Move default maps/variables to default.go and add print default function

defaults.go

@@ -21,6 +21,24 @@ import (
 	"strconv"
 )
 
+// Vars stores any variables set during script runtime
+var Vars = map[string]interface{}{}
+
+// FuncMap is a map of strings mapped to suitable script functions
+type FuncMap map[string]func(map[string]interface{}) (interface{}, error)
+
+// Funcs stores the functions allowed for use in a script
+var Funcs = FuncMap{
+	"str":    toString,
+	"num":    parseNumber,
+	"bool":   parseBool,
+	"break":  setBreakLoop,
+	"append": appendArray,
+	"exit":   scptExit,
+	"return": setReturn,
+	"print": scptPrint,
+}
+
 // Default function to convert unnamed argument to a string using fmt.Sprint
 func toString(args map[string]interface{}) (interface{}, error) {
 	val, ok := args[""]
@@ -101,3 +119,15 @@ func appendArray(args map[string]interface{}) (interface{}, error) {
 	// Return appended unnamed argument
 	return val, nil
 }
+
+// Print message via fmt.Println
+func scptPrint(args map[string]interface{}) (interface{}, error) {
+	// Get message
+	val, ok := args[""]
+	if !ok {
+		return nil, errors.New("print requires an unnamed argument")
+	}
+	// Print message
+	fmt.Println(val)
+	return nil, nil
+}

scpt.go

@@ -26,23 +26,6 @@ import (
 	"strings"
 )
 
-// Vars stores any variables set during script runtime
-var Vars = map[string]interface{}{}
-
-// FuncMap is a map of strings mapped to suitable script functions
-type FuncMap map[string]func(map[string]interface{}) (interface{}, error)
-
-// Funcs stores the functions allowed for use in a script
-var Funcs = FuncMap{
-	"str":    toString,
-	"num":    parseNumber,
-	"bool":   parseBool,
-	"break":  setBreakLoop,
-	"append": appendArray,
-	"exit":   scptExit,
-	"return": setReturn,
-}
-
 // AddFuncs adds all functions from the provided FuncMap into
 // the Funcs variable
 func AddFuncs(fnMap FuncMap) {