escape / after \V

[Bee]

escape / after \V

:help \V

Use of "\V" means that in the pattern after it only the backslash has
a special meaning. "very nomagic"

I have a function:

function! Visual2Highlight()
let @/ = '\c\V' . substitute(escape(@@,'/\'),'\n','\\n','g')
execute '3match User1 /' . @/ . '/'
endf
vnoremap <F12> y:call Visual2Highlight()<cr>

If / is NOT included in escape(@@,'/\') it does NOT work.

If I use the function on line(s) that have a / then I get an error:
Example: Visually select this whole line:

" multi-line visual to /highlight

Error detected while processing function Visual2Highlight:
line 2:
E488: Trailing characters: 3match User1 /\c\V" multi-line visual to /
highlight\n/

It looks like / still has special meaning.
What is happening?

Bill

[Gary Johnson]

In the 3match command, you are using / to delimit the pattern, so
any / within the pattern will have to be escaped, otherwise the
first one will terminate the pattern and the following characters
will be seen as "trailing characters".

Regards,
Gary

[Tony Mechelynck]

Or, you could use any character instead of / if there is one which you
know will not happen in the pattern, for instance

exec '3match User1 �' . @/ . '�'

if you know that there will be no � sign in what you just put into @/ in
the preceding :let statement.


Best regards,
Tony.
--
"I'd love to go out with you, but I'm staying home to work on my
cottage cheese sculpture."