annotate lisp/lisp-mode.el @ 844:047d37eb70d7

[xemacs-hg @ 2002-05-16 13:30:23 by ben] ui fixes for things that were bothering me bytecode.c, editfns.c, lisp.h, lread.c: Fix save-restriction to use markers rather than pseudo-markers (integers representing the amount of text on either side of the region). That way, all inserts are handled correctly, not just those inside old restriction. Add buffer argument to save_restriction_save(). process.c: Clean up very dirty and kludgy code that outputs into a buffer -- use proper unwind protects, etc. font-lock.c: Do save-restriction/widen around the function -- otherwise, incorrect results will ensue when a buffer has been narrowed before a call to e.g. `buffer-syntactic-context' -- something that happens quite often. fileio.c: Look for a handler for make-temp-name. window.c, winslots.h: Try to solve this annoying problem: have two frames displaying the buffer, in different places; in one, temporarily switch away to another buffer and then back -- and you've lost your position; it's reset to the other one in the other frame. My current solution involves window-level caches of buffers and points (also a cache for window-start); when set-window-buffer is called, it looks to see if the buffer was previously visited in the window, and if so, uses the most recent point at that time. (It's a marker, so it handles changes.) #### Note: It could be argued that doing it on the frame level would be better -- e.g. if you visit a buffer temporarily through a grep, and then go back to that buffer, you presumably want the grep's position rather than some previous position provided everything was in the same frame, even though the grep was in another window in the frame. However, doing it on the frame level fails when you have two windows on the same frame. Perhaps we keep both a window and a frame cache, and use the frame cache if there are no other windows on the frame showing the buffer, else the window's cache? This is probably something to be configurable using a specifier. Suggestions please please please? window.c: Clean up a bit code that deals with the annoyance of window-point vs. point. dialog.el: Function to ask a multiple-choice question, automatically choosing a dialog box or minibuffer representation as necessary. Generalized version of yes-or-no-p, y-or-n-p. files.el: Use get-user-response to ask "yes/no/diff" question when recovering. "diff" means that a diff is displayed between the current file and the autosave. (Converts/deconverts escape-quoted as necessary. No more complaints from you, Mr. Turnbull!) One known problem: when a dialog is used, it's modal, so you can't scroll the diff. Will fix soon. lisp-mode.el: If we're filling a string, don't treat semicolon as a comment, which would give very unfriendly results. Uses `buffer-syntactic-context'. simple.el: all changes back to the beginning. (Useful if you've saved the file in the middle of the changes.) simple.el: Add option kill-word-into-kill-ring, which controls whether words deleted with kill-word, backward-kill-word, etc. are "cut" into the kill ring, or "cleared" into nothingness. (My preference is the latter, by far. I'd almost go so far as suggesting we make it the default, as you can always select a word and then cut it if you want it cut.) menubar-items.el: Add option corresponding to kill-word-into-kill-ring.
author ben
date Thu, 16 May 2002 13:30:58 +0000
parents a5954632b187
children 79c6ff3eef26
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1 ;;; lisp-mode.el --- Lisp mode, and its idiosyncratic commands.
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2
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3 ;; Copyright (C) 1985, 1996, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Tinker Systems.
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5 ;; Copyright (C) 2002 Ben Wing.
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6
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7 ;; Maintainer: FSF
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8 ;; Keywords: lisp, languages, 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 Free
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24 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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25 ;; 02111-1307, USA.
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26
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27 ;;; Synched up with: FSF 19.34 (but starting to diverge).
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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 ;; The base major mode for editing Lisp code (used also for Emacs Lisp).
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34 ;; This mode is documented in the Emacs manual
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35
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36 ;;; Code:
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37
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38 (defgroup lisp nil
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39 "Lisp support, including Emacs Lisp."
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40 :group 'languages
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41 :group 'development)
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42
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43 (defvar lisp-mode-syntax-table nil)
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44 (defvar emacs-lisp-mode-syntax-table nil)
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45 (defvar lisp-mode-abbrev-table nil)
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46
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47 (defun construct-lisp-mode-menu (popup-p emacs-lisp-p)
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48 (flet ((popup-wrap (form)
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49 (if popup-p `(menu-call-at-event ',form) form)))
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50 `(,@(if emacs-lisp-p
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51 `(["%_Byte-Compile This File" ,(popup-wrap
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52 'emacs-lisp-byte-compile)]
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53 ["B%_yte-Compile/Load This File"
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54 ,(popup-wrap 'emacs-lisp-byte-compile-and-load)]
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55 ["Byte-%_Recompile Directory..."
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56 ,(popup-wrap 'byte-recompile-directory)]
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57 "---"))
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58 ["%_Evaluate Region or Defun"
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59 ,(popup-wrap '(if (region-exists-p)
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60 (call-interactively 'eval-region)
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61 (call-interactively 'eval-defun)))]
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62 ["Evaluate %_Whole Buffer" ,(popup-wrap 'eval-current-buffer)]
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63 ["Evaluate Last %_S-expression" ,(popup-wrap 'eval-last-sexp)]
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64 "---"
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65 ["%_Indent Region or Balanced Expression"
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66 ,(popup-wrap '(if (region-exists-p)
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67 (call-interactively 'indent-region)
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68 (call-interactively 'indent-sexp)))]
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69 ["I%_ndent Defun"
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70 ,(popup-wrap '(progn
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71 (beginning-of-defun)
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72 (indent-sexp)))]
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73 "---"
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74 ["%_Comment Out Region" comment-region :active (region-exists-p)]
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75 ["Unc%_omment Region" (comment-region (region-beginning)
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76 (region-end) '(4))
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77 :active (region-exists-p)]
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78 "---"
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79 ,@(if popup-p
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80 '(["%_Find Function"
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81 (find-function (menu-call-at-event '(function-at-point)))
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82 :suffix (let ((fun (menu-call-at-event '(function-at-point))))
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83 (if fun (symbol-name fun) ""))
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84 :active (and (fboundp 'find-function)
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85 (menu-call-at-event '(function-at-point)))]
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86 ["%_Find Variable"
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87 (find-variable (menu-call-at-event '(variable-at-point)))
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88 :suffix (let ((fun (menu-call-at-event '(variable-at-point))))
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89 (if fun (symbol-name fun) ""))
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90 :active (and (fboundp 'find-variable)
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91 (menu-call-at-event '(variable-at-point)))]
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92 ["%_Help on Function"
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93 (describe-function (menu-call-at-event '(function-at-point)))
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94 :suffix (let ((fun (menu-call-at-event '(function-at-point))))
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95 (if fun (symbol-name fun) ""))
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96 :active (and (fboundp 'describe-function)
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97 (menu-call-at-event '(function-at-point)))]
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98 ["%_Help on Variable"
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99 (describe-variable (menu-call-at-event '(variable-at-point)))
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100 :suffix (let ((fun (menu-call-at-event '(variable-at-point))))
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101 (if fun (symbol-name fun) ""))
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102 :active (and (fboundp 'describe-variable)
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103 (menu-call-at-event '(variable-at-point)))])
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104 '(["Find %_Function..." find-function
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105 :active (fboundp 'find-function)]
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106 ["Find %_Variable..." find-variable
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107 :active (fboundp 'find-variable)]
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108 ["%_Help on Function..." describe-function
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109 :active (fboundp 'describe-function)]
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110 ["Hel%_p on Variable..." describe-variable
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111 :active (fboundp 'describe-variable)]))
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112 "---"
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113 ["Instrument This Defun for %_Debugging" ,(popup-wrap 'edebug-defun)]
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114 ["%_Trace Function..." trace-function-background]
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115 ["%_Untrace All Functions" untrace-all
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116 :active (fboundp 'untrace-all)]
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117 "---"
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118 ["Display %_Macro Expansion of Balanced Expression"
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119 ,(popup-wrap 'macroexpand-sexp)]
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120 ["Display Recursive Macro E%_xpansion of Balanced Expression"
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121 ,(popup-wrap 'macroexpand-all-sexp)]
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122 "---"
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123 "Look for debug-on-error under Options->Troubleshooting"
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124 )))
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125
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126 (defvar lisp-interaction-mode-popup-menu
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127 (cons "Lisp-Interaction" (construct-lisp-mode-menu t nil)))
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128
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129 (defvar emacs-lisp-mode-popup-menu
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130 (cons "Emacs-Lisp" (construct-lisp-mode-menu t t)))
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131
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132 ;Don't have a menubar entry in Lisp Interaction mode. Otherwise, the
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133 ;*scratch* buffer has a Lisp menubar item! Very confusing.
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134 ;Jan Vroonhof really wants this, so it's back. --ben
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135 (defvar lisp-interaction-mode-menubar-menu
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136 (cons "%_Lisp" (construct-lisp-mode-menu nil nil)))
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137
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138 (defvar emacs-lisp-mode-menubar-menu
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139 (cons "%_Lisp" (construct-lisp-mode-menu nil t)))
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140
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141 (if (not emacs-lisp-mode-syntax-table)
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142 (let ((i 0))
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143 (setq emacs-lisp-mode-syntax-table (make-syntax-table))
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144 (while (< i ?0)
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145 (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
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146 (setq i (1+ i)))
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147 (setq i (1+ ?9))
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148 (while (< i ?A)
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149 (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
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150 (setq i (1+ i)))
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151 (setq i (1+ ?Z))
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152 (while (< i ?a)
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153 (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
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154 (setq i (1+ i)))
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155 (setq i (1+ ?z))
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156 (while (< i 128)
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157 (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
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158 (setq i (1+ i)))
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159 (modify-syntax-entry ? " " emacs-lisp-mode-syntax-table)
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160 (modify-syntax-entry ?\t " " emacs-lisp-mode-syntax-table)
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161 (modify-syntax-entry ?\f " " emacs-lisp-mode-syntax-table)
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162 (modify-syntax-entry ?\n "> " emacs-lisp-mode-syntax-table)
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163 ;; Give CR the same syntax as newline, for selective-display.
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164 (modify-syntax-entry ?\^m "> " emacs-lisp-mode-syntax-table)
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165 (modify-syntax-entry ?\; "< " emacs-lisp-mode-syntax-table)
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166 (modify-syntax-entry ?` "' " emacs-lisp-mode-syntax-table)
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167 (modify-syntax-entry ?' "' " emacs-lisp-mode-syntax-table)
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168 (modify-syntax-entry ?, "' " emacs-lisp-mode-syntax-table)
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169 ;; Used to be singlequote; changed for flonums.
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170 (modify-syntax-entry ?. "_ " emacs-lisp-mode-syntax-table)
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171 (modify-syntax-entry ?# "' " emacs-lisp-mode-syntax-table)
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172 (modify-syntax-entry ?\" "\" " emacs-lisp-mode-syntax-table)
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173 (modify-syntax-entry ?\\ "\\ " emacs-lisp-mode-syntax-table)
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174 (modify-syntax-entry ?\( "() " emacs-lisp-mode-syntax-table)
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175 (modify-syntax-entry ?\) ")( " emacs-lisp-mode-syntax-table)
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176 (modify-syntax-entry ?\[ "(] " emacs-lisp-mode-syntax-table)
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177 (modify-syntax-entry ?\] ")[ " emacs-lisp-mode-syntax-table)))
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178
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179 (if (not lisp-mode-syntax-table)
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180 (progn (setq lisp-mode-syntax-table
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181 (copy-syntax-table emacs-lisp-mode-syntax-table))
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182 (modify-syntax-entry ?\[ "_ " lisp-mode-syntax-table)
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183 ;; XEmacs changes
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184 (modify-syntax-entry ?\] "_ " lisp-mode-syntax-table)
460
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185 (modify-syntax-entry ?# "' 58" lisp-mode-syntax-table)
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186 (modify-syntax-entry ?| "\" 67" lisp-mode-syntax-table)))
428
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187
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188 (define-abbrev-table 'lisp-mode-abbrev-table ())
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189
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190 (defvar lisp-imenu-generic-expression
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191 '(
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192 (nil
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193 "^\\s-*(def\\(un\\|subst\\|macro\\|advice\\)\\s-+\\([-A-Za-z0-9+*|:]+\\)" 2)
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194 ("Variables"
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195 "^\\s-*(def\\(var\\|const\\|custom\\)\\s-+\\([-A-Za-z0-9+*|:]+\\)" 2)
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196 ("Types"
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197 "^\\s-*(def\\(group\\|type\\|struct\\|class\\|ine-condition\\)\\s-+\\([-A-Za-z0-9+*|:]+\\)"
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198 2))
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199
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200 "Imenu generic expression for Lisp mode. See `imenu-generic-expression'.")
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201
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202 (defun lisp-mode-variables (lisp-syntax)
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203 (cond (lisp-syntax
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204 (set-syntax-table lisp-mode-syntax-table)))
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205 (setq local-abbrev-table lisp-mode-abbrev-table)
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206 (make-local-variable 'paragraph-start)
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207 (setq paragraph-start (concat page-delimiter "\\|$" ))
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208 (make-local-variable 'paragraph-separate)
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209 (setq paragraph-separate paragraph-start)
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210 (make-local-variable 'paragraph-ignore-fill-prefix)
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211 (setq paragraph-ignore-fill-prefix t)
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212 (make-local-variable 'fill-paragraph-function)
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213 (setq fill-paragraph-function 'lisp-fill-paragraph)
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214 ;; Adaptive fill mode gets in the way of auto-fill,
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215 ;; and should make no difference for explicit fill
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216 ;; because lisp-fill-paragraph should do the job.
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217 (make-local-variable 'adaptive-fill-mode)
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218 (setq adaptive-fill-mode nil)
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219 (make-local-variable 'indent-line-function)
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220 (setq indent-line-function 'lisp-indent-line)
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221 (make-local-variable 'indent-region-function)
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222 (setq indent-region-function 'lisp-indent-region)
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223 (make-local-variable 'parse-sexp-ignore-comments)
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224 (setq parse-sexp-ignore-comments t)
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225 (make-local-variable 'outline-regexp)
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226 (setq outline-regexp ";;; \\|(....")
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227 (make-local-variable 'comment-start)
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228 (setq comment-start ";")
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229 ;; XEmacs change
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230 (set (make-local-variable 'block-comment-start) ";;")
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231 (make-local-variable 'comment-start-skip)
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232 ;; Look within the line for a ; following an even number of backslashes
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233 ;; after either a non-backslash or the line beginning.
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234 (setq comment-start-skip "\\(\\(^\\|[^\\\\\n]\\)\\(\\\\\\\\\\)*\\);+ *")
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235 (make-local-variable 'comment-column)
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236 (setq comment-column 40)
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237 (make-local-variable 'comment-indent-function)
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238 (setq comment-indent-function 'lisp-comment-indent)
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239 ;; XEmacs change
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240 (set (make-local-variable 'dabbrev-case-fold-search) nil)
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241 (set (make-local-variable 'dabbrev-case-replace) nil)
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242 (make-local-variable 'imenu-generic-expression)
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243 (setq imenu-generic-expression lisp-imenu-generic-expression))
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244
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245 (defvar shared-lisp-mode-map ()
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246 "Keymap for commands shared by all sorts of Lisp modes.")
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247
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248 (if shared-lisp-mode-map
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249 ()
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250 (setq shared-lisp-mode-map (make-sparse-keymap))
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251 ;; XEmacs changes
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252 (set-keymap-name shared-lisp-mode-map 'shared-lisp-mode-map)
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253 (define-key shared-lisp-mode-map "\M-;" 'lisp-indent-for-comment)
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254 (define-key shared-lisp-mode-map "\e\C-q" 'indent-sexp))
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255
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256 (defvar emacs-lisp-mode-map ()
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257 "Keymap for Emacs Lisp mode.
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258 All commands in `shared-lisp-mode-map' are inherited by this map.")
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259
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260 (if emacs-lisp-mode-map
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261 ()
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262 ;; XEmacs: Ignore FSF nconc stuff
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263 (setq emacs-lisp-mode-map (make-sparse-keymap))
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264 (set-keymap-name emacs-lisp-mode-map 'emacs-lisp-mode-map)
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265 (set-keymap-parents emacs-lisp-mode-map (list shared-lisp-mode-map))
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266 (define-key emacs-lisp-mode-map "\e\t" 'lisp-complete-symbol)
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267 (define-key emacs-lisp-mode-map "\e\C-x" 'eval-defun)
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268 ;; XEmacs: Not sure what the FSF menu bindings are. I hope XEmacs
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269 ;; doesn't need them.
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270 )
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271
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272 (defun emacs-lisp-byte-compile ()
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273 "Byte compile the file containing the current buffer."
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274 (interactive)
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275 (if buffer-file-name
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276 ;; XEmacs change. Force buffer save first
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277 (progn
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278 (save-buffer)
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279 (byte-compile-file buffer-file-name))
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280 (error "The buffer must be saved in a file first.")))
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281
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282 (defun emacs-lisp-byte-compile-and-load ()
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283 "Byte-compile the current file (if it has changed), then load compiled code."
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284 (interactive)
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285 (or buffer-file-name
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286 (error "The buffer must be saved in a file first"))
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287 (require 'bytecomp)
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288 ;; Recompile if file or buffer has changed since last compilation.
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289 (if (and (buffer-modified-p)
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290 (y-or-n-p (format "save buffer %s first? " (buffer-name))))
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291 (save-buffer))
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292 (let ((compiled-file-name (byte-compile-dest-file buffer-file-name)))
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293 (if (file-newer-than-file-p compiled-file-name buffer-file-name)
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294 (load-file compiled-file-name)
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295 (byte-compile-file buffer-file-name t))))
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296
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297 (defun emacs-lisp-mode ()
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298 "Major mode for editing Lisp code to run in Emacs.
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299 Commands:
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300 Delete converts tabs to spaces as it moves back.
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301 Blank lines separate paragraphs. Semicolons start comments.
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302 \\{emacs-lisp-mode-map}
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303 Entry to this mode calls the value of `emacs-lisp-mode-hook'
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304 if that value is non-nil."
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305 (interactive)
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306 (kill-all-local-variables)
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307 (use-local-map emacs-lisp-mode-map)
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308 (set-syntax-table emacs-lisp-mode-syntax-table)
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309 ;; XEmacs changes
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310 (setq major-mode 'emacs-lisp-mode
442
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311 mode-popup-menu emacs-lisp-mode-popup-menu
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312 mode-name "Emacs-Lisp")
442
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313 (if (and (featurep 'menubar)
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314 current-menubar)
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315 (progn
428
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316 ;; make a local copy of the menubar, so our modes don't
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317 ;; change the global menubar
442
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318 (set-buffer-menubar current-menubar)
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319 (add-submenu nil emacs-lisp-mode-menubar-menu)))
428
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320 (lisp-mode-variables nil)
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321 (run-hooks 'emacs-lisp-mode-hook))
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322
430
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323 (put 'emacs-lisp-mode 'font-lock-lisp-like t)
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324
428
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325 (defvar lisp-mode-map ()
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326 "Keymap for ordinary Lisp mode.
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327 All commands in `shared-lisp-mode-map' are inherited by this map.")
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328
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329 (if lisp-mode-map
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330 ()
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331 ;; XEmacs changes
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332 (setq lisp-mode-map (make-sparse-keymap))
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333 (set-keymap-name lisp-mode-map 'lisp-mode-map)
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334 (set-keymap-parents lisp-mode-map (list shared-lisp-mode-map))
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335 (define-key lisp-mode-map "\e\C-x" 'lisp-send-defun)
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336 ;; gag, no. use ilisp. -jwz
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337 ;; (define-key lisp-mode-map "\C-c\C-z" 'run-lisp)
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338 )
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339
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340 (defun lisp-mode ()
613
023b83f4e54b [xemacs-hg @ 2001-06-10 10:42:16 by ben]
ben
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341 "Major mode for editing Lisp code for Lisps other than Emacs Lisp.
428
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342 Commands:
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343 Delete converts tabs to spaces as it moves back.
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344 Blank lines separate paragraphs. Semicolons start comments.
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345 \\{lisp-mode-map}
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346 Note that `run-lisp' may be used either to start an inferior Lisp job
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347 or to switch back to an existing one.
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348
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349 Entry to this mode calls the value of `lisp-mode-hook'
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350 if that value is non-nil."
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351 (interactive)
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352 (kill-all-local-variables)
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353 (use-local-map lisp-mode-map)
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354 (setq major-mode 'lisp-mode)
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355 (setq mode-name "Lisp")
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356 (lisp-mode-variables t)
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357 (set-syntax-table lisp-mode-syntax-table)
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358 (run-hooks 'lisp-mode-hook))
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359
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360 ;; This will do unless shell.el is loaded.
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361 ;; XEmacs change
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362 (defun lisp-send-defun ()
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363 "Send the current defun to the Lisp process made by \\[run-lisp]."
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364 (interactive)
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365 (error "Process lisp does not exist"))
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366
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367 ;; XEmacs change: emacs-lisp-mode-map is a more appropriate parent.
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368 (defvar lisp-interaction-mode-map ()
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369 "Keymap for Lisp Interaction mode.
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370 All commands in `shared-lisp-mode-map' are inherited by this map.")
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371
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372 (if lisp-interaction-mode-map
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373 ()
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374 ;; XEmacs set keymap our way
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375 (setq lisp-interaction-mode-map (make-sparse-keymap))
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376 (set-keymap-name lisp-interaction-mode-map 'lisp-interaction-mode-map)
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377 (set-keymap-parents lisp-interaction-mode-map (list emacs-lisp-mode-map))
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378 (define-key lisp-interaction-mode-map "\e\C-x" 'eval-defun)
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379 (define-key lisp-interaction-mode-map "\e\t" 'lisp-complete-symbol)
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cvs
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380 (define-key lisp-interaction-mode-map "\n" 'eval-print-last-sexp))
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381
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382 (defun lisp-interaction-mode ()
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383 "Major mode for typing and evaluating Lisp forms.
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cvs
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384 Like Lisp mode except that \\[eval-print-last-sexp] evals the Lisp expression
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385 before point, and prints its value into the buffer, advancing point.
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386
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cvs
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387 Commands:
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388 Delete converts tabs to spaces as it moves back.
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389 Paragraphs are separated only by blank lines.
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390 Semicolons start comments.
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cvs
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391 \\{lisp-interaction-mode-map}
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392 Entry to this mode calls the value of `lisp-interaction-mode-hook'
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393 if that value is non-nil."
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394 (interactive)
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395 (kill-all-local-variables)
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cvs
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396 (use-local-map lisp-interaction-mode-map)
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397 (setq major-mode 'lisp-interaction-mode)
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398 (setq mode-name "Lisp Interaction")
442
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399 (setq mode-popup-menu lisp-interaction-mode-popup-menu)
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cvs
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diff changeset
400 (if (and (featurep 'menubar)
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parents: 430
diff changeset
401 current-menubar)
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diff changeset
402 (progn
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diff changeset
403 ;; make a local copy of the menubar, so our modes don't
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cvs
parents: 430
diff changeset
404 ;; change the global menubar
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
405 (set-buffer-menubar current-menubar)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
406 (add-submenu nil lisp-interaction-mode-menubar-menu)))
428
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cvs
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407 (set-syntax-table emacs-lisp-mode-syntax-table)
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cvs
parents:
diff changeset
408 (lisp-mode-variables nil)
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cvs
parents:
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409 (run-hooks 'lisp-interaction-mode-hook))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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411 (defun eval-print-last-sexp ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412 "Evaluate sexp before point; print value into current buffer."
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cvs
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413 (interactive)
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cvs
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414 (let ((standard-output (current-buffer)))
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415 (terpri)
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cvs
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416 (eval-last-sexp t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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417 (terpri)))
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cvs
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418
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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419 ;; XEmacs change
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cvs
parents:
diff changeset
420 (defcustom eval-interactive-verbose t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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421 "*Non-nil means that interactive evaluation can print messages.
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422 The messages are printed when the expression is treated differently
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423 using `\\[eval-last-sexp]' and `\\[eval-defun]' than it than it would have been
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424 treated noninteractively.
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425
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426 The printed messages are \"defvar treated as defconst\" and \"defcustom
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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427 evaluation forced\". See `eval-interactive' for more details."
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428 :type 'boolean
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cvs
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429 :group 'lisp)
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cvs
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430
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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431 (defun eval-interactive (expr)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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432 "Like `eval' except that it transforms defvars to defconsts.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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433 The evaluation of defcustom forms is forced."
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cvs
parents:
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434 (cond ((and (eq (car-safe expr) 'defvar)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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435 (> (length expr) 2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436 (eval (cons 'defconst (cdr expr)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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437 (when eval-interactive-verbose
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438 (message "defvar treated as defconst")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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439 (sit-for 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
440 (message ""))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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441 (nth 1 expr))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 ((and (eq (car-safe expr) 'defcustom)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
443 (> (length expr) 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444 (default-boundp (nth 1 expr)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
445 ;; Force variable to be bound
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
446 ;; #### defcustom might specify a different :set method.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
447 (set-default (nth 1 expr) (eval (nth 2 expr)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448 ;; And evaluate the defcustom
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
449 (eval expr)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 (when eval-interactive-verbose
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 (message "defcustom evaluation forced")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 (sit-for 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 (message ""))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454 (nth 1 expr))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
456 (eval expr))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
457
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458 ;; XEmacs change, based on Bob Weiner suggestion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 (defun eval-last-sexp (eval-last-sexp-arg-internal) ;dynamic scoping wonderment
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460 "Evaluate sexp before point; print value in minibuffer.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
461 With argument, print output into current buffer."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
462 (interactive "P")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
463 (let ((standard-output (if eval-last-sexp-arg-internal (current-buffer) t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
464 (opoint (point))
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cvs
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465 ignore-quotes)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
466 (prin1 (eval-interactive
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
467 (letf (((syntax-table) emacs-lisp-mode-syntax-table))
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cvs
parents:
diff changeset
468 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
469 ;; If this sexp appears to be enclosed in `...' then
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
470 ;; ignore the surrounding quotes.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
471 (setq ignore-quotes (or (eq (char-after) ?\')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
472 (eq (char-before) ?\')))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
473 (forward-sexp -1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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474 ;; vladimir@cs.ualberta.ca 30-Jul-1997: skip ` in
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diff changeset
475 ;; `variable' so that the value is returned, not the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
476 ;; name.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
477 (if (and ignore-quotes
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
478 (eq (char-after) ?\`))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
479 (forward-char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
480 (save-restriction
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
481 (narrow-to-region (point-min) opoint)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
482 (let ((expr (read (current-buffer))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
483 (if (eq (car-safe expr) 'interactive)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
484 ;; If it's an (interactive ...) form, it's
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
485 ;; more useful to show how an interactive call
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
486 ;; would use it.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
487 `(call-interactively
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
488 (lambda (&rest args)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
489 ,expr args))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
490 expr)))))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
491
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
492 (defun eval-defun (eval-defun-arg-internal)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
493 "Evaluate defun that point is in or before.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
494 Print value in minibuffer.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
495 With argument, insert value in current buffer after the defun."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
496 (interactive "P")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
497 (let ((standard-output (if eval-defun-arg-internal (current-buffer) t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
498 (prin1 (eval-interactive (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
499 (end-of-defun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
500 (beginning-of-defun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
501 (read (current-buffer)))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
502
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
503
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
504 (defun lisp-comment-indent ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
505 (if (looking-at "\\s<\\s<\\s<")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
506 (current-column)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
507 (if (looking-at "\\s<\\s<")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
508 ;; #### FSF has:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
509 ;; (let ((tem (or (calculate-lisp-indent) (current-column)))) ...
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
510 (let ((tem (calculate-lisp-indent)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
511 (if (listp tem) (car tem) tem))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
512 (skip-chars-backward " \t")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
513 (max (if (bolp) 0 (1+ (current-column)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
514 comment-column))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
515
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
516 ;; XEmacs change
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
517 (defun lisp-indent-for-comment ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
518 "Indent this line's comment appropriately, or insert an empty comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
519 If adding a new comment on a blank line, use `block-comment-start' instead
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
520 of `comment-start' to open the comment."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
521 ;; by Stig@hackvan.com
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
522 ;; #### - This functionality, the recognition of block-comment-{start,end},
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
523 ;; will perhaps be standardized across modes and move to indent-for-comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
524 (interactive)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
525 (if (and block-comment-start
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
526 (save-excursion (beginning-of-line) (looking-at "^[ \t]*$")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
527 (insert block-comment-start))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
528 (indent-for-comment))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
529
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
530 (defvar lisp-indent-offset nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
531 (defvar lisp-indent-function 'lisp-indent-function)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
532
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
533 (defun lisp-indent-line (&optional whole-exp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
534 "Indent current line as Lisp code.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
535 With argument, indent any additional lines of the same expression
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
536 rigidly along with this one."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
537 (interactive "P")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
538 (let ((indent (calculate-lisp-indent)) shift-amt beg end
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
539 (pos (- (point-max) (point))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
540 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
541 (setq beg (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
542 (skip-chars-forward " \t")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
543 (if (looking-at "\\s<\\s<\\s<")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
544 ;; Don't alter indentation of a ;;; comment line.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
545 (goto-char (- (point-max) pos))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
546 (if (and (looking-at "\\s<") (not (looking-at "\\s<\\s<")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
547 ;; Single-semicolon comment lines should be indented
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
548 ;; as comment lines, not as code.
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 442
diff changeset
549 (progn (indent-for-comment) (backward-char 1))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
550 (if (listp indent) (setq indent (car indent)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
551 (setq shift-amt (- indent (current-column)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
552 (if (zerop shift-amt)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
553 nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
554 (delete-region beg (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
555 (indent-to indent)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
556 ;; If initial point was within line's indentation,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
557 ;; position after the indentation. Else stay at same point in text.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
558 (if (> (- (point-max) pos) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
559 (goto-char (- (point-max) pos)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
560 ;; If desired, shift remaining lines of expression the same amount.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
561 (and whole-exp (not (zerop shift-amt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
562 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
563 (goto-char beg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
564 (forward-sexp 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
565 (setq end (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
566 (goto-char beg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
567 (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
568 (setq beg (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
569 (> end beg))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
570 (indent-code-rigidly beg end shift-amt)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
571
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
572 (defvar calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
573
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
574 (defun calculate-lisp-indent (&optional parse-start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
575 "Return appropriate indentation for current line as Lisp code.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
576 In usual case returns an integer: the column to indent to.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
577 Can instead return a list, whose car is the column to indent to.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
578 This means that following lines at the same level of indentation
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
579 should not necessarily be indented the same way.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
580 The second element of the list is the buffer position
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
581 of the start of the containing expression."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
582 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
583 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
584 (let ((indent-point (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
585 ;; XEmacs change (remove paren-depth)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
586 state ;;paren-depth
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
587 ;; setting this to a number inhibits calling hook
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
588 (desired-indent nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
589 (retry t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
590 calculate-lisp-indent-last-sexp containing-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
591 (if parse-start
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
592 (goto-char parse-start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
593 (beginning-of-defun))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
594 ;; Find outermost containing sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
595 (while (< (point) indent-point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
596 (setq state (parse-partial-sexp (point) indent-point 0)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
597 ;; Find innermost containing sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
598 (while (and retry
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
599 state
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
600 ;; XEmacs change (remove paren-depth)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
601 (> ;;(setq paren-depth (elt state 0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
602 (elt state 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
603 0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
604 (setq retry nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
605 (setq calculate-lisp-indent-last-sexp (elt state 2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
606 (setq containing-sexp (elt state 1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
607 ;; Position following last unclosed open.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
608 (goto-char (1+ containing-sexp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
609 ;; Is there a complete sexp since then?
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
610 (if (and calculate-lisp-indent-last-sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
611 (> calculate-lisp-indent-last-sexp (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
612 ;; Yes, but is there a containing sexp after that?
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
613 (let ((peek (parse-partial-sexp calculate-lisp-indent-last-sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
614 indent-point 0)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
615 (if (setq retry (car (cdr peek))) (setq state peek)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
616 (if retry
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
617 nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
618 ;; Innermost containing sexp found
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
619 (goto-char (1+ containing-sexp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
620 (if (not calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
621 ;; indent-point immediately follows open paren.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
622 ;; Don't call hook.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
623 (setq desired-indent (current-column))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
624 ;; Find the start of first element of containing sexp.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
625 (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
626 (cond ((looking-at "\\s(")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
627 ;; First element of containing sexp is a list.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
628 ;; Indent under that list.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
629 )
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
630 ((> (save-excursion (forward-line 1) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
631 calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
632 ;; This is the first line to start within the containing sexp.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
633 ;; It's almost certainly a function call.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
634 (if (= (point) calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
635 ;; Containing sexp has nothing before this line
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
636 ;; except the first element. Indent under that element.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
637 nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
638 ;; Skip the first element, find start of second (the first
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
639 ;; argument of the function call) and indent under.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
640 (progn (forward-sexp 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
641 (parse-partial-sexp (point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
642 calculate-lisp-indent-last-sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
643 0 t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
644 (backward-prefix-chars))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
645 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
646 ;; Indent beneath first sexp on same line as
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
647 ;; calculate-lisp-indent-last-sexp. Again, it's
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
648 ;; almost certainly a function call.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
649 (goto-char calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
650 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
651 (parse-partial-sexp (point) calculate-lisp-indent-last-sexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
652 0 t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
653 (backward-prefix-chars)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
654 ;; Point is at the point to indent under unless we are inside a string.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
655 ;; Call indentation hook except when overridden by lisp-indent-offset
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
656 ;; or if the desired indentation has already been computed.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
657 (let ((normal-indent (current-column)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
658 (cond ((elt state 3)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
659 ;; Inside a string, don't change indentation.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
660 (goto-char indent-point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
661 (skip-chars-forward " \t")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
662 (current-column))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
663 (desired-indent)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
664 ((and (boundp 'lisp-indent-function)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
665 lisp-indent-function
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
666 (not retry))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
667 (or (funcall lisp-indent-function indent-point state)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
668 normal-indent))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
669 ;; XEmacs change:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
670 ;; lisp-indent-offset shouldn't override lisp-indent-function !
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
671 ((and (integerp lisp-indent-offset) containing-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
672 ;; Indent by constant offset
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
673 (goto-char containing-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
674 (+ normal-indent lisp-indent-offset))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
675 (t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
676 normal-indent))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
677
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
678 (defun lisp-indent-function (indent-point state)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
679 ;; free reference to `calculate-lisp-indent-last-sexp'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
680 ;; in #'calculate-lisp-indent
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
681 (let ((normal-indent (current-column)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
682 (goto-char (1+ (elt state 1)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
683 (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
684 (if (and (elt state 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
685 (not (looking-at "\\sw\\|\\s_")))
629
a6c89d799f00 [xemacs-hg @ 2001-07-15 08:18:59 by adrian]
adrian
parents: 613
diff changeset
686 ;; car of form doesn't seem to be a symbol
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
687 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
688 (if (not (> (save-excursion (forward-line 1) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
689 calculate-lisp-indent-last-sexp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
690 (progn (goto-char calculate-lisp-indent-last-sexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
691 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
692 (parse-partial-sexp (point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
693 calculate-lisp-indent-last-sexp 0 t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
694 ;; Indent under the list or under the first sexp on the same
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
695 ;; line as calculate-lisp-indent-last-sexp. Note that first
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
696 ;; thing on that line has to be complete sexp since we are
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
697 ;; inside the innermost containing sexp.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
698 (backward-prefix-chars)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
699 (current-column))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
700 (let ((function (buffer-substring (point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
701 (progn (forward-sexp 1) (point))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
702 method)
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
703 (if (condition-case nil
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
704 (save-excursion
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
705 (backward-up-list 1)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
706 (backward-up-list 1)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
707 (backward-up-list 1)
776
79940b592197 [xemacs-hg @ 2002-03-15 07:43:14 by ben]
ben
parents: 771
diff changeset
708 (looking-at "(\\(flet\\|macrolet\\|labels\\)\\s-"))
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
709 (error nil))
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
710 (setq method 'defun)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
711 (setq method (or (get (intern-soft function) 'lisp-indent-function)
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
712 (get (intern-soft function) 'lisp-indent-hook))))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
713 (cond ((or (eq method 'defun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
714 (and (null method)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
715 (> (length function) 3)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
716 (string-match "\\`def" function)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
717 (lisp-indent-defform state indent-point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
718 ((integerp method)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
719 (lisp-indent-specform method state
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
720 indent-point normal-indent))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
721 (method
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
722 (funcall method state indent-point)))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
723
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
724 (defvar lisp-body-indent 2
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
725 "Number of columns to indent the second line of a `(def...)' form.")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
726
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
727 (defun lisp-indent-specform (count state indent-point normal-indent)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
728 (let ((containing-form-start (elt state 1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
729 (i count)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
730 body-indent containing-form-column)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
731 ;; Move to the start of containing form, calculate indentation
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
732 ;; to use for non-distinguished forms (> count), and move past the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
733 ;; function symbol. lisp-indent-function guarantees that there is at
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
734 ;; least one word or symbol character following open paren of containing
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
735 ;; form.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
736 (goto-char containing-form-start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
737 (setq containing-form-column (current-column))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
738 (setq body-indent (+ lisp-body-indent containing-form-column))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
739 (forward-char 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
740 (forward-sexp 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
741 ;; Now find the start of the last form.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
742 (parse-partial-sexp (point) indent-point 1 t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
743 (while (and (< (point) indent-point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
744 (condition-case ()
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
745 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
746 (setq count (1- count))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
747 (forward-sexp 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
748 (parse-partial-sexp (point) indent-point 1 t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
749 (error nil))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
750 ;; Point is sitting on first character of last (or count) sexp.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
751 (if (> count 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
752 ;; A distinguished form. If it is the first or second form use double
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
753 ;; lisp-body-indent, else normal indent. With lisp-body-indent bound
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
754 ;; to 2 (the default), this just happens to work the same with if as
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
755 ;; the older code, but it makes unwind-protect, condition-case,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
756 ;; with-output-to-temp-buffer, et. al. much more tasteful. The older,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
757 ;; less hacked, behavior can be obtained by replacing below with
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
758 ;; (list normal-indent containing-form-start).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
759 (if (<= (- i count) 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
760 (list (+ containing-form-column (* 2 lisp-body-indent))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
761 containing-form-start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
762 (list normal-indent containing-form-start))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
763 ;; A non-distinguished form. Use body-indent if there are no
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
764 ;; distinguished forms and this is the first undistinguished form,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
765 ;; or if this is the first undistinguished form and the preceding
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
766 ;; distinguished form has indentation at least as great as body-indent.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
767 (if (or (and (= i 0) (= count 0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
768 (and (= count 0) (<= body-indent normal-indent)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
769 body-indent
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
770 normal-indent))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
771
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
772 (defun lisp-indent-defform (state indent-point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
773 (goto-char (car (cdr state)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
774 (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
775 (if (> (point) (car (cdr (cdr state))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
776 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
777 (goto-char (car (cdr state)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
778 (+ lisp-body-indent (current-column)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
779
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
780
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
781 ;; (put 'progn 'lisp-indent-function 0), say, causes progn to be indented
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
782 ;; like defun if the first form is placed on the next line, otherwise
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
783 ;; it is indented like any other form (i.e. forms line up under first).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
784
776
79940b592197 [xemacs-hg @ 2002-03-15 07:43:14 by ben]
ben
parents: 771
diff changeset
785 ;; NOTE: All def* functions are handled specially, no need to put them here.
79940b592197 [xemacs-hg @ 2002-03-15 07:43:14 by ben]
ben
parents: 771
diff changeset
786 ;; NOTE: All cl-* constructs are handled in cl.el.
79940b592197 [xemacs-hg @ 2002-03-15 07:43:14 by ben]
ben
parents: 771
diff changeset
787
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
788 (put 'lambda 'lisp-indent-function 'defun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
789 (put 'autoload 'lisp-indent-function 'defun)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
790 (put 'progn 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
791 (put 'prog1 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
792 (put 'prog2 'lisp-indent-function 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
793 (put 'save-excursion 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
794 (put 'save-window-excursion 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
795 (put 'save-selected-window 'lisp-indent-function 0)
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
796 (put 'with-selected-window 'lisp-indent-function 1)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
797 (put 'save-selected-frame 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
798 (put 'with-selected-frame 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
799 (put 'save-restriction 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
800 (put 'save-match-data 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
801 (put 'let 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
802 (put 'let* 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
803 (put 'let-specifier 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
804 (put 'while 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
805 (put 'if 'lisp-indent-function 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
806 (put 'catch 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
807 (put 'condition-case 'lisp-indent-function 2)
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
808 (put 'handler-case 'lisp-indent-function 1)
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
809 (put 'handler-bind 'lisp-indent-function 1)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
810 (put 'call-with-condition-handler 'lisp-indent-function 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
811 (put 'unwind-protect 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
812 (put 'save-current-buffer 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
813 (put 'with-current-buffer 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
814 (put 'with-string-as-buffer-contents 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
815 (put 'with-temp-file 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
816 (put 'with-temp-buffer 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
817 (put 'with-output-to-string 'lisp-indent-function 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
818 (put 'with-output-to-temp-buffer 'lisp-indent-function 1)
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
819 (put 'with-slots 'lisp-indent-function 2)
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
820 (put 'with-open-file 'lisp-indent-function 1)
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
821 (put 'with-open-stream 'lisp-indent-function 1)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
822 (put 'eval-after-load 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
823 (put 'display-message 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
824 (put 'display-warning 'lisp-indent-function 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
825 (put 'lmessage 'lisp-indent-function 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
826 (put 'lwarn 'lisp-indent-function 2)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
827 (put 'global-set-key 'lisp-indent-function 1)
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 446
diff changeset
828 (put 'print-unreadable-object 'lisp-indent-function 1)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
829
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
830 (defun indent-sexp (&optional endpos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
831 "Indent each line of the list starting just after point.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
832 If optional arg ENDPOS is given, indent each line, stopping when
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
833 ENDPOS is encountered."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
834 (interactive)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
835 (let ((indent-stack (list nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
836 (next-depth 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
837 ;; If ENDPOS is non-nil, use nil as STARTING-POINT
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
838 ;; so that calculate-lisp-indent will find the beginning of
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
839 ;; the defun we are in.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
840 ;; If ENDPOS is nil, it is safe not to scan before point
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
841 ;; since every line we indent is more deeply nested than point is.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
842 (starting-point (if endpos nil (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
843 (last-point (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
844 last-depth bol outer-loop-done inner-loop-done state this-indent)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
845 (or endpos
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
846 ;; Get error now if we don't have a complete sexp after point.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
847 (save-excursion (forward-sexp 1)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
848 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
849 (setq outer-loop-done nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
850 (while (if endpos (< (point) endpos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
851 (not outer-loop-done))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
852 (setq last-depth next-depth
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
853 inner-loop-done nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
854 ;; Parse this line so we can learn the state
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
855 ;; to indent the next line.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
856 ;; This inner loop goes through only once
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
857 ;; unless a line ends inside a string.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
858 (while (and (not inner-loop-done)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
859 (not (setq outer-loop-done (eobp))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
860 (setq state (parse-partial-sexp (point) (progn (end-of-line) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
861 nil nil state))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
862 (setq next-depth (car state))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
863 ;; If the line contains a comment other than the sort
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
864 ;; that is indented like code,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
865 ;; indent it now with indent-for-comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
866 ;; Comments indented like code are right already.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
867 ;; In any case clear the in-comment flag in the state
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
868 ;; because parse-partial-sexp never sees the newlines.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
869 (if (car (nthcdr 4 state))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
870 (progn (indent-for-comment)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
871 (end-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
872 (setcar (nthcdr 4 state) nil)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
873 ;; If this line ends inside a string,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
874 ;; go straight to next line, remaining within the inner loop,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
875 ;; and turn off the \-flag.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
876 (if (car (nthcdr 3 state))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
877 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
878 (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
879 (setcar (nthcdr 5 state) nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
880 (setq inner-loop-done t)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
881 (and endpos
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
882 (<= next-depth 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
883 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
884 (setq indent-stack (append indent-stack
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
885 (make-list (- next-depth) nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
886 last-depth (- last-depth next-depth)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
887 next-depth 0)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
888 (or outer-loop-done endpos
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
889 (setq outer-loop-done (<= next-depth 0)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
890 (if outer-loop-done
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
891 (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
892 (while (> last-depth next-depth)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
893 (setq indent-stack (cdr indent-stack)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
894 last-depth (1- last-depth)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
895 (while (< last-depth next-depth)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
896 (setq indent-stack (cons nil indent-stack)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
897 last-depth (1+ last-depth)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
898 ;; Now go to the next line and indent it according
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
899 ;; to what we learned from parsing the previous one.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
900 (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
901 (setq bol (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
902 (skip-chars-forward " \t")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
903 ;; But not if the line is blank, or just a comment
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
904 ;; (except for double-semi comments; indent them as usual).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
905 (if (or (eobp) (looking-at "\\s<\\|\n"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
906 nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
907 (if (and (car indent-stack)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
908 (>= (car indent-stack) 0))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
909 (setq this-indent (car indent-stack))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
910 (let ((val (calculate-lisp-indent
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
911 (if (car indent-stack) (- (car indent-stack))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
912 starting-point))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
913 (if (integerp val)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
914 (setcar indent-stack
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
915 (setq this-indent val))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
916 (setcar indent-stack (- (car (cdr val))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
917 (setq this-indent (car val)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
918 (if (/= (current-column) this-indent)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
919 (progn (delete-region bol (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
920 (indent-to this-indent)))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
921 (or outer-loop-done
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
922 (setq outer-loop-done (= (point) last-point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
923 (setq last-point (point)))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
924
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
925 ;; Indent every line whose first char is between START and END inclusive.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
926 (defun lisp-indent-region (start end)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
927 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
928 (let ((endmark (copy-marker end)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
929 (goto-char start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
930 (and (bolp) (not (eolp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
931 (lisp-indent-line))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
932 (indent-sexp endmark)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
933 (set-marker endmark nil))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
934
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
935 ;;;; Lisp paragraph filling commands.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
936
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
937 (defun lisp-fill-paragraph (&optional justify)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
938 "Like \\[fill-paragraph], but handle Emacs Lisp comments.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
939 If any of the current line is a comment, fill the comment or the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
940 paragraph of it that point is in, preserving the comment's indentation
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
941 and initial semicolons."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
942 (interactive "P")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
943 (let (
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
944 ;; Non-nil if the current line contains a comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
945 has-comment
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
946
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
947 ;; Non-nil if the current line contains code and a comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
948 has-code-and-comment
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
949
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
950 ;; If has-comment, the appropriate fill-prefix for the comment.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
951 comment-fill-prefix
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
952 )
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
953
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
954 ;; Figure out what kind of comment we are looking at.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
955 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
956 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
957 (cond
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
958
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
959 ;; A line with nothing but a comment on it?
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
960 ((looking-at "[ \t]*;[; \t]*")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
961 (setq has-comment t
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
962 comment-fill-prefix (buffer-substring (match-beginning 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
963 (match-end 0))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
964
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
965 ;; A line with some code, followed by a comment? Remember that the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
966 ;; semi which starts the comment shouldn't be part of a string or
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
967 ;; character.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
968 ;; XEmacs Try this the FSF and see if it works.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
969 ; ((progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
970 ; (while (not (looking-at ";\\|$"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
971 ; (skip-chars-forward "^;\n\"\\\\?")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
972 ; (cond
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
973 ; ((eq (char-after (point)) ?\\) (forward-char 2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
974 ; ((memq (char-after (point)) '(?\" ??)) (forward-sexp 1))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
975 ; (looking-at ";+[\t ]*"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
976 ; (setq has-comment t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
977 ((condition-case nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
978 (save-restriction
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
979 (narrow-to-region (point-min)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
980 (save-excursion (end-of-line) (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
981 (while (not (looking-at ";\\|$"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
982 (skip-chars-forward "^;\n\"\\\\?")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
983 (cond
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
984 ((eq (char-after (point)) ?\\) (forward-char 2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
985 ((memq (char-after (point)) '(?\" ??)) (forward-sexp 1))))
844
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 800
diff changeset
986 ;; don't do comment filling in a string, or we will mess up
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 800
diff changeset
987 ;; doc strings and other places where semicolons are used.
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 800
diff changeset
988 (and (not (eq 'string (buffer-syntactic-context)))
047d37eb70d7 [xemacs-hg @ 2002-05-16 13:30:23 by ben]
ben
parents: 800
diff changeset
989 (looking-at ";+[\t ]*")))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
990 (error nil))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
991 (setq has-comment t has-code-and-comment t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
992 (setq comment-fill-prefix
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
993 (concat (make-string (/ (current-column) 8) ?\t)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
994 (make-string (% (current-column) 8) ?\ )
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
995 (buffer-substring (match-beginning 0) (match-end 0)))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
996
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
997 (if (not has-comment)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
998 (fill-paragraph justify)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
999
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1000 ;; Narrow to include only the comment, and then fill the region.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1001 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1002 (save-restriction
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1003 (beginning-of-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1004 (narrow-to-region
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1005 ;; Find the first line we should include in the region to fill.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1006 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1007 (while (and (zerop (forward-line -1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1008 (looking-at "^[ \t]*;")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1009 ;; We may have gone too far. Go forward again.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1010 (or (looking-at ".*;")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1011 (forward-line 1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1012 (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1013 ;; Find the beginning of the first line past the region to fill.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1014 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1015 (while (progn (forward-line 1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1016 (looking-at "^[ \t]*;")))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1017 (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1018
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1019 ;; Lines with only semicolons on them can be paragraph boundaries.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1020 (let* ((paragraph-start (concat paragraph-start "\\|[ \t;]*$"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1021 (paragraph-separate (concat paragraph-start "\\|[ \t;]*$"))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1022 (paragraph-ignore-fill-prefix nil)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1023 (fill-prefix comment-fill-prefix)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1024 (after-line (if has-code-and-comment
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1025 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1026 (forward-line 1) (point))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1027 (end (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1028 (forward-paragraph)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1029 (or (bolp) (newline 1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1030 (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1031 ;; If this comment starts on a line with code,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1032 ;; include that like in the filling.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1033 (beg (progn (backward-paragraph)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1034 (if (eq (point) after-line)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1035 (forward-line -1))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1036 (point))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1037 (fill-region-as-paragraph beg end
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1038 justify nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1039 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1040 (goto-char beg)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1041 (if (looking-at fill-prefix)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1042 nil
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1043 (re-search-forward comment-start-skip)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1044 (point))))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1045 t))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1046
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1047 (defun indent-code-rigidly (start end arg &optional nochange-regexp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1048 "Indent all lines of code, starting in the region, sideways by ARG columns.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1049 Does not affect lines starting inside comments or strings, assuming that
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1050 the start of the region is not inside them.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1051
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1052 Called from a program, takes args START, END, COLUMNS and NOCHANGE-REGEXP.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1053 The last is a regexp which, if matched at the beginning of a line,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1054 means don't indent that line."
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1055 (interactive "r\np")
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1056 (let (state)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1057 (save-excursion
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1058 (goto-char end)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1059 (setq end (point-marker))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1060 (goto-char start)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1061 (or (bolp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1062 (setq state (parse-partial-sexp (point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1063 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1064 (forward-line 1) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1065 nil nil state)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1066 (while (< (point) end)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1067 (or (car (nthcdr 3 state))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1068 (and nochange-regexp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1069 (looking-at nochange-regexp))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1070 ;; If line does not start in string, indent it
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1071 (let ((indent (current-indentation)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1072 (delete-region (point) (progn (skip-chars-forward " \t") (point)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1073 (or (eolp)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1074 (indent-to (max 0 (+ indent arg)) 0))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1075 (setq state (parse-partial-sexp (point)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1076 (progn
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1077 (forward-line 1) (point))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1078 nil nil state))))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1079
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1080 (provide 'lisp-mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1081
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1082 ;;; lisp-mode.el ends here