Mega Code Archive

Generate binary message catalog from textual translation description

""" PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 -------------------------------------------- 1. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and the Individual or Organization ("Licensee") accessing and otherwise using this software ("Python") in source or binary form and its associated documentation. 2. Subject to the terms and conditions of this License Agreement, PSF hereby grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, analyze, test, perform and/or display publicly, prepare derivative works, distribute, and otherwise use Python alone or in any derivative version, provided, however, that PSF's License Agreement and PSF's notice of copyright, i.e., "Copyright (c) 2001, 2002, 2003, 2004 Python Software Foundation; All Rights Reserved" are retained in Python alone or in any derivative version prepared by Licensee. 3. In the event Licensee prepares a derivative work that is based on or incorporates Python or any part thereof, and wants to make the derivative work available to others as provided herein, then Licensee hereby agrees to include in any such work a brief summary of the changes made to Python. 4. PSF is making Python available to Licensee on an "AS IS" basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT INFRINGE ANY THIRD PARTY RIGHTS. 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 6. This License Agreement will automatically terminate upon a material breach of its terms and conditions. 7. Nothing in this License Agreement shall be deemed to create any relationship of agency, partnership, or joint venture between PSF and Licensee. This License Agreement does not grant permission to use PSF trademarks or trade name in a trademark sense to endorse or promote products or services of Licensee, or any third party. 8. By copying, installing or otherwise using Python, Licensee agrees to be bound by the terms and conditions of this License Agreement. """ #! /usr/bin/env python # -*- coding: iso-8859-1 -*- # Written by Martin v. Lis <loewis@informatik.hu-berlin.de> """Generate binary message catalog from textual translation description. This program converts a textual Uniforum-style message catalog (.po file) into a binary GNU catalog (.mo file). This is essentially the same function as the GNU msgfmt program, however, it is a simpler implementation. Usage: msgfmt.py [OPTIONS] filename.po Options: -o file --output-file=file Specify the output file to write to. If omitted, output will go to a file named filename.mo (based off the input file name). -h --help Print this message and exit. -V --version Display version information and exit. """ import sys import os import getopt import struct import array __version__ = "1.1" MESSAGES = {} def usage(code, msg=''): print >> sys.stderr, __doc__ if msg: print >> sys.stderr, msg sys.exit(code) def add(id, str, fuzzy): "Add a non-fuzzy translation to the dictionary." global MESSAGES if not fuzzy and str: MESSAGES[id] = str def generate(): "Return the generated output." global MESSAGES keys = MESSAGES.keys() # the keys are sorted in the .mo file keys.sort() offsets = [] ids = strs = '' for id in keys: # For each string, we need size and file offset. Each string is NUL # terminated; the NUL does not count into the size. offsets.append((len(ids), len(id), len(strs), len(MESSAGES[id]))) ids += id + '\0' strs += MESSAGES[id] + '\0' output = '' # The header is 7 32-bit unsigned integers. We don't use hash tables, so # the keys start right after the index tables. # translated string. keystart = 7*4+16*len(keys) # and the values start after the keys valuestart = keystart + len(ids) koffsets = [] voffsets = [] # The string table first has the list of keys, then the list of values. # Each entry has first the size of the string, then the file offset. for o1, l1, o2, l2 in offsets: koffsets += [l1, o1+keystart] voffsets += [l2, o2+valuestart] offsets = koffsets + voffsets output = struct.pack("Iiiiiii", 0x950412deL, # Magic 0, # Version len(keys), # # of entries 7*4, # start of key index 7*4+len(keys)*8, # start of value index 0, 0) # size and offset of hash table output += array.array("i", offsets).tostring() output += ids output += strs return output def make(filename, outfile): ID = 1 STR = 2 # Compute .mo name from .po name and arguments if filename.endswith('.po'): infile = filename else: infile = filename + '.po' if outfile is None: outfile = os.path.splitext(infile)[0] + '.mo' try: lines = open(infile).readlines() except IOError, msg: print >> sys.stderr, msg sys.exit(1) section = None fuzzy = 0 # Parse the catalog lno = 0 for l in lines: lno += 1 # If we get a comment line after a msgstr, this is a new entry if l[0] == '#' and section == STR: add(msgid, msgstr, fuzzy) section = None fuzzy = 0 # Record a fuzzy mark if l[:2] == '#,' and l.find('fuzzy'): fuzzy = 1 # Skip comments if l[0] == '#': continue # Now we are in a msgid section, output previous section if l.startswith('msgid'): if section == STR: add(msgid, msgstr, fuzzy) section = ID l = l[5:] msgid = msgstr = '' # Now we are in a msgstr section elif l.startswith('msgstr'): section = STR l = l[6:] # Skip empty lines l = l.strip() if not l: continue # XXX: Does this always follow Python escape semantics? l = eval(l) if section == ID: msgid += l elif section == STR: msgstr += l else: print >> sys.stderr, 'Syntax error on %s:%d' % (infile, lno), \ 'before:' print >> sys.stderr, l sys.exit(1) # Add last entry if section == STR: add(msgid, msgstr, fuzzy) # Compute output output = generate() try: open(outfile,"wb").write(output) except IOError,msg: print >> sys.stderr, msg def main(): try: opts, args = getopt.getopt(sys.argv[1:], 'hVo:', ['help', 'version', 'output-file=']) except getopt.error, msg: usage(1, msg) outfile = None # parse options for opt, arg in opts: if opt in ('-h', '--help'): usage(0) elif opt in ('-V', '--version'): print >> sys.stderr, "msgfmt.py", __version__ sys.exit(0) elif opt in ('-o', '--output-file'): outfile = arg # do it if not args: print >> sys.stderr, 'No input file given' print >> sys.stderr, "Try 'msgfmt --help' for more information." return for filename in args: make(filename, outfile) if __name__ == '__main__': main()