32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
import * as DomUtil from '../common/dom_util.js';
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import { SemanticRole, SemanticType } from '../semantic_tree/semantic_meaning.js';
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import { AbstractEnrichCase } from './abstract_enrich_case.js';
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import { walkTree } from './enrich_mathml.js';
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import { addMrow, setAttributes, Attribute } from './enrich_attr.js';
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export class CaseBinomial extends AbstractEnrichCase {
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static test(semantic) {
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return (!semantic.mathmlTree &&
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semantic.type === SemanticType.LINE &&
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semantic.role === SemanticRole.BINOMIAL);
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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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if (!this.semantic.childNodes.length) {
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return this.mml;
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}
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const child = this.semantic.childNodes[0];
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this.mml = walkTree(child);
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if (this.mml.hasAttribute(Attribute.TYPE)) {
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const mrow = addMrow();
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DomUtil.replaceNode(this.mml, mrow);
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mrow.appendChild(this.mml);
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this.mml = mrow;
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}
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setAttributes(this.mml, this.semantic);
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return this.mml;
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}
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}
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