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node_modules/date-fns/parse/_lib/utils.cjs

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+"use strict";
+exports.dayPeriodEnumToHours = dayPeriodEnumToHours;
+exports.isLeapYearIndex = isLeapYearIndex;
+exports.mapValue = mapValue;
+exports.normalizeTwoDigitYear = normalizeTwoDigitYear;
+exports.parseAnyDigitsSigned = parseAnyDigitsSigned;
+exports.parseNDigits = parseNDigits;
+exports.parseNDigitsSigned = parseNDigitsSigned;
+exports.parseNumericPattern = parseNumericPattern;
+exports.parseTimezonePattern = parseTimezonePattern;
+var _index = require("../../constants.cjs");
+
+var _constants = require("./constants.cjs");
+
+function mapValue(parseFnResult, mapFn) {
+  if (!parseFnResult) {
+    return parseFnResult;
+  }
+
+  return {
+    value: mapFn(parseFnResult.value),
+    rest: parseFnResult.rest,
+  };
+}
+
+function parseNumericPattern(pattern, dateString) {
+  const matchResult = dateString.match(pattern);
+
+  if (!matchResult) {
+    return null;
+  }
+
+  return {
+    value: parseInt(matchResult[0], 10),
+    rest: dateString.slice(matchResult[0].length),
+  };
+}
+
+function parseTimezonePattern(pattern, dateString) {
+  const matchResult = dateString.match(pattern);
+
+  if (!matchResult) {
+    return null;
+  }
+
+  // Input is 'Z'
+  if (matchResult[0] === "Z") {
+    return {
+      value: 0,
+      rest: dateString.slice(1),
+    };
+  }
+
+  const sign = matchResult[1] === "+" ? 1 : -1;
+  const hours = matchResult[2] ? parseInt(matchResult[2], 10) : 0;
+  const minutes = matchResult[3] ? parseInt(matchResult[3], 10) : 0;
+  const seconds = matchResult[5] ? parseInt(matchResult[5], 10) : 0;
+
+  return {
+    value:
+      sign *
+      (hours * _index.millisecondsInHour +
+        minutes * _index.millisecondsInMinute +
+        seconds * _index.millisecondsInSecond),
+    rest: dateString.slice(matchResult[0].length),
+  };
+}
+
+function parseAnyDigitsSigned(dateString) {
+  return parseNumericPattern(
+    _constants.numericPatterns.anyDigitsSigned,
+    dateString,
+  );
+}
+
+function parseNDigits(n, dateString) {
+  switch (n) {
+    case 1:
+      return parseNumericPattern(
+        _constants.numericPatterns.singleDigit,
+        dateString,
+      );
+    case 2:
+      return parseNumericPattern(
+        _constants.numericPatterns.twoDigits,
+        dateString,
+      );
+    case 3:
+      return parseNumericPattern(
+        _constants.numericPatterns.threeDigits,
+        dateString,
+      );
+    case 4:
+      return parseNumericPattern(
+        _constants.numericPatterns.fourDigits,
+        dateString,
+      );
+    default:
+      return parseNumericPattern(new RegExp("^\\d{1," + n + "}"), dateString);
+  }
+}
+
+function parseNDigitsSigned(n, dateString) {
+  switch (n) {
+    case 1:
+      return parseNumericPattern(
+        _constants.numericPatterns.singleDigitSigned,
+        dateString,
+      );
+    case 2:
+      return parseNumericPattern(
+        _constants.numericPatterns.twoDigitsSigned,
+        dateString,
+      );
+    case 3:
+      return parseNumericPattern(
+        _constants.numericPatterns.threeDigitsSigned,
+        dateString,
+      );
+    case 4:
+      return parseNumericPattern(
+        _constants.numericPatterns.fourDigitsSigned,
+        dateString,
+      );
+    default:
+      return parseNumericPattern(new RegExp("^-?\\d{1," + n + "}"), dateString);
+  }
+}
+
+function dayPeriodEnumToHours(dayPeriod) {
+  switch (dayPeriod) {
+    case "morning":
+      return 4;
+    case "evening":
+      return 17;
+    case "pm":
+    case "noon":
+    case "afternoon":
+      return 12;
+    case "am":
+    case "midnight":
+    case "night":
+    default:
+      return 0;
+  }
+}
+
+function normalizeTwoDigitYear(twoDigitYear, currentYear) {
+  const isCommonEra = currentYear > 0;
+  // Absolute number of the current year:
+  // 1 -> 1 AC
+  // 0 -> 1 BC
+  // -1 -> 2 BC
+  const absCurrentYear = isCommonEra ? currentYear : 1 - currentYear;
+
+  let result;
+  if (absCurrentYear <= 50) {
+    result = twoDigitYear || 100;
+  } else {
+    const rangeEnd = absCurrentYear + 50;
+    const rangeEndCentury = Math.trunc(rangeEnd / 100) * 100;
+    const isPreviousCentury = twoDigitYear >= rangeEnd % 100;
+    result = twoDigitYear + rangeEndCentury - (isPreviousCentury ? 100 : 0);
+  }
+
+  return isCommonEra ? result : 1 - result;
+}
+
+function isLeapYearIndex(year) {
+  return year % 400 === 0 || (year % 4 === 0 && year % 100 !== 0);
+}