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;;; Minibuffer read functions for VM
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;;; Copyright (C) 1993, 1994 Kyle E. Jones
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;;; This program is free software; you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 1, or (at your option)
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;;; This program is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;; You should have received a copy of the GNU General Public License
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;;; along with this program; if not, write to the Free Software
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;;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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(defun vm-minibuffer-complete-word (&optional exiting)
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(let ((opoint (point))
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;; In Emacs 21, during a minibuffer read the minibuffer
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;; contains the prompt as buffer text and that text is
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;; read only. So we can no longer assume that (point-min)
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;; is where the user-entered text starts and we must avoid
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;; modifying that prompt text. The value we want instead
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;; of (point-min) is (minibuffer-prompt-end).
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(point-min (if (fboundp 'minibuffer-prompt-end)
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(minibuffer-prompt-end)
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(case-fold-search completion-ignore-case)
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trimmed-c-list c-list beg end diff word word-prefix-regexp completion)
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;; find the beginning and end of the word we're trying to complete
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(if (or (eobp) (memq (following-char) '(?\t ?\n ?\ )))
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(skip-chars-backward " \t\n")
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(and (not (eobp)) (forward-char))
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(skip-chars-forward "^ \t\n")
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;; if there can't be multiple words in the input the beginning
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;; of the word must be at point-min.
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(if (not vm-completion-auto-space)
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(skip-chars-backward "^ \t\n")
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;; copy the word into a string
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(setq word (buffer-substring beg end))
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;; trim the completion list down to just likely candidates
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;; then convert it to an alist.
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(setq word-prefix-regexp (concat "^" (regexp-quote word))
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trimmed-c-list (vm-delete-non-matching-strings
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vm-minibuffer-completion-table)
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trimmed-c-list (sort trimmed-c-list (function string-lessp))
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trimmed-c-list (mapcar 'list trimmed-c-list)
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c-list (mapcar 'list vm-minibuffer-completion-table))
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;; Try the word against the completion list.
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(setq completion (try-completion word trimmed-c-list)))
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;; If completion is nil, figure out what prefix of the word would prefix
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;; something in the completion list... but only if the user is interested.
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(if (and (null completion) vm-completion-auto-correct c-list)
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(while (null (setq completion
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(try-completion (substring word 0 i) c-list)))
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(setq completion (substring word 0 i))))
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;; If completion is t, we had a perfect match already.
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(cond (vm-completion-auto-space
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(vm-minibuffer-completion-message "[Sole completion]"))))
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;; Compute the difference in length between the completion and the
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;; word. A negative difference means no match and the magnitude
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;; indicates the number of chars that need to be shaved off the end
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;; before a match will occur. A positive difference means a match
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;; occurred and the magnitude specifies the number of new chars that
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;; can be appended to the word as a completion.
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;; `completion' can be nil here, but the code works anyway because
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;; (length nil) still equals 0!
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(setq diff (- (length completion) (length word)))
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;; We have some completion chars. Insert them.
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(and (zerop diff) (not (string-equal completion word))))
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(delete-char (- (length word)))
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(if (and vm-completion-auto-space
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(null (cdr trimmed-c-list)))
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;; The word prefixed more than one string, but we can't complete
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;; any further. Either give help or say "Ambiguous".
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(cond ((> (length (car (car trimmed-c-list))) (length word))
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(if (null completion-auto-help)
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(vm-minibuffer-completion-message "[Ambiguous]")
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(vm-minibuffer-show-completions (sort
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((not (eq last-command 'vm-minibuffer-complete-word))
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(vm-minibuffer-completion-message
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"[Complete, but not unique]"))
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(vm-completion-auto-space
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;; The word didn't prefix anything... if vm-completion-auto-correct is
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;; non-nil strip the offending characters and try again.
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(vm-completion-auto-correct
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(vm-minibuffer-complete-word exiting))
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;; if we're not auto-correcting and we're doing
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;; multi-word, just let the user insert a space.
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(vm-completion-auto-space
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;; completion utterly failed, tell the user so.
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(vm-minibuffer-completion-message "[No match]")))))))
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(defun vm-minibuffer-complete-word-and-exit ()
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(vm-minibuffer-complete-word t)
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(defun vm-minibuffer-completion-message (string &optional seconds)
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"Briefly display STRING to the right of the current minibuffer input.
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Optional second arg SECONDS specifies how long to keep the message visible;
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the default is 2 seconds.
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A keypress causes the immediate erasure of the STRING, and return of control
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to the calling program."
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(let (omax (inhibit-quit t))
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(goto-char (point-max))
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(sit-for (or seconds 2))
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(delete-region omax (point-max))))
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(defun vm-minibuffer-replace-word (word)
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(goto-char (point-max))
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(skip-chars-backward "^ \t\n")
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(delete-region (point) (point-max))
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(defun vm-minibuffer-show-completions (list)
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"Display LIST in a multi-column listing in the \" *Completions*\" buffer.
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LIST should be a list of strings."
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(set-buffer (get-buffer-create " *Completions*"))
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(setq buffer-read-only nil)
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(use-local-map (make-sparse-keymap))
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;; ignore vm-mutable-* here. the user shouldn't mind
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;; because when they exit the minibuffer the windows will be
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(display-buffer (current-buffer))
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(insert "Possible completions are:\n")
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(setq buffer-read-only t)
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(vm-show-list list 'vm-minibuffer-replace-word
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(list (current-local-map) minibuffer-local-map))
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(goto-char (point-min))))
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(defun vm-show-list (list &optional function keymaps)
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"Display LIST in a multi-column listing in the current buffer at point.
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The current buffer must be displayed in some window at the time
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this function is called.
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LIST should be a list of strings.
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Optional second argument FUNCTION will be called if the mouse is
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clicked on one of the strings in the current buffer. The string
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clicked upon will be passed to FUNCTION as its sole argument.
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Optional third argument KEYMAPS specifies a lists of keymaps
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where the FUNCTION should be bound to the mouse clicks. By
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default the local keymap of the current buffer is used."
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(or keymaps (setq keymaps (and (current-local-map)
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(list (current-local-map)))))
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(let ((buffer-read-only nil)
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tabs longest columns list-length q i w start command
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(cond ((and function keymaps (vm-mouse-support-possible-p))
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(list 'lambda '(e) '(interactive "e")
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'((string (vm-mouse-get-mouse-track-string e)))
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(list 'and 'string (list function 'string)))))
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(setq keymap (car keymaps))
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(cond ((vm-mouse-xemacs-mouse-p)
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(define-key keymap 'button1 command)
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(define-key keymap 'button2 command))
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((vm-mouse-fsfemacs-mouse-p)
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(define-key keymap [down-mouse-1] 'ignore)
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(define-key keymap [drag-mouse-1] 'ignore)
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(define-key keymap [mouse-1] command)
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(define-key keymap [drag-mouse-2] 'ignore)
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(define-key keymap [down-mouse-2] 'ignore)
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(define-key keymap [mouse-2] command)))
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(setq keymaps (cdr keymaps)))))
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(setq list (sort (copy-sequence list) (function string-lessp))
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w (vm-get-buffer-window (current-buffer))
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columns (1- (window-width w)))
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(setq longest (max longest (length (car q)))
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list-length (1+ list-length)
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(setq tabs (/ list-length (/ columns (+ longest separation)))
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(if (zerop (% list-length
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(/ columns (+ longest separation))))
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(setq q (nthcdr i list))
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(and function (vm-mouse-set-mouse-track-highlight start (point)))
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(insert-char ? (+ separation (- longest (length (car q)))))
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(setq q (nthcdr tabs q)))
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(defun vm-minibuffer-completion-help ()
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(let ((opoint (point))
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c-list beg end word word-prefix-regexp)
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;; find the beginning and end of the word we're trying to complete
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(if (or (eobp) (memq (following-char) '(?\t ?\n ?\ )))
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(skip-chars-backward " \t\n")
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(and (not (eobp)) (forward-char))
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(skip-chars-forward "^ \t\n")
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(skip-chars-backward "^ \t\n")
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;; copy the word into a string
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(setq word (buffer-substring beg end))
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;; trim the completion list down to just likely candidates
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;; then convert it to an alist.
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(setq word-prefix-regexp (concat "^" (regexp-quote word))
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c-list (vm-delete-non-matching-strings
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vm-minibuffer-completion-table)
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c-list (sort c-list (function string-lessp)))
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(vm-minibuffer-show-completions c-list)
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(vm-minibuffer-completion-message " [No match]"))))
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(defun vm-keyboard-read-string (prompt completion-list &optional multi-word)
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(let ((minibuffer-local-map (copy-keymap minibuffer-local-map))
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(vm-completion-auto-space multi-word)
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(vm-minibuffer-completion-table completion-list))
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(define-key minibuffer-local-map "\t" 'vm-minibuffer-complete-word)
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(define-key minibuffer-local-map " " 'vm-minibuffer-complete-word)
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(define-key minibuffer-local-map "?" 'vm-minibuffer-completion-help)
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(define-key minibuffer-local-map "\r"
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'vm-minibuffer-complete-word-and-exit))
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;; evade the XEmacs dialog box, yeccch.
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(let ((use-dialog-box nil))
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(read-string prompt))))
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(defvar last-nonmenu-event)
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(defun vm-read-string (prompt completion-list &optional multi-word)
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(if (consp (car completion-list))
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(setq completion-list (nreverse (mapcar 'car completion-list))))
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(if (and completion-list (vm-mouse-support-possible-here-p))
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(cond ((and (vm-mouse-xemacs-mouse-p)
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(or (button-press-event-p last-command-event)
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(button-release-event-p last-command-event)
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(menu-event-p last-command-event)))
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(vm-mouse-read-string prompt completion-list multi-word))
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((and (vm-mouse-fsfemacs-mouse-p)
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(listp last-nonmenu-event))
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(vm-mouse-read-string prompt completion-list multi-word))
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(vm-keyboard-read-string prompt completion-list multi-word)))
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(vm-keyboard-read-string prompt completion-list multi-word)))
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(defun vm-read-number (prompt)
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(string-match "^[ \t]*-?[0-9]+" (setq result (read-string prompt)))))
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(string-to-int result)))
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(defun vm-read-password (prompt &optional confirm)
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"Read and return a password from the minibuffer, prompting with PROMPT.
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Optional second argument CONFIRM non-nil means that the user will be asked
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to type the password a second time for confirmation and if there is a
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mismatch, the process is repeated.
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Line editing keys are:
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C-q, C-v literal next"
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(let ((cursor-in-echo-area t)
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(xxx "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")
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(setq input-buffer (get-buffer-create " *password*"))
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(set-buffer input-buffer)
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(message "%s%s" prompt
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(vm-truncate-roman-string xxx (buffer-size)))
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(while (not (memq (setq char (read-char)) '(?\C-m ?\C-j)))
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'((?\C-h . (delete-char -1))
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(?\C-? . (delete-char -1))
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(?\C-u . (delete-region 1 (point)))
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(?\C-x . (delete-region 1 (point)))
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(?\C-q . (quoted-insert 1))
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(?\C-v . (quoted-insert 1))))))
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(condition-case error-data
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(message "%s%s" prompt
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(vm-truncate-roman-string xxx (buffer-size))))
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(cond ((and confirm string)
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(cond ((not (string= string (buffer-string)))
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(vm-truncate-roman-string
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" [Mismatch... try again.]"))
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(t (throw 'return-value string))))
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(setq string (buffer-string))
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(vm-truncate-roman-string xxx (buffer-size))
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" [Retype to confirm...]"))
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(throw 'return-value (buffer-string))))))
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(and input-buffer (kill-buffer input-buffer)))))))
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(defun vm-keyboard-read-file-name (prompt &optional dir default
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must-match initial history)
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"Like read-file-name, except HISTORY's value is unaltered."
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(let ((oldvalue (symbol-value history))
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;; evade the XEmacs dialog box, yeccch.
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(use-dialog-box nil))
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(read-file-name prompt dir default must-match initial history)
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(wrong-number-of-arguments
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(let ((file-name-history (symbol-value history))
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(read-file-name prompt dir default must-match initial))
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(read-file-name prompt dir default must-match initial))))
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(and history (set history oldvalue)))))
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(defun vm-read-file-name (prompt &optional dir default
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must-match initial history)
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"Like read-file-name, except a mouse interface is used if a mouse
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click mouse triggered the current command."
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(if (vm-mouse-support-possible-here-p)
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(cond ((and (vm-mouse-xemacs-mouse-p)
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(or (button-press-event-p last-command-event)
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(button-release-event-p last-command-event)
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(menu-event-p last-command-event)))
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(vm-mouse-read-file-name prompt dir default
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must-match initial history))
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((and (vm-mouse-fsfemacs-mouse-p)
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(listp last-nonmenu-event))
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(vm-mouse-read-file-name prompt dir default
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must-match initial history))
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(vm-keyboard-read-file-name prompt dir default
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must-match initial history)))
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(vm-keyboard-read-file-name prompt dir default
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must-match initial history)))
added
removed
vm-minibuf.el
