зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
4.0 KiB
Raku
115 строки
4.0 KiB
Raku
#!/usr/local/bin/perl
|
|
#
|
|
# The contents of this file are subject to the Mozilla Public
|
|
# License Version 1.1 (the "License"); you may not use this file
|
|
# except in compliance with the License. You may obtain a copy of
|
|
# the License at http://www.mozilla.org/MPL/
|
|
#
|
|
# Software distributed under the License is distributed on an "AS
|
|
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
# implied. See the License for the specific language governing
|
|
# rights and limitations under the License.
|
|
#
|
|
# The Original Code is IBM code.
|
|
#
|
|
# The Initial Developer of the Original Code is IBM.
|
|
# Portions created by IBM are
|
|
# Copyright (C) International Business Machines
|
|
# Corporation, 2000. All Rights Reserved.
|
|
#
|
|
# Contributor(s): Simon Montagu
|
|
#
|
|
|
|
# This program generates the header file symmtable.h from the Unicode
|
|
# informative data file BidiMirroring.txt.
|
|
# See the comments in that file for details of its structure and contents.
|
|
#
|
|
# At the moment we only handle cases where there is another Unicode
|
|
# character whose glyph can serve as at least an adequate version of
|
|
# the mirror image of the original character's glyph. This leaves open
|
|
# the problem of how to provide mirrored glyphs for characters where
|
|
# this is not the case.
|
|
|
|
# Process the input file
|
|
$ucp = "[0-9a-fA-F]{4}"; # Unicode code point (4 successive hex digits) as a pattern to match
|
|
open ( UNICODATA , "< BidiMirroring.txt")
|
|
|| die "Cannot find BidiMirroring.txt.\
|
|
The file should be avaiable here:\
|
|
http://www.unicode.org/Public/UNIDATA/BidiMirroring.txt\n";
|
|
|
|
while (<UNICODATA>) {
|
|
chop;
|
|
if (/^($ucp); ($ucp) # (.+)/) { # If the line looks like this pattern
|
|
# (example: 0028; 0029 # LEFT PARENTHESIS)
|
|
@table[hex($1)]=hex($1) ^ hex($2); # Enter the character XOR its symmetric pair in the table
|
|
@isblock[hex(substr($1, 0, 2))]=1; # Remember this block
|
|
}
|
|
}
|
|
close(UNICODATA);
|
|
|
|
# Generate license and header
|
|
open ( OUT , "> ../base/src/symmtable.h")
|
|
|| die "cannot open output ../base/src/symmtable.h file";
|
|
$npl = <<END_OF_NPL;
|
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is IBM code.
|
|
*
|
|
* The Initial Developer of the Original Code is IBM.
|
|
* Portions created by IBM are
|
|
* Copyright (C) International Business Machines
|
|
* Corporation, 2000. All Rights Reserved.
|
|
*/
|
|
/*
|
|
DO NOT EDIT THIS DOCUMENT !!! THIS DOCUMENT IS GENERATED BY
|
|
mozilla/intl/unicharutil/tools/gensymmtable.pl
|
|
*/
|
|
END_OF_NPL
|
|
print OUT $npl;
|
|
|
|
# Generate data tables
|
|
foreach $block (0 .. 0xff) {
|
|
if (@isblock[$block]) {
|
|
printf OUT "\n/* Block U%02X__ */\n", $block;
|
|
printf OUT "const static PRUint8 symmtable_%02X[256] = {\n", $block;
|
|
print OUT "/* ";
|
|
foreach $byte (0 .. 0xf) {
|
|
printf OUT " _%X ", $byte;
|
|
}
|
|
print OUT "*/\n";
|
|
foreach $row (0 .. 0xf) {
|
|
printf OUT "/* %X_ */ ", $row;
|
|
foreach $byte (0 .. 0xf) {
|
|
$ix = ($block << 8) | ($row << 4) | ($byte);
|
|
printf OUT ("%#4x, ", @table[$ix]);
|
|
}
|
|
print OUT "\n";
|
|
}
|
|
print OUT "};\n";
|
|
}
|
|
}
|
|
|
|
# Generate conversion method
|
|
print OUT "\nstatic PRUint32 Mirrored(PRUint32 u)\n{\n";
|
|
print OUT " switch (u & 0xFFFFFF00) {\n";
|
|
print OUT " // XOR the character with the bitmap in the conversion table to give the symmetric equivalent\n";
|
|
foreach $block (0 .. 0xff) {
|
|
if (1==@isblock[$block]) {
|
|
printf OUT " case %#x:\n", $block * 256;
|
|
printf OUT " u ^= symmtable_%02X[u & 0xff];\n", $block;
|
|
print OUT " break;\n";
|
|
}
|
|
}
|
|
print OUT " }\n return u;\n}\n";
|
|
close(OUT);
|