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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 {
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fn <a href='#tymethod.width' class='fnname'>width</a>(self) -> <a class='enum' href='https://doc.rust-lang.org/nightly/core/option/enum.Option.html' title='core::option::Option'>Option</a><<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>>;
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fn <a href='#tymethod.width_cjk' class='fnname'>width_cjk</a>(self) -> <a class='enum' href='https://doc.rust-lang.org/nightly/core/option/enum.Option.html' title='core::option::Option'>Option</a><<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>>;
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}</pre><div class='docblock'><p>Methods for determining displayed width of Unicode characters.</p>
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<h2 id='required-methods'>Required Methods</h2>
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<h3 id='tymethod.width' class='method stab '><code>fn <a href='#tymethod.width' class='fnname'>width</a>(self) -> <a class='enum' href='https://doc.rust-lang.org/nightly/core/option/enum.Option.html' title='core::option::Option'>Option</a><<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>></code></h3><div class='docblock'><p>Returns the character's displayed width in columns, or <code>None</code> if the
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character is a control character other than <code>'\x00'</code>.</p>
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<p>This function treats characters in the Ambiguous category according
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to <a href="http://www.unicode.org/reports/tr11/">Unicode Standard Annex #11</a>
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as 1 column wide. This is consistent with the recommendations for non-CJK
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contexts, or when the context cannot be reliably determined.</p>
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</div><h3 id='tymethod.width_cjk' class='method stab '><code>fn <a href='#tymethod.width_cjk' class='fnname'>width_cjk</a>(self) -> <a class='enum' href='https://doc.rust-lang.org/nightly/core/option/enum.Option.html' title='core::option::Option'>Option</a><<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>></code></h3><div class='docblock'><p>Returns the character's displayed width in columns, or <code>None</code> if the
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character is a control character other than <code>'\x00'</code>.</p>
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<p>This function treats characters in the Ambiguous category according
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to <a href="http://www.unicode.org/reports/tr11/">Unicode Standard Annex #11</a>
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as 2 columns wide. This is consistent with the recommendations for
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CJK contexts.</p>
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<h2 id='implementors'>Implementors</h2>
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<ul class='item-list' id='implementors-list'>
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<li><code>impl UnicodeWidthChar for <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.char.html'>char</a></code></li>
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