diff --git a/.gitignore b/.gitignore
index c83772c..34e39af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 scpt
-cmd/scpt/scpt
 .idea/
\ No newline at end of file
diff --git a/ast.go b/ast.go
index 9c74b0a..6b41421 100644
--- a/ast.go
+++ b/ast.go
@@ -1,9 +1,34 @@
 package scpt
 
+import (
+	"reflect"
+	"strings"
+)
+
 type AST struct {
 	Commands []*Command `@@*`
 }
 
+func (ast *AST) Execute() {
+	for _, cmd := range ast.Commands {
+		if cmd.Vars != nil {
+			for _, Var := range cmd.Vars {
+				val := ParseValue(Var.Value)
+				if strings.Contains(reflect.TypeOf(val).String(), ".FuncCall") {
+					Call := val.(*FuncCall)
+					Vars[Var.Key], _ = CallFunction(Call)
+				} else {
+					Vars[Var.Key] = val
+				}
+			}
+		} else if cmd.Calls != nil {
+			for _, Call := range cmd.Calls {
+				_, _ = CallFunction(Call)
+			}
+		}
+	}
+}
+
 type Command struct {
 	Vars  []*Var      `( @@`
 	Calls []*FuncCall `| @@ )`
diff --git a/scpt.go b/scpt.go
index bfd6187..6d7a2e0 100644
--- a/scpt.go
+++ b/scpt.go
@@ -8,7 +8,6 @@ import (
 	"io"
 	"os"
 	"os/exec"
-	"reflect"
 	"strings"
 )
 
@@ -39,33 +38,13 @@ func Parse(r io.Reader) (*AST, error) {
 		return nil, err
 	}
 	ast := &AST{}
-	err = parser.Parse("", r, ast)
+	err = parser.Parse(r, ast)
 	if err != nil {
 		return nil, err
 	}
 	return ast, nil
 }
 
-func Execute(ast AST) {
-	for _, cmd := range ast.Commands {
-		if cmd.Vars != nil {
-			for _, Var := range cmd.Vars {
-				val := ParseValue(Var.Value)
-				if strings.Contains(reflect.TypeOf(val).String(), ".FuncCall") {
-					Call := val.(*FuncCall)
-					Vars[Var.Key], _ = CallFunction(Call)
-				} else {
-					Vars[Var.Key] = val
-				}
-			}
-		} else if cmd.Calls != nil {
-			for _, Call := range cmd.Calls {
-				_, _ = CallFunction(Call)
-			}
-		}
-	}
-}
-
 func ParseValue(val *Value) interface{} {
 	if val.String != nil {
 		return strings.Trim(*val.String, `"`)