mentat/unicode_width/trait.UnicodeWidthChar.html
2018-08-22 17:04:13 +00:00

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<p class='location'>Trait UnicodeWidthChar</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.width">width</a><a href="#tymethod.width_cjk">width_cjk</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>unicode_width</a></p><script>window.sidebarCurrent = {name: 'UnicodeWidthChar', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>unicode_width</a>::<wbr><a class="trait" href=''>UnicodeWidthChar</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust trait'>pub trait UnicodeWidthChar {
fn <a href='#tymethod.width' class='fnname'>width</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;;
<div class='item-spacer'></div> fn <a href='#tymethod.width_cjk' class='fnname'>width_cjk</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;;
}</pre><div class='docblock'><p>Methods for determining displayed width of Unicode characters.</p>
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<h3 id='tymethod.width' class='method'><span id='width.v' class='invisible'><code>fn <a href='#tymethod.width' class='fnname'>width</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code></span></h3><div class='docblock'><p>Returns the character's displayed width in columns, or <code>None</code> if the
character is a control character other than <code>'\x00'</code>.</p>
<p>This function treats characters in the Ambiguous category according
to <a href="http://www.unicode.org/reports/tr11/">Unicode Standard Annex #11</a>
as 1 column wide. This is consistent with the recommendations for non-CJK
contexts, or when the context cannot be reliably determined.</p>
</div><h3 id='tymethod.width_cjk' class='method'><span id='width_cjk.v' class='invisible'><code>fn <a href='#tymethod.width_cjk' class='fnname'>width_cjk</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code></span></h3><div class='docblock'><p>Returns the character's displayed width in columns, or <code>None</code> if the
character is a control character other than <code>'\x00'</code>.</p>
<p>This function treats characters in the Ambiguous category according
to <a href="http://www.unicode.org/reports/tr11/">Unicode Standard Annex #11</a>
as 2 columns wide. This is consistent with the recommendations for
CJK contexts.</p>
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<li><div class='out-of-band'><a class='srclink' href='../src/unicode_width/lib.rs.html#90-96' title='goto source code'>[src]</a></div><code>impl UnicodeWidthChar for char</code></li>
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