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  <title>word_wrap! (String)</title>
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  <pre><span class="ruby-comment cmt"># File lib/facet/string/word_wrap.rb, line 21</span>
  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">word_wrap!</span>(<span class="ruby-identifier">max</span>=<span class="ruby-value">80</span>)
    <span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-node">&quot;Wrap margin too low: #{n}&quot;</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">max</span> <span class="ruby-operator">&lt;=</span> <span class="ruby-value">2</span>
    <span class="ruby-comment cmt">#gsub!( Regexp.new( &quot;(.{1,#{max-1}}\\w)\\b\\s*&quot; ), &quot;\\1\n&quot;)</span>
    <span class="ruby-identifier">gsub!</span>( <span class="ruby-node">/(.{1,#{max-1}}\S)([ ]|\n)/</span>, <span class="ruby-value str">&quot;\\1\n&quot;</span>)
  <span class="ruby-keyword kw">end</span></pre>
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facets-0.6.3 doc/classes/String.src/M000258.html