[ESS] SAS mode font-lock-mode problem
S.J.Eglen at damtp.cam.ac.uk
Sat Feb 4 17:00:41 CET 2006
> I have been using ESS off and on for several years, orignally with
> Xemacs and more recently with GNU Emacs ... but always in X.
> Now, i am using Emacs via PuTTY from Windows :(
> When I open a SAS file, I get this this Lisp error:
> wrong-type-argument symbolp ""
> If I try to open the file a second time, it opens, but font-locking
> isn't enabled. Any idea how to handle this?
Including the backtrace made debugging this fairly easy, thanks! It
looks like you have font lock turned on all in all buffers. I can
replicate your problem on an xterm in unix by "emacs -nw"
and then visiting baseball.sas and trying M-x
The problem is that for non-windowed systems (such as your putty
connection and emacs -nw), window-system is nil and so essl-sas.el has:
(defvar SAS-mode-font-lock-keywords "") ;; empty if not window-system
A temporary fix might be to change "" above to nil. But this
conditioning upon window-system might need closer inspection, since
Emacs 21.3 can do font locking within an xterm.
Rodney: does the value of SAS-mode-font-lock-keywords need to be
conditioned upon window-system?
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