Method yamlDirectiveHandler

yaml/_loader_state.ts:301–329

(args: string[])

  }

  yamlDirectiveHandler(args: string[]): string | null {
    if (args.length !== 1) {
      throw this.#createError(
        "Cannot handle YAML directive: YAML directive accepts exactly one argument",
      );
    }

    const match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]!);
    if (match === null) {
      throw this.#createError(
        "Cannot handle YAML directive: ill-formed argument",
      );
    }

    const major = parseInt(match[1]!, 10);
    const minor = parseInt(match[2]!, 10);
    if (major !== 1) {
      throw this.#createError(
        "Cannot handle YAML directive: unacceptable YAML version",
      );
    }
    this.checkLineBreaks = minor < 2;
    if (minor !== 1 && minor !== 2) {
      this.dispatchWarning(
        "Cannot handle YAML directive: unsupported YAML version",
      );
    }
    return args[0] ?? null;
  }
  tagDirectiveHandler(args: string[]) {
    if (args.length !== 2) {
      throw this.#createError(