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Diffstat (limited to 'node_modules/date-fns/esm/parse/_lib/utils.js')
| -rw-r--r-- | node_modules/date-fns/esm/parse/_lib/utils.js | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/node_modules/date-fns/esm/parse/_lib/utils.js b/node_modules/date-fns/esm/parse/_lib/utils.js new file mode 100644 index 0000000..1a855a3 --- /dev/null +++ b/node_modules/date-fns/esm/parse/_lib/utils.js @@ -0,0 +1,112 @@ +import { millisecondsInHour, millisecondsInMinute, millisecondsInSecond } from "../../constants/index.js"; +import { numericPatterns } from "./constants.js"; +export function mapValue(parseFnResult, mapFn) { + if (!parseFnResult) { + return parseFnResult; + } + return { + value: mapFn(parseFnResult.value), + rest: parseFnResult.rest + }; +} +export function parseNumericPattern(pattern, dateString) { + var matchResult = dateString.match(pattern); + if (!matchResult) { + return null; + } + return { + value: parseInt(matchResult[0], 10), + rest: dateString.slice(matchResult[0].length) + }; +} +export function parseTimezonePattern(pattern, dateString) { + var matchResult = dateString.match(pattern); + if (!matchResult) { + return null; + } + + // Input is 'Z' + if (matchResult[0] === 'Z') { + return { + value: 0, + rest: dateString.slice(1) + }; + } + var sign = matchResult[1] === '+' ? 1 : -1; + var hours = matchResult[2] ? parseInt(matchResult[2], 10) : 0; + var minutes = matchResult[3] ? parseInt(matchResult[3], 10) : 0; + var seconds = matchResult[5] ? parseInt(matchResult[5], 10) : 0; + return { + value: sign * (hours * millisecondsInHour + minutes * millisecondsInMinute + seconds * millisecondsInSecond), + rest: dateString.slice(matchResult[0].length) + }; +} +export function parseAnyDigitsSigned(dateString) { + return parseNumericPattern(numericPatterns.anyDigitsSigned, dateString); +} +export function parseNDigits(n, dateString) { + switch (n) { + case 1: + return parseNumericPattern(numericPatterns.singleDigit, dateString); + case 2: + return parseNumericPattern(numericPatterns.twoDigits, dateString); + case 3: + return parseNumericPattern(numericPatterns.threeDigits, dateString); + case 4: + return parseNumericPattern(numericPatterns.fourDigits, dateString); + default: + return parseNumericPattern(new RegExp('^\\d{1,' + n + '}'), dateString); + } +} +export function parseNDigitsSigned(n, dateString) { + switch (n) { + case 1: + return parseNumericPattern(numericPatterns.singleDigitSigned, dateString); + case 2: + return parseNumericPattern(numericPatterns.twoDigitsSigned, dateString); + case 3: + return parseNumericPattern(numericPatterns.threeDigitsSigned, dateString); + case 4: + return parseNumericPattern(numericPatterns.fourDigitsSigned, dateString); + default: + return parseNumericPattern(new RegExp('^-?\\d{1,' + n + '}'), dateString); + } +} +export 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; + } +} +export function normalizeTwoDigitYear(twoDigitYear, currentYear) { + var isCommonEra = currentYear > 0; + // Absolute number of the current year: + // 1 -> 1 AC + // 0 -> 1 BC + // -1 -> 2 BC + var absCurrentYear = isCommonEra ? currentYear : 1 - currentYear; + var result; + if (absCurrentYear <= 50) { + result = twoDigitYear || 100; + } else { + var rangeEnd = absCurrentYear + 50; + var rangeEndCentury = Math.floor(rangeEnd / 100) * 100; + var isPreviousCentury = twoDigitYear >= rangeEnd % 100; + result = twoDigitYear + rangeEndCentury - (isPreviousCentury ? 100 : 0); + } + return isCommonEra ? result : 1 - result; +} +export function isLeapYearIndex(year) { + return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0; +}
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