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.

@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/locals.info
@node Standard Buffer-Local Variables, Standard Keymaps, Standard Errors, Top
@appendix Buffer-Local Variables
@c The title "Standard Buffer-Local Variables" is too long for
@c smallbook. --rjc 30mar92

  The table below lists the general-purpose Emacs variables that are
automatically local (when set) in each buffer.  Many Lisp packages
define such variables for their internal use; we don't list them here.

@table @code
@item abbrev-mode
@pxref{Abbrevs}

@item auto-fill-function
@pxref{Auto Filling}

@item buffer-auto-save-file-name
@pxref{Auto-Saving}

@item buffer-backed-up
@pxref{Backup Files}

@item buffer-display-count
@xref{Buffers and Windows}.

@item buffer-display-table
@pxref{Display Tables}

@item buffer-display-time
@xref{Buffers and Windows}.

@item buffer-file-format
@pxref{Format Conversion}

@item buffer-file-name
@pxref{Buffer File Name}

@item buffer-file-number
@pxref{Buffer File Name}

@item buffer-file-truename
@pxref{Buffer File Name}

@item buffer-file-type
@pxref{Files and MS-DOS}

@item buffer-invisibility-spec
@pxref{Invisible Text}

@item buffer-offer-save
@pxref{Saving Buffers}

@item buffer-read-only
@pxref{Read Only Buffers}

@item buffer-saved-size
@pxref{Point}

@item buffer-undo-list
@pxref{Undo}

@item cache-long-line-scans
@pxref{Text Lines}

@item case-fold-search
@pxref{Searching and Case}

@item ctl-arrow
@pxref{Usual Display}

@item comment-column
@pxref{Comments,,, xemacs, The XEmacs User's Manual}

@item default-directory
@pxref{System Environment}

@item defun-prompt-regexp
@pxref{List Motion}

@item fill-column
@pxref{Auto Filling}

@item goal-column
@pxref{Moving Point,,, xemacs, The XEmacs User's Manual}

@item left-margin
@pxref{Indentation}

@item local-abbrev-table
@pxref{Abbrevs}

@item local-write-file-hooks
@pxref{Saving Buffers}

@item major-mode
@pxref{Mode Help}

@item mark-active
@pxref{The Mark}

@item mark-ring
@pxref{The Mark}

@item minor-modes
@pxref{Minor Modes}

@item modeline-format
@pxref{Modeline Data}

@item modeline-buffer-identification
@pxref{Modeline Variables}

@item modeline-format
@pxref{Modeline Data}

@item modeline-modified
@pxref{Modeline Variables}

@item modeline-process
@pxref{Modeline Variables}

@item mode-name
@pxref{Modeline Variables}

@item overwrite-mode
@pxref{Insertion}

@item paragraph-separate
@pxref{Standard Regexps}

@item paragraph-start
@pxref{Standard Regexps}

@item point-before-scroll
Used for communication between mouse commands and scroll-bar commands.

@item require-final-newline
@pxref{Insertion}

@item selective-display
@pxref{Selective Display}

@item selective-display-ellipses
@pxref{Selective Display}

@item tab-width
@pxref{Usual Display}

@item truncate-lines
@pxref{Truncation}

@item vc-mode
@pxref{Modeline Variables}
@end table