jdataview - npm Package Compare versions

Comparing version 2.3.0 to 2.3.1

package.json

 {
 	"name": "jdataview",
-	"version": "2.3.0",
+	"version": "2.3.1",
 	"description": "A unique way to work with a binary file in the browser and the server.",
 	"keywords": ["buffer", "binary", "data", "file", "dataview", "read", "write", "manipulation"],
-	"homepage": "http://blog.vjeux.com/2011/javascript/jdataview-read-binary-file.html",
+	"homepage": "http://jDataView.github.io/",
 	"author": "Vjeux <[e-mail]> (http://blog.vjeux.com/)",
@@ -8,0 +8,0 @@ "contributors": [

src/jdataview.js

@@ -175,3 +175,7 @@ //
 					if (!(buffer instanceof ArrayBuffer)) {
-						buffer = buffer instanceof Uint8Array ? buffer.buffer : new Uint8Array(buffer).buffer;
+						buffer = new Uint8Array(buffer).buffer;
+						// bug in Node.js <= 0.8:
+						if (buffer instanceof Uint8Array) {
+							buffer = new Uint8Array(arrayFrom(buffer, true)).buffer;
+						}
 					}
@@ -253,2 +257,3 @@ } else
 	_offset: 0,
+	_bitOffset: 0,
 
@@ -292,7 +297,4 @@ compatibility: compatibility,
 		this._offset = byteOffset + dataTypes[type];
-
 		var nodeName = nodeNaming[type] + ((type === 'Int8' || type === 'Uint8') ? '' : littleEndian ? 'LE' : 'BE');
-
 		byteOffset += this.byteOffset;
-
 		return isReadAction ? this.buffer['read' + nodeName](byteOffset) : this.buffer['write' + nodeName](value, byteOffset);
@@ -467,3 +469,3 @@ },
 
-	// Compatibility functions on a String Buffer
+	// Compatibility functions
 
@@ -566,2 +568,29 @@ _getFloat64: function (byteOffset, littleEndian) {
 
+	getSigned: function (bitLength, byteOffset) {
+		var shift = 32 - bitLength;
+		return (this.getUnsigned(bitLength, byteOffset) << shift) >> shift;
+	},
+
+	getUnsigned: function (bitLength, byteOffset) {
+		var startBit = (defined(byteOffset, this._offset) << 3) + this._bitOffset,
+			endBit = startBit + bitLength,
+			start = startBit >>> 3,
+			end = (endBit + 7) >>> 3,
+			b = this._getBytes(end - start, start, true),
+			value = 0;
+
+		/* jshint boss: true */
+		if (this._bitOffset = endBit & 7) {
+			this._bitOffset -= 8;
+		}
+
+		for (var i = 0, length = b.length; i < length; i++) {
+			value = (value << 8) | b[i];
+		}
+
+		value >>>= -this._bitOffset;
+
+		return bitLength < 32 ? (value & ~(-1 << bitLength)) : value;
+	},
+
 	_setBinaryFloat: function (byteOffset, value, mantSize, expSize, littleEndian) {
@@ -568,0 +597,0 @@ var signBit = value < 0 ? 1 : 0,

No alert changes

Improved metrics

Total package byte prevSize

33833

2.42%

Lines of code

593

4.59%

No dependency changes