Hi David,
On Jan 11 2019, David Ireland wrote:
Hi there,
I'm reading from a (string) port and have a need to peek 2 characters
inside without actually reading off the port (read-char).
I believe procedures such as unread-char seen in other Schemes would solve
my problem however, this isn't available in Chicken it seems.
I do not recall that I ever used unread-char ever. I roughly recall that it
usually can only "un-read" a single character. But that might be wrong.
Would anyone have any suggestions?
If you really need such a thing, my only suggestion would be to look into
http://wiki.call-cc.org/man/5/Module%20(chicken%20port)
make-input-port combined with make-concatenated-port and some tricks could
do the trick.
Best
/Jörg
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