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RegexValidation Protocol Reference
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<section class="section">
<h1>RegexValidation</h1>
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<div class="language">
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">protocol</span> <span class="kt">RegexValidation</span><span class="p">:</span> <span class="kt"><a href="../Protocols/Validation.html">Validation</a></span> <span class="k">where</span> <span class="kt">Supported</span> <span class="o">==</span> <span class="kt">String</span></code></pre>
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<p>Checks that a <code>String</code> value contains a match to a regular expression pattern somewhere in it.</p>
<pre class="highlight swift"><code><span class="kd">struct</span> <span class="kt">USPhoneNumber</span><span class="p">:</span> <span class="kt">RegexValidation</span> <span class="p">{</span>
<span class="kd">static</span> <span class="k">let</span> <span class="nv">pattern</span> <span class="o">=</span> <span class="s">"1?-?</span><span class="se">\\</span><span class="s">(?[0-9]{3}</span><span class="se">\\</span><span class="s">)?-?[0-9]{3}-?[0-9]{4}"</span>
<span class="p">}</span>
</code></pre>
<p>If you want to make sure the RegEx pattern matches the whole string, use the <code>^</code> and <code>$</code> operators at the start and end of the pattern.</p>
<p>If the string passed in to be validated does not contain a match for the RegEx pattern, <code>ValidationError.noRegexMatch</code> will be thrown.</p>
</section>
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<code>
<a name="/s:10Validation05RegexA0P7patternSSvpZ"></a>
<a name="//apple_ref/swift/Variable/pattern" class="dashAnchor"></a>
<a class="token" href="#/s:10Validation05RegexA0P7patternSSvpZ">pattern</a>
</code>
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<p>The regular expression pattern to match values against.</p>
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<h4>Declaration</h4>
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<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">static</span> <span class="k">var</span> <span class="nv">pattern</span><span class="p">:</span> <span class="kt">String</span></code></pre>
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<code>
<a name="/s:10Validation05RegexA0PAAE8validateyySSKFZ"></a>
<a name="//apple_ref/swift/Method/validate(_:)" class="dashAnchor"></a>
<a class="token" href="#/s:10Validation05RegexA0PAAE8validateyySSKFZ">validate(_:)</a>
</code>
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Extension method
</span>
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<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>See <code><a href="../Protocols/Validation.html#/s:10ValidationAAP8validateyy9SupportedQzKFZ">Validation.validate(_:)</a></code>.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">static</span> <span class="kd">func</span> <span class="nf">validate</span><span class="p">(</span><span class="n">_</span> <span class="nv">value</span><span class="p">:</span> <span class="kt">String</span><span class="p">)</span><span class="k">throws</span></code></pre>
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