Function parseAscTimeDate

deps/undici/src/lib/util/date.js:237–434

* @see https://httpwg.org/specs/rfc9110.html#obsolete.date.formats * * @param {string} date * @returns {Date | undefined}

(date)

 * @returns {Date | undefined}
 */
function parseAscTimeDate (date) {
  // This is assumed to be in UTC

  if (
    date.length !== 24 ||
    date[7] !== ' ' ||
    date[10] !== ' ' ||
    date[19] !== ' '
  ) {
    return undefined
  }

  let weekday = -1
  if (date[0] === 'S' && date[1] === 'u' && date[2] === 'n') { // Sunday
    weekday = 0
  } else if (date[0] === 'M' && date[1] === 'o' && date[2] === 'n') { // Monday
    weekday = 1
  } else if (date[0] === 'T' && date[1] === 'u' && date[2] === 'e') { // Tuesday
    weekday = 2
  } else if (date[0] === 'W' && date[1] === 'e' && date[2] === 'd') { // Wednesday
    weekday = 3
  } else if (date[0] === 'T' && date[1] === 'h' && date[2] === 'u') { // Thursday
    weekday = 4
  } else if (date[0] === 'F' && date[1] === 'r' && date[2] === 'i') { // Friday
    weekday = 5
  } else if (date[0] === 'S' && date[1] === 'a' && date[2] === 't') { // Saturday
    weekday = 6
  } else {
    return undefined // Not a valid day of the week
  }

  let monthIdx = -1
  if (
    (date[4] === 'J' && date[5] === 'a' && date[6] === 'n')
  ) {
    monthIdx = 0 // Jan
  } else if (
    (date[4] === 'F' && date[5] === 'e' && date[6] === 'b')
  ) {
    monthIdx = 1 // Feb
  } else if (
    (date[4] === 'M' && date[5] === 'a')
  ) {
    if (date[6] === 'r') {
      monthIdx = 2 // Mar
    } else if (date[6] === 'y') {
      monthIdx = 4 // May
    } else {
      return undefined // Invalid month
    }
  } else if (
    (date[4] === 'J')
  ) {
    if (date[5] === 'a' && date[6] === 'n') {
      monthIdx = 0 // Jan
    } else if (date[5] === 'u') {
      if (date[6] === 'n') {
        monthIdx = 5 // Jun