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i18n-import-messages.py
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Tue, Jun 25, 09:34

i18n-import-messages.py
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## This file is part of the CERN Document Server Software (CDSware).
## Copyright (C) 2002, 2003, 2004, 2005 CERN.
##
## The CDSware 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.
##
## The CDSware 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 CDSware; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
This script extracts translations from messages.py and writes them in
a format suitable for gettext.
"""
import sys
import re
if len(sys.argv) == 1 or sys.argv[0] in ["-h", "--help"]:
print "Usage: i18n-import-messages.py msgfile"
sys.exit()
msgfile = sys.argv[1]
# Parse the wml file with a custom parser
_tag_re = re.compile('(</?[\w\s=_-]+>)')
def lexer(filename):
"""This generator returns a sequence of tokens (type, value) from
the content of the messages.wml file. The token types can be tag
opening ('<'), tag closing ('>') or plain text ('T').
"""
for line in open(filename):
if line.startswith('#'):
continue
line = line.strip()
if not line:
continue
for part in _tag_re.split (line):
if part and part[0] == '<':
if part[1] == '/':
yield ('>', part[2:-1])
else:
args = part[1:-1].split()
yield ('<', args)
else:
yield ('T', part)
yield ('T', ' ')
return
OUTSIDE, IN_MSG, IN_TEXT = range(3)
state = OUTSIDE
db = {}
all_langs = {}
for token, value in lexer(msgfile):
if state == OUTSIDE:
if token == 'T':
continue
if token != '<' or value[0] != 'define-tag':
raise SyntaxError ('unexpected token %s' % repr((token, value)))
state = IN_MSG
msg = value[1]
wsd = 'whitespace=delete' in value
table = {}
continue
elif state == IN_MSG:
if token == '>':
assert value == 'define-tag'
state = OUTSIDE
db[msg] = table
continue
if token == '<':
state = IN_TEXT
ln = value[0]
all_langs[ln] = True
text = ''
continue
elif state == IN_TEXT:
if token == '>':
if value == ln:
table[ln] = text
state = IN_MSG
else:
# this is an internal token
text += '</%s>' % value
continue
if token == 'T':
text += value
continue
if token == '<':
text += '<%s>' % ' '.join(value)
continue
msgs = [x for x in db.keys()]
msgs.sort()
def quote(text):
"""Normalize and quote a string to be used in a po file."""
return text.\
strip().\
replace('\\"', '"').\
replace(' ', ' ').\
replace('\\', '\\\\').\
replace('\n', '\\\\n').\
replace('"', '\\"')
for lang in all_langs.keys():
out = open('compendium-%s.po' % lang, 'w')
# Output the PO file
out.write("""\
# Temporary Compendium file, extracted from messages.py
msgid ""
msgstr ""
"Project-Id-Version: CDSware 0.7\\n"
"POT-Creation-Date: Thu Nov 4 23:13:16 2004\\n"
"PO-Revision-Date: 2004-11-03 18:26+2\\n"
"Last-Translator: TIBERIU DONDERA <tiberiu.dondera (at) epfl.ch>\\n"
"Language-Team: LANGUAGE <LL@li.org>\\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=UTF-8\\n"
"Content-Transfer-Encoding: 8-bit\\n"
""")
for key in msgs:
try:
ref = db[key]['en']
trs = db[key][lang]
except KeyError:
print >> sys.stderr, "warning: cannot translate %s in %s" % (key, lang)
continue
out.write('#: %s\n' % key)
out.write('msgid "%s"\n' % quote(ref))
out.write('msgstr "%s"\n\n' % quote(trs))

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