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Merge pull request #26 from avoidwork/edge
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,69 +1,126 @@ | ||
| (function (global) { | ||
| ( function ( global ) { | ||
| "use strict"; | ||
|
|
||
| var base = 10, | ||
| sizes = [["B", 1], ["Kb", 128], ["KB", 1024], ["Mb", 131072], ["MB", 1.049e+6], ["Gb", 1.342e+8], ["GB", 1.074e+9], ["Tb", 1.374e+11], ["TB", 1.1e+12], ["Pb", 1.407e+14], ["PB", 1.126e+15]], | ||
| nth = sizes.length, | ||
| regex = /\.(.*)/, | ||
| bit = /b$/, | ||
| zero = /^0$/; | ||
| var base = 10, | ||
| right = /\.(.*)/, | ||
| bit = /b$/, | ||
| zero = /^0$/, | ||
| options = { | ||
| all : { | ||
| increments : [["B", 1], ["Kb", 128], ["KB", 1024], ["Mb", 131072], ["MB", 1.049e+6], ["Gb", 1.342e+8], ["GB", 1.074e+9], ["Tb", 1.374e+11], ["TB", 1.1e+12], ["Pb", 1.407e+14], ["PB", 1.126e+15]], | ||
| nth : 11 | ||
| }, | ||
| bitless : { | ||
| increments : [["B", 1], ["KB", 1024], ["MB", 1.049e+6], ["GB", 1.074e+9], ["TB", 1.1e+12], ["PB", 1.126e+15]], | ||
| nth : 6 | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * filesize | ||
| * | ||
| * @param {Mixed} arg String, Int or Float to transform | ||
| * @param {Number} pos [Optional] Position to round to, defaults to 2 if short is ommitted | ||
| * @param {Boolean} short [Optional] Shorthand output, similar to "ls -lh", overrides pos to 1 | ||
| * @param {Boolean} bits [Optional] Determines if `bit` sizes are used for result calculation, default is true | ||
| * @return {String} Readable file size String | ||
| */ | ||
| function filesize (arg) { | ||
| var result = "", | ||
| i = nth, | ||
| neg, num, pos, short, size, suffix, z; | ||
| bits = true, | ||
| i, neg, num, pos, short, size, sizes, suffix, z; | ||
|
|
||
| if (arguments[2] !== undefined) { | ||
| // Determining arguments | ||
| if (arguments[3] !== undefined) { | ||
| pos = arguments[1]; | ||
| short = arguments[2]; | ||
| bits = arguments[3]; | ||
| } | ||
| else typeof arguments[1] === "boolean" ? short = arguments[1] : pos = arguments[1]; | ||
| else { | ||
| typeof arguments[1] === "boolean" ? short = arguments[1] : pos = arguments[1]; | ||
|
|
||
| if (isNaN(arg) || (pos !== undefined && isNaN(pos))) throw Error("Invalid arguments"); | ||
| if ( typeof arguments[2] === "boolean" ) { | ||
| bits = arguments[2]; | ||
| } | ||
| } | ||
|
|
||
| if ( isNaN( arg ) || ( pos !== undefined && isNaN( pos ) ) ) { | ||
| throw Error("Invalid arguments"); | ||
| } | ||
|
|
||
| short = (short === true); | ||
| pos = short ? 1 : (pos === undefined ? 2 : parseInt(pos, base)); | ||
| num = Number(arg); | ||
| neg = (num < 0); | ||
| short = ( short === true ); | ||
| bits = ( bits === true ); | ||
| pos = short ? 1 : ( pos === undefined ? 2 : parseInt( pos, base ) ); | ||
| num = Number( arg ); | ||
| neg = ( num < 0 ); | ||
|
|
||
| // Flipping a negative number to determine the size | ||
| if (neg) num = -num; | ||
| if ( neg ) { | ||
| num = -num; | ||
| } | ||
|
|
||
| // Zero is now a special case because bytes divide by 1 | ||
| if (num === 0) { | ||
| if (short) pos = 0; | ||
| result = Number(0).toFixed(pos) + "B"; | ||
| if ( num === 0 ) { | ||
| if ( short ) { | ||
| pos = 0; | ||
| } | ||
|
|
||
| result = Number( 0 ).toFixed( pos ) + "B"; | ||
| } | ||
| else { | ||
| while (i--) { | ||
| if ( bits ) { | ||
| sizes = options.all.increments; | ||
| i = options.all.nth; | ||
| } | ||
| else { | ||
| sizes = options.bitless.increments; | ||
| i = options.bitless.nth; | ||
| } | ||
|
|
||
| while ( i-- ) { | ||
| size = sizes[i][1]; | ||
| suffix = sizes[i][0]; | ||
| if (num >= size) { | ||
| result = (num / size).toFixed(pos); | ||
| if (short) { | ||
| if (bit.test(suffix)) suffix = suffix.toLowerCase(); | ||
| suffix = suffix.charAt(0); | ||
| z = regex.exec(result); | ||
| if (z !== null && z[1] !== undefined && zero.test(z[1])) result = parseInt(result, base); | ||
|
|
||
| if ( num >= size ) { | ||
| result = ( num / size ).toFixed( pos ); | ||
|
|
||
| if ( short ) { | ||
| if ( bits && bit.test( suffix ) ) { | ||
| suffix = suffix.toLowerCase(); | ||
| } | ||
|
|
||
| suffix = suffix.charAt( 0 ); | ||
| z = right.exec( result ); | ||
|
|
||
| if ( z !== null && z[1] !== undefined && zero.test( z[1] ) ) { | ||
| result = parseInt( result, base ); | ||
| } | ||
| } | ||
|
|
||
| result += suffix; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return (neg ? "-" : "") + result; | ||
| // Decorating a 'diff' | ||
| if ( neg ) { | ||
| result = "-" + result; | ||
| } | ||
|
|
||
| return result; | ||
| }; | ||
|
|
||
| if (typeof exports !== "undefined") module.exports = filesize; | ||
| else if (typeof define === "function") define(function () { return filesize; }); | ||
| else global.filesize = filesize; | ||
| })(this); | ||
| // CommonJS, AMD, script tag | ||
| if ( typeof exports !== "undefined" ) { | ||
| module.exports = filesize; | ||
| } | ||
| else if ( typeof define === "function" ) { | ||
| define( function () { | ||
| return filesize; | ||
| }); | ||
| } | ||
| else { | ||
| global.filesize = filesize; | ||
| } | ||
| })( this ); |
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