ac26fe7554
Also, updates some of the mzlib files to point at `racket/*' libraries rather than to `scheme/*' ones.
50 lines
1.2 KiB
Racket
50 lines
1.2 KiB
Racket
#lang scribble/doc
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@(require "common.rkt")
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@definterface/title[snip-class-list<%> ()]{
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Each eventspace has its own instance of @racket[snip-class-list<%>],
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obtained with @racket[(get-the-snip-class-list)]. New instances
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cannot be created directly. Each instance keeps a list of snip
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classes. This list is needed for loading snips from a file. See also
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@|snipclassdiscuss|.
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@defmethod[(add [snipclass (is-a?/c snip-class%)])
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void?]{
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Adds a snip class to the list. If a class with the same name already
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exists in the list, this one will not be added.
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}
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@defmethod[(find [name string?])
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(or/c (is-a?/c snip-class%) false/c)]{
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Finds a snip class from the list with the given name, returning
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@racket[#f] if none is found.
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}
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@defmethod[(find-position [class (is-a?/c snip-class%)])
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exact-nonnegative-integer?]{
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Returns an index into the list for the specified class.
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}
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@defmethod[(nth [n exact-nonnegative-integer?])
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(or/c (is-a?/c snip-class%) false/c)]{
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Returns the @racket[n]th class in the list, or @racket[#f] if
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the list has @racket[n] classes or less.
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}
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@defmethod[(number)
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exact-nonnegative-integer?]{
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Returns the number of snip classes in the list.
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}}
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