gcc brief format to checkstyle report xml

bf2cs.rb

def read()
  files = {}
  while line = STDIN.gets
    if /^([^:]*):([0-9]+):([0-9]+): *(.*)$/ =~ line
      filename, line, column, message = $1, $2, $3, $4
      if !files.has_key?(filename)
        files[filename] = []
      end
      files[filename].push({:line => line, :column => column, :message => message})
    end
  end
  files
end

files = read()

print "<?xml version='1.0'?>\n"
print "<checkstyle>\n"
files.each do |filename, errors|
  printf "<file name='%s'>\n", filename
  errors.each do |error|
    printf "<error line='%d' column='%d' severity='info' message='%s' />\n", error[:line], error[:column], error[:message]
  end
  print "</file>\n"
end
print "</checkstyle>\n"