2 Beginning Student with List Abbreviations
program  | 
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  | def-or-expr ...  | 
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def-or-expr  | 
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  | definition  | 
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  | expr  | 
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  | test-case  | 
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  | library-require  | 
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definition  | 
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  | (define (id id id ...) expr)  | 
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  | (define id expr)  | 
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  | (define-struct id (id ...))  | 
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expr  | 
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  | (id expr expr ...) ; function call  | 
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  | (prim-op expr ...) ; primitive operation call  | 
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  | (cond [expr expr] ... [expr expr])  | 
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  | (if expr expr expr)  | 
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  | (and expr expr expr ...)  | 
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  | (or expr expr expr ...)  | 
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  | id  | 
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  | ’quoted ; quoted value  | 
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  | `quasiquoted ; quasiquote  | 
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  | number  | 
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  | string  | 
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  | character  | 
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quoted  | 
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  | id  | 
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  | number  | 
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  | string  | 
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  | character  | 
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  | (quoted ...)  | 
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  | ’quoted  | 
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  | `quoted  | 
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  | ,quoted  | 
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  | ,@quoted  | 
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quasiquoted  | 
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  | id  | 
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  | number  | 
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  | string  | 
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  | character  | 
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  | (quasiquoted ...)  | 
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  | ’quasiquoted  | 
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  | `quasiquoted  | 
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  | ,expr  | 
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  | ,@expr  | 
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test-case  | 
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  | (check-expect expr expr)  | 
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  | (check-within expr expr expr)  | 
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  | (check-error expr expr)  | 
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library-require  | 
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  | (require string)  | 
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  | (require (lib string string ...))  | 
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  | (require (planet string package))  | 
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package  | 
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  | (string string number number)  | 
An id is a sequence of characters not including a space or one of the following:
" , ' ` ( ) [ ] { } | ; #
A number is a number such as 123, 3/2, or 5.5.
A string is enclosed by a pair of ". Unlike symbols, strings may be split into characters and manipulated by a variety of primitive functions. For example, "abcdef", "This is a string", and "This is a string with \" inside" are all strings.
A character begins with #\ and has the name of the character. For example, #\a, #\b, and #\space are characters.
A prim-op is one of:  | ||||||||
Numbers: Integers, Rationals, Reals, Complex, Exacts, Inexacts  | ||||||||
* : (num num num ... -> num)  | ||||||||
+ : (num num num ... -> num)  | ||||||||
- : (num num ... -> num)  | ||||||||
/ : (num num num ... -> num)  | ||||||||
< : (real real real ... -> boolean)  | ||||||||
<= : (real real real ... -> boolean)  | ||||||||
= : (num num num ... -> boolean)  | ||||||||
> : (real real real ... -> boolean)  | ||||||||
>= : (real real ... -> boolean)  | ||||||||
abs : (real -> real)  | ||||||||
acos : (num -> num)  | ||||||||
add1 : (number -> number)  | ||||||||
angle : (num -> real)  | ||||||||
asin : (num -> num)  | ||||||||
atan : (num -> num)  | ||||||||
ceiling : (real -> int)  | ||||||||
complex? : (any -> boolean)  | ||||||||
conjugate : (num -> num)  | ||||||||
cos : (num -> num)  | ||||||||
cosh : (num -> num)  | ||||||||
current-seconds : (-> int)  | ||||||||
denominator : (rat -> int)  | ||||||||
e : real  | ||||||||
even? : (integer -> boolean)  | ||||||||
exact->inexact : (num -> num)  | ||||||||
exact? : (num -> boolean)  | ||||||||
exp : (num -> num)  | ||||||||
expt : (num num -> num)  | ||||||||
floor : (real -> int)  | ||||||||
gcd : (int int ... -> int)  | ||||||||
imag-part : (num -> real)  | ||||||||
inexact->exact : (num -> num)  | ||||||||
inexact? : (num -> boolean)  | ||||||||
integer->char : (int -> char)  | ||||||||
integer? : (any -> boolean)  | ||||||||
lcm : (int int ... -> int)  | ||||||||
log : (num -> num)  | ||||||||
magnitude : (num -> real)  | ||||||||
make-polar : (real real -> num)  | ||||||||
max : (real real ... -> real)  | ||||||||
min : (real real ... -> real)  | ||||||||
modulo : (int int -> int)  | ||||||||
negative? : (number -> boolean)  | ||||||||
number->string : (num -> string)  | ||||||||
number? : (any -> boolean)  | ||||||||
numerator : (rat -> int)  | ||||||||
odd? : (integer -> boolean)  | ||||||||
pi : real  | ||||||||
positive? : (number -> boolean)  | ||||||||
quotient : (int int -> int)  | ||||||||
random : (int -> int)  | ||||||||
rational? : (any -> boolean)  | ||||||||
real-part : (num -> real)  | ||||||||
real? : (any -> boolean)  | ||||||||
remainder : (int int -> int)  | ||||||||
round : (real -> int)  | ||||||||
sgn : (real -> (union 1 1.0 0 0.0 -1 -1.0))  | ||||||||
sin : (num -> num)  | ||||||||
sinh : (num -> num)  | ||||||||
sqr : (num -> num)  | ||||||||
sqrt : (num -> num)  | ||||||||
sub1 : (number -> number)  | ||||||||
tan : (num -> num)  | ||||||||
zero? : (number -> boolean)  | ||||||||
Booleans  | ||||||||
boolean=? : (boolean boolean -> boolean)  | ||||||||
boolean? : (any -> boolean)  | ||||||||
false? : (any -> boolean)  | ||||||||
not : (boolean -> boolean)  | ||||||||
Symbols  | ||||||||
symbol->string : (symbol -> string)  | ||||||||
symbol=? : (symbol symbol -> boolean)  | ||||||||
symbol? : (any -> boolean)  | ||||||||
Lists  | ||||||||
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caar : ((cons (cons Z (listof Y)) (listof X)) -> Z)  | ||||||||
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cadddr : ((listof Y) -> Y)  | ||||||||
caddr : ((cons W (cons Z (cons Y (listof X)))) -> Y)  | ||||||||
cadr : ((cons Z (cons Y (listof X))) -> Y)  | ||||||||
car : ((cons Y (listof X)) -> Y)  | ||||||||
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cddr : ((cons Z (cons Y (listof X))) -> (listof X))  | ||||||||
cdr : ((cons Y (listof X)) -> (listof X))  | ||||||||
cons : (X (listof X) -> (listof X))  | ||||||||
cons? : (any -> boolean)  | ||||||||
eighth : ((listof Y) -> Y)  | ||||||||
empty? : (any -> boolean)  | ||||||||
fifth : ((listof Y) -> Y)  | ||||||||
first : ((cons Y (listof X)) -> Y)  | ||||||||
fourth : ((listof Y) -> Y)  | ||||||||
length : (list -> number)  | ||||||||
list : (any ... -> (listof any))  | ||||||||
list* : (any ... (listof any) -> (listof any))  | ||||||||
list-ref : ((listof X) natural-number -> X)  | ||||||||
member : (any list -> boolean)  | ||||||||
memq : (any list -> (union false list))  | ||||||||
memv : (any list -> (union false list))  | ||||||||
null : empty  | ||||||||
null? : (any -> boolean)  | ||||||||
pair? : (any -> boolean)  | ||||||||
rest : ((cons Y (listof X)) -> (listof X))  | ||||||||
reverse : (list -> list)  | ||||||||
second : ((cons Z (cons Y (listof X))) -> Y)  | ||||||||
seventh : ((listof Y) -> Y)  | ||||||||
sixth : ((listof Y) -> Y)  | ||||||||
third : ((cons W (cons Z (cons Y (listof X)))) -> Y)  | ||||||||
Posns  | ||||||||
make-posn : (number number -> posn)  | ||||||||
posn-x : (posn -> number)  | ||||||||
posn-y : (posn -> number)  | ||||||||
posn? : (anything -> boolean)  | ||||||||
Characters  | ||||||||
char->integer : (char -> integer)  | ||||||||
char-alphabetic? : (char -> boolean)  | ||||||||
char-ci<=? : (char char ... -> boolean)  | ||||||||
char-ci<? : (char char ... -> boolean)  | ||||||||
char-ci=? : (char char ... -> boolean)  | ||||||||
char-ci>=? : (char char ... -> boolean)  | ||||||||
char-ci>? : (char char ... -> boolean)  | ||||||||
char-downcase : (char -> char)  | ||||||||
char-lower-case? : (char -> boolean)  | ||||||||
char-numeric? : (char -> boolean)  | ||||||||
char-upcase : (char -> char)  | ||||||||
char-upper-case? : (char -> boolean)  | ||||||||
char-whitespace? : (char -> boolean)  | ||||||||
char<=? : (char char ... -> boolean)  | ||||||||
char<? : (char char ... -> boolean)  | ||||||||
char=? : (char char ... -> boolean)  | ||||||||
char>=? : (char char ... -> boolean)  | ||||||||
char>? : (char char ... -> boolean)  | ||||||||
char? : (any -> boolean)  | ||||||||
Strings  | ||||||||
format : (string any ... -> string)  | ||||||||
list->string : ((listof char) -> string)  | ||||||||
make-string : (nat char -> string)  | ||||||||
string : (char ... -> string)  | ||||||||
string->list : (string -> (listof char))  | ||||||||
string->number : (string -> (union number false))  | ||||||||
string->symbol : (string -> symbol)  | ||||||||
string-append : (string ... -> string)  | ||||||||
string-ci<=? : (string string ... -> boolean)  | ||||||||
string-ci<? : (string string ... -> boolean)  | ||||||||
string-ci=? : (string string ... -> boolean)  | ||||||||
string-ci>=? : (string string ... -> boolean)  | ||||||||
string-ci>? : (string string ... -> boolean)  | ||||||||
string-copy : (string -> string)  | ||||||||
string-length : (string -> nat)  | ||||||||
string-ref : (string nat -> char)  | ||||||||
string<=? : (string string ... -> boolean)  | ||||||||
string<? : (string string ... -> boolean)  | ||||||||
string=? : (string string ... -> boolean)  | ||||||||
string>=? : (string string ... -> boolean)  | ||||||||
string>? : (string string ... -> boolean)  | ||||||||
string? : (any -> boolean)  | ||||||||
substring : (string nat nat -> string)  | ||||||||
Images  | ||||||||
image=? : (image image -> boolean)  | ||||||||
image? : (any -> boolean)  | ||||||||
Misc  | ||||||||
=~ : (real real non-negative-real -> boolean)  | ||||||||
eof : eof  | ||||||||
eof-object? : (any -> boolean)  | ||||||||
eq? : (any any -> boolean)  | ||||||||
equal? : (any any -> boolean)  | ||||||||
equal~? : (any any non-negative-real -> boolean)  | ||||||||
eqv? : (any any -> boolean)  | ||||||||
error : (symbol string -> void)  | ||||||||
exit : (-> void)  | ||||||||
identity : (any -> any)  | ||||||||
struct? : (any -> boolean)  |