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86 lines
2.4 KiB
86 lines
2.4 KiB
3 years ago
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#!/usr/bin/env python3
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# Copyright (c) 2012-2019 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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'''
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Extract _("...") strings for translation and convert to Qt stringdefs so that
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they can be picked up by Qt linguist.
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'''
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from subprocess import Popen, PIPE
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import operator
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import os
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import sys
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OUT_CPP="qt/bitcoinstrings.cpp"
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EMPTY=['""']
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def parse_po(text):
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"""
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Parse 'po' format produced by xgettext.
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Return a list of (msgid,msgstr) tuples.
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"""
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messages = []
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msgid = []
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msgstr = []
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in_msgid = False
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in_msgstr = False
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for line in text.split('\n'):
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line = line.rstrip('\r')
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if line.startswith('msgid '):
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if in_msgstr:
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messages.append((msgid, msgstr))
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in_msgstr = False
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# message start
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in_msgid = True
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msgid = [line[6:]]
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elif line.startswith('msgstr '):
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in_msgid = False
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in_msgstr = True
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msgstr = [line[7:]]
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elif line.startswith('"'):
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if in_msgid:
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msgid.append(line)
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if in_msgstr:
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msgstr.append(line)
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if in_msgstr:
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messages.append((msgid, msgstr))
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return messages
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files = sys.argv[1:]
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# xgettext -n --keyword=_ $FILES
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XGETTEXT=os.getenv('XGETTEXT', 'xgettext')
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if not XGETTEXT:
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print('Cannot extract strings: xgettext utility is not installed or not configured.',file=sys.stderr)
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print('Please install package "gettext" and re-run \'./configure\'.',file=sys.stderr)
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sys.exit(1)
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child = Popen([XGETTEXT,'--output=-','--from-code=utf-8','-n','--keyword=_'] + files, stdout=PIPE)
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(out, err) = child.communicate()
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messages = parse_po(out.decode('utf-8'))
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f = open(OUT_CPP, 'w', encoding="utf8")
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f.write("""
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#include <QtGlobal>
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// Automatically generated by extract_strings_qt.py
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#ifdef __GNUC__
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#define UNUSED __attribute__((unused))
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#else
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#define UNUSED
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#endif
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""")
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f.write('static const char UNUSED *bitcoin_strings[] = {\n')
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f.write('QT_TRANSLATE_NOOP("bitcoin-core", "%s"),\n' % (os.getenv('COPYRIGHT_HOLDERS'),))
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messages.sort(key=operator.itemgetter(0))
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for (msgid, msgstr) in messages:
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if msgid != EMPTY:
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f.write('QT_TRANSLATE_NOOP("bitcoin-core", %s),\n' % ('\n'.join(msgid)))
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f.write('};\n')
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f.close()
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