how to return list of files with errors

[Rosendahl Sten - stro]

Hi,

I want to filter and transform the output from tasks like javac, jspc etc to
return the list of files with errors. In make I would probably use grep and
sed together and loop a script for each file found. Can this be done with
some existing Ant task?

I assume that is possible and flexible using the <script> task of course (I
prefer python), but has anyone done it?

Sten