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 </pre><pre class="rust ">
 <span class="comment">// Copyright 2012-2015 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 &lt;LICENSE-APACHE or</span>
 <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0&gt; or the MIT license</span>
 <span class="comment">// &lt;LICENSE-MIT or http://opensource.org/licenses/MIT&gt;, 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">//! Iterators which split strings on Grapheme Cluster or Word boundaries, according</span>
 <span class="doccomment">//! to the [Unicode Standard Annex #29](http://www.unicode.org/reports/tr29/) rules.</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! ```rust</span>
 <span class="doccomment">//! extern crate unicode_segmentation;</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! use unicode_segmentation::UnicodeSegmentation;</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! fn main() {</span>
 <span class="doccomment">//!     let s = &quot;a̐éö̲\r\n&quot;;</span>
 <span class="doccomment">//!     let g = UnicodeSegmentation::graphemes(s, true).collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
 <span class="doccomment">//!     let b: &amp;[_] = &amp;[&quot;a̐&quot;, &quot;é&quot;, &quot;ö̲&quot;, &quot;\r\n&quot;];</span>
 <span class="doccomment">//!     assert_eq!(g, b);</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//!     let s = &quot;The quick (\&quot;brown\&quot;) fox can&#39;t jump 32.3 feet, right?&quot;;</span>
 <span class="doccomment">//!     let w = s.unicode_words().collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
 <span class="doccomment">//!     let b: &amp;[_] = &amp;[&quot;The&quot;, &quot;quick&quot;, &quot;brown&quot;, &quot;fox&quot;, &quot;can&#39;t&quot;, &quot;jump&quot;, &quot;32.3&quot;, &quot;feet&quot;, &quot;right&quot;];</span>
 <span class="doccomment">//!     assert_eq!(w, b);</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//!     let s = &quot;The quick (\&quot;brown\&quot;)  fox&quot;;</span>
 <span class="doccomment">//!     let w = s.split_word_bounds().collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
 <span class="doccomment">//!     let b: &amp;[_] = &amp;[&quot;The&quot;, &quot; &quot;, &quot;quick&quot;, &quot; &quot;, &quot;(&quot;, &quot;\&quot;&quot;, &quot;brown&quot;, &quot;\&quot;&quot;, &quot;)&quot;, &quot; &quot;, &quot; &quot;, &quot;fox&quot;];</span>
 <span class="doccomment">//!     assert_eq!(w, b);</span>
 <span class="doccomment">//! }</span>
 <span class="doccomment">//! ```</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! # no_std</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! unicode-segmentation does not depend on libstd, so it can be used in crates</span>
 <span class="doccomment">//! with the `#![no_std]` attribute.</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! # crates.io</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! You can use this package in your project by adding the following</span>
 <span class="doccomment">//! to your `Cargo.toml`:</span>
 <span class="doccomment">//!</span>
 <span class="doccomment">//! ```toml</span>
 <span class="doccomment">//! [dependencies]</span>
 <span class="doccomment">//! unicode-segmentation = &quot;1.1.0&quot;</span>
 <span class="doccomment">//! ```</span>

 <span class="attribute">#<span class="op">!</span>[<span class="ident">deny</span>(<span class="ident">missing_docs</span>, <span class="ident">unsafe_code</span>)]</span>
 <span class="attribute">#<span class="op">!</span>[<span class="ident">doc</span>(<span class="ident">html_logo_url</span> <span class="op">=</span> <span class="string">&quot;https://unicode-rs.github.io/unicode-rs_sm.png&quot;</span>,
        <span class="ident">html_favicon_url</span> <span class="op">=</span> <span class="string">&quot;https://unicode-rs.github.io/unicode-rs_sm.png&quot;</span>)]</span>

 <span class="attribute">#<span class="op">!</span>[<span class="ident">no_std</span>]</span>

 <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
 <span class="attribute">#[<span class="ident">macro_use</span>]</span>
 <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">std</span>;

 <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
 <span class="attribute">#[<span class="ident">macro_use</span>]</span>
 <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">quickcheck</span>;

 <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">grapheme</span>::{<span class="ident">Graphemes</span>, <span class="ident">GraphemeIndices</span>};
 <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">grapheme</span>::{<span class="ident">GraphemeCursor</span>, <span class="ident">GraphemeIncomplete</span>};
 <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">tables</span>::<span class="ident">UNICODE_VERSION</span>;
 <span class="kw">pub</span> <span class="kw">use</span> <span class="ident">word</span>::{<span class="ident">UWordBounds</span>, <span class="ident">UWordBoundIndices</span>, <span class="ident">UnicodeWords</span>};

 <span class="kw">mod</span> <span class="ident">grapheme</span>;
 <span class="kw">mod</span> <span class="ident">tables</span>;
 <span class="kw">mod</span> <span class="ident">word</span>;

 <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
 <span class="kw">mod</span> <span class="ident">test</span>;
 <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
 <span class="kw">mod</span> <span class="ident">testdata</span>;

 <span class="doccomment">/// Methods for segmenting strings according to</span>
 <span class="doccomment">/// [Unicode Standard Annex #29](http://www.unicode.org/reports/tr29/).</span>
 <span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">UnicodeSegmentation</span> {
     <span class="doccomment">/// Returns an iterator over the [grapheme clusters][graphemes] of `self`.</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// [graphemes]: http://www.unicode.org/reports/tr29/#Grapheme_Cluster_Boundaries</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// If `is_extended` is true, the iterator is over the</span>
     <span class="doccomment">/// *extended grapheme clusters*;</span>
     <span class="doccomment">/// otherwise, the iterator is over the *legacy grapheme clusters*.</span>
     <span class="doccomment">/// [UAX#29](http://www.unicode.org/reports/tr29/#Grapheme_Cluster_Boundaries)</span>
     <span class="doccomment">/// recommends extended grapheme cluster boundaries for general processing.</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// # Examples</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// ```</span>
     <span class="doccomment">/// # use self::unicode_segmentation::UnicodeSegmentation;</span>
     <span class="doccomment">/// let gr1 = UnicodeSegmentation::graphemes(&quot;a\u{310}e\u{301}o\u{308}\u{332}&quot;, true)</span>
     <span class="doccomment">///           .collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[&quot;a\u{310}&quot;, &quot;e\u{301}&quot;, &quot;o\u{308}\u{332}&quot;];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;gr1[..], b);</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// let gr2 = UnicodeSegmentation::graphemes(&quot;a\r\nb🇷🇺🇸🇹&quot;, true).collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[&quot;a&quot;, &quot;\r\n&quot;, &quot;b&quot;, &quot;🇷🇺&quot;, &quot;🇸🇹&quot;];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;gr2[..], b);</span>
     <span class="doccomment">/// ```</span>
     <span class="kw">fn</span> <span class="ident">graphemes</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="self">self</span>, <span class="ident">is_extended</span>: <span class="ident">bool</span>) <span class="op">-&gt;</span> <span class="ident">Graphemes</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>;

     <span class="doccomment">/// Returns an iterator over the grapheme clusters of `self` and their</span>
     <span class="doccomment">/// byte offsets. See `graphemes()` for more information.</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// # Examples</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// ```</span>
     <span class="doccomment">/// # use self::unicode_segmentation::UnicodeSegmentation;</span>
     <span class="doccomment">/// let gr_inds = UnicodeSegmentation::grapheme_indices(&quot;a̐éö̲\r\n&quot;, true)</span>
     <span class="doccomment">///               .collect::&lt;Vec&lt;(usize, &amp;str)&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[(0, &quot;a̐&quot;), (3, &quot;é&quot;), (6, &quot;ö̲&quot;), (11, &quot;\r\n&quot;)];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;gr_inds[..], b);</span>
     <span class="doccomment">/// ```</span>
     <span class="kw">fn</span> <span class="ident">grapheme_indices</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="self">self</span>, <span class="ident">is_extended</span>: <span class="ident">bool</span>) <span class="op">-&gt;</span> <span class="ident">GraphemeIndices</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>;

     <span class="doccomment">/// Returns an iterator over the words of `self`, separated on</span>
     <span class="doccomment">/// [UAX#29 word boundaries](http://www.unicode.org/reports/tr29/#Word_Boundaries).</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// Here, &quot;words&quot; are just those substrings which, after splitting on</span>
     <span class="doccomment">/// UAX#29 word boundaries, contain any alphanumeric characters. That is, the</span>
     <span class="doccomment">/// substring must contain at least one character with the</span>
     <span class="doccomment">/// [Alphabetic](http://unicode.org/reports/tr44/#Alphabetic)</span>
     <span class="doccomment">/// property, or with</span>
     <span class="doccomment">/// [General_Category=Number](http://unicode.org/reports/tr44/#General_Category_Values).</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// # Example</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// ```</span>
     <span class="doccomment">/// # use self::unicode_segmentation::UnicodeSegmentation;</span>
     <span class="doccomment">/// let uws = &quot;The quick (\&quot;brown\&quot;) fox can&#39;t jump 32.3 feet, right?&quot;;</span>
     <span class="doccomment">/// let uw1 = uws.unicode_words().collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[&quot;The&quot;, &quot;quick&quot;, &quot;brown&quot;, &quot;fox&quot;, &quot;can&#39;t&quot;, &quot;jump&quot;, &quot;32.3&quot;, &quot;feet&quot;, &quot;right&quot;];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;uw1[..], b);</span>
     <span class="doccomment">/// ```</span>
     <span class="kw">fn</span> <span class="ident">unicode_words</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UnicodeWords</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>;

     <span class="doccomment">/// Returns an iterator over substrings of `self` separated on</span>
     <span class="doccomment">/// [UAX#29 word boundaries](http://www.unicode.org/reports/tr29/#Word_Boundaries).</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// The concatenation of the substrings returned by this function is just the original string.</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// # Example</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// ```</span>
     <span class="doccomment">/// # use self::unicode_segmentation::UnicodeSegmentation;</span>
     <span class="doccomment">/// let swu1 = &quot;The quick (\&quot;brown\&quot;)  fox&quot;.split_word_bounds().collect::&lt;Vec&lt;&amp;str&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[&quot;The&quot;, &quot; &quot;, &quot;quick&quot;, &quot; &quot;, &quot;(&quot;, &quot;\&quot;&quot;, &quot;brown&quot;, &quot;\&quot;&quot;, &quot;)&quot;, &quot; &quot;, &quot; &quot;, &quot;fox&quot;];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;swu1[..], b);</span>
     <span class="doccomment">/// ```</span>
     <span class="kw">fn</span> <span class="ident">split_word_bounds</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UWordBounds</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>;

     <span class="doccomment">/// Returns an iterator over substrings of `self`, split on UAX#29 word boundaries,</span>
     <span class="doccomment">/// and their offsets. See `split_word_bounds()` for more information.</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// # Example</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// ```</span>
     <span class="doccomment">/// # use self::unicode_segmentation::UnicodeSegmentation;</span>
     <span class="doccomment">/// let swi1 = &quot;Brr, it&#39;s 29.3°F!&quot;.split_word_bound_indices().collect::&lt;Vec&lt;(usize, &amp;str)&gt;&gt;();</span>
     <span class="doccomment">/// let b: &amp;[_] = &amp;[(0, &quot;Brr&quot;), (3, &quot;,&quot;), (4, &quot; &quot;), (5, &quot;it&#39;s&quot;), (9, &quot; &quot;), (10, &quot;29.3&quot;),</span>
     <span class="doccomment">///                 (14, &quot;°&quot;), (16, &quot;F&quot;), (17, &quot;!&quot;)];</span>
     <span class="doccomment">///</span>
     <span class="doccomment">/// assert_eq!(&amp;swi1[..], b);</span>
     <span class="doccomment">/// ```</span>
     <span class="kw">fn</span> <span class="ident">split_word_bound_indices</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UWordBoundIndices</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span>;
 }

 <span class="kw">impl</span> <span class="ident">UnicodeSegmentation</span> <span class="kw">for</span> <span class="ident">str</span> {
     <span class="attribute">#[<span class="ident">inline</span>]</span>
     <span class="kw">fn</span> <span class="ident">graphemes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">is_extended</span>: <span class="ident">bool</span>) <span class="op">-&gt;</span> <span class="ident">Graphemes</span> {
         <span class="ident">grapheme</span>::<span class="ident">new_graphemes</span>(<span class="self">self</span>, <span class="ident">is_extended</span>)
     }

     <span class="attribute">#[<span class="ident">inline</span>]</span>
     <span class="kw">fn</span> <span class="ident">grapheme_indices</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">is_extended</span>: <span class="ident">bool</span>) <span class="op">-&gt;</span> <span class="ident">GraphemeIndices</span> {
         <span class="ident">grapheme</span>::<span class="ident">new_grapheme_indices</span>(<span class="self">self</span>, <span class="ident">is_extended</span>)
     }

     <span class="attribute">#[<span class="ident">inline</span>]</span>
     <span class="kw">fn</span> <span class="ident">unicode_words</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UnicodeWords</span> {
         <span class="ident">word</span>::<span class="ident">new_unicode_words</span>(<span class="self">self</span>)
     }

     <span class="attribute">#[<span class="ident">inline</span>]</span>
     <span class="kw">fn</span> <span class="ident">split_word_bounds</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UWordBounds</span> {
         <span class="ident">word</span>::<span class="ident">new_word_bounds</span>(<span class="self">self</span>)
     }

     <span class="attribute">#[<span class="ident">inline</span>]</span>
     <span class="kw">fn</span> <span class="ident">split_word_bound_indices</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">UWordBoundIndices</span> {
         <span class="ident">word</span>::<span class="ident">new_word_bound_indices</span>(<span class="self">self</span>)
     }
 }
 </pre>
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