[GSoC uni] Small increment.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/uni@12900 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/utils/string_utils.cpp

@@ -110,6 +110,23 @@ namespace StringUtils
         return filename;
     }   // getExtension
 
+    //-------------------------------------------------------------------------
+    /** Checks if the input string is not empty. ( = has characters different from a space)
+     */
+    bool notEmpty(const irr::core::stringw& input)
+    {
+        const int size = input.size();
+        int nonEmptyChars = 0;
+        for (int n=0; n<size; n++)
+        {
+            if (input[n] != L' ')
+            {
+                nonEmptyChars++;
+            }
+        }
+        return (nonEmptyChars > 0);
+    }   // getExtension
+
     //-------------------------------------------------------------------------
     /** Returns a string converted to upper case.
      */