/usr/share/pyshared/translate/convert/prop2po.py is in translate-toolkit 1.10.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# -*- coding: utf-8 -*-
#
# Copyright 2002-2010,2012 Zuza Software Foundation
#
# This file is part of translate.
#
# translate is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# translate is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
"""Convert Java/Mozilla .properties files to Gettext PO localization files.
See: http://docs.translatehouse.org/projects/translate-toolkit/en/latest/commands/prop2po.html
for examples and usage instructions.
"""
import sys
from translate.storage import po
from translate.storage import properties
def _collapse(store, units):
sources = [u.source for u in units]
targets = [u.target for u in units]
# TODO: only consider the right ones for sources and targets
plural_unit = store.addsourceunit(sources)
plural_unit.target = targets
return plural_unit
class prop2po:
"""convert a .properties file to a .po file for handling the
translation."""
def convertstore(self, thepropfile, personality="java",
duplicatestyle="msgctxt"):
"""converts a .properties file to a .po file..."""
self.personality = personality
thetargetfile = po.pofile()
if self.personality in ("mozilla", "skype"):
targetheader = thetargetfile.init_headers(
x_accelerator_marker="&",
x_merge_on="location",
)
else:
targetheader = thetargetfile.header()
targetheader.addnote("extracted from %s" % thepropfile.filename,
"developer")
# we try and merge the header po with any comments at the start of the
# properties file
appendedheader = False
waitingcomments = []
for propunit in thepropfile.units:
pounit = self.convertunit(propunit, "developer")
if pounit is None:
waitingcomments.extend(propunit.comments)
# FIXME the storage class should not be creating blank units
if pounit is "discard":
continue
if not appendedheader:
if propunit.isblank():
targetheader.addnote("\n".join(waitingcomments).rstrip(),
"developer", position="prepend")
waitingcomments = []
pounit = None
appendedheader = True
if pounit is not None:
pounit.addnote("\n".join(waitingcomments).rstrip(),
"developer", position="prepend")
waitingcomments = []
thetargetfile.addunit(pounit)
if self.personality == "gaia":
thetargetfile = self.fold_gaia_plurals(thetargetfile)
thetargetfile.removeduplicates(duplicatestyle)
return thetargetfile
def mergestore(self, origpropfile, translatedpropfile, personality="java",
blankmsgstr=False, duplicatestyle="msgctxt"):
"""converts two .properties files to a .po file..."""
self.personality = personality
thetargetfile = po.pofile()
if self.personality in ("mozilla", "skype"):
targetheader = thetargetfile.init_headers(
x_accelerator_marker="&",
x_merge_on="location",
)
else:
targetheader = thetargetfile.header()
targetheader.addnote("extracted from %s, %s" % (origpropfile.filename, translatedpropfile.filename),
"developer")
translatedpropfile.makeindex()
# we try and merge the header po with any comments at the start of
# the properties file
appendedheader = False
waitingcomments = []
# loop through the original file, looking at units one by one
for origprop in origpropfile.units:
origpo = self.convertunit(origprop, "developer")
if origpo is None:
waitingcomments.extend(origprop.comments)
# FIXME the storage class should not be creating blank units
if origpo is "discard":
continue
# handle the header case specially...
if not appendedheader:
if origprop.isblank():
targetheader.addnote(u"".join(waitingcomments).rstrip(),
"developer", position="prepend")
waitingcomments = []
origpo = None
appendedheader = True
# try and find a translation of the same name...
if origprop.name in translatedpropfile.locationindex:
translatedprop = translatedpropfile.locationindex[origprop.name]
# Need to check that this comment is not a copy of the
# developer comments
translatedpo = self.convertunit(translatedprop, "translator")
if translatedpo is "discard":
continue
else:
translatedpo = None
# if we have a valid po unit, get the translation and add it...
if origpo is not None:
if translatedpo is not None and not blankmsgstr:
origpo.target = translatedpo.source
origpo.addnote(u"".join(waitingcomments).rstrip(),
"developer", position="prepend")
waitingcomments = []
thetargetfile.addunit(origpo)
elif translatedpo is not None:
print >> sys.stderr, "error converting original properties definition %s" % origprop.name
if self.personality == "gaia":
thetargetfile = self.fold_gaia_plurals(thetargetfile)
thetargetfile.removeduplicates(duplicatestyle)
return thetargetfile
def fold_gaia_plurals(self, postore):
"""Fold the multiple plural units of a gaia file into a gettext plural."""
new_store = type(postore)()
plurals = {}
current_plural = u""
for unit in postore.units:
if not unit.istranslatable():
#TODO: reconsider: we could lose header comments here
continue
if u"plural(n)" in unit.source:
# start of a set of plural units
location = unit.getlocations()[0]
current_plural = location
plurals[location] = []
# We ignore the first one, since it doesn't contain translatable
# text, only a marker.
else:
location = unit.getlocations()[0]
if current_plural and location.startswith(current_plural):
plurals[current_plural].append(unit)
if not '[zero]' in location:
# We want to keep [zero] cases separately translatable
continue
elif current_plural:
# End of a set of plural units
new_unit = _collapse(new_store, plurals[current_plural])
new_unit.addlocation(current_plural)
del plurals[current_plural]
current_plural = u""
new_store.addunit(unit)
if current_plural:
# The file ended with a set of plural units
new_unit = _collapse(new_store, plurals[current_plural])
new_unit.addlocation(current_plural)
del plurals[current_plural]
current_plural = u""
# if everything went well, there should be nothing left in plurals
if len(plurals) != 0:
print >> sys.stderr, "Not all plural units converted correctly:"
print >> sys.stderr, "\n".join(plurals.keys())
return new_store
def convertunit(self, propunit, commenttype):
"""Converts a .properties unit to a .po unit. Returns None if empty
or not for translation."""
if propunit is None:
return None
# escape unicode
pounit = po.pounit(encoding="UTF-8")
if hasattr(propunit, "comments"):
for comment in propunit.comments:
if "DONT_TRANSLATE" in comment:
return "discard"
pounit.addnote(u"".join(propunit.getnotes()).rstrip(), commenttype)
# TODO: handle multiline msgid
if propunit.isblank():
return None
pounit.addlocation(propunit.name)
pounit.source = propunit.source
pounit.target = u""
return pounit
def convertstrings(inputfile, outputfile, templatefile, personality="strings",
pot=False, duplicatestyle="msgctxt", encoding=None):
""".strings specific convertor function"""
return convertprop(inputfile, outputfile, templatefile,
personality="strings", pot=pot,
duplicatestyle=duplicatestyle, encoding=encoding)
def convertmozillaprop(inputfile, outputfile, templatefile, pot=False,
duplicatestyle="msgctxt"):
"""Mozilla specific convertor function"""
return convertprop(inputfile, outputfile, templatefile,
personality="mozilla", pot=pot,
duplicatestyle=duplicatestyle)
def convertprop(inputfile, outputfile, templatefile, personality="java",
pot=False, duplicatestyle="msgctxt", encoding=None):
"""reads in inputfile using properties, converts using prop2po, writes
to outputfile"""
inputstore = properties.propfile(inputfile, personality, encoding)
convertor = prop2po()
if templatefile is None:
outputstore = convertor.convertstore(inputstore, personality,
duplicatestyle=duplicatestyle)
else:
templatestore = properties.propfile(templatefile, personality, encoding)
outputstore = convertor.mergestore(templatestore, inputstore,
personality, blankmsgstr=pot,
duplicatestyle=duplicatestyle)
if outputstore.isempty():
return 0
outputfile.write(str(outputstore))
return 1
formats = {
"properties": ("po", convertprop),
("properties", "properties"): ("po", convertprop),
"lang": ("po", convertprop),
("lang", "lang"): ("po", convertprop),
"strings": ("po", convertstrings),
("strings", "strings"): ("po", convertstrings),
}
def main(argv=None):
from translate.convert import convert
parser = convert.ConvertOptionParser(formats, usetemplates=True,
usepots=True,
description=__doc__)
parser.add_option("", "--personality", dest="personality",
default=properties.default_dialect,
type="choice",
choices=properties.dialects.keys(),
help="override the input file format: %s (for .properties files, default: %s)" %
(", ".join(properties.dialects.iterkeys()),
properties.default_dialect),
metavar="TYPE")
parser.add_option("", "--encoding", dest="encoding", default=None,
help="override the encoding set by the personality",
metavar="ENCODING")
parser.add_duplicates_option()
parser.passthrough.append("pot")
parser.passthrough.append("personality")
parser.passthrough.append("encoding")
parser.run(argv)
if __name__ == '__main__':
main()
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