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org.w3c.tidy5.ParserImpl Maven / Gradle / Ivy
/*
* Java HTML Tidy - JTidy
* HTML parser and pretty printer
*
* Copyright (c) 1998-2000 World Wide Web Consortium (Massachusetts
* Institute of Technology, Institut National de Recherche en
* Informatique et en Automatique, Keio University). All Rights
* Reserved.
*
* Contributing Author(s):
*
* Dave Raggett
* Andy Quick (translation to Java)
* Gary L Peskin (Java development)
* Sami Lempinen (release management)
* Fabrizio Giustina
*
* The contributing author(s) would like to thank all those who
* helped with testing, bug fixes, and patience. This wouldn't
* have been possible without all of you.
*
* COPYRIGHT NOTICE:
*
* This software and documentation is provided "as is," and
* the copyright holders and contributing author(s) make no
* representations or warranties, express or implied, including
* but not limited to, warranties of merchantability or fitness
* for any particular purpose or that the use of the software or
* documentation will not infringe any third party patents,
* copyrights, trademarks or other rights.
*
* The copyright holders and contributing author(s) will not be
* liable for any direct, indirect, special or consequential damages
* arising out of any use of the software or documentation, even if
* advised of the possibility of such damage.
*
* Permission is hereby granted to use, copy, modify, and distribute
* this source code, or portions hereof, documentation and executables,
* for any purpose, without fee, subject to the following restrictions:
*
* 1. The origin of this source code must not be misrepresented.
* 2. Altered versions must be plainly marked as such and must
* not be misrepresented as being the original source.
* 3. This Copyright notice may not be removed or altered from any
* source or altered source distribution.
*
* The copyright holders and contributing author(s) specifically
* permit, without fee, and encourage the use of this source code
* as a component for supporting the Hypertext Markup Language in
* commercial products. If you use this source code in a product,
* acknowledgment is not required but would be appreciated.
*
*/
package org.w3c.tidy5;
/**
* HTML Parser implementation.
* @author Dave Raggett [email protected] [email protected] <![CDATA[
if (node.tag == tt.tagBody)
{
if (node.type != Node.START_TAG)
{
lexer.report.warning(lexer, html, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (frameset != null)
{
lexer.ungetToken();
if (noframes == null)
{
noframes = lexer.inferredTag("noframes");
frameset.insertNodeAtEnd(noframes);
lexer.report.warning(lexer, html, noframes, Report.INSERTING_TAG);
}
parseTag(lexer, noframes, mode);
continue;
}
lexer.constrainVersion(~Dict.VERS_FRAMESET);
break; // to parse body
}
// flag an error if we see more than one frameset
if (node.tag == tt.tagFrameset)
{
if (node.type != Node.START_TAG)
{
lexer.report.warning(lexer, html, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (frameset != null)
{
lexer.report.error(lexer, html, node, Report.DUPLICATE_FRAMESET);
}
else
{
frameset = node;
}
html.insertNodeAtEnd(node);
parseTag(lexer, node, mode);
// see if it includes a noframes element so that we can merge subsequent noframes elements
for (node = frameset.content; node != null; node = node.next)
{
if (node.tag == tt.tagNoframes)
{
noframes = node;
}
}
continue;
}
// if not a frameset document coerce <noframes> to <body>
if (node.tag == tt.tagNoframes)
{
if (node.type != Node.START_TAG)
{
lexer.report.warning(lexer, html, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (frameset == null)
{
lexer.report.warning(lexer, html, node, Report.DISCARDING_UNEXPECTED);
node = lexer.inferredTag("body");
break;
}
if (noframes == null)
{
noframes = node;
frameset.insertNodeAtEnd(noframes);
}
parseTag(lexer, noframes, mode);
continue;
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (node.tag != null && (node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, html, node);
continue;
}
// #427675 - discard illegal frame element following a frameset - fix by Randy Waki 11 Oct 00
if (frameset != null && node.tag == tt.tagFrame)
{
lexer.report.warning(lexer, html, node, Report.DISCARDING_UNEXPECTED);
continue;
}
}
lexer.ungetToken();
// insert other content into noframes element
if (frameset != null)
{
if (noframes == null)
{
noframes = lexer.inferredTag("noframes");
frameset.insertNodeAtEnd(noframes);
}
else
{
lexer.report.warning(lexer, html, node, Report.NOFRAMES_CONTENT);
}
lexer.constrainVersion(Dict.VERS_FRAMESET);
parseTag(lexer, noframes, mode);
continue;
}
node = lexer.inferredTag("body");
lexer.constrainVersion(~Dict.VERS_FRAMESET);
break;
}
// node must be body
html.insertNodeAtEnd(node);
parseTag(lexer, node, mode);
lexer.seenEndHtml = true;
}
}
/**
* Parser for HEAD.
*/
public static class ParseHead implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node head, short mode)
{
Node node;
int hasTitle = 0;
int hasBase = 0;
TagTable tt = lexer.configuration.tt;
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == head.tag && node.type == Node.END_TAG)
{
head.closed = true;
break;
}
if (node.type == Node.TEXT_NODE)
{
lexer.report.warning(lexer, head, node, Report.TAG_NOT_ALLOWED_IN);
lexer.ungetToken();
break;
}
// deal with comments etc.
if (Node.insertMisc(head, node))
{
continue;
}
if (node.type == Node.DOCTYPE_TAG)
{
Node.insertDocType(lexer, head, node);
continue;
}
// discard unknown tags
if (node.tag == null)
{
lexer.report.warning(lexer, head, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (!TidyUtils.toBoolean(node.tag.model & Dict.CM_HEAD))
{
// #545067 Implicit closing of head broken - warn only for XHTML input
if (lexer.isvoyager)
{
lexer.report.warning(lexer, head, node, Report.TAG_NOT_ALLOWED_IN);
}
lexer.ungetToken();
break;
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (node.tag == tt.tagTitle)
{
++hasTitle;
if (hasTitle > 1)
{
lexer.report.warning(lexer, head, node, Report.TOO_MANY_ELEMENTS);
}
}
else if (node.tag == tt.tagBase)
{
++hasBase;
if (hasBase > 1)
{
lexer.report.warning(lexer, head, node, Report.TOO_MANY_ELEMENTS);
}
}
else if (node.tag == tt.tagNoscript)
{
lexer.report.warning(lexer, head, node, Report.TAG_NOT_ALLOWED_IN);
}
head.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
continue;
}
// discard unexpected text nodes and end tags
lexer.report.warning(lexer, head, node, Report.DISCARDING_UNEXPECTED);
}
}
}
/**
* Parser for TITLE.
*/
public static class ParseTitle implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node title, short mode)
{
Node node;
while ((node = lexer.getToken(Lexer.MIXED_CONTENT)) != null)
{
// [438658] : Missing / in title endtag makes 2 titles
if (node.tag == title.tag && node.type == Node.START_TAG)
{
lexer.report.warning(lexer, title, node, Report.COERCE_TO_ENDTAG);
node.type = Node.END_TAG;
continue;
}
else if (node.tag == title.tag && node.type == Node.END_TAG)
{
title.closed = true;
Node.trimSpaces(lexer, title);
return;
}
if (node.type == Node.TEXT_NODE)
{
// only called for 1st child
if (title.content == null)
{
Node.trimInitialSpace(lexer, title, node);
}
if (node.start >= node.end)
{
continue;
}
title.insertNodeAtEnd(node);
continue;
}
// deal with comments etc.
if (Node.insertMisc(title, node))
{
continue;
}
// discard unknown tags
if (node.tag == null)
{
lexer.report.warning(lexer, title, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// pushback unexpected tokens
lexer.report.warning(lexer, title, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
Node.trimSpaces(lexer, title);
return;
}
lexer.report.warning(lexer, title, node, Report.MISSING_ENDTAG_FOR);
}
}
/**
* Parser for SCRIPT.
*/
public static class ParseScript implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node script, short mode) {
Node node = lexer.getCDATA(script);
if (node != null) {
script.insertNodeAtEnd(node);
} else {
/* handle e.g. a document like "<script>" */
lexer.report.error(lexer, script, null, Report.MISSING_ENDTAG_FOR);
return;
}
node = lexer.getToken(Lexer.IGNORE_WHITESPACE);
if (!(node != null && node.type == Node.END_TAG && node.tag != null &&
node.tag.name.equalsIgnoreCase(script.tag.name))) {
lexer.report.error(lexer, script, node, Report.MISSING_ENDTAG_FOR);
if (node != null) {
lexer.ungetToken();
}
}
}
}
/**
* Parser for BODY.
*/
public static class ParseBody implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node body, short mode)
{
Node node;
boolean checkstack, iswhitenode;
mode = Lexer.IGNORE_WHITESPACE;
checkstack = true;
TagTable tt = lexer.configuration.tt;
Clean.bumpObject(lexer, body.parent);
while ((node = lexer.getToken(mode)) != null)
{
// #538536 Extra endtags not detected
if (node.tag == tt.tagHtml)
{
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG || lexer.seenEndHtml)
{
lexer.report.warning(lexer, body, node, Report.DISCARDING_UNEXPECTED);
}
else
{
lexer.seenEndHtml = true;
}
continue;
}
if (lexer.seenEndBody
&& (node.type == Node.START_TAG || node.type == Node.END_TAG || node.type == Node.START_END_TAG))
{
lexer.report.warning(lexer, body, node, Report.CONTENT_AFTER_BODY);
}
if (node.tag == body.tag && node.type == Node.END_TAG)
{
body.closed = true;
Node.trimSpaces(lexer, body);
lexer.seenEndBody = true;
mode = Lexer.IGNORE_WHITESPACE;
if (body.parent.tag == tt.tagNoframes)
{
break;
}
continue;
}
if (node.tag == tt.tagNoframes)
{
if (node.type == Node.START_TAG)
{
body.insertNodeAtEnd(node);
BLOCK.parse(lexer, node, mode);
continue;
}
if (node.type == Node.END_TAG && body.parent.tag == tt.tagNoframes)
{
Node.trimSpaces(lexer, body);
lexer.ungetToken();
break;
}
}
if ((node.tag == tt.tagFrame || node.tag == tt.tagFrameset) && body.parent.tag == tt.tagNoframes)
{
Node.trimSpaces(lexer, body);
lexer.ungetToken();
break;
}
iswhitenode = false;
if (node.type == Node.TEXT_NODE
&& node.end <= node.start + 1
&& node.textarray[node.start] == (byte) ' ')
{
iswhitenode = true;
}
// deal with comments etc.
if (Node.insertMisc(body, node))
{
continue;
}
// #538536 Extra endtags not detected
// if (lexer.seenEndBody && !iswhitenode)
// {
// lexer.seenEndBody = true;
// lexer.report.warning(lexer, body, node, Report.CONTENT_AFTER_BODY);
// }
// mixed content model permits text
if (node.type == Node.TEXT_NODE)
{
if (iswhitenode && mode == Lexer.IGNORE_WHITESPACE)
{
continue;
}
if (lexer.configuration.encloseBodyText && !iswhitenode)
{
Node para;
lexer.ungetToken();
para = lexer.inferredTag("p");
body.insertNodeAtEnd(para);
parseTag(lexer, para, mode);
mode = Lexer.MIXED_CONTENT;
continue;
}
// HTML2 and HTML4 strict doesn't allow text here
lexer.constrainVersion(~(Dict.VERS_HTML40_STRICT | Dict.VERS_HTML20));
if (checkstack)
{
checkstack = false;
if (lexer.inlineDup(node) > 0)
{
continue;
}
}
body.insertNodeAtEnd(node);
mode = Lexer.MIXED_CONTENT;
continue;
}
if (node.type == Node.DOCTYPE_TAG)
{
Node.insertDocType(lexer, body, node);
continue;
}
// discard unknown and PARAM tags
if (node.tag == null || node.tag == tt.tagParam)
{
lexer.report.warning(lexer, body, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// Netscape allows LI and DD directly in BODY We infer UL or DL respectively and use this boolean to
// exclude block-level elements so as to match Netscape's observed behaviour.
lexer.excludeBlocks = false;
if ((!((node.tag.model & Dict.CM_BLOCK) != 0) && !((node.tag.model & Dict.CM_INLINE) != 0))
|| node.tag == tt.tagInput)
{
// avoid this error message being issued twice
if (!((node.tag.model & Dict.CM_HEAD) != 0))
{
lexer.report.warning(lexer, body, node, Report.TAG_NOT_ALLOWED_IN);
}
if ((node.tag.model & Dict.CM_HTML) != 0)
{
// copy body attributes if current body was inferred
if (node.tag == tt.tagBody && body.implicit && body.attributes == null)
{
body.attributes = node.attributes;
node.attributes = null;
}
continue;
}
if ((node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, body, node);
continue;
}
if ((node.tag.model & Dict.CM_LIST) != 0)
{
lexer.ungetToken();
node = lexer.inferredTag("ul");
node.addClass("noindent");
lexer.excludeBlocks = true;
}
else if ((node.tag.model & Dict.CM_DEFLIST) != 0)
{
lexer.ungetToken();
node = lexer.inferredTag("dl");
lexer.excludeBlocks = true;
}
else if ((node.tag.model & (Dict.CM_TABLE | Dict.CM_ROWGRP | Dict.CM_ROW)) != 0)
{
// Issue 2855511
if (node.type != Node.END_TAG) {
lexer.ungetToken();
node = lexer.inferredTag("table");
}
lexer.excludeBlocks = true;
}
else if (node.tag == tt.tagInput)
{
lexer.ungetToken();
node = lexer.inferredTag("form");
lexer.excludeBlocks = true;
}
else
{
if (!((node.tag.model & (Dict.CM_ROW | Dict.CM_FIELD)) != 0))
{
lexer.ungetToken();
return;
}
// ignore </td></th> <option> etc.
continue;
}
}
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagBr)
{
node.type = Node.START_TAG;
}
else if (node.tag == tt.tagP)
{
Node.coerceNode(lexer, node, tt.tagBr);
body.insertNodeAtEnd(node);
node = lexer.inferredTag("br");
}
else if ((node.tag.model & Dict.CM_INLINE) != 0)
{
lexer.popInline(node);
}
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (((node.tag.model & Dict.CM_INLINE) != 0) && !((node.tag.model & Dict.CM_MIXED) != 0))
{
// HTML4 strict doesn't allow inline content here
// but HTML2 does allow img elements as children of body
if (node.tag == tt.tagImg)
{
lexer.constrainVersion(~Dict.VERS_HTML40_STRICT);
}
else
{
lexer.constrainVersion(~(Dict.VERS_HTML40_STRICT | Dict.VERS_HTML20));
}
if (checkstack && !node.implicit)
{
checkstack = false;
if (lexer.inlineDup(node) > 0)
{
continue;
}
}
mode = Lexer.MIXED_CONTENT;
}
else
{
checkstack = true;
mode = Lexer.IGNORE_WHITESPACE;
}
if (node.implicit)
{
lexer.report.warning(lexer, body, node, Report.INSERTING_TAG);
}
body.insertNodeAtEnd(node);
parseTag(lexer, node, mode);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, body, node, Report.DISCARDING_UNEXPECTED);
}
}
}
/**
* Parser for FRAMESET.
*/
public static class ParseFrameSet implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node frameset, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
lexer.badAccess |= Report.USING_FRAMES;
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == frameset.tag && node.type == Node.END_TAG)
{
frameset.closed = true;
Node.trimSpaces(lexer, frameset);
return;
}
// deal with comments etc.
if (Node.insertMisc(frameset, node))
{
continue;
}
if (node.tag == null)
{
lexer.report.warning(lexer, frameset, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (node.tag != null && (node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, frameset, node);
continue;
}
}
if (node.tag == tt.tagBody)
{
lexer.ungetToken();
node = lexer.inferredTag("noframes");
lexer.report.warning(lexer, frameset, node, Report.INSERTING_TAG);
}
if (node.type == Node.START_TAG && (node.tag.model & Dict.CM_FRAMES) != 0)
{
frameset.insertNodeAtEnd(node);
lexer.excludeBlocks = false;
parseTag(lexer, node, Lexer.MIXED_CONTENT);
continue;
}
else if (node.type == Node.START_END_TAG && (node.tag.model & Dict.CM_FRAMES) != 0)
{
frameset.insertNodeAtEnd(node);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, frameset, node, Report.DISCARDING_UNEXPECTED);
}
lexer.report.warning(lexer, frameset, node, Report.MISSING_ENDTAG_FOR);
}
}
/**
* Parser for INLINE.
*/
public static class ParseInline implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node element, short mode)
{
Node node, parent;
TagTable tt = lexer.configuration.tt;
if (TidyUtils.toBoolean(element.tag.model & Dict.CM_EMPTY))
{
return;
}
// ParseInline is used for some block level elements like H1 to H6 For such elements we need to insert
// inline emphasis tags currently on the inline stack. For Inline elements, we normally push them onto the
// inline stack provided they aren't implicit or OBJECT/APPLET. This test is carried out in PushInline and
// PopInline, see istack.c We don't push SPAN to replicate current browser behavior
if (TidyUtils.toBoolean(element.tag.model & Dict.CM_BLOCK) || (element.tag == tt.tagDt))
{
lexer.inlineDup(null);
}
else if (TidyUtils.toBoolean(element.tag.model & Dict.CM_INLINE)
// EUNYEE: Add back this condition
// because this causes the infinite loop problem when the span does not have the ending tag.
&& element.tag != tt.tagA && element.tag != tt.tagSpan)
{
// && element.tag != tt.tagSpan #540571 Inconsistent behaviour with span inline element
lexer.pushInline(element);
}
if (element.tag == tt.tagNobr)
{
lexer.badLayout |= Report.USING_NOBR;
}
else if (element.tag == tt.tagFont)
{
lexer.badLayout |= Report.USING_FONT;
}
// Inline elements may or may not be within a preformatted element
if (mode != Lexer.PREFORMATTED)
{
mode = Lexer.MIXED_CONTENT;
}
while ((node = lexer.getToken(mode)) != null)
{
// end tag for current element
if (node.tag == element.tag && node.type == Node.END_TAG)
{
if (TidyUtils.toBoolean(element.tag.model & Dict.CM_INLINE))
{
lexer.popInline(node);
}
if (!TidyUtils.toBoolean(mode & Lexer.PREFORMATTED))
{
Node.trimSpaces(lexer, element);
}
// if a font element wraps an anchor and nothing else then move the font element inside the anchor
// since otherwise it won't alter the anchor text color
if (element.tag == tt.tagFont && element.content != null && element.content == element.last)
{
Node child = element.content;
if (child.tag == tt.tagA)
{
child.parent = element.parent;
child.next = element.next;
child.prev = element.prev;
if (child.prev != null)
{
child.prev.next = child;
}
else
{
child.parent.content = child;
}
if (child.next != null)
{
child.next.prev = child;
}
else
{
child.parent.last = child;
}
element.next = null;
element.prev = null;
element.parent = child;
element.content = child.content;
element.last = child.last;
child.content = element;
child.last = element;
for (child = element.content; child != null; child = child.next)
{
child.parent = element;
}
}
}
element.closed = true;
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
// <u> ... <u> map 2nd <u> to </u> if 1st is explicit
// otherwise emphasis nesting is probably unintentional
// big and small have cumulative effect to leave them alone
if (node.type == Node.START_TAG
&& node.tag == element.tag
&& lexer.isPushed(node)
&& !node.implicit
&& !element.implicit
&& node.tag != null
&& ((node.tag.model & Dict.CM_INLINE) != 0)
&& node.tag != tt.tagA
&& node.tag != tt.tagFont
&& node.tag != tt.tagBig
&& node.tag != tt.tagSmall
&& node.tag != tt.tagQ)
{
if (element.content != null && node.attributes == null)
{
lexer.report.warning(lexer, element, node, Report.COERCE_TO_ENDTAG);
node.type = Node.END_TAG;
lexer.ungetToken();
continue;
}
lexer.report.warning(lexer, element, node, Report.NESTED_EMPHASIS);
}
else if (lexer.isPushed(node) && node.type == Node.START_TAG && node.tag == tt.tagQ)
{
lexer.report.warning(lexer, element, node, Report.NESTED_QUOTATION);
}
if (node.type == Node.TEXT_NODE)
{
// only called for 1st child
if (element.content == null && !TidyUtils.toBoolean(mode & Lexer.PREFORMATTED))
{
Node.trimSpaces(lexer, element);
}
if (node.start >= node.end)
{
continue;
}
element.insertNodeAtEnd(node);
continue;
}
// mixed content model so allow text
if (Node.insertMisc(element, node))
{
continue;
}
// deal with HTML tags
if (node.tag == tt.tagHtml)
{
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// otherwise infer end of inline element
lexer.ungetToken();
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
// within <dt> or <pre> map <p> to <br>
if (node.tag == tt.tagP
&& node.type == Node.START_TAG
&& ((mode & Lexer.PREFORMATTED) != 0 || element.tag == tt.tagDt || element.isDescendantOf(tt.tagDt)))
{
node.tag = tt.tagBr;
node.element = "br";
Node.trimSpaces(lexer, element);
element.insertNodeAtEnd(node);
continue;
}
// ignore unknown and PARAM tags
if (node.tag == null || node.tag == tt.tagParam)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag == tt.tagBr && node.type == Node.END_TAG)
{
node.type = Node.START_TAG;
}
if (node.type == Node.END_TAG)
{
// coerce </br> to <br>
if (node.tag == tt.tagBr)
{
node.type = Node.START_TAG;
}
else if (node.tag == tt.tagP)
{
// coerce unmatched </p> to <br><br>
if (!element.isDescendantOf(tt.tagP))
{
Node.coerceNode(lexer, node, tt.tagBr);
Node.trimSpaces(lexer, element);
element.insertNodeAtEnd(node);
node = lexer.inferredTag("br");
continue;
}
}
else if ((node.tag.model & Dict.CM_INLINE) != 0
&& node.tag != tt.tagA
&& !((node.tag.model & Dict.CM_OBJECT) != 0)
&& (element.tag.model & Dict.CM_INLINE) != 0)
{
// allow any inline end tag to end current element
lexer.popInline(element);
if (element.tag != tt.tagA)
{
if (node.tag == tt.tagA && node.tag != element.tag)
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
}
else
{
lexer.report.warning(lexer, element, node, Report.NON_MATCHING_ENDTAG);
}
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
// if parent is <a> then discard unexpected inline end tag
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
} // special case </tr> etc. for stuff moved in front of table
else if (lexer.exiled && node.tag.model != 0 && (node.tag.model & Dict.CM_TABLE) != 0)
{
lexer.ungetToken();
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
// allow any header tag to end current header
if ((node.tag.model & Dict.CM_HEADING) != 0 && (element.tag.model & Dict.CM_HEADING) != 0)
{
if (node.tag == element.tag)
{
lexer.report.warning(lexer, element, node, Report.NON_MATCHING_ENDTAG);
}
else
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
}
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
// an <A> tag to ends any open <A> element but <A href=...> is mapped to </A><A href=...>
// #427827 - fix by Randy Waki and Bjoern Hoehrmann 23 Aug 00
// if (node.tag == tt.tagA && !node.implicit && lexer.isPushed(node))
if (node.tag == tt.tagA
&& !node.implicit
&& (element.tag == tt.tagA || element.isDescendantOf(tt.tagA)))
{
// coerce <a> to </a> unless it has some attributes
// #427827 - fix by Randy Waki and Bjoern Hoehrmann 23 Aug 00
// other fixes by Dave Raggett
// if (node.attributes == null)
if (node.type != Node.END_TAG && node.attributes == null)
{
node.type = Node.END_TAG;
lexer.report.warning(lexer, element, node, Report.COERCE_TO_ENDTAG);
// lexer.popInline(node);
lexer.ungetToken();
continue;
}
lexer.ungetToken();
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
// lexer.popInline(element);
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
if ((element.tag.model & Dict.CM_HEADING) != 0)
{
if (node.tag == tt.tagCenter || node.tag == tt.tagDiv)
{
if (node.type != Node.START_TAG && node.type != Node.START_END_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
lexer.report.warning(lexer, element, node, Report.TAG_NOT_ALLOWED_IN);
// insert center as parent if heading is empty
if (element.content == null)
{
Node.insertNodeAsParent(element, node);
continue;
}
// split heading and make center parent of 2nd part
element.insertNodeAfterElement(node);
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
element = lexer.cloneNode(element);
element.start = lexer.lexsize;
element.end = lexer.lexsize;
node.insertNodeAtEnd(element);
continue;
}
if (node.tag == tt.tagHr)
{
if (node.type != Node.START_TAG && node.type != Node.START_END_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
lexer.report.warning(lexer, element, node, Report.TAG_NOT_ALLOWED_IN);
// insert hr before heading if heading is empty
if (element.content == null)
{
Node.insertNodeBeforeElement(element, node);
continue;
}
// split heading and insert hr before 2nd part
element.insertNodeAfterElement(node);
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
element = lexer.cloneNode(element);
element.start = lexer.lexsize;
element.end = lexer.lexsize;
node.insertNodeAfterElement(element);
continue;
}
}
if (element.tag == tt.tagDt)
{
if (node.tag == tt.tagHr)
{
Node dd;
if (node.type != Node.START_TAG && node.type != Node.START_END_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
lexer.report.warning(lexer, element, node, Report.TAG_NOT_ALLOWED_IN);
dd = lexer.inferredTag("dd");
// insert hr within dd before dt if dt is empty
if (element.content == null)
{
Node.insertNodeBeforeElement(element, dd);
dd.insertNodeAtEnd(node);
continue;
}
// split dt and insert hr within dd before 2nd part
element.insertNodeAfterElement(dd);
dd.insertNodeAtEnd(node);
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
element = lexer.cloneNode(element);
element.start = lexer.lexsize;
element.end = lexer.lexsize;
dd.insertNodeAfterElement(element);
continue;
}
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
for (parent = element.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
if (!((element.tag.model & Dict.CM_OPT) != 0) && !element.implicit)
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
}
if (element.tag == tt.tagA)
{
lexer.popInline(element);
}
lexer.ungetToken();
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
}
}
// block level tags end this element
if (!((node.tag.model & Dict.CM_INLINE) != 0))
{
if (node.type != Node.START_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (!((element.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
}
if ((node.tag.model & Dict.CM_HEAD) != 0 && !((node.tag.model & Dict.CM_BLOCK) != 0))
{
moveToHead(lexer, element, node);
continue;
}
// prevent anchors from propagating into block tags except for headings h1 to h6
if (element.tag == tt.tagA)
{
if (node.tag != null && !((node.tag.model & Dict.CM_HEADING) != 0))
{
lexer.popInline(element);
}
else if (!(element.content != null))
{
Node.discardElement(element);
lexer.ungetToken();
return;
}
}
lexer.ungetToken();
if (!((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, element);
}
Node.trimEmptyElement(lexer, element);
return;
}
// parse inline element
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (node.implicit)
{
lexer.report.warning(lexer, element, node, Report.INSERTING_TAG);
}
// trim white space before <br>
if (node.tag == tt.tagBr)
{
Node.trimSpaces(lexer, element);
}
element.insertNodeAtEnd(node);
parseTag(lexer, node, mode);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (!((element.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_FOR);
}
Node.trimEmptyElement(lexer, element);
}
}
/**
* Parser for LIST.
*/
public static class ParseList implements Parser
{
public void parse(Lexer lexer, Node list, short mode)
{
Node node;
Node parent;
TagTable tt = lexer.configuration.tt;
if ((list.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
lexer.insert = -1; // defer implicit inline start tags
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == list.tag && node.type == Node.END_TAG)
{
if ((list.tag.model & Dict.CM_OBSOLETE) != 0)
{
Node.coerceNode(lexer, list, tt.tagUl);
}
list.closed = true;
Node.trimEmptyElement(lexer, list);
return;
}
// deal with comments etc.
if (Node.insertMisc(list, node))
{
continue;
}
if (node.type != Node.TEXT_NODE && node.tag == null)
{
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag != null && (node.tag.model & Dict.CM_INLINE) != 0)
{
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
lexer.popInline(node);
continue;
}
for (parent = list.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.report.warning(lexer, list, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
if ((list.tag.model & Dict.CM_OBSOLETE) != 0)
{
Node.coerceNode(lexer, list, tt.tagUl);
}
Node.trimEmptyElement(lexer, list);
return;
}
}
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag != tt.tagLi)
{
lexer.ungetToken();
if (node.tag != null && (node.tag.model & Dict.CM_BLOCK) != 0 && lexer.excludeBlocks)
{
lexer.report.warning(lexer, list, node, Report.MISSING_ENDTAG_BEFORE);
Node.trimEmptyElement(lexer, list);
return;
}
node = lexer.inferredTag("li");
node.addAttribute("style", "list-style: none");
lexer.report.warning(lexer, list, node, Report.MISSING_STARTTAG);
}
// node should be <LI>
list.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
if ((list.tag.model & Dict.CM_OBSOLETE) != 0)
{
Node.coerceNode(lexer, list, tt.tagUl);
}
lexer.report.warning(lexer, list, node, Report.MISSING_ENDTAG_FOR);
Node.trimEmptyElement(lexer, list);
}
}
/**
* Parser for empty elements.
*/
public static class ParseEmpty implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node element, short mode)
{
if (lexer.isvoyager)
{
Node node = lexer.getToken(mode);
if (node != null && !(node.type == Node.END_TAG && node.tag == element.tag))
{
lexer.report.warning(lexer, element, node, Report.ELEMENT_NOT_EMPTY);
lexer.ungetToken();
}
}
}
}
/**
* Parser for DEFLIST.
*/
public static class ParseDefList implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node list, short mode)
{
Node node, parent;
TagTable tt = lexer.configuration.tt;
if ((list.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
lexer.insert = -1; // defer implicit inline start tags
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == list.tag && node.type == Node.END_TAG)
{
list.closed = true;
Node.trimEmptyElement(lexer, list);
return;
}
// deal with comments etc.
if (Node.insertMisc(list, node))
{
continue;
}
if (node.type == Node.TEXT_NODE)
{
lexer.ungetToken();
node = lexer.inferredTag("dt");
lexer.report.warning(lexer, list, node, Report.MISSING_STARTTAG);
}
if (node.tag == null)
{
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
for (parent = list.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.report.warning(lexer, list, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
Node.trimEmptyElement(lexer, list);
return;
}
}
}
// center in a dt or a dl breaks the dl list in two
if (node.tag == tt.tagCenter)
{
if (list.content != null)
{
list.insertNodeAfterElement(node);
}
else
{
// trim empty dl list
Node.insertNodeBeforeElement(list, node);
// #540296 tidy dumps with empty definition list
Node.discardElement(list);
}
// and parse contents of center
parseTag(lexer, node, mode);
// now create a new dl element
list = lexer.inferredTag("dl");
node.insertNodeAfterElement(list);
continue;
}
if (!(node.tag == tt.tagDt || node.tag == tt.tagDd))
{
lexer.ungetToken();
if (!((node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0))
{
lexer.report.warning(lexer, list, node, Report.TAG_NOT_ALLOWED_IN);
Node.trimEmptyElement(lexer, list);
return;
}
// if DD appeared directly in BODY then exclude blocks
if (!((node.tag.model & Dict.CM_INLINE) != 0) && lexer.excludeBlocks)
{
Node.trimEmptyElement(lexer, list);
return;
}
node = lexer.inferredTag("dd");
lexer.report.warning(lexer, list, node, Report.MISSING_STARTTAG);
}
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, list, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// node should be <DT> or <DD>
list.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
lexer.report.warning(lexer, list, node, Report.MISSING_ENDTAG_FOR);
Node.trimEmptyElement(lexer, list);
}
}
/**
* Parser for PRE.
*/
public static class ParsePre implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node pre, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
if ((pre.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
if ((pre.tag.model & Dict.CM_OBSOLETE) != 0)
{
Node.coerceNode(lexer, pre, tt.tagPre);
}
lexer.inlineDup(null); // tell lexer to insert inlines if needed
while ((node = lexer.getToken(Lexer.PREFORMATTED)) != null)
{
if (node.tag == pre.tag && node.type == Node.END_TAG)
{
Node.trimSpaces(lexer, pre);
pre.closed = true;
Node.trimEmptyElement(lexer, pre);
return;
}
if (node.tag == tt.tagHtml)
{
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
lexer.report.warning(lexer, pre, node, Report.DISCARDING_UNEXPECTED);
}
continue;
}
if (node.type == Node.TEXT_NODE)
{
// if first check for inital newline
if (pre.content == null)
{
if (node.textarray[node.start] == (byte) '\n')
{
++node.start;
}
if (node.start >= node.end)
{
continue;
}
}
pre.insertNodeAtEnd(node);
continue;
}
// deal with comments etc.
if (Node.insertMisc(pre, node))
{
continue;
}
// strip unexpected tags
if (!lexer.preContent(node))
{
Node newnode;
lexer.report.warning(lexer, pre, node, Report.UNESCAPED_ELEMENT);
newnode = Node.escapeTag(lexer, node);
pre.insertNodeAtEnd(newnode);
continue;
}
if (node.tag == tt.tagP)
{
if (node.type == Node.START_TAG)
{
lexer.report.warning(lexer, pre, node, Report.USING_BR_INPLACE_OF);
// trim white space before <p> in <pre>
Node.trimSpaces(lexer, pre);
// coerce both <p> and </p> to <br>
Node.coerceNode(lexer, node, tt.tagBr);
pre.insertNodeAtEnd(node);
}
else
{
lexer.report.warning(lexer, pre, node, Report.DISCARDING_UNEXPECTED);
}
continue;
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
// trim white space before <br>
if (node.tag == tt.tagBr)
{
Node.trimSpaces(lexer, pre);
}
pre.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.PREFORMATTED);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, pre, node, Report.DISCARDING_UNEXPECTED);
}
lexer.report.warning(lexer, pre, node, Report.MISSING_ENDTAG_FOR);
Node.trimEmptyElement(lexer, pre);
}
}
/**
* Parser for block elements.
*/
public static class ParseBlock implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node element, short mode)
{
// element is node created by the lexer upon seeing the start tag, or by the parser when the start tag is
// inferred.
Node node, parent;
boolean checkstack;
int istackbase = 0;
TagTable tt = lexer.configuration.tt;
checkstack = true;
if ((element.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
if (element.tag == tt.tagForm && element.isDescendantOf(tt.tagForm))
{
lexer.report.warning(lexer, element, null, Report.ILLEGAL_NESTING);
}
// InlineDup() asks the lexer to insert inline emphasis tags currently pushed on the istack, but take care
// to avoid propagating inline emphasis inside OBJECT or APPLET. For these elements a fresh inline stack
// context is created and disposed of upon reaching the end of the element. They thus behave like table
// cells in this respect.
if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
istackbase = lexer.istackbase;
lexer.istackbase = lexer.istack.size();
}
if (!((element.tag.model & Dict.CM_MIXED) != 0))
{
lexer.inlineDup(null);
}
mode = Lexer.IGNORE_WHITESPACE;
while ((node = lexer.getToken(mode)) != null)
{
// end tag for this element
if (node.type == Node.END_TAG
&& node.tag != null
&& (node.tag == element.tag || element.was == node.tag))
{
if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
// pop inline stack
while (lexer.istack.size() > lexer.istackbase)
{
lexer.popInline(null);
}
lexer.istackbase = istackbase;
}
element.closed = true;
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
if (node.tag == tt.tagHtml || node.tag == tt.tagHead || node.tag == tt.tagBody)
{
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
}
continue;
}
if (node.type == Node.END_TAG)
{
if (node.tag == null)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
else if (node.tag == tt.tagBr)
{
node.type = Node.START_TAG;
}
else if (node.tag == tt.tagP)
{
Node.coerceNode(lexer, node, tt.tagBr);
element.insertNodeAtEnd(node);
node = lexer.inferredTag("br");
}
else
{
// if this is the end tag for an ancestor element then infer end tag for this element
for (parent = element.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
if (!((element.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
}
lexer.ungetToken();
if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
// pop inline stack
while (lexer.istack.size() > lexer.istackbase)
{
lexer.popInline(null);
}
lexer.istackbase = istackbase;
}
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
// special case </tr> etc. for stuff moved in front of table
if (lexer.exiled && node.tag.model != 0 && (node.tag.model & Dict.CM_TABLE) != 0)
{
lexer.ungetToken();
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
}
// mixed content model permits text
if (node.type == Node.TEXT_NODE)
{
boolean iswhitenode = false;
if (node.type == Node.TEXT_NODE
&& node.end <= node.start + 1
&& lexer.lexbuf[node.start] == (byte) ' ')
{
iswhitenode = true;
}
if (lexer.configuration.encloseBlockText && !iswhitenode)
{
lexer.ungetToken();
node = lexer.inferredTag("p");
element.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.MIXED_CONTENT);
continue;
}
if (checkstack)
{
checkstack = false;
if (!((element.tag.model & Dict.CM_MIXED) != 0))
{
if (lexer.inlineDup(node) > 0)
{
continue;
}
}
}
element.insertNodeAtEnd(node);
mode = Lexer.MIXED_CONTENT;
// HTML4 strict doesn't allow mixed content for elements with %block; as their content model
// But only body, map, blockquote, form and noscript have content model %block;
if (element.tag == tt.tagBody
|| element.tag == tt.tagMap
|| element.tag == tt.tagBlockquote
|| element.tag == tt.tagForm
|| element.tag == tt.tagNoscript)
{
lexer.constrainVersion(~Dict.VERS_HTML40_STRICT);
}
continue;
}
if (Node.insertMisc(element, node))
{
continue;
}
// allow PARAM elements?
if (node.tag == tt.tagParam)
{
if (((element.tag.model & Dict.CM_PARAM) != 0)
&& (node.type == Node.START_TAG || node.type == Node.START_END_TAG))
{
element.insertNodeAtEnd(node);
continue;
}
// otherwise discard it
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// allow AREA elements?
if (node.tag == tt.tagArea)
{
if ((element.tag == tt.tagMap) && (node.type == Node.START_TAG || node.type == Node.START_END_TAG))
{
element.insertNodeAtEnd(node);
continue;
}
// otherwise discard it
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// ignore unknown start/end tags
if (node.tag == null)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// Allow Dict.CM_INLINE elements here. Allow Dict.CM_BLOCK elements here unless lexer.excludeBlocks is
// yes. LI and DD are special cased. Otherwise infer end tag for this element.
if (!((node.tag.model & Dict.CM_INLINE) != 0))
{
if (node.type != Node.START_TAG && node.type != Node.START_END_TAG)
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
}
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// #427671 - Fix by Randy Waki - 10 Aug 00
// If an LI contains an illegal FRAME, FRAMESET, OPTGROUP, or OPTION start tag, discard the start
// tag and let the subsequent content get parsed as content of the enclosing LI. This seems to
// mimic IE and Netscape, and avoids an infinite loop: without this check, ParseBlock (which is
// parsing the LI's content) and ParseList (which is parsing the LI's parent's content) repeatedly
// defer to each other to parse the illegal start tag, each time inferring a missing </li> or <li>
// respectively. NOTE: This check is a bit fragile. It specifically checks for the four tags that
// happen to weave their way through the current series of tests performed by ParseBlock and
// ParseList to trigger the infinite loop.
if (element.tag == tt.tagLi)
{
if (node.tag == tt.tagFrame
|| node.tag == tt.tagFrameset
|| node.tag == tt.tagOptgroup
|| node.tag == tt.tagOption)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
}
if (element.tag == tt.tagTd || element.tag == tt.tagTh)
{
// if parent is a table cell, avoid inferring the end of the cell
if ((node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, element, node);
continue;
}
if ((node.tag.model & Dict.CM_LIST) != 0)
{
lexer.ungetToken();
node = lexer.inferredTag("ul");
node.addClass("noindent");
lexer.excludeBlocks = true;
}
else if ((node.tag.model & Dict.CM_DEFLIST) != 0)
{
lexer.ungetToken();
node = lexer.inferredTag("dl");
lexer.excludeBlocks = true;
}
// infer end of current table cell
if (!((node.tag.model & Dict.CM_BLOCK) != 0))
{
lexer.ungetToken();
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
else if ((node.tag.model & Dict.CM_BLOCK) != 0)
{
if (lexer.excludeBlocks)
{
if (!((element.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
}
lexer.ungetToken();
if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
lexer.istackbase = istackbase;
}
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
else
{
// things like list items
if ((node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, element, node);
continue;
}
// special case where a form start tag occurs in a tr and is followed by td or th
if (element.tag == tt.tagForm && element.parent.tag == tt.tagTd && element.parent.implicit)
{
if (node.tag == tt.tagTd)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag == tt.tagTh)
{
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
node = element.parent;
node.element = "th";
node.tag = tt.tagTh;
continue;
}
}
if (!((element.tag.model & Dict.CM_OPT) != 0) && !element.implicit)
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_BEFORE);
}
lexer.ungetToken();
if ((node.tag.model & Dict.CM_LIST) != 0)
{
if (element.parent != null
&& element.parent.tag != null
&& element.parent.tag.getParser() == LIST)
{
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
node = lexer.inferredTag("ul");
node.addClass("noindent");
}
else if ((node.tag.model & Dict.CM_DEFLIST) != 0)
{
if (element.parent.tag == tt.tagDl)
{
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
node = lexer.inferredTag("dl");
}
else if ((node.tag.model & Dict.CM_TABLE) != 0 || (node.tag.model & Dict.CM_ROW) != 0)
{
node = lexer.inferredTag("table");
}
else if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
// pop inline stack
while (lexer.istack.size() > lexer.istackbase)
{
lexer.popInline(null);
}
lexer.istackbase = istackbase;
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
else
{
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
return;
}
}
}
// parse known element
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
if (TidyUtils.toBoolean(node.tag.model & Dict.CM_INLINE))
{
// DSR - 27Apr02 ensure we wrap anchors and other inline content
// fgiust: commented out due to [1403105]: java.lang.StackOverflowError in Tidy.parseDOM()
// if (lexer.configuration.encloseBlockText)
// {
// lexer.ungetToken();
// node = lexer.inferredTag("p");
// element.insertNodeAtEnd(node);
// parseTag(lexer, node, Lexer.MIXED_CONTENT);
// continue;
// }
if (checkstack && !node.implicit)
{
checkstack = false;
// #431731 - fix by Randy Waki 25 Dec 00
if (!TidyUtils.toBoolean(element.tag.model & Dict.CM_MIXED))
{
if (lexer.inlineDup(node) > 0)
{
continue;
}
}
}
mode = Lexer.MIXED_CONTENT;
}
else
{
checkstack = true;
mode = Lexer.IGNORE_WHITESPACE;
}
// trim white space before <br>
if (node.tag == tt.tagBr)
{
Node.trimSpaces(lexer, element);
}
element.insertNodeAtEnd(node);
if (node.implicit)
{
lexer.report.warning(lexer, element, node, Report.INSERTING_TAG);
}
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE // Lexer.MixedContent
);
continue;
}
// discard unexpected tags
if (node.type == Node.END_TAG)
{
lexer.popInline(node); // if inline end tag
}
lexer.report.warning(lexer, element, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (!((element.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, element, node, Report.MISSING_ENDTAG_FOR);
}
if ((element.tag.model & Dict.CM_OBJECT) != 0)
{
// pop inline stack
while (lexer.istack.size() > lexer.istackbase)
{
lexer.popInline(null);
}
lexer.istackbase = istackbase;
}
Node.trimSpaces(lexer, element);
Node.trimEmptyElement(lexer, element);
}
}
/**
* Parser for TABLE.
*/
public static class ParseTableTag implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node table, short mode)
{
Node node, parent;
int istackbase;
TagTable tt = lexer.configuration.tt;
lexer.deferDup();
istackbase = lexer.istackbase;
lexer.istackbase = lexer.istack.size();
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == table.tag && node.type == Node.END_TAG)
{
lexer.istackbase = istackbase;
table.closed = true;
Node.trimEmptyElement(lexer, table);
return;
}
// deal with comments etc.
if (Node.insertMisc(table, node))
{
continue;
}
// discard unknown tags
if (node.tag == null && node.type != Node.TEXT_NODE)
{
lexer.report.warning(lexer, table, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// if TD or TH or text or inline or block then infer <TR>
if (node.type != Node.END_TAG)
{
if (node.tag == tt.tagTd || node.tag == tt.tagTh || node.tag == tt.tagTable)
{
lexer.ungetToken();
node = lexer.inferredTag("tr");
lexer.report.warning(lexer, table, node, Report.MISSING_STARTTAG);
}
else if (node.type == Node.TEXT_NODE || (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0)
{
Node.insertNodeBeforeElement(table, node);
lexer.report.warning(lexer, table, node, Report.TAG_NOT_ALLOWED_IN);
lexer.exiled = true;
if (!(node.type == Node.TEXT_NODE)) // #427662 - was (!node.type == TextNode) - fix by Young
{
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
lexer.exiled = false;
continue;
}
else if ((node.tag.model & Dict.CM_HEAD) != 0)
{
moveToHead(lexer, table, node);
continue;
}
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagForm
|| (node.tag != null && ((node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0)))
{
badForm(lexer);
lexer.report.warning(lexer, table, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if ((node.tag != null && (node.tag.model & (Dict.CM_TABLE | Dict.CM_ROW)) != 0)
|| (node.tag != null && (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0))
{
lexer.report.warning(lexer, table, node, Report.DISCARDING_UNEXPECTED);
continue;
}
for (parent = table.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.report.warning(lexer, table, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
lexer.istackbase = istackbase;
Node.trimEmptyElement(lexer, table);
return;
}
}
}
if (!((node.tag.model & Dict.CM_TABLE) != 0))
{
lexer.ungetToken();
lexer.report.warning(lexer, table, node, Report.TAG_NOT_ALLOWED_IN);
lexer.istackbase = istackbase;
Node.trimEmptyElement(lexer, table);
return;
}
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
table.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
continue;
}
// discard unexpected text nodes and end tags
lexer.report.warning(lexer, table, node, Report.DISCARDING_UNEXPECTED);
}
lexer.report.warning(lexer, table, node, Report.MISSING_ENDTAG_FOR);
Node.trimEmptyElement(lexer, table);
lexer.istackbase = istackbase;
}
}
/**
* Parser for COLGROUP.
*/
public static class ParseColGroup implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node colgroup, short mode)
{
Node node, parent;
TagTable tt = lexer.configuration.tt;
if ((colgroup.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == colgroup.tag && node.type == Node.END_TAG)
{
colgroup.closed = true;
return;
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
lexer.report.warning(lexer, colgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
for (parent = colgroup.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.ungetToken();
return;
}
}
}
if (node.type == Node.TEXT_NODE)
{
lexer.ungetToken();
return;
}
// deal with comments etc.
if (Node.insertMisc(colgroup, node))
{
continue;
}
// discard unknown tags
if (node.tag == null)
{
lexer.report.warning(lexer, colgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag != tt.tagCol)
{
lexer.ungetToken();
return;
}
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, colgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// node should be <COL>
colgroup.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
}
}
/**
* Parser for ROWGROUP.
*/
public static class ParseRowGroup implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node rowgroup, short mode)
{
Node node, parent;
TagTable tt = lexer.configuration.tt;
if ((rowgroup.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == rowgroup.tag)
{
if (node.type == Node.END_TAG)
{
rowgroup.closed = true;
Node.trimEmptyElement(lexer, rowgroup);
return;
}
lexer.ungetToken();
return;
}
// if </table> infer end tag
if (node.tag == tt.tagTable && node.type == Node.END_TAG)
{
lexer.ungetToken();
Node.trimEmptyElement(lexer, rowgroup);
return;
}
// deal with comments etc.
if (Node.insertMisc(rowgroup, node))
{
continue;
}
// discard unknown tags
if (node.tag == null && node.type != Node.TEXT_NODE)
{
lexer.report.warning(lexer, rowgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// if TD or TH then infer <TR> if text or inline or block move before table if head content move to
// head
if (node.type != Node.END_TAG)
{
if (node.tag == tt.tagTd || node.tag == tt.tagTh)
{
lexer.ungetToken();
node = lexer.inferredTag("tr");
lexer.report.warning(lexer, rowgroup, node, Report.MISSING_STARTTAG);
}
else if (node.type == Node.TEXT_NODE || (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0)
{
Node.moveBeforeTable(rowgroup, node, tt);
lexer.report.warning(lexer, rowgroup, node, Report.TAG_NOT_ALLOWED_IN);
lexer.exiled = true;
// #427662 was (!node.type == TextNode) fix by Young 04 Aug 00
if (node.type != Node.TEXT_NODE)
{
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
lexer.exiled = false;
continue;
}
else if ((node.tag.model & Dict.CM_HEAD) != 0)
{
lexer.report.warning(lexer, rowgroup, node, Report.TAG_NOT_ALLOWED_IN);
moveToHead(lexer, rowgroup, node);
continue;
}
}
// if this is the end tag for ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (node.tag == tt.tagForm
|| (node.tag != null && (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0))
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
}
lexer.report.warning(lexer, rowgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag == tt.tagTr || node.tag == tt.tagTd || node.tag == tt.tagTh)
{
lexer.report.warning(lexer, rowgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
for (parent = rowgroup.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.ungetToken();
Node.trimEmptyElement(lexer, rowgroup);
return;
}
}
}
// if THEAD, TFOOT or TBODY then implied end tag
if ((node.tag.model & Dict.CM_ROWGRP) != 0)
{
if (node.type != Node.END_TAG)
{
lexer.ungetToken();
}
Node.trimEmptyElement(lexer, rowgroup);
return;
}
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, rowgroup, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (!(node.tag == tt.tagTr))
{
node = lexer.inferredTag("tr");
lexer.report.warning(lexer, rowgroup, node, Report.MISSING_STARTTAG);
lexer.ungetToken();
}
// node should be <TR>
rowgroup.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
Node.trimEmptyElement(lexer, rowgroup);
}
}
/**
* Parser for ROW.
*/
public static class ParseRow implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node row, short mode)
{
Node node, parent;
boolean excludeState;
TagTable tt = lexer.configuration.tt;
if ((row.tag.model & Dict.CM_EMPTY) != 0)
{
return;
}
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == row.tag)
{
if (node.type == Node.END_TAG)
{
row.closed = true;
Node.fixEmptyRow(lexer, row);
return;
}
lexer.ungetToken();
Node.fixEmptyRow(lexer, row);
return;
}
// if this is the end tag for an ancestor element then infer end tag for this element
if (node.type == Node.END_TAG)
{
if (((node.tag != null && (node.tag.model & (Dict.CM_HTML | Dict.CM_TABLE)) != 0)
|| node.tag == tt.tagTable)
&& row.isDescendantOf(node.tag)) {
lexer.ungetToken();
return;
}
if (node.tag == tt.tagForm
|| (node.tag != null && (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0))
{
if (node.tag == tt.tagForm)
{
badForm(lexer);
}
lexer.report.warning(lexer, row, node, Report.DISCARDING_UNEXPECTED);
continue;
}
if (node.tag == tt.tagTd || node.tag == tt.tagTh)
{
lexer.report.warning(lexer, row, node, Report.DISCARDING_UNEXPECTED);
continue;
}
for (parent = row.parent; parent != null; parent = parent.parent)
{
if (node.tag == parent.tag)
{
lexer.ungetToken();
Node.trimEmptyElement(lexer, row);
return;
}
}
}
// deal with comments etc.
if (Node.insertMisc(row, node))
{
continue;
}
// discard unknown tags
if (node.tag == null && node.type != Node.TEXT_NODE)
{
lexer.report.warning(lexer, row, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// discard unexpected <table> element
if (node.tag == tt.tagTable)
{
lexer.report.warning(lexer, row, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// THEAD, TFOOT or TBODY
if (node.tag != null && (node.tag.model & Dict.CM_ROWGRP) != 0)
{
lexer.ungetToken();
Node.trimEmptyElement(lexer, row);
return;
}
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, row, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// if text or inline or block move before table if head content move to head
if (node.type != Node.END_TAG)
{
if (node.tag == tt.tagForm)
{
lexer.ungetToken();
node = lexer.inferredTag("td");
lexer.report.warning(lexer, row, node, Report.MISSING_STARTTAG);
}
else if (node.type == Node.TEXT_NODE || (node.tag.model & (Dict.CM_BLOCK | Dict.CM_INLINE)) != 0)
{
Node.moveBeforeTable(row, node, tt);
lexer.report.warning(lexer, row, node, Report.TAG_NOT_ALLOWED_IN);
lexer.exiled = true;
if (node.type != Node.TEXT_NODE)
{
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
}
lexer.exiled = false;
continue;
}
else if ((node.tag.model & Dict.CM_HEAD) != 0)
{
lexer.report.warning(lexer, row, node, Report.TAG_NOT_ALLOWED_IN);
moveToHead(lexer, row, node);
continue;
}
}
if (!(node.tag == tt.tagTd || node.tag == tt.tagTh))
{
lexer.report.warning(lexer, row, node, Report.TAG_NOT_ALLOWED_IN);
continue;
}
// node should be <TD> or <TH>
row.insertNodeAtEnd(node);
excludeState = lexer.excludeBlocks;
lexer.excludeBlocks = false;
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
lexer.excludeBlocks = excludeState;
// pop inline stack
while (lexer.istack.size() > lexer.istackbase)
{
lexer.popInline(null);
}
}
Node.trimEmptyElement(lexer, row);
}
}
/**
* Parser for NOFRAMES.
*/
public static class ParseNoFrames implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node noframes, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
lexer.badAccess |= Report.USING_NOFRAMES;
mode = Lexer.IGNORE_WHITESPACE;
while ((node = lexer.getToken(mode)) != null)
{
if (node.tag == noframes.tag && node.type == Node.END_TAG)
{
noframes.closed = true;
Node.trimSpaces(lexer, noframes);
return;
}
if ((node.tag == tt.tagFrame || node.tag == tt.tagFrameset))
{
Node.trimSpaces(lexer, noframes);
// fix for [539369]
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, noframes, node, Report.DISCARDING_UNEXPECTED);
// Throw it away
}
else
{
lexer.report.warning(lexer, noframes, node, Report.MISSING_ENDTAG_BEFORE);
lexer.ungetToken();
}
return;
}
if (node.tag == tt.tagHtml)
{
if (node.type == Node.START_TAG || node.type == Node.START_END_TAG)
{
lexer.report.warning(lexer, noframes, node, Report.DISCARDING_UNEXPECTED);
}
continue;
}
// deal with comments etc.
if (Node.insertMisc(noframes, node))
{
continue;
}
if (node.tag == tt.tagBody && node.type == Node.START_TAG)
{
boolean seenbody = lexer.seenEndBody;
noframes.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE); // MixedContent
if (seenbody)
{
Node.coerceNode(lexer, node, tt.tagDiv);
moveNodeToBody(lexer, node);
}
continue;
}
// implicit body element inferred
if (node.type == Node.TEXT_NODE || (node.tag != null && node.type != Node.END_TAG))
{
if (lexer.seenEndBody)
{
Node body = lexer.root.findBody(tt);
if (node.type == Node.TEXT_NODE)
{
lexer.ungetToken();
node = lexer.inferredTag("p");
lexer.report.warning(lexer, noframes, node, Report.CONTENT_AFTER_BODY);
}
body.insertNodeAtEnd(node);
}
else
{
lexer.ungetToken();
node = lexer.inferredTag("body");
if (lexer.configuration.xmlOut)
{
lexer.report.warning(lexer, noframes, node, Report.INSERTING_TAG);
}
noframes.insertNodeAtEnd(node);
}
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
// MixedContent
continue;
}
// discard unexpected end tags
lexer.report.warning(lexer, noframes, node, Report.DISCARDING_UNEXPECTED);
}
lexer.report.warning(lexer, noframes, node, Report.MISSING_ENDTAG_FOR);
}
}
/**
* Parser for SELECT.
*/
public static class ParseSelect implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node field, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
lexer.insert = -1; // defer implicit inline start tags
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == field.tag && node.type == Node.END_TAG)
{
field.closed = true;
Node.trimSpaces(lexer, field);
return;
}
// deal with comments etc.
if (Node.insertMisc(field, node))
{
continue;
}
if (node.type == Node.START_TAG
&& (node.tag == tt.tagOption || node.tag == tt.tagOptgroup || node.tag == tt.tagScript))
{
field.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.IGNORE_WHITESPACE);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, field, node, Report.DISCARDING_UNEXPECTED);
}
lexer.report.warning(lexer, field, node, Report.MISSING_ENDTAG_FOR);
}
}
/**
* Parser for text nodes.
*/
public static class ParseText implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node field, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
lexer.insert = -1; // defer implicit inline start tags
if (field.tag == tt.tagTextarea)
{
mode = Lexer.PREFORMATTED;
}
else
{
mode = Lexer.MIXED_CONTENT; // kludge for font tags
}
while ((node = lexer.getToken(mode)) != null)
{
if (node.tag == field.tag && node.type == Node.END_TAG)
{
field.closed = true;
Node.trimSpaces(lexer, field);
return;
}
// deal with comments etc.
if (Node.insertMisc(field, node))
{
continue;
}
if (node.type == Node.TEXT_NODE)
{
// only called for 1st child
if (field.content == null && !((mode & Lexer.PREFORMATTED) != 0))
{
Node.trimSpaces(lexer, field);
}
if (node.start >= node.end)
{
continue;
}
field.insertNodeAtEnd(node);
continue;
}
// for textarea should all cases of < and & be escaped?
// discard inline tags e.g. font
if (node.tag != null
&& ((node.tag.model & Dict.CM_INLINE) != 0)
&& (node.tag.model & Dict.CM_FIELD) == 0) // #487283 - fix by Lee Passey 25 Jan 02
{
lexer.report.warning(lexer, field, node, Report.DISCARDING_UNEXPECTED);
continue;
}
// terminate element on other tags
if (!((field.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, field, node, Report.MISSING_ENDTAG_BEFORE);
}
lexer.ungetToken();
Node.trimSpaces(lexer, field);
return;
}
if (!((field.tag.model & Dict.CM_OPT) != 0))
{
lexer.report.warning(lexer, field, node, Report.MISSING_ENDTAG_FOR);
}
}
}
/**
* Parser for OPTGROUP.
*/
public static class ParseOptGroup implements Parser
{
/**
* @see org.w3c.tidy5.Parser#parse(org.w3c.tidy5.Lexer, org.w3c.tidy5.Node, short)
*/
public void parse(Lexer lexer, Node field, short mode)
{
Node node;
TagTable tt = lexer.configuration.tt;
lexer.insert = -1; // defer implicit inline start tags
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
if (node.tag == field.tag && node.type == Node.END_TAG)
{
field.closed = true;
Node.trimSpaces(lexer, field);
return;
}
// deal with comments etc.
if (Node.insertMisc(field, node))
{
continue;
}
if (node.type == Node.START_TAG && (node.tag == tt.tagOption || node.tag == tt.tagOptgroup))
{
if (node.tag == tt.tagOptgroup)
{
lexer.report.warning(lexer, field, node, Report.CANT_BE_NESTED);
}
field.insertNodeAtEnd(node);
parseTag(lexer, node, Lexer.MIXED_CONTENT);
continue;
}
// discard unexpected tags
lexer.report.warning(lexer, field, node, Report.DISCARDING_UNEXPECTED);
}
}
}
/**
* HTML is the top level element.
*/
public static Node parseDocument(Lexer lexer)
{
Node node, document, html;
Node doctype = null;
TagTable tt = lexer.configuration.tt;
document = lexer.newNode();
document.type = Node.ROOT_NODE;
lexer.root = document;
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
// deal with comments etc.
if (Node.insertMisc(document, node))
{
continue;
}
if (node.type == Node.DOCTYPE_TAG)
{
if (doctype == null)
{
document.insertNodeAtEnd(node);
doctype = node;
}
else
{
lexer.report.warning(lexer, document, node, Report.DISCARDING_UNEXPECTED);
}
continue;
}
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, document, node, Report.DISCARDING_UNEXPECTED); // TODO?
continue;
}
if (node.type != Node.START_TAG || node.tag != tt.tagHtml)
{
lexer.ungetToken();
html = lexer.inferredTag("html");
}
else
{
html = node;
}
if (document.findDocType() == null && !lexer.configuration.bodyOnly)
{
lexer.report.warning(lexer, null, null, Report.MISSING_DOCTYPE);
}
document.insertNodeAtEnd(html);
HTML.parse(lexer, html, (short) 0); // TODO?
break;
}
if (lexer.root.findHTML(lexer.configuration.tt) == null) {
/* a later check should complain if <body> is empty */
html = lexer.inferredTag("html");
lexer.root.insertNodeAtEnd(html);
HTML.parse(lexer, html, Lexer.IGNORE_WHITESPACE);
}
if (lexer.root.findTITLE(lexer.configuration.tt) == null) {
Node head = lexer.root.findHEAD(lexer.configuration.tt);
lexer.report.warning(lexer, head, null, Report.MISSING_TITLE_ELEMENT);
head.insertNodeAtEnd(lexer.inferredTag("title"));
}
return document;
}
/**
* Indicates whether or not whitespace should be preserved for this element. If an <code>xml:space</code>
* attribute is found, then if the attribute value is <code>preserve</code>, returns <code>true</code>. For
* any other value, returns <code>false</code>. If an <code>xml:space</code> attribute was <em>not</em>
* found, then the following element names result in a return value of <code>true:
* pre, script, style,</code> and
* <code>xsl:text</code>. Finally, if a <code>TagTable</code> was passed in and the element appears as the
* "pre" element in the <code>TagTable</code>, then <code>true</code> will be returned. Otherwise,
* <code>false</code> is returned.
* @param element The <code>Node</code> to test to see if whitespace should be preserved.
* @param tt The <code>TagTable</code> to test for the <code>getNodePre()</code> function. This may be
* <code>null</code>, in which case this test is bypassed.
* @return <code>true</code> or <code>false</code>, as explained above.
*/
public static boolean XMLPreserveWhiteSpace(Node element, TagTable tt)
{
AttVal attribute;
// search attributes for xml:space
for (attribute = element.attributes; attribute != null; attribute = attribute.next)
{
if (attribute.attribute.equals("xml:space"))
{
if (attribute.value.equals("preserve"))
{
return true;
}
return false;
}
}
if (element.element == null) // Debian Bug #137124. Fix based on suggestion by Cesar Eduardo Barros 06 Mar 02
{
return false;
}
// kludge for html docs without explicit xml:space attribute
if ("pre".equalsIgnoreCase(element.element)
|| "script".equalsIgnoreCase(element.element)
|| "style".equalsIgnoreCase(element.element))
{
return true;
}
if ((tt != null) && (tt.findParser(element) == PRE))
{
return true;
}
// kludge for XSL docs
if ("xsl:text".equalsIgnoreCase(element.element))
{
return true;
}
return false;
}
/**
* XML documents.
*/
public static void parseXMLElement(Lexer lexer, Node element, short mode)
{
Node node;
// if node is pre or has xml:space="preserve" then do so
if (XMLPreserveWhiteSpace(element, lexer.configuration.tt))
{
mode = Lexer.PREFORMATTED;
}
while ((node = lexer.getToken(mode)) != null)
{
if (node.type == Node.END_TAG && node.element.equals(element.element))
{
element.closed = true;
break;
}
// discard unexpected end tags
if (node.type == Node.END_TAG)
{
lexer.report.error(lexer, element, node, Report.UNEXPECTED_ENDTAG);
continue;
}
// parse content on seeing start tag
if (node.type == Node.START_TAG)
{
parseXMLElement(lexer, node, mode);
}
element.insertNodeAtEnd(node);
}
// if first child is text then trim initial space and delete text node if it is empty.
node = element.content;
if (node != null && node.type == Node.TEXT_NODE && mode != Lexer.PREFORMATTED)
{
if (node.textarray[node.start] == (byte) ' ')
{
node.start++;
if (node.start >= node.end)
{
Node.discardElement(node);
}
}
}
// if last child is text then trim final space and delete the text node if it is empty
node = element.last;
if (node != null && node.type == Node.TEXT_NODE && mode != Lexer.PREFORMATTED)
{
if (node.textarray[node.end - 1] == (byte) ' ')
{
node.end--;
if (node.start >= node.end)
{
Node.discardElement(node);
}
}
}
}
public static Node parseXMLDocument(Lexer lexer)
{
Node node, document, doctype;
document = lexer.newNode();
document.type = Node.ROOT_NODE;
doctype = null;
lexer.configuration.xmlTags = true;
while ((node = lexer.getToken(Lexer.IGNORE_WHITESPACE)) != null)
{
// discard unexpected end tags
if (node.type == Node.END_TAG)
{
lexer.report.warning(lexer, null, node, Report.UNEXPECTED_ENDTAG);
continue;
}
// deal with comments etc.
if (Node.insertMisc(document, node))
{
continue;
}
if (node.type == Node.DOCTYPE_TAG)
{
if (doctype == null)
{
document.insertNodeAtEnd(node);
doctype = node;
}
else
{
lexer.report.warning(lexer, document, node, Report.DISCARDING_UNEXPECTED); // TODO
}
continue;
}
if (node.type == Node.START_END_TAG)
{
document.insertNodeAtEnd(node);
continue;
}
// if start tag then parse element's content
if (node.type == Node.START_TAG)
{
document.insertNodeAtEnd(node);
parseXMLElement(lexer, node, Lexer.IGNORE_WHITESPACE);
}
}
if (doctype != null && !lexer.checkDocTypeKeyWords(doctype))
{
lexer.report.warning(lexer, doctype, null, Report.DTYPE_NOT_UPPER_CASE);
}
// ensure presence of initial <?XML version="1.0"?>
if (lexer.configuration.xmlPi)
{
lexer.fixXmlDecl(document);
}
return document;
}
/**
* errors in positioning of form start or end tags generally require human intervention to fix.
*/
static void badForm(Lexer lexer)
{
lexer.badForm = 1;
lexer.errors++;
}
}</code></pre> <br/>
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