How to distinguish whether a word is half-width or full-width?
<p>Recently I've been dealing with texts with mixed languages, including Chinese, English, and even some emoticons.</p>

<p>I've been searching for this issue quite a lot, but the only thing I can find is "to replace full-width characters with half-width characters" rather than telling you how to determine whether the character is a half- or full-width word.</p>

<p>So, my question is:</p>

<p><strong>Is it possible to tell whether a word is half-width or full-width?</strong></p>
