* Acme gags, if pushed too far!!!
@ 1995-08-15 8:02 Fariborz
0 siblings, 0 replies; 2+ messages in thread
From: Fariborz @ 1995-08-15 8:02 UTC (permalink / raw)
In the pcdist version of plan9, acme gags, fairly consistently, if
the second column is pushed too far to the right. The output is
something like this:
acme: draw: _frcanfit==0: file does not exist
acme 79: suicide: sys: trap: fault write addr=0x0 pc=0x00022ab2
term%
The fastest way to reproduce it, is this:
[1] New a term window.
[2] Start acme.
[3] In the second (rightmost) column, where the directory
``/usr/none/'' is displayed, drag the mouse across the `/' while
holding down the right button, and let go. This stacks a new
window, below, with the contents of the root directory.
[4] Now move the whole column by placing the mouse on the
topmost/rightmost solid square; click and hold the right mouse
button, and move the mouse (column) to the right, passed the right
edge of the window.
Voila.
Step 3 seems to be important in causing this. If it is skipped,
nothing happens.
BTW, and after the fact, is this the right place for this kind of
question/bug-report?
-fst
FYI, the system is a Toshiba T2130CT 486DX4 75Mhz, 8 MB, vga
640x480x1, with an AccuPoint (looks like a PS2) pointing device.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Acme gags, if pushed too far!!!
@ 1995-08-15 15:55 rob
0 siblings, 0 replies; 2+ messages in thread
From: rob @ 1995-08-15 15:55 UTC (permalink / raw)
This is a silly bug with no easy guaranteed fix. The code has a check
against the problem but it's too lax. Change the appearances of the
value 20 in /sys/src/cmd/acme/rows.l to 80 and that should cover
most cases. A proper fix involves rewriting the underlying frame library,
which may happen someday but not anytime soon. I have placed the
diffs in the errata web page. It's not worth posting a new binary; just
avoid making columns so uselessly narrow.
-rob
^ permalink raw reply [flat|nested] 2+ messages in thread
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