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.

/* Define console object for XEmacs.
   Copyright (C) 1996, 2002 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: Not in FSF. */

/* Written by Ben Wing. */

#ifndef INCLUDED_console_h_
#define INCLUDED_console_h_

/* Devices and consoles are similar entities.  The idea is that
   a console represents a physical keyboard/mouse/other-input-source
   while a device represents a display where frames appear on.
   Nowadays "multi-headed" displays with multiple physical screens
   are becoming familiar; in the XEmacs nomenclature, this maps to a
   "console" supporting multiple "devices".

   In the X world, a console is a "Display" while a device is a
   "Screen".  Implementationally, it can sometimes get confusing:
   under X, multiple devices on a single console are different
   "Display" connections to what is in reality the same Display on
   the same server.  Furthermore, in the X model input comes from the
   device and not from the console.  This causes no confusion because
   events are basically always tagged to a particular X window (i.e.
   frame), which exists on only one screen; therefore the event won't
   be reported multiple times even if there are multiple devices on
   the same physical display.

   This is an implementation detail specific to X consoles (e.g. under
   Windows, this could be different, and input would come directly from
   the console).
*/

/* GCC does not like forward enum declaration. This needs to be
   defined here. What a disgust! */

enum console_variant
{
  dead_console,
  tty_console,
  gtk_console,
  x_console,
  mswindows_console,
  msprinter_console,
  stream_console
};

enum device_metrics
{
  DM_color_default, DM_color_select, DM_color_balloon, DM_color_3d_face,
  DM_color_3d_light, DM_color_3d_dark, DM_color_menu, DM_color_menu_highlight,
  DM_color_menu_button, DM_color_menu_disabled, DM_color_toolbar,
  DM_color_scrollbar, DM_color_desktop, DM_color_workspace, DM_font_default,
  DM_font_menubar, DM_font_dialog, DM_size_cursor, DM_size_scrollbar,
  DM_size_menu, DM_size_toolbar, DM_size_toolbar_button,
  DM_size_toolbar_border, DM_size_icon, DM_size_icon_small, DM_size_device,
  DM_size_workspace, DM_offset_workspace, DM_size_device_mm, DM_device_dpi,
  DM_num_bit_planes, DM_num_color_cells, DM_num_screens, DM_mouse_buttons,
  DM_swap_buttons, DM_show_sounds, DM_slow_device, DM_security,
  DM_backing_store, DM_save_under
};

struct console;

DECLARE_LISP_OBJECT (console, struct console);
#define XCONSOLE(x) XRECORD (x, console, struct console)
#define wrap_console(p) wrap_record (p, console)
#define CONSOLEP(x) RECORDP (x, console)
#define CHECK_CONSOLE(x) CHECK_RECORD (x, console)
#define CONCHECK_CONSOLE(x) CONCHECK_RECORD (x, console)

/* Basic properties available to non-privileged users; redefined in
   console-impl.h */

struct console_methods;

int console_live_p (struct console *c);
Lisp_Object console_device_list (struct console *c);

#define CONSOLE_LIVE_P(c) console_live_p (c)
#define CONSOLE_DEVICE_LIST(c) console_device_list (c)

#define CHECK_LIVE_CONSOLE(x) do {			\
  CHECK_CONSOLE (x);					\
  if (! CONSOLE_LIVE_P (XCONSOLE (x)))			\
    dead_wrong_type_argument (Qconsole_live_p, (x));	\
} while (0)
#define CONCHECK_LIVE_CONSOLE(x) do {			\
  CONCHECK_CONSOLE (x);					\
  if (! CONSOLE_LIVE_P (XCONSOLE (x)))			\
    x = wrong_type_argument (Qconsole_live_p, (x));	\
} while (0)

#define CDFW_CONSOLE(obj)				\
   ((WINDOWP  (obj) && WINDOW_LIVE_P (XWINDOW(obj))) ? WINDOW_CONSOLE (XWINDOW (obj))	\
 : ((FRAMEP   (obj) && FRAME_LIVE_P (XFRAME (obj)))  ?  FRAME_CONSOLE (XFRAME  (obj))	\
 : ((DEVICEP  (obj) && DEVICE_LIVE_P (XDEVICE (obj))) ? DEVICE_CONSOLE (XDEVICE (obj))	\
 : ((CONSOLEP (obj) && CONSOLE_LIVE_P (XCONSOLE (obj))) ? obj				\
 : Qnil))))

#define CONSOLE_LOOP(concons) LIST_LOOP (concons, Vconsole_list)
#define CONSOLE_DEVICE_LOOP(devcons, con) \
  LIST_LOOP (devcons, CONSOLE_DEVICE_LIST (con))

EXFUN (Fconsole_disable_input, 1);
EXFUN (Fdelete_console, 2);
EXFUN (Fselect_console, 1);
EXFUN (Fselected_console, 0);

extern Lisp_Object Qcreate_console_hook, Qdelete_console_hook;
extern Lisp_Object Vconsole_defaults, Vconsole_type_list, Vselected_console;

int valid_console_type_p (Lisp_Object type);

Lisp_Object create_console (Lisp_Object name, Lisp_Object type,
			    Lisp_Object connection, Lisp_Object props);
void select_console_1 (Lisp_Object);
struct console *decode_console (Lisp_Object);
void add_entry_to_console_type_list (Lisp_Object symbol,
				     struct console_methods *type);
struct console_methods *decode_console_type (Lisp_Object type,
					     Error_Behavior errb);

enum console_variant get_console_variant (Lisp_Object type);

void delete_console_internal (struct console *con, int force,
			      int from_kill_emacs, int from_io_error);
void io_error_delete_console (Lisp_Object console);
void set_console_last_nonminibuf_frame (struct console *con,
					Lisp_Object frame);
void stuff_buffered_input (Lisp_Object);

#endif /* INCLUDED_console_h_ */