63 lines
1.5 KiB
TypeScript
63 lines
1.5 KiB
TypeScript
import {
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findNodeOfType,
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renderToText,
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replaceNodesMatching,
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} from "@silverbulletmd/common/tree";
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import { parseMarkdown } from "@silverbulletmd/plugos-silverbullet-syscall/markdown";
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export function encodePageUrl(name: string): string {
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return name.replaceAll(" ", "_");
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}
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export async function cleanMarkdown(
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text: string,
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validPages?: string[]
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): Promise<string> {
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let mdTree = await parseMarkdown(text);
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replaceNodesMatching(mdTree, (n) => {
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if (n.type === "WikiLink") {
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const page = n.children![1].children![0].text!;
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if (validPages && !validPages.includes(page)) {
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return {
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// HACK
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text: `_${page}_`,
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};
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}
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return {
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// HACK
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text: `[${page}](/${encodePageUrl(page)})`,
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};
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}
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// Simply get rid of these
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if (
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n.type === "CommentBlock" ||
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n.type === "Comment" ||
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n.type === "NamedAnchor"
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) {
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return null;
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}
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if (n.type === "Hashtag") {
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return {
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text: `__${n.children![0].text}__`,
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};
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}
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if (n.type === "URL") {
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const url = n.children![0].text!;
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if (url.indexOf("://") === -1) {
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n.children![0].text = `attachment/${url}`;
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}
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console.log("Link", url);
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}
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if (n.type === "FencedCode") {
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let codeInfoNode = findNodeOfType(n, "CodeInfo");
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if (!codeInfoNode) {
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return;
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}
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if (codeInfoNode.children![0].text === "meta") {
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return null;
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}
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}
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});
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return renderToText(mdTree);
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}
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