137 lines
6.1 KiB
JavaScript
137 lines
6.1 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = lightFormat;
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var _index = _interopRequireDefault(require("../toDate/index.js"));
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var _index2 = _interopRequireDefault(require("../_lib/format/lightFormatters/index.js"));
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var _index3 = _interopRequireDefault(require("../_lib/getTimezoneOffsetInMilliseconds/index.js"));
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var _index4 = _interopRequireDefault(require("../isValid/index.js"));
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var _index5 = _interopRequireDefault(require("../subMilliseconds/index.js"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// This RegExp consists of three parts separated by `|`:
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// - (\w)\1* matches any sequences of the same letter
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// - '' matches two quote characters in a row
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// - '(''|[^'])+('|$) matches anything surrounded by two quote characters ('),
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// except a single quote symbol, which ends the sequence.
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// Two quote characters do not end the sequence.
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// If there is no matching single quote
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// then the sequence will continue until the end of the string.
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// - . matches any single character unmatched by previous parts of the RegExps
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var formattingTokensRegExp = /(\w)\1*|''|'(''|[^'])+('|$)|./g;
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var escapedStringRegExp = /^'([^]*?)'?$/;
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var doubleQuoteRegExp = /''/g;
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var unescapedLatinCharacterRegExp = /[a-zA-Z]/;
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/**
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* @name lightFormat
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* @category Common Helpers
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* @summary Format the date.
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*
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* @description
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* Return the formatted date string in the given format. Unlike `format`,
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* `lightFormat` doesn't use locales and outputs date using the most popular tokens.
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*
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* > ⚠️ Please note that the `lightFormat` tokens differ from Moment.js and other libraries.
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* > See: https://git.io/fxCyr
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*
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* The characters wrapped between two single quotes characters (') are escaped.
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* Two single quotes in a row, whether inside or outside a quoted sequence, represent a 'real' single quote.
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*
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* Format of the string is based on Unicode Technical Standard #35:
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* https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
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*
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* Accepted patterns:
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* | Unit | Pattern | Result examples |
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* |---------------------------------|---------|-----------------------------------|
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* | AM, PM | a..aaa | AM, PM |
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* | | aaaa | a.m., p.m. |
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* | | aaaaa | a, p |
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* | Calendar year | y | 44, 1, 1900, 2017 |
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* | | yy | 44, 01, 00, 17 |
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* | | yyy | 044, 001, 000, 017 |
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* | | yyyy | 0044, 0001, 1900, 2017 |
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* | Month (formatting) | M | 1, 2, ..., 12 |
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* | | MM | 01, 02, ..., 12 |
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* | Day of month | d | 1, 2, ..., 31 |
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* | | dd | 01, 02, ..., 31 |
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* | Hour [1-12] | h | 1, 2, ..., 11, 12 |
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* | | hh | 01, 02, ..., 11, 12 |
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* | Hour [0-23] | H | 0, 1, 2, ..., 23 |
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* | | HH | 00, 01, 02, ..., 23 |
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* | Minute | m | 0, 1, ..., 59 |
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* | | mm | 00, 01, ..., 59 |
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* | Second | s | 0, 1, ..., 59 |
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* | | ss | 00, 01, ..., 59 |
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* | Fraction of second | S | 0, 1, ..., 9 |
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* | | SS | 00, 01, ..., 99 |
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* | | SSS | 000, 0001, ..., 999 |
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* | | SSSS | ... |
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*
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* @param {Date|Number} date - the original date
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* @param {String} format - the string of tokens
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* @returns {String} the formatted date string
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* @throws {TypeError} 2 arguments required
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* @throws {RangeError} format string contains an unescaped latin alphabet character
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*
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* @example
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* var result = lightFormat(new Date(2014, 1, 11), 'yyyy-MM-dd')
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* //=> '1987-02-11'
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*/
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function lightFormat(dirtyDate, dirtyFormatStr) {
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if (arguments.length < 2) {
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throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
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}
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var formatStr = String(dirtyFormatStr);
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var originalDate = (0, _index.default)(dirtyDate);
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if (!(0, _index4.default)(originalDate)) {
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throw new RangeError('Invalid time value');
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} // Convert the date in system timezone to the same date in UTC+00:00 timezone.
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// This ensures that when UTC functions will be implemented, locales will be compatible with them.
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// See an issue about UTC functions: https://github.com/date-fns/date-fns/issues/376
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var timezoneOffset = (0, _index3.default)(originalDate);
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var utcDate = (0, _index5.default)(originalDate, timezoneOffset);
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var result = formatStr.match(formattingTokensRegExp).map(function (substring) {
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// Replace two single quote characters with one single quote character
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if (substring === "''") {
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return "'";
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}
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var firstCharacter = substring[0];
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if (firstCharacter === "'") {
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return cleanEscapedString(substring);
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}
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var formatter = _index2.default[firstCharacter];
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if (formatter) {
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return formatter(utcDate, substring, null, {});
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}
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if (firstCharacter.match(unescapedLatinCharacterRegExp)) {
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throw new RangeError('Format string contains an unescaped latin alphabet character `' + firstCharacter + '`');
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}
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return substring;
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}).join('');
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return result;
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}
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function cleanEscapedString(input) {
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return input.match(escapedStringRegExp)[1].replace(doubleQuoteRegExp, "'");
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}
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module.exports = exports.default;
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