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Styled XML parser is used by iText modules to parse HTML and XML
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see stack;
Element el;
switch (name) {
case "a":
if (tb.getActiveFormattingElement("a") != null) {
tb.error(this);
tb.processEndTag("a");
// still on stack?
Element remainingA = tb.getFromStack("a");
if (remainingA != null) {
tb.removeFromActiveFormattingElements(remainingA);
tb.removeFromStack(remainingA);
}
}
tb.reconstructFormattingElements();
el = tb.insert(startTag);
tb.pushActiveFormattingElements(el);
break;
case "span":
// same as final else, but short circuits lots of checks
tb.reconstructFormattingElements();
tb.insert(startTag);
break;
case "li":
tb.framesetOk(false);
stack = tb.getStack();
for (int i = stack.size() - 1; i > 0; i--) {
el = stack.get(i);
if (el.normalName().equals("li")) {
tb.processEndTag("li");
break;
}
if (tb.isSpecial(el) && !StringUtil.inSorted(el.normalName(), Constants.InBodyStartLiBreakers))
break;
}
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
break;
case "html":
tb.error(this);
// merge attributes onto real html
Element html = tb.getStack().get(0);
if (startTag.hasAttributes()) {
for (Attribute attribute : startTag.attributes) {
if (!html.hasAttr(attribute.getKey()))
html.attributes().put(attribute);
}
}
break;
case "body":
tb.error(this);
stack = tb.getStack();
if (stack.size() == 1 || (stack.size() > 2 && !stack.get(1).normalName().equals("body"))) {
// only in fragment case
return false; // ignore
} else {
tb.framesetOk(false);
Element body = stack.get(1);
if (startTag.hasAttributes()) {
for (Attribute attribute : startTag.attributes) {
if (!body.hasAttr(attribute.getKey()))
body.attributes().put(attribute);
}
}
}
break;
case "frameset":
tb.error(this);
stack = tb.getStack();
if (stack.size() == 1 || (stack.size() > 2 && !stack.get(1).normalName().equals("body"))) {
// only in fragment case
return false; // ignore
} else if (!tb.framesetOk()) {
return false; // ignore frameset
} else {
Element second = stack.get(1);
if (second.parent() != null)
second.remove();
// pop up to html element
while (stack.size() > 1)
stack.remove(stack.size() - 1);
tb.insert(startTag);
tb.transition(InFrameset);
}
break;
case "form":
if (tb.getFormElement() != null) {
tb.error(this);
return false;
}
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insertForm(startTag, true);
break;
case "plaintext":
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
tb.tokeniser.transition(TokeniserState.PLAINTEXT); // once in, never gets out
break;
case "button":
if (tb.inButtonScope("button")) {
// close and reprocess
tb.error(this);
tb.processEndTag("button");
tb.process(startTag);
} else {
tb.reconstructFormattingElements();
tb.insert(startTag);
tb.framesetOk(false);
}
break;
case "nobr":
tb.reconstructFormattingElements();
if (tb.inScope("nobr")) {
tb.error(this);
tb.processEndTag("nobr");
tb.reconstructFormattingElements();
}
el = tb.insert(startTag);
tb.pushActiveFormattingElements(el);
break;
case "table":
if (tb.getDocument().quirksMode() != Document.QuirksMode.quirks && tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
tb.framesetOk(false);
tb.transition(InTable);
break;
case "input":
tb.reconstructFormattingElements();
el = tb.insertEmpty(startTag);
if (!el.attr("type").equalsIgnoreCase("hidden"))
tb.framesetOk(false);
break;
case "hr":
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insertEmpty(startTag);
tb.framesetOk(false);
break;
case "image":
if (tb.getFromStack("svg") == null)
return tb.process(startTag.name("img")); // change to ![]()
, unless in svg
else
tb.insert(startTag);
break;
case "isindex":
// how much do we care about the early 90s?
tb.error(this);
if (tb.getFormElement() != null)
return false;
tb.processStartTag("form");
if (startTag.hasAttribute("action")) {
Element form = tb.getFormElement();
form.attr("action", startTag.attributes.get("action"));
}
tb.processStartTag("hr");
tb.processStartTag("label");
// hope you like english.
String prompt = startTag.hasAttribute("prompt") ?
startTag.attributes.get("prompt") :
"This is a searchable index. Enter search keywords: ";
tb.process(new Token.Character().data(prompt));
// input
Attributes inputAttribs = new Attributes();
if (startTag.hasAttributes()) {
for (Attribute attr : startTag.attributes) {
if (!StringUtil.inSorted(attr.getKey(), Constants.InBodyStartInputAttribs))
inputAttribs.put(attr);
}
}
inputAttribs.put("name", "isindex");
tb.processStartTag("input", inputAttribs);
tb.processEndTag("label");
tb.processStartTag("hr");
tb.processEndTag("form");
break;
case "textarea":
tb.insert(startTag);
if (!startTag.isSelfClosing()) {
tb.tokeniser.transition(TokeniserState.Rcdata);
tb.markInsertionMode();
tb.framesetOk(false);
tb.transition(Text);
}
break;
case "xmp":
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.reconstructFormattingElements();
tb.framesetOk(false);
handleRawtext(startTag, tb);
break;
case "iframe":
tb.framesetOk(false);
handleRawtext(startTag, tb);
break;
case "noembed":
// also handle noscript if script enabled
handleRawtext(startTag, tb);
break;
case "select":
tb.reconstructFormattingElements();
tb.insert(startTag);
tb.framesetOk(false);
HtmlTreeBuilderState state = tb.state();
if (state.equals(InTable) || state.equals(InCaption) || state.equals(InTableBody) || state.equals(InRow) || state.equals(InCell))
tb.transition(InSelectInTable);
else
tb.transition(InSelect);
break;
case "math":
tb.reconstructFormattingElements();
tb.insert(startTag);
break;
case "svg":
tb.reconstructFormattingElements();
tb.insert(startTag);
break;
// static final String[] Headings = new String[]{"h1", "h2", "h3", "h4", "h5", "h6"};
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
if (StringUtil.inSorted(tb.currentElement().normalName(), Constants.Headings)) {
tb.error(this);
tb.pop();
}
tb.insert(startTag);
break;
// static final String[] InBodyStartPreListing = new String[]{"listing", "pre"};
case "pre":
case "listing":
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
tb.reader.matchConsume("\n"); // ignore LF if next token
tb.framesetOk(false);
break;
// static final String[] DdDt = new String[]{"dd", "dt"};
case "dd":
case "dt":
tb.framesetOk(false);
stack = tb.getStack();
for (int i = stack.size() - 1; i > 0; i--) {
el = stack.get(i);
if (StringUtil.inSorted(el.normalName(), Constants.DdDt)) {
tb.processEndTag(el.normalName());
break;
}
if (tb.isSpecial(el) && !StringUtil.inSorted(el.normalName(), Constants.InBodyStartLiBreakers))
break;
}
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
break;
// static final String[] InBodyStartOptions = new String[]{"optgroup", "option"};
case "optgroup":
case "option":
if (tb.currentElement().normalName().equals("option"))
tb.processEndTag("option");
tb.reconstructFormattingElements();
tb.insert(startTag);
break;
// static final String[] InBodyStartRuby = new String[]{"rp", "rt"};
case "rp":
case "rt":
if (tb.inScope("ruby")) {
tb.generateImpliedEndTags();
if (!tb.currentElement().normalName().equals("ruby")) {
tb.error(this);
tb.popStackToBefore("ruby"); // i.e. close up to but not include name
}
tb.insert(startTag);
}
break;
default:
if (StringUtil.inSorted(name, Constants.InBodyStartEmptyFormatters)) {
tb.reconstructFormattingElements();
tb.insertEmpty(startTag);
tb.framesetOk(false);
} else if (StringUtil.inSorted(name, Constants.InBodyStartPClosers)) {
if (tb.inButtonScope("p")) {
tb.processEndTag("p");
}
tb.insert(startTag);
} else if (StringUtil.inSorted(name, Constants.InBodyStartToHead)) {
return tb.process(t, InHead);
} else if (StringUtil.inSorted(name, Constants.Formatters)) {
tb.reconstructFormattingElements();
el = tb.insert(startTag);
tb.pushActiveFormattingElements(el);
} else if (StringUtil.inSorted(name, Constants.InBodyStartApplets)) {
tb.reconstructFormattingElements();
tb.insert(startTag);
tb.insertMarkerToFormattingElements();
tb.framesetOk(false);
} else if (StringUtil.inSorted(name, Constants.InBodyStartMedia)) {
tb.insertEmpty(startTag);
} else if (StringUtil.inSorted(name, Constants.InBodyStartDrop)) {
tb.error(this);
return false;
} else {
tb.reconstructFormattingElements();
tb.insert(startTag);
}
}
return true;
}
private boolean inBodyEndTag(Token t, HtmlTreeBuilder tb) {
final Token.EndTag endTag = t.asEndTag();
final String name = endTag.normalName();
switch (name) {
case "sarcasm": // *sigh*
case "span":
// same as final fall through, but saves short circuit
return anyOtherEndTag(t, tb);
case "li":
if (!tb.inListItemScope(name)) {
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags(name);
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(name);
}
break;
case "body":
if (!tb.inScope("body")) {
tb.error(this);
return false;
} else {
tb.transition(AfterBody);
}
break;
case "html":
boolean notIgnored = tb.processEndTag("body");
if (notIgnored)
return tb.process(endTag);
break;
case "form":
Element currentForm = tb.getFormElement();
tb.setFormElement(null);
if (currentForm == null || !tb.inScope(name)) {
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags();
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
// remove currentForm from stack. will shift anything under up.
tb.removeFromStack(currentForm);
}
break;
case "p":
if (!tb.inButtonScope(name)) {
tb.error(this);
tb.processStartTag(name); // if no p to close, creates an empty
return tb.process(endTag);
} else {
tb.generateImpliedEndTags(name);
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(name);
}
break;
case "dd":
case "dt":
if (!tb.inScope(name)) {
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags(name);
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(name);
}
break;
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
if (!tb.inScope(Constants.Headings)) {
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags(name);
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(Constants.Headings);
}
break;
case "br":
tb.error(this);
tb.processStartTag("br");
return false;
default:
if (StringUtil.inSorted(name, Constants.InBodyEndAdoptionFormatters)) {
return inBodyEndTagAdoption(t, tb);
} else if (StringUtil.inSorted(name, Constants.InBodyEndClosers)) {
if (!tb.inScope(name)) {
// nothing to close
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags();
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(name);
}
} else if (StringUtil.inSorted(name, Constants.InBodyStartApplets)) {
if (!tb.inScope("name")) {
if (!tb.inScope(name)) {
tb.error(this);
return false;
}
tb.generateImpliedEndTags();
if (!tb.currentElement().normalName().equals(name))
tb.error(this);
tb.popStackToClose(name);
tb.clearFormattingElementsToLastMarker();
}
} else {
return anyOtherEndTag(t, tb);
}
}
return true;
}
boolean anyOtherEndTag(Token t, HtmlTreeBuilder tb) {
final String name = t.asEndTag().normalName; // case insensitive search - goal is to preserve output case, not for the parse to be case sensitive
final ArrayList stack = tb.getStack();
for (int pos = stack.size() - 1; pos >= 0; pos--) {
Element node = stack.get(pos);
if (node.normalName().equals(name)) {
tb.generateImpliedEndTags(name);
if (!name.equals(tb.currentElement().normalName()))
tb.error(this);
tb.popStackToClose(name);
break;
} else {
if (tb.isSpecial(node)) {
tb.error(this);
return false;
}
}
}
return true;
}
// Adoption Agency Algorithm.
private boolean inBodyEndTagAdoption(Token t, HtmlTreeBuilder tb) {
final Token.EndTag endTag = t.asEndTag();
final String name = endTag.normalName();
final ArrayList stack = tb.getStack();
Element el;
for (int i = 0; i < 8; i++) {
Element formatEl = tb.getActiveFormattingElement(name);
if (formatEl == null)
return anyOtherEndTag(t, tb);
else if (!tb.onStack(formatEl)) {
tb.error(this);
tb.removeFromActiveFormattingElements(formatEl);
return true;
} else if (!tb.inScope(formatEl.normalName())) {
tb.error(this);
return false;
} else if (tb.currentElement() != formatEl)
tb.error(this);
Element furthestBlock = null;
Element commonAncestor = null;
boolean seenFormattingElement = false;
// the spec doesn't limit to < 64, but in degenerate cases (9000+ stack depth) this prevents
// run-aways
final int stackSize = stack.size();
int bookmark = -1;
for (int si = 0; si < stackSize && si < 64; si++) {
el = stack.get(si);
if (el == formatEl) {
commonAncestor = stack.get(si - 1);
seenFormattingElement = true;
// Let a bookmark note the position of the formatting element in the list of active formatting elements relative to the elements on either side of it in the list.
bookmark = tb.positionOfElement(el);
} else if (seenFormattingElement && tb.isSpecial(el)) {
furthestBlock = el;
break;
}
}
if (furthestBlock == null) {
tb.popStackToClose(formatEl.normalName());
tb.removeFromActiveFormattingElements(formatEl);
return true;
}
Element node = furthestBlock;
Element lastNode = furthestBlock;
for (int j = 0; j < 3; j++) {
if (tb.onStack(node))
node = tb.aboveOnStack(node);
if (!tb.isInActiveFormattingElements(node)) { // note no bookmark check
tb.removeFromStack(node);
continue;
} else if (node == formatEl)
break;
Element replacement = new Element(Tag.valueOf(node.nodeName(), ParseSettings.preserveCase), tb.getBaseUri());
// case will follow the original node (so honours ParseSettings)
tb.replaceActiveFormattingElement(node, replacement);
tb.replaceOnStack(node, replacement);
node = replacement;
if (lastNode == furthestBlock) {
// move the aforementioned bookmark to be immediately after the new node in the list of active formatting elements.
// not getting how this bookmark both straddles the element above, but is inbetween here...
bookmark = tb.positionOfElement(node) + 1;
}
if (lastNode.parent() != null)
lastNode.remove();
node.appendChild(lastNode);
lastNode = node;
}
if (commonAncestor != null) { // safety check, but would be an error if null
if (StringUtil.inSorted(commonAncestor.normalName(), Constants.InBodyEndTableFosters)) {
if (lastNode.parent() != null)
lastNode.remove();
tb.insertInFosterParent(lastNode);
} else {
if (lastNode.parent() != null)
lastNode.remove();
commonAncestor.appendChild(lastNode);
}
}
Element adopter = new Element(formatEl.tag(), tb.getBaseUri());
adopter.attributes().addAll(formatEl.attributes());
Node[] childNodes = furthestBlock.childNodes().toArray(new Node[0]);
for (Node childNode : childNodes) {
adopter.appendChild(childNode); // append will reparent. thus the clone to avoid concurrent mod.
}
furthestBlock.appendChild(adopter);
tb.removeFromActiveFormattingElements(formatEl);
// insert the new element into the list of active formatting elements at the position of the aforementioned bookmark.
tb.pushWithBookmark(adopter, bookmark);
tb.removeFromStack(formatEl);
tb.insertOnStackAfter(furthestBlock, adopter);
}
return true;
}
}
private static final class TextBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "Text";
}
// in script, style etc. normally treated as data tags
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.isCharacter()) {
tb.insert(t.asCharacter());
} else if (t.isEOF()) {
tb.error(this);
// if current node is script: already started
tb.pop();
tb.transition(tb.originalState());
return tb.process(t);
} else if (t.isEndTag()) {
// if: An end tag whose tag name is "script" -- scripting nesting level, if evaluating scripts
tb.pop();
tb.transition(tb.originalState());
}
return true;
}
}
private static final class InTableBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InTable";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.isCharacter()) {
tb.newPendingTableCharacters();
tb.markInsertionMode();
tb.transition(InTableText);
return tb.process(t);
} else if (t.isComment()) {
tb.insert(t.asComment());
return true;
} else if (t.isDoctype()) {
tb.error(this);
return false;
} else if (t.isStartTag()) {
Token.StartTag startTag = t.asStartTag();
String name = startTag.normalName();
if (name.equals("caption")) {
tb.clearStackToTableContext();
tb.insertMarkerToFormattingElements();
tb.insert(startTag);
tb.transition(InCaption);
} else if (name.equals("colgroup")) {
tb.clearStackToTableContext();
tb.insert(startTag);
tb.transition(InColumnGroup);
} else if (name.equals("col")) {
tb.processStartTag("colgroup");
return tb.process(t);
} else if (StringUtil.inSorted(name, Constants.InTableToBody)) {
tb.clearStackToTableContext();
tb.insert(startTag);
tb.transition(InTableBody);
} else if (StringUtil.inSorted(name, Constants.InTableAddBody)) {
tb.processStartTag("tbody");
return tb.process(t);
} else if (name.equals("table")) {
tb.error(this);
boolean processed = tb.processEndTag("table");
if (processed) // only ignored if in fragment
return tb.process(t);
} else if (StringUtil.inSorted(name, Constants.InTableToHead)) {
return tb.process(t, InHead);
} else if (name.equals("input")) {
if (!(startTag.hasAttributes() && startTag.attributes.get("type").equalsIgnoreCase("hidden"))) {
return anythingElse(t, tb);
} else {
tb.insertEmpty(startTag);
}
} else if (name.equals("form")) {
tb.error(this);
if (tb.getFormElement() != null)
return false;
else {
tb.insertForm(startTag, false);
}
} else {
return anythingElse(t, tb);
}
return true;
} else if (t.isEndTag()) {
Token.EndTag endTag = t.asEndTag();
String name = endTag.normalName();
if (name.equals("table")) {
if (!tb.inTableScope(name)) {
tb.error(this);
return false;
} else {
tb.popStackToClose("table");
}
tb.resetInsertionMode();
} else if (StringUtil.inSorted(name, Constants.InTableEndErr)) {
tb.error(this);
return false;
} else {
return anythingElse(t, tb);
}
return true;
} else if (t.isEOF()) {
if (tb.currentElement().normalName().equals("html"))
tb.error(this);
return true; // stops parsing
}
return anythingElse(t, tb);
}
boolean anythingElse(Token t, HtmlTreeBuilder tb) {
tb.error(this);
boolean processed;
if (StringUtil.inSorted(tb.currentElement().normalName(), Constants.InTableFoster)) {
tb.setFosterInserts(true);
processed = tb.process(t, InBody);
tb.setFosterInserts(false);
} else {
processed = tb.process(t, InBody);
}
return processed;
}
}
private static final class InTableTextBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InTableText";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.type == Token.TokenType.Character) {
Token.Character c = t.asCharacter();
if (c.getData().equals(nullString)) {
tb.error(this);
return false;
} else {
tb.getPendingTableCharacters().add(c.getData());
}
} else {
if (tb.getPendingTableCharacters().size() > 0) {
for (String character : tb.getPendingTableCharacters()) {
if (!isWhitespace(character)) {
// InTable anything else section:
tb.error(this);
if (StringUtil.inSorted(tb.currentElement().normalName(), Constants.InTableFoster)) {
tb.setFosterInserts(true);
tb.process(new Token.Character().data(character), InBody);
tb.setFosterInserts(false);
} else {
tb.process(new Token.Character().data(character), InBody);
}
} else
tb.insert(new Token.Character().data(character));
}
tb.newPendingTableCharacters();
}
tb.transition(tb.originalState());
return tb.process(t);
}
return true;
}
}
private static final class InCaptionBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InCaption";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.isEndTag() && t.asEndTag().normalName().equals("caption")) {
Token.EndTag endTag = t.asEndTag();
String name = endTag.normalName();
if (!tb.inTableScope(name)) {
tb.error(this);
return false;
} else {
tb.generateImpliedEndTags();
if (!tb.currentElement().normalName().equals("caption"))
tb.error(this);
tb.popStackToClose("caption");
tb.clearFormattingElementsToLastMarker();
tb.transition(InTable);
}
} else if ((
t.isStartTag() && StringUtil.inSorted(t.asStartTag().normalName(), Constants.InCellCol) ||
t.isEndTag() && t.asEndTag().normalName().equals("table"))
) {
tb.error(this);
boolean processed = tb.processEndTag("caption");
if (processed)
return tb.process(t);
} else if (t.isEndTag() && StringUtil.inSorted(t.asEndTag().normalName(), Constants.InCaptionIgnore)) {
tb.error(this);
return false;
} else {
return tb.process(t, InBody);
}
return true;
}
}
private static final class InColumnGroupBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InColumnGroup";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (isWhitespace(t)) {
tb.insert(t.asCharacter());
return true;
}
switch (t.type) {
case Comment:
tb.insert(t.asComment());
break;
case Doctype:
tb.error(this);
break;
case StartTag:
Token.StartTag startTag = t.asStartTag();
switch (startTag.normalName()) {
case "html":
return tb.process(t, InBody);
case "col":
tb.insertEmpty(startTag);
break;
default:
return anythingElse(t, tb);
}
break;
case EndTag:
Token.EndTag endTag = t.asEndTag();
if (endTag.normalName.equals("colgroup")) {
if (tb.currentElement().normalName().equals("html")) { // frag case
tb.error(this);
return false;
} else {
tb.pop();
tb.transition(InTable);
}
} else
return anythingElse(t, tb);
break;
case EOF:
if (tb.currentElement().normalName().equals("html"))
return true; // stop parsing; frag case
else
return anythingElse(t, tb);
default:
return anythingElse(t, tb);
}
return true;
}
private boolean anythingElse(Token t, TreeBuilder tb) {
boolean processed = tb.processEndTag("colgroup");
if (processed) // only ignored in frag case
return tb.process(t);
return true;
}
}
private static final class InTableBodyBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InTableBody";
}
boolean process(Token t, HtmlTreeBuilder tb) {
String name;
switch (t.type) {
case StartTag:
Token.StartTag startTag = t.asStartTag();
name = startTag.normalName();
if (name.equals("template")) {
tb.insert(startTag);
} else if (name.equals("tr")) {
tb.clearStackToTableBodyContext();
tb.insert(startTag);
tb.transition(InRow);
} else if (StringUtil.inSorted(name, Constants.InCellNames)) {
tb.error(this);
tb.processStartTag("tr");
return tb.process(startTag);
} else if (StringUtil.inSorted(name, Constants.InTableBodyExit)) {
return exitTableBody(t, tb);
} else
return anythingElse(t, tb);
break;
case EndTag:
Token.EndTag endTag = t.asEndTag();
name = endTag.normalName();
if (StringUtil.inSorted(name, Constants.InTableEndIgnore)) {
if (!tb.inTableScope(name)) {
tb.error(this);
return false;
} else {
tb.clearStackToTableBodyContext();
tb.pop();
tb.transition(InTable);
}
} else if (name.equals("table")) {
return exitTableBody(t, tb);
} else if (StringUtil.inSorted(name, Constants.InTableBodyEndIgnore)) {
tb.error(this);
return false;
} else
return anythingElse(t, tb);
break;
default:
return anythingElse(t, tb);
}
return true;
}
private boolean exitTableBody(Token t, HtmlTreeBuilder tb) {
if (!(tb.inTableScope("tbody") || tb.inTableScope("thead") || tb.inScope("tfoot"))) {
// frag case
tb.error(this);
return false;
}
tb.clearStackToTableBodyContext();
tb.processEndTag(tb.currentElement().normalName()); // tbody, tfoot, thead
return tb.process(t);
}
private boolean anythingElse(Token t, HtmlTreeBuilder tb) {
return tb.process(t, InTable);
}
}
private static final class InRowBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InRow";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.isStartTag()) {
Token.StartTag startTag = t.asStartTag();
String name = startTag.normalName();
if (name.equals("template")) {
tb.insert(startTag);
} else if (StringUtil.inSorted(name, Constants.InCellNames)) {
tb.clearStackToTableRowContext();
tb.insert(startTag);
tb.transition(InCell);
tb.insertMarkerToFormattingElements();
} else if (StringUtil.inSorted(name, Constants.InRowMissing)) {
return handleMissingTr(t, tb);
} else {
return anythingElse(t, tb);
}
} else if (t.isEndTag()) {
Token.EndTag endTag = t.asEndTag();
String name = endTag.normalName();
if (name.equals("tr")) {
if (!tb.inTableScope(name)) {
tb.error(this); // frag
return false;
}
tb.clearStackToTableRowContext();
tb.pop(); // tr
tb.transition(InTableBody);
} else if (name.equals("table")) {
return handleMissingTr(t, tb);
} else if (StringUtil.inSorted(name, Constants.InTableToBody)) {
if (!tb.inTableScope(name) || !tb.inTableScope("tr")) {
tb.error(this);
return false;
}
tb.clearStackToTableRowContext();
tb.pop(); // tr
tb.transition(InTableBody);
} else if (StringUtil.inSorted(name, Constants.InRowIgnore)) {
tb.error(this);
return false;
} else {
return anythingElse(t, tb);
}
} else {
return anythingElse(t, tb);
}
return true;
}
private boolean anythingElse(Token t, HtmlTreeBuilder tb) {
return tb.process(t, InTable);
}
private boolean handleMissingTr(Token t, TreeBuilder tb) {
boolean processed = tb.processEndTag("tr");
if (processed)
return tb.process(t);
else
return false;
}
}
private static final class InCellBS extends HtmlTreeBuilderState {
@Override
public String toString() {
return "InCell";
}
boolean process(Token t, HtmlTreeBuilder tb) {
if (t.isEndTag()) {
Token.EndTag endTag = t.asEndTag();
String name = endTag.normalName();
if (StringUtil.inSorted(name, Constants.InCellNames)) {
if (!tb.inTableScope(name)) {
tb.error(this);
tb.transition(InRow); // might not be in scope if empty: