From gwking at metabang.com  Tue Feb  3 12:36:20 2009
From: gwking at metabang.com (Gary King)
Date: Tue, 3 Feb 2009 07:36:20 -0500
Subject: [cl-typesetting-devel] [Sbcl-help] cl-typesetting strangeness
In-Reply-To: <20090202215021.GA11246@localhost>
References: <20090202215021.GA11246@localhost>
Message-ID: <0AF5399D-B78C-4984-8BB1-81C791F6EE01@metabang.com>

Hi David,

(I've cross posted this to c-lypesetting-devel).

 From the error, I'm guessing it's a package thing. If you have code  
like

(in-package <my-package)

...

(<some cl-typesetting macro>>... (:h-align ...) ...)

and <some cl-typesetting macro> isn't accessible in my-package, then  
the compiler will think that <some cl-typesetting macro> is a function  
and evaluate its arguments _before_ it checks that <some cl- 
typesetting macro> is even defined. When it gets to (:h-align ...), it  
will think that it is also a function and try to do something with it.  
Sadly, :h-align isn't a function and so you get the error.

The first thing to do is to check if <some cl-typesetting macro> is  
accessible.

HTH,

On Feb 2, 2009, at 4:50 PM, David Creelman wrote:

> Hi,
>
> I'm trying to write a utility to print calendars using cl-typesetting.
>
> I'm using SBCL and I get this error when I try to create a paragraph  
> in my code
>
> * (calendar-print::hello)
>
> debugger invoked on a UNDEFINED-FUNCTION in thread #<THREAD "initial  
> thread" RUNNING {A834711}>: The function :H-ALIGN is undefined.
>
> Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.
>
> restarts (invokable by number or by possibly-abbreviated name):
>  0: [ABORT] Exit debugger, returning to top level.
>
> ("bogus stack frame")
>
>
> I've done (require 'cl-typesetting) before calling hello. hello is  
> simply a
> copy of hello from cl-typesettings demo file test.lisp. I have a  
> (use-package
> typeset) above the hello code.
>
> I'm guessing the problem is something to do with the accessor for  
> the style.
> Why can't this be seen by SBCL in my module when it can be seen in  
> the test
> module of cl-typesetting?
>
> My apologies if this is a bit off topic for questions on SBCL.
>
> Any ideas what I'm doing wrong?
>
> Regards
> David
>
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