|
0
|
1 ;;; chistory.el --- list command history
|
|
|
2
|
|
|
3 ;; Copyright (C) 1985 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 ;; Author: K. Shane Hartman
|
|
|
6 ;; Maintainer: FSF
|
|
|
7
|
|
|
8 ;; This file is part of XEmacs.
|
|
|
9
|
|
|
10 ;; XEmacs is free software; you can redistribute it and/or modify it
|
|
|
11 ;; under the terms of the GNU General Public License as published by
|
|
|
12 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
13 ;; any later version.
|
|
|
14
|
|
|
15 ;; XEmacs is distributed in the hope that it will be useful, but
|
|
|
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
18 ;; General Public License for more details.
|
|
|
19
|
|
|
20 ;; You should have received a copy of the GNU General Public License
|
|
16
|
21 ;; along with XEmacs; 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.
|
|
0
|
24
|
|
2
|
25 ;;; Synched up with: FSF 19.34.
|
|
0
|
26
|
|
|
27 ;;; Commentary:
|
|
|
28
|
|
|
29 ;; This really has nothing to do with list-command-history per se, but
|
|
|
30 ;; its a nice alternative to C-x ESC ESC (repeat-complex-command) and
|
|
|
31 ;; functions as a lister if given no pattern. It's not important
|
|
|
32 ;; enough to warrant a file of its own.
|
|
|
33
|
|
|
34 ;;; Code:
|
|
|
35
|
|
|
36 (defvar command-history-map nil)
|
|
|
37
|
|
|
38 (defvar command-history-hook nil
|
|
|
39 "If non-nil, its value is called on entry to `command-history-mode'.")
|
|
|
40
|
|
|
41 ;;;###autoload
|
|
|
42 (defun repeat-matching-complex-command (&optional pattern)
|
|
|
43 "Edit and re-evaluate complex command with name matching PATTERN.
|
|
2
|
44 Matching occurrences are displayed, most recent first, until you select
|
|
|
45 a form for evaluation. If PATTERN is empty (or nil), every form in the
|
|
|
46 command history is offered. The form is placed in the minibuffer for
|
|
|
47 editing and the result is evaluated."
|
|
0
|
48 (interactive "sRedo Command (regexp): ")
|
|
|
49 (if pattern
|
|
|
50 (if (string-match "[^ \t]" pattern)
|
|
|
51 (setq pattern (substring pattern (match-beginning 0)))
|
|
|
52 (setq pattern nil)))
|
|
|
53 (let ((history command-history)
|
|
|
54 (temp)
|
|
|
55 (what))
|
|
|
56 (while (and history (not what))
|
|
|
57 (setq temp (car history))
|
|
|
58 (if (and (or (not pattern) (string-match pattern (symbol-name (car temp))))
|
|
|
59 (y-or-n-p (format "Redo %S? " temp)))
|
|
|
60 (setq what (car history))
|
|
|
61 (setq history (cdr history))))
|
|
|
62 (if (not what)
|
|
|
63 (error "Command history exhausted")
|
|
|
64 ;; Try to remove any useless command history element for this command.
|
|
|
65 (if (eq (car (car command-history)) 'repeat-matching-complex-command)
|
|
|
66 (setq command-history (cdr command-history)))
|
|
|
67 (edit-and-eval-command "Redo: " what))))
|
|
|
68
|
|
|
69 (defvar default-command-history-filter-garbage
|
|
|
70 '(command-history-mode
|
|
|
71 list-command-history
|
|
|
72 electric-command-history)
|
|
|
73 "*A list of symbols to be ignored by `default-command-history-filter'.
|
|
|
74 It that function is given a list whose car is an element of this list,
|
|
|
75 then it will return non-nil (indicating the list should be discarded from
|
|
|
76 the history).
|
|
|
77 Initially, all commands related to the command history are discarded.")
|
|
|
78
|
|
|
79 (defvar list-command-history-filter 'default-command-history-filter
|
|
|
80 "Predicate to test which commands should be excluded from the history listing.
|
|
|
81 If non-nil, should be the name of a function of one argument.
|
|
|
82 It is passed each element of the command history when
|
|
|
83 \\[list-command-history] is called. If the filter returns non-nil for
|
|
|
84 some element, that element is excluded from the history listing. The
|
|
|
85 default filter removes commands associated with the command-history.")
|
|
|
86
|
|
|
87 (defun default-command-history-filter (frob)
|
|
|
88 "Filter commands matching `default-command-history-filter-garbage' list
|
|
|
89 from the command history."
|
|
|
90 (or (not (consp frob))
|
|
|
91 (memq (car frob) default-command-history-filter-garbage)))
|
|
|
92
|
|
|
93 (defvar list-command-history-max 32
|
|
|
94 "*If non-nil, maximum length of the listing produced by `list-command-history'.")
|
|
|
95
|
|
|
96 ;;;###autoload
|
|
|
97 (defun list-command-history ()
|
|
|
98 "List history of commands typed to minibuffer.
|
|
|
99 The number of commands listed is controlled by `list-command-history-max'.
|
|
|
100 Calls value of `list-command-history-filter' (if non-nil) on each history
|
|
|
101 element to judge if that element should be excluded from the list.
|
|
|
102
|
|
|
103 The buffer is left in Command History mode."
|
|
|
104 (interactive)
|
|
|
105 (with-output-to-temp-buffer
|
|
|
106 "*Command History*"
|
|
|
107 (let ((history command-history)
|
|
|
108 (buffer-read-only nil)
|
|
|
109 (count (or list-command-history-max -1)))
|
|
|
110 (while (and (/= count 0) history)
|
|
|
111 (if (and (boundp 'list-command-history-filter)
|
|
|
112 list-command-history-filter
|
|
|
113 (funcall list-command-history-filter (car history)))
|
|
|
114 nil
|
|
|
115 (setq count (1- count))
|
|
|
116 (prin1 (car history))
|
|
|
117 (terpri))
|
|
|
118 (setq history (cdr history))))
|
|
|
119 (save-excursion
|
|
|
120 (set-buffer "*Command History*")
|
|
|
121 (goto-char (point-min))
|
|
|
122 (if (eobp)
|
|
|
123 (error "No command history")
|
|
|
124 (Command-history-setup)))))
|
|
|
125
|
|
|
126 (defun Command-history-setup (&optional majormode modename keymap)
|
|
|
127 (set-buffer "*Command History*")
|
|
|
128 (use-local-map (or keymap command-history-map))
|
|
|
129 (lisp-mode-variables nil)
|
|
|
130 (set-syntax-table emacs-lisp-mode-syntax-table)
|
|
|
131 (setq buffer-read-only t)
|
|
|
132 (use-local-map (or keymap command-history-map))
|
|
|
133 (setq major-mode (or majormode 'command-history-mode))
|
|
|
134 (setq mode-name (or modename "Command History")))
|
|
|
135
|
|
|
136 (if command-history-map
|
|
|
137 nil
|
|
|
138 (setq command-history-map (make-sparse-keymap))
|
|
|
139 (set-keymap-parent command-history-map shared-lisp-mode-map)
|
|
|
140 (set-keymap-name command-history-map 'command-history-map)
|
|
|
141 (suppress-keymap command-history-map)
|
|
|
142 (define-key command-history-map "x" 'command-history-repeat)
|
|
|
143 (define-key command-history-map "\n" 'next-line)
|
|
|
144 (define-key command-history-map "\r" 'next-line)
|
|
161
|
145 (define-key command-history-map 'backspace 'previous-line)
|
|
|
146 (define-key command-history-map 'delete 'previous-line))
|
|
0
|
147
|
|
|
148 (defun command-history-repeat ()
|
|
|
149 "Repeat the command shown on the current line.
|
|
|
150 The buffer for that command is the previous current buffer."
|
|
|
151 (interactive)
|
|
|
152 (save-excursion
|
|
|
153 (eval (prog1
|
|
|
154 (save-excursion
|
|
|
155 (beginning-of-line)
|
|
|
156 (read (current-buffer)))
|
|
|
157 (set-buffer
|
|
|
158 (car (cdr (buffer-list))))))))
|
|
|
159
|
|
|
160 ;;;###autoload
|
|
|
161 (defun command-history-mode ()
|
|
|
162 "Major mode for examining commands from `command-history'.
|
|
|
163 The number of commands listed is controlled by `list-command-history-max'.
|
|
|
164 The command history is filtered by `list-command-history-filter' if non-nil.
|
|
|
165 Use \\<command-history-map>\\[command-history-repeat] to repeat the command on the current line.
|
|
|
166
|
|
|
167 Otherwise much like Emacs-Lisp Mode except that there is no self-insertion
|
|
|
168 and digits provide prefix arguments. Tab does not indent.
|
|
|
169 \\{command-history-map}
|
|
|
170 Calls the value of `command-history-hook' if that is non-nil.
|
|
|
171 The Command History listing is recomputed each time this mode is invoked."
|
|
|
172 (interactive)
|
|
|
173 (list-command-history)
|
|
|
174 (pop-to-buffer "*Command History*")
|
|
|
175 (run-hooks 'command-history-hook))
|
|
|
176
|
|
|
177 (provide 'chistory)
|
|
|
178
|
|
|
179 ;;; chistory.el ends here
|
