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Reduce regexp usage, now CL-oriented non-regexp code available, core Lisp
lisp/ChangeLog addition:
2015-04-01 Aidan Kehoe <kehoea@parhasard.net>
When calling #'string-match with a REGEXP without regular
expression special characters, call #'search, #'mismatch, #'find,
etc. instead, making our code less likely to side-effect other
functions' match data and a little faster.
* apropos.el (apropos-command):
* apropos.el (apropos):
Call (position ?\n ...) rather than (string-match "\n" ...) here.
* buff-menu.el:
* buff-menu.el (buffers-menu-omit-invisible-buffers):
Don't fire up the regexp engine just to check if a string starts
with a space.
* buff-menu.el (select-buffers-tab-buffers-by-mode):
Don't fire up the regexp engine just to compare mode basenames.
* buff-menu.el (format-buffers-tab-line):
* buff-menu.el (build-buffers-tab-internal): Moved to being a
label within the following.
* buff-menu.el (buffers-tab-items): Use the label.
* bytecomp.el (byte-compile-log-1):
Don't fire up the regexp engine just to look for a newline.
* cus-edit.el (get):
Ditto.
* cus-edit.el (custom-variable-value-create):
Ditto, but for a colon.
* descr-text.el (describe-text-sexp):
Ditto.
* descr-text.el (describe-char-unicode-data):
Use #'split-string-by-char given that we're just looking for a
semicolon.
* descr-text.el (describe-char):
Don't fire up the regexp engine just to look for a newline.
* disass.el (disassemble-internal):
Ditto.
* files.el (file-name-sans-extension):
Implement this using #'position.
* files.el (file-name-extension):
Correct this function's docstring, implement it in terms of
#'position.
* files.el (insert-directory):
Don't fire up the regexp engine to split a string by space; don't
reverse the list of switches, this is actually a longstand bug as
far as I can see.
* gnuserv.el (gnuserv-process-filter):
Use #'position here, instead of consing inside #'split-string
needlessly.
* gtk-file-dialog.el (gtk-file-dialog-update-dropdown):
Use #'split-string-by-char here, don't fire up #'split-string for
directory-sep-char.
* gtk-font-menu.el (hack-font-truename):
Implement this more cheaply in terms of #'find,
#'split-string-by-char, #'equal, rather than #'string-match,
#'split-string, #'string-equal.
* hyper-apropos.el (hyper-apropos-grok-functions):
* hyper-apropos.el (hyper-apropos-grok-variables):
Look for a newline using #'position rather than #'string-match in
these functions.
* info.el (Info-insert-dir):
* info.el (Info-insert-file-contents):
* info.el (Info-follow-reference):
* info.el (Info-extract-menu-node-name):
* info.el (Info-menu):
Look for fixed strings using #'position or #'search as appropriate
in this file.
* ldap.el (ldap-decode-string):
* ldap.el (ldap-encode-string):
#'encode-coding-string, #'decode-coding-string are always
available, don't check if they're fboundp.
* ldap.el (ldap-decode-address):
* ldap.el (ldap-encode-address):
Use #'split-string-by-char in these functions.
* lisp-mnt.el (lm-creation-date):
* lisp-mnt.el (lm-last-modified-date):
Don't fire up the regexp engine just to look for spaces in this file.
* menubar-items.el (default-menubar):
Use (not (mismatch ...)) rather than #'string-match here, for
simple regexp.
Use (search "beta" ...) rather than (string-match "beta" ...)
* menubar-items.el (sort-buffers-menu-alphabetically):
* menubar-items.el (sort-buffers-menu-by-mode-then-alphabetically):
* menubar-items.el (group-buffers-menu-by-mode-then-alphabetically):
Don't fire up the regexp engine to check if a string starts with
a space or an asterisk.
Use the more fine-grained results of #'compare-strings; compare
case-insensitively for the buffer menu.
* menubar-items.el (list-all-buffers):
* menubar-items.el (tutorials-menu-filter):
Use #'equal rather than #'string-equal, which, in this context,
has the drawback of not having a bytecode, and no redeeming
features.
* minibuf.el:
* minibuf.el (un-substitute-in-file-name):
Use #'count, rather than counting the occurences of $ using the
regexp engine.
* minibuf.el (read-file-name-internal-1):
Don't fire up the regexp engine to search for ?=.
* mouse.el (mouse-eval-sexp):
Check for newline with #'find.
* msw-font-menu.el (mswindows-reset-device-font-menus):
Split a string by newline with #'split-string-by-char.
* mule/japanese.el:
* mule/japanese.el ("Japanese"):
Use #'search rather than #'string-match; canoncase before
comparing; fix a bug I had introduced where I had been making case
insensitive comparisons where the case mattered.
* mule/korea-util.el (default-korean-keyboard):
Look for ?3 using #'find, not #'string-march.
* mule/korea-util.el (quail-hangul-switch-hanja):
Search for a fixed string using #'search.
* mule/mule-cmds.el (set-locale-for-language-environment):
#'position, #'substitute rather than #'string-match,
#'replace-in-string.
* newcomment.el (comment-make-extra-lines):
Use #'search rather than #'string-match for a simple string.
* package-get.el (package-get-remote-filename):
Use #'position when looking for ?@
* process.el (setenv):
* process.el (read-envvar-name):
Use #'position when looking for ?=.
* replace.el (map-query-replace-regexp):
Use #'split-string-by-char instead of using an inline
implementation of it.
* select.el (select-convert-from-cf-text):
* select.el (select-convert-from-cf-unicodetext):
Use #'position rather than #'string-match in these functions.
* setup-paths.el (paths-emacs-data-root-p):
Use #'search when looking for simple string.
* sound.el (load-sound-file):
Use #'split-string-by-char rather than an inline reimplementation
of same.
* startup.el (splash-screen-window-body):
* startup.el (splash-screen-tty-body):
Search for simple strings using #'search.
* version.el (emacs-version):
Ditto.
* x-font-menu.el (hack-font-truename):
Implement this more cheaply in terms of #'find,
#'split-string-by-char, #'equal, rather than #'string-match,
#'split-string, #'string-equal.
* x-font-menu.el (x-reset-device-font-menus-core):
Use #'split-string-by-char here.
* x-init.el (x-initialize-keyboard):
Search for a simple string using #'search.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Wed, 01 Apr 2015 14:28:20 +0100 |
parents | 576fb035e263 |
children |
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@c -*-texinfo-*- @c This is part of the XEmacs Lisp Reference Manual. @c Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. @c See the file lispref.texi for copying conditions. @setfilename ../../info/hooks.info @node Standard Hooks, Index, Standard Keymaps, Top @appendix Standard Hooks The following is a list of hook variables that let you provide functions to be called from within Emacs on suitable occasions. Most of these variables have names ending with @samp{-hook}. They are @dfn{normal hooks}, run by means of @code{run-hooks}. The value of such a hook is a list of functions. The recommended way to put a new function on such a hook is to call @code{add-hook}. @xref{Hooks}, for more information about using hooks. The variables whose names end in @samp{-function} have single functions as their values. Usually there is a specific reason why the variable is not a normal hook, such as the need to pass arguments to the function. (In older Emacs versions, some of these variables had names ending in @samp{-hook} even though they were not normal hooks.) The variables whose names end in @samp{-hooks} or @samp{-functions} have lists of functions as their values, but these functions are called in a special way (they are passed arguments, or else their values are used). @c !!! need xref to where each hook is documented or else document it @c by specifying what is expected, and when it is called relative to @c mode initialization.) @table @code @item activate-menubar-hook @item activate-popup-menu-hook @item ad-definition-hooks @item adaptive-fill-function @item add-log-current-defun-function @item after-change-functions @item after-delete-annotation-hook @item after-init-hook @item after-insert-file-functions @item after-revert-hook @item after-save-hook @item after-set-visited-file-name-hooks @item after-write-file-hooks @item auto-fill-function @item auto-save-hook @item before-change-functions @item before-delete-annotation-hook @item before-init-hook @item before-revert-hook @item blink-paren-function @item buffers-menu-switch-to-buffer-function @item c++-mode-hook @item c-delete-function @item c-mode-common-hook @item c-mode-hook @item c-special-indent-hook @item calendar-load-hook @item change-major-mode-hook @item command-history-hook @item comment-indent-function @item compilation-buffer-name-function @item compilation-exit-message-function @item compilation-finish-function @item compilation-parse-errors-function @item compilation-mode-hook @item create-console-hook @item create-device-hook @item create-frame-hook @item dabbrev-friend-buffer-function @item dabbrev-select-buffers-function @item delete-console-hook @item delete-device-hook @item delete-frame-hook @item deselect-frame-hook @item diary-display-hook @item diary-hook @item dired-after-readin-hook @item dired-before-readin-hook @item dired-load-hook @item dired-mode-hook @item disabled-command-hook @item display-buffer-function @item ediff-after-setup-control-frame-hook @item ediff-after-setup-windows-hook @item ediff-before-setup-control-frame-hook @item ediff-before-setup-windows-hook @item ediff-brief-help-message-function @item ediff-cleanup-hook @item ediff-control-frame-position-function @item ediff-display-help-hook @item ediff-focus-on-regexp-matches-function @item ediff-forward-word-function @item ediff-hide-regexp-matches-function @item ediff-keymap-setup-hook @item ediff-load-hook @item ediff-long-help-message-function @item ediff-make-wide-display-function @item ediff-merge-split-window-function @item ediff-meta-action-function @item ediff-meta-redraw-function @item ediff-mode-hook @item ediff-prepare-buffer-hook @item ediff-quit-hook @item ediff-registry-setup-hook @item ediff-select-hook @item ediff-session-action-function @item ediff-session-group-setup-hook @item ediff-setup-diff-regions-function @item ediff-show-registry-hook @item ediff-show-session-group-hook @item ediff-skip-diff-region-function @item ediff-split-window-function @item ediff-startup-hook @item ediff-suspend-hook @item ediff-toggle-read-only-function @item ediff-unselect-hook @item ediff-window-setup-function @item edit-picture-hook @item electric-buffer-menu-mode-hook @item electric-command-history-hook @item electric-help-mode-hook @item emacs-lisp-mode-hook @item fill-paragraph-function @item find-file-hooks @item find-file-not-found-hooks @item first-change-hook @item font-lock-after-fontify-buffer-hook @item font-lock-beginning-of-syntax-function @item font-lock-mode-hook @item fume-found-function-hook @item fume-list-mode-hook @item fume-rescan-buffer-hook @item fume-sort-function @item gnus-startup-hook @item hack-local-variables-hook @item highlight-headers-follow-url-function @item hyper-apropos-mode-hook @item indent-line-function @item indent-mim-hook @item indent-region-function @item initial-calendar-window-hook @item isearch-mode-end-hook @item isearch-mode-hook @item java-mode-hook @item kill-buffer-hook @item kill-buffer-query-functions @item kill-emacs-hook @item kill-emacs-query-functions @item kill-hooks @item LaTeX-mode-hook @item latex-mode-hook @item ledit-mode-hook @item lisp-indent-function @item lisp-interaction-mode-hook @item lisp-mode-hook @item list-diary-entries-hook @item load-read-function @item log-message-filter-function @item m2-mode-hook @item mail-citation-hook @item mail-mode-hook @item mail-setup-hook @item make-annotation-hook @item makefile-mode-hook @item map-frame-hook @item mark-diary-entries-hook @item medit-mode-hook @item menu-no-selection-hook @item mh-compose-letter-hook @item mh-folder-mode-hook @item mh-letter-mode-hook @item mim-mode-hook @item minibuffer-exit-hook @item minibuffer-setup-hook @item mode-motion-hook @item mouse-enter-frame-hook @item mouse-leave-frame-hook @item mouse-track-cleanup-hook @item mouse-track-click-hook @item mouse-track-down-hook @item mouse-track-drag-hook @item mouse-track-drag-up-hook @item mouse-track-up-hook @item mouse-yank-function @item news-mode-hook @item news-reply-mode-hook @item news-setup-hook @item nongregorian-diary-listing-hook @item nongregorian-diary-marking-hook @item nroff-mode-hook @item objc-mode-hook @item outline-mode-hook @item perl-mode-hook @item plain-TeX-mode-hook @item post-command-hook @item post-gc-hook @item pre-abbrev-expand-hook @item pre-command-hook @item pre-display-buffer-function @item pre-gc-hook @item pre-idle-hook @item print-diary-entries-hook @item prolog-mode-hook @item protect-innocence-hook @item remove-message-hook @item revert-buffer-function @item revert-buffer-insert-contents-function @item rmail-edit-mode-hook @item rmail-mode-hook @item rmail-retry-setup-hook @item rmail-summary-mode-hook @item scheme-indent-hook @item scheme-mode-hook @item scribe-mode-hook @item select-frame-hook @item send-mail-function @item shell-mode-hook @item shell-set-directory-error-hook @item special-display-function @item suspend-hook @item suspend-resume-hook @item temp-buffer-show-function @item term-setup-hook @item terminal-mode-hook @item terminal-mode-break-hook @item TeX-mode-hook @item tex-mode-hook @item text-mode-hook @item today-visible-calendar-hook @item today-invisible-calendar-hook @item tooltalk-message-handler-hook @item tooltalk-pattern-handler-hook @item tooltalk-unprocessed-message-hook @item unmap-frame-hook @item vc-checkin-hook @item vc-checkout-writable-buffer-hook @item vc-log-after-operation-hook @item vc-make-buffer-writable-hook @item view-hook @item vm-arrived-message-hook @item vm-arrived-messages-hook @item vm-chop-full-name-function @item vm-display-buffer-hook @item vm-edit-message-hook @item vm-forward-message-hook @item vm-iconify-frame-hook @item vm-inhibit-write-file-hook @item vm-key-functions @item vm-mail-hook @item vm-mail-mode-hook @item vm-menu-setup-hook @item vm-mode-hook @item vm-quit-hook @item vm-rename-current-buffer-function @item vm-reply-hook @item vm-resend-bounced-message-hook @item vm-resend-message-hook @item vm-retrieved-spooled-mail-hook @item vm-select-message-hook @item vm-select-new-message-hook @item vm-select-unread-message-hook @item vm-send-digest-hook @item vm-summary-mode-hook @item vm-summary-pointer-update-hook @item vm-summary-redo-hook @item vm-summary-update-hook @item vm-undisplay-buffer-hook @item vm-visit-folder-hook @item window-setup-hook @item write-contents-hooks @item write-file-data-hooks @item write-file-hooks @item write-region-annotate-functions @item x-lost-selection-hooks @item x-sent-selection-hooks @item zmacs-activate-region-hook @item zmacs-deactivate-region-hook @item zmacs-update-region-hook @end table