diff --git a/bin/main b/bin/main
index 0babf28..4dae3b2 100755
Binary files a/bin/main and b/bin/main differ
diff --git a/in/simple.asl b/in/simple.asl
index 36dd43e..5b7f06b 100644
--- a/in/simple.asl
+++ b/in/simple.asl
@@ -1,17 +1,24 @@
 var _a = 1;
 var _b = 2;
 
-func somefunc(_x, _y, _z) {
+func myFunc(_x, _y) {
     if _x < _y {
-        hint(_z);
+        myFunc(_y, _x);
     }
 }
 
 if _a < _b {
-    somefunc(1, "two", 3);
-}
-else{
-    _a = 3;
+    if _b < _a {
+        myFunc(_a, _b+9-(2/2));
+    }
 }
 
-hint("this is a hint");
+if (_a+_b)/2 > 10 {
+    hint("a");
+} else {
+    myFunc("multiple", "statements");
+    hint("b");
+}
+
+myFunc(_a, _b);
+myFunc(_a, _b);
diff --git a/in/statements.asl b/in/statements.asl
new file mode 100644
index 0000000..e41902c
--- /dev/null
+++ b/in/statements.asl
@@ -0,0 +1,6 @@
+if (4 < (5+5)/2 || ((3-3)*10-5)) {
+    hint("hallo welt");
+}
+else {
+    hint("no");
+}
diff --git a/pkg/linux_amd64/asl.a b/pkg/linux_amd64/asl.a
index 7b549c8..f204457 100644
Binary files a/pkg/linux_amd64/asl.a and b/pkg/linux_amd64/asl.a differ
diff --git a/src/asl/parser.go b/src/asl/parser.go
index e5c78b4..bfc96aa 100644
--- a/src/asl/parser.go
+++ b/src/asl/parser.go
@@ -35,8 +35,8 @@ func parseVar() {
     
     if accept("=") {
         next()
-        appendOut(" = "+get().token)
-        next()
+        appendOut(" = ")
+        parseExpression()
     }
     
     appendOut(";\n")
@@ -46,7 +46,7 @@ func parseVar() {
 func parseIf() {
     expect("if")
     appendOut("if (")
-    parseCondition()
+    parseExpression()
     appendOut(") then {\n")
     expect("{")
     parseBlock()
@@ -63,17 +63,6 @@ func parseIf() {
     appendOut("};\n")
 }
 
-func parseCondition() {
-    for !accept("{") {
-        appendOut(get().token)
-        next()
-        
-        if !accept("{") {
-            appendOut(" ")
-        }
-    }
-}
-
 func parseFunction() {
     expect("func")
     appendOut(get().token+" = {\n")
@@ -89,7 +78,7 @@ func parseFunction() {
 
 func parseFunctionParameter() {
     // empty parameter list
-    if accept(")") {
+    if accept("{") {
         return;
     }
     
@@ -111,7 +100,7 @@ func parseFunctionParameter() {
 func parseStatement() {
     // empty block
     if accept("}") {
-        return;
+        return
     }
     
     // variable or function name
@@ -125,6 +114,10 @@ func parseStatement() {
         parseFunctionCall()
         appendOut(name+";\n")
     }
+    
+    if !end() {
+        parseStatement()
+    }
 }
 
 func parseAssignment() {
@@ -137,24 +130,41 @@ func parseAssignment() {
 
 func parseFunctionCall() {
     expect("(")
-    params := parseParameter()
+    appendOut("[")
+    parseParameter()
     expect(")")
     expect(";")
-    appendOut("["+params+"] call ")
+    appendOut("] call ")
 }
 
-func parseParameter() string {
-    params := ""
-    
+func parseParameter() {
     for !accept(")") {
-        params += get().token
-        next()
+        parseExpression()
         
         if !accept(")") {
             expect(",")
-            params += ", "
+            appendOut(", ")
         }
     }
-    
-    return params
+}
+
+func parseExpression() {
+    openingBrackets := 0
+    
+    for !accept(",") && !accept(";") && !accept("{") && !accept("}") && (openingBrackets != 0 || !accept(")")) {
+        current := get().token
+        appendOut(current)
+        
+        if accept("(") {
+            openingBrackets++
+        } else if accept(")") {
+            openingBrackets--
+        }
+        
+        next()
+    }
+    
+    if openingBrackets != 0 {
+        //panic("Opening bracket not closed")
+    }
 }
diff --git a/src/asl/parserHelper.go b/src/asl/parserHelper.go
index a635328..706c76d 100644
--- a/src/asl/parserHelper.go
+++ b/src/asl/parserHelper.go
@@ -17,7 +17,7 @@ func initParser(token []Token) {
 }
 
 func accept(token string) bool {
-    return tokenEqual(token, get())
+    return tokenIndex < len(tokens) && tokenEqual(token, get())
 }
 
 func expect(token string) {
@@ -40,6 +40,10 @@ func get() Token {
     return tokens[tokenIndex]
 }
 
+func end() bool {
+    return tokenIndex == len(tokens)
+}
+
 func tokenEqual(a string, b Token) bool {
     return a == b.token
 }
diff --git a/src/asl/tokenizer.go b/src/asl/tokenizer.go
index 098cd34..849faf4 100644
--- a/src/asl/tokenizer.go
+++ b/src/asl/tokenizer.go
@@ -17,11 +17,15 @@ var delimiter = []byte{'=',
     '<',
     '>',
     '!',
-    ','}
+    ',',
+    '&',
+    '|'}
 
 var keywords = []string{"var",
     "if",
-    "func"}
+    "func",
+    "true",
+    "false"}
 
 var whitespace = []byte{' ', '\n', '\t'}