;;; assistant.el --- guiding users through Emacs setup
-;; Copyright (C) 2004 Free Software Foundation, Inc.
+;; Copyright (C) 2004, 2005 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: util
;; GNU Emacs 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 2, or (at your option)
+;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
(require 'widget)
(require 'wid-edit)
+(autoload 'gnus-error "gnus-util")
+(autoload 'netrc-get "netrc")
+(autoload 'netrc-machine "netrc")
+(autoload 'netrc-parse "netrc")
+
(defvar assistant-readers
'(("variable" assistant-variable-reader)
("validate" assistant-sexp-reader)
("next" assistant-list-reader)
("text" assistant-text-reader)))
-(defface assistant-field-face '((t (:bold t)))
+(defface assistant-field '((t (:bold t)))
"Face used for editable fields."
:group 'gnus-article-emphasis)
+;; backward-compatibility alias
+(put 'assistant-field-face 'face-alias 'assistant-field)
;;; Internal variables
(forward-line 1)))
(skip-chars-forward " \t")
(prog1
- (buffer-substring (point) (line-end-position))
+ (buffer-substring (point) (point-at-eol))
(forward-line 1))))
(push (list command (assistant-reader command value))
results))
(pop ast))
(car ast)))
+(defun assistant-node-name (node)
+ (assistant-get node "node"))
+
(defun assistant-previous-node-text (node)
(format "<< Go back to %s" node))
(setq result (if raw (nth 3 elem)
(format "%s" (nth 3 elem)))))))
result))
-
+
(defun assistant-set-variable (node variable value)
(let ((variables (assistant-get-list node "variable"))
elem)
(setq elem (cadr elem))
(when (eq (intern variable) (car elem))
(setcar (nthcdr 3 elem) value)))))
-
+
(defun assistant-render-text (text node)
+ (unless (and text node)
+ (gnus-error
+ 5
+ "The assistant was asked to render invalid text or node data"))
(dolist (elem text)
(if (stringp elem)
;; Ordinary text
(cadr type))
assistant-widgets))
(t
- (push
+ (push
(widget-create
'editable-field
- :value-face 'assistant-field-face
+ :value-face 'assistant-field
:assistant-variable variable
(assistant-get-variable node variable))
assistant-widgets)
- ;; The editable-field widget apparently inserts a newline;
- ;; remove it.
- (delete-char -1)
(add-text-properties start (point)
- (list
- 'bold t
- 'face 'assistant-field-face
- 'not-read-only t))))))))
+ (list
+ 'bold t
+ 'face 'assistant-field
+ 'not-read-only t)))))))
+ (widget-setup))
(defun assistant-render-node (node-name)
(let ((node (assistant-find-node node-name))
(inhibit-read-only t)
(previous assistant-current-node)
(buffer-read-only nil))
+ (unless node
+ (gnus-error 5 "The node for %s could not be found" node-name))
(set (make-local-variable 'assistant-widgets) nil)
(assistant-set-defaults node)
(if (equal (assistant-get node "type") "interstitial")
- (assistant-render-node (assistant-find-next-node node-name))
+ (assistant-render-node (nth 0 (assistant-find-next-nodes node-name)))
(setq assistant-current-node node-name)
(when previous
(push previous assistant-previous-nodes))
(assistant-set-defaults (assistant-find-node node) 'force)
(assistant-render-node node)))
"Reset")
- (insert " ")
- (assistant-node-button 'next (assistant-find-next-node))
(insert "\n")
+ (dolist (nnode (assistant-find-next-nodes))
+ (assistant-node-button 'next nnode)
+ (insert "\n"))
+
(goto-char (point-min))
(assistant-make-read-only))))
(setq variable (cadr variable))
(let ((type (nth 1 variable))
(value (nth 3 variable)))
- (when
+ (when
(cond
((eq type :number)
(string-match "[^0-9]" value))
(error "%s" result))))
(assistant-set node "save" t)))
-(defun assistant-find-next-node (&optional node)
+;; (defun assistant-find-next-node (&optional node)
+;; (let* ((node (assistant-find-node (or node assistant-current-node)))
+;; (node-name (assistant-node-name node))
+;; (nexts (assistant-get-list node "next"))
+;; next elem applicable)
+
+;; (while (setq elem (pop nexts))
+;; (when (assistant-eval (car (cadr elem)))
+;; (setq applicable (cons elem applicable))))
+
+;; ;; return the first thing we can
+;; (cadr (cadr (pop applicable)))))
+
+(defun assistant-find-next-nodes (&optional node)
(let* ((node (assistant-find-node (or node assistant-current-node)))
(nexts (assistant-get-list node "next"))
- next elem)
- (while (and (setq elem (cadr (pop nexts)))
- (not next))
- (when (setq next (assistant-eval (car elem)))
- (setq next (or (cadr elem) next))))
- next))
+ next elem applicable return)
+
+ (while (setq elem (pop nexts))
+ (when (assistant-eval (car (cadr elem)))
+ (setq applicable (cons elem applicable))))
+
+ ;; return the first thing we can
+
+ (while (setq elem (pop applicable))
+ (push (cadr (cadr elem)) return))
+
+ return))
(defun assistant-get-all-variables ()
(let ((variables nil))
(append (assistant-get-list node "variable")
variables)))
variables))
-
+
(defun assistant-eval (form)
(let ((bindings nil))
(dolist (variable (assistant-get-all-variables))
(setq variable (cadr variable))
- (push (list (car variable)
+ (push (list (car variable)
(if (eq (nth 3 variable) 'default)
nil
(if (listp (nth 3 variable))
(provide 'assistant)
-;;; arch-tag: 0404bfa2-9226-4611-8d3f-335c2416175b
;;; assistant.el ends here
projects / gnus / blobdiff