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#!/usr/bin/env ruby
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# Converts lines from a file into an alternation of regex.
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if ARGV.size == 0
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puts "lines_to_array.rb <file>"
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else
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lines = File.readlines(ARGV[0])
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lines = lines.map do |line|
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line.strip
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end
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puts '/\\b(' + lines.join('|') + ')\\b/'
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end |