[Chicken-users] Wrapping C's printf

[Ozzi]

I'd like to wrap C's printf so that I can do something like this:

(c-printf "The %s of %d and %d is %d" "sum" 1 1 2)

Which would print "The sum of 1 and 1 is 2."

I realize that I can't use a simple foreign-lambda, as I need to call C's printf 
with an arbitrary argument list.

Is there a clean way to do this with ffi?

If there is not, my idea is to chop the format string up into chunks, like so:

'("The %s" " of %d" " and %d" " is %d")

and run each chunk through the correct single-argument foreign-lambda of printf. 
That means I will have to create one foreign function for each type of argument 
printf can take, which shouldn't be a big deal.

Any comments on this method?

Of course, if someone knows of a pre-made version of printf with C syntax that 
will work with chicken, all of this will be moot, and I will be grateful.

Oz