annotate src/cmds.c @ 3063:d30cd499e445

[xemacs-hg @ 2005-11-13 10:48:01 by ben] further error-checking, etc. alloc.c, lrecord.h: Move around the handling of setting of lheader->uid so it's in set_lheader_implementation() -- that way, even non-MC-ALLOC builds get useful uid's in their bare lrecords. Redo related code for strings so the non-ascii count that is stored in the uid isn't hosed. events.c: Save and restore the uid around event zeroing/deadbeefing. lisp.h: Set the correct value of MAX_STRING_ASCII_BEGIN under MC_ALLOC. lisp.h: rearrange the basic code handling ints and chars. basic int stuff goes first, followed by basic char stuff, followed in turn by stuff that mixes ints and chars. this is required since some basic defn's have become inline functions. XCHAR and CHARP have additional error-checking in that they check to make sure that the value in question is not just a character but a valid character (i.e. its numeric value is valid). print.c: debug_p4 now has a useful UID in all cases and uses it; but it also prints the raw header address (previously, you just got one of them). text.h: some basic char defn's that belonged in lisp.h have been moved there. valid_ichar_p() is moved too since the inline functions need it.
author ben
date Sun, 13 Nov 2005 10:48:04 +0000
parents b95fe16005fd
children 91950589598c
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1 /* Simple built-in editing commands.
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2 Copyright (C) 1985, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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3 Copyright (C) 2002 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Mule 2.0, FSF 19.30. */
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23
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24 #include <config.h>
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25 #include "lisp.h"
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26 #include "commands.h"
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27 #include "buffer.h"
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28 #include "extents.h"
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29 #include "syntax.h"
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30 #include "insdel.h"
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31
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32 Lisp_Object Qkill_forward_chars;
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33 Lisp_Object Qself_insert_command;
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34 Lisp_Object Qno_self_insert;
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35
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36 Lisp_Object Vblink_paren_function;
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37
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38 /* A possible value for a buffer's overwrite-mode variable. */
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39 Lisp_Object Qoverwrite_mode_binary;
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40
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41 /* Non-nil means put this face on the next self-inserting character. */
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42 Lisp_Object Vself_insert_face;
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43
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44 /* This is the command that set up Vself_insert_face. */
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45 Lisp_Object Vself_insert_face_command;
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46
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47 /* A char-table for characters which may invoke auto-filling. */
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48 Lisp_Object Vauto_fill_chars;
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49
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50 DEFUN ("forward-char", Fforward_char, 0, 2, "_p", /*
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51 Move point right COUNT characters (left if COUNT is negative).
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52 On attempt to pass end of buffer, stop and signal `end-of-buffer'.
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53 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'.
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54 On reaching end of buffer, stop and signal error.
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55
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56 The characters that are moved over may be added to the current selection
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57 \(i.e. active region) if the Shift key is held down, a motion key is used
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58 to invoke this command, and `shifted-motion-keys-select-region' is t; see
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59 the documentation for this variable for more details.
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60 */
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61 (count, buffer))
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62 {
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63 struct buffer *buf = decode_buffer (buffer, 1);
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64 EMACS_INT n;
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65
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66 if (NILP (count))
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67 n = 1;
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68 else
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69 {
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70 CHECK_INT (count);
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71 n = XINT (count);
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72 }
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73
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74 /* This used to just set point to point + XINT (count), and then check
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75 to see if it was within boundaries. But now that SET_PT can
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76 potentially do a lot of stuff (calling entering and exiting
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77 hooks, etcetera), that's not a good approach. So we validate the
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78 proposed position, then set point. */
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79 {
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80 Charbpos new_point = BUF_PT (buf) + n;
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81
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82 if (new_point < BUF_BEGV (buf))
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83 {
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84 BUF_SET_PT (buf, BUF_BEGV (buf));
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85 Fsignal (Qbeginning_of_buffer, Qnil);
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86 return Qnil;
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87 }
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88 if (new_point > BUF_ZV (buf))
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89 {
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90 BUF_SET_PT (buf, BUF_ZV (buf));
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91 Fsignal (Qend_of_buffer, Qnil);
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92 return Qnil;
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93 }
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94
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95 BUF_SET_PT (buf, new_point);
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96 }
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97
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98 return Qnil;
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99 }
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100
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101 DEFUN ("backward-char", Fbackward_char, 0, 2, "_p", /*
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102 Move point left COUNT characters (right if COUNT is negative).
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103 On attempt to pass end of buffer, stop and signal `end-of-buffer'.
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104 On attempt to pass beginning of buffer, stop and signal `beginning-of-buffer'.
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105
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106 The characters that are moved over may be added to the current selection
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107 \(i.e. active region) if the Shift key is held down, a motion key is used
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108 to invoke this command, and `shifted-motion-keys-select-region' is t; see
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109 the documentation for this variable for more details.
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110 */
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111 (count, buffer))
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112 {
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113 if (NILP (count))
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114 count = make_int (-1);
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115 else
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116 {
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117 CHECK_INT (count);
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118 count = make_int (- XINT (count));
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119 }
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120 return Fforward_char (count, buffer);
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121 }
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122
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123 DEFUN ("forward-line", Fforward_line, 0, 2, "_p", /*
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124 Move COUNT lines forward (backward if COUNT is negative).
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125 Precisely, if point is on line I, move to the start of line I + COUNT.
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126 If there isn't room, go as far as possible (no error).
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127 Returns the count of lines left to move. If moving forward,
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128 that is COUNT - number of lines moved; if backward, COUNT + number moved.
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129 With positive COUNT, a non-empty line at the end counts as one line
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130 successfully moved (for the return value).
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131 If BUFFER is nil, the current buffer is assumed.
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132
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133 The characters that are moved over may be added to the current selection
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134 \(i.e. active region) if the Shift key is held down, a motion key is used
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135 to invoke this command, and `shifted-motion-keys-select-region' is t; see
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136 the documentation for this variable for more details.
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137 */
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138 (count, buffer))
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139 {
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140 struct buffer *buf = decode_buffer (buffer, 1);
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141 Charbpos pos2 = BUF_PT (buf);
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142 Charbpos pos;
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143 EMACS_INT n, shortage, negp;
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144
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145 if (NILP (count))
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146 n = 1;
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147 else
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148 {
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149 CHECK_INT (count);
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150 n = XINT (count);
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151 }
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152
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153 negp = n <= 0;
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154 pos = scan_buffer (buf, '\n', pos2, 0, n - negp, &shortage, 1);
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155 if (shortage > 0
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156 && (negp
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157 || (BUF_ZV (buf) > BUF_BEGV (buf)
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158 && pos != pos2
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159 && BUF_FETCH_CHAR (buf, pos - 1) != '\n')))
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160 shortage--;
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161 BUF_SET_PT (buf, pos);
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162 return make_int (negp ? - shortage : shortage);
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163 }
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164
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165 DEFUN ("point-at-bol", Fpoint_at_bol, 0, 2, 0, /*
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166 Return the character position of the first character on the current line.
444
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parents: 442
diff changeset
167 With argument COUNT not nil or 1, move forward COUNT - 1 lines first.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
168 If scan reaches end of buffer, return that position.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
169 This function does not move point.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
170 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
171 (count, buffer))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
172 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
173 struct buffer *b = decode_buffer (buffer, 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
174 REGISTER int orig, end;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
175
793
e38acbeb1cae [xemacs-hg @ 2002-03-29 04:46:17 by ben]
ben
parents: 665
diff changeset
176 buffer = wrap_buffer (b);
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
177 if (NILP (count))
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
178 count = make_int (0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
179 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
180 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
181 CHECK_INT (count);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
182 count = make_int (XINT (count) - 1);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
183 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
184
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
185 orig = BUF_PT (b);
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
186 Fforward_line (count, buffer);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
187 end = BUF_PT (b);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
188 BUF_SET_PT (b, orig);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
189
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
190 return make_int (end);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
191 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
192
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
193 DEFUN ("beginning-of-line", Fbeginning_of_line, 0, 2, "_p", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
194 Move point to beginning of current line.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
195 With argument COUNT not nil or 1, move forward COUNT - 1 lines first.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
196 If scan reaches end of buffer, stop there without error.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
197 If BUFFER is nil, the current buffer is assumed.
462
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
198
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
199 The characters that are moved over may be added to the current selection
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
200 \(i.e. active region) if the Shift key is held down, a motion key is used
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
201 to invoke this command, and `shifted-motion-keys-select-region' is t; see
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
202 the documentation for this variable for more details.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
203 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
204 (count, buffer))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
205 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
206 struct buffer *b = decode_buffer (buffer, 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
207
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
208 BUF_SET_PT (b, XINT (Fpoint_at_bol (count, buffer)));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
209 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
210 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
211
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
212 DEFUN ("point-at-eol", Fpoint_at_eol, 0, 2, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
213 Return the character position of the last character on the current line.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
214 With argument COUNT not nil or 1, move forward COUNT - 1 lines first.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
215 If scan reaches end of buffer, return that position.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
216 This function does not move point.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
217 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
218 (count, buffer))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
219 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
220 struct buffer *buf = decode_buffer (buffer, 1);
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
221 EMACS_INT n;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
222
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
223 if (NILP (count))
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
224 n = 1;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
225 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
226 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
227 CHECK_INT (count);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
228 n = XINT (count);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
229 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
230
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
231 return make_int (find_before_next_newline (buf, BUF_PT (buf), 0,
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
232 n - (n <= 0)));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
233 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
234
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
235 DEFUN ("end-of-line", Fend_of_line, 0, 2, "_p", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
236 Move point to end of current line.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
237 With argument COUNT not nil or 1, move forward COUNT - 1 lines first.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
238 If scan reaches end of buffer, stop there without error.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
239 If BUFFER is nil, the current buffer is assumed.
462
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
240
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
241 The characters that are moved over may be added to the current selection
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
242 \(i.e. active region) if the Shift key is held down, a motion key is used
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
243 to invoke this command, and `shifted-motion-keys-select-region' is t; see
0784d089fdc9 Import from CVS: tag r21-2-46
cvs
parents: 446
diff changeset
244 the documentation for this variable for more details.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
245 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
246 (count, buffer))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
247 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
248 struct buffer *b = decode_buffer (buffer, 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
249
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
250 BUF_SET_PT (b, XINT (Fpoint_at_eol (count, buffer)));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
251 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
252 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
253
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
254 DEFUN ("delete-char", Fdelete_char, 0, 2, "*p\nP", /*
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
255 Delete the following COUNT characters (previous, with negative COUNT).
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
256 Optional second arg KILLP non-nil means kill instead (save in kill ring).
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
257 Interactively, COUNT is the prefix arg, and KILLP is set if
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
258 COUNT was explicitly specified.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
259 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
260 (count, killp))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
261 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
262 /* This function can GC */
665
fdefd0186b75 [xemacs-hg @ 2001-09-20 06:28:42 by ben]
ben
parents: 563
diff changeset
263 Charbpos pos;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
264 struct buffer *buf = current_buffer;
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
265 EMACS_INT n;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
266
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
267 if (NILP (count))
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
268 n = 1;
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
269 else
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
270 {
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
271 CHECK_INT (count);
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
272 n = XINT (count);
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
273 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
274
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
275 pos = BUF_PT (buf) + n;
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
276 if (NILP (killp))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
277 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
278 if (n < 0)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
279 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
280 if (pos < BUF_BEGV (buf))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
281 signal_error (Qbeginning_of_buffer, 0, Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
282 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
283 buffer_delete_range (buf, pos, BUF_PT (buf), 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
284 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
285 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
286 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
287 if (pos > BUF_ZV (buf))
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
288 signal_error (Qend_of_buffer, 0, Qunbound);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
289 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
290 buffer_delete_range (buf, BUF_PT (buf), pos, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
291 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
292 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
293 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
294 {
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
295 call1 (Qkill_forward_chars, count);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
296 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
297 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
298 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
299
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
300 DEFUN ("delete-backward-char", Fdelete_backward_char, 0, 2, "*p\nP", /*
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
301 Delete the previous COUNT characters (following, with negative COUNT).
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
302 Optional second arg KILLP non-nil means kill instead (save in kill ring).
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
303 Interactively, COUNT is the prefix arg, and KILLP is set if
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
304 COUNT was explicitly specified.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
305 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
306 (count, killp))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
307 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
308 /* This function can GC */
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
309 EMACS_INT n;
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
310
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
311 if (NILP (count))
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
312 n = 1;
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
313 else
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
314 {
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
315 CHECK_INT (count);
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
316 n = XINT (count);
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
317 }
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
318
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
319 return Fdelete_char (make_int (- n), killp);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
320 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
321
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 826
diff changeset
322 static void internal_self_insert (Ichar ch, int noautofill);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
323
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
324 DEFUN ("self-insert-command", Fself_insert_command, 1, 1, "*p", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
325 Insert the character you type.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
326 Whichever character you type to run this command is inserted.
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
327 If a prefix arg COUNT is specified, the character is inserted COUNT times.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
328 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
329 (count))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
330 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
331 /* This function can GC */
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 826
diff changeset
332 Ichar ch;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
333 Lisp_Object c;
446
1ccc32a20af4 Import from CVS: tag r21-2-38
cvs
parents: 444
diff changeset
334 EMACS_INT n;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
335
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
336 CHECK_NATNUM (count);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
337 n = XINT (count);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
338
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
339 if (CHAR_OR_CHAR_INTP (Vlast_command_char))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
340 c = Vlast_command_char;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
341 else
2862
b95fe16005fd [xemacs-hg @ 2005-07-17 20:08:40 by aidan]
aidan
parents: 2828
diff changeset
342 c = Fevent_to_character (Vlast_command_event, Qnil, Qnil, Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
343
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
344 if (NILP (c))
2828
a25c824ed558 [xemacs-hg @ 2005-06-26 18:04:49 by aidan]
aidan
parents: 872
diff changeset
345 invalid_operation (
a25c824ed558 [xemacs-hg @ 2005-06-26 18:04:49 by aidan]
aidan
parents: 872
diff changeset
346 "Last typed key has no character equivalent (that we know of)",
a25c824ed558 [xemacs-hg @ 2005-06-26 18:04:49 by aidan]
aidan
parents: 872
diff changeset
347 Fcopy_event (Vlast_command_event, Qnil));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
348
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
349 CHECK_CHAR_COERCE_INT (c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
350
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
351 ch = XCHAR (c);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
352
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
353 while (n--)
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
354 internal_self_insert (ch, (n != 0));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
355
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
356 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
357 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
358
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
359 /* Insert character C1. If NOAUTOFILL is nonzero, don't do autofill
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
360 even if it is enabled.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
361
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
362 FSF:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
363
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
364 If this insertion is suitable for direct output (completely simple),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
365 return 0. A value of 1 indicates this *might* not have been simple.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
366 A value of 2 means this did things that call for an undo boundary. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
367
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
368 static void
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 826
diff changeset
369 internal_self_insert (Ichar c1, int noautofill)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
370 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
371 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
372 /* int hairy = 0; -- unused */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
373 REGISTER enum syntaxcode synt;
867
804517e16990 [xemacs-hg @ 2002-06-05 09:54:39 by ben]
ben
parents: 826
diff changeset
374 REGISTER Ichar c2;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
375 Lisp_Object overwrite;
826
6728e641994e [xemacs-hg @ 2002-05-05 11:30:15 by ben]
ben
parents: 793
diff changeset
376 Lisp_Object syntax_table;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
377 struct buffer *buf = current_buffer;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
378 int tab_width;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
379
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
380 overwrite = buf->overwrite_mode;
826
6728e641994e [xemacs-hg @ 2002-05-05 11:30:15 by ben]
ben
parents: 793
diff changeset
381 syntax_table = buf->mirror_syntax_table;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
382
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
383 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
384 /* No, this is very bad, it makes undo *always* undo a character at a time
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
385 instead of grouping consecutive self-inserts together. Nasty nasty.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
386 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
387 if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
388 || !NILP (Vbefore_change_function) || !NILP (Vafter_change_function))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
389 hairy = 1;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
390 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
391
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
392 if (!NILP (overwrite)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
393 && BUF_PT (buf) < BUF_ZV (buf)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
394 && (EQ (overwrite, Qoverwrite_mode_binary)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
395 || (c1 != '\n' && BUF_FETCH_CHAR (buf, BUF_PT (buf)) != '\n'))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
396 && (EQ (overwrite, Qoverwrite_mode_binary)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
397 || BUF_FETCH_CHAR (buf, BUF_PT (buf)) != '\t'
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
398 || ((tab_width = XINT (buf->tab_width), tab_width <= 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
399 || tab_width > 20
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
400 || !((current_column (buf) + 1) % tab_width))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
401 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
402 buffer_delete_range (buf, BUF_PT (buf), BUF_PT (buf) + 1, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
403 /* hairy = 2; */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
404 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
405
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
406 if (!NILP (buf->abbrev_mode)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
407 && !WORD_SYNTAX_P (syntax_table, c1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
408 && NILP (buf->read_only)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
409 && BUF_PT (buf) > BUF_BEGV (buf))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
411 c2 = BUF_FETCH_CHAR (buf, BUF_PT (buf) - 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
413 if (WORD_SYNTAX_P (syntax_table, c2))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
414 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
415 #if 1
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
416 Fexpand_abbrev ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
417 #else /* FSFmacs */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
418 Lisp_Object sym = Fexpand_abbrev ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
419
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
420 /* I think this is too bogus to add. The function should
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
421 have a way of examining the character to be inserted, so
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
422 it can decide whether to insert it or not. We should
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
423 design it better than that. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
424
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
425 /* Here FSFmacs remembers MODIFF, compares it after
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
426 Fexpand_abbrev() finishes, and updates HAIRY. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
427
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
428 /* NOTE: we cannot simply check for Vlast_abbrev, because
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
429 Fexpand_abbrev() can bail out before setting it to
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
430 anything meaningful, leaving us stuck with an old value.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
431 Thus Fexpand_abbrev() was extended to return the actual
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
432 abbrev symbol. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
433 if (!NILP (sym)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
434 && !NILP (symbol_function (XSYMBOL (sym)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
435 && SYMBOLP (symbol_function (XSYMBOL (sym))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
437 Lisp_Object prop = Fget (symbol_function (XSYMBOL (sym)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438 Qno_self_insert, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
439 if (!NILP (prop))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
440 return;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
441 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 #endif /* FSFmacs */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
443 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444 }
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
445 if ((CHAR_TABLEP (Vauto_fill_chars)
826
6728e641994e [xemacs-hg @ 2002-05-05 11:30:15 by ben]
ben
parents: 793
diff changeset
446 ? !NILP (get_char_table (c1, Vauto_fill_chars))
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 440
diff changeset
447 : (c1 == ' ' || c1 == '\n'))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448 && !noautofill
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
449 && !NILP (buf->auto_fill_function))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 buffer_insert_emacs_char (buf, c1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 if (c1 == '\n')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 /* After inserting a newline, move to previous line and fill */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454 /* that. Must have the newline in place already so filling and */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 /* justification, if any, know where the end is going to be. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
456 BUF_SET_PT (buf, BUF_PT (buf) - 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
457 call0 (buf->auto_fill_function);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458 if (c1 == '\n')
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 BUF_SET_PT (buf, BUF_PT (buf) + 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460 /* hairy = 2; */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
461 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
462 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
463 buffer_insert_emacs_char (buf, c1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
464
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
465 /* If previous command specified a face to use, use it. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
466 if (!NILP (Vself_insert_face)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
467 && EQ (Vlast_command, Vself_insert_face_command))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
468 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
469 Lisp_Object before = make_int (BUF_PT (buf) - 1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
470 Lisp_Object after = make_int (BUF_PT (buf));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
471 Fput_text_property (before, after, Qface, Vself_insert_face, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
472 Fput_text_property (before, after, Qstart_open, Qt, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
473 Fput_text_property (before, after, Qend_open, Qnil, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
474 /* #### FSFmacs properties are normally closed ("sticky") on the
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
475 end but not the beginning. It's the opposite for us. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
476 Vself_insert_face = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
477 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
478 synt = SYNTAX (syntax_table, c1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
479 if ((synt == Sclose || synt == Smath)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
480 && !NILP (Vblink_paren_function) && INTERACTIVE
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
481 && !noautofill)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
482 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
483 call0 (Vblink_paren_function);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
484 /* hairy = 2; */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
485 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
486
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
487 /* return hairy; */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
488 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
489
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
490 /* (this comes from Mule but is a generally good idea) */
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 ("self-insert-internal", Fself_insert_internal, 1, 1, 0, /*
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
493 Invoke `self-insert-command' as if CHARACTER is entered from keyboard.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
494 */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
495 (character))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
496 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
497 /* This function can GC */
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
498 CHECK_CHAR_COERCE_INT (character);
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
499 internal_self_insert (XCHAR (character), 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
500 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
501 }
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 /* module initialization */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
504
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
505 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
506 syms_of_cmds (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
507 {
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
508 DEFSYMBOL (Qkill_forward_chars);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
509 DEFSYMBOL (Qself_insert_command);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
510 DEFSYMBOL (Qoverwrite_mode_binary);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 462
diff changeset
511 DEFSYMBOL (Qno_self_insert);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
512
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
513 DEFSUBR (Fforward_char);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
514 DEFSUBR (Fbackward_char);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
515 DEFSUBR (Fforward_line);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
516 DEFSUBR (Fbeginning_of_line);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
517 DEFSUBR (Fend_of_line);
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518
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519 DEFSUBR (Fpoint_at_bol);
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520 DEFSUBR (Fpoint_at_eol);
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521
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522 DEFSUBR (Fdelete_char);
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523 DEFSUBR (Fdelete_backward_char);
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524
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525 DEFSUBR (Fself_insert_command);
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526 DEFSUBR (Fself_insert_internal);
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527 }
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528
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529 void
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530 vars_of_cmds (void)
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531 {
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532 DEFVAR_LISP ("self-insert-face", &Vself_insert_face /*
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533 If non-nil, set the face of the next self-inserting character to this.
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534 See also `self-insert-face-command'.
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535 */ );
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536 Vself_insert_face = Qnil;
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537
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538 DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command /*
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539 This is the command that set up `self-insert-face'.
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540 If `last-command' does not equal this value, we ignore `self-insert-face'.
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541 */ );
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542 Vself_insert_face_command = Qnil;
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543
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544 DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function /*
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545 Function called, if non-nil, whenever a close parenthesis is inserted.
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546 More precisely, a char with closeparen syntax is self-inserted.
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547 */ );
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548 Vblink_paren_function = Qnil;
442
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549
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550 DEFVAR_LISP ("auto-fill-chars", &Vauto_fill_chars /*
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551 A char-table for characters which invoke auto-filling.
444
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552 Such characters have value t in this table.
442
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553 */);
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554 Vauto_fill_chars = Fmake_char_table (Qgeneric);
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555 XCHAR_TABLE (Vauto_fill_chars)->ascii[' '] = Qt;
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556 XCHAR_TABLE (Vauto_fill_chars)->ascii['\n'] = Qt;
428
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557 }