URLを外部リンク記法に変換するUserScript (TamperMonkeyなし)

from

code:mod.ts

import { useStatusBar } from "../scrapbox-userscript-std/dom.ts";

import { getWebPageTitle, getTweetInfo } from "../scrapbox-userscript-std/rest.ts";

import type { TweetInfo } from "../scrapbox-jp%2Ftypes/rest.ts";

const checkRegExp = /(https?:\/\/\S+)/;

export const hasURL = (text: string): boolean => checkRegExp.test(text);

export const convert = async (text: string): Promise<string> => {

if (!hasURL(text)) return text;

const { render, dispose } = useStatusBar();

render(

{ type: "spinner" },

{ type: "text", text: "convert URLs..."},

);

let count = 0;

try {

const result = await Promise.all(

text.split(checkRegExp).map(async (fragment) => {

if (!/^https?:\/\/\S+/.test(fragment)) return fragment;

let url: URL;

try {

url = new URL(fragment);

} catch(e: unknown) {

if (e instanceof TypeError) return fragment;

throw e;

}

if (isTwitterURL(url)) {

const result = await getTweetInfo(url);

if (!result.ok) return fragment;

count++;

return formatTweet(url, result.value);

}

const result = await getWebPageTitle(url);

if (!result.ok) return fragment;

count++;

const title = result.value

.replace(/\s/g, " ") // スペースと改行を全て半角スペースにする

.replaceAll("[", "［")

.replaceAll("]", "］");

})

);

render(

{ type: "check-circle" },

);

return result.join("");

} catch(e: unknown) {

render(

{ type: "exclamation-triangle" },

{ type: "text", text: e instanceof Error ?

},

);

console.error(e);

throw e;

} finally {

setTimeout(() => dispose(), 1000);

}

};

Tweetのformat

code:mod.ts

const isTwitterURL = (url: string | URL) =>

const escapeForEmbed = (text: string) => text

.replace(/\b/gm, "")

.trim();

const formatTweet = (url: URL, tweet: TweetInfo) => [

].join("\n");