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<title>add (OpenID::NamespaceMap)</title>
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<pre><span class="ruby-comment cmt"># File lib/openid/message.rb, line 510</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add</span>(<span class="ruby-identifier">namespace_uri</span>)
<span class="ruby-comment cmt"># see if this namepace is already mapped to an alias</span>
<span class="ruby-identifier">_alias</span> = <span class="ruby-ivar">@namespace_to_alias</span>[<span class="ruby-identifier">namespace_uri</span>]
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">_alias</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">_alias</span>
<span class="ruby-comment cmt"># Fall back to generating a numberical alias</span>
<span class="ruby-identifier">i</span> = <span class="ruby-value">0</span>
<span class="ruby-keyword kw">while</span> <span class="ruby-keyword kw">true</span>
<span class="ruby-identifier">_alias</span> = <span class="ruby-value str">'ext'</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">i</span>.<span class="ruby-identifier">to_s</span>
<span class="ruby-keyword kw">begin</span>
<span class="ruby-identifier">add_alias</span>(<span class="ruby-identifier">namespace_uri</span>, <span class="ruby-identifier">_alias</span>)
<span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">IndexError</span>
<span class="ruby-identifier">i</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">_alias</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">StandardError</span>, <span class="ruby-value str">'Unreachable'</span>
<span class="ruby-keyword kw">end</span></pre>
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