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1 | ;;; echistory.el --- Electric Command History Mode |
2 | ||
3a801d0c ER |
3 | ;; Copyright (C) 1985 Free Software Foundation, Inc. |
4 | ||
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5 | ;; Author: K. Shane Hartman |
6 | ;; Maintainer: FSF | |
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7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
e5167999 | 12 | ;; the Free Software Foundation; either version 2, or (at your option) |
e9e56e09 RS |
13 | ;; any later version. |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
e9e56e09 | 24 | |
55535639 PJ |
25 | ;;; Commentary: |
26 | ||
e5167999 | 27 | ;;; Code: |
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28 | |
29 | (require 'electric) ; command loop | |
30 | (require 'chistory) ; history lister | |
31 | ||
f9f9507e | 32 | ;;;###autoload |
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33 | (defun Electric-command-history-redo-expression (&optional noconfirm) |
34 | "Edit current history line in minibuffer and execute result. | |
35 | With prefix arg NOCONFIRM, execute current line as-is without editing." | |
36 | (interactive "P") | |
37 | (let (todo) | |
38 | (save-excursion | |
39 | (set-buffer "*Command History*") | |
40 | (beginning-of-line) | |
41 | (setq todo (read (current-buffer))) | |
42 | (if (boundp 'electric-history-in-progress) | |
43 | (if todo (throw 'electric-history-quit (list noconfirm todo))))))) | |
44 | ||
45 | (defvar electric-history-map ()) | |
46 | (if electric-history-map | |
47 | () | |
fa462250 RS |
48 | (setq electric-history-map (make-sparse-keymap)) |
49 | (define-key electric-history-map [t] 'Electric-history-undefined) | |
50 | (define-key electric-history-map "\e" (make-sparse-keymap)) | |
51 | (define-key electric-history-map [?\e t] 'Electric-history-undefined) | |
e9e56e09 RS |
52 | (define-key electric-history-map "\C-u" 'universal-argument) |
53 | (define-key electric-history-map " " 'Electric-command-history-redo-expression) | |
54 | (define-key electric-history-map "!" 'Electric-command-history-redo-expression) | |
55 | (define-key electric-history-map "\e\C-x" 'eval-sexp) | |
56 | (define-key electric-history-map "\e\C-d" 'down-list) | |
57 | (define-key electric-history-map "\e\C-u" 'backward-up-list) | |
58 | (define-key electric-history-map "\e\C-b" 'backward-sexp) | |
59 | (define-key electric-history-map "\e\C-f" 'forward-sexp) | |
60 | (define-key electric-history-map "\e\C-a" 'beginning-of-defun) | |
61 | (define-key electric-history-map "\e\C-e" 'end-of-defun) | |
62 | (define-key electric-history-map "\e\C-n" 'forward-list) | |
63 | (define-key electric-history-map "\e\C-p" 'backward-list) | |
64 | (define-key electric-history-map "q" 'Electric-history-quit) | |
65 | (define-key electric-history-map "\C-c" nil) | |
66 | (define-key electric-history-map "\C-c\C-c" 'Electric-history-quit) | |
67 | (define-key electric-history-map "\C-]" 'Electric-history-quit) | |
68 | (define-key electric-history-map "\C-z" 'suspend-emacs) | |
e17d2fd1 | 69 | (define-key electric-history-map (char-to-string help-char) 'Helper-help) |
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70 | (define-key electric-history-map "?" 'Helper-describe-bindings) |
71 | (define-key electric-history-map "\e>" 'end-of-buffer) | |
72 | (define-key electric-history-map "\e<" 'beginning-of-buffer) | |
73 | (define-key electric-history-map "\n" 'next-line) | |
74 | (define-key electric-history-map "\r" 'next-line) | |
71296446 | 75 | (define-key electric-history-map "\177" 'previous-line) |
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76 | (define-key electric-history-map "\C-n" 'next-line) |
77 | (define-key electric-history-map "\C-p" 'previous-line) | |
78 | (define-key electric-history-map "\ev" 'scroll-down) | |
79 | (define-key electric-history-map "\C-v" 'scroll-up) | |
fa462250 RS |
80 | (define-key electric-history-map [home] 'beginning-of-buffer) |
81 | (define-key electric-history-map [down] 'next-line) | |
82 | (define-key electric-history-map [up] 'previous-line) | |
83 | (define-key electric-history-map [prior] 'scroll-down) | |
84 | (define-key electric-history-map [next] 'scroll-up) | |
e9e56e09 RS |
85 | (define-key electric-history-map "\C-l" 'recenter) |
86 | (define-key electric-history-map "\e\C-v" 'scroll-other-window)) | |
87 | ||
88 | (defvar electric-command-history-hook nil | |
89 | "If non-nil, its value is called by `electric-command-history'.") | |
90 | ||
91 | (defun electric-command-history () | |
92 | "\\<electric-history-map>Major mode for examining and redoing commands from `command-history'. | |
93 | This pops up a window with the Command History listing. | |
94 | The number of command listed is controlled by `list-command-history-max'. | |
95 | The command history is filtered by `list-command-history-filter' if non-nil. | |
96 | Combines typeout Command History list window with menu like selection | |
97 | of an expression from the history for re-evaluation in the *original* buffer. | |
98 | ||
99 | The history displayed is filtered by `list-command-history-filter' if non-nil. | |
100 | ||
101 | Like Emacs-Lisp mode except that characters do not insert themselves and | |
102 | Tab and Linefeed do not indent. Instead these commands are provided: | |
103 | \\{electric-history-map} | |
104 | ||
105 | Calls the value of `electric-command-history-hook' if that is non-nil. | |
106 | The Command History listing is recomputed each time this mode is invoked." | |
107 | (interactive) | |
108 | (let ((electric-history-in-progress t) | |
109 | (old-buffer (current-buffer)) | |
110 | (todo)) | |
111 | (unwind-protect | |
112 | (setq todo | |
113 | (catch 'electric-history-quit | |
114 | (save-window-excursion | |
115 | (save-window-excursion | |
116 | (list-command-history) | |
117 | (set-buffer "*Command History*") | |
e65f2cc0 RS |
118 | (Command-history-setup) |
119 | (setq major-mode 'electric-command-history) | |
120 | (setq mode-name "Electric History") | |
121 | (use-local-map electric-history-map)) | |
e9e56e09 RS |
122 | (Electric-pop-up-window "*Command History*") |
123 | (run-hooks 'electric-command-history-hook) | |
124 | (if (eobp) | |
125 | (progn (ding) | |
126 | (message "No command history.") | |
127 | (throw 'electric-history-quit nil)) | |
128 | (let ((Helper-return-blurb "return to History")) | |
129 | (Electric-command-loop 'electric-history-quit | |
130 | "->" t)))))) | |
131 | (set-buffer "*Command History*") | |
e65f2cc0 | 132 | (command-history-mode) |
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133 | (bury-buffer (current-buffer))) |
134 | (if (consp todo) | |
135 | (progn (set-buffer old-buffer) | |
136 | (if (car todo) | |
137 | (apply (car (car (cdr todo))) (cdr (car (cdr todo)))) | |
138 | (edit-and-eval-command "Redo: " (car (cdr todo)))))))) | |
139 | ||
140 | (defun Electric-history-undefined () | |
141 | (interactive) | |
142 | (ding) | |
90c50a02 | 143 | (message (substitute-command-keys "Type \\[Helper-help] for help, ? for commands, C-c C-c to quit, Space to execute")) |
e9e56e09 RS |
144 | (sit-for 4)) |
145 | ||
146 | (defun Electric-history-quit () | |
147 | "Quit Electric Command History, restoring previous window configuration." | |
148 | (interactive) | |
149 | (if (boundp 'electric-history-in-progress) | |
150 | (progn (message "") | |
151 | (throw 'electric-history-quit nil)))) | |
c0274f38 | 152 | |
896546cd RS |
153 | (provide 'echistory) |
154 | ||
6b61353c | 155 | ;;; arch-tag: 1e5018fe-190f-44a7-9109-a895dcac4c50 |
c0274f38 | 156 | ;;; echistory.el ends here |