year.js 10.0 KB

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  1. /**
  2. * @fileoverview added by tsickle
  3. * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  4. */
  5. import { addFormatToken } from '../format/format';
  6. import { getFullYear } from '../utils/date-getters';
  7. import { addRegexToken, match1to2, match1to4, match1to6, match2, match4, match6, matchSigned } from '../parse/regex';
  8. import { addParseToken } from '../parse/token';
  9. import { YEAR } from './constants';
  10. import { toInt } from '../utils/type-checks';
  11. import { addUnitPriority } from './priorities';
  12. import { addUnitAlias } from './aliases';
  13. // FORMATTING
  14. /**
  15. * @param {?} date
  16. * @param {?} opts
  17. * @return {?}
  18. */
  19. function getYear(date, opts) {
  20. return getFullYear(date, opts.isUTC).toString();
  21. }
  22. /**
  23. * @return {?}
  24. */
  25. export function initYear() {
  26. addFormatToken('Y', null, null, (/**
  27. * @param {?} date
  28. * @param {?} opts
  29. * @return {?}
  30. */
  31. function (date, opts) {
  32. /** @type {?} */
  33. var y = getFullYear(date, opts.isUTC);
  34. return y <= 9999 ? y.toString(10) : "+" + y;
  35. }));
  36. addFormatToken(null, ['YY', 2, false], null, (/**
  37. * @param {?} date
  38. * @param {?} opts
  39. * @return {?}
  40. */
  41. function (date, opts) {
  42. return (getFullYear(date, opts.isUTC) % 100).toString(10);
  43. }));
  44. addFormatToken(null, ['YYYY', 4, false], null, getYear);
  45. addFormatToken(null, ['YYYYY', 5, false], null, getYear);
  46. addFormatToken(null, ['YYYYYY', 6, true], null, getYear);
  47. // ALIASES
  48. addUnitAlias('year', 'y');
  49. // PRIORITIES
  50. addUnitPriority('year', 1);
  51. // PARSING
  52. addRegexToken('Y', matchSigned);
  53. addRegexToken('YY', match1to2, match2);
  54. addRegexToken('YYYY', match1to4, match4);
  55. addRegexToken('YYYYY', match1to6, match6);
  56. addRegexToken('YYYYYY', match1to6, match6);
  57. addParseToken(['YYYYY', 'YYYYYY'], YEAR);
  58. addParseToken('YYYY', (/**
  59. * @param {?} input
  60. * @param {?} array
  61. * @param {?} config
  62. * @return {?}
  63. */
  64. function (input, array, config) {
  65. array[YEAR] = input.length === 2 ? parseTwoDigitYear(input) : toInt(input);
  66. return config;
  67. }));
  68. addParseToken('YY', (/**
  69. * @param {?} input
  70. * @param {?} array
  71. * @param {?} config
  72. * @return {?}
  73. */
  74. function (input, array, config) {
  75. array[YEAR] = parseTwoDigitYear(input);
  76. return config;
  77. }));
  78. addParseToken('Y', (/**
  79. * @param {?} input
  80. * @param {?} array
  81. * @param {?} config
  82. * @return {?}
  83. */
  84. function (input, array, config) {
  85. array[YEAR] = parseInt(input, 10);
  86. return config;
  87. }));
  88. }
  89. /**
  90. * @param {?} input
  91. * @return {?}
  92. */
  93. export function parseTwoDigitYear(input) {
  94. return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
  95. }
  96. /**
  97. * @param {?} year
  98. * @return {?}
  99. */
  100. export function daysInYear(year) {
  101. return isLeapYear(year) ? 366 : 365;
  102. }
  103. /**
  104. * @param {?} year
  105. * @return {?}
  106. */
  107. export function isLeapYear(year) {
  108. return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
  109. }
  110. //# 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