5

If I type:

:echoerr "test error"

I simply get the message printed (with red background):

test error

However, inside a function:

function! Printerror()
  echoerr "test error"
endfunction

I get additional (and in this particular case) unwanted extra lines:

Error detected while processing function Printerror:
line    1:
test error
Press ENTER or type command to continue

How can I supress the additional lines produced in a function?

  • See also : h hit-enter and :h cmdheight – VanLaser Sep 25 '16 at 10:15
5

The solution is described in the manual:

If you just want a highlighted message use :echohl. And to get a beep: :exe "normal \<Esc>"

Thus:

function! PrintError(msg) abort
    execute 'normal! \<Esc>'
    echohl ErrorMsg
    echomsg a:msg
    echohl None
endfunction
  • Hmm, why doesn't :echohl "foo" work in command mode? – Tom Hale Sep 25 '16 at 10:35
  • 2
    @TomHale, because you didn't read :help :echohl. And it's "command-line mode", not "command mode". – romainl Sep 25 '16 at 10:41

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