Hi all, Just writing to say that after many months of being busy with other stuff, I finally got around to finishing my Guile port of SRFI 41:
https://github.com/cky/guile2-modules Basically, both the code and the tests are based on the reference implementation, albeit with somewhat significant changes (as Andreas Rottmann pointed out ;-)) to make better use of Guile's features: + The tests use Guile's (test-suite lib) test framework. + define*/lambda* is used for handling optional arguments, rather than manual argument unpacking. In the odd case of stream->list where the optional argument is the leftmost one, I used case-lambda instead. + Guile's SRFI 45 is used directly, rather than reimplemented as in the reference implementation. + stream-match and stream-unfolds are complete rewrites. stream-match uses (ice-9 match), and stream-unfolds uses (ice-9 q) to store the unread results. + stream-constant uses circular-list to hold the values of interest, rather than...whatever the reference implementation does with append (see for yourself, if you're curious ;-)). The long and short is that whatever functionality is covered by an existing Guile module or builtin feature, I tried to make the best use of it. Still, I don't know every Guile module there is, so if I missed something, please let me know! Before anyone asks, though, I can't use (ice-9 streams)---it works on a very different streaming model from SRFI 41, as explained in the latter's introduction. Comments are very welcome. :-) Enjoy! Chris.
