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# -*- coding: utf-8 -*-
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# Copyright (C) 2007 Edgewall Software
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at http://babel.edgewall.org/wiki/License.
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# This software consists of voluntary contributions made by many
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# individuals. For the exact contribution history, see the revision
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# history and logs, available at http://babel.edgewall.org/log/.
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"""Writing of files in the ``gettext`` MO (machine object) format.
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:see: `The Format of MO Files
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<http://www.gnu.org/software/gettext/manual/gettext.html#MO-Files>`_
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Writing of files in the ``gettext`` MO (machine object) format.
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:copyright: (c) 2013 by the Babel Team.
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:license: BSD, see LICENSE for more details.
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__all__ = ['write_mo']
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__docformat__ = 'restructuredtext en'
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from babel.messages.catalog import Catalog, Message
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from babel._compat import range_type
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"""Read a binary MO file from the given file-like object and return a
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corresponding `Catalog` object.
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:param fileobj: the file-like object to read the MO file from
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:note: The implementation of this function is heavily based on the
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``GNUTranslations._parse`` method of the ``gettext`` module in the
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filename = getattr(fileobj, 'name', '')
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unpack = struct.unpack
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# Parse the .mo file header, which consists of 5 little endian 32
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magic = unpack('<I', buf[:4])[0] # Are we big endian or little endian?
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version, msgcount, origidx, transidx = unpack('<4I', buf[4:20])
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elif magic == BE_MAGIC:
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version, msgcount, origidx, transidx = unpack('>4I', buf[4:20])
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raise IOError(0, 'Bad magic number', filename)
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# Now put all messages from the .mo file buffer into the catalog
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for i in range_type(0, msgcount):
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mlen, moff = unpack(ii, buf[origidx:origidx + 8])
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tlen, toff = unpack(ii, buf[transidx:transidx + 8])
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if mend < buflen and tend < buflen:
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raise IOError(0, 'File is corrupt', filename)
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# See if we're looking at GNU .mo conventions for metadata
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for item in tmsg.splitlines():
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key, value = item.split(b':', 1)
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lastkey = key = key.strip().lower()
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headers[key] = value.strip()
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headers[lastkey] += b'\n' + item
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if b'\x04' in msg: # context
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ctxt, msg = msg.split(b'\x04')
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if b'\x00' in msg: # plural forms
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msg = msg.split(b'\x00')
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tmsg = tmsg.split(b'\x00')
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msg = [x.decode(catalog.charset) for x in msg]
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tmsg = [x.decode(catalog.charset) for x in tmsg]
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msg = msg.decode(catalog.charset)
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tmsg = tmsg.decode(catalog.charset)
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catalog[msg] = Message(msg, tmsg, context=ctxt)
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# advance to next entry in the seek tables
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catalog.mime_headers = headers.items()
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def write_mo(fileobj, catalog, use_fuzzy=False):
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"""Write a catalog to the specified file-like object using the GNU MO file
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>>> from babel.messages import Catalog
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>>> from gettext import GNUTranslations
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>>> from StringIO import StringIO
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>>> catalog = Catalog(locale='en_US')
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>>> catalog.add('foo', 'Voh')
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>>> catalog.add((u'bar', u'baz'), (u'Bahr', u'Batz'))
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>>> catalog.add('fuz', 'Futz', flags=['fuzzy'])
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>>> catalog.add('Fizz', '')
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>>> catalog.add(('Fuzz', 'Fuzzes'), ('', ''))
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>>> buf = StringIO()
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>>> write_mo(buf, catalog)
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>>> translations = GNUTranslations(fp=buf)
added
removed
babel/messages/mofile.py
