平成20年度春期試験_基本情報午後問6(Ruby)

h20h_fe_pm6.rb

def markup_reference in_filename, out_filename
  ref_name_tbl = []
  File.open(in_filename, "r") do |ifp|
    File.open(out_filename, "w") do |ofp|
      str = ifp.read
      str.scan(/(.*?)\\(.+?)\\/) {|pre, ref_name|
        ofp.print pre
        if i = ref_name_tbl.index(ref_name)
          ofp.print "[#{i + 1}]"
        else
          ref_name_tbl << ref_name
          ofp.print "[#{ref_name_tbl.size}]"
        end
      }
      ofp.print $'
      ofp.print "\n\nReferences\n"
      ref_name_tbl.each_with_index {|e, i|
        ofp.print "[#{i + 1}] #{e}\n"
      }
    end
  end
end

if $0 == __FILE__
  if ARGV.size != 2
    puts "Usage: #{__FILE__} infile outfile"
    abort
  end
  markup_reference ARGV[0], ARGV[1]
end

平成20年度春季基本情報午後問6 - Mae向きなブログ