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Re: zsh and MC was Re: [ANNOUNCEMENT] Updated: mc-4.6.0-1
- From: Pavel Tsekov <ptsekov at gmx dot net>
- To: "Peter A. Castro" <doctor at fruitbat dot org>
- Cc: Thorsten Kampe <thorsten at thorstenkampe dot de>, <cygwin at cygwin dot com>
- Date: Fri, 21 Mar 2003 20:21:17 +0100 (CET)
- Subject: Re: zsh and MC was Re: [ANNOUNCEMENT] Updated: mc-4.6.0-1
On Fri, 21 Mar 2003, Peter A. Castro wrote:
> > > 2. If you start mc under zsh in a *console* window with the command
> > > prompt option, no prompt is shown - just the cursor:
> > > "_" instead of "thorsten at freki% _"
I found the reason. Now I should think about a fix :) I have something in
mind but will take a day or two and maybe a discussion on the MC
However here is short description of the problem for those interested.
When reading the subshell prompt MC displays that part of it, which is
contained between the last '\r' or '\n' character and the end of the
prompt. If there are control characters in this part they are stripped -
what's left is displayed to the user.
Now, when run in console window under Cygwin, (same should be on Linux)
with the TERM variable set to 'cygwin', zsh ouputs this sequence:
\r\e[0;10m\e[m\e[24m\e[JAdministrator at mordor\e[1;36m%\e[m \e[K\e[I\e[I\e[I\e[I\e[I\e[I\e[I \e[1;34m/\e[m 4:4\r\e[I\e[I\e[C\e[C\e[C\e[C\e[C\e[C
Notice the final '\r' character, there is not a single printable character
after it at all. So everything gets stripped and there is no prompt
displayed in MC.
>From what I understand this control sequence wants to move the cursor
right after the username at host part of the prompt - '\e[C' on Cygwin is
the cuf1 and kcuf1 terminfo capability.
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