michael@0: #!/usr/bin/env python
michael@0: # Copyright (c) 2011 The Chromium Authors. All rights reserved.
michael@0: # Use of this source code is governed by a BSD-style license that can be
michael@0: # found in the LICENSE file.
michael@0: 
michael@0: """Convert any unicode characters found in the input file to C literals."""
michael@0: 
michael@0: import codecs
michael@0: import optparse
michael@0: import os
michael@0: import sys
michael@0: 
michael@0: 
michael@0: def main(argv):
michael@0:   parser = optparse.OptionParser()
michael@0:   usage = 'Usage: %prog -o <output_dir> <input_file>'
michael@0:   parser.set_usage(usage)
michael@0:   parser.add_option('-o', dest='output_dir')
michael@0: 
michael@0:   options, arglist = parser.parse_args(argv)
michael@0: 
michael@0:   if not options.output_dir:
michael@0:     print "output_dir required"
michael@0:     return 1
michael@0: 
michael@0:   if len(arglist) != 2:
michael@0:     print "input_file required"
michael@0:     return 1
michael@0: 
michael@0:   in_filename = arglist[1]
michael@0: 
michael@0:   if not in_filename.endswith('.utf8'):
michael@0:     print "input_file should end in .utf8"
michael@0:     return 1
michael@0: 
michael@0:   out_filename = os.path.join(options.output_dir, os.path.basename(
michael@0:       os.path.splitext(in_filename)[0]))
michael@0: 
michael@0:   WriteEscapedFile(in_filename, out_filename)
michael@0:   return 0
michael@0: 
michael@0: 
michael@0: def WriteEscapedFile(in_filename, out_filename):
michael@0:   input_data = codecs.open(in_filename, 'r', 'utf8').read()
michael@0:   with codecs.open(out_filename, 'w', 'ascii') as out_file:
michael@0:     for i, char in enumerate(input_data):
michael@0:       if ord(char) > 127:
michael@0:         out_file.write(repr(char.encode('utf8'))[1:-1])
michael@0:         if input_data[i + 1:i + 2] in '0123456789abcdefABCDEF':
michael@0:           out_file.write('""')
michael@0:       else:
michael@0:         out_file.write(char.encode('ascii'))
michael@0: 
michael@0: 
michael@0: if __name__ == '__main__':
michael@0:   sys.exit(main(sys.argv))