diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/scheme/Makefile-inc | 3 | ||||
| -rw-r--r-- | src/scheme/README | 2 | ||||
| -rw-r--r-- | src/scheme/ao_scheme.h | 48 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_builtin.c | 65 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_builtin.txt | 7 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_const.lisp | 813 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_eval.c | 8 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_mem.c | 1 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_poly.c | 4 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_read.c | 14 | ||||
| -rw-r--r-- | src/scheme/ao_scheme_read.h | 1 |
11 files changed, 139 insertions, 827 deletions
diff --git a/src/scheme/Makefile-inc b/src/scheme/Makefile-inc index d23ee3d7..1a080a4e 100644 --- a/src/scheme/Makefile-inc +++ b/src/scheme/Makefile-inc @@ -15,7 +15,8 @@ SCHEME_SRCS=\ ao_scheme_rep.c \ ao_scheme_save.c \ ao_scheme_stack.c \ - ao_scheme_error.c + ao_scheme_error.c \ + ao_scheme_vector.c SCHEME_HDRS=\ ao_scheme.h \ diff --git a/src/scheme/README b/src/scheme/README index 98932b44..a18457fd 100644 --- a/src/scheme/README +++ b/src/scheme/README @@ -5,6 +5,6 @@ This follows the R7RS with the following known exceptions: * No dynamic-wind or exceptions * No environments * No ports -* No syntax-rules; (have classic macros) +* No syntax-rules * No record types * No libraries diff --git a/src/scheme/ao_scheme.h b/src/scheme/ao_scheme.h index 10518716..89616617 100644 --- a/src/scheme/ao_scheme.h +++ b/src/scheme/ao_scheme.h @@ -104,7 +104,8 @@ extern uint8_t ao_scheme_pool[AO_SCHEME_POOL + AO_SCHEME_POOL_EXTRA] __attribut #define AO_SCHEME_BOOL 10 #define AO_SCHEME_BIGINT 11 #define AO_SCHEME_FLOAT 12 -#define AO_SCHEME_NUM_TYPE 13 +#define AO_SCHEME_VECTOR 13 +#define AO_SCHEME_NUM_TYPE 14 /* Leave two bits for types to use as they please */ #define AO_SCHEME_OTHER_TYPE_MASK 0x3f @@ -192,6 +193,13 @@ struct ao_scheme_float { float value; }; +struct ao_scheme_vector { + uint8_t type; + uint8_t pad1; + uint16_t length; + ao_poly vals[]; +}; + #if __BYTE_ORDER == __LITTLE_ENDIAN static inline uint32_t ao_scheme_int_bigint(int32_t i) { @@ -500,6 +508,18 @@ ao_scheme_poly_float(ao_poly poly) float ao_scheme_poly_number(ao_poly p); +static inline ao_poly +ao_scheme_vector_poly(struct ao_scheme_vector *v) +{ + return ao_scheme_poly(v, AO_SCHEME_OTHER); +} + +static inline struct ao_scheme_vector * +ao_scheme_poly_vector(ao_poly poly) +{ + return ao_scheme_ref(poly); +} + /* memory functions */ extern int ao_scheme_collects[2]; @@ -680,6 +700,32 @@ void ao_scheme_bigint_write(ao_poly i); extern const struct ao_scheme_type ao_scheme_bigint_type; + +/* vector */ + +void +ao_scheme_vector_write(ao_poly v); + +void +ao_scheme_vector_display(ao_poly v); + +struct ao_scheme_vector * +ao_scheme_vector_alloc(uint16_t length, ao_poly fill); + +ao_poly +ao_scheme_vector_get(ao_poly v, ao_poly i); + +ao_poly +ao_scheme_vector_set(ao_poly v, ao_poly i, ao_poly p); + +struct ao_scheme_vector * +ao_scheme_list_to_vector(struct ao_scheme_cons *cons); + +struct ao_scheme_cons * +ao_scheme_vector_to_list(struct ao_scheme_vector *vector); + +extern const struct ao_scheme_type ao_scheme_vector_type; + /* prim */ void ao_scheme_poly_write(ao_poly p); diff --git a/src/scheme/ao_scheme_builtin.c b/src/scheme/ao_scheme_builtin.c index aa818646..ae96df7f 100644 --- a/src/scheme/ao_scheme_builtin.c +++ b/src/scheme/ao_scheme_builtin.c @@ -267,7 +267,6 @@ ao_scheme_do_write(struct ao_scheme_cons *cons) if (cons) printf(" "); } - printf("\n"); return _ao_scheme_bool_true; } @@ -751,7 +750,7 @@ ao_poly ao_scheme_do_listp(struct ao_scheme_cons *cons) { ao_poly v; - if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1)) + if (!ao_scheme_check_argc(_ao_scheme_atom_list3f, cons, 1, 1)) return AO_SCHEME_NIL; v = ao_scheme_arg(cons, 0); for (;;) { @@ -864,5 +863,67 @@ ao_scheme_do_jiffies_per_second(struct ao_scheme_cons *cons) return (ao_scheme_int_poly(AO_SCHEME_JIFFIES_PER_SECOND)); } +ao_poly +ao_scheme_do_vector(struct ao_scheme_cons *cons) +{ + return ao_scheme_vector_poly(ao_scheme_list_to_vector(cons)); +} + +ao_poly +ao_scheme_do_vector_ref(struct ao_scheme_cons *cons) +{ + if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dref, cons, 2, 2)) + return AO_SCHEME_NIL; + if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dref, cons, 0, AO_SCHEME_VECTOR, 0)) + return AO_SCHEME_NIL; + return ao_scheme_vector_get(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1)); +} + +ao_poly +ao_scheme_do_vector_set(struct ao_scheme_cons *cons) +{ + if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dset21, cons, 3, 3)) + return AO_SCHEME_NIL; + if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dset21, cons, 0, AO_SCHEME_VECTOR, 0)) + return AO_SCHEME_NIL; + return ao_scheme_vector_set(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1), ao_scheme_arg(cons, 2)); +} + +ao_poly +ao_scheme_do_list_to_vector(struct ao_scheme_cons *cons) +{ + if (!ao_scheme_check_argc(_ao_scheme_atom_list2d3evector, cons, 1, 1)) + return AO_SCHEME_NIL; + if (!ao_scheme_check_argt(_ao_scheme_atom_list2d3evector, cons, 0, AO_SCHEME_CONS, 0)) + return AO_SCHEME_NIL; + return ao_scheme_vector_poly(ao_scheme_list_to_vector(ao_scheme_poly_cons(ao_scheme_arg(cons, 0)))); +} + +ao_poly +ao_scheme_do_vector_to_list(struct ao_scheme_cons *cons) +{ + if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 1)) + return AO_SCHEME_NIL; + if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0)) + return AO_SCHEME_NIL; + return ao_scheme_cons_poly(ao_scheme_vector_to_list(ao_scheme_poly_vector(ao_scheme_arg(cons, 0)))); +} + +ao_poly +ao_scheme_do_vector_length(struct ao_scheme_cons *cons) +{ + if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 1)) + return AO_SCHEME_NIL; + if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0)) + return AO_SCHEME_NIL; + return ao_scheme_integer_poly(ao_scheme_poly_vector(ao_scheme_arg(cons, 0))->length); +} + +ao_poly +ao_scheme_do_vectorp(struct ao_scheme_cons *cons) +{ + return ao_scheme_do_typep(AO_SCHEME_VECTOR, cons); +} + #define AO_SCHEME_BUILTIN_FUNCS #include "ao_scheme_builtin.h" diff --git a/src/scheme/ao_scheme_builtin.txt b/src/scheme/ao_scheme_builtin.txt index cb65e252..e7b3d75c 100644 --- a/src/scheme/ao_scheme_builtin.txt +++ b/src/scheme/ao_scheme_builtin.txt @@ -66,3 +66,10 @@ f_lambda finitep finite? f_lambda infinitep infinite? f_lambda inexactp inexact? f_lambda sqrt +f_lambda vector_ref vector-ref +f_lambda vector_set vector-set! +f_lambda vector +f_lambda list_to_vector list->vector +f_lambda vector_to_list vector->list +f_lambda vector_length vector-length +f_lambda vectorp vector? diff --git a/src/scheme/ao_scheme_const.lisp b/src/scheme/ao_scheme_const.lisp deleted file mode 100644 index 422bdd63..00000000 --- a/src/scheme/ao_scheme_const.lisp +++ /dev/null @@ -1,813 +0,0 @@ -; -; Copyright © 2016 Keith Packard <keithp@keithp.com> -; -; This program is free software; you can redistribute it and/or modify -; it under the terms of the GNU General Public License as published by -; the Free Software Foundation, either version 2 of the License, or -; (at your option) any later version. -; -; This program is distributed in the hope that it will be useful, but -; WITHOUT ANY WARRANTY; without even the implied warranty of -; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -; General Public License for more details. -; -; Lisp code placed in ROM - - ; return a list containing all of the arguments -(def (quote list) (lambda l l)) - -(def (quote def!) - (macro (name value) - (list - def - (list quote name) - value) - ) - ) - -(begin - (def! append - (lambda args - (def! append-list - (lambda (a b) - (cond ((null? a) b) - (else (cons (car a) (append-list (cdr a) b))) - ) - ) - ) - - (def! append-lists - (lambda (lists) - (cond ((null? lists) lists) - ((null? (cdr lists)) (car lists)) - (else (append-list (car lists) (append-lists (cdr lists)))) - ) - ) - ) - (append-lists args) - ) - ) - 'append) - -(append '(a b c) '(d e f) '(g h i)) - - ; boolean operators - -(begin - (def! or - (macro l - (def! _or - (lambda (l) - (cond ((null? l) #f) - ((null? (cdr l)) - (car l)) - (else - (list - cond - (list - (car l)) - (list - 'else - (_or (cdr l)) - ) - ) - ) - ) - ) - ) - (_or l))) - 'or) - - ; execute to resolve macros - -(or #f #t) - -(begin - (def! and - (macro l - (def! _and - (lambda (l) - (cond ((null? l) #t) - ((null? (cdr l)) - (car l)) - (else - (list - cond - (list - (car l) - (_and (cdr l)) - ) - ) - ) - ) - ) - ) - (_and l) - ) - ) - 'and) - - ; execute to resolve macros - -(and #t #f) - -(begin - (def! quasiquote - (macro (x) - (def! constant? - ; A constant value is either a pair starting with quote, - ; or anything which is neither a pair nor a symbol - - (lambda (exp) - (cond ((pair? exp) - (eq? (car exp) 'quote) - ) - (else - (not (symbol? exp)) - ) - ) - ) - ) - (def! combine-skeletons - (lambda (left right exp) - (cond - ((and (constant? left) (constant? right)) - (cond ((and (eqv? (eval left) (car exp)) - (eqv? (eval right) (cdr exp))) - (list 'quote exp) - ) - (else - (list 'quote (cons (eval left) (eval right))) - ) - ) - ) - ((null? right) - (list 'list left) - ) - ((and (pair? right) (eq? (car right) 'list)) - (cons 'list (cons left (cdr right))) - ) - (else - (list 'cons left right) - ) - ) - ) - ) - - (def! expand-quasiquote - (lambda (exp nesting) - (cond - - ; non cons -- constants - ; themselves, others are - ; quoted - - ((not (pair? exp)) - (cond ((constant? exp) - exp - ) - (else - (list 'quote exp) - ) - ) - ) - - ; check for an unquote exp and - ; add the param unquoted - - ((and (eq? (car exp) 'unquote) (= (length exp) 2)) - (cond ((= nesting 0) - (car (cdr exp)) - ) - (else - (combine-skeletons ''unquote - (expand-quasiquote (cdr exp) (- nesting 1)) - exp)) - ) - ) - - ; nested quasi-quote -- - ; construct the right - ; expression - - ((and (eq? (car exp) 'quasiquote) (= (length exp) 2)) - (combine-skeletons ''quasiquote - (expand-quasiquote (cdr exp) (+ nesting 1)) - exp)) - - ; check for an - ; unquote-splicing member, - ; compute the expansion of the - ; value and append the rest of - ; the quasiquote result to it - - ((and (pair? (car exp)) - (eq? (car (car exp)) 'unquote-splicing) - (= (length (car exp)) 2)) - (cond ((= nesting 0) - (list 'append (car (cdr (car exp))) - (expand-quasiquote (cdr exp) nesting)) - ) - (else - (combine-skeletons (expand-quasiquote (car exp) (- nesting 1)) - (expand-quasiquote (cdr exp) nesting) - exp)) - ) - ) - - ; for other lists, just glue - ; the expansion of the first - ; element to the expansion of - ; the rest of the list - - (else (combine-skeletons (expand-quasiquote (car exp) nesting) - (expand-quasiquote (cdr exp) nesting) - exp) - ) - ) - ) - ) - (def! result (expand-quasiquote x 0)) - result - ) - ) - 'quasiquote) - - ; - ; Define a variable without returning the value - ; Useful when defining functions to avoid - ; having lots of output generated. - ; - ; Also accepts the alternate - ; form for defining lambdas of - ; (define (name x y z) sexprs ...) - ; - -(begin - (def! define - (macro (first . rest) - ; check for alternate lambda definition form - - (cond ((list? first) - (set! rest - (append - (list - 'lambda - (cdr first)) - rest)) - (set! first (car first)) - ) - (else - (set! rest (car rest)) - ) - ) - (def! result `(,begin - (,def (,quote ,first) ,rest) - (,quote ,first)) - ) - result - ) - ) - 'define - ) - - ; basic list accessors - -(define (caar l) (car (car l))) - -(define (cadr l) (car (cdr l))) - -(define (cdar l) (cdr (car l))) - -(define (caddr l) (car (cdr (cdr l)))) - - ; (if <condition> <if-true>) - ; (if <condition> <if-true> <if-false) - -(define if - (macro (test . args) - (cond ((null? (cdr args)) - `(cond (,test ,(car args))) - ) - (else - `(cond (,test ,(car args)) - (else ,(cadr args))) - ) - ) - ) - ) - -(if (> 3 2) 'yes) -(if (> 3 2) 'yes 'no) -(if (> 2 3) 'no 'yes) -(if (> 2 3) 'no) - - ; simple math operators - -(define zero? (macro (value) `(eq? ,value 0))) - -(zero? 1) -(zero? 0) -(zero? "hello") - -(define positive? (macro (value) `(> ,value 0))) - -(positive? 12) -(positive? -12) - -(define negative? (macro (value) `(< ,value 0))) - -(negative? 12) -(negative? -12) - -(define (abs x) (if (>= x 0) x (- x))) - -(abs 12) -(abs -12) - -(define max (lambda (first . rest) - (while (not (null? rest)) - (cond ((< first (car rest)) - (set! first (car rest))) - ) - (set! rest (cdr rest)) - ) - first) - ) - -(max 1 2 3) -(max 3 2 1) - -(define min (lambda (first . rest) - (while (not (null? rest)) - (cond ((> first (car rest)) - (set! first (car rest))) - ) - (set! rest (cdr rest)) - ) - first) - ) - -(min 1 2 3) -(min 3 2 1) - -(define (even? x) (zero? (% x 2))) - -(even? 2) -(even? -2) -(even? 3) -(even? -1) - -(define (odd? x) (not (even? x))) - -(odd? 2) -(odd? -2) -(odd? 3) -(odd? -1) - - -(define (list-tail x k) - (if (zero? k) - x - (list-tail (cdr x (- k 1))) - ) - ) - -(define (list-ref x k) - (car (list-tail x k)) - ) - - ; define a set of local - ; variables all at once and - ; then evaluate a list of - ; sexprs - ; - ; (let (var-defines) sexprs) - ; - ; where var-defines are either - ; - ; (name value) - ; - ; or - ; - ; (name) - ; - ; e.g. - ; - ; (let ((x 1) (y)) (set! y (+ x 1)) y) - -(define let - (macro (vars . exprs) - (define (make-names vars) - (cond ((not (null? vars)) - (cons (car (car vars)) - (make-names (cdr vars)))) - (else ()) - ) - ) - - ; the parameters to the lambda is a list - ; of nils of the right length - - (define (make-vals vars) - (cond ((not (null? vars)) - (cons (cond ((null? (cdr (car vars))) ()) - (else - (car (cdr (car vars)))) - ) - (make-vals (cdr vars)))) - (else ()) - ) - ) - ; prepend the set operations - ; to the expressions - - ; build the lambda. - - `((lambda ,(make-names vars) ,@exprs) ,@(make-vals vars)) - ) - ) - - -(let ((x 1) (y)) (set! y 2) (+ x y)) - - ; define a set of local - ; variables one at a time and - ; then evaluate a list of - ; sexprs - ; - ; (let* (var-defines) sexprs) - ; - ; where var-defines are either - ; - ; (name value) - ; - ; or - ; - ; (name) - ; - ; e.g. - ; - ; (let* ((x 1) (y)) (set! y (+ x 1)) y) - -(define let* - (macro (vars . exprs) - - ; - ; make the list of names in the let - ; - - (define (make-names vars) - (cond ((not (null? vars)) - (cons (car (car vars)) - (make-names (cdr vars)))) - (else ()) - ) - ) - - ; the set of expressions is - ; the list of set expressions - ; pre-pended to the - ; expressions to evaluate - - (define (make-exprs vars exprs) - (cond ((null? vars) exprs) - (else - (cons - (list set - (list quote - (car (car vars)) - ) - (cond ((null? (cdr (car vars))) ()) - (else (cadr (car vars)))) - ) - (make-exprs (cdr vars) exprs) - ) - ) - ) - ) - - ; the parameters to the lambda is a list - ; of nils of the right length - - (define (make-nils vars) - (cond ((null? vars) ()) - (else (cons () (make-nils (cdr vars)))) - ) - ) - ; build the lambda. - - `((lambda ,(make-names vars) ,@(make-exprs vars exprs)) ,@(make-nils vars)) - ) - ) - -(let* ((x 1) (y x)) (+ x y)) - -(define when (macro (test . l) `(cond (,test ,@l)))) - -(when #t (write 'when)) - -(define unless (macro (test . l) `(cond ((not ,test) ,@l)))) - -(unless #f (write 'unless)) - -(define (reverse list) - (let ((result ())) - (while (not (null? list)) - (set! result (cons (car list) result)) - (set! list (cdr list)) - ) - result) - ) - -(reverse '(1 2 3)) - -(define (list-tail x k) - (if (zero? k) - x - (list-tail (cdr x) (- k 1)))) - -(list-tail '(1 2 3) 2) - -(define (list-ref x k) (car (list-tail x k))) - -(list-ref '(1 2 3) 2) - - ; recursive equality - -(define (equal? a b) - (cond ((eq? a b) #t) - ((and (pair? a) (pair? b)) - (and (equal? (car a) (car b)) - (equal? (cdr a) (cdr b))) - ) - (else #f) - ) - ) - -(equal? '(a b c) '(a b c)) -(equal? '(a b c) '(a b b)) - -(define member (lambda (obj list . test?) - (cond ((null? list) - #f - ) - (else - (if (null? test?) (set! test? equal?) (set! test? (car test?))) - (if (test? obj (car list)) - list - (member obj (cdr list) test?)) - ) - ) - ) - ) - -(member '(2) '((1) (2) (3))) - -(member '(4) '((1) (2) (3))) - -(define (memq obj list) (member obj list eq?)) - -(memq 2 '(1 2 3)) - -(memq 4 '(1 2 3)) - -(memq '(2) '((1) (2) (3))) - -(define (memv obj list) (member obj list eqv?)) - -(memv 2 '(1 2 3)) - -(memv 4 '(1 2 3)) - -(memv '(2) '((1) (2) (3))) - -(define (_assoc obj list test?) - (if (null? list) - #f - (if (test? obj (caar list)) - (car list) - (_assoc obj (cdr list) test?) - ) - ) - ) - -(define (assq obj list) (_assoc obj list eq?)) -(define (assv obj list) (_assoc obj list eqv?)) -(define (assoc obj list) (_assoc obj list equal?)) - -(assq 'a '((a 1) (b 2) (c 3))) -(assv 'b '((a 1) (b 2) (c 3))) -(assoc '(c) '((a 1) (b 2) ((c) 3))) - -(define char? integer?) - -(char? #\q) -(char? "h") - -(define (char-upper-case? c) (<= #\A c #\Z)) - -(char-upper-case? #\a) -(char-upper-case? #\B) -(char-upper-case? #\0) -(char-upper-case? #\space) - -(define (char-lower-case? c) (<= #\a c #\a)) - -(char-lower-case? #\a) -(char-lower-case? #\B) -(char-lower-case? #\0) -(char-lower-case? #\space) - -(define (char-alphabetic? c) (or (char-upper-case? c) (char-lower-case? c))) - -(char-alphabetic? #\a) -(char-alphabetic? #\B) -(char-alphabetic? #\0) -(char-alphabetic? #\space) - -(define (char-numeric? c) (<= #\0 c #\9)) - -(char-numeric? #\a) -(char-numeric? #\B) -(char-numeric? #\0) -(char-numeric? #\space) - -(define (char-whitespace? c) (or (<= #\tab c #\return) (= #\space c))) - -(char-whitespace? #\a) -(char-whitespace? #\B) -(char-whitespace? #\0) -(char-whitespace? #\space) - -(define (char->integer c) c) -(define (integer->char c) char-integer) - -(define (char-upcase c) (if (char-lower-case? c) (+ c (- #\A #\a)) c)) - -(char-upcase #\a) -(char-upcase #\B) -(char-upcase #\0) -(char-upcase #\space) - -(define (char-downcase c) (if (char-upper-case? c) (+ c (- #\a #\A)) c)) - -(char-downcase #\a) -(char-downcase #\B) -(char-downcase #\0) -(char-downcase #\space) - -(define string (lambda chars (list->string chars))) - -(display "apply\n") -(apply cons '(a b)) - -(define map - (lambda (proc . lists) - (define (args lists) - (cond ((null? lists) ()) - (else - (cons (caar lists) (args (cdr lists))) - ) - ) - ) - (define (next lists) - (cond ((null? lists) ()) - (else - (cons (cdr (car lists)) (next (cdr lists))) - ) - ) - ) - (define (domap lists) - (cond ((null? (car lists)) ()) - (else - (cons (apply proc (args lists)) (domap (next lists))) - ) - ) - ) - (domap lists) - ) - ) - -(map cadr '((a b) (d e) (g h))) - -(define for-each (lambda (proc . lists) - (apply map proc lists) - #t)) - -(for-each display '("hello" " " "world" "\n")) - -(define (_string-ml strings) - (if (null? strings) () - (cons (string->list (car strings)) (_string-ml (cdr strings))) - ) - ) - -(define string-map (lambda (proc . strings) - (list->string (apply map proc (_string-ml strings)))))) - -(string-map (lambda (x) (+ 1 x)) "HAL") - -(define string-for-each (lambda (proc . strings) - (apply for-each proc (_string-ml strings)))) - -(string-for-each write-char "IBM\n") - -(define (newline) (write-char #\newline)) - -(newline) - -(call-with-current-continuation - (lambda (exit) - (for-each (lambda (x) - (write "test" x) - (if (negative? x) - (exit x))) - '(54 0 37 -3 245 19)) - #t)) - - - ; `q -> (quote q) - ; `(q) -> (append (quote (q))) - ; `(a ,(+ 1 2)) -> (append (quote (a)) (list (+ 1 2))) - ; `(a ,@(list 1 2 3) -> (append (quote (a)) (list 1 2 3)) - - - -`(hello ,(+ 1 2) ,@(list 1 2 3) `foo) - - -(define repeat - (macro (count . rest) - (define counter '__count__) - (cond ((pair? count) - (set! counter (car count)) - (set! count (cadr count)) - ) - ) - `(let ((,counter 0) - (__max__ ,count) - ) - (while (< ,counter __max__) - ,@rest - (set! ,counter (+ ,counter 1)) - ) - ) - ) - ) - -(repeat 2 (write 'hello)) -(repeat (x 3) (write 'goodbye x)) - -(define case - (macro (test . l) - ; construct the body of the - ; case, dealing with the - ; lambda version ( => lambda) - - (define (_unarrow l) - (cond ((null? l) l) - ((eq? (car l) '=>) `(( ,(cadr l) __key__))) - (else l)) - ) - - ; Build the case elements, which is - ; simply a list of cond clauses - - (define (_case l) - - (cond ((null? l) ()) - - ; else case - - ((eq? (caar l) 'else) - `((else ,@(_unarrow (cdr (car l)))))) - - ; regular case - - (else - (cons - `((eqv? ,(caar l) __key__) - ,@(_unarrow (cdr (car l)))) - (_case (cdr l))) - ) - ) - ) - - ; now construct the overall - ; expression, using a lambda - ; to hold the computed value - ; of the test expression - - `((lambda (__key__) - (cond ,@(_case l))) ,test) - ) - ) - -(case 12 (1 "one") (2 "two") (3 => (lambda (x) (write "the value is" x))) (12 "twelve") (else "else")) - -;(define number->string (lambda (arg . opt) -; (let ((base (if (null? opt) 10 (car opt))) - ; -; - diff --git a/src/scheme/ao_scheme_eval.c b/src/scheme/ao_scheme_eval.c index 9b3cf63e..907ecf0b 100644 --- a/src/scheme/ao_scheme_eval.c +++ b/src/scheme/ao_scheme_eval.c @@ -108,13 +108,7 @@ ao_scheme_eval_sexpr(void) DBGI("..frame "); DBG_POLY(ao_scheme_frame_poly(ao_scheme_frame_current)); DBG("\n"); ao_scheme_v = ao_scheme_atom_get(ao_scheme_v); /* fall through */ - case AO_SCHEME_BOOL: - case AO_SCHEME_INT: - case AO_SCHEME_BIGINT: - case AO_SCHEME_FLOAT: - case AO_SCHEME_STRING: - case AO_SCHEME_BUILTIN: - case AO_SCHEME_LAMBDA: + default: ao_scheme_stack->state = eval_val; break; } diff --git a/src/scheme/ao_scheme_mem.c b/src/scheme/ao_scheme_mem.c index acc726c8..fe4bc4f5 100644 --- a/src/scheme/ao_scheme_mem.c +++ b/src/scheme/ao_scheme_mem.c @@ -467,6 +467,7 @@ static const struct ao_scheme_type * const ao_scheme_types[AO_SCHEME_NUM_TYPE] = [AO_SCHEME_BOOL] = &ao_scheme_bool_type, [AO_SCHEME_BIGINT] = &ao_scheme_bigint_type, [AO_SCHEME_FLOAT] = &ao_scheme_float_type, + [AO_SCHEME_VECTOR] = &ao_scheme_vector_type, }; static int diff --git a/src/scheme/ao_scheme_poly.c b/src/scheme/ao_scheme_poly.c index d726321c..553585db 100644 --- a/src/scheme/ao_scheme_poly.c +++ b/src/scheme/ao_scheme_poly.c @@ -68,6 +68,10 @@ static const struct ao_scheme_funcs ao_scheme_funcs[AO_SCHEME_NUM_TYPE] = { .write = ao_scheme_float_write, .display = ao_scheme_float_write, }, + [AO_SCHEME_VECTOR] = { + .write = ao_scheme_vector_write, + .display = ao_scheme_vector_display + }, }; static const struct ao_scheme_funcs * diff --git a/src/scheme/ao_scheme_read.c b/src/scheme/ao_scheme_read.c index 30e29441..9ed54b9f 100644 --- a/src/scheme/ao_scheme_read.c +++ b/src/scheme/ao_scheme_read.c @@ -340,6 +340,8 @@ _lex(void) add_token(c); end_token(); return BOOL; + case '(': + return OPEN_VECTOR; case '\\': for (;;) { int alphabetic; @@ -474,10 +476,12 @@ int ao_scheme_read_list; struct ao_scheme_cons *ao_scheme_read_cons; struct ao_scheme_cons *ao_scheme_read_cons_tail; struct ao_scheme_cons *ao_scheme_read_stack; +static int ao_scheme_read_state; #define READ_IN_QUOTE 0x01 #define READ_SAW_DOT 0x02 #define READ_DONE_DOT 0x04 +#define READ_SAW_VECTOR 0x08 static int push_read_stack(int read_state) @@ -490,7 +494,8 @@ push_read_stack(int read_state) ao_scheme_cons_poly(ao_scheme_read_stack))); if (!ao_scheme_read_stack) return 0; - } + } else + ao_scheme_read_state = read_state; ao_scheme_read_cons = NULL; ao_scheme_read_cons_tail = NULL; return 1; @@ -513,6 +518,7 @@ pop_read_stack(void) ao_scheme_read_cons = 0; ao_scheme_read_cons_tail = 0; ao_scheme_read_stack = 0; + read_state = ao_scheme_read_state; } RDBG_OUT(); RDBGI("pop read stack %p %d\n", ao_scheme_read_cons, read_state); @@ -532,7 +538,9 @@ ao_scheme_read(void) ao_scheme_read_cons = ao_scheme_read_cons_tail = ao_scheme_read_stack = 0; for (;;) { parse_token = lex(); - while (parse_token == OPEN) { + while (parse_token == OPEN || parse_token == OPEN_VECTOR) { + if (parse_token == OPEN_VECTOR) + read_state |= READ_SAW_VECTOR; if (!push_read_stack(read_state)) return AO_SCHEME_NIL; ao_scheme_read_list++; @@ -604,6 +612,8 @@ ao_scheme_read(void) v = ao_scheme_cons_poly(ao_scheme_read_cons); --ao_scheme_read_list; read_state = pop_read_stack(); + if (read_state & READ_SAW_VECTOR) + v = ao_scheme_vector_poly(ao_scheme_list_to_vector(ao_scheme_poly_cons(v))); break; case DOT: if (!ao_scheme_read_list) { diff --git a/src/scheme/ao_scheme_read.h b/src/scheme/ao_scheme_read.h index e9508835..e10a7d05 100644 --- a/src/scheme/ao_scheme_read.h +++ b/src/scheme/ao_scheme_read.h @@ -32,6 +32,7 @@ # define FLOAT 10 # define DOT 11 # define BOOL 12 +# define OPEN_VECTOR 13 /* * character classes |