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Minor edits to `for/vector' docs.

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This commit is contained in:
Sam Tobin-Hochstadt 2010-09-09 17:08:09 -04:00
parent 81b1ed6e8b
commit dca895c129
2 changed files with 8 additions and 9 deletions
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6
collects/scribblings/guide/for.scrbl
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@ -214,7 +214,7 @@ form normally suffices with @racket[for], a @racket[when] expression
form in a @racket[for/list] would cause the result list to contain
@|void-const|s instead of omitting list elements.
The @racket[for*/list] is like @racket[for*], nesting multiple
The @racket[for*/list] form is like @racket[for*], nesting multiple
iterations:
@interaction[
@ -241,8 +241,8 @@ newly-constructed vector instead of a list:
(string-append (number->string i) ". " chapter))
]
The @racket[for*/vector] behaves similarly, but the iterations are
nested.
The @racket[for*/vector] form behaves similarly, but the iterations are
nested as in @racket[for*].
The @racket[for/vector] and @racket[for*/vector] forms also allow the
length of the vector to be constructed to be supplied in advance. The

11
collects/scribblings/reference/for.scrbl
View File

@ -86,13 +86,10 @@ expression is a list of the results in order.
(error "doesn't get here"))
]}
@deftogether[(
@defform*[((for/vector (for-clause ...) body ...)
(for/vector #:length length-expr (for-clause ...) body ...))]
@defform*[((for*/vector (for-clause ...) body ...)
(for*/vector #:length length-expr (for-clause ...) body ...))])]{
@defform*[((for/vector (for-clause ...) body ...+)
(for/vector #:length length-expr (for-clause ...) body ...+))]{
Iterates like @scheme[for] or @scheme[for*], but the last expression
Iterates like @scheme[for], but the last expression
in the @scheme[body]s must produce a single value, which is placed in
the corresponding slot of a vector. If the optional @scheme[#:length]
form is used, then @scheme[length-expr] must evaluate to an
@ -231,6 +228,8 @@ nested.
@deftogether[(
@defform[(for*/list (for-clause ...) body ...+)]
@defform[(for*/lists (id ...) (for-clause ...) body ...+)]
@defform*[((for*/vector (for-clause ...) body ...+)
(for*/vector #:length length-expr (for-clause ...) body ...+))]
@defform[(for*/hash (for-clause ...) body ...+)]
@defform[(for*/hasheq (for-clause ...) body ...+)]
@defform[(for*/hasheqv (for-clause ...) body ...+)]