@moritzrs/micromark-extension-ofm-wikilink/dist/lib/html.js

micromark extension to support OFM wikilinks

/**
 * Create an HTML extension for `micromark` to support OFM wikilinks when
 * serializing to HTML.
 */
export function ofmWikilinkHtml() {
    let url = "";
    let value = "";
    let embedded = false;
    return {
        enter: {
            ofmWikilink() {
                url = "";
                value = "";
                embedded = false;
            },
            ofmWikilinkEmbeddingMarker() {
                embedded = true;
            },
            ofmWikilinkPath(token) {
                const content = this.sliceSerialize(token);
                url = content;
                const parts = content.split("/");
                value = parts[parts.length - 1];
                if (value.includes("."))
                    value = value.split(".").slice(0, -1).join(".");
            },
            ofmWikilinkHash(token) {
                url += `#${this.sliceSerialize(token)}`;
            },
            ofmWikilinkAlias(token) {
                value = this.sliceSerialize(token);
            },
        },
        exit: {
            ofmWikilink() {
                const anchor = `<a href="${url}">${value}</a>`;
                if (embedded)
                    this.tag(`<iframe src="${url}">${anchor}</iframe>`);
                else
                    this.tag(anchor);
            },
        },
    };
}