typesxml
Version:
Open source XML library written in TypeScript
37 lines • 1.43 kB
JavaScript
/*******************************************************************************
* Copyright (c) 2023-2026 Maxprograms.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-v10.html
*
* Contributors:
* Maxprograms - initial API and implementation
*******************************************************************************/
import { SchemaParticle } from './SchemaParticle.js';
export class SchemaSequence extends SchemaParticle {
particles;
constructor(particles, minOccurs = 1, maxOccurs = 1) {
super(minOccurs, maxOccurs);
this.particles = particles;
}
matchOnce(children, pos, nsMap, childNamespaces) {
let positions = new Set([pos]);
for (const particle of this.particles) {
const nextPositions = new Set();
for (const p of positions) {
const matched = particle.matchRepeated(children, p, nsMap, childNamespaces);
for (const m of matched) {
nextPositions.add(m);
}
}
positions = nextPositions;
if (positions.size === 0) {
break;
}
}
return Array.from(positions);
}
}
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