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https://github.com/SickGear/SickGear.git
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205 lines
6.4 KiB
Python
205 lines
6.4 KiB
Python
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#!/usr/bin/env python2
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# -*- coding: iso-8859-1 -*-
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"""Generate binary message catalog from textual translation description.
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This program converts a textual Uniforum-style message catalog (.po file) into
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a binary GNU catalog (.mo file). This is essentially the same function as the
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GNU msgfmt program, however, it is a simpler implementation.
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Usage: msgfmt.py [OPTIONS] filename.po
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Options:
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-o file
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--output-file=file
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Specify the output file to write to. If omitted, output will go to a
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file named filename.mo (based off the input file name).
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-h
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--help
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Print this message and exit.
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-V
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--version
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Display version information and exit.
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Written by Martin v. L<EFBFBD>wis <loewis@informatik.hu-berlin.de>,
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refactored / fixed by Thomas Waldmann <tw AT waldmann-edv DOT de>.
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"""
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import sys, os
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import getopt, struct, array
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__version__ = "1.3"
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class SyntaxErrorException(Exception):
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"""raised when having trouble parsing the po file content"""
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pass
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class MsgFmt(object):
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"""transform .po -> .mo format"""
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def __init__(self):
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self.messages = {}
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def make_filenames(self, filename, outfile=None):
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"""Compute .mo name from .po name or language"""
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if filename.endswith('.po'):
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infile = filename
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else:
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infile = filename + '.po'
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if outfile is None:
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outfile = os.path.splitext(infile)[0] + '.mo'
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return infile, outfile
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def add(self, id, str, fuzzy):
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"""Add a non-fuzzy translation to the dictionary."""
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if not fuzzy and str:
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self.messages[id] = str
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def read_po(self, lines):
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ID = 1
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STR = 2
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section = None
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fuzzy = False
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line_no = 0
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msgid = msgstr = ''
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# Parse the catalog
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for line in lines:
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line_no += 1
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# If we get a comment line after a msgstr, this is a new entry
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if line.startswith('#') and section == STR:
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self.add(msgid, msgstr, fuzzy)
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section = None
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fuzzy = False
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# Record a fuzzy mark
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if line.startswith('#,') and 'fuzzy' in line:
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fuzzy = True
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# Skip comments
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if line.startswith('#'):
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continue
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# Now we are in a msgid section, output previous section
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if line.startswith('msgid'):
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if section == STR:
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self.add(msgid, msgstr, fuzzy)
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fuzzy = False
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section = ID
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line = line[5:]
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msgid = msgstr = ''
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# Now we are in a msgstr section
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elif line.startswith('msgstr'):
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section = STR
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line = line[6:]
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# Skip empty lines
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line = line.strip()
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if not line:
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continue
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# XXX: Does this always follow Python escape semantics?
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line = eval(line)
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if section == ID:
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msgid += line
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elif section == STR:
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msgstr += line
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else:
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raise SyntaxErrorException('Syntax error on line %d, before:\n%s' % (line_no, line))
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# Add last entry
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if section == STR:
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self.add(msgid, msgstr, fuzzy)
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def generate_mo(self):
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"""Return the generated output."""
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keys = self.messages.keys()
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# the keys are sorted in the .mo file
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keys.sort()
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offsets = []
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ids = ''
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strs = ''
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for id in keys:
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# For each string, we need size and file offset. Each string is NUL
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# terminated; the NUL does not count into the size.
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offsets.append((len(ids), len(id), len(strs), len(self.messages[id])))
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ids += id + '\0'
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strs += self.messages[id] + '\0'
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output = []
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# The header is 7 32-bit unsigned integers. We don't use hash tables, so
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# the keys start right after the index tables.
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# translated string.
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keystart = 7*4 + 16*len(keys)
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# and the values start after the keys
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valuestart = keystart + len(ids)
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koffsets = []
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voffsets = []
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# The string table first has the list of keys, then the list of values.
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# Each entry has first the size of the string, then the file offset.
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for o1, l1, o2, l2 in offsets:
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koffsets += [l1, o1 + keystart]
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voffsets += [l2, o2 + valuestart]
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offsets = koffsets + voffsets
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output.append(struct.pack("Iiiiiii",
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0x950412deL, # Magic
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0, # Version
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len(keys), # # of entries
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7*4, # start of key index
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7*4 + len(keys)*8, # start of value index
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0, 0)) # size and offset of hash table
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output.append(array.array("i", offsets).tostring())
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output.append(ids)
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output.append(strs)
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return ''.join(output)
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def make(filename, outfile):
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mf = MsgFmt()
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infile, outfile = mf.make_filenames(filename, outfile)
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try:
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lines = file(infile).readlines()
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except IOError, msg:
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print >> sys.stderr, msg
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sys.exit(1)
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try:
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mf.read_po(lines)
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output = mf.generate_mo()
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except SyntaxErrorException, msg:
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print >> sys.stderr, msg
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try:
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open(outfile, "wb").write(output)
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except IOError, msg:
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print >> sys.stderr, msg
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def usage(code, msg=''):
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print >> sys.stderr, __doc__
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if msg:
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print >> sys.stderr, msg
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sys.exit(code)
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def main():
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'hVo:', ['help', 'version', 'output-file='])
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except getopt.error, msg:
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usage(1, msg)
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outfile = None
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# parse options
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for opt, arg in opts:
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if opt in ('-h', '--help'):
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usage(0)
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elif opt in ('-V', '--version'):
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print >> sys.stderr, "msgfmt.py", __version__
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sys.exit(0)
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elif opt in ('-o', '--output-file'):
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outfile = arg
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# do it
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if not args:
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print >> sys.stderr, 'No input file given'
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print >> sys.stderr, "Try `msgfmt --help' for more information."
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return
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for filename in args:
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make(filename, outfile)
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if __name__ == '__main__':
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main()
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