annotate lisp/buffer.el @ 613:023b83f4e54b

[xemacs-hg @ 2001-06-10 10:42:16 by ben] ------ signal-code changes ------ data.c, device-tty.c, emacs.c, floatfns.c, linuxplay.c, nas.c, process-unix.c, signal.c, sunplay.c, sysdep.c, syssignal.h: use EMACS_SIGNAL everywhere instead of playing preprocessing games with signal(). s\windowsnt.h, s\mingw32.h, syssignal.h: Remove mswindows signal code from s+m headers and move to syssignal.h as one of the five ways of signal handling, instead of playing preprocessing games. fileio.c, sysdep.c: Rename sys_do_signal to qxe_reliable_signal. signal.c, process-unix.c, profile.c: Create set_timeout_signal(); use instead of just EMACS_SIGNAL to establish a signal handler on a timeout signal; this does special things under Cygwin. nt.c: Eliminate term_ntproc(), which is blank; used as a SIGABRT handler, which was wrong anyway. nt.c, win32.c: Move signal code from nt.c to win32.c, since Cygwin needs it too when dealing with timeout signals. s\cygwin32.h: Define CYGWIN_BROKEN_SIGNALS. ------ other changes ------ s\mingw32.h: Fix problems with NOT_C_CODE being in the wrong place and excluding defines needed when building Makefile.in.in. filelock.c, mule-canna.c, mule-ccl.c, mule-ccl.h, ralloc.c, unexalpha.c, unexapollo.c, unexcw.c, unexelfsgi.c, unexnt.c, unexsni.c, s\aix3-1.h, s\bsd4-1.h, s\bsd4-2.h, s\bsd4-3.h, s\cxux.h, s\cygwin32.h, s\dgux.h, s\dgux5-4r2.h, s\dgux5-4r3.h, s\dgux5-4r4.h, s\ewsux5r4.h, s\gnu.h, s\hpux.h, s\iris3-5.h, s\iris3-6.h, s\irix3-3.h, s\linux.h, s\mingw32.h, s\newsos5.h, s\nextstep.h, s\ptx.h, s\riscix1-1.h, s\riscix1-2.h, s\rtu.h, s\sco4.h, s\sco5.h, s\template.h, s\ultrix.h, s\umax.h, s\umips.h, s\unipl5-0.h, s\unipl5-2.h, s\usg5-0.h, s\usg5-2-2.h, s\usg5-2.h, s\usg5-3.h, s\usg5-4.h, s\windowsnt.h, s\xenix.h: Rename 'GNU Emacs' to XEmacs in the copyright and comments. nas.c: Stylistic cleanup. Avoid preprocessing games with names such as play_sound_file. ------ signal-code changes ------ data.c, device-tty.c, emacs.c, floatfns.c, linuxplay.c, nas.c, process-unix.c, signal.c, sunplay.c, sysdep.c, syssignal.h: use EMACS_SIGNAL everywhere instead of playing preprocessing games with signal(). s\windowsnt.h, s\mingw32.h, syssignal.h: Remove mswindows signal code from s+m headers and move to syssignal.h as one of the five ways of signal handling, instead of playing preprocessing games. fileio.c, sysdep.c: Rename sys_do_signal to qxe_reliable_signal. signal.c, process-unix.c, profile.c: Create set_timeout_signal(); use instead of just EMACS_SIGNAL to establish a signal handler on a timeout signal; this does special things under Cygwin. nt.c: Eliminate term_ntproc(), which is blank; used as a SIGABRT handler, which was wrong anyway. nt.c, win32.c: Move signal code from nt.c to win32.c, since Cygwin needs it too when dealing with timeout signals. s\cygwin32.h: Define CYGWIN_BROKEN_SIGNALS. ------ other changes ------ s\mingw32.h: Fix problems with NOT_C_CODE being in the wrong place and excluding defines needed when building Makefile.in.in. filelock.c, mule-canna.c, mule-ccl.c, mule-ccl.h, ralloc.c, unexalpha.c, unexapollo.c, unexcw.c, unexelfsgi.c, unexnt.c, unexsni.c, s\aix3-1.h, s\bsd4-1.h, s\bsd4-2.h, s\bsd4-3.h, s\cxux.h, s\cygwin32.h, s\dgux.h, s\dgux5-4r2.h, s\dgux5-4r3.h, s\dgux5-4r4.h, s\ewsux5r4.h, s\gnu.h, s\hpux.h, s\iris3-5.h, s\iris3-6.h, s\irix3-3.h, s\linux.h, s\mingw32.h, s\newsos5.h, s\nextstep.h, s\ptx.h, s\riscix1-1.h, s\riscix1-2.h, s\rtu.h, s\sco4.h, s\sco5.h, s\template.h, s\ultrix.h, s\umax.h, s\umips.h, s\unipl5-0.h, s\unipl5-2.h, s\usg5-0.h, s\usg5-2-2.h, s\usg5-2.h, s\usg5-3.h, s\usg5-4.h, s\windowsnt.h, s\xenix.h: Rename 'GNU Emacs' to XEmacs in the copyright and comments. nas.c: Stylistic cleanup. Avoid preprocessing games with names such as play_sound_file. xemacs-faq.texi: Update sections on Windows and MacOS availability. alist.el, apropos.el, autoload.el, bytecomp.el, cl-compat.el, cl-extra.el, cl-macs.el, cl-seq.el, cl.el, cmdloop.el, cus-edit.el, derived.el, gpm.el, itimer.el, lisp-mode.el, shadow.el, version.el, wid-browse.el: Rename 'GNU Emacs' to XEmacs in the copyright. Fix other references to GNU Emacs that should be XEmacs or just Emacs. files.el: Fix warning. simple.el: transpose-line-up/down will now move the region up or down by a line if active. cvtmail.c, fakemail.c, gnuserv.c, gnuserv.h, gnuslib.c, make-msgfile.c, make-path.c, pop.c, pop.h, profile.c, tcp.c: Rename 'GNU Emacs' to XEmacs in the copyright. Fix comments in similar ways. digest-doc.c, sorted-doc.c: Fix program and author name to reflect XEmacs.
author ben
date Sun, 10 Jun 2001 10:42:39 +0000
parents abe6d1db359e
children 627e25731054
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1 ;;; buffer.el --- buffer routines taken from C
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2
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3 ;; Copyright (C) 1985-1989, 1992-1995, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Sun Microsystems.
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5 ;; Copyright (C) 1995, 1996 Ben Wing.
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6
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Keywords: internal, dumped
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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24 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Synched up with: FSF 19.30 buffer.c.
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28
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29 ;;; Commentary:
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30
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31 ;; This file is dumped with XEmacs.
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32
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33 ;;; Code:
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34
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35 (defun switch-to-buffer (bufname &optional norecord)
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36 "Select buffer BUFNAME in the current window.
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37 BUFNAME may be a buffer or a buffer name and is created if it did not exist.
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38 Optional second arg NORECORD non-nil means do not put this buffer at the
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39 front of the list of recently selected ones.
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40
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41 WARNING: This is NOT the way to work on another buffer temporarily
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42 within a Lisp program! Use `set-buffer' instead. That avoids messing with
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43 the window-buffer correspondences."
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44 (interactive "BSwitch to buffer: ")
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45 ;; #ifdef I18N3
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46 ;; #### Doc string should indicate that the buffer name will get
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47 ;; translated.
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48 ;; #endif
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49 (if (eq (minibuffer-window) (selected-window))
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50 (error "Cannot switch buffers in minibuffer window"))
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51 (if (window-dedicated-p (selected-window))
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52 (error "Cannot switch buffers in a dedicated window"))
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53 (let (buf)
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54 (if (null bufname)
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55 (setq buf (other-buffer (current-buffer)))
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56 (setq buf (get-buffer bufname))
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57 (if (null buf)
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58 (progn
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59 (setq buf (get-buffer-create bufname))
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60 (set-buffer-major-mode buf))))
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61 (push-window-configuration)
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62 (set-buffer buf)
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63 (set-window-buffer (last-nonminibuf-window) buf norecord)
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64 buf))
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65
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66 (defun pop-to-buffer (bufname &optional not-this-window-p on-frame)
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67 "Select buffer BUFNAME in some window, preferably a different one.
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68 If BUFNAME is nil, then some other buffer is chosen.
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69 If `pop-up-windows' is non-nil, windows can be split to do this.
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70 If optional second arg NOT-THIS-WINDOW-P is non-nil, insist on finding
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71 another window even if BUFNAME is already visible in the selected window.
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72 If optional third arg is non-nil, it is the frame to pop to this
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73 buffer on.
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74 If `focus-follows-mouse' is non-nil, keyboard focus is left unchanged."
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75 ;; #ifdef I18N3
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76 ;; #### Doc string should indicate that the buffer name will get
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77 ;; translated.
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78 ;; #endif
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79 ;; This is twisted. It is evil to throw the keyboard focus around
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80 ;; willy-nilly if the user wants focus-follows-mouse.
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81 (let ((oldbuf (current-buffer))
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82 buf window frame)
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83 (if (null bufname)
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84 (setq buf (other-buffer (current-buffer)))
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85 (setq buf (get-buffer bufname))
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86 (if (null buf)
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87 (progn
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88 (setq buf (get-buffer-create bufname))
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89 (set-buffer-major-mode buf))))
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90 (push-window-configuration)
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91 (set-buffer buf)
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92 (setq window (display-buffer buf not-this-window-p on-frame))
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93 (setq frame (window-frame window))
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94 ;; if the display-buffer hook decided to show this buffer in another
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95 ;; frame, then select that frame, (unless obeying focus-follows-mouse -sb).
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96 (if (and (not focus-follows-mouse)
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97 (not (eq frame (selected-frame))))
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98 (select-frame frame))
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99 (record-buffer buf)
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100 (if (and focus-follows-mouse
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101 on-frame
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102 (not (eq on-frame (selected-frame))))
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103 (set-buffer oldbuf)
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104 ;; select-window will modify the internal keyboard focus of XEmacs
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105 (select-window window))
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106 buf))
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107
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108 ;;; buffer.el ends here