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.

;;; korea-util.el --- utilities for Korean -*- coding: iso-2022-7bit; -*-

;; Copyright (C) 1997 Free Software Foundation, Inc.

;; Keywords: mule, multilingual, Korean

;; This file is part of XEmacs.

;; XEmacs 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.

;; XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Synched up with: Emacs 21.1 (language/korea-util.el).

;;; Commentary:

;;; Code:

(globally-declare-boundp '(input-method-function
			   isearch-input-method-function
			   isearch-input-method-local-p))

;;;###autoload
(defvar default-korean-keyboard
  (if (find ?3 (getenv "HANGUL_KEYBOARD_TYPE"))
      "3"
    "")
  "*The kind of Korean keyboard for Korean input method.
\"\" for 2, \"3\" for 3.")

;; functions useful for Korean text input

(defun toggle-korean-input-method ()
  "Turn on or off a Korean text input method for the current buffer."
  (interactive)
  (if current-input-method
      (inactivate-input-method)
    (activate-input-method
     (concat "korean-hangul" default-korean-keyboard))))

(defun quail-hangul-switch-symbol-ksc (&rest ignore)
  "Swith to/from Korean symbol package."
  (interactive "i")
  (and current-input-method
       (if (string-equal current-input-method "korean-symbol")
	   (activate-input-method (concat "korean-hangul"
					  default-korean-keyboard))
	 (activate-input-method "korean-symbol"))))

(defun quail-hangul-switch-hanja (&rest ignore)
  "Swith to/from Korean hanja package."
  (interactive "i")
  (and current-input-method
       (if (search "korean-hanja" current-input-method :test #'equalp)
	   (activate-input-method (concat "korean-hangul"
					  default-korean-keyboard))
	 (activate-input-method (concat "korean-hanja"
					default-korean-keyboard)))))

;; The following three commands are set in isearch-mode-map.

(defun isearch-toggle-korean-input-method ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (toggle-korean-input-method))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

(defun isearch-hangul-switch-symbol-ksc ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (quail-hangul-switch-symbol-ksc))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

(defun isearch-hangul-switch-hanja ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (quail-hangul-switch-hanja))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

;; Information for setting and exiting Korean environment.
(defvar korean-key-bindings
  `((global [(shift space)] toggle-korean-input-method nil)
    (global [(control f9)] quail-hangul-switch-symbol-ksc nil)
    (global [f9]  quail-hangul-switch-hanja nil)
    (,isearch-mode-map [(shift space)] isearch-toggle-korean-input-method nil)
    (,isearch-mode-map [(control f9)] isearch-hangul-switch-symbol-ksc nil)
    (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))

;;;###autoload
(defun setup-korean-environment-internal ()
  (let ((key-bindings korean-key-bindings))
    (while key-bindings
      (let* ((this (car key-bindings))
	     (key (nth 1 this))
	     (new-def (nth 2 this))
	     old-def)
	(if (eq (car this) 'global)
	    (progn
	      (setq old-def (global-key-binding key))
	      (global-set-key key new-def))
	  (setq old-def (lookup-key (car this) key))
	  (define-key (car this) key new-def))
	(setcar (nthcdr 3 this) old-def))
      (setq key-bindings (cdr key-bindings)))))

(defun exit-korean-environment ()
  "Exit Korean language environment."
  (let ((key-bindings korean-key-bindings))
    (while key-bindings
      (let* ((this (car key-bindings))
	     (key (nth 1 this))
	     (new-def (nth 2 this))
	     (old-def (nth 3 this)))
	(if (eq (car this) 'global)
	    (if (eq (global-key-binding key) new-def)
		(global-set-key key old-def))
	  (if (eq (lookup-key (car this) key) new-def)
	      (define-key (car this) key old-def))))
      (setq key-bindings (cdr key-bindings)))))

;;
(provide 'korea-util)

;;; korea-util.el ends here