+;;;
+;;; gnus-interactive
+;;;
+
+(defvar gnus-current-prefix-symbol nil
+ "Current prefix symbol.")
+
+(defvar gnus-current-prefix-symbols nil
+ "List of current prefix symbols.")
+
+(defun gnus-interactive (string &optional params)
+ "Return a list that can be fed to `interactive'.
+See `interactive' for full documentation.
+
+Adds the following specs:
+
+y -- The current symbolic prefix.
+Y -- A list of the current symbolic prefix(es).
+A -- Article number.
+H -- Article header.
+g -- Group name."
+ (let ((i 0)
+ out c prompt)
+ (while (< i (length string))
+ (string-match ".\\([^\n]*\\)\n?" string i)
+ (setq c (aref string i))
+ (when (match-end 1)
+ (setq prompt (match-string 1 string)))
+ (setq i (match-end 0))
+ ;; We basically emulate just about everything that
+ ;; `interactive' does, but adds the "g" and "G" specs.
+ (push
+ (cond
+ ((= c ?a)
+ (completing-read prompt obarray 'fboundp t))
+ ((= c ?b)
+ (read-buffer prompt (current-buffer) t))
+ ((= c ?B)
+ (read-buffer prompt (other-buffer (current-buffer))))
+ ((= c ?c)
+ (read-char))
+ ((= c ?C)
+ (completing-read prompt obarray 'commandp t))
+ ((= c ?d)
+ (point))
+ ((= c ?D)
+ (read-file-name prompt nil default-directory 'lambda))
+ ((= c ?f)
+ (read-file-name prompt nil nil 'lambda))
+ ((= c ?F)
+ (read-file-name prompt))
+ ((= c ?k)
+ (read-key-sequence prompt))
+ ((= c ?K)
+ (error "Not implemented spec"))
+ ((= c ?e)
+ (error "Not implemented spec"))
+ ((= c ?m)
+ (mark))
+ ((= c ?N)
+ (error "Not implemented spec"))
+ ((= c ?n)
+ (string-to-number (read-from-minibuffer prompt)))
+ ((= c ?p)
+ (prefix-numeric-value current-prefix-arg))
+ ((= c ?P)
+ current-prefix-arg)
+ ((= c ?r)
+ 'gnus-prefix-nil)
+ ((= c ?s)
+ (read-string prompt))
+ ((= c ?S)
+ (intern (read-string prompt)))
+ ((= c ?v)
+ (read-variable prompt))
+ ((= c ?x)
+ (read-minibuffer prompt))
+ ((= c ?x)
+ (eval-minibuffer prompt))
+ ;; And here the new specs come.
+ ((= c ?y)
+ gnus-current-prefix-symbol)
+ ((= c ?Y)
+ gnus-current-prefix-symbols)
+ ((= c ?g)
+ (gnus-group-group-name))
+ ((= c ?A)
+ (gnus-summary-article-number))
+ ((= c ?H)
+ (gnus-summary-article-header))
+ (t
+ (error "Not implemented spec")))
+ out)
+ (cond
+ ((= c ?r)
+ (push (if (< (point) (mark) (point) (mark))) out)
+ (push (if (> (point) (mark) (point) (mark))) out))))
+ (setq out (delq 'gnus-prefix-nil out))
+ (nreverse out)))
+
+(defun gnus-symbolic-argument (&optional arg)
+ "Read a symbolic argument and a command, and then execute command."
+ (interactive "P")
+ (let* ((in-command (this-command-keys))
+ (command in-command)
+ gnus-current-prefix-symbols
+ gnus-current-prefix-symbol
+ syms)
+ (while (equal in-command command)
+ (message "%s-" (key-description (this-command-keys)))
+ (push (intern (char-to-string (read-char))) syms)
+ (setq command (read-key-sequence nil t)))
+ (setq gnus-current-prefix-symbols (nreverse syms)
+ gnus-current-prefix-symbol (car gnus-current-prefix-symbols))
+ (call-interactively (key-binding command t))))
+
projects / gnus / blobdiff