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#!/usr/bin/env python3 # Copyright (c) 2012-2021 The Bitcoin Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. ''' Extract _("...") strings for translation and convert to Qt stringdefs so that they can be picked up by Qt linguist. ''' from subprocess import Popen, PIPE import operator import os import sys OUT_CPP="qt/bitcoinstrings.cpp" EMPTY=['""'] def parse_po(text): """ Parse 'po' format produced by xgettext. Return a list of (msgid,msgstr) tuples. """ messages = [] msgid = [] msgstr = [] in_msgid = False in_msgstr = False for line in text.split('\n'): line = line.rstrip('\r') if line.startswith('msgid '): if in_msgstr: messages.append((msgid, msgstr)) in_msgstr = False # message start in_msgid = True msgid = [line[6:]] elif line.startswith('msgstr '): in_msgid = False in_msgstr = True msgstr = [line[7:]] elif line.startswith('"'): if in_msgid: msgid.append(line) if in_msgstr: msgstr.append(line) if in_msgstr: messages.append((msgid, msgstr)) return messages files = sys.argv[1:] # xgettext -n --keyword=_ $FILES XGETTEXT=os.getenv('XGETTEXT', 'xgettext') if not XGETTEXT: print('Cannot extract strings: xgettext utility is not installed or not configured.',file=sys.stderr) print('Please install package "gettext" and re-run \'./configure\'.',file=sys.stderr) sys.exit(1) child = Popen([XGETTEXT,'--output=-','--from-code=utf-8','-n','--keyword=_'] + files, stdout=PIPE) (out, err) = child.communicate() messages = parse_po(out.decode('utf-8')) f = open(OUT_CPP, 'w', encoding="utf8") f.write(""" #include <QtGlobal> // Automatically generated by extract_strings_qt.py #ifdef __GNUC__ #define UNUSED __attribute__((unused)) #else #define UNUSED #endif """) f.write('static const char UNUSED *bitcoin_strings[] = {\n') f.write('QT_TRANSLATE_NOOP("bitcoin-core", "%s"),\n' % (os.getenv('COPYRIGHT_HOLDERS'),)) messages.sort(key=operator.itemgetter(0)) for (msgid, msgstr) in messages: if msgid != EMPTY: f.write('QT_TRANSLATE_NOOP("bitcoin-core", %s),\n' % ('\n'.join(msgid))) f.write('};\n') f.close()