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const moduleRegex = /([^@]+)@([^/]+)\/?/;
export class Module {  constructor(    public readonly protocol: string,    public readonly path: string,    public version: string,    public files: string[],  ) {}
  toString(): string {    return `${this.protocol}://${this.path}`;  }
  toStringWithVersion(): string {    return `${this.toString()}@${this.version}`;  }
  static parse = (name: string): Module => {    const u = new URL(name);    const { protocol, hostname, pathname } = u;    const result = pathname.match(moduleRegex);    let path = "";    let version = "";    if (result) {      path = hostname + result[1];      version = result[2];    } else {      path = hostname + pathname;    }    return new Module(protocol.replace(/\:$/, ""), path, version, []);  };}
export function compareModules(modA: Module, modB: Module): number {  return modA.path.localeCompare(modB.path);}
export function moduleEquals(a: Module, b: Module): boolean {  return a.protocol === b.protocol && a.path === b.path;}