Implement printing from lua

processor/processor.go

@@ -2,6 +2,7 @@ package processor
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
 	"strings"
@@ -239,6 +240,8 @@ modified = false
 	if err := L.DoString(helperScript); err != nil {
 		return fmt.Errorf("error loading helper functions: %v", err)
 	}
+
+	L.SetGlobal("print", L.NewFunction(printToGo))
 	return nil
 }
 
@@ -295,6 +298,20 @@ func BuildLuaScript(luaExpr string) string {
 	return fullScript
 }
 
+func printToGo(L *lua.LState) int {
+	// Get the number of arguments passed to the Lua print function
+	n := L.GetTop()
+	// Create a slice to hold the arguments
+	args := make([]interface{}, n)
+	for i := 1; i <= n; i++ {
+		args[i-1] = L.Get(i) // Get the argument from Lua stack
+	}
+	// Print the arguments to Go's stdout
+	log.Print("Lua: ")
+	log.Println(args...)
+	return 0 // No return values
+}
+
 // Max returns the maximum of two integers
 func Max(a, b int) int {
 	if a > b {