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moment-jdateformatparser.js
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moment-jdateformatparser.js
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/**
*
*/
(function () {
/**
* The **moment.js** library.
*
* @property moment
* @type {Object}
*/
var moment,
/**
* The internal **Java** date formats cache.
*
* @property javaDateFormats
* @type {Object}
*/
javaDateFormats = {},
/**
* The internal **moment.js** date formats cache.
*
* @property momentDateFormats
* @type {Object}
*/
momentDateFormats = {},
/**
* The format pattern mapping from Java format to momentjs.
*
* @property javaFormatMapping
* @type {Object}
*/
javaFormatMapping = {
d: 'D',
dd: 'DD',
y: 'YYYY',
yy: 'YY',
yyy: 'YYYY',
yyyy: 'YYYY',
a: 'a',
A: 'A',
M: 'M',
MM: 'MM',
MMM: 'MMM',
MMMM: 'MMMM',
h: 'h',
hh: 'hh',
H: 'H',
HH: 'HH',
m: 'm',
mm: 'mm',
s: 's',
ss: 'ss',
S: 'SSS',
SS: 'SSS',
SSS: 'SSS',
E: 'ddd',
EE: 'ddd',
EEE: 'ddd',
EEEE: 'dddd',
EEEEE: 'dddd',
EEEEEE: 'dddd',
D: 'DDD',
w: 'W',
ww: 'WW',
z: 'ZZ',
zzzz: 'Z',
Z: 'ZZ',
X: 'ZZ',
XX: 'ZZ',
XXX: 'Z',
u: 'E'
},
/**
* The format pattern mapping from Java format to momentjs.
*
* @property momentFormatMapping
* @type {Object}
*/
momentFormatMapping = {
D: 'd',
DD: 'dd',
YY: 'yy',
YYY: 'yyyy',
YYYY: 'yyyy',
a: 'a',
A: 'a',
M: 'M',
MM: 'MM',
MMM: 'MMM',
MMMM: 'MMMM',
h: 'h',
hh: 'hh',
H: 'H',
HH: 'HH',
m: 'm',
mm: 'mm',
s: 's',
ss: 'ss',
S: 'S',
SS: 'S',
SSS: 'S',
ddd: 'E',
dddd: 'EEEE',
DDD: 'D',
W: 'w',
WW: 'ww',
ZZ: 'z',
Z: 'XXX',
E: 'u'
};
function hookMoment (moment) {
// register as private function (good for testing purposes)
moment.fn.__translateJavaFormat = translateFormat;
/**
* Translates the momentjs format String to a java date format String.
*
* @function toJDFString
* @param {String} formatString The format String to be translated.
* @returns {String}
*/
moment.fn.toMomentFormatString = function (formatString) {
if (!javaDateFormats[formatString]) {
var mapped = "";
var regexp = /[^']+|('[^']*')/g;
var part = '';
while ((part = regexp.exec(formatString))) {
part = part[0];
if (part.match(/'.?'/)) {
mapped += "[" + part.substring(1, part.length - 1) + "]";
}
else {
mapped += translateFormat(part, javaFormatMapping);
}
}
javaDateFormats[formatString] = mapped;
}
return javaDateFormats[formatString];
};
/**
* Format the moment with the given java date format String.
*
* @function formatWithJDF
* @param {String} formatString The format String to be translated.
* @returns {String}
*/
moment.fn.formatWithJDF = function (formatString) {
return this.format(this.toMomentFormatString(formatString));
};
/**
* Translates the momentjs format string to a java date format string
*
* @function toJDFString
* @param {String} formatString The format String to be translated.
* @returns {String}
*/
moment.fn.toJDFString = function (formatString) {
if (!momentDateFormats[formatString]) {
momentDateFormats[formatString] = translateFormat(formatString, momentFormatMapping);
}
return momentDateFormats[formatString];
};
if (typeof module !== 'undefined' && module !== null) {
module.exports = moment;
} else {
this.moment = moment;
}
}
if (!this.moment && typeof require === 'function') {
if (module && module.exports) { //Check if the environment is Node.js
hookMoment(require('moment')); //if it is, we have to require it different (without the surrounding Array)
} else {
require(['moment'], function (moment) {
hookMoment(moment);
});
}
} else {
hookMoment(this.moment);
}
/**
* Translates the java date format String to a momentjs format String.
*
* @function translateFormat
* @param {String} formatString The unmodified format string
* @param {Object} mapping The date format mapping object
* @returns {String}
*/
var translateFormat = function (formatString, mapping) {
var len = formatString.length,
i = 0,
beginIndex = -1,
lastChar = null,
currentChar = "",
resultString = "";
for (; i < len; i++) {
currentChar = formatString.charAt(i);
if (lastChar === null || lastChar !== currentChar) {
// change detected
resultString = _appendMappedString(formatString, mapping, beginIndex, i, resultString);
beginIndex = i;
}
lastChar = currentChar;
}
return _appendMappedString(formatString, mapping, beginIndex, i, resultString);
};
/**
* Checks if the substring is a mapped date format pattern and adds it to the result format String.
*
* @function _appendMappedString
* @param {String} formatString The unmodified format String.
* @param {Object} mapping The date format mapping Object.
* @param {Number} beginIndex The begin index of the continuous format characters.
* @param {Number} currentIndex The last index of the continuous format characters.
* @param {String} resultString The result format String.
* @returns {String}
* @private
*/
var _appendMappedString = function (formatString, mapping, beginIndex, currentIndex, resultString) {
var tempString;
if (beginIndex !== -1) {
tempString = formatString.substring(beginIndex, currentIndex);
// check if the temporary string has a known mapping
if (mapping[tempString]) {
tempString = mapping[tempString];
}
resultString = resultString.concat(tempString);
}
return resultString;
};
}).call(this);