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<title>class Rack::MediaType - rack-2.2.22 Documentation</title>

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<main role="main" aria-labelledby="class-Rack::MediaType">
  <h1 id="class-Rack::MediaType" class="class">
    class Rack::MediaType
  </h1>

<section class="description">
    
<p><a href="MediaType.html"><code>Rack::MediaType</code></a> parse media type and parameters out of content_type string</p>

</section>

<section class="constants-list">
      <header>
        <h3>Constants</h3>
      </header>
      <dl>
      
        <dt id="SPLIT_PATTERN">SPLIT_PATTERN
        
        <dd>
        
      
      </dl>
    </section>

<section id="public-class-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Class Methods</h3>
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<div id="method-c-params" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">params</span><span
            class="method-args">(content_type)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
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<div class="method-description">
          
          <p>The media type parameters provided in CONTENT_TYPE as a Hash, or an empty Hash if no CONTENT_TYPE or media-type parameters were provided.  e.g., when the CONTENT_TYPE is “text/plain;charset=utf-8”, this method responds with the following Hash:</p>

<pre class="ruby">{ <span class="ruby-string">&#39;charset&#39;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&#39;utf-8&#39;</span> }
</pre>

<p>This will pass back parameters with empty strings in the hash if they lack a value (e.g., “text/plain;charset=” will return { &#39;charset&#39; =&gt; &#39;&#39; }, and “text/plain;charset” will return { &#39;charset&#39; =&gt; &#39;&#39; }, similarly to  the query params parser (barring the latter case, which returns nil instead)).</p>

<div class="method-source-code" id="params-source">
            <pre><span class="ruby-comment"># File lib/rack/media_type.rb, line 35</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">params</span>(<span class="ruby-identifier">content_type</span>)
  <span class="ruby-keyword">return</span> {} <span class="ruby-keyword">if</span> <span class="ruby-identifier">content_type</span>.<span class="ruby-identifier">nil?</span>

<span class="ruby-identifier">content_type</span>.<span class="ruby-identifier">split</span>(<span class="ruby-constant">SPLIT_PATTERN</span>)[<span class="ruby-value">1</span><span class="ruby-operator">..</span><span class="ruby-value">-1</span>].<span class="ruby-identifier">each_with_object</span>({}) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>, <span class="ruby-identifier">hsh</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">s</span>.<span class="ruby-identifier">strip!</span>
    <span class="ruby-identifier">k</span>, <span class="ruby-identifier">v</span> = <span class="ruby-identifier">s</span>.<span class="ruby-identifier">split</span>(<span class="ruby-string">&#39;=&#39;</span>, <span class="ruby-value">2</span>)
    <span class="ruby-identifier">k</span>.<span class="ruby-identifier">downcase!</span>
    <span class="ruby-identifier">hsh</span>[<span class="ruby-identifier">k</span>] = <span class="ruby-identifier">strip_doublequotes</span>(<span class="ruby-identifier">v</span>)
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
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<div id="method-c-type" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">type</span><span
            class="method-args">(content_type)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>The media type (type/subtype) portion of the CONTENT_TYPE header without any media type parameters. e.g., when CONTENT_TYPE is “text/plain;charset=utf-8”, the media-type is “text/plain”.</p>

<p>For more information on the use of media types in HTTP, see: <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7">www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7</a></p>

<div class="method-source-code" id="type-source">
            <pre><span class="ruby-comment"># File lib/rack/media_type.rb, line 16</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">type</span>(<span class="ruby-identifier">content_type</span>)
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">content_type</span>
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">type</span> = <span class="ruby-identifier">content_type</span>.<span class="ruby-identifier">split</span>(<span class="ruby-constant">SPLIT_PATTERN</span>, <span class="ruby-value">2</span>).<span class="ruby-identifier">first</span>
    <span class="ruby-identifier">type</span>.<span class="ruby-identifier">rstrip!</span>
    <span class="ruby-identifier">type</span>.<span class="ruby-identifier">downcase!</span>
    <span class="ruby-identifier">type</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
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     <section id="private-class-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Private Class Methods</h3>
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<div id="method-c-strip_doublequotes" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">strip_doublequotes</span><span
            class="method-args">(str)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="strip_doublequotes-source">
            <pre><span class="ruby-comment"># File lib/rack/media_type.rb, line 48</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">strip_doublequotes</span>(<span class="ruby-identifier">str</span>)
  (<span class="ruby-identifier">str</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">str</span>.<span class="ruby-identifier">start_with?</span>(<span class="ruby-string">&#39;&quot;&#39;</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">str</span>.<span class="ruby-identifier">end_with?</span>(<span class="ruby-string">&#39;&quot;&#39;</span>)) <span class="ruby-operator">?</span> <span class="ruby-identifier">str</span>[<span class="ruby-value">1</span><span class="ruby-operator">..</span><span class="ruby-value">-2</span>] <span class="ruby-operator">:</span> <span class="ruby-identifier">str</span> <span class="ruby-operator">||</span> <span class="ruby-string">&#39;&#39;</span>
<span class="ruby-keyword">end</span></pre>
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