1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
;;; echistory.el --- Electric Command History Mode
;; Copyright (C) 1985, 2001-2011 Free Software Foundation, Inc.
;; Author: K. Shane Hartman
;; Maintainer: FSF
;; 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 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'electric) ; command loop
(require 'chistory) ; history lister
;; Dynamically bound in electric-command-history
(defvar electric-history-in-progress)
;;;###autoload
(defun Electric-command-history-redo-expression (&optional noconfirm)
"Edit current history line in minibuffer and execute result.
With prefix arg NOCONFIRM, execute current line as-is without editing."
(interactive "P")
(let (todo)
(with-current-buffer "*Command History*"
(beginning-of-line)
(setq todo (read (current-buffer)))
(if (boundp 'electric-history-in-progress)
(if todo (throw 'electric-history-quit (list noconfirm todo)))))))
(defvar electric-history-map
(let ((map (make-sparse-keymap)))
(define-key map [t] 'Electric-history-undefined)
(define-key map "\e" (make-sparse-keymap))
(define-key map [?\e t] 'Electric-history-undefined)
(define-key map "\C-u" 'universal-argument)
(define-key map " " 'Electric-command-history-redo-expression)
(define-key map "!" 'Electric-command-history-redo-expression)
(define-key map "\e\C-x" 'eval-sexp)
(define-key map "\e\C-d" 'down-list)
(define-key map "\e\C-u" 'backward-up-list)
(define-key map "\e\C-b" 'backward-sexp)
(define-key map "\e\C-f" 'forward-sexp)
(define-key map "\e\C-a" 'beginning-of-defun)
(define-key map "\e\C-e" 'end-of-defun)
(define-key map "\e\C-n" 'forward-list)
(define-key map "\e\C-p" 'backward-list)
(define-key map "q" 'Electric-history-quit)
(define-key map "\C-c" nil)
(define-key map "\C-c\C-c" 'Electric-history-quit)
(define-key map "\C-]" 'Electric-history-quit)
(define-key map "\C-z" 'suspend-frame)
(define-key map (char-to-string help-char) 'Helper-help)
(define-key map "?" 'Helper-describe-bindings)
(define-key map "\e>" 'end-of-buffer)
(define-key map "\e<" 'beginning-of-buffer)
(define-key map "\n" 'next-line)
(define-key map "\r" 'next-line)
(define-key map "\177" 'previous-line)
(define-key map "\C-n" 'next-line)
(define-key map "\C-p" 'previous-line)
(define-key map "\ev" 'scroll-down)
(define-key map "\C-v" 'scroll-up)
(define-key map [home] 'beginning-of-buffer)
(define-key map [down] 'next-line)
(define-key map [up] 'previous-line)
(define-key map [prior] 'scroll-down)
(define-key map [next] 'scroll-up)
(define-key map "\C-l" 'recenter)
(define-key map "\e\C-v" 'scroll-other-window)
map)
"Keymap for Electric Command History mode.")
(defvar electric-command-history-hook nil
"If non-nil, its value is called by `electric-command-history'.")
(defvar Helper-return-blurb) ; from helper.el
(defun electric-command-history ()
"\\<electric-history-map>Major mode for examining and redoing commands from `command-history'.
This pops up a window with the Command History listing.
The number of command listed is controlled by `list-command-history-max'.
The command history is filtered by `list-command-history-filter' if non-nil.
Combines typeout Command History list window with menu like selection
of an expression from the history for re-evaluation in the *original* buffer.
The history displayed is filtered by `list-command-history-filter' if non-nil.
Like Emacs-Lisp mode except that characters do not insert themselves and
Tab and Linefeed do not indent. Instead these commands are provided:
\\{electric-history-map}
Calls the value of `electric-command-history-hook' if that is non-nil.
The Command History listing is recomputed each time this mode is invoked."
(interactive)
(let ((electric-history-in-progress t)
(old-buffer (current-buffer))
(todo))
(unwind-protect
(setq todo
(catch 'electric-history-quit
(save-window-excursion
(save-window-excursion
(list-command-history)
(set-buffer "*Command History*")
(Command-history-setup)
(setq major-mode 'electric-command-history)
(setq mode-name "Electric History")
(use-local-map electric-history-map))
(Electric-pop-up-window "*Command History*")
(run-hooks 'electric-command-history-hook)
(if (eobp)
(progn (ding)
(message "No command history.")
(throw 'electric-history-quit nil))
(let ((Helper-return-blurb "return to History"))
(Electric-command-loop 'electric-history-quit
"->" t))))))
(set-buffer "*Command History*")
(command-history-mode)
(bury-buffer (current-buffer)))
(if (consp todo)
(progn (set-buffer old-buffer)
(if (car todo)
(apply (car (car (cdr todo))) (cdr (car (cdr todo))))
(edit-and-eval-command "Redo: " (car (cdr todo))))))))
(defun Electric-history-undefined ()
(interactive)
(ding)
(message "%s" (substitute-command-keys "Type \\[Helper-help] for help, ? for commands, C-c C-c to quit, Space to execute"))
(sit-for 4))
(defun Electric-history-quit ()
"Quit Electric Command History, restoring previous window configuration."
(interactive)
(if (boundp 'electric-history-in-progress)
(progn (message "")
(throw 'electric-history-quit nil))))
(provide 'echistory)
;;; echistory.el ends here
|
