Basic region/definition/sexp evaluation and autodoc mode working.

5 files changed, 403 insertions, 14 deletions

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
new file mode 100644
index 0000000..cff5794
--- /dev/null
+++ b/elisp/geiser-autodoc.el
@@ -0,0 +1,132 @@
+;; geiser-autodoc.el -- autodoc mode
+
+;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+
+;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
+;; Start date: Sun Feb 08, 2009 19:44
+
+;; 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:
+
+;; A minor mode that echoes information about procedures and variables
+;; near point at the minibuffer.
+
+;;; Code:
+
+(require 'geiser-eval)
+(require 'geiser-syntax)
+(require 'geiser-base)
+
+(require 'eldoc)
+
+
+;;; Customization:
+
+(defgroup geiser-autodoc nil
+  "Options for displaying autodoc strings in the echo area."
+  :group 'geiser)
+
+(defface geiser-font-lock-autodoc-current-arg
+  '((t (:background unspecified :foreground "red" :bold t)))
+  "Face for highlighting current argument in autodoc messages."
+  :group 'faces
+  :group 'geiser-faces
+  :group 'geiser-autodoc)
+
+(defcustom geiser-autodoc-delay 0.2
+  "Delay before autodoc messages are fetched and displayed, in seconds."
+  :type 'number
+  :group 'geiser-autodoc)
+
+
+;;; Procedure arguments:
+
+(make-variable-buffer-local
+ (defvar geiser-autodoc--last nil))
+
+(defun geiser-autodoc--function-args (fun)
+  (if (eq fun (car geiser-autodoc--last))
+      (cdr geiser-autodoc--last)
+    (let* ((cmd `(:gs ((:ge proc-args) ',fun)))
+           (result (geiser-eval--retort-result (geiser-eval--send/wait cmd))))
+      (when (and (not (eq result :f)) (listp result))
+        (setq geiser-autodoc--last (cons fun result))
+        result))))
+
+(defun geiser-autodoc--insert (sym current pos)
+  (let ((str (format "%s" sym)))
+    (when (= current pos)
+      (put-text-property 0 (length str) 'face 'geiser-font-lock-autodoc-current-arg str))
+    (insert str)))
+
+(defun geiser-autodoc--fun-args-str (fun args pos)
+  (save-current-buffer
+    (set-buffer (geiser-syntax--font-lock-buffer))
+    (erase-buffer)
+    (let ((current 0))
+      (insert "(")
+      (geiser-autodoc--insert fun current pos)
+      (dolist (arg (cdr (assoc 'required args)))
+        (setq current (1+ current))
+        (insert " ")
+        (geiser-autodoc--insert arg current pos))
+      (setq current (1+ current))
+      (when (cdr (assoc 'optional args))
+        (when (> pos current) (setq current pos))
+        (insert " . ")
+        (geiser-autodoc--insert (cdr (assoc 'optional args)) current pos))
+      (insert ")")
+      (buffer-string))))
+
+
+;;; Autodoc function:
+
+(defun geiser-autodoc--eldoc-function ()
+  (let* ((f/a (geiser-syntax--enclosing-form-data))
+         (fun (car f/a))
+         (arg-no (cdr f/a)))
+    (when fun
+      (let ((args (geiser-autodoc--function-args fun)))
+        (geiser-autodoc--fun-args-str fun args arg-no)))))
+
+
+;;; Autodoc mode:
+
+(make-variable-buffer-local
+ (defvar geiser-autodoc-mode-string " A"
+   "Modeline indicator for geiser-autodoc-mode"))
+
+(define-minor-mode geiser-autodoc-mode
+  "Toggle Geiser's Autodoc mode.
+With no argument, this command toggles the mode.
+Non-null prefix argument turns on the mode.
+Null prefix argument turns off the mode.
+
+When Autodoc mode is enabled, a synopsis of the word at point is
+displayed in the minibuffer."
+  :init-value nil
+  :lighter geiser-autodoc-mode-string
+  :group 'geiser-autodoc
+
+  (set (make-local-variable 'eldoc-documentation-function)
+       (when geiser-autodoc-mode 'geiser-autodoc--eldoc-function))
+  (set (make-local-variable 'eldoc-minor-mode-string) nil)
+  (set (make-local-variable 'eldoc-idle-delay) geiser-autodoc-delay)
+  (eldoc-mode geiser-autodoc-mode)
+  (message "Geiser Autodoc %s" (if geiser-autodoc-mode "enabled" "disabled")))
+
+
+(provide 'geiser-autodoc)
+;;; geiser-autodoc.el ends here
diff --git a/elisp/geiser-eval.el b/elisp/geiser-eval.el
index 68ef1ca..ee04139 100644
--- a/elisp/geiser-eval.el
+++ b/elisp/geiser-eval.el
@@ -26,6 +26,7 @@
 ;;; Code:
 
 (require 'geiser-connection)
+(require 'geiser-syntax)
 (require 'geiser-log)
 (require 'geiser-base)
 
@@ -38,8 +39,10 @@
         ((eq code :t) "#t")
         ((listp code)
          (cond ((eq (car code) :gs) (geiser-eval--gs (cdr code)))
+               ((eq (car code) :ge) (format "(@ (geiser emacs) %s)" (cadr code)))
                ((eq (car code) :scm) (cadr code))
                (t (concat "(" (mapconcat 'geiser-eval--scheme-str code " ") ")"))))
+        ((symbolp code) (format "%s" code))
         (t (format "%S" code))))
 
 (defsubst geiser-eval--gs (code)
@@ -48,19 +51,8 @@
           ") (quote "
           (or (and (nth 1 code)
                    (geiser-eval--scheme-str (nth 1 code)))
-              (geiser-eval--buffer-module))
+              (geiser-syntax--buffer-module))
           "))"))
-
-;;; Current module:
-
-(defun geiser-eval--buffer-module (&optional buffer)
-  (let ((buffer (or buffer (current-buffer))))
-    (with-current-buffer buffer
-      (save-excursion
-        (goto-char (point-min))
-        (if (re-search-forward "(define-module +\\(([^)]+)\\)" nil t)
-            (match-string-no-properties 1)
-          "#f")))))
 
 
 ;;; Code sending:
@@ -116,6 +108,17 @@
 (defsubst geiser-eval--error-msg (err) (cdr (assoc 'msg err)))
 (defsubst geiser-eval--error-rest (err) (cdr (assoc 'rest err)))
 
+(defun geiser-eval--error-str (err)
+  (let* ((key (geiser-eval--error-key err))
+         (subr (geiser-eval--error-subr err))
+         (subr-str (if subr (format " (%s)" subr) ""))
+         (msg (geiser-eval--error-msg err))
+         (msg-str (if msg (format ": %s" msg) ""))
+         (rest (geiser-eval--error-rest err))
+         (rest-str (if rest (format " %s" rest) "")))
+    (format "Error%s: %s%s%s" subr-str key msg-str rest-str)))
+
+
 
 (provide 'geiser-eval)
 ;;; geiser-eval.el ends here
diff --git a/elisp/geiser-mode.el b/elisp/geiser-mode.el
new file mode 100644
index 0000000..2b6778b
--- /dev/null
+++ b/elisp/geiser-mode.el
@@ -0,0 +1,155 @@
+;; geiser-mode.el -- minor mode for scheme buffers
+
+;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+
+;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
+;; Start date: Sun Feb 08, 2009 15:13
+
+;; 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:
+
+;; Minor mode adding Geiser REPL/Emacs interaction commands to Scheme
+;; buffers.
+
+;;; Code:
+
+(require 'geiser-autodoc)
+(require 'geiser-eval)
+(require 'geiser-popup)
+(require 'geiser-base)
+
+
+;;; Customization:
+
+(defgroup geiser-mode nil
+  "Mode enabling Geiser abilities in Scheme buffers &co.."
+  :group 'geiser)
+
+(defcustom geiser-mode-autodoc-p t
+  "Whether `geiser-autodoc-mode' gets enabled by default in factor buffers."
+  :group 'geiser-mode
+  :group 'geiser-autodoc
+  :type 'boolean)
+
+
+
+;;; Auxiliary functions:
+
+(geiser-popup--define mode "*Geiser evaluation results*" scheme-mode)
+
+(defun geiser-eval--display-error (err output)
+  (if (not output)
+      (message (geiser-eval--error-str err))
+    (geiser-mode--with-buffer
+      (erase-buffer)
+      (insert ";; " (geiser-eval--error-str err))
+      (newline 2)
+      (insert output)
+      (newline))
+    (geiser-mode--pop-to-buffer)))
+
+
+;;; Evaluation commands:
+
+(defun geiser-send-region (start end &optional and-go)
+  "Send the current region to the Geiser REPL.
+With prefix, goes to the REPL buffer afterwards (as
+`geiser-send-region-and-go')"
+  (interactive "rP")
+  (let* ((str (buffer-substring-no-properties start end))
+         (code `(:gs (:scm ,str)))
+         (ret (geiser-eval--send/wait code))
+         (err (geiser-eval--retort-error ret)))
+    (when and-go
+      (switch-to-guile)
+      (push-mark)
+      (goto-char (point-max)))
+    (if (not err)
+        (message (format "=> %s" (geiser-eval--retort-result ret)))
+      (geiser-eval--display-error err (geiser-eval--retort-output ret)))))
+
+(defun geiser-send-region-and-go (start end)
+  "Send the current region to the Geiser REPL and visit it afterwads."
+  (interactive "r")
+  (geiser-send-region start end t))
+
+(defun geiser-send-definition (&optional and-go)
+  "Send the current definition to the Geiser REPL.
+With prefix, goes to the REPL buffer afterwards (as
+`geiser-send-definition-and-go')"
+  (interactive "P")
+  (save-excursion
+    (end-of-defun)
+    (let ((end (point)))
+      (beginning-of-defun)
+      (geiser-send-region (point) end and-go))))
+
+(defun geiser-send-definition-and-go ()
+  "Send the current definition to the Geiser REPL and visit it afterwads."
+  (interactive)
+  (geiser-send-definition t))
+
+(defun geiser-send-last-sexp ()
+  "Send the previous sexp to the Geiser REPL."
+  (interactive)
+  (geiser-send-region (save-excursion (backward-sexp) (point)) (point)))
+
+
+;;; Geiser mode:
+
+(make-variable-buffer-local
+ (defvar geiser-mode-string " Geiser"
+   "Modeline indicator for geiser-mode"))
+
+(defvar geiser-mode-map (make-sparse-keymap)
+  "Key map for geiser-mode")
+
+(define-minor-mode geiser-mode
+  "Toggle Geiser's mode.
+With no argument, this command toggles the mode.
+Non-null prefix argument turns on the mode.
+Null prefix argument turns off the mode.
+
+When Geiser mode is enabled, a host of nice utilities for
+interacting with the Geiser REPL is at your disposal.
+\\{geiser-mode-map}"
+  :init-value nil
+  :lighter geiser-mode-string
+  :group 'geiser
+  :keymap geiser-mode-map
+  (setq geiser-autodoc-mode-string "/A")
+  (when geiser-mode-autodoc-p (geiser-autodoc-mode geiser-mode)))
+
+
+;;; Keys:
+
+(define-key geiser-mode-map "\M-\C-x" 'geiser-send-definition)
+(define-key geiser-mode-map "\C-c\C-a" 'geiser-autodoc-mode)
+(define-key geiser-mode-map "\C-x\C-e" 'geiser-send-last-sexp)
+(define-key geiser-mode-map "\C-c\C-e" 'geiser-send-definition)
+(define-key geiser-mode-map "\C-c\M-e" 'geiser-send-definition-and-go)
+(define-key geiser-mode-map "\C-c\C-r" 'geiser-send-region)
+(define-key geiser-mode-map "\C-c\M-r" 'geiser-send-region-and-go)
+(define-key geiser-mode-map "\C-c\M-c" 'geiser-compile-definition)
+(define-key geiser-mode-map "\C-c\C-c" 'geiser-compile-definition-and-go)
+(define-key geiser-mode-map "\C-c\C-t" 'geiser-trace-procedure)
+(define-key geiser-mode-map "\C-c\C-x" 'geiser-expand-current-form)
+(define-key geiser-mode-map "\C-c\C-z" 'switch-to-guile)
+(define-key geiser-mode-map "\C-c\C-l" 'geiser-load-file)
+(define-key geiser-mode-map "\C-c\C-k" 'geiser-compile-file)
+
+
+(provide 'geiser-mode)
+;;; geiser-mode.el ends here
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
new file mode 100644
index 0000000..07aafbb
--- /dev/null
+++ b/elisp/geiser-syntax.el
@@ -0,0 +1,96 @@
+;; geiser-syntax.el -- guile-specific scheme syntax
+
+;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+
+;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
+;; Start date: Sun Feb 08, 2009 15:03
+
+;; 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:
+
+;; Utilities for parsing Guile-specific Scheme syntax.
+
+;;; Code:
+
+(require 'geiser-base)
+
+(require 'scheme)
+
+
+;;; Modules:
+
+(defconst geiser-syntax--module-definition-re
+  "(define-module +\\(([^)]+)\\)")
+
+(defun geiser-syntax--buffer-module (&optional buffer)
+  (let ((buffer (or buffer (current-buffer))))
+    (with-current-buffer buffer
+      (save-excursion
+        (goto-char (point-min))
+        (if (re-search-forward geiser-syntax--module-definition-re nil t)
+            (match-string-no-properties 1)
+          "#f")))))
+
+;;; Indentation:
+
+(defun geiser-syntax--setup-scheme-indent ()
+  (let ((defuns '(catch)))
+    (mapc (lambda (d) (put d 'scheme-indent-function 'defun)) defuns)))
+
+
+;;; Code parsing:
+
+(defun geiser-syntax--enclosing-form-data ()
+  (save-excursion
+    (let ((p (progn (ignore-errors
+                      (unless (zerop (car (syntax-after (point))))
+                        (forward-sexp)
+                        (when (= 7 (car (syntax-after (point))))
+                          (forward-char))))
+                    (point)))
+          (arg-no 0)
+          (proc))
+      (condition-case nil
+          (progn (backward-up-list)
+                 (forward-char)
+                 (setq proc (symbol-at-point))
+                 (while (< (point) p)
+                   (forward-sexp)
+                   (when (< (point) p) (setq arg-no (1+ arg-no))))
+                 (cons proc arg-no))
+        (error nil)))))
+
+
+;;; Fontify strings as Scheme code:
+
+(defun geiser-syntax--font-lock-buffer ()
+  (let ((name " *geiser font lock*"))
+    (or (get-buffer name)
+        (let ((buffer (get-buffer-create name)))
+          (set-buffer buffer)
+          (scheme-mode)
+          buffer))))
+
+(defun geiser-syntax--scheme-str (str)
+  (save-current-buffer
+    (set-buffer (geiser-syntax--font-lock-buffer))
+    (erase-buffer)
+    (insert str)
+    (let ((font-lock-verbose nil)) (font-lock-fontify-buffer))
+    (buffer-string)))
+
+
+(provide 'geiser-syntax)
+;;; geiser-syntax.el ends here
diff --git a/elisp/geiser.el b/elisp/geiser.el
index 2ce4e82..ab3e7ff 100644
--- a/elisp/geiser.el
+++ b/elisp/geiser.el
@@ -46,10 +46,13 @@
 ;;; Autoloads:
 
 (autoload 'run-guile "geiser-repl.el"
-  "Start a Geiser Guile REPL, or switch to a running one" t)
+  "Start a Geiser Guile REPL, or switch to a running one." t)
 
 (autoload 'switch-to-guile "geiser-repl.el"
-  "Start a Geiser Guile REPL, or switch to a running one" t)
+  "Start a Geiser Guile REPL, or switch to a running one." t)
+
+(autoload 'geiser-mode "geiser-mode.el"
+  "Minor mode adding Geiser REPL interaction to Scheme buffers." t)
 
 
 (provide 'geiser)