Vararg macros, and code block as macro?

[Diego Zamboni <diego@zzamboni.org>]

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Hi,

I have two somewhat related questions:

1. Is there a way for macros to check how many arguments were passed, and
change its output depending on this? At the moment I found a solution using
an =(eval...)= macro, which checks the values of $1, $2, etc. and produces
the appropriate string. It works, but I wonder if there's a more org-native
way.

2. Related to my workaround above, I am wondering if there's a way to refer
to a source block as the macro definition. At the moment I just joined my
whole elisp block into a single line for the macro definition, but I would
love to have it in a proper source block so I can edit it properly, have
indentation and syntax highlighting, etc.

If anyone is interested, here's my current code:
https://raw.githubusercontent.com/zzamboni/zzamboni.org/master/content-org/zzamboni.org.
You can see the "hsapi" macro, and a source block right below its
definition, with the code, which for now has been joined together in the
macro line.

Thanks!
--Diego

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