38 lines
849 B
Ruby
38 lines
849 B
Ruby
# frozen_string_literal: true
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require 'optparse'
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lines = 0
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words = 0
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bytes = 0
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options = {}
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OptionParser.new do |opts|
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opts.on('-l') { options[:lines] = true }
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opts.on('-w') { options[:words] = true }
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opts.on('-c') { options[:bytes] = true }
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end.parse!
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input = if !ARGV.empty?
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File.read(ARGV[0])
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elsif !$stdin.tty?
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$stdin.read
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else
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puts 'ファイルパスまたはパイプラインからの入力がありません。'
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exit
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end
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input.each_line do |line|
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lines += 1
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words += line.split.size
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bytes += line.bytesize
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end
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options = { bytes: true, lines: true, words: true } if options.empty?
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result = []
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result << lines if options[:lines]
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result << words if options[:words]
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result << bytes if options[:bytes]
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file_name = ARGV[0]
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puts "#{result.join(' ')} #{file_name}"
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