Function readFrontmatterField

src/skill-manager.ts:158–182

(frontmatter: string, field: string)

}

function readFrontmatterField(frontmatter: string, field: string): string | null {
  const lines = frontmatter.split(/\r?\n/);

  for (let index = 0; index < lines.length; index += 1) {
    const match = lines[index].match(/^([A-Za-z0-9_-]+):(?:\s*(.*))?$/);
    if (!match || match[1] !== field) {
      continue;
    }

    const rawValue = (match[2] ?? "").trim();
    if (isBlockScalar(rawValue)) {
      const [value] = readBlockScalar(lines, index + 1, rawValue);
      return value;
    }

    if (rawValue === "") {
      const [value] = readIndentedScalar(lines, index + 1);
      return value;
    }

    return stripWrappingQuotes(rawValue);
  }

  return null;
}

function isBlockScalar(value: string): boolean {
  return /^[>|][0-9+-]*$/.test(value);