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.

/* TTY frame functions.
   Copyright (C) 1995, 1997  Free Software Foundation, Inc.
   Copyright (C) 1995, 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.
   Multi-frame support added by Hrvoje Niksic. */

#include <config.h>
#include "lisp.h"

#include "device-impl.h"
#include "events.h"
#include "frame-impl.h"

#include "console-tty-impl.h"


/* Default properties to use when creating frames.  */
Lisp_Object Vdefault_tty_frame_plist;

Lisp_Object Qframe_number, Qmake_frame_after_init_entry_point;

static void tty_raise_frame (struct frame *);


static void
tty_init_frame_1 (struct frame *f, Lisp_Object UNUSED (props),
		  int frame_name_is_defaulted)
{
  struct device *d = XDEVICE (FRAME_DEVICE (f));
  struct console *c = XCONSOLE (DEVICE_CONSOLE (d));

  ++CONSOLE_TTY_DATA (c)->frame_count;
  f->order_count = CONSOLE_TTY_DATA (c)->frame_count;
  f->height = CONSOLE_TTY_DATA (c)->height;
  f->width = CONSOLE_TTY_DATA (c)->width;
  if (frame_name_is_defaulted)
    f->name = emacs_sprintf_string ("F%d", f->order_count);
}

static void
tty_init_frame_3 (struct frame *f)
{
  tty_raise_frame (f);
}

static void
tty_select_frame_if_unhidden (Lisp_Object frame)
{
  if (FRAME_REPAINT_P (XFRAME (frame)))
    select_frame_1 (frame);
}

static void
tty_schedule_frame_select (struct frame *f)
{
  Lisp_Object frame = wrap_frame (f);

  enqueue_magic_eval_event (tty_select_frame_if_unhidden, frame);
}

static void
tty_after_init_frame (struct frame *f, int UNUSED (first_on_device),
		      int first_on_console)
{
  if (first_on_console)
    call1 (Qmake_frame_after_init_entry_point, FRAME_CONSOLE (f));
}

/* Change from withdrawn state to mapped state. */
static void
tty_make_frame_visible (struct frame *f)
{
  if (!FRAME_VISIBLE_P (f))
    {
      f->visible = -1;
    }
}

/* Change from mapped state to withdrawn state. */
static void
tty_make_frame_invisible (struct frame *f)
{
  f->visible = 0;
}

static void
tty_make_frame_hidden (struct frame *f)
{
  f->visible = -1;
}

static void
tty_make_frame_unhidden (struct frame *f)
{
  if (!FRAME_REPAINT_P (f))
    {
      SET_FRAME_CLEAR (f);
      f->visible = 1;
    }
}

static int
tty_frame_visible_p (struct frame *f)
{
  return FRAME_VISIBLE_P (f);
}

static void
tty_raise_frame_no_select (struct frame *f)
{
  LIST_LOOP_2 (frame, DEVICE_FRAME_LIST (XDEVICE (FRAME_DEVICE (f))))
    {
      struct frame *o = XFRAME (frame);
      if (o != f && FRAME_REPAINT_P (o))
	{
	   tty_make_frame_hidden (o);
	   break;
	}
    }
  tty_make_frame_unhidden (f);
}

static void
tty_raise_frame (struct frame *f)
{
  tty_raise_frame_no_select (f);
  tty_schedule_frame_select (f);
}

static void
tty_lower_frame (struct frame *f)
{
  Lisp_Object frame_list = DEVICE_FRAME_LIST (XDEVICE (FRAME_DEVICE (f)));
  Lisp_Object tail, new_;

  if (!FRAME_REPAINT_P (f))
    return;

  LIST_LOOP (tail, frame_list)
    {
      if (f == XFRAME (XCAR (tail)))
	break;
    }

  /* To lower this frame, another frame has to be raised.  Return if
     there is no other frame. */
  if (NILP (tail) && EQ (frame_list, tail))
    return;

  tty_make_frame_hidden (f);
  if (CONSP (XCDR (tail)))
    new_ = XCAR (XCDR (tail));
  else
    new_ = XCAR (frame_list);
  tty_make_frame_unhidden (XFRAME (new_));
  tty_schedule_frame_select (XFRAME (new_));
}

static void
tty_delete_frame (struct frame *f)
{
  struct device *d = XDEVICE (FRAME_DEVICE (f));

  if (!NILP (DEVICE_SELECTED_FRAME (d)))
    tty_raise_frame (XFRAME (DEVICE_SELECTED_FRAME (d)));
}

static Lisp_Object
tty_frame_property (struct frame *f, Lisp_Object property)
{
  if (EQ (Qframe_number, property))
    return make_fixnum (f->order_count);

  return Qunbound;
}

static int
tty_internal_frame_property_p (struct frame *UNUSED (f), Lisp_Object property)
{
  return EQ (property, Qframe_number);
}

static Lisp_Object
tty_frame_properties (struct frame *f)
{
  Lisp_Object props = Qnil;

  props = cons3 (Qframe_number, make_fixnum (f->order_count), props);

  return props;
}

/************************************************************************/
/*			      initialization				*/
/************************************************************************/

void
console_type_create_frame_tty (void)
{
  CONSOLE_HAS_METHOD (tty, init_frame_1);
  CONSOLE_HAS_METHOD (tty, init_frame_3);
  CONSOLE_HAS_METHOD (tty, after_init_frame);
  CONSOLE_HAS_METHOD (tty, make_frame_visible);
  CONSOLE_HAS_METHOD (tty, make_frame_invisible);
  CONSOLE_HAS_METHOD (tty, frame_visible_p);
  CONSOLE_HAS_METHOD (tty, raise_frame);
  CONSOLE_HAS_METHOD (tty, lower_frame);
  CONSOLE_HAS_METHOD (tty, delete_frame);
  CONSOLE_HAS_METHOD (tty, frame_property);
  CONSOLE_HAS_METHOD (tty, internal_frame_property_p);
  CONSOLE_HAS_METHOD (tty, frame_properties);
}

void
syms_of_frame_tty (void)
{
  DEFSYMBOL (Qframe_number);
  DEFSYMBOL (Qmake_frame_after_init_entry_point);
}

void
vars_of_frame_tty (void)
{
  DEFVAR_LISP ("default-tty-frame-plist", &Vdefault_tty_frame_plist /*
Plist of default frame-creation properties for tty frames.
These are in addition to and override what is specified in
`default-frame-plist', but are overridden by the arguments to the
particular call to `make-frame'.
*/ );
  Vdefault_tty_frame_plist = Qnil;

  tty_console_methods->device_specific_frame_props =
    &Vdefault_tty_frame_plist;

  /* Tty frames are now supported.  Advertise a feature to indicate this. */
  Fprovide (intern ("tty-frames"));
}