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<title>encode_charset_exactly (String)</title>
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<pre><span class="ruby-comment cmt"># File mconv.rb, line 227</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">encode_charset_exactly</span>(<span class="ruby-identifier">charset</span>)
<span class="ruby-identifier">result</span> = <span class="ruby-constant">Iconv</span>.<span class="ruby-identifier">conv</span>(<span class="ruby-identifier">charset</span>, <span class="ruby-constant">Mconv</span>.<span class="ruby-identifier">internal_mime_charset</span>, <span class="ruby-keyword kw">self</span>)
<span class="ruby-identifier">round_trip</span> = <span class="ruby-constant">Iconv</span>.<span class="ruby-identifier">conv</span>(<span class="ruby-constant">Mconv</span>.<span class="ruby-identifier">internal_mime_charset</span>, <span class="ruby-identifier">charset</span>, <span class="ruby-identifier">result</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-keyword kw">self</span> <span class="ruby-operator">!=</span> <span class="ruby-identifier">round_trip</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-value str">"not round trip"</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">result</span>
<span class="ruby-keyword kw">end</span></pre>
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