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created October 5, 2004 · complexity basic · author Jonas Lööf · version 5.7
I regularly use the quickfix window (see :help quickfix and :help :copen) to navigate compiler output. Working on a largish software system with multiple directories, the list can get quite long. I use the following entries in my vimrc to automatically fold on each subdirectory, and open folds containing errors (the string 'error:'). Additionally, zw opens also the folds containing the string 'warning:', while zq switches back to the original.
"Folding of (gnu)make output au BufReadPost quickfix setlocal foldmethod=marker au BufReadPost quickfix setlocal foldmarker=Entering\ directory,Leaving\ directory au BufReadPost quickfix map <buffer> <silent> zq zM:g/error:/normal zv<CR> au BufReadPost quickfix map <buffer> <silent> zw zq:g/warning:/normal zv<CR> au BufReadPost quickfix normal zq