September 2017 Update

Task/Binary-strings/Zkl/binary-strings.zkl

@@ -0,0 +1,21 @@
+Data(0,.Int,1,2,3) // bytes
+Data(0,String,1,2,3) // same
+Data(0,Int,"foo","bar") //-->foobar\0
+d:=Data(0,String,"foo","bar") //-->foo\0bar\0\0
+d==d // -->True: byte by byte comparison
+d.copy()  //-->clone
+d.len()  //-->8, 0 if empty
+
+d.append("1").len(); //-->10  // or d+"1"
+Data(0,Int,"foo","bar").len() //-->6
+Data(0,Int,"foo","bar").append("1").len() //-->7
+
+d.readString(4)    //-->"bar"
+d.readNthString(2) //-->"1"
+d[2,4]             //-->"o", really "o\0ba" but String sees the null
+
+while(Void!=(n:=d.findString("bar"))){ d[n,4]="hoho" }
+d.bytes() //-->L(102,111,111,0,104,111,104,111,0,49,0)
+
+d2:=Data(0,Int,"sam");
+d.append(d2).text // or d+d2