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<title>all_possible_extensions (ImageFormat)</title>
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<pre><span class="ruby-comment cmt"># File lib/ImageFormat.rb, line 36</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">all_possible_extensions</span>
<span class="ruby-ivar">@@all_possible_extensions</span>= <span class="ruby-constant">ImageFormat</span>.<span class="ruby-identifier">all_image_formats</span>.<span class="ruby-identifier">collect</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">format</span><span class="ruby-operator">|</span> <span class="ruby-identifier">format</span>.<span class="ruby-identifier">possible_extensions</span>}.<span class="ruby-identifier">flatten</span>.<span class="ruby-identifier">uniq</span>.<span class="ruby-identifier">collect</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">ext</span><span class="ruby-operator">|</span> <span class="ruby-identifier">ext</span>.<span class="ruby-identifier">downcase</span>} <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@@all_possible_extensions</span>.<span class="ruby-identifier">nil?</span>
<span class="ruby-ivar">@@all_possible_extensions</span>
<span class="ruby-keyword kw">end</span></pre>
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