@credo-ts/core/build/modules/w3c-di/proof-processing/iso8601Datetime.mjs

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//#region src/modules/w3c-di/proof-processing/iso8601Datetime.ts
/**
* ISO 8601 DateTime Validation
*
* Inlined from iso-8601-regex (https://github.com/lightningspirit/iso-8601-regex-ts)
* Licensed under MIT by lightningspirit
*
* Enforces strict calendar correctness including leap-year rules and valid day ranges.
*/
/**
* Strict ISO 8601 datetime regex with full calendar validation.
*
* Enforces:
* - Year: 0000–9999
* - Month: 01–12
* - Day: per month (01–31, 30-day months restricted, Feb 29 allowed only on leap years)
* - Hour: 00–23
* - Minute: 00–59
* - Second: 00–59
* - Milliseconds: optional, 1–3 digits
* - Timezone: "Z" (UTC) or ±HH:MM (offset -12:00…+14:00)
*
* Leap-year logic (Gregorian calendar):
* - Divisible by 4 → leap year
* - Divisible by 100 → not a leap year
* - Divisible by 400 → leap year again
*
* Format: YYYY-MM-DDTHH:mm:ss(.SSS)?(Z|±HH:MM)
*
* Valid examples:
* - "2025-11-02T10:20:30Z"           // UTC
* - "2025-11-02T10:20:30.123Z"       // With milliseconds
* - "2025-11-02T10:20:30+01:00"      // With positive offset
* - "2024-02-29T12:00:00Z"           // Leap year (Feb 29 allowed)
*
* Invalid examples:
* - "2025-11-02T10:20:30"            // Missing timezone
* - "2025-04-31T12:00:00Z"           // Invalid day for April
* - "1900-02-29T00:00:00Z"           // 1900 not a leap year
* - "2025-11-02T24:00:00Z"           // Invalid hour
*/
const ISO8601_DATETIME_REGEX = /* @__PURE__ */ new RegExp("^(?<year>\\d{4})-(?<month>(?:0[1-9]|1[0-2]))-(?<day>(?:(?<=\\d{4}-(?:01|03|05|07|08|10|12)-)(?:0[1-9]|[12]\\d|3[01])|(?<=\\d{4}-(?:04|06|09|11)-)(?:0[1-9]|[12]\\d|30)|(?<=\\d{4}-02-)(?:0[1-9]|1\\d|2[0-8])|(?<=((?:\\d{2}(?:0[48]|[2468][048]|[13579][26]))|(?:(?:[02468][048]|[13579][26])00))-02-)29))T(?<hour>(?:[01]\\d|2[0-3])):(?<minute>[0-5]\\d):(?<second>[0-5]\\d)(?:\\.(?<millisecond>\\d{1,3}))?(?<timezone>Z|(?:\\+(?:(?:0\\d|1[0-3]):[0-5]\\d|14:00)|-(?:(?:0\\d|1[01]):[0-5]\\d|12:00)))$");
/**
* Validate XSD dateTimeStamp format per W3C XMLSCHEMA11-2.
*
* Requires timezone component (Z or ±HH:MM offset) with full calendar validation.
* Falls back to Date.parse() for semantic correctness.
*
* Spec reference: VC DI EdDSA v1.0 §3.3.5 step 3
* https://www.w3.org/TR/vc-di-eddsa/#proof-configuration-eddsa-jcs-2022
*/
function isXsdDateTimeStamp(value) {
	if (!ISO8601_DATETIME_REGEX.test(value)) return false;
	return !Number.isNaN(Date.parse(value));
}
//#endregion
export { ISO8601_DATETIME_REGEX, isXsdDateTimeStamp };

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