Is it possible to clear message history in gVIM?

Question

In gVIM i use echomsg command to output debug messages from my scripts (for debug purpose) and messages command to view them. All works fine, but vim messanging facility displays all messages - from all scripts, system, notifications etc. Is it some way to clear messages list (manually before i perform action i want to debug) so i can easily see messages from my script? Or maybe some filter i can use to view only my messages?

Answer 1

as of vim 7.4.1735 you can do :messages clear to clear the history.

Answer 2

AFAIK you can’t clear message history, but you can use your own command instead of :echom, for example:

command -nargs=1 -bar Echo :let g:messages=get(g:, 'messages', [])+[<q-args>]

or, maybe better,

command -nargs=1 -bar Echo :let g:messages=get(g:, 'messages', [])+[eval(<args>)] | echom <args>

First one is not evaluating its argument and thus cannot be a replacement of :echom, second is, but note that while with :echom :echom 1 2 and :echom 1.' '.2 produces the same output, with :Echo first will be an error forcing you to use the second form.

Both commands will put messages into g:messages variable, creating it if necessary. To clear history simply use

unlet g:messages