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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-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 '(choice string (repeat 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)
(defcustom geiser-guile-use-compiler-in-eval t
"When enable, always use Guile's compiler to perform evaluation.
Recommended, since the compiler usually collects better metadata
than the interpreter."
:type 'boolean
:group 'geiser-guile)
;;; REPL support:
(defun geiser-guile-binary ()
(if (listp geiser-guile-binary) (car geiser-guile-binary) geiser-guile-binary))
(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))))
`(,@(and (listp geiser-guile-binary) (cdr geiser-guile-binary))
"-q" "-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]+@([^)]*?)> ")
(defun switch-to-guile (&optional ask)
(interactive "P")
(switch-to-geiser ask 'guile))
(defun run-guile ()
"Run Geiser using Guile."
(interactive)
(run-geiser 'guile))
;;; Evaluation support:
(defun geiser-guile-geiser-procedure (proc)
(let ((proc (intern (format "ge:%s"
(if (and geiser-guile-use-compiler-in-eval
(eq proc 'eval))
'compile
proc)))))
`(@ (geiser emacs) ,proc)))
(defconst geiser-guile--module-re
"(define-module +\\(([^)]+)\\)")
(defun geiser-guile-get-module (&optional module)
(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)))
(defun geiser-guile-symbol-begin (module)
(if module
(max (save-excursion (beginning-of-line) (point))
(save-excursion (skip-syntax-backward "^(>") (1- (point))))
(save-excursion (skip-syntax-backward "^-()>") (point))))
;;; Trying to ascertain whether a buffer is Guile Scheme:
(defun geiser-guile-guess ()
"Return `t' if the current buffer looks like a Guile file."
(listp (geiser-guile-get-module)))
(provide 'geiser-guile)
;;; geiser-guile.el ends here
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