Pastable version of Hash.keys_to_attr

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            <pre class="sunburst"><span style="color:#E28964;">module</span> <span style="text-decoration:underline;">Keys_to_Meths</span>
  <span style="color:#E28964;">def</span> <span style="color:#89BDFF;">method_missing</span>(<span style="color:#3E87E3;">meth<span style="color:#3E87E3;">,</span> <span style="color:#E28964;">*</span>args</span>)
    <span style="color:#E28964;">if</span> meth.<span style="color:#89BDFF;">to_s</span>[<span style="color:#E28964;">-</span><span style="color:#3387CC;">1</span>] <span style="color:#E28964;">==</span> <span style="color:#3387CC;">61</span> <span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">#</span>if last char is an equal sign</span>
      key <span style="color:#E28964;">=</span> <span style="color:#3E87E3;">self</span>.<span style="color:#89BDFF;">keys</span>.<span style="color:#89BDFF;">select</span>{|<span style="color:#3E87E3;">key</span>| key.<span style="color:#89BDFF;">to_s</span> <span style="color:#E28964;">==</span> meth.<span style="color:#89BDFF;">to_s</span>[<span style="color:#3387CC;">0</span>...<span style="color:#E28964;">-</span><span style="color:#3387CC;">1</span>]}[<span style="color:#3387CC;">0</span>]
      key <span style="color:#E28964;">?</span> <span style="color:#3E87E3;">self</span>[key] <span style="color:#E28964;">=</span> args[<span style="color:#3387CC;">0</span>] : <span style="color:#E28964;">raise</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>undefined key '<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>meth<span style="color:#DAEFA3;">}</span></span>'<span style="color:#65B042;">&quot;</span></span>)
    <span style="color:#E28964;">else</span>
      key <span style="color:#E28964;">=</span> <span style="color:#3E87E3;">self</span>.<span style="color:#89BDFF;">keys</span>.<span style="color:#89BDFF;">select</span>{|<span style="color:#3E87E3;">key</span>| key.<span style="color:#89BDFF;">to_s</span> <span style="color:#E28964;">==</span> meth.<span style="color:#89BDFF;">to_s</span>}[<span style="color:#3387CC;">0</span>]
      key <span style="color:#E28964;">?</span> <span style="color:#3E87E3;">self</span>[key] : <span style="color:#E28964;">raise</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>undefined key '<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>meth<span style="color:#DAEFA3;">}</span></span>'<span style="color:#65B042;">&quot;</span></span>)
    <span style="color:#E28964;">end</span>
  <span style="color:#E28964;">end</span>
<span style="color:#E28964;">end</span>
<span style="color:#E28964;">class</span> <span style="text-decoration:underline;">Hash</span>
  <span style="color:#E28964;">def</span> <span style="color:#89BDFF;">keys_to_meths</span>
    <span style="color:#3E87E3;">self</span>.<span style="color:#89BDFF;">each_key</span> {|<span style="color:#3E87E3;">key</span>| <span style="color:#E28964;">if</span> <span style="color:#3E87E3;">self</span>.<span style="color:#89BDFF;">methods</span>.<span style="color:#89BDFF;">include?</span>(key.<span style="color:#89BDFF;">to_s</span>) <span style="color:#E28964;">then</span> <span style="color:#E28964;">raise</span>(<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>key '<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>key<span style="color:#DAEFA3;"><span style="color:#DAEFA3;">.</span><span style="color:#89BDFF;">to_s</span></span><span style="color:#DAEFA3;">}</span></span>' included in Hash method list<span style="color:#65B042;">&quot;</span></span>) <span style="color:#E28964;">end</span>}
    <span style="color:#E28964;">extend</span> <span style="color:#3E87E3;">Keys_to_Meths</span>
  <span style="color:#E28964;">end</span>
<span style="color:#E28964;">end</span>

<span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">=begin</span></span>
<span style="color:#AEAEAE;font-style:italic;">  Example:</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh = {:one=&gt;1, &quot;two&quot;=&gt;2, &quot;tres&quot;=&gt;3}</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.keys_to_meths</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.two # =&gt; 2</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.two = &quot;t-dubble-izzo&quot; # =&gt; &quot;t-dubble-izzo&quot;</span>
<span style="color:#AEAEAE;font-style:italic;">    p hsh # =&gt; {:one=&gt;1, &quot;two&quot;=&gt;&quot;t-dubble-izzo&quot;, &quot;three&quot;=&gt;3}</span>
<span style="color:#AEAEAE;font-style:italic;">    </span>
<span style="color:#AEAEAE;font-style:italic;">  Fckup: String and Symbols mess up keys</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh = {:one=&gt;1, &quot;one&quot;=&gt;&quot;uno&quot;}</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.keys_to_meths</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.one # =&gt; 1</span>
<span style="color:#AEAEAE;font-style:italic;">    hsh.one = &quot;GARBLE&quot; # =&gt; &quot;t-dubble-izzo&quot;</span>
<span style="color:#AEAEAE;font-style:italic;">    p hsh # =&gt; {:one=&gt;&quot;GARBLE&quot;, &quot;one&quot;=&gt;&quot;uno&quot;}</span>
<span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">=end</span></span>
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