RetroZilla/intl/chardet/tools/genverifier.pm

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2015-10-21 05:03:22 +02:00
#!/usr/local/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) 1998
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Frang Tang
#
# 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 *****
package genverifier;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $VERSION);
use Exporter;
$VERSION = 1.00;
@ISA = qw(Exporter);
@EXPORT = qw(
GenVerifier
);
@EXPORT_OK = qw();
sub GenNPL {
my($ret) = << "END_MPL";
/* -*- 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) 1998
* 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 ***** */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
END_MPL
return $ret;
}
##--------------------------------------------------------------
sub GetClass {
my($char, $clstbl) = @_;
my($l);
for($l =0; $l <= @$clstbl; $l++) {
if(($clstbl->[$l][0] <= $char) && ($char <= $clstbl->[$l][1]))
{
return $clstbl->[$l][2];
}
}
print "WARNING- there are no class for $char\n";
};
##--------------------------------------------------------------
sub GenClassPkg {
my($name, $bits) = @_;
return GenPkg($name, $bits, "_cls");
}
##--------------------------------------------------------------
sub GenStatePkg {
my($name, $bits) = @_;
return GenPkg($name, $bits, "_st");
};
##--------------------------------------------------------------
sub GenPkg {
my($name, $bits, $tbl) = @_;
my($ret);
$ret = " {\n" .
" eIdxSft" . $bits . "bits, \n" .
" eSftMsk" . $bits . "bits, \n" .
" eBitSft" . $bits . "bits, \n" .
" eUnitMsk" . $bits . "bits, \n" .
" " . $name . $tbl . " \n" .
" }";
return $ret;
};
##--------------------------------------------------------------
sub Gen4BitsClass {
my($name, $clstbl) = @_;
my($i,$j);
my($cls);
my($ret);
$ret = "";
$ret .= "static const PRUint32 " . $name . "_cls [ 256 / 8 ] = {\n";
for($i = 0; $i < 0x100; $i+= 8) {
$ret .= "PCK4BITS(";
for($j = $i; $j < $i + 8; $j++) {
$cls = &GetClass($j,$clstbl);
$ret .= sprintf("%d", $cls) ;
if($j != ($i+7)) {
$ret .= ",";
}
}
if( $i+8 >= 0x100) {
$ret .= ") ";
} else {
$ret .= "),";
}
$ret .= sprintf(" // %02x - %02x \n", $i, ($i+7));
}
$ret .= "};\n";
return $ret;
};
##--------------------------------------------------------------
sub GenVerifier {
my($name, $charset, $cls, $numcls, $st) = @_;
my($ret);
$ret = GenNPL();
$ret .= GenNote();
$ret .= GenHeader();
$ret .= Gen4BitsClass($name, $cls);
$ret .= "\n\n";
$ret .= Gen4BitsState($name, $st);
$ret .= "\n\n";
$ret .= "static nsVerifier ns" . $name . "Verifier = {\n";
$ret .= ' "' . $charset . '",' . "\n";
$ret .= GenClassPkg($name, 4);
$ret .= ",\n";
$ret .= " " . $numcls;
$ret .= ",\n";
$ret .= GenStatePkg($name, 4);
$ret .= "\n};\n";
return $ret;
};
##--------------------------------------------------------------
sub Gen4BitsState {
my($name, $sttbl) = @_;
my($lenafterpad) = (((@$sttbl-1) >> 3) + 1) << 3;
my($i,$j);
my($ret);
$ret = "";
$ret .= "static const PRUint32 " . $name . "_st [ " . ($lenafterpad >> 3) . "] = {\n";
for($i = 0; $i < $lenafterpad ; $i+= 8) {
$ret .= "PCK4BITS(";
for($j = $i; $j < $i + 8; $j++) {
if(0 == $sttbl->[$j]) {
$ret .= "eStart";
} else { if(1 == $sttbl->[$j]) {
$ret .= "eError";
} else { if(2 == $sttbl->[$j]) {
$ret .= "eItsMe";
} else {
$ret .= sprintf(" %d", $sttbl->[$j]) ;
}}}
if($j != ($i+7)) {
$ret .= ",";
}
}
if( $i+8 >= $lenafterpad ) {
$ret .= ") ";
} else {
$ret .= "),";
}
$ret .= sprintf("//%02x-%02x \n", $i, ($i+7));
}
$ret .= "};\n";
return $ret;
};
##--------------------------------------------------------------
sub GenNote {
my($ret) = << "END_NOTE";
/*
* DO NOT EDIT THIS DOCUMENT MANUALLY !!!
* THIS FILE IS AUTOMATICALLY GENERATED BY THE TOOLS UNDER
* mozilla/intl/chardet/tools/
* Please contact ftang\@netscape.com or mozilla-i18n\@mozilla.org
* if you have any question. Thanks
*/
END_NOTE
return $ret;
}
##--------------------------------------------------------------
sub GenHeader {
my($ret) = << "END_HEADER";
#include "nsVerifier.h"
END_HEADER
return $ret;
}
##--------------------------------------------------------------
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