On 04/02/2013 05:24 PM, Daniel J Sebald wrote:
When copying a command into the IDE/GUI terminal that has a lot of non
alpha-numeric characters such as parentheses and brackets, the
processing is really slow. Something like this:
qtinputdlg ({"Einstein:","Newton:","Planck:"}, "Most General Example",
[1 7; 1 11; 1 20], {"E = m c^2","F = G m1 m2 / r^2","B = 2 h v^3 / (c^2
(e^(h v/(k T)) - 1))"})
takes several seconds to process. A stream of text zips in up to the
closing bracket, then stops for a half second. Then another stream of
text until a bracket is encountered. Etc.
Copying into a shell command line is speedy in the most recent source.
However, I think I've seen a similar sort of thing even when not running
the GUI on a version from a couple weeks ago.
Does anyone know why that is happening?
There are a couple of possibilities. One is a bug in readline that we've
discussed before. It's been fixed in the readline sources, and a patch
is available, but I don't think there is a released version of readline
with the fix quite yet. A new readline and bash should be happening
relatively soon though.
However, the bug in readline would affect all text if there is a
readline event hook installed. So if you are seeing the problem only
when there are parens or brackets, then maybe it is a delay while
readline does paren and bracket matching?
What happens if you put
set blink-matching-paren off
in your ~/.inputrc file and restart Octave?