tldraw
Version:
A tiny little drawing editor.
64 lines (63 loc) • 1.75 kB
JavaScript
import { safeParseUrl } from "@tldraw/editor";
function escapeStringRegexp(string) {
if (typeof string !== "string") {
throw new TypeError("Expected a string");
}
return string.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&").replace(/-/g, "\\x2d");
}
function matchEmbedUrl(definitions, url) {
const parsed = safeParseUrl(url);
if (!parsed) return;
const host = parsed.host.replace("www.", "");
for (const localEmbedDef of definitions) {
if (checkHostnames(localEmbedDef.hostnames, host)) {
const originalUrl = localEmbedDef.fromEmbedUrl(url);
if (originalUrl) {
return {
definition: localEmbedDef,
url: originalUrl,
embedUrl: url
};
}
}
}
}
const globlikeRegExp = (input) => {
return input.split("*").map((str) => escapeStringRegexp(str)).join(".+");
};
const checkHostnames = (hostnames, targetHostname) => {
return !!hostnames.find((hostname) => {
const re = new RegExp(globlikeRegExp(hostname));
return targetHostname.match(re);
});
};
function matchUrl(definitions, url) {
const parsed = safeParseUrl(url);
if (!parsed) return;
const host = parsed.host.replace("www.", "");
for (const localEmbedDef of definitions) {
if (checkHostnames(localEmbedDef.hostnames, host)) {
const embedUrl = localEmbedDef.toEmbedUrl(url);
if (embedUrl) {
return {
definition: localEmbedDef,
embedUrl,
url
};
}
}
}
}
function getEmbedInfo(definitions, inputUrl) {
try {
return matchUrl(definitions, inputUrl) ?? matchEmbedUrl(definitions, inputUrl);
} catch {
return void 0;
}
}
export {
getEmbedInfo,
matchEmbedUrl,
matchUrl
};
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