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update packages to latest version
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312
node_modules/parse5/dist/parser/open-element-stack.js
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312
node_modules/parse5/dist/parser/open-element-stack.js
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import { TAG_ID as $, NS, isNumberedHeader } from '../common/html.js';
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//Element utils
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const IMPLICIT_END_TAG_REQUIRED = new Set([$.DD, $.DT, $.LI, $.OPTGROUP, $.OPTION, $.P, $.RB, $.RP, $.RT, $.RTC]);
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const IMPLICIT_END_TAG_REQUIRED_THOROUGHLY = new Set([
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...IMPLICIT_END_TAG_REQUIRED,
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$.CAPTION,
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$.COLGROUP,
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$.TBODY,
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$.TD,
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$.TFOOT,
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$.TH,
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$.THEAD,
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$.TR,
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]);
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const SCOPING_ELEMENT_NS = new Map([
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[$.APPLET, NS.HTML],
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[$.CAPTION, NS.HTML],
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[$.HTML, NS.HTML],
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[$.MARQUEE, NS.HTML],
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[$.OBJECT, NS.HTML],
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[$.TABLE, NS.HTML],
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[$.TD, NS.HTML],
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[$.TEMPLATE, NS.HTML],
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[$.TH, NS.HTML],
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[$.ANNOTATION_XML, NS.MATHML],
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[$.MI, NS.MATHML],
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[$.MN, NS.MATHML],
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[$.MO, NS.MATHML],
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[$.MS, NS.MATHML],
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[$.MTEXT, NS.MATHML],
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[$.DESC, NS.SVG],
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[$.FOREIGN_OBJECT, NS.SVG],
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[$.TITLE, NS.SVG],
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]);
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const NAMED_HEADERS = [$.H1, $.H2, $.H3, $.H4, $.H5, $.H6];
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const TABLE_ROW_CONTEXT = [$.TR, $.TEMPLATE, $.HTML];
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const TABLE_BODY_CONTEXT = [$.TBODY, $.TFOOT, $.THEAD, $.TEMPLATE, $.HTML];
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const TABLE_CONTEXT = [$.TABLE, $.TEMPLATE, $.HTML];
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const TABLE_CELLS = [$.TD, $.TH];
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//Stack of open elements
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export class OpenElementStack {
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constructor(document, treeAdapter, handler) {
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this.treeAdapter = treeAdapter;
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this.handler = handler;
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this.items = [];
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this.tagIDs = [];
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this.stackTop = -1;
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this.tmplCount = 0;
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this.currentTagId = $.UNKNOWN;
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this.current = document;
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}
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get currentTmplContentOrNode() {
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return this._isInTemplate() ? this.treeAdapter.getTemplateContent(this.current) : this.current;
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}
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//Index of element
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_indexOf(element) {
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return this.items.lastIndexOf(element, this.stackTop);
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}
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//Update current element
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_isInTemplate() {
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return this.currentTagId === $.TEMPLATE && this.treeAdapter.getNamespaceURI(this.current) === NS.HTML;
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}
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_updateCurrentElement() {
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this.current = this.items[this.stackTop];
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this.currentTagId = this.tagIDs[this.stackTop];
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}
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//Mutations
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push(element, tagID) {
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this.stackTop++;
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this.items[this.stackTop] = element;
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this.current = element;
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this.tagIDs[this.stackTop] = tagID;
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this.currentTagId = tagID;
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if (this._isInTemplate()) {
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this.tmplCount++;
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}
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this.handler.onItemPush(element, tagID, true);
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}
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pop() {
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const popped = this.current;
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if (this.tmplCount > 0 && this._isInTemplate()) {
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this.tmplCount--;
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}
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this.stackTop--;
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this._updateCurrentElement();
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this.handler.onItemPop(popped, true);
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}
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replace(oldElement, newElement) {
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const idx = this._indexOf(oldElement);
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this.items[idx] = newElement;
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if (idx === this.stackTop) {
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this.current = newElement;
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}
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}
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insertAfter(referenceElement, newElement, newElementID) {
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const insertionIdx = this._indexOf(referenceElement) + 1;
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this.items.splice(insertionIdx, 0, newElement);
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this.tagIDs.splice(insertionIdx, 0, newElementID);
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this.stackTop++;
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if (insertionIdx === this.stackTop) {
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this._updateCurrentElement();
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}
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this.handler.onItemPush(this.current, this.currentTagId, insertionIdx === this.stackTop);
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}
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popUntilTagNamePopped(tagName) {
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let targetIdx = this.stackTop + 1;
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do {
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targetIdx = this.tagIDs.lastIndexOf(tagName, targetIdx - 1);
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} while (targetIdx > 0 && this.treeAdapter.getNamespaceURI(this.items[targetIdx]) !== NS.HTML);
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this.shortenToLength(targetIdx < 0 ? 0 : targetIdx);
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}
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shortenToLength(idx) {
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while (this.stackTop >= idx) {
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const popped = this.current;
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if (this.tmplCount > 0 && this._isInTemplate()) {
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this.tmplCount -= 1;
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}
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this.stackTop--;
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this._updateCurrentElement();
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this.handler.onItemPop(popped, this.stackTop < idx);
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}
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}
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popUntilElementPopped(element) {
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const idx = this._indexOf(element);
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this.shortenToLength(idx < 0 ? 0 : idx);
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}
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popUntilPopped(tagNames, targetNS) {
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const idx = this._indexOfTagNames(tagNames, targetNS);
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this.shortenToLength(idx < 0 ? 0 : idx);
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}
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popUntilNumberedHeaderPopped() {
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this.popUntilPopped(NAMED_HEADERS, NS.HTML);
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}
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popUntilTableCellPopped() {
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this.popUntilPopped(TABLE_CELLS, NS.HTML);
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}
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popAllUpToHtmlElement() {
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//NOTE: here we assume that the root <html> element is always first in the open element stack, so
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//we perform this fast stack clean up.
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this.tmplCount = 0;
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this.shortenToLength(1);
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}
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_indexOfTagNames(tagNames, namespace) {
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for (let i = this.stackTop; i >= 0; i--) {
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if (tagNames.includes(this.tagIDs[i]) && this.treeAdapter.getNamespaceURI(this.items[i]) === namespace) {
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return i;
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}
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}
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return -1;
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}
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clearBackTo(tagNames, targetNS) {
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const idx = this._indexOfTagNames(tagNames, targetNS);
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this.shortenToLength(idx + 1);
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}
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clearBackToTableContext() {
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this.clearBackTo(TABLE_CONTEXT, NS.HTML);
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}
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clearBackToTableBodyContext() {
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this.clearBackTo(TABLE_BODY_CONTEXT, NS.HTML);
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}
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clearBackToTableRowContext() {
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this.clearBackTo(TABLE_ROW_CONTEXT, NS.HTML);
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}
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remove(element) {
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const idx = this._indexOf(element);
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if (idx >= 0) {
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if (idx === this.stackTop) {
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this.pop();
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}
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else {
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this.items.splice(idx, 1);
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this.tagIDs.splice(idx, 1);
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this.stackTop--;
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this._updateCurrentElement();
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this.handler.onItemPop(element, false);
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}
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}
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}
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//Search
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tryPeekProperlyNestedBodyElement() {
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//Properly nested <body> element (should be second element in stack).
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return this.stackTop >= 1 && this.tagIDs[1] === $.BODY ? this.items[1] : null;
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}
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contains(element) {
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return this._indexOf(element) > -1;
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}
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getCommonAncestor(element) {
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const elementIdx = this._indexOf(element) - 1;
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return elementIdx >= 0 ? this.items[elementIdx] : null;
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}
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isRootHtmlElementCurrent() {
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return this.stackTop === 0 && this.tagIDs[0] === $.HTML;
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}
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//Element in scope
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hasInScope(tagName) {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (tn === tagName && ns === NS.HTML) {
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return true;
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}
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if (SCOPING_ELEMENT_NS.get(tn) === ns) {
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return false;
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}
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}
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return true;
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}
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hasNumberedHeaderInScope() {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (isNumberedHeader(tn) && ns === NS.HTML) {
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return true;
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}
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if (SCOPING_ELEMENT_NS.get(tn) === ns) {
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return false;
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}
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}
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return true;
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}
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hasInListItemScope(tagName) {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (tn === tagName && ns === NS.HTML) {
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return true;
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}
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if (((tn === $.UL || tn === $.OL) && ns === NS.HTML) || SCOPING_ELEMENT_NS.get(tn) === ns) {
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return false;
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}
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}
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return true;
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}
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hasInButtonScope(tagName) {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (tn === tagName && ns === NS.HTML) {
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return true;
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}
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if ((tn === $.BUTTON && ns === NS.HTML) || SCOPING_ELEMENT_NS.get(tn) === ns) {
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return false;
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}
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}
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return true;
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}
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hasInTableScope(tagName) {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (ns !== NS.HTML) {
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continue;
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}
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if (tn === tagName) {
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return true;
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}
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if (tn === $.TABLE || tn === $.TEMPLATE || tn === $.HTML) {
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return false;
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}
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}
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return true;
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}
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hasTableBodyContextInTableScope() {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (ns !== NS.HTML) {
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continue;
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}
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if (tn === $.TBODY || tn === $.THEAD || tn === $.TFOOT) {
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return true;
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}
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if (tn === $.TABLE || tn === $.HTML) {
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return false;
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}
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}
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return true;
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}
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hasInSelectScope(tagName) {
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for (let i = this.stackTop; i >= 0; i--) {
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const tn = this.tagIDs[i];
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const ns = this.treeAdapter.getNamespaceURI(this.items[i]);
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if (ns !== NS.HTML) {
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continue;
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}
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if (tn === tagName) {
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return true;
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}
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if (tn !== $.OPTION && tn !== $.OPTGROUP) {
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return false;
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}
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}
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return true;
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}
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//Implied end tags
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generateImpliedEndTags() {
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while (IMPLICIT_END_TAG_REQUIRED.has(this.currentTagId)) {
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this.pop();
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}
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}
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generateImpliedEndTagsThoroughly() {
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while (IMPLICIT_END_TAG_REQUIRED_THOROUGHLY.has(this.currentTagId)) {
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this.pop();
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}
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}
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generateImpliedEndTagsWithExclusion(exclusionId) {
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while (this.currentTagId !== exclusionId && IMPLICIT_END_TAG_REQUIRED_THOROUGHLY.has(this.currentTagId)) {
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this.pop();
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}
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}
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}
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//# sourceMappingURL=open-element-stack.js.map
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