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Re: Setting term-default-fg-color/term-default-bg-color has no effect

From: Dan Nicolaescu
Subject: Re: Setting term-default-fg-color/term-default-bg-color has no effect
Date: Tue, 31 Jul 2007 21:10:39 -0700

Peter Povinec <address@hidden> writes:

  > > Can you please describe exactly what are you doing and how? How did
  > > you test your patch? 
  > The basic idea is the same as it was in Emacs 21.  Take the user preferences
  > in terms of fg/bg colors as stored in term-default-fg-color and
  > term-default-bg-color and apply them consistently every time 
  > is set.  This is done for the initial value of term-current-face, when the
  > terminal is reset in term-reset-terminal, and when the escape sequences
  > setting the default fg/bg colors are interpreted in 
  > Note that this was partially done already in term-handle-color-array, e.g. 
  > the case of  setting reverse+invisible. 
  > For the testing, I've tested with my color customizations, including colored
  > terminal prompt in csh.  I verified the reverse video logic by running 'top'
  > and 'emacs -nw' inside an ansi-term, both with my customizations, and plain
  > emacs.  Customizations to term-default-fg-color or term-default-bg-color 
  > one or more term sessions are running take effect as expected, e.g. by 
  > 'reset'.  

I tested your changes by setting term-default-fg-color to blue and
term-default-bg-color to red on an emacs run with -Q and comparing
with running various curses applications in M-x term and "xterm -fg
blue -bg red". The results are not the same.  

The problem is that the screen is updated in a lot of places in
term.el not only term-handle-colors-array. So this could not have
worked correctly in emacs 21 either.

Given that AFAIK nothing else in emacs changes the default foreground
and background for a buffer, it's kind of hard to find a convincing
argument that such a feature is needed for term.el. It can probably be
done with some effort, but is it worth the added complexity? Not

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