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glibc/localedata/unicode-gen/utf8_compatibility.py
Carlos O'Donell cae9944a6c Fix whitespace related license issues. 
Several copies of the licenses in files contained whitespace related
problems.  Two cases are addressed here, the first is two spaces
after a period which appears between "PURPOSE." and "See". The other
is a space after the last forward slash in the URL. Both issues are
corrected and the licenses now match the official textual description
of the license (and the other license in the sources).

Since these whitespaces changes do not alter the paragraph structure of
the license, nor create new sentences, they do not change the license.
2024-10-07 18:08:16 -04:00

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Copyright (C) 2014-2024 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The GNU C Library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
'''
This script is useful for checking backward compatibility of newly
generated UTF-8 file from utf8_gen.py script
To see how this script is used, call it with the “-h” option:
$ ./utf8_compatibility.py -h
… prints usage message …
'''
import sys
import re
import argparse
import unicode_utils
def create_charmap_dictionary(file_name):
'''Create a dictionary for all code points found in the CHARMAP
section of a file
'''
with open(file_name, mode='r') as utf8_file:
charmap_dictionary = {}
for line in utf8_file:
if line.startswith('CHARMAP'):
break
for line in utf8_file:
if line.startswith('END CHARMAP'):
return charmap_dictionary
if line.startswith('%'):
continue
match = re.match(
r'^<U(?P<codepoint1>[0-9A-F]{4,8})>'
+r'(:?\.\.<U(?P<codepoint2>[0-9-A-F]{4,8})>)?'
+r'\s+(?P<hexutf8>(/x[0-9a-f]{2}){1,4})',
line)
if not match:
continue
codepoint1 = match.group('codepoint1')
codepoint2 = match.group('codepoint2')
if not codepoint2:
codepoint2 = codepoint1
for i in range(int(codepoint1, 16),
int(codepoint2, 16) + 1):
charmap_dictionary[i] = match.group('hexutf8')
sys.stderr.write('No “CHARMAP” or no “END CHARMAP” found in %s\n'
%file_name)
exit(1)
def check_charmap(original_file_name, new_file_name):
'''Report differences in the CHARMAP section between the old and the
new file
'''
print('************************************************************')
print('Report on CHARMAP:')
ocharmap = create_charmap_dictionary(original_file_name)
ncharmap = create_charmap_dictionary(new_file_name)
print('------------------------------------------------------------')
print('Total removed characters in newly generated CHARMAP: %d'
%len(set(ocharmap)-set(ncharmap)))
if ARGS.show_missing_characters:
for key in sorted(set(ocharmap)-set(ncharmap)):
print('removed: {:s} {:s} {:s}'.format(
unicode_utils.ucs_symbol(key),
ocharmap[key],
unicode_utils.UNICODE_ATTRIBUTES[key]['name'] \
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
print('------------------------------------------------------------')
changed_charmap = {}
for key in set(ocharmap).intersection(set(ncharmap)):
if ocharmap[key] != ncharmap[key]:
changed_charmap[key] = (ocharmap[key], ncharmap[key])
print('Total changed characters in newly generated CHARMAP: %d'
%len(changed_charmap))
if ARGS.show_changed_characters:
for key in sorted(changed_charmap):
print('changed: {:s} {:s}->{:s} {:s}'.format(
unicode_utils.ucs_symbol(key),
changed_charmap[key][0],
changed_charmap[key][1],
unicode_utils.UNICODE_ATTRIBUTES[key]['name'] \
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
print('------------------------------------------------------------')
print('Total added characters in newly generated CHARMAP: %d'
%len(set(ncharmap)-set(ocharmap)))
if ARGS.show_added_characters:
for key in sorted(set(ncharmap)-set(ocharmap)):
print('added: {:s} {:s} {:s}'.format(
unicode_utils.ucs_symbol(key),
ncharmap[key],
unicode_utils.UNICODE_ATTRIBUTES[key]['name'] \
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
def create_width_dictionary(file_name):
'''Create a dictionary for all code points found in the WIDTH
section of a file
'''
with open(file_name, mode='r') as utf8_file:
width_dictionary = {}
for line in utf8_file:
if line.startswith('WIDTH'):
break
for line in utf8_file:
if line.startswith('END WIDTH'):
return width_dictionary
match = re.match(
r'^<U(?P<codepoint1>[0-9A-F]{4,8})>'
+r'(:?\.\.\.<U(?P<codepoint2>[0-9-A-F]{4,8})>)?'
+r'\s+(?P<width>[02])',
line)
if not match:
continue
codepoint1 = match.group('codepoint1')
codepoint2 = match.group('codepoint2')
if not codepoint2:
codepoint2 = codepoint1
for i in range(int(codepoint1, 16),
int(codepoint2, 16) + 1):
width_dictionary[i] = int(match.group('width'))
sys.stderr.write('No “WIDTH” or no “END WIDTH” found in %s\n' %file)
def check_width(original_file_name, new_file_name):
'''Report differences in the WIDTH section between the old and the new
file
'''
print('************************************************************')
print('Report on WIDTH:')
owidth = create_width_dictionary(original_file_name)
nwidth = create_width_dictionary(new_file_name)
print('------------------------------------------------------------')
print('Total removed characters in newly generated WIDTH: %d'
%len(set(owidth)-set(nwidth)))
print('(Characters not in WIDTH get width 1 by default, '
+ 'i.e. these have width 1 now.)')
if ARGS.show_missing_characters:
for key in sorted(set(owidth)-set(nwidth)):
print('removed: {:s} '.format(unicode_utils.ucs_symbol(key))
+ '{:d} : '.format(owidth[key])
+ 'eaw={:s} '.format(
unicode_utils.EAST_ASIAN_WIDTHS[key]
if key in unicode_utils.EAST_ASIAN_WIDTHS else 'None')
+ 'category={:2s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['category']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'bidi={:3s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['bidi']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'name={:s}'.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['name']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
print('------------------------------------------------------------')
changed_width = {}
for key in set(owidth).intersection(set(nwidth)):
if owidth[key] != nwidth[key]:
changed_width[key] = (owidth[key], nwidth[key])
print('Total changed characters in newly generated WIDTH: %d'
%len(changed_width))
if ARGS.show_changed_characters:
for key in sorted(changed_width):
print('changed width: {:s} '.format(unicode_utils.ucs_symbol(key))
+ '{:d}->{:d} : '.format(changed_width[key][0],
changed_width[key][1])
+ 'eaw={:s} '.format(
unicode_utils.EAST_ASIAN_WIDTHS[key]
if key in unicode_utils.EAST_ASIAN_WIDTHS else 'None')
+ 'category={:2s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['category']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'bidi={:3s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['bidi']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'name={:s}'.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['name']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
print('------------------------------------------------------------')
print('Total added characters in newly generated WIDTH: %d'
%len(set(nwidth)-set(owidth)))
print('(Characters not in WIDTH get width 1 by default, '
+ 'i.e. these had width 1 before.)')
if ARGS.show_added_characters:
for key in sorted(set(nwidth)-set(owidth)):
print('added: {:s} '.format(unicode_utils.ucs_symbol(key))
+ '{:d} : '.format(nwidth[key])
+ 'eaw={:s} '.format(
unicode_utils.EAST_ASIAN_WIDTHS[key]
if key in unicode_utils.EAST_ASIAN_WIDTHS else 'None')
+ 'category={:2s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['category']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'bidi={:3s} '.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['bidi']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None')
+ 'name={:s}'.format(
unicode_utils.UNICODE_ATTRIBUTES[key]['name']
if key in unicode_utils.UNICODE_ATTRIBUTES else 'None'))
if __name__ == "__main__":
PARSER = argparse.ArgumentParser(
description='''
Compare the contents of LC_CTYPE in two files and check for errors.
''')
PARSER.add_argument(
'-o', '--old_utf8_file',
nargs='?',
required=True,
type=str,
help='The old UTF-8 file.')
PARSER.add_argument(
'-n', '--new_utf8_file',
nargs='?',
required=True,
type=str,
help='The new UTF-8 file.')
PARSER.add_argument(
'-u', '--unicode_data_file',
nargs='?',
type=str,
help='The UnicodeData.txt file to read.')
PARSER.add_argument(
'-e', '--east_asian_width_file',
nargs='?',
type=str,
help='The EastAsianWidth.txt file to read.')
PARSER.add_argument(
'-a', '--show_added_characters',
action='store_true',
help='Show characters which were added in detail.')
PARSER.add_argument(
'-m', '--show_missing_characters',
action='store_true',
help='Show characters which were removed in detail.')
PARSER.add_argument(
'-c', '--show_changed_characters',
action='store_true',
help='Show characters whose width was changed in detail.')
ARGS = PARSER.parse_args()
if ARGS.unicode_data_file:
unicode_utils.fill_attributes(ARGS.unicode_data_file)
if ARGS.east_asian_width_file:
unicode_utils.fill_east_asian_widths(ARGS.east_asian_width_file)
check_charmap(ARGS.old_utf8_file, ARGS.new_utf8_file)
check_width(ARGS.old_utf8_file, ARGS.new_utf8_file)
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