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authorJose Antonio Ortega Ruiz <jao@gnu.org>2009-05-14 00:00:22 +0200
committerJose Antonio Ortega Ruiz <jao@gnu.org>2009-05-14 00:00:22 +0200
commitb177aa7ae5b8a8b638574e595bf7f8cbb8f464f7 (patch)
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README updates.
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+* Overview
+
+ Geiser is a generic Emacs/Scheme interaction mode, featuring an
+ enhanced REPL and a set of minor modes improving Emacs' basic scheme
+ major mode. The main functionalities provided are:
+
+ - Evaluation of forms in the namespace of the current module.
+ - Macro expansion.
+ - File/module loading.
+ - Namespace-aware symbol completion (including local bindings,
+ names visible in the current module, and module names).
+ - Autodoc: the echo area shows information about the signature of
+ the procedure/macro around point automatically.
+ - Jump to definition of symbol at point.
+ - Access to documentation (including docstrings when the
+ implementation provides it).
+ - Listings of callers/callees of procedures.
+ - Rudimentary support for debugging (list of
+ evaluation/compilation error in an Emacs' compilation-mode
+ buffer).
+
+ Currently supported implementations are Guile and PLT.
* Installation
- In your .emacs:
- (load-file "<path-to-geiser>/elisp/geiser.el")
- (geiser-setup)
+ (load-file "<path-to-geiser>/elisp/geiser.el")
+ (geiser-setup)
+
+ This installs all supported Scheme implementations. You can list
+ explicitly the ones that you want, e.g.:
+
+ (geiser-setup 'plt 'guile)
+
+ On opening a scheme file, Geiser will try to guess its Scheme,
+ defaulting to the first in the list.
- Check the geiser customization group for some options with:
M-x customize-group RET geiser RET
- In particular, customize `geiser-repl-guile-binary' (in
- geiser-repl), which should point to a guile-vm executable.
+ In particular, customize `geiser-repl-<impl>-binary' (in
+ geiser-repl), which should point to an executable in your path.
- To start a REPL, M-x geiser.
+*** Implementation caveats
+
+ - Guile works only with the development, vm-based binary. Be sure
+ to customize `geiser-repl-guile-binary' to point to a correct vm
+ binary.
+ - PLT Scheme 4.1.5.5 and up is recommended. Listing of
+ callers/callees is not available.
+
* Quick key reference
*** In Scheme buffers:
@@ -91,5 +129,6 @@
*** In backtrace (evaluation/compile result) buffers:
- - Default error navigation keys used by emacs' compilation mode.
+ - Default error navigation keys used by Emacs' compilation mode
+ (e.g. M-gn, M-gp for next/previous error).
- q to bury buffer.