x0c\r"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_whitespace</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x0b\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_is_ascii_control</span>() {
<span class="macro">assert_all</span><span class="macro">!</span>(<span class="ident">is_ascii_control</span>,
<span class="string">""</span>,
<span class="string">"\x00\x01\x02\x03\x04\x05\x06\x07"</span>,
<span class="string">"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>,
<span class="string">"\x10\x11\x12\x13\x14\x15\x16\x17"</span>,
<span class="string">"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"</span>,
<span class="string">"\x7f"</span>,
);
<span class="macro">assert_none</span><span class="macro">!</span>(<span class="ident">is_ascii_control</span>,
<span class="string">"abcdefghijklmnopqrstuvwxyz"</span>,
<span class="string">"ABCDEFGHIJKLMNOQPRSTUVWXYZ"</span>,
<span class="string">"0123456789"</span>,
<span class="string">"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"</span>,
<span class="string">" "</span>,
);
}
}
</pre>
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