I've created an srfi-169 implementation here: https://code.dieggsy.com/srfi-169/
with release-info: https://code.dieggsy.com/srfi-169/plain/srfi-169.release-info The implementation is purely a hack, but it does seem to work and pass tests... Looking for a second opinion on whether or not this is an awful idea. The entirety of the code is simply: (module srfi-169 () (import scheme chicken.platform chicken.irregex) (register-feature! 'srfi-169) (define orig-sys ##sys#string->number) (set! ##sys#string->number (lambda (str . rest) (apply orig-sys (irregex-replace/all "([0-9A-Z])_(?=[0-9A-Z])" str 1) rest))) (define orig-scheme string->number) (set! scheme#string->number (lambda (str . rest) (apply orig-scheme (irregex-replace/all "([0-9A-Z])_(?=[0-9A-Z])" str 1) rest)))) - Diego
