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.

;;; linux.el --- define function key sequences for the Linux console

;; Author: Ben Wing
;; Keywords: terminals

;; Copyright (C) 1996 Ben Wing.
;; 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: FSF 21.0.103.
;;; (All the define-keys are our own.)

;;; Commentary:

;;; Code:

;; The Linux console handles Latin-1 by default.

(if-fboundp 'set-terminal-coding-system
    (unless (declare-fboundp (terminal-coding-system))
      (set-terminal-coding-system 'iso-8859-1)))

;; Make Latin-1 input characters work, too.
;; Meta will continue to work, because the kernel
;; turns that into Escape.

(let ((value (current-input-mode)))
  ;; The third arg only matters in that it is not t or nil.
  (set-input-mode (nth 0 value) (nth 1 value) 'iso-8859-1 (nth 3 value)))

;; The defines below seem to get automatically set in recent Termcaps.
;; It was probably the case that in 1996, there was no good Linux termcap,
;; which is why such a file was needed.

; ;; Termcap or terminfo should set these next four?
; (define-key function-key-map "\e[A" [up])
; (define-key function-key-map "\e[B" [down])
; (define-key function-key-map "\e[C" [right])
; (define-key function-key-map "\e[D" [left])

; (define-key function-key-map "\e[[A" [f1])
; (define-key function-key-map "\e[[B" [f2])
; (define-key function-key-map "\e[[C" [f3])
; (define-key function-key-map "\e[[D" [f4])
; (define-key function-key-map "\e[[E" [f5])
; (define-key function-key-map "\e[17~" [f6])
; (define-key function-key-map "\e[18~" [f7])
; (define-key function-key-map "\e[19~" [f8])
; (define-key function-key-map "\e[20~" [f9])
; (define-key function-key-map "\e[21~" [f10])
; (define-key function-key-map "\e[23~" [f11])
; (define-key function-key-map "\e[24~" [f12])
; (define-key function-key-map "\e[25~" [f13])
; (define-key function-key-map "\e[26~" [f14])
; (define-key function-key-map "\e[28~" [f15])
; (define-key function-key-map "\e[29~" [f16])
; (define-key function-key-map "\e[31~" [f17])
; (define-key function-key-map "\e[32~" [f18])
; (define-key function-key-map "\e[33~" [f19])
; (define-key function-key-map "\e[34~" [f20])

;; But they come out f13-f20 (see above), which are not what we
;; normally call the shifted function keys.  F11 = Shift-F1, F2 =
;; Shift-F2.  What a mess, see below.
(define-key function-key-map "\e[25~" [(shift f3)])
(define-key function-key-map "\e[26~" [(shift f4)])
(define-key function-key-map "\e[28~" [(shift f5)])
(define-key function-key-map "\e[29~" [(shift f6)])
(define-key function-key-map "\e[31~" [(shift f7)])
(define-key function-key-map "\e[32~" [(shift f8)])
(define-key function-key-map "\e[33~" [(shift f9)])
(define-key function-key-map "\e[34~" [(shift f10)])

;; I potentially considered these.  They would make people's Shift-F1 and
;; Shift-F2 bindings work -- but of course they would fail to work if the
;; person also put F11 and F12 bindings.  It might also be confusing because
;; the person with no bindings who hits f11 gets "error shift-f1 unbound".
;; #### If only there were a proper way around this.
;(define-key global-map 'f11 [(shift f1)])
;(define-key global-map 'f12 [(shift f2)])

; (define-key function-key-map "\e[1~" [home])
 ;; seems to not get handled correctly automatically
 (define-key function-key-map "\e[2~" [insert])
; (define-key function-key-map "\e[3~" [delete])
; (define-key function-key-map "\e[4~" [end])
; (define-key function-key-map "\e[5~" [prior])
; (define-key function-key-map "\e[6~" [next])
; (define-key function-key-map "\e[G" [kp-5])

; (define-key function-key-map "\eOp" [kp-0])
; (define-key function-key-map "\eOq" [kp-1])
; (define-key function-key-map "\eOr" [kp-2])
; (define-key function-key-map "\eOs" [kp-3])
; (define-key function-key-map "\eOt" [kp-4])
; (define-key function-key-map "\eOu" [kp-5])
; (define-key function-key-map "\eOv" [kp-6])
; (define-key function-key-map "\eOw" [kp-7])
; (define-key function-key-map "\eOx" [kp-8])
; (define-key function-key-map "\eOy" [kp-9])

; (define-key function-key-map "\eOl" [kp-add])
; (define-key function-key-map "\eOS" [kp-subtract])
; (define-key function-key-map "\eOM" [kp-enter])
; (define-key function-key-map "\eOR" [kp-multiply])
; (define-key function-key-map "\eOQ" [kp-divide])
; (define-key function-key-map "\eOn" [kp-decimal])
; (define-key function-key-map "\eOP" [kp-numlock])

;;; linux.el ends here