Initial sources for planned 2.0 luaj vm release. Most interpreter features and library functions working.

examples/jse/SampleJseMain.java

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+
+
+import org.luaj.vm2.*;
+import org.luaj.vm2.lib.*;
+import org.luaj.vm2.compiler.LuaC;
+
+public class SampleJseMain {
+	
+	
+	public static void main(String[] args) throws Exception {
+		String script = "examples/lua/hello.lua";
+		
+		// create an environment to run in
+ 		LuaC.install();
+		LuaValue _G = JsePlatform.standardGlobals();
+		_G.get("dofile").call( LuaValue.valueOf(script) );
+	}
+
+
+}

examples/jse/ScriptEngineSample.java

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+
+
+import javax.script.Bindings;
+import javax.script.Compilable;
+import javax.script.CompiledScript;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineFactory;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+public class ScriptEngineSample {
+    
+    public static void main(String [] args) {
+        ScriptEngineManager sem = new ScriptEngineManager();
+        ScriptEngine e = sem.getEngineByExtension(".lua");
+        ScriptEngineFactory f = e.getFactory();
+        System.out.println( "Engine name: " +f.getEngineName() );
+        System.out.println( "Engine Version: " +f.getEngineVersion() );
+        System.out.println( "LanguageName: " +f.getLanguageName() );
+        System.out.println( "Language Version: " +f.getLanguageVersion() );
+        String statement = f.getOutputStatement("\"hello, world\"");
+        System.out.println(statement);
+        try {
+            e.eval(statement);
+            
+            e.put("x", 25);
+            e.eval("y = math.sqrt(x)");
+            System.out.println( "y="+e.get("y") );
+
+            e.put("x", 2);
+            e.eval("y = math.sqrt(x)");
+            System.out.println( "y="+e.get("y") );
+            
+            CompiledScript cs = ((Compilable)e).compile("y = math.sqrt(x); return y");
+            Bindings b = e.createBindings();
+            b.put("x", 3);
+            System.out.println( "eval: "+cs.eval(b) );
+            System.out.println( "y="+b.get("y") );
+            
+            try {
+            	e.eval("\n\nbogus example\n\n");
+            } catch ( ScriptException se ) {
+            	System.out.println("script threw ScriptException as expected, message is '"+se.getMessage()+"'");
+            }
+        } catch (ScriptException ex) {
+            ex.printStackTrace();
+        }
+    }
+
+}