X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/e47525c4429eb22d838bae8e67b2699bee40763e..b36a53f4be733b326739fdebb2285d106eecbd06:/lisp/iswitchb.el diff --git a/lisp/iswitchb.el b/lisp/iswitchb.el index 361d7ad673..233997285c 100644 --- a/lisp/iswitchb.el +++ b/lisp/iswitchb.el @@ -1,17 +1,17 @@ ;;; iswitchb.el --- switch between buffers using substrings -;; Copyright (C) 1996, 1997, 2000, 2001 Free Software Foundation, Inc. +;; Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, +;; 2005, 2006, 2007 Free Software Foundation, Inc. ;; Author: Stephen Eglen ;; Maintainer: Stephen Eglen ;; Keywords: completion convenience -;; location: http://www.anc.ed.ac.uk/~stephen/emacs/ ;; This file is part of GNU Emacs. ;; 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, @@ -21,14 +21,16 @@ ;; 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. +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. ;;; Commentary: ;; Installation: ;; To get the functions in this package bound to keys, use ;; M-x iswitchb-mode or customize the option `iswitchb-mode'. +;; Alternatively, add the following line to your .emacs: +;; (iswitchb-mode 1) ;; As you type in a substring, the list of buffers currently matching ;; the substring is displayed as you type. The list is ordered so @@ -61,11 +63,11 @@ ;; The list in {} are the matching buffers, most recent first (buffers ;; visible in the current frame are put at the end of the list by ;; default). At any time I can select the item at the head of the -;; list by pressing RET. I can also bring the put the first element -;; at the end of the list by pressing C-s, or put the last element at -;; the head of the list by pressing C-r. The item in [] indicates -;; what can be added to my input by pressing TAB. In this case, I -;; will get "3" added to my input. So, press TAB: +;; list by pressing RET. I can also put the first element at the end +;; of the list by pressing C-s, or put the last element at the head of +;; the list by pressing C-r. The item in [] indicates what can be +;; added to my input by pressing TAB. In this case, I will get "3" +;; added to my input. So, press TAB: ;; iswitch 23{123456,123} ;; ;; At this point, I still have two matching buffers. @@ -157,17 +159,16 @@ ;; then all buffers matching "Summary" are moved to the end of the ;; list. (I find this handy for keeping the INBOX Summary and so on ;; out of the way.) It also moves buffers matching "output\*$" to the -;; end of the list (these are created by AUC TeX when compiling.) +;; end of the list (these are created by AUCTeX when compiling.) ;; Other functions could be made available which alter the list of ;; matching buffers (either deleting or rearranging elements.) ;; Font-Lock -;; If you have font-lock loaded, the first matching buffer is -;; highlighted. To switch this off, set (setq iswitchb-use-fonts nil) -;; I don't use font-lock that much, so I've hardcoded the faces. If -;; this is too harsh, let me know. Colouring of the matching buffer -;; name was suggested by Carsten Dominik (dominik@strw.leidenuniv.nl) +;; font-lock is used to highlight the first matching buffer. To +;; switch this off, set (setq iswitchb-use-faces nil). Colouring of +;; the matching buffer name was suggested by Carsten Dominik +;; (dominik@strw.leidenuniv.nl) ;; Replacement for read-buffer @@ -228,16 +229,10 @@ ;; Regexp matching -;; There is limited provision for regexp matching within iswitchb, -;; enabled through `iswitchb-regexp'. This allows you to type `c$' -;; for example and see all buffer names ending in `c'. This facility -;; is quite limited though in two respects. First, you can't -;; currently type in expressions like `[0-9]' directly -- you have to -;; type them in when iswitchb-regexp is nil and then toggle on the -;; regexp functionality. Likewise, don't enter an expression -;; containing `\' in regexp mode. If you try, iswitchb gets confused, -;; so just hit C-g and try again. Secondly, no completion mechanism -;; is currently offered when regexp searching. +;; There is provision for regexp matching within iswitchb, enabled +;; through `iswitchb-regexp'. This allows you to type `c$' for +;; example and see all buffer names ending in `c'. No completion +;; mechanism is currently offered when regexp searching. ;;; TODO @@ -254,6 +249,8 @@ (fboundp 'last))) (require 'cl)) +(require 'font-lock) + ;; Set up the custom library. ;; taken from http://www.dina.kvl.dk/~abraham/custom/ (eval-and-compile @@ -295,6 +292,30 @@ with a space, for which the regexp is `^ '. See the source file for example functions that filter buffernames." :type '(repeat (choice regexp function)) :group 'iswitchb) +(put 'iswitchb-buffer-ignore 'risky-local-variable t) + +(defcustom iswitchb-max-to-show nil + "*If non-nil, limit the number of names shown in the minibuffer. +If this value is N, and N is greater than the number of matching +buffers, the first N/2 and the last N/2 matching buffers are +shown. This can greatly speed up iswitchb if you have a +multitude of buffers open." + :type '(choice (const :tag "Show all" nil) integer) + :group 'iswitchb) + +(defcustom iswitchb-use-virtual-buffers nil + "*If non-nil, refer to past buffers when none match. +This feature relies upon the `recentf' package, which will be +enabled if this variable is configured to a non-nil value." + :type 'boolean + :require 'recentf + :set (function + (lambda (sym value) + (if value (recentf-mode 1)) + (set sym value))) + :group 'iswitchb) + +(defvar iswitchb-virtual-buffers nil) (defcustom iswitchb-cannot-complete-hook 'iswitchb-completion-help "*Hook run when `iswitchb-complete' can't complete any more. @@ -352,10 +373,11 @@ See also `iswitchb-newbuffer'." :type 'boolean :group 'iswitchb) -(defcustom iswitchb-use-fonts t +(defcustom iswitchb-use-faces t "*Non-nil means use font-lock fonts for showing first match." :type 'boolean :group 'iswitchb) +(define-obsolete-variable-alias 'iswitchb-use-fonts 'iswitchb-use-faces "22.1") (defcustom iswitchb-use-frame-buffer-list nil "*Non-nil means use the currently selected frame's buffer list." @@ -374,20 +396,42 @@ See documentation of `walk-windows' for useful values.") (defcustom iswitchb-minibuffer-setup-hook nil "Iswitchb-specific customization of minibuffer setup. -This hook is run during minibuffer setup iff `iswitchb' will be active. -It is intended for use in customizing iswitchb for interoperation -with other packages." -;;; For instance: +This hook is run during minibuffer setup if `iswitchb' is active. +For instance: +\(add-hook 'iswitchb-minibuffer-setup-hook + '\(lambda () (set (make-local-variable 'max-mini-window-height) 3))) +will constrain the minibuffer to a maximum height of 3 lines when +iswitchb is running." + :type 'hook + :group 'iswitchb) -;;; \(add-hook 'iswitchb-minibuffer-setup-hook -;;; \(function -;;; \(lambda () -;;; \(make-local-variable 'resize-minibuffer-window-max-height) -;;; \(setq resize-minibuffer-window-max-height 3)))) +(defface iswitchb-single-match + '((t + (:inherit font-lock-comment-face))) + "Iswitchb face for single matching buffer name." + :version "22.1" + :group 'iswitchb) -;;; will constrain rsz-mini to a maximum minibuffer height of 3 lines when -;;; iswitchb is running. Copied from `icomplete-minibuffer-setup-hook'." - :type 'hook +(defface iswitchb-current-match + '((t + (:inherit font-lock-function-name-face))) + "Iswitchb face for current matching buffer name." + :version "22.1" + :group 'iswitchb) + +(defface iswitchb-virtual-matches + '((t + (:inherit font-lock-builtin-face))) + "Iswitchb face for matching virtual buffer names. +See also `iswitchb-use-virtual-buffers'." + :version "22.1" + :group 'iswitchb) + +(defface iswitchb-invalid-regexp + '((t + (:inherit font-lock-warning-face))) + "Iswitchb face for indicating invalid regexp. " + :version "22.1" :group 'iswitchb) ;; Do we need the variable iswitchb-use-mycompletion? @@ -451,16 +495,15 @@ interfere with other minibuffer usage.") (defvar iswitchb-global-map (let ((map (make-sparse-keymap))) - (substitute-key-definition 'switch-to-buffer ; normally C-x b - 'iswitchb-buffer map global-map) - (substitute-key-definition 'switch-to-buffer-other-window ; C-x 4 b - 'iswitchb-buffer-other-window map global-map) - (substitute-key-definition 'switch-to-buffer-other-frame ; C-x 5 b - 'iswitchb-buffer-other-frame map global-map) - (substitute-key-definition 'display-buffer ; C-x 4 C-o - 'iswitchb-display-buffer map global-map) + (dolist (b '((switch-to-buffer . iswitchb-buffer) + (switch-to-buffer-other-window . iswitchb-buffer-other-window) + (switch-to-buffer-other-frame . iswitchb-buffer-other-frame) + (display-buffer . iswitchb-display-buffer))) + (if (fboundp 'command-remapping) + (define-key map (vector 'remap (car b)) (cdr b)) + (substitute-key-definition (car b) (cdr b) map global-map))) map) - "Global keymap for `iswtichb-mode'.") + "Global keymap for `iswitchb-mode'.") (defvar iswitchb-history nil "History of buffers selected using `iswitchb-buffer'.") @@ -473,9 +516,6 @@ selected.") (defvar iswitchb-buffer-ignore-orig nil "Stores original value of `iswitchb-buffer-ignore'.") -(defvar iswitchb-xemacs (string-match "XEmacs" (emacs-version)) - "Non-nil if we are running XEmacs. Otherwise, assume we are running Emacs.") - (defvar iswitchb-default nil "Default buffer for iswitchb.") @@ -492,6 +532,11 @@ selected.") (defvar iswitchb-minibuf-depth nil "Value we expect to be returned by `minibuffer-depth' in the minibuffer.") +(defvar iswitchb-common-match-inserted nil + "Non-nil if we have just inserted a common match in the minibuffer.") + +(defvar iswitchb-invalid-regexp) + ;;; FUNCTIONS ;;; ISWITCHB KEYMAP @@ -512,7 +557,7 @@ variable `iswitchb-mode'." (define-key map "\C-j" 'iswitchb-select-buffer-text) (define-key map "\C-t" 'iswitchb-toggle-regexp) (define-key map "\C-x\C-f" 'iswitchb-find-file) - ;;(define-key map "\C-a" 'iswitchb-toggle-ignore) + (define-key map "\C-n" 'iswitchb-toggle-ignore) (define-key map "\C-c" 'iswitchb-toggle-case) (define-key map "\C-k" 'iswitchb-kill-buffer) (define-key map "\C-m" 'iswitchb-exit-minibuffer) @@ -549,6 +594,7 @@ in a separate window. ;;`iswitchb-buffer-ignore') (let* ((prompt "iswitch ") + iswitchb-invalid-regexp (buf (iswitchb-read-buffer prompt))) ;;(message "chosen text %s" iswitchb-final-text) @@ -557,7 +603,8 @@ in a separate window. (cond ( (eq iswitchb-exit 'findfile) (call-interactively 'find-file)) - + (iswitchb-invalid-regexp + (message "Won't make invalid regexp named buffer")) (t ;; View the buffer ;;(message "go to buf %s" buf) @@ -570,67 +617,79 @@ in a separate window. (iswitchb-possible-new-buffer buf))) )))) -;;;###autoload -(defun iswitchb-read-buffer (prompt &optional default require-match) +(defun iswitchb-read-buffer (prompt &optional default require-match + start matches-set) "Replacement for the built-in `read-buffer'. Return the name of a buffer selected. -PROMPT is the prompt to give to the user. DEFAULT if given is the default -buffer to be selected, which will go to the front of the list. -If REQUIRE-MATCH is non-nil, an existing-buffer must be selected." +PROMPT is the prompt to give to the user. +DEFAULT if given is the default buffer to be selected, which will +go to the front of the list. +If REQUIRE-MATCH is non-nil, an existing-buffer must be selected. +If START is a string, the selection process is started with that +string. +If MATCHES-SET is non-nil, the buflist is not updated before +the selection process begins. Used by isearchb.el." (let ( buf-sel iswitchb-final-text (icomplete-mode nil) ;; prevent icomplete starting up - ;; can only use fonts if they have been bound. - (iswitchb-use-fonts (and iswitchb-use-fonts - (boundp 'font-lock-comment-face) - (boundp 'font-lock-function-name-face)))) + ) (iswitchb-define-mode-map) (setq iswitchb-exit nil) - (setq iswitchb-rescan t) - (setq iswitchb-text "") (setq iswitchb-default (if (bufferp default) (buffer-name default) default)) - (iswitchb-make-buflist iswitchb-default) - (iswitchb-set-matches) + (setq iswitchb-text (or start "")) + (unless matches-set + (setq iswitchb-rescan t) + (iswitchb-make-buflist iswitchb-default) + (iswitchb-set-matches)) (let ((minibuffer-local-completion-map iswitchb-mode-map) - (iswitchb-prepost-hooks t) ;; Record the minibuffer depth that we expect to find once ;; the minibuffer is set up and iswitchb-entryfn-p is called. (iswitchb-minibuf-depth (1+ (minibuffer-depth))) (iswitchb-require-match require-match)) ;; prompt the user for the buffer name (setq iswitchb-final-text (completing-read - prompt ;the prompt + prompt ;the prompt '(("dummy" . 1)) ;table - nil ;predicate - nil ;require-match [handled elsewhere] - nil ;initial-contents + nil ;predicate + nil ;require-match [handled elsewhere] + start ;initial-contents 'iswitchb-history))) - (if (get-buffer iswitchb-final-text) + (if (and (not (eq iswitchb-exit 'usefirst)) + (get-buffer iswitchb-final-text)) ;; This happens for example if the buffer was chosen with the mouse. - (setq iswitchb-matches (list iswitchb-final-text))) + (setq iswitchb-matches (list iswitchb-final-text) + iswitchb-virtual-buffers nil)) + + ;; If no buffer matched, but a virtual buffer was selected, visit + ;; that file now and act as though that buffer had been selected. + (if (and iswitchb-virtual-buffers + (not (iswitchb-existing-buffer-p))) + (let ((virt (car iswitchb-virtual-buffers))) + (find-file-noselect (cdr virt)) + (setq iswitchb-matches (list (car virt)) + iswitchb-virtual-buffers nil))) ;; Handling the require-match must be done in a better way. - (if (and require-match (not (iswitchb-existing-buffer-p))) + (if (and require-match + (not (iswitchb-existing-buffer-p))) (error "Must specify valid buffer")) - (if (or - (eq iswitchb-exit 'takeprompt) - (null iswitchb-matches)) + (if (or (eq iswitchb-exit 'takeprompt) + (null iswitchb-matches)) (setq buf-sel iswitchb-final-text) ;; else take head of list (setq buf-sel (car iswitchb-matches))) ;; Or possibly choose the default buffer (if (equal iswitchb-final-text "") - (setq buf-sel - (car iswitchb-matches))) + (setq buf-sel (car iswitchb-matches))) buf-sel)) @@ -661,7 +720,9 @@ The result is stored in `iswitchb-common-match-string'." (let (res) (cond ((not iswitchb-matches) (run-hooks 'iswitchb-cannot-complete-hook)) - + (iswitchb-invalid-regexp + ;; Do nothing + ) ((= 1 (length iswitchb-matches)) ;; only one choice, so select it. (exit-minibuffer)) @@ -673,7 +734,8 @@ The result is stored in `iswitchb-common-match-string'." (not (equal res iswitchb-text))) ;; found something to complete, so put it in the minibuffer. (progn - (setq iswitchb-rescan nil) + (setq iswitchb-rescan nil + iswitchb-common-match-inserted t) (delete-region (minibuffer-prompt-end) (point)) (insert res)) ;; else nothing to complete @@ -714,7 +776,9 @@ The result is stored in `iswitchb-common-match-string'." (interactive) (if (or (not iswitchb-require-match) (iswitchb-existing-buffer-p)) - (throw 'exit nil))) + (progn + (setq iswitchb-exit 'usefirst) + (throw 'exit nil)))) (defun iswitchb-select-buffer-text () "Select the buffer named by the prompt. @@ -729,18 +793,29 @@ If no buffer exactly matching the prompt exists, maybe create a new one." (setq iswitchb-exit 'findfile) (exit-minibuffer)) +(eval-when-compile + (defvar recentf-list)) + (defun iswitchb-next-match () "Put first element of `iswitchb-matches' at the end of the list." (interactive) (let ((next (cadr iswitchb-matches))) - (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist next)) + (if (and (null next) iswitchb-virtual-buffers) + (setq recentf-list + (iswitchb-chop recentf-list + (cdr (cadr iswitchb-virtual-buffers)))) + (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist next))) (setq iswitchb-rescan t))) (defun iswitchb-prev-match () "Put last element of `iswitchb-matches' at the front of the list." (interactive) (let ((prev (car (last iswitchb-matches)))) - (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist prev)) + (if (and (null prev) iswitchb-virtual-buffers) + (setq recentf-list + (iswitchb-chop recentf-list + (cdr (car (last iswitchb-virtual-buffers))))) + (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist prev))) (setq iswitchb-rescan t))) (defun iswitchb-chop (list elem) @@ -796,10 +871,8 @@ it is put to the start of the list." (defun iswitchb-to-end (lst) "Move the elements from LST to the end of `iswitchb-temp-buflist'." - (mapcar - (lambda (elem) - (setq iswitchb-temp-buflist (delq elem iswitchb-temp-buflist))) - lst) + (dolist (elem lst) + (setq iswitchb-temp-buflist (delq elem iswitchb-temp-buflist))) (setq iswitchb-temp-buflist (nconc iswitchb-temp-buflist lst))) (defun iswitchb-get-buffers-in-frames (&optional current) @@ -832,36 +905,27 @@ current frame, rather than all frames, regardless of value of (setq iswitchb-matches (let* ((buflist iswitchb-buflist)) (iswitchb-get-matched-buffers iswitchb-text iswitchb-regexp - buflist))))) + buflist)) + iswitchb-virtual-buffers nil))) (defun iswitchb-get-matched-buffers (regexp &optional string-format buffer-list) "Return buffers matching REGEXP. If STRING-FORMAT is nil, consider REGEXP as just a string. BUFFER-LIST can be list of buffers or list of strings." - (let* ((case-fold-search (iswitchb-case)) - ;; need reverse since we are building up list backwards - (list (reverse buffer-list)) - (do-string (stringp (car list))) - name - ret) - (mapcar - (lambda (x) - - (if do-string - (setq name x) ;We already have the name - (setq name (buffer-name x))) - - (cond - ((and (or (and string-format (string-match regexp name)) - (and (null string-format) - (string-match (regexp-quote regexp) name))) - - (not (iswitchb-ignore-buffername-p name))) - (setq ret (cons name ret)) - ))) - list) - ret)) + (let* ((case-fold-search (iswitchb-case)) + name ret) + (if (null string-format) (setq regexp (regexp-quote regexp))) + (setq iswitchb-invalid-regexp nil) + (condition-case error + (dolist (x buffer-list (nreverse ret)) + (setq name (if (stringp x) x (buffer-name x))) + (when (and (string-match regexp name) + (not (iswitchb-ignore-buffername-p name))) + (push name ret))) + (invalid-regexp + (setq iswitchb-invalid-regexp t) + (cdr error))))) (defun iswitchb-ignore-buffername-p (bufname) "Return t if the buffer BUFNAME should be ignored." @@ -877,7 +941,7 @@ BUFFER-LIST can be list of buffers or list of strings." (progn (setq ignorep t) (setq re-list nil)))) - ((fboundp nextstr) + ((functionp nextstr) (if (funcall nextstr bufname) (progn (setq ignorep t) @@ -945,7 +1009,8 @@ Return the modified list with the last element prepended to it." (temp-buf "*Completions*") (win)) - (if (eq last-command this-command) + (if (and (eq last-command this-command) + (not iswitchb-common-match-inserted)) ;; scroll buffer (progn (set-buffer temp-buf) @@ -956,7 +1021,7 @@ Return the modified list with the last element prepended to it." (set-buffer buf)) (with-output-to-temp-buffer temp-buf - (if iswitchb-xemacs + (if (featurep 'xemacs) ;; XEmacs extents are put on by default, doesn't seem to be ;; any way of switching them off. @@ -972,8 +1037,8 @@ Return the modified list with the last element prepended to it." (fundamental-mode)) (display-completion-list (if iswitchb-matches iswitchb-matches - iswitchb-buflist)) - ))))) + iswitchb-buflist)))) + (setq iswitchb-common-match-inserted nil)))) ;;; KILL CURRENT BUFFER @@ -1012,7 +1077,7 @@ Return the modified list with the last element prepended to it." (or (eq iswitchb-method 'always-frame) (y-or-n-p "Jump to frame? "))) (setq newframe (window-frame win)) - (if (not iswitchb-xemacs) + (if (fboundp 'select-frame-set-input-focus) (select-frame-set-input-focus newframe) (raise-frame newframe) (select-frame newframe) @@ -1032,7 +1097,7 @@ Return the modified list with the last element prepended to it." ((eq iswitchb-method 'otherframe) (progn (switch-to-buffer-other-frame buffer) - (if (not iswitchb-xemacs) + (if (fboundp 'select-frame-set-input-focus) (select-frame-set-input-focus (selected-frame))) ))))) @@ -1056,7 +1121,7 @@ Return the modified list with the last element prepended to it." (set-buffer-major-mode newbufcreated)) (iswitchb-visit-buffer newbufcreated)) ;; else wont create new buffer - (message (format "no buffer matching `%s'" buf))))) + (message "no buffer matching `%s'" buf)))) (defun iswitchb-window-buffer-p (buffer) "Return window pointer if BUFFER is visible in another frame. @@ -1070,7 +1135,6 @@ If BUFFER is visible in the current frame, return nil." (get-buffer-window buffer 0) ; better than 'visible ))) -;;;###autoload (defun iswitchb-default-keybindings () "Set up default keybindings for `iswitchb-buffer'. Call this function to override the normal bindings. This function also @@ -1084,7 +1148,6 @@ Obsolescent. Use `iswitchb-mode'." (global-set-key "\C-x4\C-o" 'iswitchb-display-buffer) (global-set-key "\C-x5b" 'iswitchb-buffer-other-frame)) -;;;###autoload (defun iswitchb-buffer () "Switch to another buffer. @@ -1097,7 +1160,6 @@ For details of keybindings, do `\\[describe-function] iswitchb'." (setq iswitchb-method iswitchb-default-method) (iswitchb)) -;;;###autoload (defun iswitchb-buffer-other-window () "Switch to another buffer and show it in another window. The buffer name is selected interactively by typing a substring. @@ -1106,7 +1168,6 @@ For details of keybindings, do `\\[describe-function] iswitchb'." (setq iswitchb-method 'otherwindow) (iswitchb)) -;;;###autoload (defun iswitchb-display-buffer () "Display a buffer in another window but don't select it. The buffer name is selected interactively by typing a substring. @@ -1115,7 +1176,6 @@ For details of keybindings, do `\\[describe-function] iswitchb'." (setq iswitchb-method 'display) (iswitchb)) -;;;###autoload (defun iswitchb-buffer-other-frame () "Switch to another buffer and show it in another frame. The buffer name is selected interactively by typing a substring. @@ -1143,7 +1203,7 @@ This is a hack for XEmacs, and should really be handled by `iswitchb-exhibit'." (goto-char (point-min))))) ;; add this hook for XEmacs only. -(if iswitchb-xemacs +(if (featurep 'xemacs) (add-hook 'iswitchb-minibuffer-setup-hook 'iswitchb-init-XEmacs-trick)) @@ -1157,7 +1217,7 @@ This is a hack for XEmacs, and should really be handled by `iswitchb-exhibit'." (define-key iswitchb-mode-map '[backspace] 'backward-delete-char) (define-key iswitchb-mode-map '[(meta backspace)] 'backward-kill-word)) -(if iswitchb-xemacs +(if (featurep 'xemacs) (add-hook 'iswitchb-define-mode-map-hook 'iswitchb-xemacs-backspacekey)) @@ -1188,73 +1248,120 @@ Copied from `icomplete-exhibit' with two changes: ;; Insert the match-status information: (insert (iswitchb-completions - contents - minibuffer-completion-table - minibuffer-completion-predicate - (not minibuffer-completion-confirm))))))) - -(defun iswitchb-completions (name candidates predicate require-match) + contents)))))) + +(eval-when-compile + (defvar most-len) + (defvar most-is-exact)) + +(defun iswitchb-output-completion (com) + (if (= (length com) most-len) + ;; Most is one exact match, + ;; note that and leave out + ;; for later indication: + (ignore + (setq most-is-exact t)) + (substring com most-len))) + +(defun iswitchb-completions (name) "Return the string that is displayed after the user's text. Modified from `icomplete-completions'." (let ((comps iswitchb-matches) ; "-determined" - only one candidate - (open-bracket-determined (if require-match "(" "[")) - (close-bracket-determined (if require-match ")" "]")) + (open-bracket-determined "[") + (close-bracket-determined "]") ;"-prospects" - more than one candidate (open-bracket-prospects "{") (close-bracket-prospects "}") first) - (if (and iswitchb-use-fonts comps) + (if (and iswitchb-use-faces comps) (progn (setq first (car comps)) (setq first (format "%s" first)) (put-text-property 0 (length first) 'face (if (= (length comps) 1) - 'font-lock-comment-face - 'font-lock-function-name-face) + (if iswitchb-invalid-regexp + 'iswitchb-invalid-regexp + 'iswitchb-single-match) + 'iswitchb-current-match) first) (setq comps (cons first (cdr comps))))) + ;; If no buffers matched, and virtual buffers are being used, then + ;; consult the list of past visited files, to see if we can find + ;; the file which the user might thought was still open. + (when (and iswitchb-use-virtual-buffers (null comps) + recentf-list) + (setq iswitchb-virtual-buffers nil) + (let ((head recentf-list) name) + (while head + (if (and (setq name (file-name-nondirectory (car head))) + (string-match (if iswitchb-regexp + iswitchb-text + (regexp-quote iswitchb-text)) name) + (null (get-file-buffer (car head))) + (not (assoc name iswitchb-virtual-buffers)) + (not (iswitchb-ignore-buffername-p name)) + (file-exists-p (car head))) + (setq iswitchb-virtual-buffers + (cons (cons name (car head)) + iswitchb-virtual-buffers))) + (setq head (cdr head))) + (setq iswitchb-virtual-buffers (nreverse iswitchb-virtual-buffers) + comps (mapcar 'car iswitchb-virtual-buffers)) + (let ((comp comps)) + (while comp + (put-text-property 0 (length (car comp)) + 'face 'iswitchb-virtual-matches + (car comp)) + (setq comp (cdr comp)))))) + (cond ((null comps) (format " %sNo match%s" open-bracket-determined close-bracket-determined)) - ((null (cdr comps)) ;one match - (concat (if (and (> (length (car comps)) - (length name))) - (concat open-bracket-determined + (iswitchb-invalid-regexp + (concat " " (car comps))) + ((null (cdr comps)) ;one match + (concat + (if (if (not iswitchb-regexp) + (= (length name) + (length (car comps))) + (string-match name (car comps)) + (string-equal (match-string 0 (car comps)) + (car comps))) + "" + (concat open-bracket-determined ;; when there is one match, show the ;; matching buffer name in full (car comps) - close-bracket-determined) - "") - (if (not iswitchb-use-fonts) " [Matched]"))) + close-bracket-determined)) + (if (not iswitchb-use-faces) " [Matched]"))) (t ;multiple matches + (if (and iswitchb-max-to-show + (> (length comps) iswitchb-max-to-show)) + (setq comps + (append + (let ((res nil) + (comp comps) + (end (/ iswitchb-max-to-show 2))) + (while (>= (setq end (1- end)) 0) + (setq res (cons (car comp) res) + comp (cdr comp))) + (nreverse res)) + (list "...") + (nthcdr (- (length comps) + (/ iswitchb-max-to-show 2)) comps)))) (let* ( ;;(most (try-completion name candidates predicate)) (most nil) (most-len (length most)) most-is-exact - first (alternatives - (apply - (function concat) - (cdr (apply - (function nconc) - (mapcar '(lambda (com) - (if (= (length com) most-len) - ;; Most is one exact match, - ;; note that and leave out - ;; for later indication: - (progn - (setq most-is-exact t) - ()) - (list "," - (substring com - most-len)))) - comps)))))) + (mapconcat (if most 'iswitchb-output-completion + 'identity) comps ","))) (concat @@ -1333,17 +1440,17 @@ This is an example function which can be hooked on to (iswitchb-to-end summaries))) (defun iswitchb-case () - "Return non-nil iff we should ignore case when matching. + "Return non-nil if we should ignore case when matching. See the variable `iswitchb-case' for details." (if iswitchb-case - (if iswitchb-xemacs + (if (featurep 'xemacs) (isearch-no-upper-case-p iswitchb-text) (isearch-no-upper-case-p iswitchb-text t)))) ;;;###autoload (define-minor-mode iswitchb-mode "Toggle Iswitchb global minor mode. -With arg, turn Iswitchb mode on if and only iff ARG is positive. +With arg, turn Iswitchb mode on if ARG is positive, otherwise turn it off. This mode enables switching between buffers using substrings. See `iswitchb' for details." nil nil iswitchb-global-map :global t :group 'iswitchb @@ -1353,4 +1460,5 @@ This mode enables switching between buffers using substrings. See (provide 'iswitchb) +;; arch-tag: d74198ae-753f-44f2-b34f-0c515398d90a ;;; iswitchb.el ends here