You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tdelibs/khtml/html/dtd.cpp

919 lines
20 KiB

/**
* This file is part of the DOM implementation for KDE.
*
* (C) 1999 Lars Knoll (knoll@kde.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "html/dtd.h"
#include "misc/htmlhashes.h"
using namespace DOM;
#include <kdebug.h>
#include <kglobal.h>
// priority of tags. Closing tags of higher priority close tags of lower
// priority.
// Update this list, whenever you change htmltags.*
//
// 0 elements with forbidden close tag and text. They don't get pushed
// to the stack.
// 1 inline elements
// 2 form elements
// 3 regular block level elements
// 4 lists (OL UL DIR MENU)
// 5 TD TH SELECT
// 6 TR
// 7 tbody thead tfoot caption object
// 8 table
// 9 body frameset
// 10 html
const unsigned short KDE_NO_EXPORT DOM::tagPriority[] = {
0, // 0
1, // ID_A == 1
1, // ID_ABBR
1, // ID_ACRONYM
3, // ID_ADDRESS
1, // ID_APPLET
0, // ID_AREA
1, // ID_B
0, // ID_BASE
0, // ID_BASEFONT
1, // ID_BDO
1, // ID_BIG
5, // ID_BLOCKQUOTE
10, // ID_BODY
0, // ID_BR
1, // ID_BUTTON
5, // ID_CAPTION
5, // ID_CENTER
1, // ID_CITE
1, // ID_CODE
0, // ID_COL
1, // ID_COLGROUP
3, // ID_DD
1, // ID_DEL
1, // ID_DFN
5, // ID_DIR
5, // ID_DIV
5, // ID_DL
3, // ID_DT
1, // ID_EM
0, // ID_EMBED
3, // ID_FIELDSET
1, // ID_FONT
3, // ID_FORM
0, // ID_FRAME
10,// ID_FRAMESET
5, // ID_H1
5, // ID_H2
5, // ID_H3
5, // ID_H4
5, // ID_H5
5, // ID_H6
10,// ID_HEAD
0, // ID_HR
11,// ID_HTML
1, // ID_I
1, // ID_IFRAME
1, // ID_ILAYER
0, // ID_IMG
0, // ID_INPUT
1, // ID_INS
0, // ID_ISINDEX
1, // ID_KBD
0, // ID_KEYGEN
1, // ID_LABEL
1, // ID_LAYER
1, // ID_LEGEND
3, // ID_LI
0, // ID_LINK
1, // ID_MAP
3, // ID_MARQUEE
5, // ID_MENU
0, // ID_META
5, // ID_NOBR
10,// ID_NOEMBED
10,// ID_NOFRAMES
3, // ID_NOSCRIPT
1, // ID_NOLAYER
5, // ID_OBJECT
5, // ID_OL
1, // ID_OPTGROUP
2, // ID_OPTION
3, // ID_P
0, // ID_PARAM
5, // ID_PLAINTEXT
5, // ID_PRE
1, // ID_Q
1, // ID_S
1, // ID_SAMP
1, // ID_SCRIPT
6, // ID_SELECT
1, // ID_SMALL
1, // ID_SPAN
1, // ID_STRIKE
1, // ID_STRONG
1, // ID_STYLE
1, // ID_SUB
1, // ID_SUP
9,// ID_TABLE
8, // ID_TBODY
6, // ID_TD
1, // ID_TEXTAREA
8, // ID_TFOOT
6, // ID_TH
8, // ID_THEAD
1, // ID_TITLE
7, // ID_TR
1, // ID_TT
1, // ID_U
5, // ID_UL
1, // ID_VAR
1, // ID_WBR
5, // ID_XMP
0, // ID_TEXT
};
const tagtqStatus DOM::endTag[] = {
REQUIRED, // 0
REQUIRED, // ID_A == 1
REQUIRED, // ID_ABBR
REQUIRED, // ID_ACRONYM
REQUIRED, // ID_ADDRESS
REQUIRED, // ID_APPLET
FORBIDDEN, // ID_AREA
REQUIRED, // ID_B
FORBIDDEN, // ID_BASE
FORBIDDEN, // ID_BASEFONT
REQUIRED, // ID_BDO
REQUIRED, // ID_BIG
REQUIRED, // ID_BLOCKQUOTE
REQUIRED, // ID_BODY
FORBIDDEN, // ID_BR
REQUIRED, // ID_BUTTON
REQUIRED, // ID_CAPTION
REQUIRED, // ID_CENTER
REQUIRED, // ID_CITE
REQUIRED, // ID_CODE
FORBIDDEN, // ID_COL
OPTIONAL, // ID_COLGROUP
OPTIONAL, // ID_DD
REQUIRED, // ID_DEL
REQUIRED, // ID_DFN
REQUIRED, // ID_DIR
REQUIRED, // ID_DIV
REQUIRED, // ID_DL
OPTIONAL, // ID_DT
REQUIRED, // ID_EM
REQUIRED, // ID_EMBED
REQUIRED, // ID_FIELDSET
REQUIRED, // ID_FONT
REQUIRED, // ID_FORM
FORBIDDEN, // ID_FRAME
REQUIRED, // ID_FRAMESET
REQUIRED, // ID_H1
REQUIRED, // ID_H2
REQUIRED, // ID_H3
REQUIRED, // ID_H4
REQUIRED, // ID_H5
REQUIRED, // ID_H6
OPTIONAL, // ID_HEAD
FORBIDDEN, // ID_HR
REQUIRED, // ID_HTML
REQUIRED, // ID_I
REQUIRED, // ID_IFRAME
REQUIRED, // ID_ILAYER
FORBIDDEN, // ID_IMG
FORBIDDEN, // ID_INPUT
REQUIRED, // ID_INS
FORBIDDEN, // ID_ISINDEX
REQUIRED, // ID_KBD
REQUIRED, // ID_KEYGEN
REQUIRED, // ID_LABEL
REQUIRED, // ID_LAYER
REQUIRED, // ID_LEGEND
OPTIONAL, // ID_LI
FORBIDDEN, // ID_LINK
REQUIRED, // ID_MAP
REQUIRED, // ID_MARQUEE
REQUIRED, // ID_MENU
FORBIDDEN, // ID_META
REQUIRED, // ID_NOBR
REQUIRED, // ID_NOEMBED
REQUIRED, // ID_NOFRAMES
REQUIRED, // ID_NOSCRIPT
REQUIRED, // ID_NOLAYER
REQUIRED, // ID_OBJECT
REQUIRED, // ID_OL
REQUIRED, // ID_OPTGROUP
OPTIONAL, // ID_OPTION
OPTIONAL, // ID_P
FORBIDDEN, // ID_PARAM
REQUIRED, // ID_PLAINTEXT
REQUIRED, // ID_PRE
REQUIRED, // ID_Q
REQUIRED, // ID_S
REQUIRED, // ID_SAMP
REQUIRED, // ID_SCRIPT
REQUIRED, // ID_SELECT
REQUIRED, // ID_SMALL
REQUIRED, // ID_SPAN
REQUIRED, // ID_STRIKE
REQUIRED, // ID_STRONG
REQUIRED, // ID_STYLE
REQUIRED, // ID_SUB
REQUIRED, // ID_SUP
REQUIRED, // ID_TABLE
OPTIONAL, // ID_TBODY
OPTIONAL, // ID_TD
REQUIRED, // ID_TEXTAREA
OPTIONAL, // ID_TFOOT
OPTIONAL, // ID_TH
OPTIONAL, // ID_THEAD
REQUIRED, // ID_TITLE
OPTIONAL, // ID_TR
REQUIRED, // ID_TT
REQUIRED, // ID_U
REQUIRED, // ID_UL
REQUIRED, // ID_VAR
OPTIONAL, // ID_WBR
REQUIRED, // ID_XMP
REQUIRED // ID_TEXT
};
static const ushort tag_list_0[] = {
ID_TEXT,
ID_TT,
ID_I,
ID_B,
ID_U,
ID_S,
ID_STRIKE,
ID_BIG,
ID_SMALL,
ID_EM,
ID_STRONG,
ID_DFN,
ID_CODE,
ID_SAMP,
ID_KBD,
ID_VAR,
ID_CITE,
ID_ABBR,
ID_ACRONYM,
ID_A,
ID_IMG,
ID_APPLET,
ID_OBJECT,
ID_EMBED,
ID_FONT,
ID_BASEFONT,
ID_BR,
ID_SCRIPT,
ID_MAP,
ID_Q,
ID_SUB,
ID_SUP,
ID_SPAN,
ID_BDO,
ID_IFRAME,
ID_INPUT,
ID_SELECT,
ID_TEXTAREA,
ID_LABEL,
ID_BUTTON,
ID_INS,
ID_DEL,
ID_COMMENT,
ID_NOBR,
ID_WBR,
0
};
static const ushort tag_list_1[] = {
ID_TEXT,
ID_P,
ID_H1,
ID_H2,
ID_H3,
ID_H4,
ID_H5,
ID_H6,
ID_UL,
ID_OL,
ID_DIR,
ID_MENU,
ID_PRE,
ID_PLAINTEXT,
ID_DL,
ID_DIV,
ID_ILAYER,
ID_LAYER,
ID_CENTER,
ID_NOSCRIPT,
ID_NOFRAMES,
ID_BLOCKQUOTE,
ID_FORM,
ID_ISINDEX,
ID_HR,
ID_TABLE,
ID_FIELDSET,
ID_ADDRESS,
ID_TT,
ID_I,
ID_B,
ID_U,
ID_S,
ID_STRIKE,
ID_BIG,
ID_SMALL,
ID_EM,
ID_STRONG,
ID_DFN,
ID_CODE,
ID_SAMP,
ID_KBD,
ID_VAR,
ID_CITE,
ID_ABBR,
ID_ACRONYM,
ID_A,
ID_IMG,
ID_APPLET,
ID_OBJECT,
ID_EMBED,
ID_FONT,
ID_BASEFONT,
ID_BR,
ID_SCRIPT,
ID_MAP,
ID_Q,
ID_SUB,
ID_SUP,
ID_SPAN,
ID_BDO,
ID_IFRAME,
ID_INPUT,
ID_KEYGEN,
ID_SELECT,
ID_TEXTAREA,
ID_LABEL,
ID_BUTTON,
ID_COMMENT,
ID_LI,
ID_DD,
ID_XMP,
ID_INS,
ID_DEL,
ID_NOBR,
ID_WBR,
ID_MARQUEE,
0
};
static const ushort tag_list_2[] = {
ID_COMMENT,
0
};
static const ushort tag_list_3[] = {
ID_TEXT,
ID_P,
ID_H1,
ID_H2,
ID_H3,
ID_H4,
ID_H5,
ID_H6,
ID_UL,
ID_OL,
ID_DIR,
ID_MENU,
ID_PRE,
ID_PLAINTEXT,
ID_DL,
ID_DIV,
ID_ILAYER,
ID_LAYER,
ID_CENTER,
ID_NOSCRIPT,
ID_NOFRAMES,
ID_BLOCKQUOTE,
ID_FORM,
ID_ISINDEX,
ID_HR,
ID_TABLE,
ID_FIELDSET,
ID_ADDRESS,
ID_COMMENT,
ID_LI,
ID_DD,
ID_XMP,
ID_MARQUEE,
0
};
static const ushort tag_list_4[] = {
ID_TEXT,
ID_PARAM,
ID_P,
ID_H1,
ID_H2,
ID_H3,
ID_H4,
ID_H5,
ID_H6,
ID_UL,
ID_OL,
ID_DIR,
ID_MENU,
ID_PRE,
ID_PLAINTEXT,
ID_DL,
ID_DIV,
ID_ILAYER,
ID_LAYER,
ID_CENTER,
ID_NOSCRIPT,
ID_NOFRAMES,
ID_BLOCKQUOTE,
ID_FORM,
ID_ISINDEX,
ID_HR,
ID_TABLE,
ID_FIELDSET,
ID_ADDRESS,
ID_TEXT,
ID_TT,
ID_I,
ID_B,
ID_U,
ID_S,
ID_STRIKE,
ID_BIG,
ID_SMALL,
ID_EM,
ID_STRONG,
ID_DFN,
ID_CODE,
ID_SAMP,
ID_KBD,
ID_VAR,
ID_CITE,
ID_ABBR,
ID_ACRONYM,
ID_A,
ID_IMG,
ID_APPLET,
ID_OBJECT,
ID_EMBED,
ID_FONT,
ID_BASEFONT,
ID_BR,
ID_SCRIPT,
ID_MAP,
ID_Q,
ID_SUB,
ID_SUP,
ID_SPAN,
ID_BDO,
ID_IFRAME,
ID_INPUT,
ID_SELECT,
ID_TEXTAREA,
ID_LABEL,
ID_BUTTON,
ID_COMMENT,
ID_LI,
ID_DD,
ID_XMP,
ID_MARQUEE,
0
};
static const ushort tag_list_6[] = {
ID_DT,
ID_DD,
ID_COMMENT,
0
};
static const ushort tag_list_7[] = {
ID_TEXT,
ID_OPTGROUP,
ID_OPTION,
ID_COMMENT,
ID_SCRIPT,
0
};
static const ushort tag_list_10[] = {
ID_FRAMESET,
ID_FRAME,
ID_NOFRAMES,
ID_COMMENT,
0
};
static const ushort tag_list_11[] = {
ID_SCRIPT,
ID_STYLE,
ID_META,
ID_LINK,
ID_TITLE,
ID_ISINDEX,
ID_BASE,
ID_COMMENT,
0
};
static bool check_array(ushort child, const ushort *tagList)
{
int i = 0;
while(tagList[i] != 0)
{
if(tagList[i] == child) return true;
i++;
}
return false;
}
bool DOM::checkChild(ushort tagID, ushort childID, bool strict)
{
//kdDebug( 6030 ) << "checkChild: " << tagID << "/" << childID << endl;
// ### allow comments inside ANY node that can contain children
if (tagID >= 1000 || childID >= 1000)
return true; // one or both of the elements in an XML element; just allow for now
switch(tagID)
{
case ID_TT:
case ID_I:
case ID_B:
case ID_U:
case ID_S:
case ID_STRIKE:
case ID_BIG:
case ID_SMALL:
case ID_EM:
case ID_STRONG:
case ID_DFN:
case ID_CODE:
case ID_SAMP:
case ID_KBD:
case ID_VAR:
case ID_CITE:
case ID_ABBR:
case ID_ACRONYM:
case ID_SUB:
case ID_SUP:
case ID_BDO:
case ID_FONT:
case ID_LEGEND:
case ID_Q:
case ID_A:
case ID_NOBR:
case ID_WBR:
// _1 *
return check_array(childID, tag_list_1) || check_array(childID, tag_list_6);
case ID_P:
// P: ( _0 | TABLE | NOSCRIPT) *
return check_array(childID, tag_list_0) || (!strict && (childID == ID_TABLE || childID == ID_NOSCRIPT));
case ID_H1:
case ID_H2:
case ID_H3:
case ID_H4:
case ID_H5:
case ID_H6:
// _0 *
return check_array(childID, tag_list_0) ||
(!strict && check_array(childID, tag_list_3) && (childID < ID_H1 || childID > ID_H6));
case ID_BASEFONT:
case ID_BR:
case ID_AREA:
case ID_LINK:
case ID_IMG:
case ID_PARAM:
case ID_HR:
case ID_INPUT:
case ID_COL:
case ID_FRAME:
case ID_ISINDEX:
case ID_BASE:
case ID_META:
case ID_COMMENT:
// BASEFONT: EMPTY
return false;
case ID_BODY:
// BODY: _1 * + _2
return check_array(childID, tag_list_1) || check_array(childID, tag_list_2);
case ID_ADDRESS:
// ADDRESS: ( _0 | P ) *
return check_array(childID, tag_list_0) || childID == ID_P;
case ID_DT:
if ( childID == ID_DL ) return false;
case ID_LI:
case ID_DIV:
case ID_SPAN:
case ID_ILAYER:
case ID_LAYER:
case ID_CENTER:
case ID_BLOCKQUOTE:
case ID_INS:
case ID_DEL:
case ID_DD:
case ID_TH:
case ID_TD:
case ID_IFRAME:
case ID_NOFRAMES:
case ID_NOSCRIPT:
case ID_CAPTION:
case ID_MARQUEE:
// DIV: _1 *
return check_array(childID, tag_list_1);
case ID_MAP:
// We accept SCRIPT in client-side image maps as an extension to the DTD.
// MAP: ( _3 + | AREA + | SCRIPT + )
return check_array(childID, tag_list_3) ||
childID == ID_AREA ||
childID == ID_SCRIPT;
case ID_OBJECT:
case ID_EMBED:
case ID_APPLET:
// OBJECT: _4 *
return check_array(childID, tag_list_4);
case ID_PRE:
case ID_XMP:
case ID_PLAINTEXT:
// PRE: _0 * - _5
return check_array(childID, tag_list_1);
case ID_DL:
// DL: _6 +
return check_array(childID, tag_list_6) || check_array(childID, tag_list_1);
case ID_OL:
case ID_UL:
// OL: LI +
return check_array(childID, tag_list_1);
case ID_DIR:
case ID_MENU:
// (DIR|MENU): LI + - _3
if(childID == ID_LI) return true;
return false;
case ID_FORM:
// FORM: _1 * - FORM
return check_array(childID, tag_list_1);
case ID_LABEL:
// LABEL: _1 * - LABEL
return check_array(childID, tag_list_1);
// KEYGEN does not really allow any children
// from outside, just need this to be able
// to add the keylengths ourself
// Yes, consider it a hack (Dirk)
case ID_KEYGEN:
case ID_SELECT:
// SELECT: _7 +
return check_array(childID, tag_list_7);
case ID_OPTGROUP:
// OPTGROUP: OPTION +
if(childID == ID_OPTION) return true;
return false;
case ID_OPTION:
case ID_TEXTAREA:
case ID_TITLE:
case ID_STYLE:
case ID_SCRIPT:
// OPTION: TEXT
if(childID == ID_TEXT) return true;
return false;
case ID_FIELDSET:
// FIELDSET: ( TEXT , LEGEND , _1 * )
if(childID == ID_TEXT) return true;
if(childID == ID_LEGEND) return true;
return check_array(childID, tag_list_1);
case ID_BUTTON:
// BUTTON: _1 * - _8
return check_array(childID, tag_list_1);
case ID_TABLE:
// TABLE: ( CAPTION ? , ( COL * | COLGROUP * ) , THEAD ? , TFOOT ? , TBODY + )
switch(childID)
{
case ID_CAPTION:
case ID_COL:
case ID_COLGROUP:
case ID_THEAD:
case ID_TFOOT:
case ID_TBODY:
case ID_FORM:
case ID_SCRIPT:
return true;
default:
return false;
}
case ID_THEAD:
case ID_TFOOT:
case ID_TBODY:
// THEAD: TR +
if(childID == ID_TR || childID == ID_SCRIPT) return true;
return false;
case ID_COLGROUP:
// COLGROUP: COL *
if(childID == ID_COL) return true;
return false;
case ID_TR:
// TR: (TD, TH)
return (childID == ID_TH || childID == ID_TD || childID == ID_SCRIPT);
case ID_FRAMESET:
// FRAMESET: _10
return check_array(childID, tag_list_10);
case ID_HEAD:
// HEAD: _11
return check_array(childID, tag_list_11);
case ID_HTML:
// HTML: ( HEAD , COMMENT, ( BODY | ( FRAMESET & NOFRAMES ? ) ) )
switch(childID)
{
case ID_HEAD:
case ID_COMMENT:
case ID_BODY:
case ID_FRAMESET:
case ID_NOFRAMES:
case ID_SCRIPT:
return true;
default:
return false;
}
default:
kdDebug( 6030 ) << "unhandled tag in dtd.cpp:checkChild(): tagID=" << tagID << "!" << endl;
return false;
}
}
void DOM::addForbidden(int tagId, ushort *forbiddenTags)
{
switch(tagId)
{
case ID_A:
// we allow nested anchors. The innermost one wil be taken...
//forbiddenTags[ID_A]++;
break;
case ID_NOBR:
forbiddenTags[ID_PRE]++;
// fall through
case ID_PRE:
case ID_PLAINTEXT:
case ID_XMP:
//forbiddenTags[ID_IMG]++;
forbiddenTags[ID_OBJECT]++;
forbiddenTags[ID_EMBED]++;
forbiddenTags[ID_APPLET]++;
// why forbid them. We can deal with them in PRE
//forbiddenTags[ID_BIG]++;
//forbiddenTags[ID_SMALL]++;
//forbiddenTags[ID_SUB]++;
//forbiddenTags[ID_SUP]++;
forbiddenTags[ID_BASEFONT]++;
break;
case ID_DIR:
case ID_MENU:
forbiddenTags[ID_P]++;
forbiddenTags[ID_H1]++;
forbiddenTags[ID_H2]++;
forbiddenTags[ID_H3]++;
forbiddenTags[ID_H4]++;
forbiddenTags[ID_H5]++;
forbiddenTags[ID_H6]++;
forbiddenTags[ID_UL]++;
forbiddenTags[ID_OL]++;
forbiddenTags[ID_DIR]++;
forbiddenTags[ID_MENU]++;
forbiddenTags[ID_PRE]++;
forbiddenTags[ID_PLAINTEXT]++;
forbiddenTags[ID_XMP]++;
forbiddenTags[ID_DL]++;
forbiddenTags[ID_DIV]++;
forbiddenTags[ID_CENTER]++;
forbiddenTags[ID_NOSCRIPT]++;
forbiddenTags[ID_NOFRAMES]++;
forbiddenTags[ID_BLOCKQUOTE]++;
forbiddenTags[ID_FORM]++;
forbiddenTags[ID_ISINDEX]++;
forbiddenTags[ID_HR]++;
forbiddenTags[ID_TABLE]++;
forbiddenTags[ID_FIELDSET]++;
forbiddenTags[ID_ADDRESS]++;
break;
case ID_LABEL:
forbiddenTags[ID_LABEL]++;
break;
case ID_BUTTON:
forbiddenTags[ID_A]++;
forbiddenTags[ID_INPUT]++;
forbiddenTags[ID_SELECT]++;
forbiddenTags[ID_TEXTAREA]++;
forbiddenTags[ID_LABEL]++;
forbiddenTags[ID_BUTTON]++;
forbiddenTags[ID_FORM]++;
forbiddenTags[ID_ISINDEX]++;
forbiddenTags[ID_FIELDSET]++;
forbiddenTags[ID_IFRAME]++;
break;
default:
break;
}
}
void DOM::removeForbidden(int tagId, ushort *forbiddenTags)
{
switch(tagId)
{
case ID_A:
//forbiddenTags[ID_A]--;
break;
case ID_NOBR:
forbiddenTags[ID_PRE]--;
// fall through
case ID_PRE:
case ID_XMP:
case ID_PLAINTEXT:
//forbiddenTags[ID_IMG]--;
forbiddenTags[ID_OBJECT]--;
forbiddenTags[ID_EMBED]--;
forbiddenTags[ID_APPLET]--;
//forbiddenTags[ID_BIG]--;
//forbiddenTags[ID_SMALL]--;
//forbiddenTags[ID_SUB]--;
//forbiddenTags[ID_SUP]--;
forbiddenTags[ID_BASEFONT]--;
break;
case ID_DIR:
case ID_MENU:
forbiddenTags[ID_P]--;
forbiddenTags[ID_H1]--;
forbiddenTags[ID_H2]--;
forbiddenTags[ID_H3]--;
forbiddenTags[ID_H4]--;
forbiddenTags[ID_H5]--;
forbiddenTags[ID_H6]--;
forbiddenTags[ID_UL]--;
forbiddenTags[ID_OL]--;
forbiddenTags[ID_DIR]--;
forbiddenTags[ID_MENU]--;
forbiddenTags[ID_PRE]--;
forbiddenTags[ID_PLAINTEXT]--;
forbiddenTags[ID_XMP]--;
forbiddenTags[ID_DL]--;
forbiddenTags[ID_DIV]--;
forbiddenTags[ID_CENTER]--;
forbiddenTags[ID_NOSCRIPT]--;
forbiddenTags[ID_NOFRAMES]--;
forbiddenTags[ID_BLOCKQUOTE]--;
forbiddenTags[ID_FORM]--;
forbiddenTags[ID_ISINDEX]--;
forbiddenTags[ID_HR]--;
forbiddenTags[ID_TABLE]--;
forbiddenTags[ID_FIELDSET]--;
forbiddenTags[ID_ADDRESS]--;
break;
case ID_LABEL:
forbiddenTags[ID_LABEL]--;
break;
case ID_BUTTON:
forbiddenTags[ID_A]--;
forbiddenTags[ID_INPUT]--;
forbiddenTags[ID_SELECT]--;
forbiddenTags[ID_TEXTAREA]--;
forbiddenTags[ID_LABEL]--;
forbiddenTags[ID_BUTTON]--;
forbiddenTags[ID_FORM]--;
forbiddenTags[ID_ISINDEX]--;
forbiddenTags[ID_FIELDSET]--;
forbiddenTags[ID_IFRAME]--;
break;
default:
break;
}
}