How to know if the current buffer is an output buffer?

[exelotl]

Some time ago I mapped ctrl+w to close the current buffer. As a convenience, it will unsplit the view if it detects that you closed the output buffer (since the output buffer always appears in a new pane which is annoying to close.)

local ctl = function (k)
	return (not OSX and "ctrl+" or "cmd+")..k
end

-- closing the message buffer will hide the view
keys[ctl"w"] = function ()
	local label = buffer.tab_label
	local closed = buffer:close()
	if closed and label == "[Message Buffer]" then
		view:unsplit()
	end
end

Since updating to Textadept 12.x, this fails because buffer.tab_label is write only.

Is there any other way to make this work?

[rgieseke]

You could check the buffer._type.

[rgieseke]

Not sure if it's documented, but it's tested here (and it's also used in Textredux):

textadept/test/test.lua

Line 1024 in 89dfa1e

assert(buffer._type ~= _L['[Message Buffer]'], 'switched to message buffer')

[exelotl]

Ah brilliant! Yeah, I couldn't find it in the docs, but it works:

-- closing the message buffer will hide the view
keys[ctl"w"] = function ()
	local type = buffer._type
	local closed = buffer:close()
	if closed and type == "[Output Buffer]" then
		view:unsplit()
	end
end

Thanks a bunch!