41 lines
1.8 KiB
JavaScript
41 lines
1.8 KiB
JavaScript
import * as DomUtil from '../common/dom_util.js';
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import { SemanticRole } from '../semantic_tree/semantic_meaning.js';
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import { MMLTAGS } from '../semantic_tree/semantic_util.js';
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import { AbstractEnrichCase } from './abstract_enrich_case.js';
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import * as EnrichMathml from './enrich_mathml.js';
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import { makeIdList, setAttributes, Attribute } from './enrich_attr.js';
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export class CaseDoubleScript extends AbstractEnrichCase {
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static test(semantic) {
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if (!semantic.mathmlTree || !semantic.childNodes.length) {
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return false;
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}
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const mmlTag = DomUtil.tagName(semantic.mathmlTree);
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const role = semantic.childNodes[0].role;
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return ((mmlTag === MMLTAGS.MSUBSUP && role === SemanticRole.SUBSUP) ||
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(mmlTag === MMLTAGS.MUNDEROVER && role === SemanticRole.UNDEROVER));
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}
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constructor(semantic) {
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super(semantic);
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this.mml = semantic.mathmlTree;
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}
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getMathml() {
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const ignore = this.semantic.childNodes[0];
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const baseSem = ignore.childNodes[0];
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const supSem = this.semantic.childNodes[1];
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const subSem = ignore.childNodes[1];
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const supMml = EnrichMathml.walkTree(supSem);
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const baseMml = EnrichMathml.walkTree(baseSem);
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const subMml = EnrichMathml.walkTree(subSem);
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setAttributes(this.mml, this.semantic);
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this.mml.setAttribute(Attribute.CHILDREN, makeIdList([baseSem, subSem, supSem]));
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[baseMml, subMml, supMml].forEach((child) => EnrichMathml.getInnerNode(child).setAttribute(Attribute.PARENT, this.mml.getAttribute(Attribute.ID)));
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this.mml.setAttribute(Attribute.TYPE, ignore.role);
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EnrichMathml.addCollapsedAttribute(this.mml, [
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this.semantic.id,
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[ignore.id, baseSem.id, subSem.id],
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supSem.id
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]);
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return this.mml;
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}
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}
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