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Issue #236 - Added single-byte I/O functions

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This commit is contained in:
Justin Ethier 2017-12-18 23:39:15 +00:00
parent 584b31460b
commit 44af2e8d98
1 changed files with 24 additions and 14 deletions
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38
scheme/base.sld
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@ -187,10 +187,10 @@
; write-bytevector
;
; : No unicode support at this time
; peek-u8
; read-u8
peek-u8
read-u8
; u8-ready?
; write-u8
write-u8
;
; ; No complex or rational numbers at this time
; rationalize
@ -626,17 +626,27 @@
(if (null? lst)
end
(func (car lst) (foldr func end (cdr lst)))))
;;;;
;; TODO: stubs for the u8 single-byte I/O functions
;;object Cyc_write_u8(void *data, object c, object port);
;;object Cyc_io_read_u8(void *data, object cont, object port);
;;object Cyc_io_peek_u8(void *data, object cont, object port);
;; (define-c get-param-objs
;; "(void *data, int argc, closure _, object k)"
;; " gc_thread_data *thd = (gc_thread_data *)data;
;; //Cyc_st_add(data, \"scheme/base.sld:get-param-objs\");
;; return_closcall1(data, k, thd->param_objs); ")
;;;;
(define-c _read-u8
"(void *data, int argc, closure _, object k, object port)"
" Cyc_io_read_u8(data, k, port);")
(define-c _peek-u8
"(void *data, int argc, closure _, object k, object port)"
" Cyc_io_peek_u8(data, k, port);")
(define-c _write-u8
"(void *data, int argc, closure _, object k, object chr, object port)"
" return_closcall1(data, k, Cyc_write_u8(data, chr, port));")
(define (read-u8 . port)
(if (null? port)
(_read-u8 (current-input-port))
(_read-u8 (car port))))
(define (peek-u8 . port)
(if (null? port)
(_peek-u8 (current-input-port))
(_peek-u8 (car port))))
(define (write-u8 chr . port)
(if (null? port)
(_write-u8 chr (current-input-port))
(_write-u8 chr (car port))))
(define (peek-char . port)
(if (null? port)
(Cyc-peek-char (current-input-port))