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#!/usr/bin/env python3
# Parses all the .po files and generates binary language strings to be loaded
# at runtime via embedded data.
import os, sys
MODE = 'compile'
ESCAPES = {
'\\': '\\',
'"': '"',
'n': '\n',
'r': '\r',
't': '\t'
}
if '--new' in sys.argv:
MODE = 'new'
def unquote(string):
txt = string.strip()
if txt[0] != '"' or txt[-1] != '"':
raise Exception("invalid quoted string: " + string)
txt = txt[1:-1]
out = ''
is_escape = False
for c in txt:
if is_escape:
out += ESCAPES[c]
is_escape = False
continue
if c == '\\':
is_escape = True
else:
out += c
return out
def parse_po(src):
messages = []
is_multi = False
msg_id, msg_str = None, None
for line in open(src, 'rt', encoding='utf-8').readlines():
line = line.strip()
if is_multi:
if len(line) == 0:
if msg_id:
messages.append((msg_id, msg_str))
is_multi = False
continue
else:
msg_str += unquote(line)
if line.startswith('msgid'):
msg_id = unquote(line[6:])
elif line == 'msgstr ""':
# Multiline string.
is_multi = True
msg_str = ''
elif line.startswith('msgstr'):
msg_str = unquote(line[7:])
if msg_id:
messages.append((msg_id, msg_str))
return messages
if MODE == 'compile':
for src in os.listdir('.'):
if src.endswith('.po'):
# Make a binary blob with strings sorted by ID.
compiled = bytes()
for msg in sorted(parse_po(src)):
compiled += msg[0].encode('utf-8') + bytes([0])
compiled += msg[1].encode('utf-8') + bytes([0])
open(f'../res/lang/{src[:-3]}.bin', 'wb').write(compiled)
elif MODE == 'new':
messages = parse_po('en.po')
f = open('new.po', 'wt', encoding='utf-8')
for msg_id, _ in messages:
print(f'\nmsgid "{msg_id}"\nmsgstr ""\n', file=f)
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