code beautification

This commit is contained in:
Alexander Sulfrian 2011-11-21 11:40:17 +01:00
parent 070155a577
commit f3c9a532e0

View File

@ -33,20 +33,20 @@ var parseBits = function(data, bits, offset, callback) {
}
return result;
}
};
var parseFloat = function(data, precisionBits, exponentBits) {
var parseFloatFromBits = function(data, precisionBits, exponentBits) {
var bias = Math.pow(2, exponentBits - 1) - 1;
var sign = parseBits(data, 1);
var exponent = parseBits(data, exponentBits, 1);
if (exponent == 0)
if (exponent === 0)
return 0;
// parse mantissa
var precisionBitsCounter = 1;
var parsePrecisionBits = function(lastValue, newValue, bits) {
if (lastValue == 0) {
if (lastValue === 0) {
lastValue = 1;
}
@ -64,20 +64,20 @@ var parseFloat = function(data, precisionBits, exponentBits) {
// special cases
if (exponent == (Math.pow(2, exponentBits + 1) - 1)) {
if (mantissa == 0) {
return (sign == 0) ? Infinity : -Infinity;
if (mantissa === 0) {
return (sign === 0) ? Infinity : -Infinity;
}
return NaN;
}
// normale number
return ((sign == 0) ? 1 : -1) * Math.pow(2, exponent - bias) * mantissa;
return ((sign === 0) ? 1 : -1) * Math.pow(2, exponent - bias) * mantissa;
};
var parseBool = function(value) {
return (parseBits(value, 8) == 1);
}
};
var parseInt16 = function(value) {
if (parseBits(value, 1) == 1) {
@ -85,7 +85,7 @@ var parseInt16 = function(value) {
}
return parseBits(value, 15, 1);
}
};
var parseInt32 = function(value) {
if (parseBits(value, 1) == 1) {
@ -93,7 +93,7 @@ var parseInt32 = function(value) {
}
return parseBits(value, 31, 1);
}
};
var parseInt64 = function(value) {
if (parseBits(value, 1) == 1) {
@ -101,15 +101,15 @@ var parseInt64 = function(value) {
}
return parseBits(value, 63, 1);
}
};
var parseFloat32 = function(value) {
return parseFloat(value, 23, 8);
}
return parseFloatFromBits(value, 23, 8);
};
var parseFloat64 = function(value) {
return parseFloat(value, 52, 11);
}
return parseFloatFromBits(value, 52, 11);
};
var parseNumeric = function(value) {
var sign = parseBits(value, 16, 32);
@ -120,7 +120,7 @@ var parseNumeric = function(value) {
var weight = Math.pow(10000, parseBits(value, 16, 16));
var result = 0;
var digits = new Array();
var digits = [];
var ndigits = parseBits(value, 16);
for (var i = 0; i < ndigits; i++) {
result += parseBits(value, 16, 64 + (16 * i)) * weight;
@ -128,15 +128,15 @@ var parseNumeric = function(value) {
}
var scale = Math.pow(10, parseBits(value, 16, 48));
return ((sign == 0) ? 1 : -1) * Math.round(result * scale) / scale;
}
return ((sign === 0) ? 1 : -1) * Math.round(result * scale) / scale;
};
var parseDate = function(value) {
var sign = parseBits(value, 1);
var rawValue = parseBits(value, 63, 1);
// discard usecs and shift from 2000 to 1970
var result = new Date((((sign == 0) ? 1 : -1) * rawValue / 1000) + 946684800000);
var result = new Date((((sign === 0) ? 1 : -1) * rawValue / 1000) + 946684800000);
// add microseconds to the date
result.usec = rawValue % 1000;
@ -151,7 +151,7 @@ var parseDate = function(value) {
};
return result;
}
};
var parseArray = function(value) {
var dim = parseBits(value, 32);
@ -160,7 +160,7 @@ var parseArray = function(value) {
var elementType = parseBits(value, 32, 64);
var offset = 96;
var dims = new Array();
var dims = [];
for (var i = 0; i < dim; i++) {
// parse dimension
dims[i] = parseBits(value, 32, offset);
@ -168,8 +168,7 @@ var parseArray = function(value) {
// ignore lower bounds
offset += 32;
};
}
var parseElement = function(elementType) {
// parse content length
@ -198,7 +197,7 @@ var parseArray = function(value) {
};
var parse = function(dimension, elementType) {
var array = new Array();
var array = [];
if (dimension.length > 1) {
var count = dimension.shift();
@ -214,7 +213,7 @@ var parseArray = function(value) {
}
return array;
}
};
return parse(dims, elementType);
};
@ -246,5 +245,5 @@ var init = function(register) {
};
module.exports = {
init: init,
init: init
};