more nashorn nonsense

assets/JS_INIT.js

@@ -272,8 +272,12 @@ if ('function' !== typeof Array.prototype.reduceRight) {
 //  NOTE TO PROGRAMMERS: this JS_INIT script does not, and must not be invoked with strict mode  //
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
+// disabling and re-installing JS/Nashorn functions
+// alse see: https://wiki.openjdk.java.net/display/Nashorn/Nashorn+extensions
 load = undefined;
 loadWithNewGlobal = undefined;
+exit = undefined;
+quit = undefined;
 var eval = function(s) { // installing new eval function
     return Function('"use strict";return(function(){'+s+'}())')();
 }

assets/tbas/basic.js

@@ -20,13 +20,13 @@ if (system.maxmem() < 8192) {
     throw new Error("Out of memory");
 }
 
-var vmemsize = system.maxmem() - 5236;
+let vmemsize = system.maxmem() - 5236;
 
-var cmdbuf = []; // index: line number
-var cmdbufMemFootPrint = 0;
-var prompt = "Ok";
+let cmdbuf = []; // index: line number
+let cmdbufMemFootPrint = 0;
+let prompt = "Ok";
 
-var lang = {};
+let lang = {};
 lang.badNumberFormat = "Illegal number format";
 lang.badOperatorFormat = "Illegal operator format";
 lang.badFunctionCallFormat = "Illegal function call";
@@ -63,18 +63,18 @@ function getUsedMemSize() {
 }
 
 
-var reLineNum = /^[0-9]+ /;
+let reLineNum = /^[0-9]+ /;
 //var reFloat = /^([\-+]?[0-9]*[.][0-9]+[eE]*[\-+0-9]*[fF]*|[\-+]?[0-9]+[.eEfF][0-9+\-]*[fF]?)$/;
 //var reDec = /^([\-+]?[0-9_]+)$/;
 //var reHex = /^(0[Xx][0-9A-Fa-f_]+)$/;
 //var reBin = /^(0[Bb][01_]+)$/;
 
 // must match partial
-var reNumber = /([0-9]*[.][0-9]+[eE]*[\-+0-9]*[fF]*|[0-9]+[.eEfF][0-9+\-]*[fF]?)|([0-9_]+)|(0[Xx][0-9A-Fa-f_]+)|(0[Bb][01_]+)/;
-var reOps = /\^|;|\*|\/|\+|\-|[<>=]{1,2}/;
+let reNumber = /([0-9]*[.][0-9]+[eE]*[\-+0-9]*[fF]*|[0-9]+[.eEfF][0-9+\-]*[fF]?)|([0-9_]+)|(0[Xx][0-9A-Fa-f_]+)|(0[Bb][01_]+)/;
+let reOps = /\^|;|\*|\/|\+|\-|[<>=]{1,2}/;
 
-var reNum = /[0-9]+/;
-var tbasexit = false;
+let reNum = /[0-9]+/;
+let tbasexit = false;
 
 println("Terran BASIC 1.0  "+vmemsize+" bytes free");
 println(prompt);
@@ -219,7 +219,7 @@ function threeArgNonNullNumeric(lnum, args, action) {
     if (isNaN(resolvedargs2)) throw lang.illegalType(lnum, resolvedargs2.value);
     return action(resolvedargs0, resolvedargs1, resolvedargs2);
 }
-var basicInterpreterStatus = {};
+let basicInterpreterStatus = {};
 basicInterpreterStatus.gosubStack = [];
 basicInterpreterStatus.variables = {};
 basicInterpreterStatus.defuns = {};
@@ -425,7 +425,7 @@ basicInterpreterStatus.builtin = {
 }
 };
 Object.freeze(basicInterpreterStatus.builtin);
-var basicFunctions = {};
+let basicFunctions = {};
 basicFunctions._isNumber = function(code) {
     return (code >= 0x30 && code <= 0x39) || code == 0x5F;
 };
@@ -1398,19 +1398,19 @@ basicFunctions.run = function(args) { // RUN function
 };
 Object.freeze(basicFunctions);
 while (!tbasexit) {
-    var line = sys.read();
+    let line = sys.read();
     line = line.trim();
 
     cmdbufMemFootPrint += line.length;
 
     if (reLineNum.test(line)) {
-        var i = line.indexOf(" ");
+        let i = line.indexOf(" ");
         cmdbuf[line.slice(0, i)] = line.slice(i + 1, line.length);
     }
     else if (line.length > 0) {
         cmdbufMemFootPrint -= line.length;
         try {
-            var cmd = line.split(" ");
+            let cmd = line.split(" ");
             serial.printerr(cmd[0].toLowerCase());
             basicFunctions[cmd[0].toLowerCase()](cmd);
         }
@@ -1420,4 +1420,6 @@ while (!tbasexit) {
         }
         println(prompt);
     }
-}
+}
+
+return 0;

src/net/torvald/tsvm/VMGUI.kt

@@ -36,6 +36,8 @@ class VMGUI(val appConfig: LwjglApplicationConfiguration) : ApplicationAdapter()
             0
         )
 
+        Gdx.input.inputProcessor = vm.getIO()
+
         batch = SpriteBatch()
         camera = OrthographicCamera(appConfig.width.toFloat(), appConfig.height.toFloat())
         camera.setToOrtho(false)
@@ -78,9 +80,6 @@ class VMGUI(val appConfig: LwjglApplicationConfiguration) : ApplicationAdapter()
             vmRunner.evalGlobal(bios + "\n" + tvgl)
             vmRunner.executeCommand(prg)
         }
-
-
-        Gdx.input.inputProcessor = vm.getIO()
     }
 
     private var updateAkku = 0.0