annotate lisp/cmdloop.el @ 1314:15a91d7ae2d1

[xemacs-hg @ 2003-02-20 08:16:21 by ben] check in makefile fixes et al Makefile.in.in: Major surgery. Move all stuff related to building anything in the src/ directory into src/. Simplify the dependencies -- everything in src/ is dependent on the single entry `src' in MAKE_SUBDIRS. Remove weirdo targets like `all-elc[s]', dump-elc[s], etc. mule/mule-msw-init.el: Removed. Delete this file. mule/mule-win32-init.el: New file, with stuff from mule-msw-init.el -- not just for MS Windows native, boys and girls! bytecomp.el: Change code inserted to catch trying to load a Mule-only .elc file in a non-Mule XEmacs. Formerly you got the rather cryptic "The required feature `mule' cannot be provided". Now you get "Loading this file requires Mule support". finder.el: Remove dependency on which directory this function is invoked from. update-elc.el: Don't mess around with ../src/BYTECOMPILE_CHANGE. Now that Makefile.in.in and xemacs.mak are in sync, both of them use NEEDTODUMP and the other one isn't used. dumped-lisp.el: Rewrite in terms of `list' and `nconc' instead of assemble-list, so we can have arbitrary forms, not just `when-feature'. very-early-lisp.el: Nuke this file. finder-inf.el, packages.el, update-elc.el, update-elc-2.el, loadup.el, make-docfile.el: Eliminate references to very-early-lisp. msw-glyphs.el: Comment clarification. xemacs.mak: Add macros DO_TEMACS, DO_XEMACS, and a few others; this macro section is now completely in sync with src/Makefile.in.in. Copy check-features, load-shadows, and rebuilding finder-inf.el from src/Makefile.in.in. The main build/dump/recompile process is now synchronized with src/Makefile.in.in. Change `WARNING' to `NOTE' and `error checking' to `error-checking' TO avoid tripping faux warnings and errors in the VC++ IDE. Makefile.in.in: Major surgery. Move all stuff related to building anything in the src/ directory from top-level Makefile.in.in to here. Simplify the dependencies. Rearrange into logical subsections. Synchronize the main compile/dump/build-elcs section with xemacs.mak, which is already clean and in good working order. Remove weirdo targets like `all-elc[s]', dump-elc[s], etc. Add additional levels of macros \(e.g. DO_TEMACS, DO_XEMACS, TEMACS_BATCH, XEMACS_BATCH, XEMACS_BATCH_PACKAGES) to factor out duplicated stuff. Clean up handling of "HEAP_IN_DATA" (Cygwin) so it doesn't need to ignore the return value from dumping. Add .NO_PARALLEL since various aspects of building and dumping must be serialized but do not always have dependencies between them (this is impossible in some cases). Everything related to src/ now gets built in one pass in this directory by just running `make' (except the Makefiles themselves and config.h, paths.h, Emacs.ad.h, and other generated .h files). console.c: Update list of possibly valid console types. emacs.c: Rationalize the specifying and handling of the type of the first frame. This was originally prompted by a workspace in which I got GTK to compile under C++ and in the process fixed it so it could coexist with X in the same build -- hence, a combined TTY/X/MS-Windows/GTK build is now possible under Cygwin. (However, you can't simultaneously *display* more than one kind of device connection -- but getting that to work is not that difficult. Perhaps a project for a bored grad student. I (ben) would do it but don't see the use.) To make sense of this, I added new switches that can be used to specifically indicate the window system: -x [aka --use-x], -tty \[aka --use-tty], -msw [aka --use-ms-windows], -gtk [aka --use-gtk], and -gnome [aka --use-gnome, same as --use-gtk]. -nw continues as an alias for -tty. When none have been given, XEmacs checks for other parameters implying particular device types (-t -> tty, -display -> x [or should it have same treatment as DISPLAY below?]), and has ad-hoc logic afterwards: if env var DISPLAY is set, use x (or gtk? perhaps should check whether gnome is running), else MS Windows if it exsits, else TTY if it exists, else stream, and you must be running in batch mode. This also fixes an existing bug whereby compiling with no x, no mswin, no tty, when running non- interactively (e.g. to dump) I get "sorry, must have TTY support". emacs.c: Turn on Vstack_trace_on_error so that errors are debuggable even when occurring extremely early in reinitialization. emacs.c: Try to make sure that the user can see message output under Windows (i.e. it doesn't just disappear right away) regardless of when it occurs, e.g. in the middle of creating the first frame. emacs.c: Define new function `emacs-run-status', indicating whether XEmacs is noninteractive or interactive, whether raw, post-dump/pdump-load or run-temacs, whether we are dumping, whether pdump is in effect. event-stream.c: It's "mommas are fat", not "momas are fat". Fix other typo. event-stream.c: Conditionalize in_menu_callback check on HAVE_MENUBARS, because it won't exist on w/o menubar support, lisp.h: More hackery on RETURN_NOT_REACHED. Cygwin v3.2 DOES complain here if RETURN_NOT_REACHED() is blank, as it is for GCC 2.5+. So make it blank only for GCC 2.5 through 2.999999999999999. Declare Vstack_trace_on_error. profile.c: Need to include "profile.h" to fix warnings. sheap.c: Don't fatal() when need to rerun Make, just stderr_out() and exit(0). That way we can distinguish between a dumping failing expectedly (due to lack of stack space, triggering another dump) and unexpectedly, in which case, we want to stop building. (or go on, if -K is given) syntax.c, syntax.h: Use ints where they belong, and enum syntaxcode's where they belong, and fix warnings thereby. syntax.h: Fix crash caused by an edge condition in the syntax-cache macros. text.h: Spacing fixes. xmotif.h: New file, to get around shadowing warnings. EmacsManager.c, event-Xt.c, glyphs-x.c, gui-x.c, input-method-motif.c, xmmanagerp.h, xmprimitivep.h: Include xmotif.h. alloc.c: Conditionalize in_malloc on ERROR_CHECK_MALLOC. config.h.in, file-coding.h, fileio.c, getloadavg.c, select-x.c, signal.c, sysdep.c, sysfile.h, systime.h, text.c, unicode.c: Eliminate HAVE_WIN32_CODING_SYSTEMS, use WIN32_ANY instead. Replace defined (WIN32_NATIVE) || defined (CYGWIN) with WIN32_ANY. lisp.h: More futile attempts to walk and chew gum at the same time when dealing with subr's that don't return.
author ben
date Thu, 20 Feb 2003 08:16:21 +0000
parents 37bdd24225ef
children 1b0339b048ce
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1 ;;; cmdloop.el --- support functions for the top-level command loop.
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2
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3 ;; Copyright (C) 1992-4, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 2001, 2002 Ben Wing.
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5
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6 ;; Author: Richard Mlynarik
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7 ;; Date: 8-Jul-92
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8 ;; Maintainer: XEmacs Development Team
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9 ;; Keywords: internal, dumped
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify it
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14 ;; under the terms of the GNU General Public License as published by
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15 ;; the Free Software Foundation; either version 2, or (at your option)
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16 ;; any later version.
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17
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18 ;; XEmacs is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with XEmacs; see the file COPYING. If not, write to the
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25 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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26 ;; Boston, MA 02111-1307, USA.
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27
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28 ;;; Synched up with: FSF 19.30. (Some of the stuff below is in FSF's subr.el.)
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29
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30 ;;; Commentary:
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31
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32 ;; This file is dumped with XEmacs.
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33
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34 ;;; Code:
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35
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36 (defun recursion-depth ()
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37 "Return the current depth in recursive edits."
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38 (+ command-loop-level (minibuffer-depth)))
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39
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40 (defun top-level ()
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41 "Exit all recursive editing levels."
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42 (interactive)
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43 (throw 'top-level nil))
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44
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45 (defun exit-recursive-edit ()
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46 "Exit from the innermost recursive edit or minibuffer."
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47 (interactive)
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48 (if (> (recursion-depth) 0)
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49 (throw 'exit nil))
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50 (error "No recursive edit is in progress"))
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51
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52 (defun abort-recursive-edit ()
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53 "Abort the command that requested this recursive edit or minibuffer input."
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54 (interactive)
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55 (if (> (recursion-depth) 0)
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56 (throw 'exit t))
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57 (error "No recursive edit is in progress"))
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58
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59 ;; (defun keyboard-quit ()
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60 ;; "Signal a `quit' condition."
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61 ;; (interactive)
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62 ;; (deactivate-mark)
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63 ;; (signal 'quit nil))
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64
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65 ;; moved here from pending-del.
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66 (defun keyboard-quit ()
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67 "Signal a `quit' condition.
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68 If this character is typed while lisp code is executing, it will be treated
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69 as an interrupt.
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70 If this character is typed at top-level, this simply beeps.
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71 If `zmacs-regions' is true, and the zmacs region is active in this buffer,
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72 then this key deactivates the region without beeping or signalling."
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73 (interactive)
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74 (if (and (region-active-p)
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75 (eq (current-buffer) (zmacs-region-buffer)))
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76 ;; pseudo-zmacs compatibility: don't beep if this ^G is simply
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77 ;; deactivating the region. If it is inactive, beep.
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78 nil
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79 (signal 'quit nil)))
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80
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81 (defvar buffer-quit-function nil
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82 "Function to call to \"quit\" the current buffer, or nil if none.
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83 \\[keyboard-escape-quit] calls this function when its more local actions
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84 \(such as cancelling a prefix argument, minibuffer or region) do not apply.")
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85
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86 (defun keyboard-escape-quit ()
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87 "Exit the current \"mode\" (in a generalized sense of the word).
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88 This command can exit an interactive command such as `query-replace',
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89 can clear out a prefix argument or a region,
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90 can get out of the minibuffer or other recursive edit,
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91 cancel the use of the current buffer (for special-purpose buffers),
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92 or go back to just one window (by deleting all but the selected window)."
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93 (interactive)
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94 (cond ((eq last-command 'mode-exited) nil)
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95 ((> (minibuffer-depth) 0)
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96 (abort-recursive-edit))
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97 (current-prefix-arg
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98 nil)
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99 ((region-active-p)
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100 (zmacs-deactivate-region))
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101 ((> (recursion-depth) 0)
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102 (exit-recursive-edit))
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103 (buffer-quit-function
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104 (funcall buffer-quit-function))
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105 ((not (one-window-p t))
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106 (delete-other-windows))
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107 ((string-match "^ \\*" (buffer-name (current-buffer)))
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108 (bury-buffer))))
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109
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110 ;; `cancel-mode-internal' is a function of a misc-user event, which is
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111 ;; queued when window system directs XEmacs frame to cancel any modal
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112 ;; behavior it exposes, like mouse pointer grabbing.
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113 ;;
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114 ;; This function does nothing at the top level, but the code which
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115 ;; runs modal event loops, such as selection drag loop in `mouse-track',
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116 ;; check if misc-user function symbol is `cancel-mode-internal', and
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117 ;; takes necessary cleanup actions.
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118 (defun cancel-mode-internal (object)
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119 (setq zmacs-region-stays t))
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120
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121 ;; Someone wrote: "This should really be a ring of last errors."
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122 ;;
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123 ;; But why bother? This stuff is not all that necessary now that we
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124 ;; have message log, anyway.
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125 (defvar last-error nil
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126 "Object describing the last signaled error.")
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127
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128 (defcustom errors-deactivate-region nil
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129 "*Non-nil means that errors will cause the region to be deactivated."
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130 :type 'boolean
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131 :group 'editing-basics)
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132
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133 (defun command-error (error-object)
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134 ;; if you want a backtrace before exiting, set stack-trace-on-error.
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135 (let* ((inhibit-quit t)
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136 (debug-on-error nil)
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137 (etype (car-safe error-object)))
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138 (setq quit-flag nil)
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139 (setq standard-output t)
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140 (setq standard-input t)
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141 (setq executing-kbd-macro nil)
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142 (and errors-deactivate-region
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143 (zmacs-deactivate-region))
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144 (discard-input)
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145
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146 (setq last-error error-object)
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147
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148 (message nil)
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149 (ding nil (cond ((eq etype 'undefined-keystroke-sequence)
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150 (if (and (vectorp (nth 1 error-object))
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151 (/= 0 (length (nth 1 error-object)))
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152 (button-event-p (aref (nth 1 error-object) 0)))
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153 'undefined-click
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154 'undefined-key))
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155 ((eq etype 'quit)
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156 'quit)
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157 ((memq etype '(end-of-buffer beginning-of-buffer))
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158 'buffer-bound)
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159 ((eq etype 'buffer-read-only)
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160 'read-only)
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161 (t 'command-error)))
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162 (display-error error-object t)
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163
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164 (if (noninteractive)
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165 (progn
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166 (message "%s exiting.\n" emacs-program-name)
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167 (kill-emacs -1)))
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168 t))
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169
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170 (defun describe-last-error ()
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171 "Redisplay the last error-message. See the variable `last-error'."
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172 (interactive)
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173 (if last-error
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174 (with-displaying-help-buffer
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175 (lambda ()
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176 (princ "Last error was:\n" standard-output)
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177 (display-error last-error standard-output)))
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178 (message "No error yet")))
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179
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180
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181 ;;#### Must be done later in the loadup sequence
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182 ;(define-key (symbol-function 'help-command) "e" 'describe-last-error)
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183
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184
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185 (defun truncate-command-history-for-gc ()
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186 (let ((tail (nthcdr 30 command-history)))
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187 (if tail (setcdr tail nil)))
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188 (let ((tail (nthcdr 30 values)))
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189 (if tail (setcdr tail nil)))
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190 )
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191
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192 (add-hook 'pre-gc-hook 'truncate-command-history-for-gc)
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193
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194
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195 ;;;; Object-oriented programming at its finest
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196
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197 ;; Now in src/print.c; used by Ferror_message_string and others
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198 ;(defun display-error (error-object stream) ;(defgeneric report-condition ...)
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199 ; "Display `error-object' on `stream' in a user-friendly way."
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200 ; (funcall (or (let ((type (car-safe error-object)))
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201 ; (catch 'error
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202 ; (and (consp error-object)
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203 ; (symbolp type)
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204 ; ;;(stringp (get type 'error-message))
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205 ; (consp (get type 'error-conditions))
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206 ; (let ((tail (cdr error-object)))
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207 ; (while (not (null tail))
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208 ; (if (consp tail)
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209 ; (setq tail (cdr tail))
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210 ; (throw 'error nil)))
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211 ; t)
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212 ; ;; (check-type condition condition)
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213 ; (get type 'error-conditions)
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214 ; ;; Search class hierarchy
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215 ; (let ((tail (get type 'error-conditions)))
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216 ; (while (not (null tail))
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217 ; (cond ((not (and (consp tail)
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218 ; (symbolp (car tail))))
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219 ; (throw 'error nil))
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220 ; ((get (car tail) 'display-error)
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221 ; (throw 'error (get (car tail)
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222 ; 'display-error)))
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223 ; (t
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224 ; (setq tail (cdr tail)))))
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225 ; ;; Default method
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226 ; #'(lambda (error-object stream)
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227 ; (let ((type (car error-object))
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228 ; (tail (cdr error-object))
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229 ; (first t)
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230 ; (print-message-label 'error))
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231 ; (if (eq type 'error)
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232 ; (progn (princ (car tail) stream)
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233 ; (setq tail (cdr tail)))
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234 ; (princ (or (gettext (get type 'error-message)) type)
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235 ; stream))
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236 ; (while tail
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237 ; (princ (if first ": " ", ") stream)
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238 ; (prin1 (car tail) stream)
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239 ; (setq tail (cdr tail)
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240 ; first nil))))))))
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241 ; #'(lambda (error-object stream)
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242 ; (princ (gettext "Peculiar error ") stream)
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243 ; (prin1 error-object stream)))
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244 ; error-object stream))
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245
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246 (put 'file-error 'display-error
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247 #'(lambda (error-object stream)
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248 (let ((tail (cdr error-object))
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249 (first t))
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250 (princ (car tail) stream)
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251 (while (setq tail (cdr tail))
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252 (princ (if first ": " ", ") stream)
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253 (princ (car tail) stream)
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254 (setq first nil)))))
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255
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256 (put 'undefined-keystroke-sequence 'display-error
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257 #'(lambda (error-object stream)
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258 (princ (key-description (car (cdr error-object))) stream)
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259 ;; #### I18N3: doesn't localize properly.
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260 (princ (gettext " not defined.") stream) ; doo dah, doo dah.
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261 ))
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262
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263
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264 (defcustom teach-extended-commands-p t
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265 "*If true, then `\\[execute-extended-command]' will teach you keybindings.
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266 Any time you execute a command with \\[execute-extended-command] which has a
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267 shorter keybinding, you will be shown the alternate binding before the
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268 command executes. There is a short pause after displaying the binding,
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269 before executing it; the length can be controlled by
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270 `teach-extended-commands-timeout'."
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271 :type 'boolean
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272 :group 'keyboard)
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273
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274 (defcustom teach-extended-commands-timeout 4
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275 "*How long to pause after displaying a keybinding before executing.
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276 The value is measured in seconds. This only applies if
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277 `teach-extended-commands-p' is true."
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278 :type 'number
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279 :group 'keyboard)
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280
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281 ;That damn RMS went off and implemented something differently, after
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282 ;we had already implemented it. We can't support both properly until
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283 ;we have Lisp magic variables.
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284 ;(defvar suggest-key-bindings t
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285 ; "*FSFmacs equivalent of `teach-extended-commands-*'.
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286 ;Provided for compatibility only.
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287 ;Non-nil means show the equivalent key-binding when M-x command has one.
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288 ;The value can be a length of time to show the message for.
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289 ;If the value is non-nil and not a number, we wait 2 seconds.")
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290 ;
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291 ;(make-obsolete-variable 'suggest-key-bindings 'teach-extended-commands-p)
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292
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293 (defun execute-extended-command (prefix-arg)
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294 "Read a command name from the minibuffer using 'completing-read'.
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295 Then call the specified command using 'command-execute' and return its
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296 return value. If the command asks for a prefix argument, supply the
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297 value of the current raw prefix argument, or the value of PREFIX-ARG
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298 when called from Lisp."
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299 (interactive "P")
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300 ;; Note: This doesn't hack "this-command-keys"
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301 (let ((prefix-arg prefix-arg))
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302 (setq this-command (read-command
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303 ;; Note: this has the hard-wired
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304 ;; "C-u" and "M-x" string bug in common
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305 ;; with all Emacs's.
428
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306 ;; (i.e. it prints C-u and M-x regardless of
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307 ;; whether some other keys were actually bound
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308 ;; to `execute-extended-command' and
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309 ;; `universal-argument'.
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310 (cond ((eq prefix-arg '-)
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311 "- M-x ")
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cvs
parents:
diff changeset
312 ((equal prefix-arg '(4))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
313 "C-u M-x ")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
314 ((integerp prefix-arg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
315 (format "%d M-x " prefix-arg))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
316 ((and (consp prefix-arg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
317 (integerp (car prefix-arg)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
318 (format "%d M-x " (car prefix-arg)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
319 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
320 "M-x ")))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
321
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
322 (if (and teach-extended-commands-p
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
323 (interactive-p))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
324 ;; Remember the keys, run the command, and show the keys (if
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
325 ;; any). The funny variable names are a poor man's guarantee
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
326 ;; that we don't get tripped by this-command doing something
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
327 ;; funny. Quoth our forefathers: "We want lexical scope!"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
328 (let ((_execute_command_keys_ (where-is-internal this-command))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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329 (_execute_command_name_ this-command)) ; the name can change
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
330 (command-execute this-command t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
331 (when _execute_command_keys_
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
332 ;; Normally the region is adjusted in post_command_hook;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
333 ;; however, it is not called until after we finish. It
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
334 ;; looks ugly for the region to get updated after the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
335 ;; delays, so we do it now. The code below is a Lispified
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
336 ;; copy of code in event-stream.c:post_command_hook().
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
337 (if (and (not zmacs-region-stays)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
338 (or (not (eq (selected-window) (minibuffer-window)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
339 (eq (zmacs-region-buffer) (current-buffer))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
340 (zmacs-deactivate-region)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
341 (zmacs-update-region))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
342 ;; Wait for a while, so the user can see a message printed,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
343 ;; if any.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
344 (when (sit-for 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
345 (display-message
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
346 'no-log
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
347 (format (if (cdr _execute_command_keys_)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
348 "Command `%s' is bound to keys: %s"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
349 "Command `%s' is bound to key: %s")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
350 _execute_command_name_
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
351 (sorted-key-descriptions _execute_command_keys_)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
352 (sit-for teach-extended-commands-timeout)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
353 (clear-message 'no-log))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
354 ;; Else, just run the command.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
355 (command-execute this-command t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
356
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
357
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
358 ;;; C code calls this; the underscores in the variable names are to avoid
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
359 ;;; cluttering the specbind namespace (lexical scope! lexical scope!)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
360 ;;; Putting this in Lisp instead of C slows kbd macros by 50%.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
361 ;(defun command-execute (_command &optional _record-flag)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
362 ; "Execute CMD as an editor command.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
363 ;CMD must be a symbol that satisfies the `commandp' predicate.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
364 ;Optional second arg RECORD-FLAG non-nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
365 ;means unconditionally put this command in `command-history'.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
366 ;Otherwise, that is done only if an arg is read using the minibuffer."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
367 ; (let ((_prefix prefix-arg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
368 ; (_cmd (indirect-function _command)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
369 ; (setq prefix-arg nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
370 ; this-command _command
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
371 ; current-prefix-arg _prefix
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
372 ; zmacs-region-stays nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
373 ; ;; #### debug_on_next_call = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
374 ; (cond ((and (symbolp _command)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
375 ; (get _command 'disabled))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
376 ; (run-hooks disabled-command-hook))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
377 ; ((or (stringp _cmd) (vectorp _cmd))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
378 ; ;; If requested, place the macro in the command history.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
379 ; ;; For other sorts of commands, call-interactively takes
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
380 ; ;; care of this.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
381 ; (if _record-flag
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
382 ; (setq command-history
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
383 ; (cons (list 'execute-kbd-macro _cmd _prefix)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
384 ; command-history)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
385 ; (execute-kbd-macro _cmd _prefix))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
386 ; (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
387 ; (call-interactively _command _record-flag)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
388
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
389 (defun y-or-n-p-minibuf (prompt)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
390 "Ask user a \"y or n\" question. Return t if answer is \"y\".
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
391 Takes one argument, which is the string to display to ask the question.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
392 It should end in a space; `y-or-n-p' adds `(y or n) ' to it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
393 No confirmation of the answer is requested; a single character is enough.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
394 Also accepts Space to mean yes, or Delete to mean no."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
395 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
396 (let* ((pre "")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
397 (yn (gettext "(y or n) "))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
398 ;; we need to translate the prompt ourselves because of the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
399 ;; strange way we handle it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
400 (prompt (gettext prompt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
401 event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
402 (while (stringp yn)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
403 (if (let ((cursor-in-echo-area t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
404 (inhibit-quit t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
405 (message "%s%s%s" pre prompt yn)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
406 (setq event (next-command-event event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
407 (condition-case nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
408 (prog1
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
409 (or quit-flag (eq 'keyboard-quit (key-binding event)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410 (setq quit-flag nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
411 (wrong-type-argument t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
413 (message "%s%s%s%s" pre prompt yn (single-key-description event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
414 (setq quit-flag nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
415 (signal 'quit '())))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
416 (let* ((keys (events-to-keys (vector event)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
417 (def (lookup-key query-replace-map keys)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
418 (cond ((eq def 'skip)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
419 (message "%s%sNo" prompt yn)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
420 (setq yn nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
421 ((eq def 'act)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
422 (message "%s%sYes" prompt yn)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
423 (setq yn t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
424 ((eq def 'recenter)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
425 (recenter))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
426 ((or (eq def 'quit) (eq def 'exit-prefix))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
427 (signal 'quit '()))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
428 ((button-release-event-p event) ; ignore them
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
429 nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
430 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
431 (message "%s%s%s%s" pre prompt yn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
432 (single-key-description event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
433 (ding nil 'y-or-n-p)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
434 (discard-input)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
435 (if (= (length pre) 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436 (setq pre (gettext "Please answer y or n. ")))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
437 yn)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
439 (defun yes-or-no-p-minibuf (prompt)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
440 "Ask user a yes-or-no question. Return t if answer is yes.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
441 Takes one argument, which is the string to display to ask the question.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 It should end in a space; `yes-or-no-p' adds `(yes or no) ' to it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
443 The user must confirm the answer with RET,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444 and can edit it until it has been confirmed."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
445 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
446 (let ((p (concat (gettext prompt) (gettext "(yes or no) ")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
447 (ans ""))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448 (while (stringp ans)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
449 (setq ans (downcase (read-string p nil t))) ;no history
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 (cond ((string-equal ans (gettext "yes"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 (setq ans t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 ((string-equal ans (gettext "no"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 (setq ans nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 (ding nil 'yes-or-no-p)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
456 (discard-input)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
457 (message "Please answer yes or no.")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458 (sleep-for 2))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 ans)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
461 (defun yes-or-no-p (prompt)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
462 "Ask user a yes-or-no question. Return t if answer is yes.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
463 The question is asked with a dialog box or the minibuffer, as appropriate.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
464 Takes one argument, which is the string to display to ask the question.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
465 It should end in a space; `yes-or-no-p' adds `(yes or no) ' to it.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
466 The user must confirm the answer with RET,
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
467 and can edit it until it as been confirmed."
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
468 (if (should-use-dialog-box-p)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
469 (yes-or-no-p-dialog-box prompt)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
470 (yes-or-no-p-minibuf prompt)))
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
471
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
472 (defun y-or-n-p (prompt)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
473 "Ask user a \"y or n\" question. Return t if answer is \"y\".
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
474 Takes one argument, which is the string to display to ask the question.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
475 The question is asked with a dialog box or the minibuffer, as appropriate.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
476 It should end in a space; `y-or-n-p' adds `(y or n) ' to it.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
477 No confirmation of the answer is requested; a single character is enough.
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
478 Also accepts Space to mean yes, or Delete to mean no."
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
479 (if (should-use-dialog-box-p)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
480 (yes-or-no-p-dialog-box prompt)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
481 (y-or-n-p-minibuf prompt)))
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482
428
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483
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484
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485 (defun read-char ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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486 "Read a character from the command input (keyboard or macro).
3ecd8885ac67 Import from CVS: tag r21-2-22
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487 If a mouse click or non-ASCII character is detected, an error is
3ecd8885ac67 Import from CVS: tag r21-2-22
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488 signalled. The character typed is returned as an ASCII value. This
3ecd8885ac67 Import from CVS: tag r21-2-22
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489 is most likely the wrong thing for you to be using: consider using
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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490 the `next-command-event' function instead."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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491 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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492 (let ((event (next-command-event)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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493 (or inhibit-quit
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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494 (and (event-matches-key-specifier-p event (quit-char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
495 (signal 'quit nil)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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496 (prog1 (or (event-to-character event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
497 ;; Kludge. If the event we read was a mouse-release,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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498 ;; discard it and read the next one.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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499 (if (button-release-event-p event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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500 (event-to-character (next-command-event event)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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501 (error "Key read has no ASCII equivalent %S" event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
502 ;; this is not necessary, but is marginally more efficient than GC.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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503 (deallocate-event event)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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504
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
505 (defun read-char-exclusive ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
506 "Read a character from the command input (keyboard or macro).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
507 If a mouse click or non-ASCII character is detected, it is discarded.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
508 The character typed is returned as an ASCII value. This is most likely
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
509 the wrong thing for you to be using: consider using the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
510 `next-command-event' function instead."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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511 (let (event ch)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
512 (while (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
513 (setq event (next-command-event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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514 (or inhibit-quit
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
515 (and (event-matches-key-specifier-p event (quit-char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
516 (signal 'quit nil)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
517 (setq ch (event-to-character event))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
518 (deallocate-event event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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519 (null ch)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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520 ch))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
521
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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522 (defun read-quoted-char (&optional prompt)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
523 "Like `read-char', except that if the first character read is an octal
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
524 digit, we read up to two more octal digits and return the character
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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525 represented by the octal number consisting of those digits.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
526 Optional argument PROMPT specifies a string to use to prompt the user."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
527 (let ((count 0) (code 0) done
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
528 (prompt (and prompt (gettext prompt)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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529 char event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
530 (while (and (not done) (< count 3))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
531 (let ((inhibit-quit (zerop count))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
532 ;; Don't let C-h get the help message--only help function keys.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
533 (help-char nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
534 (help-form
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
535 "Type the special character you want to use,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
536 or three octal digits representing its character code."))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
537 (and prompt (display-message 'prompt (format "%s-" prompt)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
538 (setq event (next-command-event)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
539 char (or (event-to-character event nil nil t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
540 (signal 'error
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
541 (list "key read cannot be inserted in a buffer"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
542 event))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
543 (if inhibit-quit (setq quit-flag nil)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
544 (cond ((<= ?0 char ?7)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
545 (setq code (+ (* code 8) (- char ?0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
546 count (1+ count))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
547 (when prompt
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
548 (display-message 'prompt
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
549 (setq prompt (format "%s %c" prompt char)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
550 ((> count 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
551 (setq unread-command-event event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
552 done t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
553 (t (setq code (char-int char)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
554 done t))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
555 (int-char code)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
556 ;; Turn a meta-character into a character with the 0200 bit set.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
557 ; (logior (if (/= (logand code ?\M-\^@) 0) 128 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
558 ; (logand 255 code))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
559 ))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
560
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
561 (defun momentary-string-display (string pos &optional exit-char message)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
562 "Momentarily display STRING in the buffer at POS.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
563 Display remains until next character is typed.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
564 If the char is EXIT-CHAR (optional third arg, default is SPC) it is swallowed;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
565 otherwise it is then available as input (as a command if nothing else).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
566 Display MESSAGE (optional fourth arg) in the echo area.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
567 If MESSAGE is nil, instructions to type EXIT-CHAR are displayed there."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
568 (or exit-char (setq exit-char ?\ ))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
569 (let ((buffer-read-only nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
570 ;; Don't modify the undo list at all.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
571 (buffer-undo-list t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
572 (modified (buffer-modified-p))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
573 (name buffer-file-name)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
574 insert-end)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
575 (unwind-protect
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
576 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
577 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
578 (goto-char pos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
579 ;; defeat file locking... don't try this at home, kids!
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
580 (setq buffer-file-name nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
581 (insert-before-markers (gettext string))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
582 (setq insert-end (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
583 ;; If the message end is off frame, recenter now.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
584 (if (> (window-end) insert-end)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
585 (recenter (/ (window-height) 2)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
586 ;; If that pushed message start off the frame,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
587 ;; scroll to start it at the top of the frame.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
588 (move-to-window-line 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
589 (if (> (point) pos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
590 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
591 (goto-char pos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
592 (recenter 0))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
593 (message (or message (gettext "Type %s to continue editing."))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
594 (single-key-description exit-char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
595 (let ((event (save-excursion (next-command-event))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
596 (or (eq (event-to-character event) exit-char)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
597 (setq unread-command-event event))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
598 (if insert-end
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
599 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
600 (delete-region pos insert-end)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
601 (setq buffer-file-name name)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
602 (set-buffer-modified-p modified))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
603
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
604 ;;; cmdloop.el ends here