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RetroZilla/intl/unicharutil/tools/gencasetable.pl
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

397 lines
14 KiB
Perl
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#!/usr/bin/perl
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# 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 mozilla.org code.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 1999
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
# If you run this script because the Unicode standard has been updated,
# check xpcom/string/public/nsCharTraits.h to see whether
# nsCharTraits<PRUnichar>::ASCIIToLower needs to be updated. It only
# needs to be update if the Unicode consortium adds (or removes)
# a Unicode character whose lowercase form is an ASCII character.
# Currently there are only two such characters: KELVIN SIGN and
# LATIN CAPITAL LETTER I WITH DOT ABOVE.
######################################################################
#
# Initial global variable
#
######################################################################
%utot = ();
$ui=0;
$li=0;
######################################################################
#
# Open the unicode database file
#
######################################################################
open ( UNICODATA , "< UnicodeData-Latest.txt")
|| die "cannot find UnicodeData-Latest.txt";
######################################################################
#
# Open the output file
#
######################################################################
open ( OUT , "> ../src/casetable.h")
|| die "cannot open output ../src/casetable.h file";
######################################################################
#
# Generate license and header
#
######################################################################
$npl = <<END_OF_NPL;
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
DO NOT EDIT THIS DOCUMENT !!! THIS DOCUMENT IS GENERATED BY
mozilla/intl/unicharutil/tools/gencasetable.pl
*/
END_OF_NPL
print OUT $npl;
print OUT "#include \"nscore.h\" \n\n";
######################################################################
#
# Process the file line by line
#
######################################################################
while(<UNICODATA>) {
chop;
######################################################################
#
# Get value from fields
#
######################################################################
@f = split(/;/ , $_);
$c = $f[0]; # The unicode value
$u = $f[12]; # The upper case
$l = $f[13]; # The lower case
$t = $f[14]; # The title case
#
# print $c . " | " . $u . " | " . $l . " | " . $t . "\n";
#
######################################################################
#
# Process title case for this entry
#
######################################################################
#
# if upper case is not equal to title case , store into
# %utot hash
#
if(($t ne "") && ($u ne "") && ( $u ne $t )) {
#
# print $c . " | " . $u . " | " . $l . " | " . $t . "\n";
#
$utot{$u} = $t;
}
$cv = hex($c); # convert the Unicode value into integer
######################################################################
#
# Process upper case for this entry
#
######################################################################
if( $u ne "") { # if upper case exist
$uvalue = hex($u); # convert the upper case value into integer
######################################################################
# store related information into arrays
# @ucv - unicode value
# @uv - upper case value (debug only)
# @ud - difference between unicode and upper case
# @ulastd - difference between unicode and last unicode in the entry
######################################################################
$ucv[$ui] = $cv;
$uv[$ui] = $uvalue;
$ud[$ui] = 0x0000FFFF & ($uvalue - $cv);
if( $ui ne 0) {
$ulastd[$ui] = $cv - $ucv[$ui-1];
}
$ui++;
}
######################################################################
#
# Process lower case for this entry
#
######################################################################
if( $l ne "") { # if lower case exist
$lvalue = hex($l); # convert the lower case value into integer
######################################################################
# store related information into arrays
# @lcv - unicode value
# @lv - lower case value (debug only)
# @ld - difference between unicode and lower case
# @llastd - difference between unicode and last unicode in the entry
######################################################################
$lcv[$li] = $cv;
$lv[$li] = $lvalue;
$ld[$li] = 0x0000FFFF & ($lvalue - $cv);
if( $li ne 0) {
$llastd[$li] = $cv - $lcv[$li-1];
}
$li++;
}
if(( $l ne "") || ($u ne "")) { # if lower or upper case exist
$idx = $cv >> 13;
$bits = 1 << (($cv >> 8) & 0x1F) ;
$blk[$idx] |= $bits;
}
}
######################################################################
#
# Print out all the tables
#
######################################################################
######################################################################
#
# Print out upper to title case mapping
#
######################################################################
$ttotal = 0;
print OUT "static const PRUnichar gUpperToTitle[] = { \n";
while(($upper, $title) = each(%utot)) {
print OUT " 0x" . $upper . ", 0x" . $utot{$upper} . ", \n";
$ttotal++;
}
print OUT "};\n\n";
print OUT "static const PRUint32 gUpperToTitleItems = $ttotal;\n\n";
######################################################################
#
# Print out gToUpper table
#
######################################################################
print OUT "static const PRUint16 gToUpper[] = \n";
print OUT "{ /* From To Every Diff */ \n";
$utotal=0;
$ufrom = 0; # remember the start of the output item
for ($i = 0; $i <= $#ucv; $i++)
{
if(0 eq $i) {
######################################################################
#
# Print the first item in the array
#
######################################################################
$ufrom = $ucv[0];
printf OUT " 0x%04x, " , $ucv[0];
} else {
######################################################################
#
# Print all the item except the first and last one
# only print if the upper case difference is different from the
# and the difference between last entry changed
#
######################################################################
if(($ud[$i] ne $ud[$i-1]) ||
(($ufrom ne $ucv[$i-1]) && ($ulastd[$i] ne $ulastd[$i-1]))) {
$every = 0;
if($ufrm ne $ucv[$i-1])
{
$every = $ulastd[$i-1];
}
printf OUT "((0x%02x << 8) | 0x%02x), 0x%04x ,\n",
($ucv[$i-1] - $ufrom), $every, $ud[$i-1];
if((($ucv[$i-1] - $ufrom) > 255) || ($every > 255)) {
print "WARNING!!! cannot handle block > 255 chars (Upper)\n\n";
printf "0x%04X, 0x%04x, 0x%04x), 0x%04x \n",
$ufrom, $ucv[$i-1], $every, $ud[$i-1];
}
$ufrom = $ucv[$i]; # update the start of the item
printf OUT " 0x%04x, " , $ufrom;
$utotal++;
}
}
if( $i eq $#ucv) {
######################################################################
#
# Print the last item in the array
#
######################################################################
printf OUT "((0x%02x << 8) | 0x%02x), 0x%04x \n};\n\n",
($ucv[$i] - $ufrom), $ulastd[$i], $ud[$i];
$utotal++;
print OUT "static const PRUint32 gToUpperItems = $utotal;\n\n";
}
#
# printf "%4x - %4x - %4x - %4x\n", $ucv[$i], $uv[$i], $ud[$i], $ulastd[$i];
#
}
######################################################################
#
# Print out gToLower table
#
######################################################################
print OUT "static const PRUint16 gToLower[] = \n";
print OUT "{ /* From To Every Diff */ \n";
$ltotal=0;
$lfrom = 0; # remember the start of the output item
for ($i = 0; $i <= $#lcv; $i++)
{
if(0 eq $i) {
######################################################################
#
# Print the first item in the array
#
######################################################################
$lfrom = $lcv[0];
printf OUT " 0x%04x, " , $lcv[0];
} else {
######################################################################
#
# Print all the item except the first and last one
# only print if the lower case difference is different from the
# and the difference between last entry changed
#
######################################################################
if(($ld[$i] ne $ld[$i-1]) ||
(($lfrom ne $lcv[$i-1]) && ($llastd[$i] ne $llastd[$i-1]))) {
$every = 0;
if($lfrom ne $lcv[$i-1])
{
$every = $llastd[$i-1];
}
printf OUT "((0x%02x << 8) | 0x%02x), 0x%04x ,\n",
($lcv[$i-1] - $lfrom) , $every, $ld[$i-1];
if((($lcv[$i-1] - $lfrom) > 255) || ($every > 255)) {
print "WARNING!!! cannot handle block > 255 chars (Lower)\n\n";
printf "0x%04X, 0x%04x, 0x%04x, 0x%04x \n",
$lfrom, $lcv[$i-1], $every, $ld[$i-1];
}
$lfrom = $lcv[$i]; # update the start of the item
printf OUT " 0x%04x, " , $lfrom;
$ltotal++;
}
}
if( $i eq $#lcv) {
######################################################################
#
# Print the last item in the array
#
######################################################################
printf OUT "((0x%02x << 8) | 0x%02x), 0x%04x \n};\n\n",
($lcv[$i] - $lfrom), $llastd[$i], $ld[$i];
$ltotal++;
print OUT "static const PRUint32 gToLowerItems = $ltotal;\n\n";
}
#
# printf "%4x - %4x - %4x - %4x\n", $lcv[$i], $lv[$i], $ld[$i], $llastd[$i];
#
}
print OUT "static const PRUint32 gCaseBlocks [8] = {\n";
for($idx=0;$idx<8;$idx++)
{
printf OUT "0x%08X", $blk[$idx];
if($idx != 7) {
printf OUT ",\n";
} else {
printf OUT "\n";
}
}
print OUT "};\n";
######################################################################
#
# Close files
#
######################################################################
close(UNIDATA);
close(OUT);
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