| 1 | #! /usr/bin/env python
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| 2 | # -*- coding: iso-8859-1 -*-
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| 3 | # Written by Martin v. Löwis <[email protected]>
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| 4 |
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| 5 | """Generate binary message catalog from textual translation description.
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| 6 |
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| 7 | This program converts a textual Uniforum-style message catalog (.po file) into
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| 8 | a binary GNU catalog (.mo file). This is essentially the same function as the
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| 9 | GNU msgfmt program, however, it is a simpler implementation.
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| 10 |
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| 11 | Usage: msgfmt.py [OPTIONS] filename.po
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| 12 |
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| 13 | Options:
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| 14 | -o file
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| 15 | --output-file=file
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| 16 | Specify the output file to write to. If omitted, output will go to a
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| 17 | file named filename.mo (based off the input file name).
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| 18 |
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| 19 | -h
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| 20 | --help
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| 21 | Print this message and exit.
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| 22 |
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| 23 | -V
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| 24 | --version
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| 25 | Display version information and exit.
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| 26 | """
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| 27 |
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| 28 | import sys
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| 29 | import os
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| 30 | import getopt
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| 31 | import struct
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| 32 | import array
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| 33 |
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| 34 | __version__ = "1.1"
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| 35 |
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| 36 | MESSAGES = {}
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| 37 |
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| 38 |
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| 39 | |
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| 40 |
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| 41 | def usage(code, msg=''):
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| 42 | print >> sys.stderr, __doc__
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| 43 | if msg:
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| 44 | print >> sys.stderr, msg
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| 45 | sys.exit(code)
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| 46 |
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| 47 |
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| 48 | |
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| 49 |
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| 50 | def add(id, str, fuzzy):
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| 51 | "Add a non-fuzzy translation to the dictionary."
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| 52 | global MESSAGES
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| 53 | if not fuzzy and str:
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| 54 | MESSAGES[id] = str
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| 55 |
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| 56 |
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| 57 | |
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| 58 |
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| 59 | def generate():
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| 60 | "Return the generated output."
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| 61 | global MESSAGES
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| 62 | keys = MESSAGES.keys()
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| 63 | # the keys are sorted in the .mo file
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| 64 | keys.sort()
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| 65 | offsets = []
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| 66 | ids = strs = ''
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| 67 | for id in keys:
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| 68 | # For each string, we need size and file offset. Each string is NUL
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| 69 | # terminated; the NUL does not count into the size.
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| 70 | offsets.append((len(ids), len(id), len(strs), len(MESSAGES[id])))
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| 71 | ids += id + '\0'
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| 72 | strs += MESSAGES[id] + '\0'
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| 73 | output = ''
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| 74 | # The header is 7 32-bit unsigned integers. We don't use hash tables, so
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| 75 | # the keys start right after the index tables.
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| 76 | # translated string.
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| 77 | keystart = 7*4+16*len(keys)
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| 78 | # and the values start after the keys
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| 79 | valuestart = keystart + len(ids)
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| 80 | koffsets = []
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| 81 | voffsets = []
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| 82 | # The string table first has the list of keys, then the list of values.
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| 83 | # Each entry has first the size of the string, then the file offset.
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| 84 | for o1, l1, o2, l2 in offsets:
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| 85 | koffsets += [l1, o1+keystart]
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| 86 | voffsets += [l2, o2+valuestart]
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| 87 | offsets = koffsets + voffsets
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