1#!/usr/bin/env python
2
3# Copyright (C) 2015 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the 'License');
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an 'AS IS' BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17"""Generate case mappings from German pattern files."""
18
19import codecs
20
21for locale in ['de-1901', 'de-1996', 'de-ch-1901']:
22    all_chars = set()
23    with codecs.open('hyph-%s.pat.txt' % locale, 'r', 'UTF-8') as pat_file:
24        for line in pat_file:
25            line = line.strip()
26            all_chars |= set(line)
27    all_chars.remove('.')
28    all_chars -= set('0123456789')
29
30    with codecs.open('hyph-%s.chr.txt' % locale, 'w', 'UTF-8') as chr_file:
31        for c in sorted(all_chars):
32            # Since Android uses the chr files to map uppercase to lowercase,
33            # map lowercase sharp s to uppercase sharp s instead of SS.
34            uppercase = u'\u1E9E' if c == u'\u00DF' else c.upper()
35            chr_file.write('%s%s\n' % (c, uppercase))
36
37