]>
Commit | Line | Data |
---|---|---|
dd8e8e54 CD |
1 | #!/usr/bin/python3 |
2 | # -*- coding: utf-8 -*- | |
3 | # | |
4 | # Generate a translit_font file from a UnicodeData file. | |
6d7e8eda | 5 | # Copyright (C) 2015-2023 Free Software Foundation, Inc. |
dd8e8e54 CD |
6 | # This file is part of the GNU C Library. |
7 | # | |
8 | # The GNU C Library is free software; you can redistribute it and/or | |
9 | # modify it under the terms of the GNU Lesser General Public | |
10 | # License as published by the Free Software Foundation; either | |
11 | # version 2.1 of the License, or (at your option) any later version. | |
12 | # | |
13 | # The GNU C Library is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | # Lesser General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU Lesser General Public | |
19 | # License along with the GNU C Library; if not, see | |
5a82c748 | 20 | # <https://www.gnu.org/licenses/>. |
dd8e8e54 CD |
21 | |
22 | ''' | |
23 | Generate a translit_font file from UnicodeData.txt | |
24 | ||
25 | To see how this script is used, call it with the “-h” option: | |
26 | ||
27 | $ ./gen_translit_font -h | |
28 | … prints usage message … | |
29 | ''' | |
30 | ||
31 | import argparse | |
32 | import time | |
33 | import unicode_utils | |
34 | ||
35 | def read_input_file(filename): | |
36 | '''Reads the original glibc translit_font file to get the | |
37 | original head and tail. | |
38 | ||
39 | We want to replace only the part of the file between | |
40 | “translit_start” and “translit_end” | |
41 | ''' | |
42 | head = tail = '' | |
43 | with open(filename, mode='r') as translit_file: | |
44 | for line in translit_file: | |
45 | head = head + line | |
46 | if line.startswith('translit_start'): | |
47 | break | |
48 | for line in translit_file: | |
49 | if line.startswith('translit_end'): | |
50 | tail = line | |
51 | break | |
52 | for line in translit_file: | |
53 | tail = tail + line | |
54 | return (head, tail) | |
55 | ||
56 | def output_head(translit_file, unicode_version, head=''): | |
57 | '''Write the header of the output file, i.e. the part of the file | |
58 | before the “translit_start” line. | |
59 | ''' | |
60 | if ARGS.input_file and head: | |
61 | translit_file.write(head) | |
62 | else: | |
63 | translit_file.write('escape_char /\n') | |
64 | translit_file.write('comment_char %\n') | |
277da2ab | 65 | translit_file.write(unicode_utils.COMMENT_HEADER) |
dd8e8e54 CD |
66 | translit_file.write('\n') |
67 | translit_file.write('% Transliterations of font equivalents.\n') | |
68 | translit_file.write('% Generated automatically from UnicodeData.txt ' | |
69 | + 'by gen_translit_font.py ' | |
70 | + 'on {:s} '.format(time.strftime('%Y-%m-%d')) | |
71 | + 'for Unicode {:s}.\n'.format(unicode_version)) | |
72 | translit_file.write('\n') | |
73 | translit_file.write('LC_CTYPE\n') | |
74 | translit_file.write('\n') | |
75 | translit_file.write('translit_start\n') | |
76 | ||
77 | def output_tail(translit_file, tail=''): | |
78 | '''Write the tail of the output file''' | |
79 | if ARGS.input_file and tail: | |
80 | translit_file.write(tail) | |
81 | else: | |
82 | translit_file.write('translit_end\n') | |
83 | translit_file.write('\n') | |
84 | translit_file.write('END LC_CTYPE\n') | |
85 | ||
86 | def output_transliteration(translit_file): | |
87 | '''Write the new transliteration to the output file''' | |
88 | translit_file.write('\n') | |
89 | for code_point in sorted(unicode_utils.UNICODE_ATTRIBUTES): | |
90 | name = unicode_utils.UNICODE_ATTRIBUTES[code_point]['name'] | |
91 | decomposition = unicode_utils.UNICODE_ATTRIBUTES[ | |
92 | code_point]['decomposition'] | |
93 | if decomposition.startswith('<font>'): | |
94 | decomposition = decomposition[7:] | |
95 | decomposed_code_points = [[int(x, 16) | |
96 | for x in decomposition.split(' ')]] | |
97 | if decomposed_code_points[0]: | |
98 | translit_file.write('{:s} '.format( | |
99 | unicode_utils.ucs_symbol(code_point))) | |
100 | for index in range(0, len(decomposed_code_points)): | |
101 | if index > 0: | |
102 | translit_file.write(';') | |
103 | if len(decomposed_code_points[index]) > 1: | |
104 | translit_file.write('"') | |
105 | for decomposed_code_point in decomposed_code_points[index]: | |
106 | translit_file.write('{:s}'.format( | |
107 | unicode_utils.ucs_symbol(decomposed_code_point))) | |
108 | if len(decomposed_code_points[index]) > 1: | |
109 | translit_file.write('"') | |
110 | translit_file.write(' % {:s}\n'.format(name)) | |
111 | translit_file.write('\n') | |
112 | ||
113 | if __name__ == "__main__": | |
114 | PARSER = argparse.ArgumentParser( | |
115 | description=''' | |
116 | Generate a translit_font file from UnicodeData.txt. | |
117 | ''') | |
118 | PARSER.add_argument( | |
119 | '-u', '--unicode_data_file', | |
120 | nargs='?', | |
121 | type=str, | |
122 | default='UnicodeData.txt', | |
123 | help=('The UnicodeData.txt file to read, ' | |
124 | + 'default: %(default)s')) | |
125 | PARSER.add_argument( | |
126 | '-i', '--input_file', | |
127 | nargs='?', | |
128 | type=str, | |
129 | help=''' The original glibc/localedata/locales/translit_font | |
130 | file.''') | |
131 | PARSER.add_argument( | |
132 | '-o', '--output_file', | |
133 | nargs='?', | |
134 | type=str, | |
135 | default='translit_font.new', | |
136 | help='''The new translit_font file, default: %(default)s. If the | |
137 | original glibc/localedata/locales/translit_font file has | |
138 | been given as an option, the header up to the | |
139 | “translit_start” line and the tail from the “translit_end” | |
140 | line to the end of the file will be copied unchanged into the | |
141 | output file. ''') | |
142 | PARSER.add_argument( | |
143 | '--unicode_version', | |
144 | nargs='?', | |
145 | required=True, | |
146 | type=str, | |
147 | help='The Unicode version of the input files used.') | |
148 | ARGS = PARSER.parse_args() | |
149 | ||
150 | unicode_utils.fill_attributes(ARGS.unicode_data_file) | |
151 | HEAD = TAIL = '' | |
152 | if ARGS.input_file: | |
153 | (HEAD, TAIL) = read_input_file(ARGS.input_file) | |
154 | with open(ARGS.output_file, mode='w') as TRANSLIT_FILE: | |
155 | output_head(TRANSLIT_FILE, ARGS.unicode_version, head=HEAD) | |
156 | output_transliteration(TRANSLIT_FILE) | |
157 | output_tail(TRANSLIT_FILE, tail=TAIL) |