84 lines
2.3 KiB
Racket
84 lines
2.3 KiB
Racket
#lang scribble/doc
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@(require "common.rkt" "std-grammar.rkt" "prim-ops.rkt"
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(for-label lang/htdp-beginner))
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@title[#:tag "beginner"]{Beginning Student}
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@declare-exporting[lang/htdp-beginner #:use-sources (lang/htdp-beginner lang/private/teachprims)]
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@racketgrammar*+library[
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#:literals (define define-struct lambda cond else if and or require lib planet
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check-expect check-within check-error)
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(check-expect check-within check-member-of check-range check-error require)
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[program (code:line def-or-expr ...)]
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[def-or-expr definition
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expr
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test-case
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library-require]
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[definition (define (name variable variable ...) expr)
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(define name expr)
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(define name (lambda (variable variable ...) expr))
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(define-struct name (name ...))]
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[expr (code:line (name expr expr ...))
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(cond [expr expr] ... [expr expr])
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(cond [expr expr] ... [else 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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name
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(code:line @#,elem{@racketvalfont{'}@racket[name]})
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number
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boolean
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string
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character]
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]
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@prim-nonterms[("beginner") define define-struct]
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@prim-variables[("beginner") empty true false .. ... .... ..... ......]
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@; --------------------------------------------------
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@section[#:tag "beginner-syntax"]{Syntax}
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@(define-forms/normal define)
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@(define-form/explicit-lambda define lambda)
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@deftogether[(
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@defform/none[(unsyntax @elem{@racketvalfont{'}@racket[name]})]
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@defform[(quote name)]
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)]{
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A quoted @racket[name] is a symbol. A symbol is a value, just like
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@racket[0] or @racket[empty].}
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@(prim-forms ("beginner")
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define
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lambda
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define-struct []
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define-wish
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cond
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else
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if
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and
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or
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check-expect
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check-within
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check-error
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check-member-of
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check-range
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require
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true false
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#:with-beginner-function-call #t
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)
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@; --------------------------------------------------
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@section[#:tag "beginner-pre-defined"]{Pre-defined Functions}
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@(require (submod lang/htdp-beginner procedures))
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@(render-sections (docs) #'here "htdp-beginner")
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@;prim-op-defns[ #'here '()]
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