43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
import { Node } from "prosemirror-model";
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import parseDocumentSlug from "@shared/utils/parseDocumentSlug";
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import { parser } from "@server/editor";
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/**
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* Parse a list of unique document identifiers contained in links in markdown
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* text.
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*
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* @param text The text to parse in Markdown format
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* @returns An array of document identifiers
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*/
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export default function parseDocumentIds(text: string): string[] {
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const value = parser.parse(text);
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const identifiers: string[] = [];
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function findLinks(node: Node) {
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// get text nodes
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if (node.type.name === "text") {
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// get marks for text nodes
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node.marks.forEach((mark) => {
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// any of the marks identifiers?
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if (mark.type.name === "link") {
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const slug = parseDocumentSlug(mark.attrs.href);
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// don't return the same link more than once
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if (slug && !identifiers.includes(slug)) {
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identifiers.push(slug);
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}
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}
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});
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}
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if (!node.content.size) {
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return;
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}
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node.content.descendants(findLinks);
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}
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findLinks(value);
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return identifiers;
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}
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