Mercurial > hg > xemacs-beta
annotate lisp/fontl-hooks.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 | d44af0c54775 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 217 | 1 ;;; fontl-hooks.el --- pre-loaded stuff for font-lock. |
| 2 | |
| 3 ;; Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. | |
| 4 ;; Copyright (C) 1995 Amdahl Corporation. | |
| 5 ;; Copyright (C) 1996 Ben Wing. | |
| 6 | |
| 7 ;; This file is part of XEmacs. | |
| 8 | |
| 9 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 10 ;; under the terms of the GNU General Public License as published by | |
| 11 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 12 ;; any later version. | |
| 13 | |
| 14 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 ;; General Public License for more details. | |
| 18 | |
| 19 ;; You should have received a copy of the GNU General Public License | |
| 20 ;; along with XEmacs; see the file COPYING. If not, write to the | |
| 21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 ;; Boston, MA 02111-1307, USA. | |
| 23 | |
| 24 ;;; Synched up with: FSF 19.30. (font-lock.el) | |
| 25 | |
| 26 ;;; Commentary: | |
| 27 | |
| 28 ;; The reason for the existence of this file is so that modes can | |
| 29 ;; call `font-lock-set-defaults' without worrying about whether | |
| 30 ;; font-lock is loaded. We don't autoload this from font-lock.el | |
| 31 ;; because loading font-lock.el automatically turns font-lock on. | |
| 32 | |
| 33 ;;; Code: | |
| 34 | |
| 35 (defun font-lock-set-defaults (&optional explicit-defaults) | |
| 36 "Set fontification defaults appropriately for this mode. | |
| 37 Sets `font-lock-keywords', `font-lock-keywords-only', `font-lock-syntax-table', | |
| 38 `font-lock-beginning-of-syntax-function' and | |
| 39 `font-lock-keywords-case-fold-search'. | |
| 40 | |
| 41 If `font-lock-defaults' is currently set, it is used. Otherwise, the | |
| 42 symbol naming the major mode is examined for a `font-lock-defaults' | |
| 43 property. If that is not present, but a variable `foo-mode-font-lock-keywords' | |
| 44 is, the value of that variable is used as the default for | |
| 45 `font-lock-keywords'. Various other backward-compatible behaviors also | |
| 46 exist -- if you're curious, look at the source. | |
| 47 | |
| 48 The value of `font-lock-maximum-decoration' is used to determine which | |
| 49 set of keywords applies, if more than one exists. | |
| 50 | |
| 51 This will also put the buffer into Font Lock mode if any keywords exist | |
| 52 and if auto-fontification is called for, as determined by | |
| 53 `font-lock-auto-fontify', `font-lock-mode-enable-list', and | |
| 54 `font-lock-mode-disable-list'. | |
| 55 | |
| 56 Calling this function multiple times in the same buffer is safe -- this | |
| 57 function keeps track of whether it has already been called in this | |
| 58 buffer, and does nothing if so. This allows for multiple ways of getting | |
| 59 Font Lock properly initialized in a buffer, to deal with existing major | |
| 60 modes that do not call this function. (For example, Font Lock adds this | |
| 61 function to `find-file-hooks'.) | |
| 62 | |
| 63 Major modes that have any font-lock defaults specified should call this | |
| 64 function during their initialization process, after they have set | |
| 65 the variable `major-mode'. | |
| 66 | |
| 67 If EXPLICIT-DEFAULTS is t, this function will not check whether it | |
| 68 has already been run in this buffer, and will always do the full | |
| 69 computation. | |
| 70 | |
| 71 If EXPLICIT-DEFAULTS is not nil and not t, it should be something | |
| 72 that is allowable as a value for `font-lock-defaults' and will be | |
| 73 used to initialize the Font Lock variables." | |
| 74 | |
| 75 (when | |
| 76 (and | |
| 77 (featurep 'font-lock) | |
| 78 (if font-lock-auto-fontify | |
| 79 (not (memq major-mode font-lock-mode-disable-list)) | |
| 80 (memq major-mode font-lock-mode-enable-list)) | |
| 81 (font-lock-set-defaults-1 explicit-defaults) | |
| 82 font-lock-keywords) | |
| 83 (turn-on-font-lock))) | |
| 84 | |
| 85 (provide 'fontl-hooks) | |
| 86 | |
| 87 ;;; fontl-hooks.el ends here |