Method put

src/register/register.ts:54–79

* Puts given content in the currently selected register, using the current RegisterMode. * * @param copyToUnnamed: If true, set the unnamed register (") as well

(
    vimState: VimState,
    content: RegisterContent,
    multicursorIndex?: number,
    copyToUnnamed?: boolean,
  )

   * @param copyToUnnamed: If true, set the unnamed register (") as well
   */
  public static put(
    vimState: VimState,
    content: RegisterContent,
    multicursorIndex?: number,
    copyToUnnamed?: boolean,
  ): void {
    const register = vimState.recordedState.registerName;

    if (!Register.isValidRegister(register)) {
      throw new Error(`Invalid register ${register}`);
    }

    if (Register.isBlackHoleRegister(register) || Register.isReadOnlyRegister(register)) {
      return;
    }

    if (Register.isValidUppercaseRegister(register)) {
      Register.appendToRegister(vimState, register.toLowerCase(), content, multicursorIndex ?? 0);
    } else {
      Register.overwriteRegister(vimState, register, content, multicursorIndex ?? 0);
    }

    if (copyToUnnamed && register !== '"') {
      Register.registers.set('"', Register.registers.get(register)!);
    }
  }

  public static isValidRegister(register: string): boolean {
    return (