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#!/usr/bin/ruby# Requires an ANSI terminal!st = "\033[7m"en = "\033[m"puts "Enter an empty string at any time to exit."while true  print "str> "; STDOUT.flush; str = gets.chop  break if str.empty?  print "pat> "; STDOUT.flush; pat = gets.chop  break if pat.empty?  re = Regexp.new(pat)  puts str.gsub(re,"#{st}\\&#{en}")#  puts "#{$1}\n"#  puts $2#  puts $3#  if $3.to_f > 0.0#    puts "Load greater than 0.00\n"#  endend