Pastable version of Print out the Regex Capture

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            <pre class="sunburst">regexp <span style="color:#E28964;">=</span> <span style="color:#9B859D;">Regexp</span>.<span style="color:#89BDFF;">new</span>(<span style="color:#3E87E3;">ARGV</span>[<span style="color:#3387CC;">0</span>])

match_index <span style="color:#E28964;">=</span> (<span style="color:#3E87E3;">ARGV</span>[<span style="color:#3387CC;">1</span>] <span style="color:#E28964;">||</span> <span style="color:#3387CC;">1</span>).<span style="color:#89BDFF;">to_i</span>

<span style="color:#E28964;">while</span> line <span style="color:#E28964;">=</span> <span style="color:#3E87E3;"><span style="color:#3E87E3;">$</span>stdin</span>.<span style="color:#89BDFF;">gets</span> <span style="color:#E28964;">do</span>
  puts regexp.<span style="color:#89BDFF;">match</span>(line.<span style="color:#89BDFF;">chomp</span>)[match_index]
<span style="color:#E28964;">end</span>
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