A “Ignore lines not matching this regexp” option on the File Contents Iterator would be great for file parsing.
You can obviously do it with a separate step, but then you end up with a massive log file full of lines that you don’t want to process. It’s also pretty slow: my little parser takes 1:14 to transform an 830 line file into a .ini file (just a series of regexp search/replace), then 40 seconds to process the
resulting file. I’m guessing that most of the time is GUI update, so the more processing that can take place implicitly rather than explicitly, the better…
Steve