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created 2002 · complexity basic · author David Thompson · version 5.7
One of my favorite macros that I use in vim (and vi) inserts a #if 0 #endif sandwich around a block of code. I always map this to the 2 key sequence ;' which is the semi-colon followed by the single quote. Look at your keyboard, you will notice these keys are adjacent to one another. I like this mapping because it's very fast, my fingers easily roll from one key to the next, obviously YMMV.
To use this mapping, go to the line of code that you want the '#if 0' to be on, type
ma to mark this line with the marker a, then move to the line that should be last line just above the '#endif' and press ;'
" insert #if 0 - #endif around block of code map ;' mz'aO<Esc>i#if 0<Esc>'zo<Esc>i#endif<Esc>
You could also modify this just a bit and make it a vmap, that way you wouldn't need to mark the beginning of the line set (though not vi compatible).
vmap ;' '<O<Esc>i#if 0<Esc>'>o<Esc>i#endif<Esc>
What about removing '#if 0...'? It should be easy to do.
I like to do this with a range argument as well - "3;'" in your case.
However, you get all this with various schemes for commenting/uncommenting code...
I tweaked it a bit by using 0<C-D> (instead of <Esc>i) and made a version for Perl by replacing '#if 0' with '=pod' and '#endif' with '=cut'.