dev-elider-3
Matthew Butterick 9 years ago
parent 5403931dfa
commit fc92d0abfc

@ -0,0 +1,250 @@
#reader(lib"read.ss""wxme")WXME0108 ##
#|
This file uses the GRacket editor format.
Open this file in DrRacket version 6.4.0.15 or later to read it.
Most likely, it was created by saving a program in DrRacket,
and it probably contains a program with non-text elements
(such as images or comment boxes).
http://racket-lang.org/
|#
22 7 #"wxtext\0"
3 1 6 #"wxtab\0"
1 1 8 #"wximage\0"
2 0 8 #"wxmedia\0"
4 1 34 #"(lib \"syntax-browser.ss\" \"mrlib\")\0"
1 0 16 #"drscheme:number\0"
3 0 44 #"(lib \"number-snip.ss\" \"drscheme\" \"private\")\0"
1 0 36 #"(lib \"comment-snip.ss\" \"framework\")\0"
1 0 93
(
#"((lib \"collapsed-snipclass.ss\" \"framework\") (lib \"collapsed-sni"
#"pclass-wxme.ss\" \"framework\"))\0"
) 0 0 43 #"(lib \"collapsed-snipclass.ss\" \"framework\")\0"
0 0 19 #"drscheme:sexp-snip\0"
0 0 36 #"(lib \"cache-image-snip.ss\" \"mrlib\")\0"
1 0 68
(
#"((lib \"image-core.ss\" \"mrlib\") (lib \"image-core-wxme.rkt\" \"mr"
#"lib\"))\0"
) 1 0 29 #"drscheme:bindings-snipclass%\0"
1 0 101
(
#"((lib \"ellipsis-snip.rkt\" \"drracket\" \"private\") (lib \"ellipsi"
#"s-snip-wxme.rkt\" \"drracket\" \"private\"))\0"
) 2 0 88
(
#"((lib \"pict-snip.rkt\" \"drracket\" \"private\") (lib \"pict-snip.r"
#"kt\" \"drracket\" \"private\"))\0"
) 0 0 34 #"(lib \"bullet-snip.rkt\" \"browser\")\0"
0 0 25 #"(lib \"matrix.ss\" \"htdp\")\0"
1 0 22 #"drscheme:lambda-snip%\0"
1 0 29 #"drclickable-string-snipclass\0"
0 0 26 #"drracket:spacer-snipclass\0"
0 0 57
#"(lib \"hrule-snip.rkt\" \"macro-debugger\" \"syntax-browser\")\0"
1 0 1 6 #"wxloc\0"
0 0 64 0 1 #"\0"
0 75 1 #"\0"
0 12 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 0 9
#"Standard\0"
0 75 15 #"Triplicate T3c\0"
0 16 90 -1 90 -1 3 -1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 255 255 255 1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 -1 -1 2 24
#"framework:default-color\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 255 255 255 -1 -1 2
1 #"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 150 0 150 0 0 0 -1 -1 2 15
#"text:ports out\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 119 34 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1.0 0 -1 -1 93 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 255 0 0 0 0 0 -1
-1 2 15 #"text:ports err\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 136 17 17 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 0 0 175 0 0 0 -1 -1 2 17
#"text:ports value\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 34 119 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 34 139 34 0 0 0 -1
-1 2 27 #"Matching Parenthesis Style\0"
0 -1 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 34 139 34 0 0 0 -1
-1 2 1 #"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 38 38 128 0 0 0 -1 -1 2 37
#"framework:syntax-color:scheme:symbol\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 34 119 0 0 0 -1 -1 2 38
#"framework:syntax-color:scheme:keyword\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 34 119 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 194 116 31 0 0 0 -1 -1 2
38 #"framework:syntax-color:scheme:comment\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 119 34 119 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 41 128 38 0 0 0 -1 -1 2 37
#"framework:syntax-color:scheme:string\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 119 34 0 0 0 -1 -1 2 35
#"framework:syntax-color:scheme:text\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 119 34 0 0 0 -1 -1 2 39
#"framework:syntax-color:scheme:constant\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 119 34 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 132 60 36 0 0 0 -1 -1 2 49
#"framework:syntax-color:scheme:hash-colon-keyword\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 119 34 0 0 0 -1 -1 2 42
#"framework:syntax-color:scheme:parenthesis\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 0 178 178 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 255 0 0 0 0 0 -1 -1 2 36
#"framework:syntax-color:scheme:error\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 136 17 17 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 -1 -1 2 36
#"framework:syntax-color:scheme:other\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 34 34 119 0 0 0 -1 -1 2 16
#"Misspelled Text\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 81 112 203 0 0 0 -1 -1 2
38 #"drracket:check-syntax:lexically-bound\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 81 112 203 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 178 34 34 0 0 0 -1 -1 2 28
#"drracket:check-syntax:set!d\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 136 17 17 0 0 0 -1 -1 2 37
#"drracket:check-syntax:unused-require\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 136 17 17 0 0 0 -1 -1 2 36
#"drracket:check-syntax:free-variable\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 136 17 17 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 68 0 203 0 0 0 -1 -1 2 31
#"drracket:check-syntax:imported\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 68 0 203 0 0 0 -1 -1 2 47
#"drracket:check-syntax:my-obligation-style-pref\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 178 34 34 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 0 116 0 0 0 0 -1 -1 2 50
#"drracket:check-syntax:their-obligation-style-pref\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 0 116 0 0 0 0 -1 -1 2 48
#"drracket:check-syntax:unk-obligation-style-pref\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 139 142 28 0 0 0 -1 -1 2
49 #"drracket:check-syntax:both-obligation-style-pref\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 139 142 28 0 0 0 -1 -1 2
37 #"plt:module-language:test-coverage-on\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 -1 -1 2 1
#"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 1 0 0 0 0 0 0 255 165 0 0 0 0 -1 -1 2 38
#"plt:module-language:test-coverage-off\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 93 -1 -1 0 1 0 0 0 1 0 0 0 0 0 0 255 165 0 0 0 0 -1 -1 4 1
#"\0"
0 71 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
-1 -1 4 1 #"\0"
0 -1 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 1 0 0 0 0 0 0 0 0 1.0 1.0 1.0 0 0 255 0 0 0 -1
-1 4 1 #"\0"
0 71 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 1 0 0 0 0 0 0 0 0 1.0 1.0 1.0 0 0 255 0 0 0 -1
-1 4 1 #"\0"
0 71 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 0 100 0 0 0 0 -1
-1 4 1 #"\0"
0 -1 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 255 255 0 -1 -1 2
1 #"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 200 0 0 0 0 0 -1 -1 0 1
#"\0"
0 75 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
-1 -1 2 1 #"\0"
0 75 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
-1 -1 2 1 #"\0"
0 75 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 255 255 255 -1 -1
2 1 #"\0"
0 75 1 #"\0"
1.0 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 0 0 0 34 139 34 255 255 255 -1
-1 2 1 #"\0"
0 -1 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 36 36 140 0 0 0 -1
-1 2 1 #"\0"
0 -1 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
-1 -1 2 1 #"\0"
0 -1 1 #"\0"
0 4 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0 -1
-1 2 1 #"\0"
0 75 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1.0 1.0 1.0 36 36 140 0 0 0 -1
-1 2 1 #"\0"
0 75 1 #"\0"
1.0 0 92 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0
-1 -1 2 1 #"\0"
0 75 1 #"\0"
0 4 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1.0 1.0 1.0 1.0 1.0 1.0 0 0 0 0 0 0 -1
-1 4 1 #"\0"
0 -1 1 #"\0"
1 0 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 -1 -1
0 13 0 28 3 19 #"#lang br/demo/basic"
0 0 24 29 1 #"\n"
0 0 24 29 1 #"\n"
0 0 21 3 2 #"50"
0 0 24 3 1 #" "
0 0 14 3 5 #"PRINT"
0 0 24 3 1 #" "
0 0 14 3 3 #"INT"
0 0 24 3 1 #"("
0 0 14 3 3 #"RND"
0 0 24 3 1 #"("
0 0 21 3 2 #"10"
0 0 24 3 2 #"))"
0 0

@ -16,10 +16,10 @@
(displayln (format "got unbound identifier: ~a" 'id)) (displayln (format "got unbound identifier: ~a" 'id))
(procedure-rename (λ xs (cons 'id xs)) (format-datum "undefined:~a" 'id)))) (procedure-rename (λ xs (cons 'id xs)) (format-datum "undefined:~a" 'id))))
(define #'(basic-program CR-LINE ...) (define #'(program LINE ...)
#'(basic-run CR-LINE ...)) #'(run (list LINE ...)))
(define (basic-run . lines) (define (run lines)
(define program-lines (list->vector (filter (λ(ln) (not (equal? ln "cr"))) lines))) (define program-lines (list->vector (filter (λ(ln) (not (equal? ln "cr"))) lines)))
(void (for/fold ([line-idx 0]) (void (for/fold ([line-idx 0])
([i (in-naturals)] ([i (in-naturals)]
@ -52,7 +52,12 @@
[#'(value ID "(" ARG ... ")") #'(ID ARG ...)] [#'(value ID "(" ARG ... ")") #'(ID ARG ...)]
[#'(value ID-OR-DATUM) #'(hash-ref vars 'ID-OR-DATUM (λ _ ID-OR-DATUM))]) [#'(value ID-OR-DATUM) #'(hash-ref vars 'ID-OR-DATUM (λ _ ID-OR-DATUM))])
(define #'(expr EXPR) #'EXPR) (define-cases expr
[(_ lexpr op rexpr) (if (op lexpr rexpr)
1
0)]
[(_ expr) expr])
(provide < > <= >=)
(define-cases sum (define-cases sum
[(_ term op sum) (op term sum)] [(_ term op sum) (op term sum)]
@ -76,6 +81,7 @@
(define (TAB num) (make-string num #\space)) (define (TAB num) (make-string num #\space))
(define (INT num) (inexact->exact (round num))) (define (INT num) (inexact->exact (round num)))
(define (SIN num) (sin num)) (define (SIN num) (sin num))
(define (RND num) (* (random) num))
(define (GOTO where) (define (GOTO where)
where) where)

@ -1,6 +1,7 @@
#lang ragg #lang ragg
basic-program : line [CR line]* ;; recursive rules destucture easily in the expander
program : line [CR line]*
line: INTEGER statement+ line: INTEGER statement+
@ -16,14 +17,13 @@ statement : "END"
print-list : [expr [";" [print-list]]] print-list : [expr [";" [print-list]]]
expr : sum [("=" | ">" | "<" | "<>") expr] expr : sum [("=" | ">" | ">=" | "<" | "<=" | "<>") expr]
sum : product [("+" | "-") sum] sum : product [("+" | "-") sum]
product : value [("*" | "/") product] product : value [("*" | "/") product]
value : "(" expr ")" value : ID ["(" expr* ")"]
| ID ["(" expr* ")"]
| INTEGER | INTEGER
| STRING | STRING
| REAL | REAL

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