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0
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1 /* Buffer manipulation primitives for XEmacs.
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2 Copyright (C) 1985-1989, 1992-1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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4 Copyright (C) 1995, 1996 Ben Wing.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Mule 2.0, FSF 19.30. */
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24
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25 /* Authorship:
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26
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27 FSF: long ago.
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28 JWZ: some changes for Lemacs, long ago. (e.g. separate buffer
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29 list per frame.)
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30 Mly: a few changes for buffer-local vars, 19.8 or 19.9.
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31 Ben Wing: some changes and cleanups for Mule, 19.12.
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32 */
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33
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34 /* This file contains functions that work with buffer objects.
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35 Functions that manipulate a buffer's text, however, are not
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36 in this file:
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37
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38 1) The low-level functions that actually know about the
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39 implementation of a buffer's text are located in insdel.c.
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40 2) The higher-level (mostly Lisp) functions that manipulate a
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41 buffer's text are in editfns.c.
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42 3) The highest-level Lisp commands are in cmds.c.
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43
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44 However:
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45
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46 -- Functions that know about syntax tables (forward-word,
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47 scan-sexps, etc.) are in syntax.c, as are functions
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48 that manipulate syntax tables.
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49 -- Functions that know about case tables (upcase, downcase,
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50 etc.) are in casefiddle.c. Functions that manipulate
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51 case tables (case-table-p, set-case-table, etc.) are
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52 in casetab.c.
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53 -- Functions that do searching and replacing are in
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54 search.c. The low-level functions that implement
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55 regular expressions are in regex.c.
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56
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57 Also:
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58
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59 -- Some file and process functions (in fileio.c and process.c)
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60 copy text from or insert text into a buffer; they call
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61 low-level functions in insdel.c to do this.
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62 -- insdel.c calls low-level functions in undo.c and extents.c
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63 to record buffer modifications for undoing and to handle
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64 extent adjustment and extent-data creation and insertion.
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65
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66 */
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67
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68 #include <config.h>
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69 #include "lisp.h"
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70
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71 #include "buffer.h"
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70
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72 #include "chartab.h"
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0
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73 #include "commands.h"
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74 #include "elhash.h"
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75 #include "extents.h"
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76 #include "faces.h"
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77 #include "frame.h"
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78 #include "insdel.h"
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79 #include "process.h" /* for kill_buffer_processes */
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80 #ifdef REGION_CACHE_NEEDS_WORK
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81 #include "region-cache.h"
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82 #endif
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83 #include "syntax.h"
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84 #include "sysdep.h" /* for getwd */
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85 #include "window.h"
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86
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87 #include "sysfile.h"
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88
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89 struct buffer *current_buffer; /* the current buffer */
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90
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91 /* This structure holds the default values of the buffer-local variables
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92 defined with DEFVAR_BUFFER_LOCAL, that have special slots in each buffer.
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93 The default value occupies the same slot in this structure
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94 as an individual buffer's value occupies in that buffer.
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95 Setting the default value also goes through the alist of buffers
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96 and stores into each buffer that does not say it has a local value. */
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97 Lisp_Object Vbuffer_defaults;
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98
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99 /* This structure marks which slots in a buffer have corresponding
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272
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100 default values in Vbuffer_defaults.
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0
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101 Each such slot has a nonzero value in this structure.
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102 The value has only one nonzero bit.
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103
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104 When a buffer has its own local value for a slot,
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105 the bit for that slot (found in the same slot in this structure)
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106 is turned on in the buffer's local_var_flags slot.
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107
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108 If a slot in this structure is 0, then there is a DEFVAR_BUFFER_LOCAL
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109 for the slot, but there is no default value for it; the corresponding
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272
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110 slot in Vbuffer_defaults is not used except to initialize newly-created
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0
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111 buffers.
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112
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113 If a slot is -1, then there is a DEFVAR_BUFFER_LOCAL for it
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114 as well as a default value which is used to initialize newly-created
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115 buffers and as a reset-value when local-vars are killed.
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116
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183
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117 If a slot is -2, there is no DEFVAR_BUFFER_LOCAL for it.
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0
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118 (The slot is always local, but there's no lisp variable for it.)
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183
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119 The default value is only used to initialize newly-creation buffers.
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120
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0
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121 If a slot is -3, then there is no DEFVAR_BUFFER_LOCAL for it but
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122 there is a default which is used to initialize newly-creation
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272
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123 buffers and as a reset-value when local-vars are killed. */
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0
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124 struct buffer buffer_local_flags;
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125
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288
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126 /* This is the initial (startup) directory, as used for the *scratch* buffer.
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127 We're making this a global to make others aware of the startup directory.
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128 */
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129 char initial_directory[MAXPATHLEN+1];
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130
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0
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131 /* This structure holds the names of symbols whose values may be
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132 buffer-local. It is indexed and accessed in the same way as the above. */
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133 static Lisp_Object Vbuffer_local_symbols;
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134
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135 /* Alist of all buffer names vs the buffers. */
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136 /* This used to be a variable, but is no longer,
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137 to prevent lossage due to user rplac'ing this alist or its elements.
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138 Note that there is a per-frame copy of this as well; the frame slot
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139 and the global variable contain the same data, but possibly in different
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140 orders, so that the buffer ordering can be per-frame.
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141 */
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142 Lisp_Object Vbuffer_alist;
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143
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144 /* Functions to call before and after each text change. */
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145 Lisp_Object Qbefore_change_functions;
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146 Lisp_Object Qafter_change_functions;
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147 Lisp_Object Vbefore_change_functions;
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148 Lisp_Object Vafter_change_functions;
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149
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150 /* #### Obsolete, for compatibility */
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151 Lisp_Object Qbefore_change_function;
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152 Lisp_Object Qafter_change_function;
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153 Lisp_Object Vbefore_change_function;
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154 Lisp_Object Vafter_change_function;
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155
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156 #if 0 /* FSFmacs */
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157 Lisp_Object Vtransient_mark_mode;
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158 #endif
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159
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160 /* t means ignore all read-only text properties.
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161 A list means ignore such a property if its value is a member of the list.
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162 Any non-nil value means ignore buffer-read-only. */
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163 Lisp_Object Vinhibit_read_only;
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164
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165 /* List of functions to call that can query about killing a buffer.
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166 If any of these functions returns nil, we don't kill it. */
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167 Lisp_Object Vkill_buffer_query_functions;
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168
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169 /* Non-nil means delete a buffer's auto-save file when the buffer is saved. */
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146
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170 int delete_auto_save_files;
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0
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171
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172 Lisp_Object Qbuffer_live_p;
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173 Lisp_Object Qbuffer_or_string_p;
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174
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175 /* List of functions to call before changing an unmodified buffer. */
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176 Lisp_Object Vfirst_change_hook;
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177 Lisp_Object Qfirst_change_hook;
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178
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179 Lisp_Object Qfundamental_mode;
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180 Lisp_Object Qmode_class;
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181 Lisp_Object Qpermanent_local;
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182
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183 Lisp_Object Qprotected_field;
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184
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185 Lisp_Object QSFundamental; /* A string "Fundamental" */
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186 Lisp_Object QSscratch; /* "*scratch*" */
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187 Lisp_Object Qdefault_directory;
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188
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189 Lisp_Object Qkill_buffer_hook;
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190 Lisp_Object Qbuffer_file_name, Qbuffer_undo_list;
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191
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192 Lisp_Object Qrename_auto_save_file;
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193
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194 Lisp_Object Qget_file_buffer;
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195 Lisp_Object Qchange_major_mode_hook, Vchange_major_mode_hook;
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196
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197 Lisp_Object Qfind_file_compare_truenames;
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198
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199 Lisp_Object Qswitch_to_buffer;
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200
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201 /* Two thresholds controlling how much undo information to keep. */
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202 int undo_threshold;
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203 int undo_high_threshold;
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204
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205 int find_file_compare_truenames;
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206 int find_file_use_truenames;
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207
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208
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209 static void reset_buffer_local_variables (struct buffer *, int first_time);
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210 static void nuke_all_buffer_slots (struct buffer *b, Lisp_Object zap);
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211
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212 Lisp_Object
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213 make_buffer (struct buffer *buf)
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214 {
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215 Lisp_Object obj;
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216 XSETBUFFER (obj, buf);
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217 return obj;
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218 }
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219
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220 static Lisp_Object
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221 mark_buffer (Lisp_Object obj, void (*markobj) (Lisp_Object))
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222 {
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223 struct buffer *buf = XBUFFER (obj);
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224
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225 /* Truncate undo information. */
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226 buf->undo_list = truncate_undo_list (buf->undo_list,
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227 undo_threshold,
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228 undo_high_threshold);
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229
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230 #define MARKED_SLOT(x) ((markobj) (buf->x));
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231 #include "bufslots.h"
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232 #undef MARKED_SLOT
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233
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234 ((markobj) (buf->extent_info));
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373
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235 if (buf->text)
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236 ((markobj) (buf->text->line_number_cache));
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0
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237
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238 /* Don't mark normally through the children slot.
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272
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239 (Actually, in this case, it doesn't matter.) */
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207
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240 if (! EQ (buf->indirect_children, Qnull_pointer))
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241 mark_conses_in_list (buf->indirect_children);
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0
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242
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272
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243 return buf->base_buffer ? make_buffer (buf->base_buffer) : Qnil;
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0
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244 }
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245
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246 static void
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247 print_buffer (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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248 {
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249 struct buffer *b = XBUFFER (obj);
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250
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183
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251 if (print_readably)
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0
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252 {
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253 if (!BUFFER_LIVE_P (b))
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254 error ("printing unreadable object #<killed buffer>");
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255 else
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183
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256 error ("printing unreadable object #<buffer %s>",
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14
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257 XSTRING_DATA (b->name));
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0
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258 }
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259 else if (!BUFFER_LIVE_P (b))
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260 write_c_string ("#<killed buffer>", printcharfun);
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261 else if (escapeflag)
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262 {
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263 write_c_string ("#<buffer ", printcharfun);
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264 print_internal (b->name, printcharfun, 1);
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265 write_c_string (">", printcharfun);
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266 }
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267 else
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268 {
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269 print_internal (b->name, printcharfun, 0);
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270 }
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271 }
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183
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272
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272
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273 /* We do not need a finalize method to handle a buffer's children list
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274 because all buffers have `kill-buffer' applied to them before
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275 they disappear, and the children removal happens then. */
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276 DEFINE_LRECORD_IMPLEMENTATION ("buffer", buffer,
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277 mark_buffer, print_buffer, 0, 0, 0,
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278 struct buffer);
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0
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279
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20
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280 DEFUN ("bufferp", Fbufferp, 1, 1, 0, /*
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272
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281 Return t if OBJECT is an editor buffer.
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20
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282 */
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283 (object))
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0
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284 {
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272
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285 return BUFFERP (object) ? Qt : Qnil;
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0
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286 }
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287
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20
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288 DEFUN ("buffer-live-p", Fbuffer_live_p, 1, 1, 0, /*
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272
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289 Return t if OBJECT is an editor buffer that has not been deleted.
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20
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290 */
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291 (object))
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0
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292 {
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272
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293 return BUFFERP (object) && BUFFER_LIVE_P (XBUFFER (object)) ? Qt : Qnil;
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0
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294 }
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295
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296 static void
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297 nsberror (Lisp_Object spec)
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298 {
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299 if (STRINGP (spec))
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14
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300 error ("No buffer named %s", XSTRING_DATA (spec));
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0
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301 signal_simple_error ("Invalid buffer argument", spec);
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302 }
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303
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20
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304 DEFUN ("buffer-list", Fbuffer_list, 0, 1, 0, /*
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0
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305 Return a list of all existing live buffers.
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306 The order is specific to the selected frame; if the optional FRAME
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307 argument is provided, the ordering for that frame is returned instead.
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308 If the FRAME argument is t, then the global (non-frame) ordering is
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309 returned instead.
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20
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310 */
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311 (frame))
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0
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312 {
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313 Lisp_Object list;
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314 if (EQ (frame, Qt))
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315 list = Vbuffer_alist;
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316 else
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317 list = decode_frame (frame)->buffer_alist;
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318 return Fmapcar (Qcdr, list);
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319 }
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320
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321 Lisp_Object
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322 get_buffer (Lisp_Object name, int error_if_deleted_or_does_not_exist)
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323 {
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324 if (BUFFERP (name))
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325 {
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326 if (!BUFFER_LIVE_P (XBUFFER (name)))
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327 {
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328 if (error_if_deleted_or_does_not_exist)
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329 nsberror (name);
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183
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330 return Qnil;
|
|
0
|
331 }
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332 return name;
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333 }
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334 else
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|
335 {
|
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272
|
336 Lisp_Object buf;
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0
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337 struct gcpro gcpro1;
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338
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|
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339 CHECK_STRING (name);
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340 name = LISP_GETTEXT (name); /* I18N3 */
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|
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341 GCPRO1 (name);
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342 buf = Fcdr (Fassoc (name, Vbuffer_alist));
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343 UNGCPRO;
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344 if (NILP (buf) && error_if_deleted_or_does_not_exist)
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345 nsberror (name);
|
|
183
|
346 return buf;
|
|
0
|
347 }
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|
|
348 }
|
|
|
349
|
|
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350 struct buffer *
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351 decode_buffer (Lisp_Object buffer, int allow_string)
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|
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352 {
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|
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353 if (NILP (buffer))
|
|
183
|
354 return current_buffer;
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|
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355
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|
|
356 if (allow_string && STRINGP (buffer))
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|
|
357 return XBUFFER (get_buffer (buffer, 1));
|
|
0
|
358
|
|
|
359 CHECK_LIVE_BUFFER (buffer);
|
|
|
360 return XBUFFER (buffer);
|
|
|
361 }
|
|
|
362
|
|
20
|
363 DEFUN ("decode-buffer", Fdecode_buffer, 1, 1, 0, /*
|
|
0
|
364 Validate BUFFER or if BUFFER is nil, return the current buffer.
|
|
|
365 If BUFFER is a valid buffer or a string representing a valid buffer,
|
|
|
366 the corresponding buffer object will be returned. Otherwise an error
|
|
|
367 will be signaled.
|
|
20
|
368 */
|
|
|
369 (buffer))
|
|
0
|
370 {
|
|
|
371 struct buffer *b = decode_buffer (buffer, 1);
|
|
|
372 XSETBUFFER (buffer, b);
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|
|
373 return buffer;
|
|
|
374 }
|
|
|
375
|
|
|
376 #if 0 /* FSFmacs */
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|
|
377 /* bleagh!!! */
|
|
|
378 /* Like Fassoc, but use Fstring_equal to compare
|
|
|
379 (which ignores text properties),
|
|
|
380 and don't ever QUIT. */
|
|
|
381
|
|
|
382 static Lisp_Object
|
|
203
|
383 assoc_ignore_text_properties (REGISTER Lisp_Object key, Lisp_Object list)
|
|
0
|
384 {
|
|
203
|
385 REGISTER Lisp_Object tail;
|
|
0
|
386 for (tail = list; !NILP (tail); tail = Fcdr (tail))
|
|
|
387 {
|
|
203
|
388 REGISTER Lisp_Object elt, tem;
|
|
0
|
389 elt = Fcar (tail);
|
|
|
390 tem = Fstring_equal (Fcar (elt), key);
|
|
|
391 if (!NILP (tem))
|
|
|
392 return elt;
|
|
|
393 }
|
|
|
394 return Qnil;
|
|
|
395 }
|
|
|
396
|
|
183
|
397 #endif /* FSFmacs */
|
|
0
|
398
|
|
20
|
399 DEFUN ("get-buffer", Fget_buffer, 1, 1, 0, /*
|
|
0
|
400 Return the buffer named NAME (a string).
|
|
|
401 If there is no live buffer named NAME, return nil.
|
|
|
402 NAME may also be a buffer; if so, the value is that buffer.
|
|
20
|
403 */
|
|
|
404 (name))
|
|
0
|
405 {
|
|
|
406 #ifdef I18N3
|
|
|
407 /* #### Doc string should indicate that the buffer name will get
|
|
|
408 translated. */
|
|
|
409 #endif
|
|
|
410
|
|
|
411 /* #### This might return a dead buffer. This is gross. This is
|
|
|
412 called FSF compatibility. */
|
|
|
413 if (BUFFERP (name))
|
|
|
414 return name;
|
|
183
|
415 return get_buffer (name, 0);
|
|
0
|
416 /* FSFmacs 19.29 calls assoc_ignore_text_properties() here.
|
|
|
417 Bleagh!! */
|
|
|
418 }
|
|
|
419
|
|
|
420
|
|
20
|
421 DEFUN ("get-file-buffer", Fget_file_buffer, 1, 1, 0, /*
|
|
0
|
422 Return the buffer visiting file FILENAME (a string).
|
|
|
423 The buffer's `buffer-file-name' must match exactly the expansion of FILENAME.
|
|
|
424 If there is no such live buffer, return nil.
|
|
|
425
|
|
|
426 Normally, the comparison is done by canonicalizing FILENAME (using
|
|
|
427 `expand-file-name') and comparing that to the value of `buffer-file-name'
|
|
|
428 for each existing buffer. However, If `find-file-compare-truenames' is
|
|
|
429 non-nil, FILENAME will be converted to its truename and the search will be
|
|
|
430 done on each buffer's value of `buffer-file-truename' instead of
|
|
|
431 `buffer-file-name'. Otherwise, if `find-file-use-truenames' is non-nil,
|
|
|
432 FILENAME will be converted to its truename and used for searching, but
|
|
|
433 the search will still be done on `buffer-file-name'.
|
|
20
|
434 */
|
|
|
435 (filename))
|
|
0
|
436 {
|
|
371
|
437 /* This function can GC. GC checked 1997.04.06. */
|
|
0
|
438 REGISTER Lisp_Object tail, buf, tem;
|
|
|
439 struct gcpro gcpro1;
|
|
|
440
|
|
|
441 #ifdef I18N3
|
|
|
442 /* DO NOT translate the filename. */
|
|
|
443 #endif
|
|
|
444 GCPRO1 (filename);
|
|
|
445 CHECK_STRING (filename);
|
|
|
446 filename = Fexpand_file_name (filename, Qnil);
|
|
|
447 {
|
|
|
448 /* If the file name has special constructs in it,
|
|
|
449 call the corresponding file handler. */
|
|
|
450 Lisp_Object handler = Ffind_file_name_handler (filename, Qget_file_buffer);
|
|
|
451 if (!NILP (handler))
|
|
|
452 {
|
|
|
453 UNGCPRO;
|
|
|
454 return call2 (handler, Qget_file_buffer, filename);
|
|
|
455 }
|
|
|
456 }
|
|
|
457 UNGCPRO;
|
|
|
458
|
|
|
459 if (find_file_compare_truenames || find_file_use_truenames)
|
|
|
460 {
|
|
|
461 struct gcpro ngcpro1, ngcpro2, ngcpro3;
|
|
|
462 Lisp_Object fn = Qnil;
|
|
|
463 Lisp_Object dn = Qnil;
|
|
|
464
|
|
|
465 NGCPRO3 (fn, dn, filename);
|
|
|
466 fn = Ffile_truename (filename, Qnil);
|
|
|
467 if (NILP (fn))
|
|
|
468 {
|
|
|
469 dn = Ffile_name_directory (filename);
|
|
|
470 fn = Ffile_truename (dn, Qnil);
|
|
|
471 if (! NILP (fn)) dn = fn;
|
|
371
|
472 fn = Fexpand_file_name (Ffile_name_nondirectory (filename),
|
|
|
473 dn);
|
|
0
|
474 }
|
|
|
475 filename = fn;
|
|
|
476 NUNGCPRO;
|
|
|
477 }
|
|
|
478
|
|
219
|
479 LIST_LOOP (tail, Vbuffer_alist)
|
|
0
|
480 {
|
|
|
481 buf = Fcdr (XCAR (tail));
|
|
|
482 if (!BUFFERP (buf)) continue;
|
|
|
483 if (!STRINGP (XBUFFER (buf)->filename)) continue;
|
|
|
484 tem = Fstring_equal (filename,
|
|
|
485 (find_file_compare_truenames
|
|
|
486 ? XBUFFER (buf)->file_truename
|
|
|
487 : XBUFFER (buf)->filename));
|
|
|
488 if (!NILP (tem))
|
|
|
489 return buf;
|
|
|
490 }
|
|
|
491 return Qnil;
|
|
|
492 }
|
|
|
493
|
|
|
494
|
|
|
495 static void
|
|
|
496 push_buffer_alist (Lisp_Object name, Lisp_Object buf)
|
|
|
497 {
|
|
|
498 Lisp_Object cons = Fcons (name, buf);
|
|
|
499 Lisp_Object frmcons, devcons, concons;
|
|
|
500
|
|
|
501 Vbuffer_alist = nconc2 (Vbuffer_alist, Fcons (cons, Qnil));
|
|
|
502 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
503 {
|
|
|
504 struct frame *f;
|
|
|
505 f = XFRAME (XCAR (frmcons));
|
|
|
506 f->buffer_alist = nconc2 (f->buffer_alist, Fcons (cons, Qnil));
|
|
|
507 }
|
|
|
508 }
|
|
|
509
|
|
|
510 static void
|
|
|
511 delete_from_buffer_alist (Lisp_Object buf)
|
|
|
512 {
|
|
|
513 Lisp_Object cons = Frassq (buf, Vbuffer_alist);
|
|
|
514 Lisp_Object frmcons, devcons, concons;
|
|
|
515 if (NILP (cons))
|
|
|
516 return; /* abort() ? */
|
|
|
517 Vbuffer_alist = delq_no_quit (cons, Vbuffer_alist);
|
|
|
518
|
|
|
519 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
520 {
|
|
|
521 struct frame *f;
|
|
|
522 f = XFRAME (XCAR (frmcons));
|
|
|
523 f->buffer_alist = delq_no_quit (cons, f->buffer_alist);
|
|
|
524 }
|
|
|
525 }
|
|
|
526
|
|
|
527 Lisp_Object
|
|
|
528 get_truename_buffer (REGISTER Lisp_Object filename)
|
|
|
529 {
|
|
|
530 /* FSFmacs has its own code here and doesn't call get-file-buffer.
|
|
|
531 That's because their equivalent of find-file-compare-truenames
|
|
|
532 (find-file-existing-other-name) isn't looked at in get-file-buffer.
|
|
|
533 This way is more correct. */
|
|
|
534 int count = specpdl_depth ();
|
|
|
535
|
|
|
536 specbind (Qfind_file_compare_truenames, Qt);
|
|
|
537 return unbind_to (count, Fget_file_buffer (filename));
|
|
|
538 }
|
|
|
539
|
|
|
540 static struct buffer *
|
|
|
541 allocate_buffer (void)
|
|
|
542 {
|
|
185
|
543 struct buffer *b = alloc_lcrecord_type (struct buffer, lrecord_buffer);
|
|
0
|
544
|
|
|
545 copy_lcrecord (b, XBUFFER (Vbuffer_defaults));
|
|
|
546
|
|
|
547 return b;
|
|
|
548 }
|
|
|
549
|
|
|
550 static Lisp_Object
|
|
|
551 finish_init_buffer (struct buffer *b, Lisp_Object name)
|
|
|
552 {
|
|
|
553 Lisp_Object buf;
|
|
|
554
|
|
|
555 XSETBUFFER (buf, b);
|
|
|
556
|
|
|
557 name = Fcopy_sequence (name);
|
|
|
558 /* #### This really does not need to be called. We already
|
|
|
559 initialized the buffer-local variables in allocate_buffer().
|
|
|
560 local_var_alist is set to Qnil at the same point, in
|
|
|
561 nuke_all_buffer_slots(). */
|
|
|
562 reset_buffer_local_variables (b, 1);
|
|
|
563 b->directory = ((current_buffer) ? current_buffer->directory : Qnil);
|
|
|
564
|
|
|
565 b->last_window_start = 1;
|
|
|
566
|
|
|
567 b->name = name;
|
|
|
568 if (string_byte (XSTRING (name), 0) != ' ')
|
|
|
569 b->undo_list = Qnil;
|
|
|
570 else
|
|
|
571 b->undo_list = Qt;
|
|
|
572
|
|
|
573 /* initialize the extent list */
|
|
|
574 init_buffer_extents (b);
|
|
|
575
|
|
|
576 /* Put this in the alist of all live buffers. */
|
|
|
577 push_buffer_alist (name, buf);
|
|
|
578
|
|
|
579 init_buffer_markers (b);
|
|
|
580
|
|
|
581 b->generated_modeline_string = Fmake_string (make_int (84), make_int (' '));
|
|
|
582 b->modeline_extent_table = make_lisp_hashtable (20, HASHTABLE_KEY_WEAK,
|
|
|
583 HASHTABLE_EQ);
|
|
|
584
|
|
|
585 return buf;
|
|
|
586 }
|
|
|
587
|
|
20
|
588 DEFUN ("get-buffer-create", Fget_buffer_create, 1, 1, 0, /*
|
|
0
|
589 Return the buffer named NAME, or create such a buffer and return it.
|
|
|
590 A new buffer is created if there is no live buffer named NAME.
|
|
|
591 If NAME starts with a space, the new buffer does not keep undo information.
|
|
|
592 If NAME is a buffer instead of a string, then it is the value returned.
|
|
|
593 The value is never nil.
|
|
20
|
594 */
|
|
|
595 (name))
|
|
0
|
596 {
|
|
|
597 /* This function can GC */
|
|
|
598 Lisp_Object buf;
|
|
|
599 REGISTER struct buffer *b;
|
|
|
600
|
|
|
601 #ifdef I18N3
|
|
|
602 /* #### Doc string should indicate that the buffer name will get
|
|
|
603 translated. */
|
|
|
604 #endif
|
|
|
605
|
|
|
606 name = LISP_GETTEXT (name);
|
|
|
607 buf = Fget_buffer (name);
|
|
|
608 if (!NILP (buf))
|
|
|
609 return buf;
|
|
|
610
|
|
14
|
611 if (XSTRING_LENGTH (name) == 0)
|
|
0
|
612 error ("Empty string for buffer name is not allowed");
|
|
|
613
|
|
|
614 b = allocate_buffer ();
|
|
|
615
|
|
|
616 b->text = &b->own_text;
|
|
|
617 b->base_buffer = 0;
|
|
|
618 b->indirect_children = Qnil;
|
|
373
|
619 init_buffer_text (b);
|
|
0
|
620
|
|
|
621 return finish_init_buffer (b, name);
|
|
|
622 }
|
|
|
623
|
|
20
|
624 DEFUN ("make-indirect-buffer", Fmake_indirect_buffer, 2, 2,
|
|
|
625 "bMake indirect buffer (to buffer): \nBName of indirect buffer: ", /*
|
|
0
|
626 Create and return an indirect buffer for buffer BASE, named NAME.
|
|
|
627 BASE should be an existing buffer (or buffer name).
|
|
|
628 NAME should be a string which is not the name of an existing buffer.
|
|
|
629 If BASE is an indirect buffer itself, the base buffer for that buffer
|
|
|
630 is made the base buffer for the newly created buffer. (Thus, there will
|
|
|
631 never be indirect buffers whose base buffers are themselves indirect.)
|
|
20
|
632 */
|
|
|
633 (base_buffer, name))
|
|
0
|
634 {
|
|
373
|
635 /* This function can GC */
|
|
|
636
|
|
|
637 /* #### The above interactive specification is totally bogus,
|
|
|
638 because it offers an existing buffer as default answer to the
|
|
|
639 second question. However, the second argument may not BE an
|
|
|
640 existing buffer! */
|
|
|
641 struct buffer *b;
|
|
|
642
|
|
|
643 base_buffer = get_buffer (base_buffer, 1);
|
|
0
|
644
|
|
70
|
645 #ifdef I18N3
|
|
|
646 /* #### Doc string should indicate that the buffer name will get
|
|
|
647 translated. */
|
|
|
648 #endif
|
|
373
|
649 CHECK_STRING (name);
|
|
0
|
650 name = LISP_GETTEXT (name);
|
|
373
|
651 if (!NILP (Fget_buffer (name)))
|
|
|
652 signal_simple_error ("Buffer name already in use", name);
|
|
14
|
653 if (XSTRING_LENGTH (name) == 0)
|
|
0
|
654 error ("Empty string for buffer name is not allowed");
|
|
|
655
|
|
|
656 b = allocate_buffer ();
|
|
|
657
|
|
373
|
658 b->base_buffer = BUFFER_BASE_BUFFER (XBUFFER (base_buffer));
|
|
0
|
659
|
|
|
660 /* Use the base buffer's text object. */
|
|
|
661 b->text = b->base_buffer->text;
|
|
|
662 b->indirect_children = Qnil;
|
|
|
663 b->base_buffer->indirect_children =
|
|
373
|
664 Fcons (make_buffer (b), b->base_buffer->indirect_children);
|
|
|
665 init_buffer_text (b);
|
|
0
|
666
|
|
|
667 return finish_init_buffer (b, name);
|
|
140
|
668 }
|
|
0
|
669
|
|
239
|
670
|
|
0
|
671
|
|
|
672 static void
|
|
|
673 reset_buffer_local_variables (struct buffer *b, int first_time)
|
|
|
674 {
|
|
|
675 struct buffer *def = XBUFFER (Vbuffer_defaults);
|
|
|
676
|
|
|
677 b->local_var_flags = 0;
|
|
|
678 /* For each slot that has a default value,
|
|
|
679 copy that into the slot. */
|
|
|
680 #define MARKED_SLOT(slot) \
|
|
|
681 { int mask = XINT (buffer_local_flags.slot); \
|
|
|
682 if ((mask > 0 || mask == -1 || mask == -3) \
|
|
|
683 && (first_time \
|
|
|
684 || NILP (Fget (XBUFFER (Vbuffer_local_symbols)->slot, \
|
|
|
685 Qpermanent_local, Qnil)))) \
|
|
|
686 b->slot = def->slot; \
|
|
|
687 }
|
|
|
688 #include "bufslots.h"
|
|
|
689 #undef MARKED_SLOT
|
|
239
|
690 #if 0
|
|
|
691 #define STRING256_P(obj) \
|
|
272
|
692 (STRINGP (obj) && XSTRING_CHAR_LENGTH (obj) == 256)
|
|
239
|
693 /* If the standard case table has been altered and invalidated,
|
|
|
694 fix up its insides first. */
|
|
|
695 if (!(STRING256_P(Vascii_upcase_table) &&
|
|
|
696 STRING256_P(Vascii_canon_table) &&
|
|
|
697 STRING256_P(Vascii_eqv_table)))
|
|
|
698 {
|
|
|
699 Fset_standard_case_table (Vascii_downcase_table);
|
|
|
700 }
|
|
|
701 b->downcase_table = Vascii_downcase_table;
|
|
|
702 b->upcase_table = Vascii_upcase_table;
|
|
|
703 b->case_canon_table = Vascii_canon_table;
|
|
|
704 b->case_eqv_table = Vascii_eqv_table;
|
|
|
705 #ifdef MULE
|
|
|
706 b->mirror_downcase_table = Vmirror_ascii_downcase_table;
|
|
|
707 b->mirror_upcase_table = Vmirror_ascii_upcase_table;
|
|
|
708 b->mirror_case_canon_table = Vmirror_ascii_canon_table;
|
|
|
709 b->mirror_case_eqv_table = Vmirror_ascii_eqv_table;
|
|
|
710 #endif
|
|
|
711 #endif
|
|
0
|
712 }
|
|
|
713
|
|
|
714
|
|
|
715 /* We split this away from generate-new-buffer, because rename-buffer
|
|
|
716 and set-visited-file-name ought to be able to use this to really
|
|
|
717 rename the buffer properly. */
|
|
|
718
|
|
20
|
719 DEFUN ("generate-new-buffer-name", Fgenerate_new_buffer_name, 1, 2, 0, /*
|
|
0
|
720 Return a string that is the name of no existing buffer based on NAME.
|
|
|
721 If there is no live buffer named NAME, then return NAME.
|
|
|
722 Otherwise modify name by appending `<NUMBER>', incrementing NUMBER
|
|
|
723 until an unused name is found, and then return that name.
|
|
|
724 Optional second argument IGNORE specifies a name that is okay to use
|
|
|
725 \(if it is in the sequence to be tried)
|
|
|
726 even if a buffer with that name exists.
|
|
20
|
727 */
|
|
|
728 (name, ignore))
|
|
0
|
729 {
|
|
|
730 REGISTER Lisp_Object gentemp, tem;
|
|
|
731 int count;
|
|
|
732 char number[10];
|
|
|
733
|
|
|
734 CHECK_STRING (name);
|
|
|
735
|
|
|
736 name = LISP_GETTEXT (name);
|
|
|
737 #ifdef I18N3
|
|
|
738 /* #### Doc string should indicate that the buffer name will get
|
|
|
739 translated. */
|
|
|
740 #endif
|
|
|
741
|
|
|
742 tem = Fget_buffer (name);
|
|
|
743 if (NILP (tem))
|
|
183
|
744 return name;
|
|
0
|
745
|
|
|
746 count = 1;
|
|
|
747 while (1)
|
|
|
748 {
|
|
|
749 sprintf (number, "<%d>", ++count);
|
|
|
750 gentemp = concat2 (name, build_string (number));
|
|
|
751 if (!NILP (ignore))
|
|
|
752 {
|
|
|
753 tem = Fstring_equal (gentemp, ignore);
|
|
|
754 if (!NILP (tem))
|
|
|
755 return gentemp;
|
|
|
756 }
|
|
|
757 tem = Fget_buffer (gentemp);
|
|
|
758 if (NILP (tem))
|
|
183
|
759 return gentemp;
|
|
0
|
760 }
|
|
|
761 }
|
|
|
762
|
|
|
763
|
|
20
|
764 DEFUN ("buffer-name", Fbuffer_name, 0, 1, 0, /*
|
|
0
|
765 Return the name of BUFFER, as a string.
|
|
|
766 With no argument or nil as argument, return the name of the current buffer.
|
|
20
|
767 */
|
|
|
768 (buffer))
|
|
0
|
769 {
|
|
|
770 /* For compatibility, we allow a dead buffer here.
|
|
|
771 Earlier versions of Emacs didn't provide buffer-live-p. */
|
|
|
772 if (NILP (buffer))
|
|
|
773 return current_buffer->name;
|
|
|
774 CHECK_BUFFER (buffer);
|
|
|
775 return XBUFFER (buffer)->name;
|
|
|
776 }
|
|
|
777
|
|
20
|
778 DEFUN ("buffer-file-name", Fbuffer_file_name, 0, 1, 0, /*
|
|
0
|
779 Return name of file BUFFER is visiting, or nil if none.
|
|
|
780 No argument or nil as argument means use the current buffer.
|
|
20
|
781 */
|
|
|
782 (buffer))
|
|
0
|
783 {
|
|
|
784 /* For compatibility, we allow a dead buffer here. Yuck! */
|
|
|
785 if (NILP (buffer))
|
|
|
786 return current_buffer->filename;
|
|
|
787 CHECK_BUFFER (buffer);
|
|
|
788 return XBUFFER (buffer)->filename;
|
|
|
789 }
|
|
|
790
|
|
20
|
791 DEFUN ("buffer-base-buffer", Fbuffer_base_buffer, 0, 1, 0, /*
|
|
0
|
792 Return the base buffer of indirect buffer BUFFER.
|
|
|
793 If BUFFER is not indirect, return nil.
|
|
20
|
794 */
|
|
|
795 (buffer))
|
|
0
|
796 {
|
|
|
797 struct buffer *buf = decode_buffer (buffer, 0);
|
|
272
|
798
|
|
|
799 return buf->base_buffer ? make_buffer (buf->base_buffer) : Qnil;
|
|
0
|
800 }
|
|
|
801
|
|
20
|
802 DEFUN ("buffer-indirect-children", Fbuffer_indirect_children, 0, 1, 0, /*
|
|
0
|
803 Return a list of all indirect buffers whose base buffer is BUFFER.
|
|
|
804 If BUFFER is indirect, the return value will always be nil; see
|
|
|
805 `make-indirect-buffer'.
|
|
20
|
806 */
|
|
|
807 (buffer))
|
|
0
|
808 {
|
|
|
809 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
810
|
|
|
811 return Fcopy_sequence (buf->indirect_children);
|
|
|
812 }
|
|
|
813
|
|
20
|
814 DEFUN ("buffer-local-variables", Fbuffer_local_variables, 0, 1, 0, /*
|
|
0
|
815 Return an alist of variables that are buffer-local in BUFFER.
|
|
|
816 Most elements look like (SYMBOL . VALUE), describing one variable.
|
|
|
817 For a symbol that is locally unbound, just the symbol appears in the value.
|
|
|
818 Note that storing new VALUEs in these elements doesn't change the variables.
|
|
|
819 No argument or nil as argument means use current buffer as BUFFER.
|
|
20
|
820 */
|
|
|
821 (buffer))
|
|
0
|
822 {
|
|
|
823 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
824 Lisp_Object result = Qnil;
|
|
|
825
|
|
|
826 {
|
|
|
827 Lisp_Object tail;
|
|
|
828 for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail))
|
|
|
829 {
|
|
|
830 Lisp_Object elt = XCAR (tail);
|
|
|
831 /* Reference each variable in the alist in buf.
|
|
|
832 If inquiring about the current buffer, this gets the current values,
|
|
|
833 so store them into the alist so the alist is up to date.
|
|
|
834 If inquiring about some other buffer, this swaps out any values
|
|
|
835 for that buffer, making the alist up to date automatically. */
|
|
|
836 Lisp_Object val = find_symbol_value (XCAR (elt));
|
|
|
837 /* Use the current buffer value only if buf is the current buffer. */
|
|
|
838 if (buf != current_buffer)
|
|
|
839 val = XCDR (elt);
|
|
|
840
|
|
|
841 /* If symbol is unbound, put just the symbol in the list. */
|
|
|
842 if (UNBOUNDP (val))
|
|
|
843 result = Fcons (XCAR (elt), result);
|
|
|
844 /* Otherwise, put (symbol . value) in the list. */
|
|
|
845 else
|
|
|
846 result = Fcons (Fcons (XCAR (elt), val), result);
|
|
|
847 }
|
|
|
848 }
|
|
|
849
|
|
|
850 /* Add on all the variables stored in special slots. */
|
|
|
851 {
|
|
|
852 struct buffer *syms = XBUFFER (Vbuffer_local_symbols);
|
|
|
853 #define MARKED_SLOT(slot) \
|
|
|
854 { int mask = XINT (buffer_local_flags.slot); \
|
|
|
855 if (mask == 0 || mask == -1 \
|
|
|
856 || ((mask > 0) && (buf->local_var_flags & mask))) \
|
|
|
857 result = Fcons (Fcons (syms->slot, buf->slot), result); \
|
|
|
858 }
|
|
|
859 #include "bufslots.h"
|
|
|
860 #undef MARKED_SLOT
|
|
|
861 }
|
|
183
|
862 return result;
|
|
0
|
863 }
|
|
|
864
|
|
20
|
865 DEFUN ("buffer-dedicated-frame", Fbuffer_dedicated_frame, 0, 1, 0, /*
|
|
0
|
866 Return the frame dedicated to this BUFFER, or nil if there is none.
|
|
|
867 No argument or nil as argument means use current buffer as BUFFER.
|
|
20
|
868 */
|
|
|
869 (buffer))
|
|
0
|
870 {
|
|
|
871 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
872
|
|
|
873 /* XEmacs addition: if the frame is dead, silently make it go away. */
|
|
|
874 if (!NILP (buf->dedicated_frame) &&
|
|
|
875 !FRAME_LIVE_P (XFRAME (buf->dedicated_frame)))
|
|
|
876 buf->dedicated_frame = Qnil;
|
|
183
|
877
|
|
0
|
878 return buf->dedicated_frame;
|
|
|
879 }
|
|
|
880
|
|
20
|
881 DEFUN ("set-buffer-dedicated-frame", Fset_buffer_dedicated_frame, 2, 2, 0, /*
|
|
0
|
882 For this BUFFER, set the FRAME dedicated to it.
|
|
|
883 FRAME must be a frame or nil.
|
|
20
|
884 */
|
|
|
885 (buffer, frame))
|
|
0
|
886 {
|
|
|
887 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
888
|
|
|
889 if (!NILP (frame))
|
|
|
890 CHECK_LIVE_FRAME (frame); /* XEmacs change */
|
|
|
891
|
|
|
892 return buf->dedicated_frame = frame;
|
|
|
893 }
|
|
|
894
|
|
|
895
|
|
|
896
|
|
20
|
897 DEFUN ("buffer-modified-p", Fbuffer_modified_p, 0, 1, 0, /*
|
|
0
|
898 Return t if BUFFER was modified since its file was last read or saved.
|
|
|
899 No argument or nil as argument means use current buffer as BUFFER.
|
|
20
|
900 */
|
|
|
901 (buffer))
|
|
0
|
902 {
|
|
|
903 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
904
|
|
|
905 return BUF_SAVE_MODIFF (buf) < BUF_MODIFF (buf) ? Qt : Qnil;
|
|
|
906 }
|
|
|
907
|
|
20
|
908 DEFUN ("set-buffer-modified-p", Fset_buffer_modified_p, 1, 2, 0, /*
|
|
0
|
909 Mark BUFFER as modified or unmodified according to FLAG.
|
|
|
910 A non-nil FLAG means mark the buffer modified. No argument or nil
|
|
|
911 as BUFFER means use current buffer.
|
|
20
|
912 */
|
|
|
913 (flag, buffer))
|
|
0
|
914 {
|
|
|
915 /* This function can GC */
|
|
|
916 struct buffer *buf = decode_buffer (buffer, 0);
|
|
|
917
|
|
|
918 #ifdef CLASH_DETECTION
|
|
|
919 /* If buffer becoming modified, lock the file.
|
|
|
920 If buffer becoming unmodified, unlock the file. */
|
|
|
921
|
|
175
|
922 Lisp_Object fn = buf->file_truename;
|
|
0
|
923 if (!NILP (fn))
|
|
|
924 {
|
|
|
925 int already = BUF_SAVE_MODIFF (buf) < BUF_MODIFF (buf);
|
|
|
926 if (already == NILP (flag))
|
|
|
927 {
|
|
|
928 int count = specpdl_depth ();
|
|
|
929 /* lock_file() and unlock_file() currently use current_buffer */
|
|
114
|
930 /* #### - dmoore, what if lock_file or unlock_file kill
|
|
|
931 the current buffer? */
|
|
0
|
932 record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
|
|
|
933 set_buffer_internal (buf);
|
|
|
934 if (!already && !NILP (flag))
|
|
|
935 lock_file (fn);
|
|
|
936 else if (already && NILP (flag))
|
|
|
937 unlock_file (fn);
|
|
|
938 unbind_to (count, Qnil);
|
|
|
939 }
|
|
|
940 }
|
|
167
|
941 #endif /* CLASH_DETECTION */
|
|
0
|
942
|
|
|
943 /* This is often called when the buffer contents are altered but we
|
|
|
944 don't want to treat the changes that way (e.g. selective
|
|
|
945 display). We still need to make sure redisplay realizes that the
|
|
|
946 contents have potentially altered and it needs to do some
|
|
|
947 work. */
|
|
110
|
948 buf = decode_buffer(buffer, 0);
|
|
0
|
949 BUF_MODIFF (buf)++;
|
|
|
950 BUF_SAVE_MODIFF (buf) = NILP (flag) ? BUF_MODIFF (buf) : 0;
|
|
|
951 MARK_MODELINE_CHANGED;
|
|
|
952
|
|
|
953 return flag;
|
|
|
954 }
|
|
|
955
|
|
20
|
956 DEFUN ("buffer-modified-tick", Fbuffer_modified_tick, 0, 1, 0, /*
|
|
0
|
957 Return BUFFER's tick counter, incremented for each change in text.
|
|
|
958 Each buffer has a tick counter which is incremented each time the text in
|
|
|
959 that buffer is changed. It wraps around occasionally.
|
|
|
960 No argument or nil as argument means use current buffer as BUFFER.
|
|
20
|
961 */
|
|
|
962 (buffer))
|
|
0
|
963 {
|
|
|
964 struct buffer *buf = decode_buffer (buffer, 0);
|
|
183
|
965
|
|
0
|
966 return make_int (BUF_MODIFF (buf));
|
|
|
967 }
|
|
|
968
|
|
20
|
969 DEFUN ("rename-buffer", Frename_buffer, 1, 2,
|
|
|
970 "sRename buffer (to new name): \nP", /*
|
|
0
|
971 Change current buffer's name to NEWNAME (a string).
|
|
|
972 If second arg UNIQUE is nil or omitted, it is an error if a
|
|
|
973 buffer named NEWNAME already exists.
|
|
|
974 If UNIQUE is non-nil, come up with a new name using
|
|
|
975 `generate-new-buffer-name'.
|
|
|
976 Interactively, one can set UNIQUE with a prefix argument.
|
|
|
977 Returns the name we actually gave the buffer.
|
|
|
978 This does not change the name of the visited file (if any).
|
|
20
|
979 */
|
|
|
980 (newname, unique))
|
|
0
|
981 {
|
|
|
982 /* This function can GC */
|
|
|
983 Lisp_Object tem, buf;
|
|
|
984
|
|
|
985 #ifdef I18N3
|
|
|
986 /* #### Doc string should indicate that the buffer name will get
|
|
|
987 translated. */
|
|
|
988 #endif
|
|
|
989 CHECK_STRING (newname);
|
|
|
990 newname = LISP_GETTEXT (newname);
|
|
|
991
|
|
14
|
992 if (XSTRING_LENGTH (newname) == 0)
|
|
0
|
993 error ("Empty string is invalid as a buffer name");
|
|
|
994
|
|
|
995 tem = Fget_buffer (newname);
|
|
|
996 /* Don't short-circuit if UNIQUE is t. That is a useful way to rename
|
|
|
997 the buffer automatically so you can create another with the original name.
|
|
|
998 It makes UNIQUE equivalent to
|
|
|
999 (rename-buffer (generate-new-buffer-name NEWNAME)). */
|
|
|
1000 /* XEmacs change: added check for nil */
|
|
|
1001 if (NILP (unique) && !NILP (tem) && XBUFFER (tem) == current_buffer)
|
|
|
1002 return current_buffer->name;
|
|
|
1003 if (!NILP (tem))
|
|
|
1004 {
|
|
|
1005 if (!NILP (unique))
|
|
|
1006 newname = Fgenerate_new_buffer_name (newname, current_buffer->name);
|
|
|
1007 else
|
|
|
1008 error ("Buffer name \"%s\" is in use",
|
|
14
|
1009 XSTRING_DATA (newname));
|
|
0
|
1010 }
|
|
|
1011
|
|
|
1012 current_buffer->name = newname;
|
|
|
1013
|
|
|
1014 /* Catch redisplay's attention. Unless we do this, the modelines for
|
|
|
1015 any windows displaying current_buffer will stay unchanged. */
|
|
|
1016 MARK_MODELINE_CHANGED;
|
|
|
1017
|
|
|
1018 buf = Fcurrent_buffer ();
|
|
|
1019
|
|
|
1020 /* The aconses in the Vbuffer_alist are shared with frame->buffer_alist,
|
|
|
1021 so this will change it in the per-frame ordering as well. */
|
|
|
1022 Fsetcar (Frassq (buf, Vbuffer_alist), newname);
|
|
|
1023 if (NILP (current_buffer->filename)
|
|
|
1024 && !NILP (current_buffer->auto_save_file_name))
|
|
|
1025 call0 (Qrename_auto_save_file);
|
|
|
1026 /* refetch since that last call may have done GC */
|
|
|
1027 /* (hypothetical relocating GC) */
|
|
|
1028 return current_buffer->name;
|
|
|
1029 }
|
|
|
1030
|
|
20
|
1031 DEFUN ("other-buffer", Fother_buffer, 0, 3, 0, /*
|
|
0
|
1032 Return most recently selected buffer other than BUFFER.
|
|
|
1033 Buffers not visible in windows are preferred to visible buffers,
|
|
|
1034 unless optional third argument VISIBLE-OK is non-nil.
|
|
|
1035 If no other buffer exists, the buffer `*scratch*' is returned.
|
|
|
1036 If BUFFER is omitted or nil, some interesting buffer is returned.
|
|
|
1037
|
|
|
1038 The ordering is for this frame; If second optional argument FRAME
|
|
|
1039 is provided, then the ordering is for that frame. If the second arg
|
|
|
1040 is t, then the global ordering is returned.
|
|
|
1041
|
|
|
1042 Note: In FSF Emacs, this function takes two arguments: BUFFER and
|
|
|
1043 VISIBLE-OK.
|
|
20
|
1044 */
|
|
|
1045 (buffer, frame, visible_ok))
|
|
0
|
1046 {
|
|
|
1047 /* This function can GC */
|
|
|
1048 Lisp_Object tail, buf, notsogood, tem;
|
|
|
1049 Lisp_Object alist;
|
|
|
1050
|
|
|
1051 notsogood = Qnil;
|
|
|
1052
|
|
|
1053 if (EQ (frame, Qt))
|
|
|
1054 alist = Vbuffer_alist;
|
|
|
1055 else
|
|
|
1056 {
|
|
|
1057 struct frame *f = decode_frame (frame);
|
|
|
1058
|
|
|
1059 XSETFRAME (frame, f);
|
|
|
1060 alist = f->buffer_alist;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 for (tail = alist; !NILP (tail); tail = Fcdr (tail))
|
|
|
1064 {
|
|
|
1065 buf = Fcdr (Fcar (tail));
|
|
|
1066 if (EQ (buf, buffer))
|
|
|
1067 continue;
|
|
|
1068 if (string_byte (XSTRING (XBUFFER (buf)->name), 0) == ' ')
|
|
|
1069 continue;
|
|
|
1070 /* If FRAME has a buffer_predicate,
|
|
|
1071 disregard buffers that don't fit the predicate. */
|
|
|
1072 if (FRAMEP (frame))
|
|
|
1073 {
|
|
183
|
1074 tem = XFRAME (frame)->buffer_predicate;
|
|
0
|
1075 if (!NILP (tem))
|
|
|
1076 {
|
|
|
1077 tem = call1 (tem, buf);
|
|
|
1078 if (NILP (tem))
|
|
|
1079 continue;
|
|
|
1080 }
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 if (NILP (visible_ok))
|
|
|
1084 {
|
|
|
1085 /* get-buffer-window will handle nil or t frame */
|
|
|
1086 tem = Fget_buffer_window (buf, frame, Qnil);
|
|
|
1087 }
|
|
|
1088 else
|
|
|
1089 tem = Qnil;
|
|
|
1090 if (NILP (tem))
|
|
|
1091 return buf;
|
|
|
1092 if (NILP (notsogood))
|
|
|
1093 notsogood = buf;
|
|
|
1094 }
|
|
|
1095 if (!NILP (notsogood))
|
|
|
1096 return notsogood;
|
|
|
1097 return Fget_buffer_create (QSscratch);
|
|
|
1098 }
|
|
|
1099
|
|
100
|
1100 DEFUN ("buffer-disable-undo", Fbuffer_disable_undo, 0, 1, "", /*
|
|
0
|
1101 Make BUFFER stop keeping undo information.
|
|
|
1102 Any undo records it already has are discarded.
|
|
100
|
1103 No argument or nil as argument means do this for the current buffer.
|
|
20
|
1104 */
|
|
|
1105 (buffer))
|
|
0
|
1106 {
|
|
276
|
1107 /* Allowing nil is an RMSism */
|
|
0
|
1108 struct buffer *real_buf = decode_buffer (buffer, 1);
|
|
|
1109 real_buf->undo_list = Qt;
|
|
|
1110 return Qnil;
|
|
|
1111 }
|
|
|
1112
|
|
20
|
1113 DEFUN ("buffer-enable-undo", Fbuffer_enable_undo, 0, 1, "", /*
|
|
0
|
1114 Start keeping undo information for buffer BUFFER.
|
|
|
1115 No argument or nil as argument means do this for the current buffer.
|
|
20
|
1116 */
|
|
|
1117 (buffer))
|
|
0
|
1118 {
|
|
276
|
1119 /* Allowing nil is an RMSism */
|
|
0
|
1120 struct buffer *real_buf = decode_buffer (buffer, 1);
|
|
|
1121 if (EQ (real_buf->undo_list, Qt))
|
|
|
1122 real_buf->undo_list = Qnil;
|
|
|
1123
|
|
|
1124 return Qnil;
|
|
|
1125 }
|
|
|
1126
|
|
20
|
1127 DEFUN ("kill-buffer", Fkill_buffer, 1, 1, "bKill buffer: ", /*
|
|
0
|
1128 Kill the buffer BUFNAME.
|
|
|
1129 The argument may be a buffer or may be the name of a buffer.
|
|
|
1130 An argument of nil means kill the current buffer.
|
|
|
1131
|
|
|
1132 Value is t if the buffer is actually killed, nil if user says no.
|
|
|
1133
|
|
|
1134 The value of `kill-buffer-hook' (which may be local to that buffer),
|
|
|
1135 if not void, is a list of functions to be called, with no arguments,
|
|
|
1136 before the buffer is actually killed. The buffer to be killed is current
|
|
|
1137 when the hook functions are called.
|
|
|
1138
|
|
|
1139 Any processes that have this buffer as the `process-buffer' are killed
|
|
|
1140 with `delete-process'.
|
|
20
|
1141 */
|
|
|
1142 (bufname))
|
|
0
|
1143 {
|
|
116
|
1144 /* This function can call lisp */
|
|
0
|
1145 Lisp_Object buf;
|
|
|
1146 REGISTER struct buffer *b;
|
|
|
1147 struct gcpro gcpro1, gcpro2;
|
|
|
1148
|
|
|
1149 if (NILP (bufname))
|
|
|
1150 buf = Fcurrent_buffer ();
|
|
|
1151 else if (BUFFERP (bufname))
|
|
|
1152 buf = bufname;
|
|
|
1153 else
|
|
|
1154 {
|
|
|
1155 buf = get_buffer (bufname, 0);
|
|
|
1156 if (NILP (buf)) nsberror (bufname);
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 b = XBUFFER (buf);
|
|
|
1160
|
|
|
1161 /* OK to delete an already-deleted buffer. */
|
|
|
1162 if (!BUFFER_LIVE_P (b))
|
|
|
1163 return Qnil;
|
|
|
1164
|
|
|
1165 /* Don't kill the minibuffer now current. */
|
|
|
1166 if (EQ (buf, Vminibuffer_zero))
|
|
|
1167 return Qnil;
|
|
|
1168
|
|
|
1169 /* Or the echo area. */
|
|
|
1170 if (EQ (buf, Vecho_area_buffer))
|
|
|
1171 return Qnil;
|
|
|
1172
|
|
|
1173 /* Query if the buffer is still modified. */
|
|
|
1174 if (INTERACTIVE && !NILP (b->filename)
|
|
|
1175 && BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
1176 {
|
|
|
1177 Lisp_Object killp;
|
|
|
1178 GCPRO2 (buf, bufname);
|
|
|
1179 killp = call1
|
|
|
1180 (Qyes_or_no_p,
|
|
|
1181 (emacs_doprnt_string_c
|
|
|
1182 ((CONST Bufbyte *) GETTEXT ("Buffer %s modified; kill anyway? "),
|
|
14
|
1183 Qnil, -1, XSTRING_DATA (b->name))));
|
|
0
|
1184 UNGCPRO;
|
|
|
1185 if (NILP (killp))
|
|
|
1186 return Qnil;
|
|
|
1187 b = XBUFFER (buf); /* Hypothetical relocating GC. */
|
|
|
1188 }
|
|
|
1189
|
|
|
1190 /* Run hooks with the buffer to be killed temporarily selected,
|
|
|
1191 unless the buffer is already dead (could have been deleted
|
|
|
1192 in the question above).
|
|
|
1193 */
|
|
|
1194 if (BUFFER_LIVE_P (b))
|
|
|
1195 {
|
|
|
1196 int speccount = specpdl_depth ();
|
|
|
1197 Lisp_Object tail = Qnil;
|
|
|
1198
|
|
|
1199 GCPRO2 (buf, tail);
|
|
|
1200 record_unwind_protect (save_excursion_restore, save_excursion_save ());
|
|
|
1201 Fset_buffer (buf);
|
|
|
1202
|
|
|
1203 /* First run the query functions; if any query is answered no,
|
|
|
1204 don't kill the buffer. */
|
|
219
|
1205 EXTERNAL_LIST_LOOP (tail, Vkill_buffer_query_functions)
|
|
0
|
1206 {
|
|
|
1207 if (NILP (call0 (Fcar (tail))))
|
|
|
1208 {
|
|
|
1209 UNGCPRO;
|
|
|
1210 return unbind_to (speccount, Qnil);
|
|
|
1211 }
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 /* Then run the hooks. */
|
|
|
1215 run_hook (Qkill_buffer_hook);
|
|
|
1216 #ifdef HAVE_X_WINDOWS
|
|
|
1217 /* If an X selection was in this buffer, disown it.
|
|
|
1218 We could have done this by simply adding this function to the
|
|
|
1219 kill-buffer-hook, but the user might mess that up.
|
|
|
1220 */
|
|
|
1221 if (EQ (Vwindow_system, Qx))
|
|
|
1222 call0 (intern ("xselect-kill-buffer-hook"));
|
|
|
1223 /* #### generalize me! */
|
|
183
|
1224 #endif /* HAVE_X_WINDOWS */
|
|
0
|
1225 unbind_to (speccount, Qnil);
|
|
|
1226 UNGCPRO;
|
|
|
1227 b = XBUFFER (buf); /* Hypothetical relocating GC. */
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 /* We have no more questions to ask. Verify that it is valid
|
|
|
1231 to kill the buffer. This must be done after the questions
|
|
|
1232 since anything can happen within yes-or-no-p. */
|
|
|
1233
|
|
114
|
1234 /* Might have been deleted during the last question above */
|
|
|
1235 if (!BUFFER_LIVE_P (b))
|
|
|
1236 return Qnil;
|
|
|
1237
|
|
70
|
1238 /* Don't kill the minibuffer now current. */
|
|
|
1239 if (EQ (buf, XWINDOW (minibuf_window)->buffer))
|
|
|
1240 return Qnil;
|
|
|
1241
|
|
0
|
1242 /* When we kill a base buffer, kill all its indirect buffers.
|
|
|
1243 We do it at this stage so nothing terrible happens if they
|
|
|
1244 ask questions or their hooks get errors. */
|
|
|
1245 if (! b->base_buffer)
|
|
|
1246 {
|
|
|
1247 Lisp_Object rest;
|
|
|
1248
|
|
|
1249 GCPRO1 (buf);
|
|
|
1250
|
|
|
1251 LIST_LOOP (rest, b->indirect_children)
|
|
373
|
1252 {
|
|
|
1253 Fkill_buffer (XCAR (rest));
|
|
|
1254 /* Keep indirect_children updated in case a
|
|
|
1255 query-function/hook throws. */
|
|
|
1256 b->indirect_children = XCDR (rest);
|
|
|
1257 }
|
|
0
|
1258
|
|
|
1259 UNGCPRO;
|
|
|
1260 }
|
|
183
|
1261
|
|
0
|
1262 /* Make this buffer not be current.
|
|
|
1263 In the process, notice if this is the sole visible buffer
|
|
|
1264 and give up if so. */
|
|
|
1265 if (b == current_buffer)
|
|
|
1266 {
|
|
|
1267 Fset_buffer (Fother_buffer (buf, Qnil, Qnil));
|
|
|
1268 if (b == current_buffer)
|
|
|
1269 return Qnil;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 /* Now there is no question: we can kill the buffer. */
|
|
|
1273
|
|
|
1274 #ifdef CLASH_DETECTION
|
|
114
|
1275 /* Unlock this buffer's file, if it is locked. unlock_buffer
|
|
|
1276 can both GC and kill the current buffer, and wreak general
|
|
|
1277 havok by running lisp code. */
|
|
|
1278 GCPRO1 (buf);
|
|
0
|
1279 unlock_buffer (b);
|
|
114
|
1280 UNGCPRO;
|
|
|
1281 b = XBUFFER (buf);
|
|
|
1282
|
|
|
1283 if (!BUFFER_LIVE_P (b))
|
|
|
1284 return Qnil;
|
|
|
1285
|
|
|
1286 if (b == current_buffer)
|
|
|
1287 {
|
|
|
1288 Fset_buffer (Fother_buffer (buf, Qnil, Qnil));
|
|
|
1289 if (b == current_buffer)
|
|
|
1290 return Qnil;
|
|
|
1291 }
|
|
0
|
1292 #endif /* CLASH_DETECTION */
|
|
|
1293
|
|
|
1294 {
|
|
|
1295 int speccount = specpdl_depth ();
|
|
|
1296 specbind (Qinhibit_quit, Qt);
|
|
|
1297
|
|
|
1298 kill_buffer_processes (buf);
|
|
|
1299
|
|
|
1300 /* #### This is a problem if this buffer is in a dedicated window.
|
|
|
1301 Need to undedicate any windows of this buffer first (and delete them?)
|
|
|
1302 */
|
|
|
1303 Freplace_buffer_in_windows (buf);
|
|
|
1304
|
|
|
1305 delete_from_buffer_alist (buf);
|
|
|
1306
|
|
|
1307 font_lock_buffer_was_killed (b);
|
|
|
1308
|
|
|
1309 /* Delete any auto-save file, if we saved it in this session. */
|
|
|
1310 if (STRINGP (b->auto_save_file_name)
|
|
|
1311 && b->auto_save_modified != 0
|
|
|
1312 && BUF_SAVE_MODIFF (b) < b->auto_save_modified)
|
|
|
1313 {
|
|
146
|
1314 if (delete_auto_save_files != 0)
|
|
116
|
1315 {
|
|
|
1316 /* deleting the auto save file might kill b! */
|
|
|
1317 /* #### dmoore - fix this crap, we do this same gcpro and
|
|
|
1318 buffer liveness check multiple times. Let's get a
|
|
|
1319 macro or something for it. */
|
|
|
1320 GCPRO1 (buf);
|
|
|
1321 internal_delete_file (b->auto_save_file_name);
|
|
|
1322 UNGCPRO;
|
|
|
1323 b = XBUFFER (buf);
|
|
183
|
1324
|
|
116
|
1325 if (!BUFFER_LIVE_P (b))
|
|
|
1326 return Qnil;
|
|
|
1327
|
|
|
1328 if (b == current_buffer)
|
|
|
1329 {
|
|
|
1330 Fset_buffer (Fother_buffer (buf, Qnil, Qnil));
|
|
|
1331 if (b == current_buffer)
|
|
|
1332 return Qnil;
|
|
|
1333 }
|
|
|
1334 }
|
|
0
|
1335 }
|
|
|
1336
|
|
|
1337 uninit_buffer_markers (b);
|
|
|
1338
|
|
|
1339 kill_buffer_local_variables (b);
|
|
|
1340
|
|
|
1341 b->name = Qnil;
|
|
373
|
1342 uninit_buffer_text (b);
|
|
0
|
1343 b->undo_list = Qnil;
|
|
|
1344 uninit_buffer_extents (b);
|
|
|
1345 if (b->base_buffer)
|
|
|
1346 {
|
|
|
1347 #ifdef ERROR_CHECK_BUFPOS
|
|
|
1348 assert (!NILP (memq_no_quit (buf, b->base_buffer->indirect_children)));
|
|
|
1349 #endif
|
|
|
1350 b->base_buffer->indirect_children =
|
|
|
1351 delq_no_quit (buf, b->base_buffer->indirect_children);
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 /* Clear away all Lisp objects, so that they
|
|
|
1355 won't be protected from GC. */
|
|
|
1356 nuke_all_buffer_slots (b, Qnil);
|
|
|
1357
|
|
|
1358 unbind_to (speccount, Qnil);
|
|
|
1359 }
|
|
|
1360 return Qt;
|
|
|
1361 }
|
|
|
1362
|
|
20
|
1363 DEFUN ("record-buffer", Frecord_buffer, 1, 1, 0, /*
|
|
2
|
1364 Place buffer BUF first in the buffer order.
|
|
185
|
1365 Call this function when a buffer is selected "visibly".
|
|
2
|
1366
|
|
|
1367 This function changes the global buffer order and the per-frame buffer
|
|
|
1368 order for the selected frame. The buffer order keeps track of recency
|
|
|
1369 of selection so that `other-buffer' will return a recently selected
|
|
|
1370 buffer. See `other-buffer' for more information.
|
|
20
|
1371 */
|
|
|
1372 (buf))
|
|
0
|
1373 {
|
|
|
1374 REGISTER Lisp_Object lynk, prev;
|
|
|
1375 struct frame *f = selected_frame ();
|
|
|
1376
|
|
|
1377 prev = Qnil;
|
|
|
1378 for (lynk = Vbuffer_alist; CONSP (lynk); lynk = XCDR (lynk))
|
|
|
1379 {
|
|
|
1380 if (EQ (XCDR (XCAR (lynk)), buf))
|
|
|
1381 break;
|
|
|
1382 prev = lynk;
|
|
|
1383 }
|
|
|
1384 /* Effectively do Vbuffer_alist = delq_no_quit (lynk, Vbuffer_alist) */
|
|
|
1385 if (NILP (prev))
|
|
|
1386 Vbuffer_alist = XCDR (Vbuffer_alist);
|
|
|
1387 else
|
|
|
1388 XCDR (prev) = XCDR (XCDR (prev));
|
|
|
1389 XCDR (lynk) = Vbuffer_alist;
|
|
|
1390 Vbuffer_alist = lynk;
|
|
|
1391
|
|
|
1392 /* That was the global one. Now do the same thing for the
|
|
|
1393 per-frame buffer-alist. */
|
|
|
1394 prev = Qnil;
|
|
|
1395 for (lynk = f->buffer_alist; CONSP (lynk); lynk = XCDR (lynk))
|
|
|
1396 {
|
|
|
1397 if (EQ (XCDR (XCAR (lynk)), buf))
|
|
|
1398 break;
|
|
|
1399 prev = lynk;
|
|
|
1400 }
|
|
|
1401 /* Effectively do f->buffer_alist = delq_no_quit (lynk, f->buffer_alist) */
|
|
|
1402 if (NILP (prev))
|
|
|
1403 f->buffer_alist = XCDR (f->buffer_alist);
|
|
|
1404 else
|
|
|
1405 XCDR (prev) = XCDR (XCDR (prev));
|
|
|
1406 XCDR (lynk) = f->buffer_alist;
|
|
|
1407 f->buffer_alist = lynk;
|
|
|
1408 return Qnil;
|
|
|
1409 }
|
|
|
1410
|
|
20
|
1411 DEFUN ("set-buffer-major-mode", Fset_buffer_major_mode, 1, 1, 0, /*
|
|
0
|
1412 Set an appropriate major mode for BUFFER, according to `default-major-mode'.
|
|
|
1413 Use this function before selecting the buffer, since it may need to inspect
|
|
|
1414 the current buffer's major mode.
|
|
20
|
1415 */
|
|
|
1416 (buf))
|
|
0
|
1417 {
|
|
|
1418 int speccount = specpdl_depth ();
|
|
|
1419 REGISTER Lisp_Object function, tem;
|
|
|
1420
|
|
|
1421 function = XBUFFER (Vbuffer_defaults)->major_mode;
|
|
|
1422 if (NILP (function))
|
|
|
1423 {
|
|
|
1424 tem = Fget (current_buffer->major_mode, Qmode_class, Qnil);
|
|
|
1425 if (NILP (tem))
|
|
|
1426 function = current_buffer->major_mode;
|
|
|
1427 }
|
|
|
1428
|
|
|
1429 if (NILP (function) || EQ (function, Qfundamental_mode))
|
|
|
1430 return Qnil;
|
|
|
1431
|
|
|
1432 /* To select a nonfundamental mode,
|
|
|
1433 select the buffer temporarily and then call the mode function. */
|
|
|
1434
|
|
|
1435 record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
|
|
|
1436
|
|
|
1437 Fset_buffer (buf);
|
|
|
1438 call0 (function);
|
|
|
1439
|
|
|
1440 return unbind_to (speccount, Qnil);
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 void
|
|
|
1444 switch_to_buffer (Lisp_Object bufname, Lisp_Object norecord)
|
|
|
1445 {
|
|
|
1446 call2 (Qswitch_to_buffer, bufname, norecord);
|
|
|
1447 }
|
|
|
1448
|
|
|
1449
|
|
20
|
1450 DEFUN ("current-buffer", Fcurrent_buffer, 0, 0, 0, /*
|
|
0
|
1451 Return the current buffer as a Lisp object.
|
|
20
|
1452 */
|
|
|
1453 ())
|
|
0
|
1454 {
|
|
|
1455 Lisp_Object buf;
|
|
|
1456 XSETBUFFER (buf, current_buffer);
|
|
|
1457 return buf;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460 /* Set the current buffer to B. */
|
|
|
1461
|
|
|
1462 void
|
|
|
1463 set_buffer_internal (struct buffer *b)
|
|
|
1464 {
|
|
|
1465 REGISTER struct buffer *old_buf;
|
|
|
1466 REGISTER Lisp_Object tail;
|
|
|
1467
|
|
|
1468 if (current_buffer == b)
|
|
|
1469 return;
|
|
|
1470
|
|
|
1471 INVALIDATE_PIXEL_TO_GLYPH_CACHE;
|
|
|
1472
|
|
|
1473 old_buf = current_buffer;
|
|
|
1474 current_buffer = b;
|
|
|
1475 invalidate_current_column (); /* invalidate indentation cache */
|
|
|
1476
|
|
|
1477 #ifdef HAVE_FEP
|
|
|
1478 if (!noninteractive && initialized)
|
|
|
1479 {
|
|
|
1480 extern Lisp_Object Ffep_force_on (), Ffep_force_off (), Ffep_get_mode ();
|
|
|
1481
|
|
|
1482 old_buf->fep_mode = Ffep_get_mode ();
|
|
183
|
1483
|
|
0
|
1484 if (!NILP (current_buffer->fep_mode))
|
|
|
1485 Ffep_force_on ();
|
|
|
1486 else
|
|
|
1487 Ffep_force_off ();
|
|
|
1488 }
|
|
183
|
1489 #endif /* HAVE_FEP */
|
|
0
|
1490
|
|
|
1491 if (old_buf)
|
|
|
1492 {
|
|
|
1493 /* Put the undo list back in the base buffer, so that it appears
|
|
|
1494 that an indirect buffer shares the undo list of its base. */
|
|
|
1495 if (old_buf->base_buffer)
|
|
|
1496 old_buf->base_buffer->undo_list = old_buf->undo_list;
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 /* Get the undo list from the base buffer, so that it appears
|
|
|
1500 that an indirect buffer shares the undo list of its base. */
|
|
|
1501 if (b->base_buffer)
|
|
|
1502 b->undo_list = b->base_buffer->undo_list;
|
|
|
1503
|
|
|
1504 /* Look down buffer's list of local Lisp variables
|
|
|
1505 to find and update any that forward into C variables. */
|
|
|
1506
|
|
|
1507 LIST_LOOP (tail, b->local_var_alist)
|
|
|
1508 {
|
|
|
1509 Lisp_Object sym = XCAR (XCAR (tail));
|
|
|
1510 Lisp_Object valcontents = XSYMBOL (sym)->value;
|
|
|
1511 if (SYMBOL_VALUE_MAGIC_P (valcontents))
|
|
|
1512 {
|
|
|
1513 /* Just reference the variable
|
|
|
1514 to cause it to become set for this buffer. */
|
|
82
|
1515 /* Use find_symbol_value_quickly to avoid an unnecessary O(n)
|
|
|
1516 lookup. */
|
|
|
1517 (void) find_symbol_value_quickly (XCAR (tail), 1);
|
|
0
|
1518 }
|
|
|
1519 }
|
|
|
1520
|
|
|
1521 /* Do the same with any others that were local to the previous buffer */
|
|
|
1522
|
|
|
1523 if (old_buf)
|
|
|
1524 {
|
|
82
|
1525 LIST_LOOP (tail, old_buf->local_var_alist)
|
|
0
|
1526 {
|
|
|
1527 Lisp_Object sym = XCAR (XCAR (tail));
|
|
|
1528 Lisp_Object valcontents = XSYMBOL (sym)->value;
|
|
|
1529
|
|
|
1530 if (SYMBOL_VALUE_MAGIC_P (valcontents))
|
|
|
1531 {
|
|
|
1532 /* Just reference the variable
|
|
|
1533 to cause it to become set for this buffer. */
|
|
82
|
1534 /* Use find_symbol_value_quickly with find_it_p as 0 to avoid an
|
|
|
1535 unnecessary O(n) lookup which is guaranteed to be worst case.
|
|
|
1536 Any symbols which are local are guaranteed to have been
|
|
|
1537 handled in the previous loop, above. */
|
|
|
1538 (void) find_symbol_value_quickly (sym, 0);
|
|
0
|
1539 }
|
|
|
1540 }
|
|
|
1541 }
|
|
|
1542 }
|
|
|
1543
|
|
20
|
1544 DEFUN ("set-buffer", Fset_buffer, 1, 1, 0, /*
|
|
272
|
1545 Make the buffer BUFFER current for editing operations.
|
|
|
1546 BUFFER may be a buffer or the name of an existing buffer.
|
|
0
|
1547 See also `save-excursion' when you want to make a buffer current temporarily.
|
|
|
1548 This function does not display the buffer, so its effect ends
|
|
|
1549 when the current command terminates.
|
|
|
1550 Use `switch-to-buffer' or `pop-to-buffer' to switch buffers permanently.
|
|
20
|
1551 */
|
|
272
|
1552 (buffer))
|
|
0
|
1553 {
|
|
272
|
1554 buffer = get_buffer (buffer, 0);
|
|
0
|
1555 if (NILP (buffer))
|
|
|
1556 error ("Selecting deleted or non-existent buffer");
|
|
|
1557 set_buffer_internal (XBUFFER (buffer));
|
|
|
1558 return buffer;
|
|
|
1559 }
|
|
|
1560
|
|
|
1561
|
|
20
|
1562 DEFUN ("barf-if-buffer-read-only", Fbarf_if_buffer_read_only, 0, 3, 0, /*
|
|
0
|
1563 Signal a `buffer-read-only' error if the buffer is read-only.
|
|
|
1564 Optional argument BUFFER defaults to the current buffer.
|
|
|
1565
|
|
|
1566 If optional argument START is non-nil, all extents in the buffer
|
|
|
1567 which overlap that part of the buffer are checked to ensure none has a
|
|
|
1568 `read-only' property. (Extents that lie completely within the range,
|
|
|
1569 however, are not checked.) END defaults to the value of START.
|
|
|
1570
|
|
|
1571 If START and END are equal, the range checked is [START, END] (i.e.
|
|
|
1572 closed on both ends); otherwise, the range checked is (START, END)
|
|
272
|
1573 \(open on both ends), except that extents that lie completely within
|
|
0
|
1574 [START, END] are not checked. See `extent-in-region-p' for a fuller
|
|
|
1575 discussion.
|
|
20
|
1576 */
|
|
|
1577 (buffer, start, end))
|
|
0
|
1578 {
|
|
|
1579 struct buffer *b = decode_buffer (buffer, 0);
|
|
|
1580 Bufpos s, e;
|
|
|
1581
|
|
|
1582 if (NILP (start))
|
|
|
1583 s = e = -1;
|
|
|
1584 else
|
|
|
1585 {
|
|
|
1586 if (NILP (end))
|
|
|
1587 end = start;
|
|
|
1588 get_buffer_range_char (b, start, end, &s, &e, 0);
|
|
|
1589 }
|
|
|
1590 barf_if_buffer_read_only (b, s, e);
|
|
|
1591
|
|
183
|
1592 return Qnil;
|
|
0
|
1593 }
|
|
|
1594
|
|
|
1595 static void
|
|
|
1596 bury_buffer_1 (Lisp_Object buffer, Lisp_Object before,
|
|
|
1597 Lisp_Object *buffer_alist)
|
|
|
1598 {
|
|
|
1599 Lisp_Object aelt = rassq_no_quit (buffer, *buffer_alist);
|
|
|
1600 Lisp_Object lynk = memq_no_quit (aelt, *buffer_alist);
|
|
|
1601 Lisp_Object iter, before_before;
|
|
|
1602
|
|
|
1603 *buffer_alist = delq_no_quit (aelt, *buffer_alist);
|
|
|
1604 for (before_before = Qnil, iter = *buffer_alist;
|
|
|
1605 !NILP (iter) && !EQ (XCDR (XCAR (iter)), before);
|
|
|
1606 before_before = iter, iter = XCDR (iter))
|
|
|
1607 ;
|
|
|
1608 XCDR (lynk) = iter;
|
|
|
1609 if (!NILP (before_before))
|
|
|
1610 XCDR (before_before) = lynk;
|
|
|
1611 else
|
|
|
1612 *buffer_alist = lynk;
|
|
|
1613 }
|
|
|
1614
|
|
20
|
1615 DEFUN ("bury-buffer", Fbury_buffer, 0, 2, "", /*
|
|
0
|
1616 Put BUFFER at the end of the list of all buffers.
|
|
|
1617 There it is the least likely candidate for `other-buffer' to return;
|
|
|
1618 thus, the least likely buffer for \\[switch-to-buffer] to select by default.
|
|
|
1619 If BUFFER is nil or omitted, bury the current buffer.
|
|
|
1620 Also, if BUFFER is nil or omitted, remove the current buffer from the
|
|
|
1621 selected window if it is displayed there.
|
|
|
1622 If BEFORE is non-nil, it specifies a buffer before which BUFFER
|
|
|
1623 will be placed, instead of being placed at the end.
|
|
20
|
1624 */
|
|
|
1625 (buffer, before))
|
|
0
|
1626 {
|
|
|
1627 /* This function can GC */
|
|
|
1628 struct buffer *buf = decode_buffer (buffer, 1);
|
|
|
1629 /* If we're burying the current buffer, unshow it. */
|
|
|
1630 /* Note that the behavior of (bury-buffer nil) and
|
|
|
1631 (bury-buffer (current-buffer)) is not the same.
|
|
|
1632 This is illogical but is historical. Changing it
|
|
|
1633 breaks mh-e and TeX and such packages. */
|
|
|
1634 if (NILP (buffer))
|
|
|
1635 switch_to_buffer (Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), Qnil);
|
|
|
1636 XSETBUFFER (buffer, buf);
|
|
|
1637
|
|
|
1638 if (!NILP (before))
|
|
|
1639 before = get_buffer (before, 1);
|
|
|
1640
|
|
|
1641 if (EQ (before, buffer))
|
|
|
1642 error ("Cannot place a buffer before itself");
|
|
|
1643
|
|
|
1644 bury_buffer_1 (buffer, before, &Vbuffer_alist);
|
|
|
1645 bury_buffer_1 (buffer, before, &selected_frame ()->buffer_alist);
|
|
|
1646
|
|
|
1647 return Qnil;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650
|
|
20
|
1651 DEFUN ("erase-buffer", Ferase_buffer, 0, 1, "*", /*
|
|
0
|
1652 Delete the entire contents of the BUFFER.
|
|
|
1653 Any clipping restriction in effect (see `narrow-to-region') is removed,
|
|
|
1654 so the buffer is truly empty after this.
|
|
|
1655 BUFFER defaults to the current buffer if omitted.
|
|
20
|
1656 */
|
|
|
1657 (buffer))
|
|
0
|
1658 {
|
|
|
1659 /* This function can GC */
|
|
|
1660 struct buffer *b = decode_buffer (buffer, 1);
|
|
|
1661 /* #### yuck yuck yuck. This is gross. The old echo-area code,
|
|
|
1662 however, was the only place that called erase_buffer() with a
|
|
|
1663 non-zero NO_CLIP argument.
|
|
|
1664
|
|
|
1665 Someone needs to fix up the redisplay code so it is smarter
|
|
|
1666 about this, so that the NO_CLIP junk isn't necessary. */
|
|
|
1667 int no_clip = (b == XBUFFER (Vecho_area_buffer));
|
|
|
1668
|
|
|
1669 INVALIDATE_PIXEL_TO_GLYPH_CACHE;
|
|
|
1670
|
|
|
1671 widen_buffer (b, no_clip);
|
|
|
1672 buffer_delete_range (b, BUF_BEG (b), BUF_Z (b), 0);
|
|
|
1673 b->last_window_start = 1;
|
|
|
1674
|
|
|
1675 /* Prevent warnings, or suspension of auto saving, that would happen
|
|
|
1676 if future size is less than past size. Use of erase-buffer
|
|
|
1677 implies that the future text is not really related to the past text. */
|
|
272
|
1678 b->saved_size = Qzero;
|
|
0
|
1679
|
|
|
1680 zmacs_region_stays = 0;
|
|
|
1681 return Qnil;
|
|
|
1682 }
|
|
|
1683
|
|
|
1684
|
|
|
1685
|
|
20
|
1686 DEFUN ("kill-all-local-variables", Fkill_all_local_variables, 0, 0, 0, /*
|
|
0
|
1687 Switch to Fundamental mode by killing current buffer's local variables.
|
|
|
1688 Most local variable bindings are eliminated so that the default values
|
|
|
1689 become effective once more. Also, the syntax table is set from
|
|
70
|
1690 `standard-syntax-table', the category table is set from
|
|
|
1691 `standard-category-table' (if support for Mule exists), local keymap is set
|
|
|
1692 to nil, the abbrev table is set from `fundamental-mode-abbrev-table',
|
|
0
|
1693 and all specifier specifications whose locale is the current buffer
|
|
|
1694 are removed. This function also forces redisplay of the modeline.
|
|
|
1695
|
|
|
1696 Every function to select a new major mode starts by
|
|
|
1697 calling this function.
|
|
|
1698
|
|
|
1699 As a special exception, local variables whose names have
|
|
|
1700 a non-nil `permanent-local' property are not eliminated by this function.
|
|
|
1701
|
|
|
1702 The first thing this function does is run
|
|
|
1703 the normal hook `change-major-mode-hook'.
|
|
20
|
1704 */
|
|
|
1705 ())
|
|
0
|
1706 {
|
|
|
1707 /* This function can GC */
|
|
|
1708 run_hook (Qchange_major_mode_hook);
|
|
|
1709
|
|
|
1710 reset_buffer_local_variables (current_buffer, 0);
|
|
|
1711
|
|
|
1712 kill_buffer_local_variables (current_buffer);
|
|
|
1713
|
|
|
1714 kill_specifier_buffer_locals (Fcurrent_buffer ());
|
|
|
1715
|
|
|
1716 /* Force modeline redisplay. Useful here because all major mode
|
|
|
1717 commands call this function. */
|
|
|
1718 MARK_MODELINE_CHANGED;
|
|
|
1719
|
|
|
1720 return Qnil;
|
|
|
1721 }
|
|
|
1722
|
|
|
1723 #ifdef MEMORY_USAGE_STATS
|
|
|
1724
|
|
|
1725 struct buffer_stats
|
|
|
1726 {
|
|
|
1727 int text;
|
|
|
1728 int markers;
|
|
|
1729 int extents;
|
|
|
1730 int other;
|
|
|
1731 };
|
|
|
1732
|
|
272
|
1733 static size_t
|
|
0
|
1734 compute_buffer_text_usage (struct buffer *b, struct overhead_stats *ovstats)
|
|
|
1735 {
|
|
272
|
1736 int was_requested = b->text->z - 1;
|
|
|
1737 size_t gap = b->text->gap_size + b->text->end_gap_size;
|
|
|
1738 size_t malloc_use = malloced_storage_size (b->text->beg, was_requested + gap, 0);
|
|
|
1739
|
|
|
1740 ovstats->gap_overhead += gap;
|
|
|
1741 ovstats->was_requested += was_requested;
|
|
0
|
1742 ovstats->malloc_overhead += malloc_use - (was_requested + gap);
|
|
|
1743 return malloc_use;
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 static void
|
|
|
1747 compute_buffer_usage (struct buffer *b, struct buffer_stats *stats,
|
|
|
1748 struct overhead_stats *ovstats)
|
|
|
1749 {
|
|
272
|
1750 xzero (*stats);
|
|
|
1751 stats->other += malloced_storage_size (b, sizeof (*b), ovstats);
|
|
|
1752 stats->text += compute_buffer_text_usage (b, ovstats);
|
|
0
|
1753 stats->markers += compute_buffer_marker_usage (b, ovstats);
|
|
|
1754 stats->extents += compute_buffer_extent_usage (b, ovstats);
|
|
|
1755 }
|
|
|
1756
|
|
20
|
1757 DEFUN ("buffer-memory-usage", Fbuffer_memory_usage, 1, 1, 0, /*
|
|
0
|
1758 Return stats about the memory usage of buffer BUFFER.
|
|
272
|
1759 The values returned are in the form of an alist of usage types and byte
|
|
0
|
1760 counts. The byte counts attempt to encompass all the memory used
|
|
|
1761 by the buffer (separate from the memory logically associated with a
|
|
|
1762 buffer or frame), including internal structures and any malloc()
|
|
|
1763 overhead associated with them. In practice, the byte counts are
|
|
|
1764 underestimated because certain memory usage is very hard to determine
|
|
272
|
1765 \(e.g. the amount of memory used inside the Xt library or inside the
|
|
0
|
1766 X server) and because there is other stuff that might logically
|
|
|
1767 be associated with a window, buffer, or frame (e.g. window configurations,
|
|
|
1768 glyphs) but should not obviously be included in the usage counts.
|
|
|
1769
|
|
|
1770 Multiple slices of the total memory usage may be returned, separated
|
|
|
1771 by a nil. Each slice represents a particular view of the memory, a
|
|
|
1772 particular way of partitioning it into groups. Within a slice, there
|
|
|
1773 is no overlap between the groups of memory, and each slice collectively
|
|
|
1774 represents all the memory concerned.
|
|
20
|
1775 */
|
|
|
1776 (buffer))
|
|
0
|
1777 {
|
|
|
1778 struct buffer_stats stats;
|
|
|
1779 struct overhead_stats ovstats;
|
|
272
|
1780 Lisp_Object val = Qnil;
|
|
0
|
1781
|
|
|
1782 CHECK_BUFFER (buffer); /* dead buffers should be allowed, no? */
|
|
272
|
1783 xzero (ovstats);
|
|
0
|
1784 compute_buffer_usage (XBUFFER (buffer), &stats, &ovstats);
|
|
|
1785
|
|
272
|
1786 val = acons (Qtext, make_int (stats.text), val);
|
|
|
1787 val = acons (Qmarkers, make_int (stats.markers), val);
|
|
|
1788 val = acons (Qextents, make_int (stats.extents), val);
|
|
|
1789 val = acons (Qother, make_int (stats.other), val);
|
|
|
1790 val = Fcons (Qnil, val);
|
|
|
1791 val = acons (Qactually_requested, make_int (ovstats.was_requested), val);
|
|
|
1792 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val);
|
|
|
1793 val = acons (Qgap_overhead, make_int (ovstats.gap_overhead), val);
|
|
|
1794 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val);
|
|
|
1795
|
|
|
1796 return Fnreverse (val);
|
|
0
|
1797 }
|
|
|
1798
|
|
|
1799 #endif /* MEMORY_USAGE_STATS */
|
|
|
1800
|
|
|
1801 void
|
|
|
1802 syms_of_buffer (void)
|
|
|
1803 {
|
|
|
1804 defsymbol (&Qbuffer_live_p, "buffer-live-p");
|
|
|
1805 defsymbol (&Qbuffer_or_string_p, "buffer-or-string-p");
|
|
|
1806 defsymbol (&Qmode_class, "mode-class");
|
|
|
1807 defsymbol (&Qrename_auto_save_file, "rename-auto-save-file");
|
|
|
1808 defsymbol (&Qkill_buffer_hook, "kill-buffer-hook");
|
|
|
1809 defsymbol (&Qpermanent_local, "permanent-local");
|
|
|
1810
|
|
|
1811 defsymbol (&Qfirst_change_hook, "first-change-hook");
|
|
|
1812 defsymbol (&Qbefore_change_functions, "before-change-functions");
|
|
|
1813 defsymbol (&Qafter_change_functions, "after-change-functions");
|
|
|
1814
|
|
|
1815 /* #### Obsolete, for compatibility */
|
|
|
1816 defsymbol (&Qbefore_change_function, "before-change-function");
|
|
|
1817 defsymbol (&Qafter_change_function, "after-change-function");
|
|
|
1818
|
|
|
1819 defsymbol (&Qbuffer_file_name, "buffer-file-name");
|
|
|
1820 defsymbol (&Qbuffer_undo_list, "buffer-undo-list");
|
|
|
1821 defsymbol (&Qdefault_directory, "default-directory");
|
|
|
1822
|
|
|
1823 defsymbol (&Qget_file_buffer, "get-file-buffer");
|
|
|
1824 defsymbol (&Qchange_major_mode_hook, "change-major-mode-hook");
|
|
|
1825
|
|
|
1826 defsymbol (&Qfundamental_mode, "fundamental-mode");
|
|
|
1827
|
|
|
1828 defsymbol (&Qfind_file_compare_truenames, "find-file-compare-truenames");
|
|
|
1829
|
|
|
1830 defsymbol (&Qswitch_to_buffer, "switch-to-buffer");
|
|
|
1831
|
|
20
|
1832 DEFSUBR (Fbufferp);
|
|
|
1833 DEFSUBR (Fbuffer_live_p);
|
|
|
1834 DEFSUBR (Fbuffer_list);
|
|
|
1835 DEFSUBR (Fdecode_buffer);
|
|
|
1836 DEFSUBR (Fget_buffer);
|
|
|
1837 DEFSUBR (Fget_file_buffer);
|
|
|
1838 DEFSUBR (Fget_buffer_create);
|
|
|
1839 DEFSUBR (Fmake_indirect_buffer);
|
|
|
1840
|
|
|
1841 DEFSUBR (Fgenerate_new_buffer_name);
|
|
|
1842 DEFSUBR (Fbuffer_name);
|
|
|
1843 DEFSUBR (Fbuffer_file_name);
|
|
|
1844 DEFSUBR (Fbuffer_base_buffer);
|
|
|
1845 DEFSUBR (Fbuffer_indirect_children);
|
|
|
1846 DEFSUBR (Fbuffer_local_variables);
|
|
|
1847 DEFSUBR (Fbuffer_dedicated_frame);
|
|
|
1848 DEFSUBR (Fset_buffer_dedicated_frame);
|
|
|
1849 DEFSUBR (Fbuffer_modified_p);
|
|
|
1850 DEFSUBR (Fset_buffer_modified_p);
|
|
|
1851 DEFSUBR (Fbuffer_modified_tick);
|
|
|
1852 DEFSUBR (Frename_buffer);
|
|
|
1853 DEFSUBR (Fother_buffer);
|
|
|
1854 DEFSUBR (Fbuffer_disable_undo);
|
|
|
1855 DEFSUBR (Fbuffer_enable_undo);
|
|
|
1856 DEFSUBR (Fkill_buffer);
|
|
|
1857 DEFSUBR (Ferase_buffer);
|
|
|
1858 DEFSUBR (Frecord_buffer);
|
|
|
1859 DEFSUBR (Fset_buffer_major_mode);
|
|
|
1860 DEFSUBR (Fcurrent_buffer);
|
|
|
1861 DEFSUBR (Fset_buffer);
|
|
|
1862 DEFSUBR (Fbarf_if_buffer_read_only);
|
|
|
1863 DEFSUBR (Fbury_buffer);
|
|
|
1864 DEFSUBR (Fkill_all_local_variables);
|
|
0
|
1865 #ifdef MEMORY_USAGE_STATS
|
|
20
|
1866 DEFSUBR (Fbuffer_memory_usage);
|
|
0
|
1867 #endif
|
|
|
1868
|
|
|
1869 deferror (&Qprotected_field, "protected-field",
|
|
|
1870 "Attempt to modify a protected field", Qerror);
|
|
|
1871 }
|
|
|
1872
|
|
|
1873 /* initialize the buffer routines */
|
|
|
1874 void
|
|
|
1875 vars_of_buffer (void)
|
|
|
1876 {
|
|
|
1877 /* This function can GC */
|
|
|
1878 staticpro (&QSFundamental);
|
|
|
1879 staticpro (&QSscratch);
|
|
|
1880 staticpro (&Vbuffer_alist);
|
|
|
1881
|
|
|
1882 QSFundamental = Fpurecopy (build_string ("Fundamental"));
|
|
|
1883 QSscratch = Fpurecopy (build_string (DEFER_GETTEXT ("*scratch*")));
|
|
|
1884
|
|
|
1885 Vbuffer_alist = Qnil;
|
|
|
1886 current_buffer = 0;
|
|
|
1887
|
|
|
1888 DEFVAR_LISP ("change-major-mode-hook", &Vchange_major_mode_hook /*
|
|
|
1889 List of hooks to be run before killing local variables in a buffer.
|
|
2
|
1890 This should be used by any mode that temporarily alters the contents or
|
|
0
|
1891 the read-only state of the buffer. See also `kill-all-local-variables'.
|
|
|
1892 */ );
|
|
|
1893 Vchange_major_mode_hook = Qnil;
|
|
|
1894
|
|
|
1895 DEFVAR_BOOL ("find-file-compare-truenames", &find_file_compare_truenames /*
|
|
|
1896 If this is true, then the find-file command will check the truenames
|
|
|
1897 of all visited files when deciding whether a given file is already in
|
|
|
1898 a buffer, instead of just the buffer-file-name. This means that if you
|
|
|
1899 attempt to visit another file which is a symbolic-link to a file which is
|
|
|
1900 already in a buffer, the existing buffer will be found instead of a newly-
|
|
|
1901 created one. This works if any component of the pathname (including a non-
|
|
|
1902 terminal component) is a symbolic link as well, but doesn't work with hard
|
|
|
1903 links (nothing does).
|
|
|
1904
|
|
|
1905 See also the variable find-file-use-truenames.
|
|
|
1906 */ );
|
|
|
1907 find_file_compare_truenames = 0;
|
|
|
1908
|
|
|
1909 DEFVAR_BOOL ("find-file-use-truenames", &find_file_use_truenames /*
|
|
|
1910 If this is true, then a buffer's visited file-name will always be
|
|
|
1911 chased back to the real file; it will never be a symbolic link, and there
|
|
|
1912 will never be a symbolic link anywhere in its directory path.
|
|
|
1913 That is, the buffer-file-name and buffer-file-truename will be equal.
|
|
|
1914 This doesn't work with hard links.
|
|
|
1915
|
|
|
1916 See also the variable find-file-compare-truenames.
|
|
|
1917 */ );
|
|
|
1918 find_file_use_truenames = 0;
|
|
|
1919
|
|
|
1920 DEFVAR_LISP ("before-change-functions", &Vbefore_change_functions /*
|
|
|
1921 List of functions to call before each text change.
|
|
|
1922 Two arguments are passed to each function: the positions of
|
|
|
1923 the beginning and end of the range of old text to be changed.
|
|
|
1924 \(For an insertion, the beginning and end are at the same place.)
|
|
|
1925 No information is given about the length of the text after the change.
|
|
|
1926
|
|
|
1927 Buffer changes made while executing the `before-change-functions'
|
|
|
1928 don't call any before-change or after-change functions.
|
|
|
1929 */ );
|
|
|
1930 Vbefore_change_functions = Qnil;
|
|
|
1931
|
|
|
1932 /* FSF Emacs has the following additional doc at the end of
|
|
|
1933 before-change-functions and after-change-functions:
|
|
|
1934
|
|
203
|
1935 That's because these variables are temporarily set to nil.
|
|
|
1936 As a result, a hook function cannot straightforwardly alter the value of
|
|
|
1937 these variables. See the Emacs Lisp manual for a way of
|
|
0
|
1938 accomplishing an equivalent result by using other variables.
|
|
|
1939
|
|
|
1940 But this doesn't apply under XEmacs because things are
|
|
|
1941 handled better. */
|
|
|
1942
|
|
|
1943 DEFVAR_LISP ("after-change-functions", &Vafter_change_functions /*
|
|
|
1944 List of functions to call after each text change.
|
|
|
1945 Three arguments are passed to each function: the positions of
|
|
|
1946 the beginning and end of the range of changed text,
|
|
|
1947 and the length of the pre-change text replaced by that range.
|
|
|
1948 \(For an insertion, the pre-change length is zero;
|
|
|
1949 for a deletion, that length is the number of characters deleted,
|
|
|
1950 and the post-change beginning and end are at the same place.)
|
|
|
1951
|
|
|
1952 Buffer changes made while executing `after-change-functions'
|
|
|
1953 don't call any before-change or after-change functions.
|
|
|
1954 */ );
|
|
|
1955 Vafter_change_functions = Qnil;
|
|
|
1956
|
|
|
1957 DEFVAR_LISP ("before-change-function", &Vbefore_change_function /*
|
|
|
1958
|
|
|
1959 */ ); /* obsoleteness will be documented */
|
|
|
1960 Vbefore_change_function = Qnil;
|
|
|
1961
|
|
|
1962 DEFVAR_LISP ("after-change-function", &Vafter_change_function /*
|
|
|
1963
|
|
|
1964 */ ); /* obsoleteness will be documented */
|
|
|
1965 Vafter_change_function = Qnil;
|
|
|
1966
|
|
|
1967 DEFVAR_LISP ("first-change-hook", &Vfirst_change_hook /*
|
|
|
1968 A list of functions to call before changing a buffer which is unmodified.
|
|
|
1969 The functions are run using the `run-hooks' function.
|
|
|
1970 */ );
|
|
|
1971 Vfirst_change_hook = Qnil;
|
|
|
1972
|
|
|
1973 #if 0 /* FSFmacs */
|
|
|
1974 xxDEFVAR_LISP ("transient-mark-mode", &Vtransient_mark_mode /*
|
|
|
1975 *Non-nil means deactivate the mark when the buffer contents change.
|
|
|
1976 */ );
|
|
|
1977 Vtransient_mark_mode = Qnil;
|
|
183
|
1978 #endif /* FSFmacs */
|
|
0
|
1979
|
|
|
1980 DEFVAR_INT ("undo-threshold", &undo_threshold /*
|
|
|
1981 Keep no more undo information once it exceeds this size.
|
|
|
1982 This threshold is applied when garbage collection happens.
|
|
|
1983 The size is counted as the number of bytes occupied,
|
|
|
1984 which includes both saved text and other data.
|
|
|
1985 */ );
|
|
|
1986 undo_threshold = 20000;
|
|
|
1987
|
|
|
1988 DEFVAR_INT ("undo-high-threshold", &undo_high_threshold /*
|
|
|
1989 Don't keep more than this much size of undo information.
|
|
|
1990 A command which pushes past this size is itself forgotten.
|
|
|
1991 This threshold is applied when garbage collection happens.
|
|
|
1992 The size is counted as the number of bytes occupied,
|
|
|
1993 which includes both saved text and other data.
|
|
|
1994 */ );
|
|
|
1995 undo_high_threshold = 30000;
|
|
|
1996
|
|
|
1997 DEFVAR_LISP ("inhibit-read-only", &Vinhibit_read_only /*
|
|
|
1998 *Non-nil means disregard read-only status of buffers or characters.
|
|
|
1999 If the value is t, disregard `buffer-read-only' and all `read-only'
|
|
|
2000 text properties. If the value is a list, disregard `buffer-read-only'
|
|
|
2001 and disregard a `read-only' extent property or text property if the
|
|
|
2002 property value is a member of the list.
|
|
|
2003 */ );
|
|
|
2004 Vinhibit_read_only = Qnil;
|
|
|
2005
|
|
|
2006 DEFVAR_LISP ("kill-buffer-query-functions", &Vkill_buffer_query_functions /*
|
|
|
2007 List of functions called with no args to query before killing a buffer.
|
|
|
2008 */ );
|
|
|
2009 Vkill_buffer_query_functions = Qnil;
|
|
|
2010
|
|
146
|
2011 DEFVAR_BOOL ("delete-auto-save-files", &delete_auto_save_files /*
|
|
0
|
2012 *Non-nil means delete auto-save file when a buffer is saved or killed.
|
|
|
2013 */ );
|
|
146
|
2014 delete_auto_save_files = 1;
|
|
0
|
2015 }
|
|
|
2016
|
|
183
|
2017 /* DOC is ignored because it is snagged and recorded externally
|
|
0
|
2018 * by make-docfile */
|
|
|
2019 /* Renamed from DEFVAR_PER_BUFFER because FSFmacs D_P_B takes
|
|
|
2020 * a bogus extra arg, which confuses an otherwise identical make-docfile.c */
|
|
|
2021 /* Declaring this stuff as const produces 'Cannot reinitialize' messages
|
|
|
2022 from SunPro C's fix-and-continue feature (a way neato feature that
|
|
|
2023 makes debugging unbelievably more bearable) */
|
|
185
|
2024 #define DEFVAR_BUFFER_LOCAL(lname, field_name) do { \
|
|
|
2025 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2026 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2027 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2028 SYMVAL_CURRENT_BUFFER_FORWARD }, 0 }; \
|
|
0
|
2029 defvar_buffer_local ((lname), &I_hate_C); \
|
|
|
2030 } while (0)
|
|
|
2031
|
|
185
|
2032 #define DEFVAR_BUFFER_LOCAL_MAGIC(lname, field_name, magicfun) do { \
|
|
|
2033 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2034 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2035 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2036 SYMVAL_CURRENT_BUFFER_FORWARD }, magicfun }; \
|
|
0
|
2037 defvar_buffer_local ((lname), &I_hate_C); \
|
|
|
2038 } while (0)
|
|
|
2039
|
|
185
|
2040 #define DEFVAR_CONST_BUFFER_LOCAL(lname, field_name) do { \
|
|
|
2041 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2042 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2043 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2044 SYMVAL_CONST_CURRENT_BUFFER_FORWARD }, 0 }; \
|
|
0
|
2045 defvar_buffer_local ((lname), &I_hate_C); \
|
|
|
2046 } while (0)
|
|
|
2047
|
|
185
|
2048 #define DEFVAR_CONST_BUFFER_LOCAL_MAGIC(lname, field_name, magicfun) do{\
|
|
|
2049 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2050 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2051 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2052 SYMVAL_CONST_CURRENT_BUFFER_FORWARD }, magicfun }; \
|
|
0
|
2053 defvar_buffer_local ((lname), &I_hate_C); \
|
|
|
2054 } while (0)
|
|
|
2055
|
|
|
2056 static void
|
|
183
|
2057 defvar_buffer_local (CONST char *namestring,
|
|
0
|
2058 CONST struct symbol_value_forward *m)
|
|
|
2059 {
|
|
|
2060 int offset = ((char *)symbol_value_forward_forward (m)
|
|
|
2061 - (char *)&buffer_local_flags);
|
|
|
2062
|
|
|
2063 defvar_mumble (namestring, m, sizeof (*m));
|
|
|
2064
|
|
183
|
2065 *((Lisp_Object *)(offset + (char *)XBUFFER (Vbuffer_local_symbols)))
|
|
0
|
2066 = intern (namestring);
|
|
|
2067 }
|
|
|
2068
|
|
183
|
2069 /* DOC is ignored because it is snagged and recorded externally
|
|
0
|
2070 * by make-docfile */
|
|
185
|
2071 #define DEFVAR_BUFFER_DEFAULTS(lname, field_name) do { \
|
|
|
2072 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2073 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2074 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2075 SYMVAL_DEFAULT_BUFFER_FORWARD }, 0 }; \
|
|
0
|
2076 defvar_mumble ((lname), &I_hate_C, sizeof (I_hate_C)); \
|
|
|
2077 } while (0)
|
|
|
2078
|
|
185
|
2079 #define DEFVAR_BUFFER_DEFAULTS_MAGIC(lname, field_name, magicfun) do { \
|
|
|
2080 static CONST_IF_NOT_DEBUG struct symbol_value_forward I_hate_C \
|
|
211
|
2081 = { { { symbol_value_forward_lheader_initializer, \
|
|
185
|
2082 (struct lcrecord_header *) &(buffer_local_flags.field_name), 69 }, \
|
|
|
2083 SYMVAL_DEFAULT_BUFFER_FORWARD }, magicfun }; \
|
|
0
|
2084 defvar_mumble ((lname), &I_hate_C, sizeof (I_hate_C)); \
|
|
|
2085 } while (0)
|
|
|
2086
|
|
|
2087 static void
|
|
|
2088 nuke_all_buffer_slots (struct buffer *b, Lisp_Object zap)
|
|
|
2089 {
|
|
|
2090 zero_lcrecord (b);
|
|
|
2091
|
|
|
2092 #define MARKED_SLOT(x) b->x = (zap);
|
|
|
2093 #include "bufslots.h"
|
|
|
2094 #undef MARKED_SLOT
|
|
|
2095 }
|
|
|
2096
|
|
|
2097 void
|
|
|
2098 complex_vars_of_buffer (void)
|
|
|
2099 {
|
|
|
2100 /* Make sure all markable slots in buffer_defaults
|
|
185
|
2101 are initialized reasonably, so mark_buffer won't choke. */
|
|
|
2102 struct buffer *defs = alloc_lcrecord_type (struct buffer, lrecord_buffer);
|
|
|
2103 struct buffer *syms = alloc_lcrecord_type (struct buffer, lrecord_buffer);
|
|
0
|
2104
|
|
|
2105 staticpro (&Vbuffer_defaults);
|
|
|
2106 staticpro (&Vbuffer_local_symbols);
|
|
|
2107 XSETBUFFER (Vbuffer_defaults, defs);
|
|
|
2108 XSETBUFFER (Vbuffer_local_symbols, syms);
|
|
183
|
2109
|
|
0
|
2110 nuke_all_buffer_slots (syms, Qnil);
|
|
|
2111 nuke_all_buffer_slots (defs, Qnil);
|
|
|
2112 defs->text = &defs->own_text;
|
|
|
2113 syms->text = &syms->own_text;
|
|
183
|
2114
|
|
0
|
2115 /* Set up the non-nil default values of various buffer slots.
|
|
185
|
2116 Must do these before making the first buffer. */
|
|
0
|
2117 defs->major_mode = Qfundamental_mode;
|
|
|
2118 defs->mode_name = QSFundamental;
|
|
|
2119 defs->abbrev_table = Qnil; /* real default setup by Lisp code */
|
|
|
2120 defs->downcase_table = Vascii_downcase_table;
|
|
|
2121 defs->upcase_table = Vascii_upcase_table;
|
|
|
2122 defs->case_canon_table = Vascii_canon_table;
|
|
|
2123 defs->case_eqv_table = Vascii_eqv_table;
|
|
70
|
2124 #ifdef MULE
|
|
|
2125 defs->mirror_downcase_table = Vmirror_ascii_downcase_table;
|
|
|
2126 defs->mirror_upcase_table = Vmirror_ascii_upcase_table;
|
|
|
2127 defs->mirror_case_canon_table = Vmirror_ascii_canon_table;
|
|
|
2128 defs->mirror_case_eqv_table = Vmirror_ascii_eqv_table;
|
|
272
|
2129 defs->category_table = Vstandard_category_table;
|
|
183
|
2130 #endif /* MULE */
|
|
0
|
2131 defs->syntax_table = Vstandard_syntax_table;
|
|
70
|
2132 defs->mirror_syntax_table =
|
|
|
2133 XCHAR_TABLE (Vstandard_syntax_table)->mirror_table;
|
|
0
|
2134 defs->modeline_format = build_string ("%-"); /* reset in loaddefs.el */
|
|
|
2135 defs->case_fold_search = Qt;
|
|
|
2136 defs->selective_display_ellipses = Qt;
|
|
|
2137 defs->tab_width = make_int (8);
|
|
|
2138 defs->ctl_arrow = Qt;
|
|
|
2139 defs->fill_column = make_int (70);
|
|
|
2140 defs->left_margin = Qzero;
|
|
272
|
2141 defs->saved_size = Qzero; /* lisp code wants int-or-nil */
|
|
0
|
2142 defs->modtime = 0;
|
|
|
2143 defs->auto_save_modified = 0;
|
|
|
2144 defs->auto_save_failure_time = -1;
|
|
|
2145 defs->invisibility_spec = Qt;
|
|
183
|
2146
|
|
207
|
2147 defs->indirect_children = Qnil;
|
|
|
2148 syms->indirect_children = Qnil;
|
|
|
2149
|
|
0
|
2150 {
|
|
|
2151 /* 0 means var is always local. Default used only at creation.
|
|
|
2152 * -1 means var is always local. Default used only at reset and
|
|
|
2153 * creation.
|
|
|
2154 * -2 means there's no lisp variable corresponding to this slot
|
|
|
2155 * and the default is only used at creation.
|
|
|
2156 * -3 means no Lisp variable. Default used only at reset and creation.
|
|
|
2157 * >0 is mask. Var is local if ((buffer->local_var_flags & mask) != 0)
|
|
|
2158 * Otherwise default is used.
|
|
|
2159 */
|
|
|
2160 Lisp_Object always_local_no_default = make_int (0);
|
|
|
2161 Lisp_Object always_local_resettable = make_int (-1);
|
|
|
2162 Lisp_Object resettable = make_int (-3);
|
|
183
|
2163
|
|
0
|
2164 /* Assign the local-flags to the slots that have default values.
|
|
|
2165 The local flag is a bit that is used in the buffer
|
|
|
2166 to say that it has its own local value for the slot.
|
|
|
2167 The local flag bits are in the local_var_flags slot of the
|
|
|
2168 buffer. */
|
|
183
|
2169
|
|
0
|
2170 nuke_all_buffer_slots (&buffer_local_flags, make_int (-2));
|
|
|
2171 buffer_local_flags.filename = always_local_no_default;
|
|
|
2172 buffer_local_flags.directory = always_local_no_default;
|
|
|
2173 buffer_local_flags.backed_up = always_local_no_default;
|
|
272
|
2174 buffer_local_flags.saved_size = always_local_no_default;
|
|
0
|
2175 buffer_local_flags.auto_save_file_name = always_local_no_default;
|
|
|
2176 buffer_local_flags.read_only = always_local_no_default;
|
|
183
|
2177
|
|
0
|
2178 buffer_local_flags.major_mode = always_local_resettable;
|
|
|
2179 buffer_local_flags.mode_name = always_local_resettable;
|
|
|
2180 buffer_local_flags.undo_list = always_local_no_default;
|
|
|
2181 #if 0 /* FSFmacs */
|
|
|
2182 buffer_local_flags.mark_active = always_local_resettable;
|
|
|
2183 #endif
|
|
|
2184 buffer_local_flags.point_before_scroll = always_local_resettable;
|
|
|
2185 buffer_local_flags.file_truename = always_local_no_default;
|
|
|
2186 buffer_local_flags.invisibility_spec = always_local_resettable;
|
|
|
2187 buffer_local_flags.file_format = always_local_resettable;
|
|
|
2188 buffer_local_flags.generated_modeline_string = always_local_no_default;
|
|
183
|
2189
|
|
0
|
2190 buffer_local_flags.keymap = resettable;
|
|
|
2191 buffer_local_flags.downcase_table = resettable;
|
|
|
2192 buffer_local_flags.upcase_table = resettable;
|
|
|
2193 buffer_local_flags.case_canon_table = resettable;
|
|
|
2194 buffer_local_flags.case_eqv_table = resettable;
|
|
|
2195 buffer_local_flags.syntax_table = resettable;
|
|
70
|
2196 #ifdef MULE
|
|
|
2197 buffer_local_flags.category_table = resettable;
|
|
|
2198 #endif
|
|
183
|
2199
|
|
0
|
2200 buffer_local_flags.modeline_format = make_int (1);
|
|
|
2201 buffer_local_flags.abbrev_mode = make_int (2);
|
|
|
2202 buffer_local_flags.overwrite_mode = make_int (4);
|
|
|
2203 buffer_local_flags.case_fold_search = make_int (8);
|
|
|
2204 buffer_local_flags.auto_fill_function = make_int (0x10);
|
|
|
2205 buffer_local_flags.selective_display = make_int (0x20);
|
|
|
2206 buffer_local_flags.selective_display_ellipses = make_int (0x40);
|
|
|
2207 buffer_local_flags.tab_width = make_int (0x80);
|
|
|
2208 buffer_local_flags.truncate_lines = make_int (0x100);
|
|
|
2209 buffer_local_flags.ctl_arrow = make_int (0x200);
|
|
|
2210 buffer_local_flags.fill_column = make_int (0x400);
|
|
|
2211 buffer_local_flags.left_margin = make_int (0x800);
|
|
|
2212 buffer_local_flags.abbrev_table = make_int (0x1000);
|
|
|
2213 #ifdef REGION_CACHE_NEEDS_WORK
|
|
|
2214 buffer_local_flags.cache_long_line_scans = make_int (0x2000);
|
|
|
2215 #endif
|
|
259
|
2216 #ifdef FILE_CODING
|
|
284
|
2217 buffer_local_flags.buffer_file_coding_system = make_int (0x4000);
|
|
70
|
2218 #endif
|
|
183
|
2219
|
|
0
|
2220 /* #### Warning, 0x4000000 (that's six zeroes) is the largest number
|
|
|
2221 currently allowable due to the XINT() handling of this value.
|
|
|
2222 With some rearrangement you can get 4 more bits. */
|
|
|
2223 }
|
|
|
2224
|
|
|
2225 DEFVAR_BUFFER_DEFAULTS ("default-modeline-format", modeline_format /*
|
|
|
2226 Default value of `modeline-format' for buffers that don't override it.
|
|
|
2227 This is the same as (default-value 'modeline-format).
|
|
|
2228 */ );
|
|
|
2229
|
|
|
2230 DEFVAR_BUFFER_DEFAULTS ("default-abbrev-mode", abbrev_mode /*
|
|
|
2231 Default value of `abbrev-mode' for buffers that do not override it.
|
|
|
2232 This is the same as (default-value 'abbrev-mode).
|
|
|
2233 */ );
|
|
|
2234
|
|
|
2235 DEFVAR_BUFFER_DEFAULTS ("default-ctl-arrow", ctl_arrow /*
|
|
|
2236 Default value of `ctl-arrow' for buffers that do not override it.
|
|
|
2237 This is the same as (default-value 'ctl-arrow).
|
|
|
2238 */ );
|
|
|
2239
|
|
|
2240 #if 0 /* #### make this a specifier! */
|
|
|
2241 DEFVAR_BUFFER_DEFAULTS ("default-display-direction", display_direction /*
|
|
|
2242 Default display-direction for buffers that do not override it.
|
|
|
2243 This is the same as (default-value 'display-direction).
|
|
|
2244 Note: This is not yet implemented.
|
|
|
2245 */ );
|
|
|
2246 #endif
|
|
|
2247
|
|
|
2248 DEFVAR_BUFFER_DEFAULTS ("default-truncate-lines", truncate_lines /*
|
|
|
2249 Default value of `truncate-lines' for buffers that do not override it.
|
|
|
2250 This is the same as (default-value 'truncate-lines).
|
|
|
2251 */ );
|
|
|
2252
|
|
|
2253 DEFVAR_BUFFER_DEFAULTS ("default-fill-column", fill_column /*
|
|
|
2254 Default value of `fill-column' for buffers that do not override it.
|
|
|
2255 This is the same as (default-value 'fill-column).
|
|
|
2256 */ );
|
|
|
2257
|
|
|
2258 DEFVAR_BUFFER_DEFAULTS ("default-left-margin", left_margin /*
|
|
|
2259 Default value of `left-margin' for buffers that do not override it.
|
|
|
2260 This is the same as (default-value 'left-margin).
|
|
|
2261 */ );
|
|
|
2262
|
|
|
2263 DEFVAR_BUFFER_DEFAULTS ("default-tab-width", tab_width /*
|
|
|
2264 Default value of `tab-width' for buffers that do not override it.
|
|
|
2265 This is the same as (default-value 'tab-width).
|
|
|
2266 */ );
|
|
|
2267
|
|
|
2268 DEFVAR_BUFFER_DEFAULTS ("default-case-fold-search", case_fold_search /*
|
|
|
2269 Default value of `case-fold-search' for buffers that don't override it.
|
|
|
2270 This is the same as (default-value 'case-fold-search).
|
|
|
2271 */ );
|
|
|
2272
|
|
|
2273 DEFVAR_BUFFER_LOCAL ("modeline-format", modeline_format /*
|
|
|
2274 Template for displaying modeline for current buffer.
|
|
|
2275 Each buffer has its own value of this variable.
|
|
|
2276 Value may be a string, a symbol or a list or cons cell.
|
|
|
2277 For a symbol, its value is used (but it is ignored if t or nil).
|
|
|
2278 A string appearing directly as the value of a symbol is processed verbatim
|
|
|
2279 in that the %-constructs below are not recognized.
|
|
|
2280 For a glyph, it is inserted as is.
|
|
|
2281 For a list whose car is a symbol, the symbol's value is taken,
|
|
|
2282 and if that is non-nil, the cadr of the list is processed recursively.
|
|
|
2283 Otherwise, the caddr of the list (if there is one) is processed.
|
|
|
2284 For a list whose car is a string or list, each element is processed
|
|
|
2285 recursively and the results are effectively concatenated.
|
|
|
2286 For a list whose car is an integer, the cdr of the list is processed
|
|
|
2287 and padded (if the number is positive) or truncated (if negative)
|
|
|
2288 to the width specified by that number.
|
|
|
2289 For a list whose car is an extent, the cdr of the list is processed
|
|
|
2290 normally but the results are displayed using the face of the
|
|
|
2291 extent, and mouse clicks over this section are processed using the
|
|
|
2292 keymap of the extent. (In addition, if the extent has a help-echo
|
|
|
2293 property, that string will be echoed when the mouse moves over this
|
|
|
2294 section.) See `generated-modeline-string' for more information.
|
|
|
2295 For a list whose car is a face, the cdr of the list is processed
|
|
|
2296 normally but the results will be displayed using the face in the car.
|
|
|
2297 For a list whose car is a keymap, the cdr of the list is processed
|
|
|
2298 normally but the keymap will apply for mouse clicks over the results,
|
|
|
2299 in addition to `modeline-map'. Nested keymap specifications are
|
|
|
2300 handled properly.
|
|
|
2301 A string is printed verbatim in the modeline except for %-constructs:
|
|
|
2302 (%-constructs are processed when the string is the entire modeline-format
|
|
|
2303 or when it is found in a cons-cell or a list)
|
|
|
2304 %b -- print buffer name. %c -- print the current column number.
|
|
|
2305 %f -- print visited file name.
|
|
|
2306 %* -- print %, * or hyphen. %+ -- print *, % or hyphen.
|
|
|
2307 % means buffer is read-only and * means it is modified.
|
|
|
2308 For a modified read-only buffer, %* gives % and %+ gives *.
|
|
|
2309 %s -- print process status. %l -- print the current line number.
|
|
|
2310 %S -- print name of selected frame (only meaningful under X Windows).
|
|
|
2311 %p -- print percent of buffer above top of window, or Top, Bot or All.
|
|
|
2312 %P -- print percent of buffer above bottom of window, perhaps plus Top,
|
|
|
2313 or print Bottom or All.
|
|
|
2314 %n -- print Narrow if appropriate.
|
|
110
|
2315 %C -- under XEmacs/mule, print the mnemonic for `buffer-file-coding-system'.
|
|
0
|
2316 %[ -- print one [ for each recursive editing level. %] similar.
|
|
|
2317 %% -- print %. %- -- print infinitely many dashes.
|
|
14
|
2318 Decimal digits after the % specify field width to which to pad.
|
|
|
2319 */ );
|
|
0
|
2320
|
|
|
2321 DEFVAR_BUFFER_DEFAULTS ("default-major-mode", major_mode /*
|
|
|
2322 *Major mode for new buffers. Defaults to `fundamental-mode'.
|
|
|
2323 nil here means use current buffer's major mode.
|
|
|
2324 */ );
|
|
|
2325
|
|
|
2326 DEFVAR_BUFFER_DEFAULTS ("fundamental-mode-abbrev-table", abbrev_table /*
|
|
|
2327 The abbrev table of mode-specific abbrevs for Fundamental Mode.
|
|
|
2328 */ );
|
|
|
2329
|
|
|
2330 DEFVAR_BUFFER_LOCAL ("major-mode", major_mode /*
|
|
|
2331 Symbol for current buffer's major mode.
|
|
|
2332 */ );
|
|
|
2333
|
|
|
2334 DEFVAR_BUFFER_LOCAL ("mode-name", mode_name /*
|
|
|
2335 Pretty name of current buffer's major mode (a string).
|
|
|
2336 */ );
|
|
|
2337
|
|
|
2338 DEFVAR_BUFFER_LOCAL ("abbrev-mode", abbrev_mode /*
|
|
|
2339 Non-nil turns on automatic expansion of abbrevs as they are inserted.
|
|
|
2340 Automatically becomes buffer-local when set in any fashion.
|
|
|
2341 */ );
|
|
|
2342
|
|
|
2343 DEFVAR_BUFFER_LOCAL ("case-fold-search", case_fold_search /*
|
|
|
2344 *Non-nil if searches should ignore case.
|
|
|
2345 Automatically becomes buffer-local when set in any fashion.
|
|
70
|
2346
|
|
|
2347 BUG: Under XEmacs/Mule, translations to or from non-ASCII characters
|
|
|
2348 (this includes chars in the range 128 - 255) are ignored by
|
|
|
2349 the string/buffer-searching routines. Thus, `case-fold-search'
|
|
|
2350 will not correctly conflate a-umlaut and A-umlaut even if the
|
|
|
2351 case tables call for this.
|
|
0
|
2352 */ );
|
|
|
2353
|
|
|
2354 DEFVAR_BUFFER_LOCAL ("fill-column", fill_column /*
|
|
|
2355 *Column beyond which automatic line-wrapping should happen.
|
|
|
2356 Automatically becomes buffer-local when set in any fashion.
|
|
|
2357 */ );
|
|
|
2358
|
|
|
2359 DEFVAR_BUFFER_LOCAL ("left-margin", left_margin /*
|
|
|
2360 *Column for the default indent-line-function to indent to.
|
|
|
2361 Linefeed indents to this column in Fundamental mode.
|
|
|
2362 Automatically becomes buffer-local when set in any fashion.
|
|
|
2363 Do not confuse this with the specifier `left-margin-width';
|
|
|
2364 that controls the size of a margin that is displayed outside
|
|
|
2365 of the text area.
|
|
|
2366 */ );
|
|
|
2367
|
|
|
2368 DEFVAR_BUFFER_LOCAL_MAGIC ("tab-width", tab_width /*
|
|
|
2369 *Distance between tab stops (for display of tab characters), in columns.
|
|
|
2370 Automatically becomes buffer-local when set in any fashion.
|
|
|
2371 */ , redisplay_variable_changed);
|
|
|
2372
|
|
|
2373 DEFVAR_BUFFER_LOCAL_MAGIC ("ctl-arrow", ctl_arrow /*
|
|
|
2374 *Non-nil means display control chars with uparrow.
|
|
|
2375 Nil means use backslash and octal digits.
|
|
|
2376 An integer means characters >= ctl-arrow are assumed to be printable, and
|
|
|
2377 will be displayed as a single glyph.
|
|
|
2378 Any other value is the same as 160 - the code SPC with the high bit on.
|
|
|
2379
|
|
|
2380 The interpretation of this variable is likely to change in the future.
|
|
|
2381
|
|
|
2382 Automatically becomes buffer-local when set in any fashion.
|
|
|
2383 This variable does not apply to characters whose display is specified
|
|
|
2384 in the current display table (if there is one).
|
|
|
2385 */ , redisplay_variable_changed);
|
|
|
2386
|
|
|
2387 #if 0 /* #### Make this a specifier! */
|
|
|
2388 xxDEFVAR_BUFFER_LOCAL ("display-direction", display_direction /*
|
|
|
2389 *Non-nil means lines in the buffer are displayed right to left.
|
|
|
2390 Nil means left to right. (Not yet implemented.)
|
|
|
2391 */ );
|
|
183
|
2392 #endif /* Not yet implemented */
|
|
0
|
2393
|
|
|
2394 DEFVAR_BUFFER_LOCAL_MAGIC ("truncate-lines", truncate_lines /*
|
|
|
2395 *Non-nil means do not display continuation lines;
|
|
|
2396 give each line of text one frame line.
|
|
|
2397 Automatically becomes buffer-local when set in any fashion.
|
|
|
2398
|
|
|
2399 Note that this is overridden by the variable
|
|
|
2400 `truncate-partial-width-windows' if that variable is non-nil
|
|
|
2401 and this buffer is not full-frame width.
|
|
2
|
2402 */ , redisplay_variable_changed);
|
|
0
|
2403
|
|
|
2404 DEFVAR_BUFFER_LOCAL ("default-directory", directory /*
|
|
|
2405 Name of default directory of current buffer. Should end with slash.
|
|
|
2406 Each buffer has its own value of this variable.
|
|
|
2407 */ );
|
|
|
2408
|
|
259
|
2409 #ifdef FILE_CODING
|
|
110
|
2410 DEFVAR_BUFFER_DEFAULTS ("default-buffer-file-coding-system", buffer_file_coding_system /*
|
|
|
2411 Default value of `buffer-file-coding-system' for buffers that do not override it.
|
|
|
2412 This is the same as (default-value 'buffer-file-coding-system).
|
|
70
|
2413 This value is used both for buffers without associated files and
|
|
|
2414 for buffers whose files do not have any apparent coding system.
|
|
110
|
2415 See `buffer-file-coding-system'.
|
|
70
|
2416 */ );
|
|
|
2417
|
|
110
|
2418 DEFVAR_BUFFER_LOCAL ("buffer-file-coding-system", buffer_file_coding_system /*
|
|
70
|
2419 *Current coding system for the current buffer.
|
|
120
|
2420 When the buffer is written out into a file, this coding system will be
|
|
|
2421 used for the encoding. Automatically buffer-local when set in any
|
|
|
2422 fashion. This is normally set automatically when a file is loaded in
|
|
|
2423 based on the determined coding system of the file (assuming that
|
|
207
|
2424 `buffer-file-coding-system-for-read' is set to `undecided', which
|
|
|
2425 calls for automatic determination of the file's coding system).
|
|
120
|
2426 Normally the modeline indicates the current file coding system using
|
|
|
2427 its mnemonic abbreviation.
|
|
70
|
2428
|
|
|
2429 The default value for this variable (which is normally used for
|
|
|
2430 buffers without associated files) is also used when automatic
|
|
|
2431 detection of a file's encoding is called for and there was no
|
|
|
2432 discernable encoding in the file (i.e. it was entirely or almost
|
|
|
2433 entirely ASCII). The default value should generally *not* be set to
|
|
|
2434 nil (equivalent to `no-conversion'), because if extended characters
|
|
|
2435 are ever inserted into the buffer, they will be lost when the file is
|
|
|
2436 written out. A good choice is `iso-2022-8' (the simple ISO 2022 8-bit
|
|
|
2437 encoding), which will write out ASCII and Latin-1 characters in the
|
|
|
2438 standard (and highly portable) fashion and use standard escape
|
|
|
2439 sequences for other charsets. Another reasonable choice is
|
|
|
2440 `escape-quoted', which is equivalent to `iso-2022-8' but prefixes
|
|
|
2441 certain control characters with ESC to make sure they are not
|
|
|
2442 interpreted as escape sequences when read in. This latter coding
|
|
185
|
2443 system results in more "correct" output in the presence of control
|
|
70
|
2444 characters in the buffer, in the sense that when read in again using
|
|
|
2445 the same coding system, the result will virtually always match the
|
|
|
2446 original contents of the buffer, which is not the case with
|
|
|
2447 `iso-2022-8'; but the output is less portable when dealing with binary
|
|
|
2448 data -- there may be stray ESC characters when the file is read by
|
|
|
2449 another program.
|
|
|
2450
|
|
110
|
2451 `buffer-file-coding-system' does *not* control the coding system used when
|
|
|
2452 a file is read in. Use the variables `buffer-file-coding-system-for-read'
|
|
|
2453 and `buffer-file-coding-system-alist' for that. From a Lisp program, if
|
|
70
|
2454 you wish to unilaterally specify the coding system used for one
|
|
|
2455 particular operation, you should bind the variable
|
|
108
|
2456 `coding-system-for-read' rather than changing the other two
|
|
70
|
2457 variables just mentioned, which are intended to be used for
|
|
261
|
2458 global environment specification.
|
|
|
2459 */ );
|
|
259
|
2460 #endif
|
|
70
|
2461
|
|
0
|
2462 DEFVAR_BUFFER_LOCAL ("auto-fill-function", auto_fill_function /*
|
|
|
2463 Function called (if non-nil) to perform auto-fill.
|
|
|
2464 It is called after self-inserting a space at a column beyond `fill-column'.
|
|
|
2465 Each buffer has its own value of this variable.
|
|
|
2466 NOTE: This variable is not an ordinary hook;
|
|
|
2467 It may not be a list of functions.
|
|
|
2468 */ );
|
|
|
2469
|
|
|
2470 DEFVAR_BUFFER_LOCAL ("buffer-file-name", filename /*
|
|
|
2471 Name of file visited in current buffer, or nil if not visiting a file.
|
|
|
2472 Each buffer has its own value of this variable.
|
|
|
2473 */ );
|
|
|
2474
|
|
|
2475 #if 0 /* FSFmacs */
|
|
|
2476 /*
|
|
|
2477 Abbreviated truename of file visited in current buffer, or nil if none.
|
|
|
2478 The truename of a file is calculated by `file-truename'
|
|
|
2479 and then abbreviated with `abbreviate-file-name'.
|
|
|
2480 Each buffer has its own value of this variable.
|
|
|
2481 */
|
|
|
2482 #endif /* FSFmacs */
|
|
|
2483
|
|
|
2484 DEFVAR_BUFFER_LOCAL ("buffer-file-truename", file_truename /*
|
|
183
|
2485 The real name of the file visited in the current buffer,
|
|
|
2486 or nil if not visiting a file. This is the result of passing
|
|
|
2487 buffer-file-name to the `file-truename' function. Every buffer has
|
|
|
2488 its own value of this variable. This variable is automatically
|
|
|
2489 maintained by the functions that change the file name associated
|
|
0
|
2490 with a buffer.
|
|
|
2491 */ );
|
|
|
2492
|
|
|
2493 DEFVAR_BUFFER_LOCAL ("buffer-auto-save-file-name", auto_save_file_name /*
|
|
|
2494 Name of file for auto-saving current buffer,
|
|
|
2495 or nil if buffer should not be auto-saved.
|
|
|
2496 Each buffer has its own value of this variable.
|
|
|
2497 */ );
|
|
|
2498
|
|
|
2499 DEFVAR_BUFFER_LOCAL ("buffer-read-only", read_only /*
|
|
|
2500 Non-nil if this buffer is read-only.
|
|
|
2501 Each buffer has its own value of this variable.
|
|
|
2502 */ );
|
|
|
2503
|
|
|
2504 DEFVAR_BUFFER_LOCAL ("buffer-backed-up", backed_up /*
|
|
|
2505 Non-nil if this buffer's file has been backed up.
|
|
|
2506 Backing up is done before the first time the file is saved.
|
|
|
2507 Each buffer has its own value of this variable.
|
|
|
2508 */ );
|
|
|
2509
|
|
272
|
2510 DEFVAR_BUFFER_LOCAL ("buffer-saved-size", saved_size /*
|
|
0
|
2511 Length of current buffer when last read in, saved or auto-saved.
|
|
|
2512 0 initially.
|
|
|
2513 Each buffer has its own value of this variable.
|
|
|
2514 */ );
|
|
|
2515
|
|
|
2516 DEFVAR_BUFFER_LOCAL_MAGIC ("selective-display", selective_display /*
|
|
|
2517 Non-nil enables selective display:
|
|
|
2518 Integer N as value means display only lines
|
|
|
2519 that start with less than n columns of space.
|
|
|
2520 A value of t means, after a ^M, all the rest of the line is invisible.
|
|
|
2521 Then ^M's in the file are written into files as newlines.
|
|
|
2522
|
|
|
2523 Automatically becomes buffer-local when set in any fashion.
|
|
|
2524 */, redisplay_variable_changed);
|
|
|
2525
|
|
|
2526 #ifndef old
|
|
|
2527 DEFVAR_BUFFER_LOCAL_MAGIC ("selective-display-ellipses",
|
|
|
2528 selective_display_ellipses /*
|
|
|
2529 t means display ... on previous line when a line is invisible.
|
|
|
2530 Automatically becomes buffer-local when set in any fashion.
|
|
|
2531 */, redisplay_variable_changed);
|
|
|
2532 #endif
|
|
|
2533
|
|
|
2534 DEFVAR_BUFFER_LOCAL ("local-abbrev-table", abbrev_table /*
|
|
|
2535 Local (mode-specific) abbrev table of current buffer.
|
|
|
2536 */ );
|
|
|
2537
|
|
|
2538 DEFVAR_BUFFER_LOCAL ("overwrite-mode", overwrite_mode /*
|
|
|
2539 Non-nil if self-insertion should replace existing text.
|
|
|
2540 The value should be one of `overwrite-mode-textual',
|
|
|
2541 `overwrite-mode-binary', or nil.
|
|
|
2542 If it is `overwrite-mode-textual', self-insertion still
|
|
|
2543 inserts at the end of a line, and inserts when point is before a tab,
|
|
|
2544 until the tab is filled in.
|
|
|
2545 If `overwrite-mode-binary', self-insertion replaces newlines and tabs too.
|
|
|
2546 Automatically becomes buffer-local when set in any fashion.
|
|
278
|
2547
|
|
|
2548 Normally, you shouldn't modify this variable by hand, but use the functions
|
|
|
2549 `overwrite-mode' and `binary-overwrite-mode' instead. However, you can
|
|
|
2550 customize the default value from the options menu.
|
|
0
|
2551 */ );
|
|
|
2552
|
|
|
2553 #if 0 /* FSFmacs */
|
|
|
2554 /* Adds the following to the doc string for buffer-undo-list:
|
|
|
2555
|
|
|
2556 An entry (nil PROPERTY VALUE BEG . END) indicates that a text property
|
|
|
2557 was modified between BEG and END. PROPERTY is the property name,
|
|
|
2558 and VALUE is the old value.
|
|
|
2559 */
|
|
183
|
2560 #endif /* FSFmacs */
|
|
0
|
2561
|
|
|
2562 DEFVAR_BUFFER_LOCAL ("buffer-undo-list", undo_list /*
|
|
|
2563 List of undo entries in current buffer.
|
|
|
2564 Recent changes come first; older changes follow newer.
|
|
|
2565
|
|
|
2566 An entry (BEG . END) represents an insertion which begins at
|
|
|
2567 position BEG and ends at position END.
|
|
|
2568
|
|
|
2569 An entry (TEXT . POSITION) represents the deletion of the string TEXT
|
|
|
2570 from (abs POSITION). If POSITION is positive, point was at the front
|
|
|
2571 of the text being deleted; if negative, point was at the end.
|
|
|
2572
|
|
|
2573 An entry (t HIGH . LOW) indicates that the buffer previously had
|
|
185
|
2574 "unmodified" status. HIGH and LOW are the high and low 16-bit portions
|
|
0
|
2575 of the visited file's modification time, as of that time. If the
|
|
|
2576 modification time of the most recent save is different, this entry is
|
|
|
2577 obsolete.
|
|
|
2578
|
|
|
2579 An entry of the form EXTENT indicates that EXTENT was attached in
|
|
|
2580 the buffer. Undoing an entry of this form detaches EXTENT.
|
|
|
2581
|
|
|
2582 An entry of the form (EXTENT START END) indicates that EXTENT was
|
|
|
2583 detached from the buffer. Undoing an entry of this form attaches
|
|
|
2584 EXTENT from START to END.
|
|
|
2585
|
|
|
2586 An entry of the form POSITION indicates that point was at the buffer
|
|
|
2587 location given by the integer. Undoing an entry of this form places
|
|
|
2588 point at POSITION.
|
|
|
2589
|
|
|
2590 nil marks undo boundaries. The undo command treats the changes
|
|
|
2591 between two undo boundaries as a single step to be undone.
|
|
|
2592
|
|
|
2593 If the value of the variable is t, undo information is not recorded.
|
|
|
2594 */ );
|
|
|
2595
|
|
|
2596 #if 0 /* FSFmacs */
|
|
|
2597 xxDEFVAR_BUFFER_LOCAL ("mark-active", mark_active /*
|
|
|
2598 Non-nil means the mark and region are currently active in this buffer.
|
|
|
2599 Automatically local in all buffers.
|
|
|
2600 */ );
|
|
183
|
2601 #endif /* FSFmacs */
|
|
0
|
2602
|
|
|
2603 #ifdef REGION_CACHE_NEEDS_WORK
|
|
|
2604 xxDEFVAR_BUFFER_LOCAL ("cache-long-line-scans", cache_long_line_scans /*
|
|
|
2605 Non-nil means that Emacs should use caches to handle long lines more quickly.
|
|
|
2606 This variable is buffer-local, in all buffers.
|
|
|
2607
|
|
|
2608 Normally, the line-motion functions work by scanning the buffer for
|
|
|
2609 newlines. Columnar operations (like move-to-column and
|
|
|
2610 compute-motion) also work by scanning the buffer, summing character
|
|
|
2611 widths as they go. This works well for ordinary text, but if the
|
|
|
2612 buffer's lines are very long (say, more than 500 characters), these
|
|
|
2613 motion functions will take longer to execute. Emacs may also take
|
|
|
2614 longer to update the display.
|
|
|
2615
|
|
|
2616 If cache-long-line-scans is non-nil, these motion functions cache the
|
|
|
2617 results of their scans, and consult the cache to avoid rescanning
|
|
|
2618 regions of the buffer until the text is modified. The caches are most
|
|
|
2619 beneficial when they prevent the most searching---that is, when the
|
|
|
2620 buffer contains long lines and large regions of characters with the
|
|
|
2621 same, fixed screen width.
|
|
|
2622
|
|
|
2623 When cache-long-line-scans is non-nil, processing short lines will
|
|
|
2624 become slightly slower (because of the overhead of consulting the
|
|
|
2625 cache), and the caches will use memory roughly proportional to the
|
|
|
2626 number of newlines and characters whose screen width varies.
|
|
|
2627
|
|
|
2628 The caches require no explicit maintenance; their accuracy is
|
|
|
2629 maintained internally by the Emacs primitives. Enabling or disabling
|
|
|
2630 the cache should not affect the behavior of any of the motion
|
|
|
2631 functions; it should only affect their performance.
|
|
|
2632 */ );
|
|
|
2633 #endif /* REGION_CACHE_NEEDS_WORK */
|
|
|
2634
|
|
|
2635 DEFVAR_BUFFER_LOCAL ("point-before-scroll", point_before_scroll /*
|
|
|
2636 Value of point before the last series of scroll operations, or nil.
|
|
|
2637 */ );
|
|
|
2638
|
|
|
2639 DEFVAR_BUFFER_LOCAL ("buffer-file-format", file_format /*
|
|
|
2640 List of formats to use when saving this buffer.
|
|
|
2641 Formats are defined by `format-alist'. This variable is
|
|
|
2642 set when a file is visited. Automatically local in all buffers.
|
|
|
2643 */ );
|
|
|
2644
|
|
|
2645 DEFVAR_BUFFER_LOCAL_MAGIC ("buffer-invisibility-spec", invisibility_spec /*
|
|
|
2646 Invisibility spec of this buffer.
|
|
|
2647 The default is t, which means that text is invisible
|
|
|
2648 if it has (or is covered by an extent with) a non-nil `invisible' property.
|
|
|
2649 If the value is a list, a text character is invisible if its `invisible'
|
|
|
2650 property is an element in that list.
|
|
|
2651 If an element is a cons cell of the form (PROP . ELLIPSIS),
|
|
|
2652 then characters with property value PROP are invisible,
|
|
|
2653 and they have an ellipsis as well if ELLIPSIS is non-nil.
|
|
|
2654 Note that the actual characters used for the ellipsis are controllable
|
|
185
|
2655 using `invisible-text-glyph', and default to "...".
|
|
0
|
2656 */, redisplay_variable_changed);
|
|
|
2657
|
|
|
2658 DEFVAR_CONST_BUFFER_LOCAL ("generated-modeline-string",
|
|
|
2659 generated_modeline_string /*
|
|
|
2660 String of characters in this buffer's modeline as of the last redisplay.
|
|
|
2661 Each time the modeline is recomputed, the resulting characters are
|
|
|
2662 stored in this string, which is resized as necessary. You may not
|
|
|
2663 set this variable, and modifying this string will not change the
|
|
|
2664 modeline; you have to change `modeline-format' if you want that.
|
|
|
2665
|
|
|
2666 For each extent in `modeline-format' that is encountered when
|
|
|
2667 processing the modeline, a corresponding extent is placed in
|
|
|
2668 `generated-modeline-string' and covers the text over which the
|
|
|
2669 extent in `modeline-format' applies. The extent in
|
|
|
2670 `generated-modeline-string' is made a child of the extent in
|
|
|
2671 `modeline-format', which means that it inherits all properties from
|
|
|
2672 that extent. Note that the extents in `generated-modeline-string'
|
|
|
2673 are managed automatically. You should not explicitly put any extents
|
|
|
2674 in `generated-modeline-string'; if you do, they will disappear the
|
|
|
2675 next time the modeline is processed.
|
|
|
2676
|
|
|
2677 For extents in `modeline-format', the following properties are currently
|
|
|
2678 handled:
|
|
|
2679
|
|
|
2680 `face'
|
|
|
2681 Affects the face of the modeline text. Currently, faces do
|
|
|
2682 not merge properly; only the most recently encountered face
|
|
|
2683 is used. This is a bug.
|
|
|
2684
|
|
|
2685 `keymap'
|
|
|
2686 Affects the disposition of button events over the modeline
|
|
|
2687 text. Multiple applicable keymaps *are* handled properly,
|
|
|
2688 and `modeline-map' still applies to any events that don't
|
|
|
2689 have bindings in extent-specific keymaps.
|
|
|
2690
|
|
|
2691 `help-echo'
|
|
|
2692 If a string, causes the string to be displayed when the mouse
|
|
|
2693 moves over the text.
|
|
|
2694 */ );
|
|
|
2695
|
|
|
2696 /* Check for DEFVAR_BUFFER_LOCAL without initializing the corresponding
|
|
|
2697 slot of buffer_local_flags and vice-versa. Must be done after all
|
|
|
2698 DEFVAR_BUFFER_LOCAL() calls. */
|
|
|
2699 #define MARKED_SLOT(slot) \
|
|
|
2700 if ((XINT (buffer_local_flags.slot) != -2 && \
|
|
272
|
2701 XINT (buffer_local_flags.slot) != -3) \
|
|
0
|
2702 != !(NILP (XBUFFER (Vbuffer_local_symbols)->slot))) \
|
|
|
2703 abort ()
|
|
|
2704 #include "bufslots.h"
|
|
|
2705 #undef MARKED_SLOT
|
|
|
2706
|
|
|
2707 {
|
|
272
|
2708 Lisp_Object scratch = Fget_buffer_create (QSscratch);
|
|
|
2709 Fset_buffer (scratch);
|
|
0
|
2710 /* Want no undo records for *scratch* until after Emacs is dumped */
|
|
|
2711 Fbuffer_disable_undo (scratch);
|
|
|
2712 }
|
|
|
2713 }
|
|
|
2714
|
|
|
2715 void
|
|
288
|
2716 init_initial_directory (void)
|
|
0
|
2717 {
|
|
|
2718 /* This function can GC */
|
|
288
|
2719
|
|
0
|
2720 char *pwd;
|
|
371
|
2721 struct stat dotstat, pwdstat;
|
|
|
2722 int rc;
|
|
0
|
2723
|
|
288
|
2724 initial_directory[0] = 0;
|
|
0
|
2725
|
|
163
|
2726 /* If PWD is accurate, use it instead of calling getcwd. This is faster
|
|
0
|
2727 when PWD is right, and may avoid a fatal error. */
|
|
371
|
2728 if ((pwd = getenv ("PWD")) != 0 && IS_DIRECTORY_SEP (*pwd)
|
|
|
2729 && stat (pwd, &pwdstat) == 0
|
|
|
2730 && stat (".", &dotstat) == 0
|
|
|
2731 && dotstat.st_ino == pwdstat.st_ino
|
|
|
2732 && dotstat.st_dev == pwdstat.st_dev
|
|
|
2733 && (int) strlen (pwd) < MAXPATHLEN)
|
|
288
|
2734 strcpy (initial_directory, pwd);
|
|
|
2735 else if (getcwd (initial_directory, MAXPATHLEN) == NULL)
|
|
163
|
2736 fatal ("`getcwd' failed: %s\n", strerror (errno));
|
|
0
|
2737
|
|
371
|
2738 /* Maybe this should really use some standard subroutine
|
|
0
|
2739 whose definition is filename syntax dependent. */
|
|
371
|
2740 rc = strlen (initial_directory);
|
|
|
2741 if (!(IS_DIRECTORY_SEP (initial_directory[rc - 1])))
|
|
|
2742 {
|
|
|
2743 initial_directory[rc] = DIRECTORY_SEP;
|
|
|
2744 initial_directory[rc + 1] = '\0';
|
|
|
2745 }
|
|
209
|
2746 /* XEmacs change: store buffer's default directory
|
|
|
2747 using prefered (i.e. as defined at compile-time)
|
|
|
2748 directory separator. --marcpa */
|
|
|
2749 #ifdef DOS_NT
|
|
|
2750 #define CORRECT_DIR_SEPS(s) \
|
|
|
2751 do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \
|
|
|
2752 else unixtodos_filename (s); \
|
|
|
2753 } while (0)
|
|
272
|
2754
|
|
288
|
2755 CORRECT_DIR_SEPS(initial_directory);
|
|
209
|
2756 #endif
|
|
288
|
2757 }
|
|
|
2758
|
|
|
2759 void
|
|
|
2760 init_buffer (void)
|
|
|
2761 {
|
|
|
2762 /* This function can GC */
|
|
|
2763
|
|
|
2764 Fset_buffer (Fget_buffer_create (QSscratch));
|
|
|
2765
|
|
371
|
2766 current_buffer->directory = build_string (initial_directory);
|
|
0
|
2767
|
|
|
2768 #if 0 /* FSFmacs */
|
|
|
2769 /* #### is this correct? */
|
|
|
2770 temp = get_minibuffer (0);
|
|
|
2771 XBUFFER (temp)->directory = current_buffer->directory;
|
|
183
|
2772 #endif /* FSFmacs */
|
|
0
|
2773 }
|
