64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
/*! Char !*/
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/*[Classification]*/
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/** isUpper : Char -> Bool
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Selects upper case letters.
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**/
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/** isLower : Char -> Bool
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Selects lower case letters.
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**/
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/** isDigit : Char -> Bool
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Selects ASCII digits (0..9).
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**/
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/** isOctDigit : Char -> Bool
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Selects ASCII octal digits (0..7).
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**/
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/** isHexDigit : Char -> Bool
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Selects ASCII hexadecimal digits (0..9a..fA..F).
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**/
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/*[Conversion]*/
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/** toUpper : Char -> Char
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Convert to upper case.
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**/
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/** toLower : Char -> Char
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Convert to lower case.
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**/
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/** toLocaleUpper : Char -> Char
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Convert to upper case, according to any locale-specific case mappings.
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**/
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/** toLocaleLower : Char -> Char
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Convert to lower case, according to any locale-specific case mappings.
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**/
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/** toCode : Char -> Int
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Convert to unicode.
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**/
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/** fromCode : Int -> Char
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Convert from unicode.
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**/
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Elm.Char = function() {
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function isBetween(lo,hi) { return function(chr) {
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var c = chr.charCodeAt(0);
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return lo <= c && c <= hi;
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};
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}
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var isDigit = isBetween('0'.charCodeAt(0),'9'.charCodeAt(0));
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var chk1 = isBetween('a'.charCodeAt(0),'f'.charCodeAt(0));
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var chk2 = isBetween('A'.charCodeAt(0),'F'.charCodeAt(0));
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return {fromCode : function(c) { return String.fromCharCode(c); },
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toCode : function(c) { return c.charCodeAt(0); },
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toUpper : function(c) { return c.toUpperCase(); },
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toLower : function(c) { return c.toLowerCase(); },
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toLocaleUpper : function(c) { return c.toLocaleUpperCase(); },
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toLocaleLower : function(c) { return c.toLocaleLowerCase(); },
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isLower : isBetween('a'.charCodeAt(0),'z'.charCodeAt(0)),
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isUpper : isBetween('A'.charCodeAt(0),'Z'.charCodeAt(0)),
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isDigit : isDigit,
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isOctDigit : isBetween('0'.charCodeAt(0),'7'.charCodeAt(0)),
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isHexDigit : function(c) { return isDigit(c) || chk1(c) || chk2(c); }
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};
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}();
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