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Split String into Sentences

/ Published in: Ruby
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A monkey patch splitting a string into sentences.

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  1. class String
  2.   def split_sentence
  3.     ary = self.gsub(/\n/," ").split(/([^\.\?\!]+[\.\?\!])/)
  4.     ary.delete("")
  5.     sentences = Array.new
  6.     str = ""
  7.     for i in 0..ary.size-1
  8.       next if ary[i].size == 0 || ary[i] =~ /^\s*$/
  9.       str << ary[i]
  10.       next if str =~ /Mr|Mrs|Ms|Dr|Mt|St\.$/
  11.       if (i < ary.size-1)
  12.         next if ary[i] =~ /[A-Z]\.$/
  13.         next if ary[i+1] =~ /^\s*[a-z]/
  14.       end
  15.       if ary[i+1] =~ /^\"/
  16.         str << '"'
  17.         ary[i+1].sub!(/^\"/,"")
  18.       elsif ary[i+1] =~ /^\)/
  19.         str << ')'
  20.         ary[i+1].sub!(/^\)/,"")
  21.       end
  22.       sentences << str.sub(/^\s+/,"")
  23.       str = ""
  24.     end
  25.     sentences
  26.   end
  27. end

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