@openxmldev/linq-to-xml/src/transformations/attributes.js

LINQ to XML for TypeScript

/**
 * @author Thomas Barnekow
 * @license MIT
 */
import { getAttributes, XAttribute } from '../internal.js';
/**
 * Returns a function that, for the elements of the source sequence passed to
 * that function, returns the concatenated sequences of attributes of such
 * elements.
 *
 * If a name is provided, the resulting sequence contains only those attributes
 * having a matching name.
 *
 * @param name The optional name used to filter the sequence of attributes.
 * @returns A function that will return a flat sequence of attributes.
 */
export function attributes(name) {
    return function (source) {
        return name !== null
            ? getManyAttributes(source, name !== null && name !== void 0 ? name : null)
            : XAttribute.emptySequence;
    };
}
function* getManyAttributes(source, name) {
    for (const element of source) {
        for (const attribute of getAttributes(element, name)) {
            yield attribute;
        }
    }
}
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