Catalog files consist of one or more association lists. In the circumstance where a feature symbol appears in more than one list, the latter list’s association is retrieved. Here are the supported formats for elements of catalog lists:
(feature . <symbol>)
Redirects to the feature named <symbol>.
(feature . "<path>")
Loads file <path>.
(feature source "<path>")
¶slib:load
s the Scheme source file <path>.
(feature compiled "<path>" …)
¶slib:load-compiled
s the files <path> ….
(feature aggregate <symbol> …)
¶require
s the features <symbol> ….
The various macro styles first require
the named macro package,
then just load <path> or load-and-macro-expand <path> as
appropriate for the implementation.
(feature defmacro "<path>")
¶defmacro:load
s the Scheme source file <path>.
(feature macro-by-example "<path>")
¶defmacro:load
s the Scheme source file <path>.
(feature macro "<path>")
¶macro:load
s the Scheme source file <path>.
(feature macros-that-work "<path>")
¶macro:load
s the Scheme source file <path>.
(feature syntax-case "<path>")
¶macro:load
s the Scheme source file <path>.
(feature syntactic-closures "<path>")
¶macro:load
s the Scheme source file <path>.
Note that file names indicated as <path> may have “.scm” or another suffix appended to them, depending on the specific Scheme system you are using.