Package translate :: Package convert :: Module rc2po |
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# Source Code for Module translate.convert.rc2po

      1  #!/usr/bin/env python
      2  # -*- coding: utf-8 -*-
      3  #
      4  # Copyright 2007-2009 Zuza Software Foundation
      5  #
      6  # This file is part of the Translate Toolkit.
      7  #
      8  # This program is free software; you can redistribute it and/or modify
      9  # it under the terms of the GNU General Public License as published by
     10  # the Free Software Foundation; either version 2 of the License, or
     11  # (at your option) any later version.
     12  #
     13  # This program is distributed in the hope that it will be useful,
     14  # but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  # GNU General Public License for more details.
     17  #
     18  # You should have received a copy of the GNU General Public License
     19  # along with this program; if not, see <http://www.gnu.org/licenses/>.
     20
     21  """convert .rc files to Gettext PO localization files"""
     22
     23  import sys
     24  from translate.storage import po
     25  from translate.storage import rc
     26
     27 -class rc2po:
     28      """Convert a .rc file to a .po file for handling the translation."""
     29 -    def __init__(self, charset=None):
     30          self.charset = charset
     31
     32 -    def convert_store(self, input_store, duplicatestyle="msgctxt"):
     33          """converts a .rc file to a .po file..."""
     34          output_store = po.pofile()
     35          output_header = output_store.makeheader(charset="UTF-8", encoding="8bit")
     36          output_header.addnote("extracted from %s" % input_store.filename, "developer")
     37          output_store.addunit(output_header)
     38          for input_unit in input_store.units:
     39              output_unit = self.convert_unit(input_unit, "developer")
     40              if output_unit is not None:
     41                  output_store.addunit(output_unit)
     42          output_store.removeduplicates(duplicatestyle)
     43          return output_store
     44
     45 -    def merge_store(self, template_store, input_store, blankmsgstr=False, duplicatestyle="msgctxt"):
     46          """converts two .rc files to a .po file..."""
     47          output_store = po.pofile()
     48          output_header = output_store.makeheader(charset="UTF-8", encoding="8bit")
     49          output_header.addnote("extracted from %s, %s" % (template_store.filename, input_store.filename), "developer")
     50          output_store.addunit(output_header)
     51          input_store.makeindex()
     52          for template_unit in template_store.units:
     53              origpo = self.convert_unit(template_unit, "developer")
     54              # try and find a translation of the same name...
     55              template_unit_name = "".join(template_unit.getlocations())
     56              if template_unit_name in input_store.locationindex:
     57                  translatedrc = input_store.locationindex[template_unit_name]
     58                  translatedpo = self.convert_unit(translatedrc, "translator")
     59              else:
     60                  translatedpo = None
     61              # if we have a valid po unit, get the translation and add it...
     62              if origpo is not None:
     63                  if translatedpo is not None and not blankmsgstr:
     64                      origpo.target = translatedpo.source
     65                  output_store.addunit(origpo)
     66              elif translatedpo is not None:
     67                  print >> sys.stderr, "error converting original rc definition %s" % origrc.name
     68          output_store.removeduplicates(duplicatestyle)
     69          return output_store
     70
     71 -    def convert_unit(self, input_unit, commenttype):
     72          """Converts a .rc unit to a .po unit. Returns None if empty
     73          or not for translation."""
     74          if input_unit is None:
     75              return None
     76          # escape unicode
     77          output_unit = po.pounit(encoding="UTF-8")
     78          output_unit.addlocation("".join(input_unit.getlocations()))
     79          output_unit.source = input_unit.source.decode(self.charset)
     80          output_unit.target = ""
     81          return output_unit
     82
     83 -def convertrc(input_file, output_file, template_file, pot=False, duplicatestyle="msgctxt", charset=None, lang=None, sublang=None):
     84      """reads in input_file using rc, converts using rc2po, writes to output_file"""
     85      input_store = rc.rcfile(input_file, lang, sublang)
     86      convertor = rc2po(charset=charset)
     87      if template_file is None:
     88          output_store = convertor.convert_store(input_store, duplicatestyle=duplicatestyle)
     89      else:
     90          template_store = rc.rcfile(template_file, lang, sublang)
     91          output_store = convertor.merge_store(template_store, input_store, blankmsgstr=pot, duplicatestyle=duplicatestyle)
     92      if output_store.isempty():
     93          return 0
     94      output_file.write(str(output_store))
     95      return 1
     96
     97 -def main(argv=None):
     98      from translate.convert import convert
     99      formats = {"rc": ("po", convertrc), ("rc", "rc"): ("po", convertrc),
    100                 "nls": ("po", convertrc), ("nls", "nls"): ("po", convertrc)}
    101      parser = convert.ConvertOptionParser(formats, usetemplates=True, usepots=True, description=__doc__)
    102      DEFAULTCHARSET = "cp1252"
    103      parser.add_option("", "--charset", dest="charset", default=DEFAULTCHARSET,
    104          help="charset to use to decode the RC files (default: %s)" % DEFAULTCHARSET, metavar="CHARSET")
    105      DEFAULTLANG = "LANG_ENGLISH"
    106      parser.add_option("-l", "--lang", dest="lang", default=DEFAULTLANG,
    107          help="LANG entry (default: %s)" % DEFAULTLANG, metavar="LANG")
    108      DEFAULTSUBLANG = "SUBLANG_DEFAULT"
    109      parser.add_option("", "--sublang", dest="sublang", default=DEFAULTSUBLANG,
    110          help="SUBLANG entry (default: %s)" % DEFAULTSUBLANG, metavar="SUBLANG")
    111      parser.add_duplicates_option()
    112      parser.passthrough.append("pot")
    113      parser.passthrough.append("charset")
    114      parser.passthrough.append("lang")
    115      parser.passthrough.append("sublang")
    116      parser.run(argv)
    117
    118  if __name__ == '__main__':
    119      main()
    120