找出指定路径下文件中包含中文的行

scan_chinese.rb

# encoding: utf-8
class ScanChinese
  def self.scan(file)
    if File.directory?(file)
      files = (Dir.entries(file) - %w( . .. ))
      dir = files.map{|name| File.join(file, name)}
      dir.each do |filename|
        if File.directory?(filename)
          scan(filename)
        else
          read(filename)
        end
      end
    else
      read(file)
    end
  end

  def self.read(filename)
    return unless %w( .rb .erb .js .coffee .css .scss .yml).include?(File.extname(filename))
    file = File.open(filename, 'r')
    flag = true
    line_no = 0

    file.each_line do |line|
      line_no += 1

      str = line.gsub(/\s|#+.*$|\/\/.*$/, '')
      if str.size > 0 && str.scan(/[\u3000-\u9FFF]+([^#]+)/).any?
        puts("**** #{filename}") if flag
        puts("#{line_no}: #{line}")
        flag = false
      end

    end
    file.close
  end
end

ARGV.each do |args|
  next unless File.exists?(args)
  ScanChinese.scan(args)
end