ByteBuffer - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2

ByteBuffer.js

@@ -18,10 +18,29 @@ /*!
 
-var ByteBuffer = function (org_buf,encoding) {
+var ByteBuffer = function (org_buf) {
 
     var _org_buf = org_buf;
-    var _encoding = encoding || 'utf8';
+    var _encoding = 'utf8';
     var _offset = 0;
     var _list = [];
     var _offset = 0;
+    var _endian = 'L';
 
+    //指定文字编码
+    this.encoding = function(encode){
+        _encoding = encode;
+        return this;
+    };
+    
+    //指定字节序 为BigEndian
+    this.bigEndian = function(){
+       _endian = 'B';
+        return this;
+    };
+
+    //指定字节序 为LittleEndian
+    this.littleEndian = function(){
+       _endian = 'L';
+        return this;
+    };
+
     this.byte = function(val){
@@ -40,3 +59,3 @@ if(val == undefined){
         if(val == undefined){
-           _list.push(_org_buf.readInt16LE(_offset));
+           _list.push(_org_buf['readInt16'+_endian+'E'](_offset));
            _offset+=2;
@@ -52,3 +71,3 @@ }else{
         if(val == undefined){
-           _list.push(_org_buf.readUInt16LE(_offset));
+           _list.push(_org_buf['readUInt16'+_endian+'E'](_offset));
            _offset+=2;
@@ -64,3 +83,3 @@ }else{
         if(val == undefined){
-           _list.push(_org_buf.readInt32LE(_offset));
+           _list.push(_org_buf['readInt32'+_endian+'E'](_offset));
            _offset+=4;
@@ -76,3 +95,3 @@ }else{
         if(val == undefined){
-           _list.push(_org_buf.readUInt32LE(_offset));
+           _list.push(_org_buf['readUInt32'+_endian+'E'](_offset));
            _offset+=4;
@@ -91,3 +110,3 @@ }else{
         if(val == undefined){
-           var len = _org_buf.readInt16LE(_offset);
+           var len = _org_buf['readInt16'+_endian+'E'](_offset);
            _offset+=2;
@@ -129,3 +148,3 @@ _list.push(_org_buf.toString(_encoding, _offset, _offset+len));
         if(val == undefined){
-           _list.push(_org_buf.readDoubleLE(_offset));
+           _list.push(_org_buf['readDouble'+_endian+'E'](_offset));
            _offset+=8;
@@ -141,3 +160,3 @@ }else{
         if(val == undefined){
-           _list.push(_org_buf.readFloatLE(_offset));
+           _list.push(_org_buf['readFloat'+_endian+'E'](_offset));
            _offset+=4;
@@ -153,3 +172,3 @@ }else{
         if(val == undefined){
-           _list.push(_org_buf.readDoubleLE(_offset));
+           _list.push(_org_buf['readDouble'+_endian+'E'](_offset));
            _offset+=8;
@@ -183,15 +202,15 @@ }else{
                 case Type_Short:
-                    _org_buf.writeInt16LE(_list[i].d,offset);
+                    _org_buf['writeInt16'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
                     break;
                 case Type_UShort:
-                    _org_buf.writeUInt16LE(_list[i].d,offset);
+                    _org_buf['writeUInt16'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
                     break;
                 case Type_Int32:
-                    _org_buf.writeInt32LE(_list[i].d,offset);
+                    _org_buf['writeInt32'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
                     break;
                 case Type_UInt32:
-                    _org_buf.writeUInt32LE(_list[i].d,offset);
+                    _org_buf['writeUInt32'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
@@ -201,3 +220,3 @@ break;
                     //前2个字节表示字符串长度
-                    _org_buf.writeInt16LE(_list[i].l,offset);
+                    _org_buf['writeInt16'+_endian+'E'](_list[i].l,offset);
                     offset+=2;
@@ -217,11 +236,11 @@ _org_buf.write(_list[i].d,_encoding,offset);
                 case Type_Int64:
-                    _org_buf.writeDoubleLE(_list[i].d,offset);
+                    _org_buf['writeDouble'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
                     break;
                 case Type_Float:
-                    _org_buf.writeFloatLE(_list[i].d,offset);
+                    _org_buf['writeFloat'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
                     break;
                 case Type_Double:
-                    _org_buf.writeDoubleLE(_list[i].d,offset);
+                    _org_buf['writeDouble'+_endian+'E'](_list[i].d,offset);
                     offset+=_list[i].l;
@@ -228,0 +247,0 @@ break;

package.json

@@ -9,3 +9,3 @@ {
   "main"          : "ByteBuffer.js",
-  "version"       : "0.1.1"
+  "version"       : "0.1.2"
 }

test.js

@@ -5,6 +5,7 @@ var ByteBuffer = require('./ByteBuffer');
 var sbuf = new ByteBuffer();
-var buffer = sbuf.string('abc123').int32(999).uint32(11).float(0.5)
-                       .int64(9999999).double(-0.5).short(3333).ushort(354)
-                       .byte(14)
-                       .vstring('abcd',10)//定长字符串
+var buffer = sbuf.string('abc123')//变长字符串，前两个字节表示长度
+                       .int32(-999).uint32(999).float(-0.5)
+                       .int64(9999999).double(-0.000005).short(32767).ushort(65535)
+                       .byte(255)
+                       .vstring('abcd',5)//定长字符串,不足的字节补0x00
                        .pack();
@@ -17,8 +18,18 @@
 //解包出来是一个数组
-var arr = rbuf.string().int32().uint32().float()
+var arr = rbuf.string()//变长字符串，前两个字节表示长度
+                    .int32().uint32().float()
                     .int64().double().short().ushort()
                     .byte()
-                    .vstring(null,10)//定长字符串
+                    .vstring(null,5)//定长字符串,不足的字节补0x00
                     .unpack();
 
 console.log(arr);
+
+
+//指定字符编码(默认：utf8):utf8/ascii/
+var rbuf = new ByteBuffer(buffer).encoding('ascii');
+
+//指定字节序(默认：LittleEndian)
+var rbuf = new ByteBuffer(buffer).bigEndian();
+var rbuf = new ByteBuffer(buffer).littleEndian();
+

No alert changes

Improved metrics

Total package byte prevSize

9234

increased by12.77%

Lines of code

257

increased by9.83%

No dependency changes