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;; geiser-guile.el -- guile's implementation of the geiser protocols
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sun Mar 08, 2009 23:03
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3 of the License, or
;; (at your option) any later version.
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Comentary:
;; Implementation of all required Elisp Geiser protocols for Guile.
;;; Code:
(require 'geiser-impl)
(require 'geiser-syntax)
(require 'geiser-custom)
(require 'geiser-base)
;;; Customization:
(defgroup geiser-guile nil
"Customization for Geiser's Guile flavour."
:group 'geiser)
(defcustom geiser-guile-binary
(cond ((eq system-type 'windows-nt) "guile.exe")
((eq system-type 'darwin) "guile")
(t "guile"))
"Name to use to call the Guile executable when starting a REPL."
:type 'string
:group 'geiser-guile)
(defcustom geiser-guile-init-file "~/.guile-geiser"
"Initialization file with user code for the Guile REPL."
:type 'string
:group 'geiser-guile)
;;; REPL support:
(defun geiser-guile-parameters ()
"Return a list with all parameters needed to start Guile.
This function uses `geiser-guile-init-file' if it exists."
(let ((init-file (and (stringp geiser-guile-init-file)
(expand-file-name geiser-guile-init-file))))
`("-p" "-L" ,(expand-file-name "guile/" geiser-scheme-dir)
,@(and init-file (file-readable-p init-file) (list "-l" init-file)))))
(defconst geiser-guile-prompt-regexp "^[^() \n]+@([^)]*?)> ")
;;; Evaluation support:
(defun geiser-guile-geiser-procedure (proc)
"Translate a bare procedure symbol to one executable in Guile's
context. Return NULL for unsupported ones; at the very least,
EVAL, COMPILE, LOAD-FILE and COMPILE-FILE should be supported."
(let ((proc (intern (format "ge:%s" proc))))
`(@ (geiser emacs) ,proc)))
(defconst geiser-guile--module-re
"(define-module +\\(([^)]+)\\)")
(defun geiser-guile-get-module (&optional module)
"Return a scheme datum representing the current module.
If MODULE is provided, transform it to such a datum."
(cond ((null module)
(save-excursion
(goto-char (point-min))
(if (re-search-forward geiser-guile--module-re nil t)
(geiser-guile-get-module (match-string-no-properties 1))
:f)))
((listp module) module)
((stringp module) (or (ignore-errors (car (read-from-string module))) :f))
(t :f)))
;;; Trying to ascertain whether a buffer is Guile Scheme:
(defun geiser-guile-guess ()
"Return `t' if the current buffer looks like a Guile file."
(and (geiser-guile-get-module) t))
;;; Register this implementation:
(geiser-impl--register 'guile)
(provide 'geiser-guile)
;;; geiser-guile.el ends here
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