racket/collects/syntax/scribblings/modcollapse.scrbl
2008-08-29 21:45:38 +00:00

37 lines
1.4 KiB
Racket

#lang scribble/doc
@(require "common.ss"
(for-label syntax/modcollapse))
@title[#:tag "modcollapse"]{Simplifying Module Paths}
@defmodule[syntax/modcollapse]
@defproc[(collapse-module-path [module-path-v module-path?]
[rel-to-module-path-v any/c])
(or/c path? module-path?)]{
Returns a ``simplified'' module path by combining
@scheme[module-path-v] with @scheme[rel-to-module-path-v], where the
latter must have the form @scheme['(lib ....)] or a symbol,
@scheme['(file <string>)], @scheme['(planet ....)], a @techlink[#:doc
refman]{path}, or a thunk to generate one of those.
The result can be a path if @scheme[module-path-v] contains a path
element that is needed for the result, or if
@scheme[rel-to-module-path-v] is a non-string path that is needed for
the result; otherwise, the result is a module path in the sense of
@scheme[module-path?].
When the result is a @scheme['lib] or @scheme['planet] module path, it
is normalized so that equivalent module paths are represented by
@scheme[equal?] results.}
@defproc[(collapse-module-path-index [module-path-index module-path-index?]
[rel-to-module-path-v any/c])
(or/c path? module-path?)]{
Like @scheme[collapse-module-path], but the input is a @techlink[#:doc
refman]{module path index}; in this case, the
@scheme[rel-to-module-path-v] base is used where the module path index
contains the ``self'' index.}