How can I execute the current line as Vim EX commands?

Question

Say I\'m editing my _vimrc file and I\'ve just added a couple of lines, for instance a new key mapping. I don\'t want to reload the whole file (:so %

Answer 1

For that purpose, I have defined the following commands and mappings:

":[range]Execute    Execute text lines as ex commands.
"                   Handles |line-continuation|.
" The same can be achieved via "zyy@z (or yy@" through the unnamed register);
" but there, the ex command must be preceded by a colon (i.e. :ex)
command! -bar -range Execute silent ,yank z | let @z = substitute(@z, '\n\s*\\', '', 'g') | @z

" [count]e  Execute current [count] line(s) as ex commands, then
" {Visual}e jump to the following line (to allow speedy sequential
"                   execution of multiple lines).
nnoremap  e :Executeexecute 'normal! ' . v:count1 . 'j'
xnoremap  e :Executeexecute 'normal! ' . v:count1 . 'j'