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On Sunday, June 15 at 05:11 PM, quoth Marianne Promberger:
> I'm running mutt in xfce4-terminal, which supports 256 colors, but I
> have to manually set xfce4-terminal in its preferences dialogue to
> identify as "xterm-256color" for mutt to display my 256-color colors.
> So far, so good.
Hrmf. The XFCE folks *really* ought to provide their own termcap file.
Telling your applications to pretend that it's a different terminal
(e.g. an xterm) is practically guaranteed to get you incorrect
behavior in some respect.
> Now I've noticed that with TERM=xterm-256color, mutt doesn't
> recognize the backspace key in the index or the pager (I have
> bindings for <backspace> in the .muttrc, but it says "key not
> bound"). When I set TERM to "xterm", the backspace key works fine.
Interesting... does the terminal actually alter what it emits? In
other words, when you press control-V backspace, what shows up in your
shell, and does what shows up change based on the TERM setting? If
not, is your termcap perhaps different? Try these two commands:
infocmp -1 -L xterm | grep key_backspace
infocmp -1 -L xterm-256color | grep key_backspace
They *should* be the same, but if they're not on your system, that
would explain your problem (both should print out
"key_backspace=^H,").
> In the "Advanced" tab of my xfce4-terminal settings, I have a
> setting for "backspace key generates ..." with the options -
> Auto-detect - ASCII DEL - Escape Sequence - Control-H
Uy. I wonder what "auto-detect" is actually doing.
> Only if I set this to "Control-H" does mutt recognize the backspace
> key while TERM is set to xterm-256color.
Which suggests that the auto-detection isn't actually working very
well.
> However, in that case, my editor (jed) doesn't recognize the
> backspace anymore as such,
That suggests that jed is using different terminal libraries than
mutt. I bet you can get them to agree on the backspace character by
simply ensuring that both of them use the same terminal libraries. If
memory serves, jed requires slang---since mutt can be compiled with
slang (the default is ncurses), try that.
> Googling, I just found this long thread:
> http://bugs.mutt.org/trac/ticket/2952
> but if there were practical solutions therein I failed to grasp them.
Just as there are several different bits and bobs of software that
have to agree on these conventions (such as which byte is emitted for
a backspace), there are several different ways to solve a problem when
they disagree.
~Kyle
- --
Computers are useless. They can only give you answers.
-- Pablo Picasso
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