ANNOUNCE: GHC version 6.10.1 - EditLine /
Philip K.F. Hölzenspies
p.k.f.holzenspies at utwente.nl
Fri Nov 21 05:59:35 EST 2008
On Friday 21 November 2008 10:49:47 Jules Bean wrote:
> Philip Hölzenspies wrote:
> > Also, there are no de facto escape sequences, because special keys (like
> > function and arrow keys) have different sequences on different
> > terminals. A useful tip that may be useful to include in the wiki is an
> > easy trick that will help you find out your terminals escape sequences.
> > I usually just like to start an application that has no editline or
> > readline capabilities and press the keys. Telnet is one of my favorite
> > applications for this purpose.
> But this is abhorrent.
> The whole point of the existence of termcap and libraries which build
> upon it (ncurses, readline, editline, etc) is so that individual users
> do not have to work out what the escape sequences produced by their
> terminal are.
> Something must be very very broken : surely it is not expected behaviour
> for editline to need configuration in this way?
One can call it broken, another will say users should settle for the default
behaviour. Neither readline, nor editline *need* configuration this way,
because they do come with sensible defaults. However, some people want custom
behaviour and they'll have to figure out how stuff works for their machine.
I think a sensible purpose of a Wiki is to help people get some of the more
tricky business done. Also, I don't see what is wrong with typing in terms of
escape sequences per se, but for those that have something against it;
there's bound to be some program somewhere that will allow you to type <up>
instead of ^[[A. The upside of the telnet tip, is that it works on many *NIXs
and their derivatives. It even works on OSX, so it's a
More information about the Glasgow-haskell-users