use native function

Author: vkovec

Assets/Integrations/Autodesk/maya/scripts/unityCommands.mel

@@ -129,25 +129,6 @@ proc string checkNamespaceNeedsUpdate(string $unitySet, string $unityFbxNamespac
     return $unityFbxNamespace;
 }
 
-global proc string formValidObjectName(string $input)
-{
-    string $output = "";
-    for ($n = 1 ; $n < size($input)+1 ; $n++)
-    {
-        string $char = `substring $input $n $n`;
-        // if starting with a number, add underscore before number
-        if ($n == 1 && `match "[0-9]" $char` != "")
-            $output += ("_"+$char);
-        // if character is alphanumeric, or underscore, add character
-        else if (`match "[a-zA-Z0-9\_]" $char` != "")
-            $output += $char;
-        // otherwise replace with underscore
-        else
-            $output += "_";
-    }
-    return $output;
-}
-
 proc importFile(string $filePathStr){
     // get the global variables
     global string $UnityExportSets[];
@@ -173,7 +154,7 @@ proc importFile(string $filePathStr){
 
         $fileNameWithoutExt = match("[^@]+", $fileNameWithoutExt);
     }
-    $fileNameWithoutExt = formValidObjectName($fileNameWithoutExt);    
+    $fileNameWithoutExt = formValidObjectName($fileNameWithoutExt);
 
     $unityExportSet = `format -stringArg $fileNameWithoutExt $UnityExportSetNameFormat`;