progfay/scrapbox-parser

import { createPlainNode } from "./PlainNode.ts";
import { createNodeParser } from "./creator.ts";

import type { NodeCreator } from "./creator.ts";
import type { HashTagNode, PlainNode } from "./type.ts";

const hashTagRegExp = /(?:^|\s)#\S+/;

const createHashTagNode: NodeCreator<HashTagNode | PlainNode> = (raw, opts) => {
    if (opts.context === "table") {
        return createPlainNode(raw, opts);
    }

    if (raw.startsWith("#")) {
        return [
            {
                type: "hashTag",
                raw,
                href: raw.substring(1),
            },
        ];
    }

    const space = raw.substring(0, 1);
    const tag = raw.substring(1);

    return [
        ...createPlainNode(space, opts),
        {
            type: "hashTag",
            raw: tag,
            href: tag.substring(1),
        },
    ];
};

export const HashTagNodeParser = createNodeParser(createHashTagNode, {
    parseOnNested: true,
    parseOnQuoted: true,
    patterns: [hashTagRegExp],
});