ctl-arrow bug wrt Epoch 4.2?

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2 total messages Started by Thomas Dunbar Fri, 11 Dec 1992 21:25

#433

Author: Thomas Dunbar
Date: Fri, 11 Dec 1992 21:25

12 lines
849 bytes

 I compiled Epoch 4.2 (with gcc 2.2.2d7 on a Linux system) and it works fine
until i 
  (setq-default ctl-arrow 'eightbitfull) to enable \202, etc (for use
with Marlet's viewer (wysiwyg TeX package for Epoch or Lucid).
 then i dump core when i backspace over a \202.  works fine for higher
eight bit chars (\240 and up).
  can anyone suggest a fix/replacement for the ctl-arrow stuff ??
    thomas (tdunbar@vttcf.cc.vt.edu)

ps: the ctl-arrow isnt needed for \240 and above, but i need 
\202 for TeX's \beta, etc.

Re: ctl-arrow bug wrt Epoch 4.2?

#444

Author: Renaud Marlet
Date: Sat, 12 Dec 1992 15:03

28 lines
1797 bytes

The 8 bits display was controlled in Epoch4.0 with variable "ctl-arrow",
but now, in Epoch4.2, it is handled with variable "meta-printable". 
Setting "ctl-arrow" to anything but t or () is experimentally a bad idea. 
Anyway, "viewer" manages it for you.  You don't need to do that yourself. 
So the only thing I can think of lies in this excerpt from the
README.viewer file:

>>  Epoch needs a lit hack to be able to display the whole (f)math font,
>>  otherwise, you'll miss the greek letters. This is because it believes
>>  an 8bits-font begins at 0241 (octal). So does Lucid with character
>>  0240. In epoch you need to patch a line the file src/buffer.h from
>>          #define is_meta_char(c) ((c) > 0240 && (c) <= 0377)
>>  to
>>          #define is_meta_char(c) ((c) >= 0200 && (c) <= 0377)
>>  
>>  In Lucid, concerning the character 0240, well, I don't believe in the
>>  next release, so you may hack the lines
>>          if (c == 0240) c = ' ';
>>  or
>>          (c == 0240 ? ' ' : c)
>>  in file src/xdisp.c to get rid of this silly non-uniformity.

As you see, Lucid emacs needs a similar hack.  The package "viewer" uses an
embryonic Epoch/Lucid-portable package called "portable".  You might want
to check that your version is up to date with the one on babar.inria.fr
(138.96.24.21) in pub/emacs.  Sorry, but there is no version number (yet?).

Renaud  [marlet@sophia.inria.fr]

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