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authorJose Antonio Ortega Ruiz <jao@gnu.org>2010-10-15 17:05:49 +0200
committerJose Antonio Ortega Ruiz <jao@gnu.org>2010-10-15 17:05:49 +0200
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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 identifier 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 identifier at point.
- - Access to documentation (including docstrings when the
- implementation provides it).
- - Listings of identifiers exported by a given module.
- - Listings of callers/callees of procedures.
- - Rudimentary support for debugging (list of
- evaluation/compilation error in an Emacs' compilation-mode
- buffer).
-
- NOTE: if you're not in a hurry, Geiser's website,
- http://www.nongnu.org/geiser/ contains a nicer manual, also
- included in Geiser tarballs as a texinfo file (doc/geiser.info).
-
-* Supported scheme implementations
-
- - Guile 2.0 (not released yet: use the latest git master branch).
- - PLT Racket 5.0.1 or better.
-
-* Installation
- Geiser can be used either directly from its uninstalled source tree
- or byte-compiled and installed after perfoming the standard
- configure/make/make install dance.
-
-*** In place
- - Extract the tarball or clone the git repository anywhere in your
- file system. Let's call that place <path-to-geiser>.
- - In your .emacs:
-
- (load-file "<path-to-geiser>/elisp/geiser.el")
-
-*** Byte-compiled
- - Create a build directory, `build', say:
- $ cd <path-to-geiser>
- $ mkdir build; cd build
- - Configure and make:
- $ ../configure && make
-
- Now, you can use the byte-compiled Geiser in place by adding to
- your .emacs:
-
- (load "<path-to-geiser>/build/elisp/geiser-load")
-
- or, alternatively, install it with:
-
- $ make install
-
- (you might need to get root access, depending on your installation
- directory) and, instead of the above load forms, require
- 'geiser-install (not 'geiser, mind you) in your emacs
- initialization file:
-
- (require 'geiser-install)
-
- You're ready to go!
-
-* Basic configuration
- The loading invocations above install all supported Scheme
- implementations. You can list explicitly the ones that you want by
- setting the variable `geiser-impl-installed-implementations' *before*
- loading geiser.el. For instance:
-
- (setq geiser-impl-installed-implementations '(racket guile))
-
- On opening a scheme file, Geiser will try to guess its Scheme,
- defaulting to the first in the list. Use `C-c C-s' to select the
- implementation by hand (on a per file basis).
-
- Check the geiser customization group for some options with:
-
- M-x customize-group RET geiser RET
-
- In particular, customize `geiser-<impl>-binary', which should point
- to an executable in your path.
-
- To start a REPL, M-x geiser.
-
-*** Completion with company-mode
- Geiser offers identifier and module name completion, bound to
- M-TAB and M-` respectively. Only names visible in the current
- module are offered.
-
- While that is cool and all, things are even better: if you have
- [[http://nschum.de/src/emacs/company-mode/][company-mode]] installed, Geiser's completion will use it. Just
- require company-mode and, from then on, any new scheme buffer or
- REPL will use it. If you didn't know about Nikolaj Schumacher's
- awesome mode, check [[http://www.screentoaster.com/watch/stU0lSRERIR1pYRFVdXVlRVFFV/company_mode_for_gnu_emacs][this screencast]].
-
-* Quick key reference
-
-*** In Scheme buffers:
-
- |---------------------+-------------------------------------------------|
- | C-c C-z | Switch to REPL |
- | C-u C-c C-z | Switch to REPL and current module |
- | C-c C-s | Specify Scheme implementation for buffer |
- |---------------------+-------------------------------------------------|
- | M-. | Go to definition of identifier at point |
- | M-, | Go back to where M-. was last invoked |
- | C-c C-e m | Ask for a module and open its file |
- |---------------------+-------------------------------------------------|
- | C-M-x | Eval definition around point |
- | C-c M-e | Eval definition around point and switch to REPL |
- | C-x C-e | Eval sexp before point |
- | C-c C-r | Eval region |
- | C-c M-r | Eval region and switch to REPL |
- |---------------------+-------------------------------------------------|
- | C-c C-m x | Macro-expand definition around point |
- | C-c C-m e | Macro-expand sexp before point |
- | C-c C-m r | Marcro-expand region |
- | C-u C-c C-m [x,e,r] | (With prefix, macro expansions are recursive) |
- |---------------------+-------------------------------------------------|
- | C-c C-k | Compile and load current file |
- | C-c C-l | Load current file |
- |---------------------+-------------------------------------------------|
- | C-c C-d d | See documentation for identifier at point |
- | C-c C-d m | See a list of a module's exported identifiers |
- | C-c C-d a | Toggle autodoc mode |
- |---------------------+-------------------------------------------------|
- | C-c< | Show callers of procedure at point |
- | C-c> | Show callees of procedure at point |
- | C-c C-x f | See a generic's methods signatures |
- |---------------------+-------------------------------------------------|
- | M-TAB | Complete identifier at point |
- | M-`, C-. | Complete module name at point |
- | TAB | Complete identifier at point or indent |
- | | (If `geiser-mode-smart-tab-p' is t) |
- |---------------------+-------------------------------------------------|
-
-*** In the REPL
-
- |-------------+----------------------------------------------------|
- | C-c C-z | Start Scheme REPL, or jump to previous buffer |
- | C-c C-q | Kill Scheme process |
- |-------------+----------------------------------------------------|
- | M-. | Edit identifier at point |
- | TAB, M-TAB | Complete identifier at point |
- | M-`, C-. | Complete module name at point |
- |-------------+----------------------------------------------------|
- | M-p, M-n | Prompt history, matching current prefix |
- |-------------+----------------------------------------------------|
- | C-c C-k | Nuke REPL: use it if the REPL becomes unresponsive |
- |-------------+----------------------------------------------------|
- | C-c C-m | Set current module |
- | C-c C-i | Import module into current namespace |
- | C-c C-l | Load scheme file |
- |-------------+----------------------------------------------------|
- | C-c C-d C-d | See documentation for symbol at point |
- | C-c C-d C-m | See documentation for module |
- | C-c C-d C-a | Toggle autodoc mode |
- |-------------+----------------------------------------------------|
-
-*** In the documentation browser:
-
- |------------+----------------------------------------------|
- | n, f | Next page |
- | p, b | Previous page |
- | TAB, S-TAB | Next/previous link |
- | k | Kill current page and go to previous or next |
- | g, r | Refresh page |
- | c | Clear browsing history |
- | ., M-. | Edit identifier at point |
- | z | Switch to REPL |
- | q | Bury buffer |
- |------------+----------------------------------------------|
-
-*** In backtrace (evaluation/compile result) buffers:
-
- - TAB, M-TAB for error navigation.
- - q to bury buffer.