Update transliteration support to Unicode 7.0.0.

The transliteration files are now autogenerated from upstream Unicode
data.

1 files changed, 156 insertions, 0 deletions

diff --git a/localedata/unicode-gen/gen_translit_font.py b/localedata/unicode-gen/gen_translit_font.py
new file mode 100644
index 0000000000..072362223f
--- /dev/null
+++ b/localedata/unicode-gen/gen_translit_font.py
@@ -0,0 +1,156 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+#
+# Generate a translit_font file from a UnicodeData file.
+# Copyright (C) 2015 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
+# <http://www.gnu.org/licenses/>.
+
+'''
+Generate a translit_font file from UnicodeData.txt
+
+To see how this script is used, call it with the “-h” option:
+
+    $ ./gen_translit_font -h
+    … prints usage message …
+'''
+
+import argparse
+import time
+import unicode_utils
+
+def read_input_file(filename):
+    '''Reads the original glibc translit_font file to get the
+    original head and tail.
+
+    We want to replace only the part of the file between
+    “translit_start” and “translit_end”
+    '''
+    head = tail = ''
+    with open(filename, mode='r') as translit_file:
+        for line in translit_file:
+            head = head + line
+            if line.startswith('translit_start'):
+                break
+        for line in translit_file:
+            if line.startswith('translit_end'):
+                tail = line
+                break
+        for line in translit_file:
+            tail = tail + line
+    return (head, tail)
+
+def output_head(translit_file, unicode_version, head=''):
+    '''Write the header of the output file, i.e. the part of the file
+    before the “translit_start” line.
+    '''
+    if ARGS.input_file and head:
+        translit_file.write(head)
+    else:
+        translit_file.write('escape_char /\n')
+        translit_file.write('comment_char %\n')
+        translit_file.write('\n')
+        translit_file.write('% Transliterations of font equivalents.\n')
+        translit_file.write('% Generated automatically from UnicodeData.txt '
+                            + 'by gen_translit_font.py '
+                            + 'on {:s} '.format(time.strftime('%Y-%m-%d'))
+                            + 'for Unicode {:s}.\n'.format(unicode_version))
+        translit_file.write('\n')
+        translit_file.write('LC_CTYPE\n')
+        translit_file.write('\n')
+        translit_file.write('translit_start\n')
+
+def output_tail(translit_file, tail=''):
+    '''Write the tail of the output file'''
+    if ARGS.input_file and tail:
+        translit_file.write(tail)
+    else:
+        translit_file.write('translit_end\n')
+        translit_file.write('\n')
+        translit_file.write('END LC_CTYPE\n')
+
+def output_transliteration(translit_file):
+    '''Write the new transliteration to the output file'''
+    translit_file.write('\n')
+    for code_point in sorted(unicode_utils.UNICODE_ATTRIBUTES):
+        name = unicode_utils.UNICODE_ATTRIBUTES[code_point]['name']
+        decomposition = unicode_utils.UNICODE_ATTRIBUTES[
+            code_point]['decomposition']
+        if decomposition.startswith('<font>'):
+            decomposition = decomposition[7:]
+            decomposed_code_points = [[int(x, 16)
+                                       for x in decomposition.split(' ')]]
+            if decomposed_code_points[0]:
+                translit_file.write('{:s} '.format(
+                    unicode_utils.ucs_symbol(code_point)))
+                for index in range(0, len(decomposed_code_points)):
+                    if index > 0:
+                        translit_file.write(';')
+                    if len(decomposed_code_points[index]) > 1:
+                        translit_file.write('"')
+                    for decomposed_code_point in decomposed_code_points[index]:
+                        translit_file.write('{:s}'.format(
+                            unicode_utils.ucs_symbol(decomposed_code_point)))
+                    if len(decomposed_code_points[index]) > 1:
+                        translit_file.write('"')
+                translit_file.write(' % {:s}\n'.format(name))
+    translit_file.write('\n')
+
+if __name__ == "__main__":
+    PARSER = argparse.ArgumentParser(
+        description='''
+        Generate a translit_font file from UnicodeData.txt.
+        ''')
+    PARSER.add_argument(
+        '-u', '--unicode_data_file',
+        nargs='?',
+        type=str,
+        default='UnicodeData.txt',
+        help=('The UnicodeData.txt file to read, '
+              + 'default: %(default)s'))
+    PARSER.add_argument(
+        '-i', '--input_file',
+        nargs='?',
+        type=str,
+        help=''' The original glibc/localedata/locales/translit_font
+        file.''')
+    PARSER.add_argument(
+        '-o', '--output_file',
+        nargs='?',
+        type=str,
+        default='translit_font.new',
+        help='''The new translit_font file, default: %(default)s.  If the
+        original glibc/localedata/locales/translit_font file has
+        been given as an option, the header up to the
+        “translit_start” line and the tail from the “translit_end”
+        line to the end of the file will be copied unchanged into the
+        output file.  ''')
+    PARSER.add_argument(
+        '--unicode_version',
+        nargs='?',
+        required=True,
+        type=str,
+        help='The Unicode version of the input files used.')
+    ARGS = PARSER.parse_args()
+
+    unicode_utils.fill_attributes(ARGS.unicode_data_file)
+    HEAD = TAIL = ''
+    if ARGS.input_file:
+        (HEAD, TAIL) = read_input_file(ARGS.input_file)
+    with open(ARGS.output_file, mode='w') as TRANSLIT_FILE:
+        output_head(TRANSLIT_FILE, ARGS.unicode_version, head=HEAD)
+        output_transliteration(TRANSLIT_FILE)
+        output_tail(TRANSLIT_FILE, tail=TAIL)