devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
195 lines (194 loc) • 7.72 kB
JavaScript
/**
* DevExtreme (localization/ldml/date.format.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var ARABIC_COMMA = "،",
FORMAT_SEPARATORS = " .,:;/\\<>()-[]" + ARABIC_COMMA,
ARABIC_ZERO_CODE = 1632;
var checkDigit = function(char) {
var code = char && char.charCodeAt(0);
return char >= "0" && char <= "9" || code >= ARABIC_ZERO_CODE && code < ARABIC_ZERO_CODE + 10
};
var checkPatternContinue = function(text, index, isDigit) {
var char = text[index],
prevChar = text[index - 1],
nextChar = text[index + 1];
if (!isDigit) {
if ("." === char || " " === char && "." === prevChar) {
return true
}
if ("-" === char && !checkDigit(nextChar)) {
return true
}
}
return FORMAT_SEPARATORS.indexOf(char) < 0 && isDigit === checkDigit(char)
};
var getPatternStartIndex = function(defaultPattern, index) {
if (!checkDigit(defaultPattern[index])) {
while (index > 0 && !checkDigit(defaultPattern[index - 1]) && ("." === defaultPattern[index - 1] || FORMAT_SEPARATORS.indexOf(defaultPattern[index - 1]) < 0)) {
index--
}
}
return index
};
var getDifference = function(defaultPattern, patterns, processedIndexes, isDigit) {
var i = 0,
result = [];
var patternsFilter = function(pattern) {
return defaultPattern[i] !== pattern[i] && (void 0 === isDigit || checkDigit(defaultPattern[i]) === isDigit)
};
if (!Array.isArray(patterns)) {
patterns = [patterns]
}
for (i = 0; i < defaultPattern.length; i++) {
if (processedIndexes.indexOf(i) < 0 && patterns.filter(patternsFilter).length) {
i = getPatternStartIndex(defaultPattern, i);
do {
isDigit = checkDigit(defaultPattern[i]);
if (!result.length && !isDigit && checkDigit(patterns[0][i])) {
break
}
result.push(i);
processedIndexes.unshift(i);
i++
} while (defaultPattern[i] && checkPatternContinue(defaultPattern, i, isDigit));
break
}
}
if (1 === result.length && ("0" === defaultPattern[processedIndexes[0] - 1] || "٠" === defaultPattern[processedIndexes[0] - 1])) {
processedIndexes.unshift(processedIndexes[0] - 1)
}
return result
};
var replaceCharsCore = function(pattern, indexes, char, patternPositions) {
var baseCharIndex = indexes[0];
var patternIndex = baseCharIndex < patternPositions.length ? patternPositions[baseCharIndex] : baseCharIndex;
indexes.forEach(function(_, index) {
pattern = pattern.substr(0, patternIndex + index) + (char.length > 1 ? char[index] : char) + pattern.substr(patternIndex + index + 1)
});
if (1 === indexes.length) {
pattern = pattern.replace("0" + char, char + char);
pattern = pattern.replace("٠" + char, char + char)
}
return pattern
};
var replaceChars = function(pattern, indexes, char, patternPositions) {
var i, index, patternIndex;
if (!checkDigit(pattern[indexes[0]] || "0")) {
var letterCount = Math.max(indexes.length <= 3 ? 3 : 4, char.length);
while (indexes.length > letterCount) {
index = indexes.pop();
patternIndex = patternPositions[index];
patternPositions[index] = -1;
for (i = index + 1; i < patternPositions.length; i++) {
patternPositions[i]--
}
pattern = pattern.substr(0, patternIndex) + pattern.substr(patternIndex + 1)
}
index = indexes[indexes.length - 1] + 1, patternIndex = index < patternPositions.length ? patternPositions[index] : index;
while (indexes.length < letterCount) {
indexes.push(indexes[indexes.length - 1] + 1);
for (i = index; i < patternPositions.length; i++) {
patternPositions[i]++
}
pattern = pattern.substr(0, patternIndex) + " " + pattern.substr(patternIndex)
}
}
pattern = replaceCharsCore(pattern, indexes, char, patternPositions);
return pattern
};
var formatValue = function(value, formatter) {
if (Array.isArray(value)) {
return value.map(function(value) {
return (formatter(value) || "").toString()
})
}
return (formatter(value) || "").toString()
};
var ESCAPE_CHARS_REGEXP = /[a-zA-Z]/g;
var escapeChars = function(pattern, defaultPattern, processedIndexes, patternPositions) {
var escapeIndexes = defaultPattern.split("").map(function(char, index) {
if (processedIndexes.indexOf(index) < 0 && (char.match(ESCAPE_CHARS_REGEXP) || "'" === char)) {
return patternPositions[index]
}
return -1
});
pattern = pattern.split("").map(function(char, index) {
var result = char,
isCurrentCharEscaped = escapeIndexes.indexOf(index) >= 0,
isPrevCharEscaped = index > 0 && escapeIndexes.indexOf(index - 1) >= 0,
isNextCharEscaped = escapeIndexes.indexOf(index + 1) >= 0;
if (isCurrentCharEscaped) {
if (!isPrevCharEscaped) {
result = "'" + result
}
if (!isNextCharEscaped) {
result += "'"
}
}
return result
}).join("");
return pattern
};
var getFormat = function(formatter) {
var processedIndexes = [],
defaultPattern = formatValue(new Date(2009, 8, 8, 6, 5, 4), formatter),
patternPositions = defaultPattern.split("").map(function(_, index) {
return index
}),
result = defaultPattern,
replacedPatterns = {},
datePatterns = [{
date: new Date(2009, 8, 8, 6, 5, 4, 100),
pattern: "S"
}, {
date: new Date(2009, 8, 8, 6, 5, 2),
pattern: "s"
}, {
date: new Date(2009, 8, 8, 6, 2, 4),
pattern: "m"
}, {
date: new Date(2009, 8, 8, 18, 5, 4),
pattern: "H",
isDigit: true
}, {
date: new Date(2009, 8, 8, 2, 5, 4),
pattern: "h",
isDigit: true
}, {
date: new Date(2009, 8, 8, 18, 5, 4),
pattern: "a",
isDigit: false
}, {
date: new Date(2009, 8, 1, 6, 5, 4),
pattern: "d"
}, {
date: [new Date(2009, 8, 2, 6, 5, 4), new Date(2009, 8, 3, 6, 5, 4), new Date(2009, 8, 4, 6, 5, 4)],
pattern: "E"
}, {
date: new Date(2009, 9, 6, 6, 5, 4),
pattern: "M"
}, {
date: new Date(1998, 8, 8, 6, 5, 4),
pattern: "y"
}];
if (!result) {
return
}
datePatterns.forEach(function(test) {
var diff = getDifference(defaultPattern, formatValue(test.date, formatter), processedIndexes, test.isDigit),
pattern = "M" === test.pattern && !replacedPatterns.d ? "L" : test.pattern;
result = replaceChars(result, diff, pattern, patternPositions);
replacedPatterns[pattern] = diff.length
});
result = escapeChars(result, defaultPattern, processedIndexes, patternPositions);
if (processedIndexes.length) {
return result
}
};
exports.getFormat = getFormat;