Having to provide both a transcript and its output when describing a problem is frustrating. If you can run transcript output directly, this duplication becomes unnecessary.

There are a few things that need to change to allow this:

• the parser needs to ignore unison:added-by-ucm blocks;
• the ucm blocks added by the pretty-printer after unison blocks need a similar suffix so the parser can ignore them;
• the ucm block parser needs to be able to skip over command output;
• pretty-printed blocks need to preserve their :-separated flags;

and probably more.

Also, this can’t be expected to work with transcripts that use :hide:all.