Here here, warn
belongs on the list!
My app is a Perl Tk app and has grown rather large. Since I sometimes will have to rerun little bits of debugging steps in the future, I leave my warn statements in the code, just comment them out when I don't need them. The trick is to start all such debug-flavor warn messages in column 0. This makes them easy to distinguish from real warn statements which are indented further into the code. After using the warning for the first time, comment away the warning with an initial # sign.
When I want to reuse a given warning, I uncomment the line, and when I'm ready to turn them off again, finding them is easy in vim because I only have to look for warn at the beginning of lines, i.e. I search for ^warn. When I find an uncommented warn, I do a I# to comment it away again, do a n to find the next uncommented warning and do a dot command to repeat the "comment away" command.
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