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posegment.py
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posegment.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2008-2009 Zuza Software Foundation
#
# This file is part of the Translate Toolkit.
#
# This program 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.
#
# This program 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/>.
"""Segment Gettext PO, XLIFF and TMX localization files at the sentence level.
See: http://docs.translatehouse.org/projects/translate-toolkit/en/latest/commands/posegment.html
for examples and usage instructions.
"""
from translate.lang import factory as lang_factory
from translate.storage import factory, poheader
class segment:
def __init__(self, sourcelang, targetlang, stripspaces=True, onlyaligned=False):
self.sourcelang = sourcelang
self.targetlang = targetlang
self.stripspaces = stripspaces
self.onlyaligned = onlyaligned
def segmentunit(self, unit):
if unit.isheader() or unit.hasplural():
return [unit]
sourcesegments = self.sourcelang.sentences(unit.source, strip=self.stripspaces)
targetsegments = self.targetlang.sentences(unit.target, strip=self.stripspaces)
if unit.istranslated() and (len(sourcesegments) != len(targetsegments)):
if not self.onlyaligned:
return [unit]
else:
return None
# We could do more here to check if the lengths correspond more or less,
# certain quality checks are passed, etc. But for now this is a good
# start.
units = []
for i in range(len(sourcesegments)):
newunit = unit.copy()
newunit.source = sourcesegments[i]
if not unit.istranslated():
newunit.target = ""
else:
newunit.target = targetsegments[i]
units.append(newunit)
return units
def convertstore(self, fromstore):
tostore = type(fromstore)()
if isinstance(fromstore, poheader.poheader):
# We don't want the default header in the case of PO, but rather the
# one from `fromstore`.
if fromstore.header() is not None:
tostore.units = []
for unit in fromstore.units:
newunits = self.segmentunit(unit)
if newunits:
for newunit in newunits:
tostore.addunit(newunit)
return tostore
def segmentfile(inputfile, outputfile, templatefile, sourcelanguage="en", targetlanguage=None, stripspaces=True, onlyaligned=False):
"""reads in inputfile, segments it then, writes to outputfile"""
# note that templatefile is not used, but it is required by the converter...
inputstore = factory.getobject(inputfile)
if inputstore.isempty():
return 0
sourcelang = lang_factory.getlanguage(sourcelanguage)
targetlang = lang_factory.getlanguage(targetlanguage)
convertor = segment(sourcelang, targetlang, stripspaces=stripspaces, onlyaligned=onlyaligned)
outputstore = convertor.convertstore(inputstore)
outputstore.serialize(outputfile)
return 1
def main():
from translate.convert import convert
formats = {"po": ("po", segmentfile), "xlf": ("xlf", segmentfile), "tmx": ("tmx", segmentfile)}
parser = convert.ConvertOptionParser(formats, usepots=True, description=__doc__)
parser.add_option(
"-l", "--language", dest="targetlanguage", default=None,
help="the target language code", metavar="LANG")
parser.add_option(
"", "--source-language", dest="sourcelanguage", default=None,
help="the source language code (default 'en')", metavar="LANG")
parser.passthrough.append("sourcelanguage")
parser.passthrough.append("targetlanguage")
parser.add_option(
"", "--keepspaces", dest="stripspaces", action="store_false",
default=True, help="Disable automatic stripping of whitespace")
parser.passthrough.append("stripspaces")
parser.add_option(
"", "--only-aligned", dest="onlyaligned", action="store_true",
default=False, help="Removes units where sentence number does not correspond")
parser.passthrough.append("onlyaligned")
parser.run()
if __name__ == '__main__':
main()