🚀 go-pugleaf

I've been using epoch-4.0p2, with happiness about the neat features,
but a little disapointment with the reliability: it was crashing on me
a few times a day.  I finally summoned the gumption to investigate one
of the core files, and found what seems to be a clear bug in button.c.

The function PlotTextLine, which begins on line 1574, defines
  
  char buf[1000];		/* Buffer for constructing string. */
  char *pos;			/* Position in buf */

and later says

  pos = buf;

a few lines later, at 1604, we have

      if (cb->style == s && n < 9999)
	{
	  *pos++ = cb->ch;

The number 9999 should be, I believe 999.  The value of n in the core
file I investigated was 1019, and the argument 'w' had been
overwritten, causing an unaligned access.  More succinctly, the diffs
are:

1604c1604
<       if (cb->style == s && n < 999)
---
>       if (cb->style == s && n < 9999)


The main research effort I'm involved with is trying to, among other
things, prove the absence of array bounds errors at compile time (for
Modula-3).  I will save this one as a good example :-)

Hope this helps.  Keep up the great work!

Dave