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.

Copyright 2007 Free Software Foundation

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/>.


Package distributions may be placed in this directory.
If present and a package-path is configured, packages can be installed
using the top-level Makefile.

To configure the package path, use the --with-late-packages option to
configure, which specifies a single directory in which to install the
xemacs-packages and mule-packages hierarchies provided.  If this is null,
or contains a Unix-style search path (i.e., a colon is present in the
argument of the --with-late-packages option), you will have to install
the packages by hand.

To find out if a distribution includes bundled packages, type

    make check-available-packages

There are three Make targets that may be available depending on the package
sets supplied.

    make install-bootstrap-packages
        Install a selected set of packages sufficient to support
        downloading and installing packages via the M-x list-packages
        interface.  Chose this if you want to be able to install the
        latest version of each package immediately.

    make install-nomule-packages
        Install the full distribution of packages that do not require a
        Mule-enabled XEmacs.  Choose this package if you don't have a
        Mule-enabled XEmacs and want the convenience of a single-command
        installation.  You can add or update packages via M-x list-packages
        at any time.

    make install-all-packages
        Install the full distribution of packages, including those requiring
        a Mule-enabled XEmacs.  Choose this package if you have a Mule-
        enabled XEmacs and want the convenience of a single-command
        installation.  You can add or update packages via M-x list-packages
        at any time.

DISTRIBUTOR'S NOTE: you may choose what packages you wish to include in
bootstrap.tar.gz, but to make list-packages work you need to include at
least xemacs-base, dired, and efs.  The tarball should unpack directly as
an xemacs-packages tree (and optionaly, a mule-packages tree.  Also, if
either of xemacs-sumo.tar.gz or xemacs-mule-sumo.tar.gz is provided, the
other should be as well.

If packages are not available with the distribution, you can get them at

    ftp://ftp.xemacs.org/pub/xemacs/packages/xemacs-sumo.tar.gz
    ftp://ftp.xemacs.org/pub/xemacs/packages/xemacs-mule-sumo.tar.gz
    http://turnbull.sk.tsukuba.ac.jp/Tools/XEmacs/bootstrap.tar.gz

and place them in the same directory as this file.  You can also make your
own bootstrap.tar.gz by creating a directory xemacs-packages, then
untarring the packages of your choice into that directory, and tarring the
whole thing up with "tar czf bootstrap.tar.gz xemacs-packages".  (If you
wish to include mule-packages, you should place them in mule-packages as
a sibling of xemacs-packages.)

This facility currently does not support installations which configure
the --with-early-packages, --with-late-packages, or --with-last-packages
options.

This facility currently will not overwrite an existing package
installation, not even if a whole hierarchy (usually the mule-packages)
is missing.  In particular, you cannot use this feature to add the
mule-packages to a package installation which lacks them, even if the
hierarchy is missing, or the xemacs-packages hierarchy was installed
this way.  Nor can you "upgrade" a bootstrap installation to a full
installation.  If you wish to do any of these things you will need to
remove the existing hierarchies.