lib/eregex.rb

DEFINITIONS

   1  # this is just a proof of concept toy.
   2  
   3  class RegOr
   4    def initialize(re1, re2)
   5      @re1 = re1
   6      @re2 = re2
   7    end
   8  
   9    def =~ (str)
  10      @re1 =~ str or @re2 =~ str
  11    end
  12  end
  13  
  14  class RegAnd
  15    def initialize(re1, re2)
  16      @re1 = re1
  17      @re2 = re2
  18    end
  19  
  20    def =~ (str)
  21      @re1 =~ str and @re2 =~ str
  22    end
  23  end
  24  
  25  class Regexp
  26    def |(other)
  27      RegOr.new(self, other)
  28    end
  29    def &(other)
  30      RegAnd.new(self, other)
  31    end
  32  end
  33  
  34  if __FILE__ == $0
  35    p "abc" =~ /b/|/c/
  36    p "abc" =~ /b/&/c/
  37  end