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#!/usr/bin/env python
##############################################################################
#
# Copyright (c) 2002 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Extract internationalization markup from Page Templates.
Once you have marked up a Page Template file with i18n: namespace tags, use
this code to extract GNU gettext .po file entries.
"""
import warnings
from zope.i18nmessageid import Message
from zope.interface import implementer
from zope.tal.dummyengine import DummyEngine
from zope.tal.interfaces import ITALExpressionEngine
from zope.tal.talinterpreter import TALInterpreter
from zope.tal.talinterpreter import normalize
pot_header = '''\
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR ORGANIZATION
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\\n"
"POT-Creation-Date: %(time)s\\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\\n"
"Language-Team: LANGUAGE <LL@li.org>\\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=CHARSET\\n"
"Content-Transfer-Encoding: ENCODING\\n"
"Generated-By: talgettext.py %(version)s\\n"
'''
NLSTR = '"\n"'
class POTALInterpreter(TALInterpreter):
def translate(self, msgid, default=None, i18ndict=None, obj=None):
if default is None:
default = getattr(msgid, 'default', str(msgid))
# If no i18n dict exists yet, create one.
if i18ndict is None:
i18ndict = {}
if obj:
i18ndict.update(obj)
# Mmmh, it seems that sometimes the msgid is None; is that really
# possible?
if msgid is None:
return None
# TODO: We need to pass in one of context or target_language
return self.engine.translate(msgid, self.i18nContext.domain, i18ndict,
default=default, position=self.position)
@implementer(ITALExpressionEngine)
class POEngine(DummyEngine):
def __init__(self, macros=None):
self.catalog = {}
DummyEngine.__init__(self, macros)
def evaluate(*args):
# If the result of evaluate ever gets into a message ID, we want
# to notice the fact in the .pot file.
return '${DYNAMIC_CONTENT}'
def evaluatePathOrVar(*args):
# Actually this method is never called.
return 'XXX'
def evaluateSequence(self, expr):
return (0,) # dummy
def evaluateBoolean(self, expr):
return True # dummy
def translate(self, msgid, domain=None, mapping=None, default=None,
# Position is not part of the ITALExpressionEngine
# interface
position=None):
if default is not None:
default = normalize(default)
if msgid == default:
default = None
msgid = Message(msgid, default=default)
if domain not in self.catalog:
self.catalog[domain] = {}
domain = self.catalog[domain]
if msgid not in domain:
domain[msgid] = []
else:
msgids = list(domain)
idx = msgids.index(msgid)
existing_msgid = msgids[idx]
if msgid.default != existing_msgid.default:
references = '\n'.join([location[0] + ':' + str(location[1])
for location in domain[msgid]])
# Note: a lot of encode calls here are needed so
# it does not break.
warnings.warn(
"Warning: msgid '%s' in %s already exists "
"with a different default (bad: %s, should be: %s)\n"
"The references for the existent value are:\n%s\n" %
(msgid.encode('utf-8'),
self.file.encode('utf-8') + b':'
+ str(position).encode('utf-8'),
msgid.default.encode('utf-8'),
existing_msgid.default.encode('utf-8'),
references.encode('utf-8')))
domain[msgid].append((self.file, position))
return 'x'
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