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

412 lines
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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):
# Jungshik Shin <jshin@i18nl10n.com>
#
# 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 *****
######################################################################
#
# Initial global variable
#
######################################################################
%gcount = ();
%pat = ();
%map = (
"M" => "1",
"N" => "2",
"Z" => "3",
"C" => "4",
"L" => "5",
"P" => "6",
"S" => "7"
);
%special = ();
######################################################################
#
# Open the unicode database file
#
######################################################################
open ( UNICODATA , "< UnicodeData-Latest.txt")
|| die "cannot find UnicodeData-Latest.txt";
######################################################################
#
# Open the output file
#
######################################################################
open ( OUT , "> ../src/cattable.h")
|| die "cannot open output ../src/cattable.h file";
######################################################################
#
# Generate license and header
#
######################################################################
$mpl = <<END_OF_MPL;
/* -*- Mode: C++; tab-width: 2; 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/gencattable.pl
*/
END_OF_MPL
print OUT $mpl;
print OUT "#include \"nscore.h\" \n\n";
%category = ();
%sh = ();
%sl = ();
%sc = ();
$prevcjkcomp = 0;
$cjkcompidx = 0;
######################################################################
#
# Process the file line by line
#
######################################################################
while(<UNICODATA>) {
chop;
######################################################################
#
# Get value from fields
#
######################################################################
@f = split(/;/ , $_);
$c = $f[0]; # The unicode value
$n = $f[1]; # The unicode name
$g = $f[2]; # The General Category
$cat = substr($g, 0, 1);
# All CJK Compatibility ideographs belong to Lo
if ($n =~ /^CJK COMPATIBILITY IDEOGRAPH/)
{
$catnum = $map{$cat};
if ($cat ne "L") {
print "WARNING !!!! " . "
error in handling CJK Compatibility Ideograph block\n\n";
}
if (hex($prevcjkcomp) + 1 != hex($c))
{
if (hex($prevcjkcomp) != 0)
{
$sh{$cjkcompkey} = $prevcjkcomp;
}
$cjkcompkey = sprintf("CJK Compatibility #%d", ++$cjkcompidx);
$sl{$cjkcompkey} = $c;
$sc{$cjkcompkey} = $catnum;
push @special, $cjkcompkey;
}
$prevcjkcomp = $c;
}
elsif(( substr($n, 0, 1) ne "<") || ($n eq "<control>"))
{
#
# print $g;
#
$gcount{$g}++;
$gcount{$cat}++;
$category{$c} = $cat;
# print $g . " = " . $gcount{$g} . "\n";
} else {
# Handle special block
@pair=split(/, /, $n );
$catnum = $map{$cat};
$pair[0] =~ s/^<//;
# printf "[%s][%s] => %d\n", $pair[0], $pair[1], $catnum;
if( $pair[1] eq "First>") {
$sl{$pair[0]} = $c;
$sc{$pair[0]} = $catnum;
push @special, $pair[0];
} elsif ( $pair[1] eq "Last>") {
$sh{$pair[0]} = $c;
if($sc{$pair[0]} ne $catnum)
{
print "WARNING !!!! error in handling special block\n\n";
}
} else {
print "WARNING !!!! error in handling special block\n\n";
}
}
}
# take care of the last CJK Compatibility block
$sh{$cjkcompkey} = $prevcjkcomp;
# @cats = keys(%gcount);
# foreach $cat ( sort(@cats) ) {
# $count = $gcount{$cat};
# print "$cat ==> $count\n";
# }
# We treat characters < U+1D00 as "plane 0" and all the rest of planes 0 and 1
# as "plane 1". This gives a relatively even distribution of patterns between
# planes. If you change the value of $planeSplit, make sure that none of the
# ranges below straddles the new value!
$planeSplit = 0x1d00;
@range = (
0x0000, 0x07ff,
0x0900, 0x1b7f,
0x1d00, 0x33ff,
0x4dc0, 0x4dff,
0xa000, 0xa87f,
0xfb00, 0xffff,
0x10000, 0x104af,
0x10800, 0x1083f,
0x10900, 0x1091f,
0x10a00, 0x10a5f,
0x12000, 0x1247f,
0x1d000, 0x1d7ff
);
$totaldata = 0;
$tt=($#range+1) / 2;
@newidx = (0);
@patarray = ();
$oldplane = -1;
@planes = ();
for($t = 1; $t <= $tt; $t++)
{
$tl = $range[($t-1) * 2];
$th = $range[($t-1) * 2 + 1];
$ts = ( $th - $tl ) >> 3;
$totaldata += $ts + 1;
if ($planeSplit > $tl && $planeSplit < $th) {
printf STDERR "plane split %04X falls within range %04X - %04X\n",
$planeSplit, $tl, $th;
die "This program is now broken!!!\n\n\n";
}
if ($tl < $planeSplit) {
$plane = 0;
} else {
$plane = 1;
}
if ($oldplane != $plane) {
if ($oldplane != -1) {
printf STDERR "Plane %d has %d patterns\n", $oldplane, $newidx[$oldplane];
if ($newidx[$oldplane] > 256) {
printf STDERR "We have more than 256 patterns for plane %d\n", $oldplane;
die "This program is now broken!!!\n\n\n";
}
}
$newidx[$plane] = 0;
push @planes, $plane;
}
$oldplane = $plane;
printf OUT "static const PRUint8 gGenCatIdx%d[%d] = {\n", $t, $ts + 1;
for($i = ($tl >> 3); $i <= ($th >> 3) ; $i ++ )
{
$data = 0;
for($j = 0; $j < 8 ; $j++)
{
$k = sprintf("%04X", (($i << 3) + $j));
$cat = $category{$k};
if( $cat ne "")
{
$data = $data + ($map{$cat} << (4*$j));
}
}
$pattern = sprintf("0x%08X", $data);
$idx = $pat[$plane]{$pattern};
unless( exists($pat[$plane]{$pattern})){
$idx = $newidx[$plane]++;
$patarray[$plane][$idx] = $pattern;
$pat[$plane]{$pattern} = $idx;
}
printf OUT " %3d, // U+%06X - U+%06X : %s\n" ,
$idx, ($i << 3),((($i +1)<< 3)-1), $pattern ;
}
printf OUT "};\n\n";
if($t ne $tt)
{
$tl = $range[($t-1) * 2 + 1] + 1;
$th = $range[$t * 2] - 1;
for($i = ($tl >> 3); $i <= ($th >> 3) ; $i ++ )
{
$data = 0;
for($j = 0; $j < 8 ; $j++)
{
$k = sprintf("%04X", (($i << 3) + $j));
$cat = $category{$k};
if( $cat ne "")
{
$data = $data + ($map{$cat} << (4*$j));
}
}
$pattern = sprintf("0x%08X", $data);
if($data ne 0)
{
print "WARNING, Unicode Database now contain characters " .
"which we have not considered. change this program !!!\n\n";
printf "Problem- U+%06X - U+%06X range\n", ($i << 3),((($i +1)<< 3)-1);
}
}
}
}
printf STDERR "Plane %d has %d patterns\n", $plane, $newidx[$plane];
if ($newidx[$plane] > 256) {
printf STDERR "We have more than 256 patterns for plane %d\n", $plane;
die "This program is now broken!!!\n\n\n";
}
for $plane (@planes) {
printf OUT "static const PRUint32 gGenCatPatPl%d[$newidx] = {\n", $plane;
for($i = 0 ; $i < $newidx[$plane]; $i++)
{
printf OUT " %s, // $i \n", $patarray[$plane][$i] ;
}
printf OUT "}; \n\n";
$totaldata += $newidx[$plane] * 4;
}
printf OUT "static PRUint8 GetCat(PRUint32 u)\n{\n";
printf OUT " PRUint32 pat;\n";
printf OUT " //\n";
printf OUT " // Handle block which use index table mapping \n";
printf OUT " //\n";
for($t = 1; $t <= $tt; $t++)
{
$tl = $range[($t-1) * 2];
$th = $range[($t-1) * 2 + 1];
if ($tl < $planeSplit) {
$plane = 0;
} else {
$plane = 1;
}
printf OUT " // Handle U+%06X to U+%06X\n", $tl, $th;
printf OUT " if(0x%06X <= u && u <= 0x%06X) {\n", $tl, $th;
printf OUT " pat = " .
"gGenCatPatPl%d[gGenCatIdx%d [( u - 0x%06X ) / 8]];\n",
$plane, $t, $tl;
printf OUT " return (pat >> ((u % 8) * 4)) & 0x0F;\n";
printf OUT " }\n\n";
}
printf OUT " //\n";
printf OUT " // Handle blocks which share the same category \n";
printf OUT " //\n";
#@special = keys(%sh);
foreach $s ( @special ) {
printf OUT " // Handle %s block \n", $s;
printf OUT " if(0x%s <= u && u <= 0x%s) \n", $sl{$s}, $sh{$s};
printf OUT " return $sc{$s}; \n\n";
}
printf OUT " return 0; // UNDEFINE \n}\n";
printf OUT "// total data size = $totaldata\n";
#$total = 0;
#@pats = keys(%pat);
#foreach $pattern ( sort(@pats) ) {
# $count = $pat{$pattern};
# # print "$cat ==> $count\n";
# $total++;
#}
print "total = $totaldata\n";
######################################################################
#
# Close files
#
######################################################################
close(UNIDATA);
close(OUT);
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