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mcl 2.0.1 glitches
- To: email@example.com
- Subject: mcl 2.0.1 glitches
- From: Dimitri Simos <firstname.lastname@example.org>
- Date: Mon, 18 Apr 94 02:38:00 gmt
I've been converting from 2.0 to 2.0.1 and have a few minor
questions which I hope you could help me with. None of
these is high priority, but they do baffle me.
---1. I create my application with the default #'toplevel-function
since I still want the listener to be there. However, I would prefer
to suppress the "Welcome to Macintosh Common Lisp Version 2.0.1!"
message which comes up. Is there a simple way of doing this?
I do not really understand how to create the appropriate toplevel
loop, but I found by experiment that in the previous MCL version (2.0)
this message went away if I specified:
when doing the save-application.
(It's amazing what your users will try, eh?)
However, trying the above in 2.0.1 crashes MCL and the system, so for
the moment I do not give the keyword argument.
---2. This is a problem I've been noticing for some time:
(format t "~,2f" 0.006) gives 0.01 as expected, but:
(format t "~,2f" 0.004) gives 0.004 ! Similarly,
(format t "~,2f" 0.000001) gives 0.000 etc.
I thought that there could never be more than the specified
number of digits after the decimal. Or am I reading Steele
CLtL2 pp.588-589 wrong?
---3. Loading the "ccl:examples;boyer-moore" file seems to give
a slower performance than it did under version 2.0. When I specify
a double wildcard (e.g. "HD:a folder:*:*") the system takes a long
time being quiet before I hear any heavy disk activity. Is this
---4. I have some problems with Balloon help. I want my application to
run without a Help file, so I moved it elsewhere. My application then kept
popping up dialogs looking for it, so I changed the argument from t to nil in:
(defmethod help-resource-file ((a application))
purely by guesswork and it seemed to work. Is this ok? However, trying
to get balloon help on the "Search.." dialog then gave nasty messages, so
I changed (error "Malformed help-spec: ~s" restype) to simply (cancel).
Also the function help-tehandle sometimes complained of a non-string
argument. Furthermore, the problem of the missing descenders seems
to be still there sometimes, although it may be my fault for messing with
a file that I do not understand. Sorry for this flurry of ignorance,
this is rather low priority as I said.
Finally, I've been testing my application on a PowerMac and despite
the disappointing speed I have to say it's proven very robust and
problem-free (just the known clash with Virtual Memory).
Well done indeed to Apple for such a faithful emulation.
Let's see what awaits the really wonderful MCL now..
Thanks in advance,