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<title>parse_accept_header (OpenID::Yadis)</title>
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<pre><span class="ruby-comment cmt"># File lib/openid/yadis/accept.rb, line 39</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">parse_accept_header</span>(<span class="ruby-identifier">value</span>)
<span class="ruby-comment cmt"># Parse an accept header, ignoring any accept-extensions</span>
<span class="ruby-comment cmt">#</span>
<span class="ruby-comment cmt"># returns a list of tuples containing main MIME type, MIME</span>
<span class="ruby-comment cmt"># subtype, and quality markdown.</span>
<span class="ruby-comment cmt">#</span>
<span class="ruby-comment cmt"># str -> [(str, str, float)]</span>
<span class="ruby-identifier">chunks</span> = <span class="ruby-identifier">value</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">','</span>, <span class="ruby-value">-1</span>).<span class="ruby-identifier">collect</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">strip</span> }
<span class="ruby-identifier">accept</span> = []
<span class="ruby-identifier">chunks</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">chunk</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">parts</span> = <span class="ruby-identifier">chunk</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">";"</span>, <span class="ruby-value">-1</span>).<span class="ruby-identifier">collect</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span>.<span class="ruby-identifier">strip</span> }
<span class="ruby-identifier">mtype</span> = <span class="ruby-identifier">parts</span>.<span class="ruby-identifier">shift</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">mtype</span>.<span class="ruby-identifier">index</span>(<span class="ruby-value str">'/'</span>).<span class="ruby-identifier">nil?</span>
<span class="ruby-comment cmt"># This is not a MIME type, so ignore the bad data</span>
<span class="ruby-keyword kw">next</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">main</span>, <span class="ruby-identifier">sub</span> = <span class="ruby-identifier">mtype</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">'/'</span>, <span class="ruby-value">2</span>)
<span class="ruby-identifier">q</span> = <span class="ruby-keyword kw">nil</span>
<span class="ruby-identifier">parts</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">ext</span><span class="ruby-operator">|</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">ext</span>.<span class="ruby-identifier">index</span>(<span class="ruby-value str">'='</span>).<span class="ruby-identifier">nil?</span>
<span class="ruby-identifier">k</span>, <span class="ruby-identifier">v</span> = <span class="ruby-identifier">ext</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">'='</span>, <span class="ruby-value">2</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">k</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'q'</span>
<span class="ruby-identifier">q</span> = <span class="ruby-identifier">v</span>.<span class="ruby-identifier">to_f</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
}
<span class="ruby-identifier">q</span> = <span class="ruby-value">1.0</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">q</span>.<span class="ruby-identifier">nil?</span>
<span class="ruby-identifier">accept</span> <span class="ruby-operator"><<</span> [<span class="ruby-identifier">q</span>, <span class="ruby-identifier">main</span>, <span class="ruby-identifier">sub</span>]
}
<span class="ruby-identifier">accept</span>.<span class="ruby-identifier">sort!</span>
<span class="ruby-identifier">accept</span>.<span class="ruby-identifier">reverse!</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">accept</span>.<span class="ruby-identifier">collect</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">q</span>, <span class="ruby-identifier">main</span>, <span class="ruby-identifier">sub</span><span class="ruby-operator">|</span> [<span class="ruby-identifier">main</span>, <span class="ruby-identifier">sub</span>, <span class="ruby-identifier">q</span>] }
<span class="ruby-keyword kw">end</span></pre>
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