e=$(subst $b,=,$1) f=$(if $1,$(call f,$(subst =,-,$(subst -,,$e)))$(word $(words $(subst -,- ,$e)-),0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v)) g=$(info $(foreach b,$2,$f))$(call g$(word 62,$2),$1-,$2 $1-) 1=-- 2=-- $g
Note that non-ascii characters in the above source code will be escaped (such as \x9f).