Function numberToLetter

src/utils/markdown.ts:725–733

(n: number)

}

function numberToLetter(n: number): string {
  let result = ''
  while (n > 0) {
    n--
    result = String.fromCharCode(97 + (n % 26)) + result
    n = Math.floor(n / 26)
  }
  return result
}

const ROMAN_VALUES: ReadonlyArray<[number, string]> = [
  [1000, 'm'],