/usr/share/pyshared/imdb/locale/msgfmt.py is in python-imdbpy 5.0-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | #!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
"""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.
Written by Martin v. Löwis <loewis@informatik.hu-berlin.de>,
refactored / fixed by Thomas Waldmann <tw AT waldmann-edv DOT de>.
"""
import sys, os
import getopt, struct, array
__version__ = "1.3"
class SyntaxErrorException(Exception):
"""raised when having trouble parsing the po file content"""
pass
class MsgFmt(object):
"""transform .po -> .mo format"""
def __init__(self):
self.messages = {}
def make_filenames(self, filename, outfile=None):
"""Compute .mo name from .po name or language"""
if filename.endswith('.po'):
infile = filename
else:
infile = filename + '.po'
if outfile is None:
outfile = os.path.splitext(infile)[0] + '.mo'
return infile, outfile
def add(self, id, str, fuzzy):
"""Add a non-fuzzy translation to the dictionary."""
if not fuzzy and str:
self.messages[id] = str
def read_po(self, lines):
ID = 1
STR = 2
section = None
fuzzy = False
line_no = 0
msgid = msgstr = ''
# Parse the catalog
for line in lines:
line_no += 1
# If we get a comment line after a msgstr, this is a new entry
if line.startswith('#') and section == STR:
self.add(msgid, msgstr, fuzzy)
section = None
fuzzy = False
# Record a fuzzy mark
if line.startswith('#,') and 'fuzzy' in line:
fuzzy = True
# Skip comments
if line.startswith('#'):
continue
# Now we are in a msgid section, output previous section
if line.startswith('msgid'):
if section == STR:
self.add(msgid, msgstr, fuzzy)
fuzzy = False
section = ID
line = line[5:]
msgid = msgstr = ''
# Now we are in a msgstr section
elif line.startswith('msgstr'):
section = STR
line = line[6:]
# Skip empty lines
line = line.strip()
if not line:
continue
# XXX: Does this always follow Python escape semantics?
line = eval(line)
if section == ID:
msgid += line
elif section == STR:
msgstr += line
else:
raise SyntaxErrorException('Syntax error on line %d, before:\n%s' % (line_no, line))
# Add last entry
if section == STR:
self.add(msgid, msgstr, fuzzy)
def generate_mo(self):
"""Return the generated output."""
keys = self.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(self.messages[id])))
ids += id + '\0'
strs += self.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.append(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.append(array.array("i", offsets).tostring())
output.append(ids)
output.append(strs)
return ''.join(output)
def make(filename, outfile):
mf = MsgFmt()
infile, outfile = mf.make_filenames(filename, outfile)
try:
lines = file(infile).readlines()
except IOError, msg:
print >> sys.stderr, msg
sys.exit(1)
try:
mf.read_po(lines)
output = mf.generate_mo()
except SyntaxErrorException, msg:
print >> sys.stderr, msg
try:
open(outfile, "wb").write(output)
except IOError, msg:
print >> sys.stderr, msg
def usage(code, msg=''):
print >> sys.stderr, __doc__
if msg:
print >> sys.stderr, msg
sys.exit(code)
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()
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