Thanks for the info. Based on what the differences described, it looks like
#$ is what I want to use.


On Fri, Nov 13, 2009 at 9:26 AM, Stefan Monnier <monnier@iro.umontreal.ca>wrote:

> > In fact I'd be curious to learn the differences between it
> > and *load-file-name.*
>
> The difference is the time at which the expansion takes place (either
> read-time or eval-time).
> E.g. try
>
>    (defun foo () (interactive) (message "%s" #$))
> and
>    (defun foo () (interactive) (message "%s" load-file-name))
>
> if you load a file containing one of the above lines and then you do
> M-x foo RET you should see that the first returns the file name
> (i.e. the value of load-file-name at the time the file was read) whereas
> the other returns nil (the value of load-file-name at the time you
> called `foo').
>
>
>        Stefan
>