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const DT_SEPARATOR = /t|\s/i const DATE = /^(\d\d\d\d)-(\d\d)-(\d\d)$/ const TIME = /^(\d\d):(\d\d):(\d\d)(?:\.\d+)?(?:z|([+-]\d\d)(?::?(\d\d))?)$/i const DAYS = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] export default function validTimestamp(str: string, allowDate: boolean): boolean { // http://tools.ietf.org/html/rfc3339#section-5.6 const dt: string[] = str.split(DT_SEPARATOR) return ( (dt.length === 2 && validDate(dt[0]) && validTime(dt[1])) || (allowDate && dt.length === 1 && validDate(dt[0])) ) } function validDate(str: string): boolean { const matches: string[] | null = DATE.exec(str) if (!matches) return false const y: number = +matches[1] const m: number = +matches[2] const d: number = +matches[3] return ( m >= 1 && m <= 12 && d >= 1 && (d <= DAYS[m] || // leap year: https://tools.ietf.org/html/rfc3339#appendix-C (m === 2 && d === 29 && (y % 100 === 0 ? y % 400 === 0 : y % 4 === 0))) ) } function validTime(str: string): boolean { const matches: string[] | null = TIME.exec(str) if (!matches) return false const hr: number = +matches[1] const min: number = +matches[2] const sec: number = +matches[3] const tzH: number = +(matches[4] || 0) const tzM: number = +(matches[5] || 0) return ( (hr <= 23 && min <= 59 && sec <= 59) || // leap second (hr - tzH === 23 && min - tzM === 59 && sec === 60) ) } validTimestamp.code = 'require("ajv/dist/runtime/timestamp").default'