fully-react/src/rsc-plugin/utils.ts

React Server for Vite

export function hasRscQuery(id: string) {
	const query = splitQuery(id)[1];
	return query.match(/(^|&)rsc($|&|=)/);
}

export function addRscQuery(id: string) {
	if (id.includes("?")) {
		return id + "&rsc";
	} else {
		return id + "?rsc";
	}
}

export function removeRscQuery(id: string) {
	const [base, query] = splitQuery(id);
	if (!query) return id;

	const newQuery = query
		.split("&")
		.filter((part) => !part.match(/rsc($|=)/))
		.join("&");

	if (!newQuery) return base;

	return base + "?" + newQuery;
}

export function splitQuery(id: string) {
	const index = id.indexOf("?");
	if (index === -1) return [id, ""];
	return [id.slice(0, index), id.slice(index + 1)];
}