dtd.cpp

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/**
 * This file is part of the DOM implementation for KDE.
 *
 * (C) 1999 Lars Knoll ([e-mail])
 * Copyright (C) 2003 Apple Computer, Inc.
 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */

#include "html/dtd.h"
#include "misc/htmlhashes.h"

using namespace DOM;

#include <kdebug.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 DOM::tagPriorityArray[] = {
    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
    0, // ID_CANVAS
    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
    0, // ID_IMG
    0, // ID_INPUT
    1, // ID_INS
    0, // ID_ISINDEX
    1, // ID_KBD
    0, // ID_KEYGEN
    5, // 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
    7, // 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 tagStatus DOM::endTagArray[] = {
    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
    FORBIDDEN, // ID_CANVAS
    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
    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
    REQUIRED,  // 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_CANVAS,
    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_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_CANVAS,
    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_DT,
    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_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_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_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_CANVAS,
    ID_IMG,
    ID_APPLET,
    ID_OBJECT,
    ID_EMBED,
    ID_FONT,
    ID_BASEFONT,
    ID_BR,
    ID_SCRIPT,
    ID_MAP,
    ID_Q,
    ID_SUB,
    ID_SUP,