Scheme Lisp interpreter written in Rust.
Overall, 4.58% of r5rs's standard functions are implemented.
| Function | Implemented | Tests passing |
|---|---|---|
| * | + | + |
| + | + | + |
| - | + | + |
| / | + | + |
| < | + | + |
| <= | + | + |
| = | + | + |
| => | - | - |
| > | + | + |
| >= | + | + |
| abs | - | - |
| acos | - | - |
| and | - | - |
| angle | - | - |
| append | - | - |
| apply | - | - |
| asin | - | - |
| assoc | - | - |
| assq | - | - |
| assv | - | - |
| atan | - | - |
| #b | - | - |
| begin | - | - |
| boolean? | - | - |
| bound | - | - |
| caar | - | - |
| cadr | - | - |
| call-with-current-continuation | - | - |
| call-with-input-file | - | - |
| call-with-output-file | - | - |
| call-with-values | - | - |
| car | - | - |
| case | - | - |
| catch | - | - |
| cdddar | - | - |
| cddddr | - | - |
| cdr | - | - |
| ceiling | - | - |
| char->integer | - | - |
| char-alphabetic? | - | - |
| char-ci<=? | - | - |
| char-ci<? | - | - |
| char-ci=? | - | - |
| char-ci>=? | - | - |
| char-ci>? | - | - |
| char-downcase | - | - |
| char-lower-case? | - | - |
| char-numeric? | - | - |
| char-ready? | - | - |
| char-upcase | - | - |
| char-upper-case? | - | - |
| char-whitespace? | - | - |
| char<=? | - | - |
| char<? | - | - |
| char=? | - | - |
| char>=? | - | - |
| char>? | - | - |
| char? | - | - |
| close-input-port | - | - |
| close-output-port | - | - |
| combination | - | - |
| comma | - | - |
| comment | - | - |
| complex? | - | - |
| cond | - | - |
| cons | - | - |
| constant | - | - |
| continuation | - | - |
| cos | - | - |
| current-input-port | - | - |
| current-output-port | - | - |
| #d | - | - |
| define | - | - |
| define-syntax | - | - |
| definition | - | - |
| delay | - | - |
| denominator | - | - |
| display | - | - |
| do | - | - |
| dotted | - | - |
| dynamic-wind | - | - |
| #e | - | - |
| Index | - | - |
| else | - | - |
| empty list | - | - |
| eof-object? | - | - |
| eq? | - | - |
| equal? | - | - |
| equivalence predicate | - | - |
| eqv? | - | - |
| error | - | - |
| escape procedure | - | - |
| eval | - | - |
| even? | - | - |
| exact | - | - |
| exact->inexact | - | - |
| exact? | - | - |
| exactness | - | - |
| exp | - | - |
| expt | - | - |
| #f | - | - |
| false | - | - |
| floor | - | - |
| for-each | - | - |
| force | - | - |
| gcd | - | - |
| hygienic | - | - |
| #i | - | - |
| identifier | - | - |
| if | - | - |
| imag-part | - | - |
| immutable | - | - |
| implementation restriction | - | - |
| improper list | - | - |
| inexact | - | - |
| inexact->exact | - | - |
| inexact? | - | - |
| input-port? | - | - |
| integer->char | - | - |
| integer? | - | - |
| interaction-environment | - | - |
| lambda | - | - |
| lcm | - | - |
| length | - | - |
| let | - | - |
| let* | - | - |
| let-syntax | - | - |
| letrec | - | - |
| letrec-syntax | - | - |
| library | - | - |
| list | - | - |
| list->string | - | - |
| list->vector | - | - |
| list-ref | - | - |
| list-tail | - | - |
| list? | - | - |
| load | - | - |
| location | - | - |
| log | - | - |
| make-polar | - | - |
| make-rectangular | - | - |
| make-string | - | - |
| make-vector | - | - |
| map | - | - |
| max | + | + |
| member | - | - |
| memq | - | - |
| memv | - | - |
| min | + | + |
| modulo | - | - |
| mutable | - | - |
| negative? | - | - |
| newline | - | - |
| nil | - | - |
| not | - | - |
| null-environment | - | - |
| null? | - | - |
| number | - | - |
| number->string | - | - |
| number? | - | - |
| numerator | - | - |
| #o | - | - |
| object | - | - |
| odd? | - | - |
| open-input-file | - | - |
| open-output-file | - | - |
| optional | - | - |
| or | - | - |
| output-port? | - | - |
| pair | - | - |
| pair? | - | - |
| peek-char | - | - |
| port? | - | - |
| positive? | - | - |
| procedure? | - | - |
| quasiquote | - | - |
| quote | - | - |
| quotient | - | - |
| rational? | - | - |
| rationalize | - | - |
| read | - | - |
| read-char | - | - |
| real-part | - | - |
| real? | - | - |
| remainder | - | - |
| reverse | - | - |
| round | - | - |
| scheme-report-environment | - | - |
| set! | - | - |
| set-car! | - | - |
| set-cdr! | - | - |
| setcar | - | - |
| sin | - | - |
| sqrt | - | - |
| string | - | - |
| string->list | - | - |
| string->number | - | - |
| string->symbol | - | - |
| string-append | - | - |
| string-ci<=? | - | - |
| string-ci<? | - | - |
| string-ci=? | - | - |
| string-ci>=? | - | - |
| string-ci>? | - | - |
| string-copy | - | - |
| string-fill! | - | - |
| string-length | - | - |
| string-ref | - | - |
| string-set! | - | - |
| string<=? | - | - |
| string<? | - | - |
| string=? | - | - |
| string>=? | - | - |
| string>? | - | - |
| string? | - | - |
| substring | - | - |
| symbol->string | - | - |
| symbol? | - | - |
| syntax-rules | - | - |
| #t | - | - |
| tan | - | - |
| transcript-off | - | - |
| transcript-on | - | - |
| truncate | - | - |
| unquote | - | - |
| unquote-splicing | - | - |
| values | - | - |
| vector | - | - |
| vector->list | - | - |
| vector-fill! | - | - |
| vector-length | - | - |
| vector-ref | - | - |
| vector-set! | - | - |
| vector? | - | - |
| with-input-from-file | - | - |
| with-output-to-file | - | - |
| write | - | - |
| write-char | - | - |
| #x | - | - |
| zero? | - | - |