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The .meta file describes properties of a downloadable extension (see eggs tutorial for an explanation of extensions and meta files).
The following properties are supported:
A short description of the extension (required).
The author, optionally with an e-mail address, if desired (required).
(files STRING ...)
The names of all files that should be contained in the egg (required).
The name of the egg file (required).
The license under which the code is released. Please make sure you use the proper license if you package code written by others (required).
A category under which the egg should be listed on the egg-index page at http://www.call-with-current-continuation.org/eggs/index.html (required).
Currently the set of categories is fixed, use one of:
lang-exts Language extensions graphics Graphics debugging Debugging tools net Networking io Input/Output db Databases ffi Interfacing to other languages web Web programming xml XML processing doc-tools Documentation tools math Mathematical libraries oop Object-oriented programming data Algorithms and data-structures parsing Data formats and parsing tools Tools testing Unit-testing crypt Cryptography ui User interface toolkits code-generation Run-time code generation misc Miscellaneous macros Macros and meta-syntax hell Concurrency and parallelism
(needs EXTENSION-ID ...)
Any extensions needed to build and use this extension. This should normally be the raw extension-identifier, the same that you would use in a require-extension form. Alternatively, EXTENSION-ID may be an arbitrary Scheme expression that is evaluated and should return a list of extension-ids. This is intended to test the executing system for particular platform- or installation-specific features before computing a set of required extensions to be available before the installation of the original extension commences.
Marks this extension as having a documentation page in the associated CHICKEN wiki at http://chicken.wiki.br.
Marks this extension as having a documentation page in eggdoc format. The eggdoc file should exist in the extension directory and will be executed when the egg is packaged.
Marks this extension as being "hidden", that is: it is available for download and the documentation page is generated, but it will not appear in the official list (mainly intended for preliminary eggs and testing).
(platform ID ...)
Identifies the platforms where this extension can be used. ID ... should be one or more feature IDs, i.e. symbols returned by build-platform, software-version, software-type, machine-type and machine-byte-order. If a particular type of feature ID is not given, it implies that this egg is portable across all platforms that are described by this type.