:echo fnamemodify(expand("%"), ":~:.")
:echo expand("%:~:.")
linenumber
# echo join([expand('%'), line(".")], ':')
nnoremap <leader>cfn :let @*=expand("%").":".line("."):echo fnamemodify(expand("%"), ":~:.")
:echo expand("%:~:.")
linenumber
# echo join([expand('%'), line(".")], ':')
nnoremap <leader>cfn :let @*=expand("%").":".line(".")