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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>fetch (RMail::Header)</title>
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<pre><span class="cmt"># File lib/rmail/header.rb, line 203</span>
    <span class="kw">def</span> fetch(name, *rest)
      <span class="kw">if</span> rest.length &gt; 1
        raise ArgumentError, &quot;wrong # of arguments(#{rest.length + 1} for 2)&quot;
      <span class="kw">end</span>
      result = <span class="kw">self</span>[name]
      <span class="kw">if</span> result.nil?
        <span class="kw">if</span> block_given?
          <span class="kw">yield</span> name
        <span class="kw">elsif</span> rest.length == 1
          rest[0]
        <span class="kw">else</span>
          raise IndexError, <span class="str">'name not found'</span>
        <span class="kw">end</span>
      <span class="kw">else</span>
        result
      <span class="kw">end</span>
    <span class="kw">end</span></pre>
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