kclem

" Put this in your ~/.vimrc
" Define the function to reverse complement a DNA sequence
" Run by calling <Leader>rc from normal mode. By default <Leader> is "\" so press \rc (you only have 1 second after \ to press rc)
function! ReverseComplement()
    " Save the current cursor position
    let save_cursor = getpos('.')

    " Get the word under the cursor
    let word = expand('<cword>')