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Document ~e from racket/format.

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This commit is contained in:
Sam Tobin-Hochstadt 2012-09-27 18:29:55 -04:00
parent d84631bc6f
commit 3b37d64936
1 changed files with 28 additions and 0 deletions
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28
collects/scribblings/reference/format.scrbl
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@ -175,6 +175,34 @@ marker is @racket["..."].
@;{----------------------------------------} @;{----------------------------------------}
@defproc[(~e [v any/c] ...
[#:separator separator string? " "]
[#:width width (or/c exact-nonnegative-integer? #f) #f]
[#:max-width max-width (or/c exact-nonnegative-integer? +inf.0) (or width +inf.0)]
[#:min-width min-width exact-nonnegative-integer? (or width 0)]
[#:limit-marker limit-marker string? "..."]
[#:align align (or/c 'left 'center 'right) 'left]
[#:pad-string pad-string non-empty-string? " "]
[#:left-pad-string left-pad-string non-empty-string? pad-string]
[#:right-pad-string right-pad-string non-empty-string? pad-string])
string?]{
Like @racket[~a], but each value is converted like @racket[(format
"~e" v)], the default separator is @racket[" "], and the default limit
marker is @racket["..."].
@interaction[#:eval the-eval
(~e "north")
(~e 'south)
(~e #"east")
(~e #\w)
(~e (list "red" 'green #"blue"))
]
}
@;{----------------------------------------}
@defproc[(~r [x rational?] @defproc[(~r [x rational?]
[#:sign sign [#:sign sign
(or/c #f '+ '++ 'parens (or/c #f '+ '++ 'parens