suzanne.soy/extensible-parser-specifications
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Tried to document with scribble/example, but it turns out the order is not reliable for ~global

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Georges Dupéron 2016-09-19 20:38:01 +02:00
parent 9604795055
commit cedb955313
1 changed files with 11 additions and 4 deletions
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15
scribblings/extensible-parser-specifications.scrbl
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@ -1,10 +1,16 @@
#lang scribble/manual #lang scribble/manual
@require[@for-label[phc-toolkit/untyped @require[scribble/example
@for-label[phc-toolkit/untyped
extensible-parser-specifications extensible-parser-specifications
generic-syntax-expanders generic-syntax-expanders
racket/base racket/base
syntax/parse
(only-in racket/base [... …])]] (only-in racket/base [... …])]]
@(define make-evaluator
(make-eval-factory '(syntax/parse
extensible-parser-specifications)))
@title{extensible-parser-specifications} @title{extensible-parser-specifications}
@author{@author+email["Georges Dupéron" "georges.duperon@gmail.com"]} @author{@author+email["Georges Dupéron" "georges.duperon@gmail.com"]}
@ -286,9 +292,10 @@ the notion of order irrelevant.
value within any @racket[valueᵢ] group is @racket[#f], then the value within any @racket[valueᵢ] group is @racket[#f], then the
@racket[_attribute-name] is bound to @racket[#f]. @racket[_attribute-name] is bound to @racket[#f].
For example, the following code produces @racket[6]: @examples[
#:eval (make-evaluator)
@racketblock[ #:once
#:label "For example, the following code produces 6:"
(syntax-parse #'(1 ya (2 3) 4 yb (5 6) yc 7) (syntax-parse #'(1 ya (2 3) 4 yb (5 6) yc 7)
[(~no-order {~and x:id {~global-and [g (syntax-e #'x)]}} [(~no-order {~and x:id {~global-and [g (syntax-e #'x)]}}
{~global-and [g (syntax-e #'y)] y:number} {~global-and [g (syntax-e #'y)] y:number}