75 lines
1.9 KiB
Ruby
75 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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require 'optparse'
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def parse_options
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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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options = { bytes: true, lines: true, words: true } if options.empty?
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[options, ARGV.empty? ? ['-'] : ARGV]
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end
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def count_file_stats(input)
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lines = words = bytes = 0
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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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[lines, words, bytes]
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end
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def process_input(source)
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if source == '-'
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count_file_stats(ARGF)
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else
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count_file_stats(File.read(source))
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end
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end
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def update_totals(totals, stats)
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totals.zip(stats).map { |total, stat| total + stat }
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end
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def update_max_widths(max_widths, stats)
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max_widths.zip(stats).map { |max, stat| [max, stat.to_s.length].max }
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end
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def format_result(stats, max_widths, options)
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result = []
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%i[lines words bytes].each_with_index do |key, index|
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result << stats[index].to_s.rjust(max_widths[index]) if options[key]
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end
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result.join(' ')
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end
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def print_result(result, source)
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puts "#{result} #{source == '-' ? '' : source}"
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end
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def print_total(total_stats, max_widths, options)
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total_result = format_result(total_stats, max_widths, options)
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puts "#{total_result} 合計"
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end
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def process_input_sources(input_sources, options)
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total_stats = [0, 0, 0]
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max_widths = [0, 0, 0]
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input_sources.each do |source|
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stats = process_input(source)
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total_stats = update_totals(total_stats, stats)
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max_widths = update_max_widths(max_widths, stats)
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result = format_result(stats, max_widths, options)
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print_result(result, source)
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end
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print_total(total_stats, max_widths, options) if input_sources.size > 1
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end
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options, input_sources = parse_options
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process_input_sources(input_sources, options)
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