I have this in my vimrc to comment/uncomment lines or blocks of text in visual with the characters - (comment) and _ (uncomment)
Have a look and you'll get the idea. You have to define the symbol for the extension of the file you're working on """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" " Per a comentar/descomentar blocs de text sencers " "-" comenta i "_" el descomenta. Cal emprar-ho en " mode "visual" function! SimboletComentarZsh() map - :s/^/# /<CR>:nohlsearch<CR> map _ :s/^\s*# \=//<CR>:nohlsearch<CR> set comments=:# endfunction function! SimboletComentarFortran() map - :s/^/C /<CR>:nohlsearch<CR> map _ :s/^\s*C \=//<CR>:nohlsearch<CR> set comments=:C endfunction function! SimboletComentarLatex() map - :s/^/% /<CR>:nohlsearch<CR> map _ :s/^\s*% \=//<CR>:nohlsearch<CR> set comments=:% endfunction " Ací definim el tipus de "comment" segons el fitxer... autocmd FileType zsh call SimboletComentarZsh() autocmd FileType python call SimboletComentarZsh() autocmd FileType perl call SimboletComentarZsh() autocmd FileType sh call SimboletComentarZsh() autocmd FileType octave call SimboletComentarZsh() autocmd FileType java call SimboletComentarJava() autocmd FileType fortran call SimboletComentarFortran() autocmd FileType tex call SimboletComentarLatex() """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
