Add example for adding functions to cmd/scpt

cmd/scpt/main.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"errors"
 	"flag"
+	"fmt"
 	"gitea.arsenm.dev/Arsen6331/scpt"
 	"log"
 	"os"
@@ -23,8 +25,20 @@ func main() {
 	if err != nil {
 		log.Fatalln("Error parsing file:", err)
 	}
+	scpt.AddFuncs(scpt.FuncMap{
+		"print": scptPrint,
+	})
 	err = ast.Execute()
 	if err != nil {
 		log.Fatalln("Error executing script:", err)
 	}
 }
+
+func scptPrint(args map[string]interface{}) (interface{}, error) {
+	val, ok := args[""]
+	if !ok {
+		return nil, errors.New("print requires an unnamed argument")
+	}
+	fmt.Println(val)
+	return nil, nil
+}

test.scpt

@@ -14,8 +14,6 @@ if {3 == 3} {
     }
 }
 
-do-shell-script "echo rpt"
-
 repeat 5 times { z in
-    do-shell-script {"echo " + (string $z)}
+    print $z
 }