Mercurial > hg > xemacs-beta
annotate lisp/gpm.el @ 5366:f00192e1cd49
Examining the result of #'length: `eql', not `=', it's better style & cheaper
2011-03-08 Aidan Kehoe <kehoea@parhasard.net>
* buff-menu.el (list-buffers-noselect):
* byte-optimize.el (byte-optimize-identity):
* byte-optimize.el (byte-optimize-if):
* byte-optimize.el (byte-optimize-nth):
* byte-optimize.el (byte-optimize-nthcdr):
* bytecomp.el (byte-compile-warn-wrong-args):
* bytecomp.el (byte-compile-two-args-19->20):
* bytecomp.el (byte-compile-list):
* bytecomp.el (byte-compile-beginning-of-line):
* bytecomp.el (byte-compile-set):
* bytecomp.el (byte-compile-set-default):
* bytecomp.el (byte-compile-values):
* bytecomp.el (byte-compile-values-list):
* bytecomp.el (byte-compile-integerp):
* bytecomp.el (byte-compile-multiple-value-list-internal):
* bytecomp.el (byte-compile-throw):
* cl-macs.el (cl-do-arglist):
* cl-macs.el (cl-parse-loop-clause):
* cl-macs.el (multiple-value-bind):
* cl-macs.el (multiple-value-setq):
* cl-macs.el (get-setf-method):
* cmdloop.el (command-error):
* cmdloop.el (y-or-n-p-minibuf):
* cmdloop.el (yes-or-no-p-minibuf):
* coding.el (unencodable-char-position):
* cus-edit.el (custom-face-prompt):
* cus-edit.el (custom-buffer-create-internal):
* cus-edit.el (widget-face-action):
* cus-edit.el (custom-group-value-create):
* descr-text.el (describe-char-unicode-data):
* dialog-gtk.el (popup-builtin-question-dialog):
* dragdrop.el (experimental-dragdrop-drop-log-function):
* dragdrop.el (experimental-dragdrop-drop-mime-default):
* easymenu.el (easy-menu-add):
* easymenu.el (easy-menu-remove):
* faces.el (read-face-name):
* faces.el (set-face-stipple):
* files.el (file-name-non-special):
* font.el (font-combine-fonts):
* font.el (font-set-face-font):
* font.el (font-parse-rgb-components):
* font.el (font-rgb-color-p):
* font.el (font-color-rgb-components):
* gnuserv.el (gnuserv-edit-files):
* help.el (key-or-menu-binding):
* help.el (function-documentation-1):
* help.el (function-documentation):
* info.el (info):
* isearch-mode.el (isearch-exit):
* isearch-mode.el (isearch-edit-string):
* isearch-mode.el (isearch-*-char):
* isearch-mode.el (isearch-complete1):
* ldap.el (ldap-encode-country-string):
* ldap.el (ldap-decode-string):
* minibuf.el (read-file-name-internal-1):
* minibuf.el (read-non-nil-coding-system):
* minibuf.el (get-user-response):
* mouse.el (drag-window-divider):
* mule/ccl.el:
* mule/ccl.el (ccl-compile-if):
* mule/ccl.el (ccl-compile-break):
* mule/ccl.el (ccl-compile-repeat):
* mule/ccl.el (ccl-compile-write-repeat):
* mule/ccl.el (ccl-compile-call):
* mule/ccl.el (ccl-compile-end):
* mule/ccl.el (ccl-compile-read-multibyte-character):
* mule/ccl.el (ccl-compile-write-multibyte-character):
* mule/ccl.el (ccl-compile-translate-character):
* mule/ccl.el (ccl-compile-mule-to-unicode):
* mule/ccl.el (ccl-compile-unicode-to-mule):
* mule/ccl.el (ccl-compile-lookup-integer):
* mule/ccl.el (ccl-compile-lookup-character):
* mule/ccl.el (ccl-compile-map-multiple):
* mule/ccl.el (ccl-compile-map-single):
* mule/devan-util.el (devanagari-compose-to-one-glyph):
* mule/devan-util.el (devanagari-composition-component):
* mule/mule-cmds.el (finish-set-language-environment):
* mule/viet-util.el:
* mule/viet-util.el (viet-encode-viscii-char):
* multicast.el (open-multicast-group):
* newcomment.el (comment-quote-nested):
* newcomment.el (comment-region):
* newcomment.el (comment-dwim):
* regexp-opt.el (regexp-opt-group):
* replace.el (map-query-replace-regexp):
* specifier.el (derive-device-type-from-tag-set):
* subr.el (skip-chars-quote):
* test-harness.el (test-harness-from-buffer):
* test-harness.el (batch-test-emacs):
* wid-edit.el (widget-choice-action):
* wid-edit.el (widget-symbol-prompt-internal):
* wid-edit.el (widget-color-action):
* window-xemacs.el (push-window-configuration):
* window-xemacs.el (pop-window-configuration):
* window.el (quit-window):
* x-compose.el (electric-diacritic):
It's better style, and cheaper (often one assembler instruction
vs. a C funcall in the byte code), to use `eql' instead of `='
when it's clear what numerical type a given result will be. Change
much of our code to do this, with the help of a byte-compiler
change (not comitted) that looked for calls to #'length (which
always returns an integer) in its args.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Tue, 08 Mar 2011 23:41:52 +0000 |
parents | 023b83f4e54b |
children | 308d34e9f07d |
rev | line source |
---|---|
398 | 1 ;;; gpm.el --- Support the mouse when emacs run on a Linux console. |
2 | |
3 ;; Copyright (C) 1999 Free Software Foundation | |
4 | |
5 ;; Author: William Perry <wmperry@gnu.org> | |
6 ;; Keywords: mouse, terminals | |
7 | |
8 ;; This file is part of XEmacs. | |
9 | |
10 ;; XEmacs is free software; you can redistribute it and/or modify | |
11 ;; it 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, | |
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 | |
613 | 21 ;; along with XEmacs; see the file COPYING. If not, write to the |
398 | 22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
23 ;; Boston, MA 02111-1307, USA. | |
24 | |
25 (defvar gpm-enabled-devices (make-hash-table :test 'eq | |
26 :size 13 | |
27 :weakness 'key) | |
28 "A hash table of devices with GPM currently turned on.") | |
502 | 29 |
398 | 30 (defun gpm-mode (&optional arg device) |
31 "Toggle GPM mouse mode. | |
32 With prefix arg, turn GPM mouse mode on if and only if arg is positive." | |
33 (interactive (list current-prefix-arg (selected-device))) | |
502 | 34 (with-fboundp 'gpm-enable |
35 (cond | |
36 ((null arg) ; Toggle | |
37 (if (gethash device gpm-enabled-devices) | |
38 (progn | |
39 (gpm-enable device nil) | |
40 (remhash device gpm-enabled-devices)) | |
41 (gpm-enable device t) | |
42 (puthash device t gpm-enabled-devices))) | |
43 ((> arg 0) ; Turn on | |
398 | 44 (gpm-enable device t) |
502 | 45 (puthash device t gpm-enabled-devices)) |
46 ((gethash device gpm-enabled-devices) ; Turn off | |
47 (gpm-enable device nil) | |
48 (remhash device gpm-enabled-devices))))) | |
398 | 49 |
50 (defun turn-on-gpm-mouse-tracking (&optional device) | |
51 ;; Enable mouse tracking on linux console | |
52 (gpm-mode 5 device)) | |
53 | |
54 (defun turn-off-gpm-mouse-tracking (&optional device) | |
55 ;; Disable mouse tracking on linux console | |
56 (gpm-mode -5 device)) | |
57 | |
502 | 58 (defun gpm-is-supported-p (device) |
59 "Returns non-nil if GPM is usable right now on DEVICE in this XEmacs session. | |
60 This checks whether GPM support was compiled in, TTY support was | |
61 compiled in, XEmacs is running on Linux, the current console/device is | |
62 TTY, and its terminal type has been set to `linux'." | |
63 (and (not noninteractive) ; Don't want to do this in batch mode | |
64 (fboundp 'gpm-enable) ; Must have C-level GPM support | |
65 (eq system-type 'linux) ; Must be running linux | |
66 (eq (device-type device) 'tty) ; on a tty | |
67 (equal "linux" (declare-fboundp ; an a linux terminal type | |
68 (console-tty-terminal-type (device-console device)))))) | |
69 | |
398 | 70 (defun gpm-create-device-hook (device) |
502 | 71 (if (gpm-is-supported-p device) |
398 | 72 (turn-on-gpm-mouse-tracking device))) |
73 | |
74 (defun gpm-delete-device-hook (device) | |
502 | 75 (if (gpm-is-supported-p device) |
398 | 76 (turn-off-gpm-mouse-tracking device))) |
77 | |
442 | 78 ;; Restore normal mouse behavior outside Emacs |
398 | 79 |
80 (add-hook 'suspend-hook 'turn-off-gpm-mouse-tracking) | |
81 (add-hook 'suspend-resume-hook 'turn-on-gpm-mouse-tracking) | |
82 (add-hook 'create-device-hook 'gpm-create-device-hook) | |
83 (add-hook 'delete-device-hook 'gpm-delete-device-hook) | |
84 | |
85 (provide 'gpm) |