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.

;;; x-select.el --- Lisp interface to X Selections.

;; Copyright (C) 1990, 1997 Free Software Foundation, Inc.
;; Copyright (C) 1995 Sun Microsystems.

;; Maintainer: XEmacs Development Team
;; Keywords: extensions, dumped

;; 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 19.30 (select.el).

;;; Commentary:

;; This file is dumped with XEmacs (when X support is compiled in).

;; The selection code requires us to use certain symbols whose names are
;; all upper-case; this may seem tasteless, but it makes there be a 1:1
;; correspondence between these symbols and X Atoms (which are upcased).

;;; Code:

(globally-declare-fboundp
 '(x-get-cutbuffer-internal
   x-rotate-cutbuffers-internal x-store-cutbuffer-internal))

(define-obsolete-function-alias 'x-selection-exists-p 'selection-exists-p)
(define-obsolete-function-alias 'x-selection-owner-p 'selection-owner-p)
(define-obsolete-variable-alias 'x-selection-converter-alist 'selection-converter-alist)
(define-obsolete-variable-alias 'x-lost-selection-hooks 'lost-selection-hooks)
(define-obsolete-variable-alias 'x-selected-text-type 'selection-preferred-types)
(define-obsolete-function-alias 'x-valid-simple-selection-p 'valid-simple-selection-p)
(define-obsolete-function-alias 'x-own-selection 'own-selection)
(define-obsolete-function-alias 'x-disown-selection 'disown-selection)
(define-obsolete-function-alias 'x-delete-primary-selection 'delete-primary-selection)
(define-obsolete-function-alias 'x-copy-primary-selection 'copy-primary-selection)
(define-obsolete-function-alias 'x-kill-primary-selection 'kill-primary-selection)
(define-obsolete-function-alias 'x-select-make-extent-for-selection
  'select-make-extent-for-selection)
(define-obsolete-function-alias 'x-cut-copy-clear-internal 'cut-copy-clear-internal)
(define-obsolete-function-alias 'x-get-selection 'get-selection)
(define-obsolete-function-alias 'x-get-clipboard 'get-clipboard)
(define-obsolete-function-alias 'x-yank-clipboard-selection
  'yank-clipboard-selection)
(define-obsolete-function-alias 'x-disown-selection-internal
  'disown-selection-internal)

(defun x-get-secondary-selection ()
  "Return text selected from some X window."
  (get-selection 'SECONDARY))

(defun x-own-secondary-selection (selection &optional type)
  "Make a secondary X Selection of the given argument.  The argument may be a
string or a cons of two markers (in which case the selection is considered to
be the text between those markers)."
  (interactive (if (not current-prefix-arg)
		   (list (read-string "Store text for pasting: "))
		 (list (cons ;; these need not be ordered.
			(copy-marker (point-marker))
			(copy-marker (mark-marker))))))
  (own-selection selection 'SECONDARY))

(defun x-notice-selection-requests (selection type successful)
  "for possible use as the value of `x-sent-selection-hooks'."
  (if (not successful)
      (message "Selection request failed to convert %s to %s"
	       selection type)
    (message "Sent selection %s as %s" selection type)))

(defun x-notice-selection-failures (selection type successful)
  "for possible use as the value of `x-sent-selection-hooks'."
  (or successful
      (message "Selection request failed to convert %s to %s"
	       selection type)))

;(setq x-sent-selection-hooks 'x-notice-selection-requests)
;(setq x-sent-selection-hooks 'x-notice-selection-failures)


;;; Cut Buffer support

;;; FSF name x-get-cut-buffer
(defun x-get-cutbuffer (&optional which-one)
  "Return the value of one of the 8 X server cut buffers.
Optional arg WHICH-ONE should be a number from 0 to 7, defaulting to 0.
Cut buffers are considered obsolete; you should use selections instead.
This function does nothing if cut buffer support was not compiled in."
  (when (fboundp 'x-get-cutbuffer-internal)
    (x-get-cutbuffer-internal
     (aref [CUT_BUFFER0 CUT_BUFFER1 CUT_BUFFER2 CUT_BUFFER3
			CUT_BUFFER4 CUT_BUFFER5 CUT_BUFFER6 CUT_BUFFER7]
	   (or which-one 0)))))

;;; FSF name x-set-cut-buffer
(defun x-store-cutbuffer (string &optional push)
  "Store STRING into the X server's primary cut buffer.
If optional arg PUSH is non-nil, also rotate the cut buffers: this
means the previous value of the primary cut buffer moves to the second
cut buffer, and the second to the third, and so on (there are 8 buffers.)
Cut buffers are considered obsolete; you should use selections instead.
This function does nothing if cut buffer support was not compiled in."
  (when (fboundp 'x-store-cutbuffer-internal)
    (when push
      (x-rotate-cutbuffers-internal 1))
    (x-store-cutbuffer-internal 'CUT_BUFFER0 string)))


;FSFmacs (provide 'select)

;;; x-select.el ends here.