[Seqan-dev] small patch for CommandLineParser

[Konstantin Okonechnikov <k.okonechnikov@gmail.com>]

Hi!
The patch file is attached.

The patch feature: show an error message when the required number of
command line parameters doesn't match the number of given parameters.

Best regards,
  Konstantin

Index: core/include/seqan/misc/misc_cmdparser.h
===================================================================
--- core/include/seqan/misc/misc_cmdparser.h	(revision 11051)
+++ core/include/seqan/misc/misc_cmdparser.h	(working copy)
@@ -1425,12 +1425,19 @@
         help(me, estream);
         return false;
     }
-	if (argc == 1 && me.required_arguments > 0)
+	if ( length(me.arguments) < me.required_arguments )
 	{
-		shortHelp(me, estream);	// print short help and exit
-		return 0;
+        if (argc == 1) {
+            shortHelp(me, estream);	// print short help and exit
+	    } else { 
+            _streamWrite(estream, me.appName);      
+            _streamWrite(estream, ": number of required arguments is ");
+            _streamPutInt(estream, me.required_arguments);  
+            _streamWrite(estream, "\n");
+		}
+        return false;
 	}
-	return _allMandatorySet(me) && (length(me.arguments) >= me.required_arguments);
+	return _allMandatorySet(me);
 }
 
 inline bool