initial compare coding.

ZString.cpp

@@ -250,6 +250,10 @@ namespace coreutils {
       return strncmp(cursor, value, strlen(value)) == 0;
    }
 
+   int ZString::compare(ZString zstring) {
+      
+   }
+      
    bool ZString::equals(const char *value) {
       if (strlen(value) != length)
 	return false;