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#!/usr/bin/env python3
# Copyright (C) 1998, 1999 Tom Tromey
# Copyright (C) 2001 Red Hat Software
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
"""
gen-casefold-txt.py - Generate test cases for casefolding from Unicode data.
See http://www.unicode.org/Public/UNIDATA/UnicodeCharacterDatabase.html
Usage:
I consider the output of this program to be unrestricted.
Use it as you will.
"""
import sys
import argparse
def main(argv):
parser = argparse.ArgumentParser(
description="Generate test cases for casefolding from Unicode data"
)
parser.add_argument("UNICODE-VERSION")
parser.add_argument("CaseFolding.txt")
args = parser.parse_args(argv[1:])
version = getattr(args, "UNICODE-VERSION")
filename = getattr(args, "CaseFolding.txt")
print(
"""\
# Test cases generated from Unicode {} data
# by gen-casefold-txt.py. Do not edit.
#
# Some special hand crafted tests
#
AaBbCc@@\taabbcc@@
#
# Now the automatic tests
#""".format(
version
)
)
# Names of fields in the CaseFolding table
CODE, STATUS, MAPPING = range(3)
with open(filename, encoding="utf-8") as fileobj:
for line in fileobj:
# strip comments and skip empty lines
line = line.split("#", 1)[0].strip()
if not line:
continue
fields = [f.strip() for f in line.split(";", 3)[:3]]
if len(fields) != 3:
raise SystemExit(
"Entry for %s has wrong number of fields (%d)"
% (fields[CODE], len(fields))
)
status = fields[STATUS]
# skip simple and Turkic mappings
if status in "ST":
continue
code = chr(int(fields[CODE], 16))
values = "".join([chr(int(v, 16)) for v in fields[MAPPING].split()])
print("{}\t{}".format(code, values))
if __name__ == "__main__":
sys.exit(main(sys.argv))
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