(rontolisp) docs
← リファレンス

(scheme base)

(scheme base) の手続きです。構文キーワードは構文にあります。

等価性

名前例結果
eq?(eq? 'a 'a)#t
eqv?(eqv? 1.5 1.5)#t
equal?(equal? '(1 (2 #(3))) '(1 (2 #(3))))#t

数値

名前例結果
+(+ 1 2 3)6
-(- 10 3 2)5
*(* 2 3 4)24
/(/ 1 3)1/3
=(= 1 1.0)#t
<(< 1 2 3)#t
>(> 3 2 1)#t
<=(<= 1 1 2)#t
>=(>= 2 2 1)#t
quotient(quotient 17 5)3
remainder(remainder 17 5)2
modulo(modulo -17 5)3
truncate-quotient(truncate-quotient -7 2)-3
truncate-remainder(truncate-remainder -7 2)-1
floor-quotient(floor-quotient -7 2)-4
floor-remainder(floor-remainder -7 2)1
abs(abs -5)5
min(min 3 1 2)1
max(max 1 5 3)5
gcd(gcd 12 18)6
lcm(lcm 4 6)12
expt(expt 2 10)1024
square(square 5)25
floor(floor 2.5)2.0
ceiling(ceiling 2.1)3.0
round(round 2.5)2.0
truncate(truncate -2.7)-2.0
zero?(zero? 0)#t
positive?(positive? 3)#t
negative?(negative? -0.5)#t
odd?(odd? 3)#t
even?(even? 0)#t
number?(number? 1/2)#t
real?(real? 1.5)#t
rational?(rational? 1/3)#t
integer?(integer? 2.0)#t
exact?(exact? 1/2)#t
inexact?(inexact? 1.0)#t
exact-integer?(exact-integer? 5)#t
exact(exact 2.5)5/2
inexact(inexact 1/3)0.3333333333333333
number->string(number->string 255 16)"ff"
string->number(string->number "ff" 16)255
exact-integer-sqrt(exact-integer-sqrt 17)4, 1

真偽値

名前例結果
not(not #f)#t
boolean?(boolean? #f)#t

ペアとリスト

名前例結果
cons(cons 1 2)(1 . 2)
car(car '(1 2 3))1
cdr(cdr '(1 2 3))(2 3)
set-car!(let ((p (list 1 2))) (set-car! p 9) p)(9 2)
set-cdr!(let ((p (list 1 2))) (set-cdr! p '(3 4)) p)(1 3 4)
caar(caar '((1 2) 3))1
cadr(cadr '(1 2 3))2
cdar(cdar '((1 2) 3))(2)
cddr(cddr '(1 2 3))(3)
list(list 1 2 3)(1 2 3)
length(length '(1 2 3))3
append(append '(1 2) '(3) '(4 5))(1 2 3 4 5)
reverse(reverse '(1 2 3))(3 2 1)
list-tail(list-tail '(a b c d) 2)(c d)
list-ref(list-ref '(a b c d) 2)c
list-copy(list-copy '(1 2 3))(1 2 3)
memq(memq 'c '(a b c d))(c d)
memv(memv 101 '(100 101 102))(101 102)
member(member (list 'a) '(b (a) c))((a) c)
assq(assq 'b '((a 1) (b 2)))(b 2)
assv(assv 5 '((2 3) (5 7) (11 13)))(5 7)
assoc(assoc "b" '(("a" . 1) ("b" . 2)))("b" . 2)
null?(null? '())#t
pair?(pair? '(a . b))#t
list?(list? '(a b c))#t

シンボル

名前例結果
symbol?(symbol? 'foo)#t
symbol->string(symbol->string 'flying-fish)"flying-fish"
string->symbol(string->symbol "abc")abc

文字

名前例結果
char?(char? #\a)#t
char->integer(char->integer #\A)65
integer->char(integer->char 97)#\a
char=?(char=? #\a #\a #\a)#t
char<?(char<? #\a #\b #\c)#t
char>?(char>? #\b #\a)#t
char<=?(char<=? #\a #\a #\b)#t
char>=?(char>=? #\c #\b #\b)#t

文字列

名前例結果
string?(string? "abc")#t
make-string(make-string 3 #\x)"xxx"
string(string #\a #\b)"ab"
string-length(string-length "hello")5
string-ref(string-ref "hello" 1)#\e
string-set!(let ((s (make-string 3 #\a))) (string-set! s 1 #\b) s)"aba"
string=?(string=? "abc" "abc" "abc")#t
string<?(string<? "abc" "abd")#t
string>?(string>? "b" "a")#t
string<=?(string<=? "a" "a" "b")#t
string>=?(string>=? "b" "a")#t
substring(substring "hello" 1 3)"el"
string-append(string-append "foo" "bar" "baz")"foobarbaz"
string-copy(string-copy "hello" 1)"ello"
string->list(string->list "abc")(#\a #\b #\c)
list->string(list->string '(#\a #\b))"ab"

ベクタ

名前例結果
vector?(vector? #(1 2))#t
make-vector(make-vector 3 'x)#(x x x)
vector(vector 1 "a" #\b)#(1 "a" #\b)
vector-length(vector-length #(1 2 3))3
vector-ref(vector-ref #(a b c) 1)b
vector-set!(let ((v (vector 1 2 3))) (vector-set! v 0 'x) v)#(x 2 3)
vector->list(vector->list #(1 2 3))(1 2 3)
list->vector(list->vector '(1 2 3))#(1 2 3)
vector-fill!(let ((v (make-vector 3 0))) (vector-fill! v 7) v)#(7 7 7)

バイトベクタ

名前例結果
bytevector?(bytevector? #u8(1 2))#t
make-bytevector(make-bytevector 3 7)#u8(7 7 7)
bytevector(bytevector 1 2 255)#u8(1 2 255)
bytevector-length(bytevector-length #u8(1 2 3))3
bytevector-u8-ref(bytevector-u8-ref #u8(10 20 30) 1)20
bytevector-u8-set!(let ((b (bytevector 1 2 3))) (bytevector-u8-set! b 0 255) b)#u8(255 2 3)
bytevector-copy(bytevector-copy #u8(1 2 3 4 5) 1 3)#u8(2 3)
bytevector-copy!(let ((b (bytevector 1 2 3 4 5))) (bytevector-copy! b 1 #u8(9 8 7) 0 2) b)#u8(1 9 8 4 5)
bytevector-append(bytevector-append #u8(1) #u8() #u8(2 3))#u8(1 2 3)
utf8->string(utf8->string #u8(65 66 67 227 129 130))"ABCあ"
string->utf8(string->utf8 "λx")#u8(206 187 120)

制御

名前例結果
procedure?(procedure? car)#t
apply(apply + 1 2 '(3 4))10
map(map (lambda (x) (* x x)) '(1 2 3))(1 4 9)
for-each(for-each (lambda (x y) (display (+ x y)) (newline)) '(1 2) '(10 20))11 と 22 を 1 行ずつ出力
call/cc(call/cc (lambda (k) (+ 1 (k 42))))42
call-with-current-continuation(call-with-current-continuation (lambda (return) (for-each (lambda (x) (if (negative? x) (return x))) '(1 -2 3)) 'none))-2
dynamic-wind(dynamic-wind (lambda () (display "before ")) (lambda () (display "during ")) (lambda () (display "after")))before during after を出力
values(values 1 2)1, 2
call-with-values(call-with-values (lambda () (values 1 2)) cons)(1 . 2)
make-parameter((make-parameter 5 (lambda (x) (* x 2))))10

例外

名前例結果
error(guard (e (#t (error-object-message e))) (error "division by zero:" 1))"division by zero:"
raise(guard (e (#t (list 'caught e))) (raise 42))(caught 42)
raise-continuable(with-exception-handler (lambda (e) 10) (lambda () (+ 1 (raise-continuable 'oops))))11
with-exception-handler(call/cc (lambda (k) (with-exception-handler (lambda (e) (k (list 'handled e))) (lambda () (raise 'boom)))))(handled boom)
error-object?(guard (e (#t (error-object? e))) (error "bad"))#t
error-object-message(guard (e (#t (error-object-message e))) (error "bad thing:" 1 2))"bad thing:"
error-object-irritants(guard (e (#t (error-object-irritants e))) (error "bad thing:" 1 2))(1 2)
read-error?(guard (e (#t (read-error? e))) (error "not a read error"))#f
file-error?(guard (e (#t (file-error? e))) (raise 'oops))#f

ポート

名前例結果
current-input-port(parameterize ((current-input-port (open-input-string "(1 2) x"))) (read))(1 2)
current-output-port(let ((p (open-output-string))) (parameterize ((current-output-port p)) (display "hi")) (get-output-string p))"hi"
current-error-port(output-port? (current-error-port))#t
port?(port? (open-input-string "x"))#t
input-port?(input-port? (open-output-string))#f
output-port?(output-port? (open-output-string))#t
textual-port?(textual-port? (open-input-string "x"))#t
binary-port?(binary-port? (open-input-bytevector #u8(1)))#t
input-port-open?(let ((p (open-input-string "x"))) (close-port p) (input-port-open? p))#f
output-port-open?(output-port-open? (open-output-string))#t
close-port(let ((p (open-output-string))) (close-port p) (output-port-open? p))#f
close-input-port(let ((p (open-input-string "x"))) (close-input-port p) (input-port-open? p))#f
close-output-port(let ((p (open-output-string))) (close-output-port p) (output-port-open? p))#f
call-with-port(call-with-port (open-input-string "(1 2)") read)(1 2)
open-input-string(read (open-input-string "(a . b) c"))(a . b)
open-output-string(let ((p (open-output-string))) (write 'x p) (write "y" p) (get-output-string p))"x\"y\""
get-output-string(let ((p (open-output-string))) (display "ab" p) (get-output-string p))"ab"
open-input-bytevector(read-u8 (open-input-bytevector #u8(7 8)))7
open-output-bytevector(let ((p (open-output-bytevector))) (write-u8 1 p) (write-u8 2 p) (get-output-bytevector p))#u8(1 2)
get-output-bytevector(let ((p (open-output-bytevector))) (write-bytevector #u8(5 6) p) (get-output-bytevector p))#u8(5 6)

出力

名前例結果
newline(newline)現在の行を終える
write-char(write-char #\a)a を出力
write-string(write-string "hello")hello を出力
write-u8(let ((p (open-output-bytevector))) (write-u8 255 p) (get-output-bytevector p))#u8(255)
write-bytevector(let ((p (open-output-bytevector))) (write-bytevector #u8(1 2 3 4) p 1 3) (get-output-bytevector p))#u8(2 3)
flush-output-port(flush-output-port)出力ポートが溜めているものを書き出す

入力

名前例結果
read-char(read-char)入力 ab に対して #\a、次に #\b
peek-char(peek-char)入力 xy に対して #\x（続けて呼んでも同じ）
read-line(read-line)入力 first line に対して "first line"
char-ready?(char-ready?)#t
read-string(read-string 3 (open-input-string "abcdef"))"abc"
read-u8(read-u8 (open-input-bytevector #u8(1 2)))1
peek-u8(let ((p (open-input-bytevector #u8(9)))) (list (peek-u8 p) (read-u8 p)))(9 9)
u8-ready?(u8-ready? (open-input-bytevector #u8()))#t
read-bytevector(read-bytevector 2 (open-input-bytevector #u8(1 2 3)))#u8(1 2)
read-bytevector!(let ((b (make-bytevector 4 0))) (read-bytevector! b (open-input-bytevector #u8(7 8)) 1) b)#u8(0 7 8 0)
eof-object(write (eof-object))#<eof> を出力
eof-object?(eof-object? (eof-object))#t

システムインターフェース

名前例結果
features(features)(r7rs exact-closed ieee-float full-unicode ratios rontolisp)