Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 221 insertions, 0 deletions

diff --git a/REORG.TODO/localedata/unicode-gen/gen_translit_cjk_compat.py b/REORG.TODO/localedata/unicode-gen/gen_translit_cjk_compat.py
new file mode 100644
index 0000000000..d9f705af92
--- /dev/null
+++ b/REORG.TODO/localedata/unicode-gen/gen_translit_cjk_compat.py
@@ -0,0 +1,221 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+#
+# Generate a translit_cjk_compat file from a UnicodeData file.
+# Copyright (C) 2015-2017 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_cjk_compat file from UnicodeData.txt
+
+To see how this script is used, call it with the “-h” option:
+
+    $ ./gen_translit_cjk_compat -h
+    … prints usage message …
+'''
+
+import argparse
+import time
+import sys
+import unicode_utils
+
+def read_input_file(filename):
+    '''Reads the original glibc translit_cjk_compat 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(unicode_utils.COMMENT_HEADER)
+        translit_file.write('\n')
+        translit_file.write('% Transliterations of CJK compatibility ')
+        translit_file.write('characters.\n')
+        translit_file.write('% Generated automatically from UnicodeData.txt '
+                            + 'by gen_translit_cjk_compat.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 special_decompose(code_point_list):
+    '''
+    Decompositions which are not in UnicodeData.txt at all but which
+    were used in the original translit_cjk_compat file in glibc and
+    which seem to make sense.  I want to keep the update of
+    translit_cjk_compat close to the spirit of the original file,
+    therefore I added this special decomposition rules here.
+    '''
+    special_decompose_dict = {
+        (0x2215,): [0x002F], # ∕ → /
+        (0x00B2,): [0x005E, 0x0032], # ² → ^2
+        (0x03BC,): [0x00B5], # μ → µ (GREEK SMALL LETTER MU → MICRO SIGN)
+        (0x2113,): [0x006C], # ℓ → l
+        (0x00B3,): [0x005E, 0x0033], # ³ → ^3
+        (0x00B5,): [0x0075], # µ → u
+        (0x03BC, 0x2113): [0x03BC, 0x006C], # μℓ → μl
+        (0x0072, 0x0061, 0x0064, 0x2215, 0x0073, 0x00B2): [
+            0x0072, 0x0061, 0x0064, 0x002F, 0x0073, 0x00B2],
+        (0x006D, 0x2215, 0x0073, 0x00B2): [0x006D, 0x002F, 0x0073, 0x00B2],
+    }
+    if tuple(code_point_list) in special_decompose_dict:
+        return special_decompose_dict[tuple(code_point_list)]
+    else:
+        return code_point_list
+
+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('<square>'):
+            decomposition = decomposition[9:]
+            decomposed_code_points = [[int(x, 16)
+                                       for x in decomposition.split(' ')]]
+            if decomposed_code_points[0]:
+                while True:
+                    special_decomposed_code_points = special_decompose(
+                        decomposed_code_points[-1])
+                    if (special_decomposed_code_points
+                            != decomposed_code_points[-1]):
+                        decomposed_code_points.append(
+                            special_decomposed_code_points)
+                        continue
+                    special_decomposed_code_points = []
+                    for decomposed_code_point in decomposed_code_points[-1]:
+                        special_decomposed_code_points += special_decompose(
+                            [decomposed_code_point])
+                    if (special_decomposed_code_points
+                            == decomposed_code_points[-1]):
+                        break
+                    decomposed_code_points.append(
+                        special_decomposed_code_points)
+                translit_file.write('% {:s}\n'.format(name))
+                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('\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 and name.startswith('CJK COMPATIBILITY IDEOGRAPH'):
+            decomposed_code_points = [int(x, 16)
+                                      for x in decomposition.split(' ')]
+            if len(decomposed_code_points) != 1:
+                sys.stderr.write(
+                    'Unexpected decomposition length {:x} {:s} {:s}\n'.format(
+                        code_point, name, decomposition))
+                exit(1)
+            translit_file.write('% {:s}\n'.format(name))
+            translit_file.write('{:s} '.format(
+                unicode_utils.ucs_symbol(code_point)))
+            for decomposed_code_point in decomposed_code_points:
+                translit_file.write('{:s}'.format(
+                    unicode_utils.ucs_symbol(decomposed_code_point)))
+            translit_file.write('\n')
+    translit_file.write('\n')
+
+if __name__ == "__main__":
+    PARSER = argparse.ArgumentParser(
+        description='''
+        Generate a translit_cjk_compat 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_cjk_compat
+        file.''')
+    PARSER.add_argument(
+        '-o', '--output_file',
+        nargs='?',
+        type=str,
+        default='translit_cjk_compat.new',
+        help='''The new translit_cjk_compat file, default: %(default)s.  If the
+        original glibc/localedata/locales/translit_cjk_compat 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)