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428
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1 /* Definitions of marked slots in buffers
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2 Copyright (C) 1990, 1992, 1993 Free Software Foundation, Inc.
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771
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3 Copyright (C) 2001 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Mule 2.0, FSF 19.30. Split out of buffer.h. */
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23
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24 /* Authorship:
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25
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26 FSF: long ago (part of buffer.h).
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27 JWZ: separated out from buffer.h, early in Lemacs.
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28 XEmacs: a few other changes.
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29 */
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30
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617
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31 /* We define the Lisp_Objects in the buffer structure in a separate file
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32 because there are numerous places we want to iterate over them, such
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33 as when defining them in the structure, initializing them, or marking
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34 them.
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35
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36 To use, define MARKED_SLOT before including this file. No need to
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37 undefine; that happens automatically. */
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428
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38
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39 #ifndef BUFFER_SLOTS_FIRST_NAME
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40 #define BUFFER_SLOTS_FIRST_NAME name
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41 #endif
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42
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43 /* The name of this buffer. */
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44 MARKED_SLOT (name);
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45
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46 /* The name of the file visited in this buffer, or nil. */
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47 MARKED_SLOT (filename);
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48
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49 /* Dir for expanding relative file names. */
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50 MARKED_SLOT (directory);
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51
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52 /* True iff this buffer has been backed up (if you write to the
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53 visited file and it hasn't been backed up, then a backup will
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54 be made). */
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55 /* #### This isn't really used by the C code, so could be deleted. */
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56 MARKED_SLOT (backed_up);
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57
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58 /* Length of file when last read or saved.
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59 This is not in the struct buffer_text
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60 because it's not used in indirect buffers at all. */
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61 MARKED_SLOT (saved_size);
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62
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63 /* File name used for auto-saving this buffer.
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64 This is not in the struct buffer_text
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65 because it's not used in indirect buffers at all. */
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66 MARKED_SLOT (auto_save_file_name);
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67
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68 /* Non-nil if buffer read-only. */
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69 MARKED_SLOT (read_only);
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70
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71 /* "The mark". This is a marker which may
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72 point into this buffer or may point nowhere. */
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73 MARKED_SLOT (mark);
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74
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75 /* Alist of elements (SYMBOL . VALUE-IN-THIS-BUFFER)
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76 for all per-buffer variables of this buffer.
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77 Specifically, this lists those variables that have
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78 a buffer-local value in this buffer: i.e. those
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79 whose value does not shadow the default value.
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80 (Remember that for any particular variable created
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81 with `make-local-variable' or `make-variable-buffer-local',
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82 it will have a per-buffer value in some buffers and a
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83 default value in others.)
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84
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85 Variables declared in C with DEFVAR_BUFFER_LOCAL() (i.e.
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86 those stored in the struct buffer) are not listed here. */
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87 MARKED_SLOT (local_var_alist);
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88
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89 /* Symbol naming major mode (eg, lisp-mode). */
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90 MARKED_SLOT (major_mode);
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91
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92 /* Pretty name of major mode (eg, "Lisp"). */
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93 MARKED_SLOT (mode_name);
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94
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95 /* Modeline element that controls format of modeline. */
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96 MARKED_SLOT (modeline_format);
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97
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98 /* Keys that are bound local to this buffer. */
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99 MARKED_SLOT (keymap);
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100
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101 /* This buffer's local abbrev table. */
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102 MARKED_SLOT (abbrev_table);
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103 /* This buffer's syntax table. */
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104 MARKED_SLOT (syntax_table);
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105 /* Massaged values from the syntax table, for faster lookup. */
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106 MARKED_SLOT (mirror_syntax_table);
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107
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108 #ifdef MULE
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109 /* This buffer's category table. */
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110 MARKED_SLOT (category_table);
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111 #endif /* MULE */
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112 /* This buffer's coding system. */
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113 MARKED_SLOT (buffer_file_coding_system);
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114 /* Values of several buffer-local variables.
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115
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116 tab-width is buffer-local so that redisplay can find it
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117 in buffers that are not current */
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118 MARKED_SLOT (case_fold_search);
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119 MARKED_SLOT (tab_width);
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120 MARKED_SLOT (fill_column);
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121 MARKED_SLOT (left_margin);
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122
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123 /* Function to call when insert space past fill column. */
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124 MARKED_SLOT (auto_fill_function);
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125
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446
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126 /* Case table for case-conversion in this buffer. */
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127 MARKED_SLOT (case_table);
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128 /* It contais following char-tables: */
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129 /* Char-table maps each char into its lower-case version. */
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428
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130 /* Char-table mapping each char to its upper-case version. */
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131 /* Char-table for conversion for case-folding search. */
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132 /* Char-table of equivalences for case-folding search. */
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133
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134 /* #### This ought to be a specifier: */
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135 /* Non-nil means do not display continuation lines. */
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136 MARKED_SLOT (truncate_lines);
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137 /* #### This ought to be a specifier: */
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138 /* #### Better yet, it ought to be junked. It really sucks. */
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139 /* Non-nil means display ctl chars with uparrow. */
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140 MARKED_SLOT (ctl_arrow);
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141 /* #### This ought to be a specifier: */
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142 /* #### Better yet, it ought to be junked. It really sucks. */
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143 /* Non-nil means do selective display;
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144 see doc string in syms_of_buffer (buffer.c) for details. */
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145 MARKED_SLOT (selective_display);
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146 /* #### This ought to be a specifier: */
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147 /* #### Better yet, it ought to be junked. It really sucks. */
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148 /* Non-nil means show ... at end of line followed by invisible lines. */
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149 MARKED_SLOT (selective_display_ellipses);
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150 /* Alist of (FUNCTION . STRING) for each minor mode enabled in buffer. */
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151 /* Unused: MARKED_SLOT (minor_modes); */
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152 /* t if "self-insertion" should overwrite */
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153 MARKED_SLOT (overwrite_mode);
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154 /* non-nil means abbrev mode is on. Expand abbrevs automatically. */
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155 MARKED_SLOT (abbrev_mode);
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156
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157 /* No display table here. It's a specifier. */
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158 #if 0 /* FSFmacs */
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159 /* t means the mark and region are currently active. */
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160 MARKED_SLOT (mark_active);
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161 #endif
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162
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163 /* Changes in the buffer are recorded here for undo.
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164 t means don't record anything.
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165 This information belongs to the base buffer of an indirect buffer,
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166 But we can't store it in the struct buffer_text
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167 because local variables have to be right in the struct buffer.
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168 So we copy it around in set_buffer_internal. */
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169 MARKED_SLOT (undo_list);
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170
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171 /* FSFmacs has overlay stuff here. We have extent info elsewhere in the
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172 struct buffer. */
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173
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442
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174 /* dedicated_frame in lisp */
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428
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175
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176 /* Lisp of symbols naming the file format used for visited file. */
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177 MARKED_SLOT (file_format);
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178
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179 #ifdef REGION_CACHE_NEEDS_WORK
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180 /* True if the newline position cache and width run cache are
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181 enabled. See search.c and indent.c. */
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182 MARKED_SLOT (cache_long_line_scans);
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183
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184 /* If the width run cache is enabled, this table contains the
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185 character widths width_run_cache (see above) assumes. When we
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186 do a thorough redisplay, we compare this against the buffer's
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187 current display table to see whether the display table has
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188 affected the widths of any characters. If it has, we
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189 invalidate the width run cache, and re-initialize width_table. */
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190 MARKED_SLOT (width_table);
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191 #endif /* REGION_CACHE_NEEDS_WORK */
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192
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193 /* A redundant copy of text.pt, in the form of a marker. Every time one
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194 is updated, so is the other.
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195 */
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196 MARKED_SLOT (point_marker);
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197
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198 /* FSFmacs has pt_marker, begv_marker, zv_marker here, used for
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199 indirect buffers. We don't need them because we handle these
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200 values directly instead of playing games with markers. */
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201
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202 /* This holds the point value before the last scroll operation.
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203 Explicitly setting point sets this to nil. */
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204 MARKED_SLOT (point_before_scroll);
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205
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771
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206 /* Truename of the visited file (via qxe_realpath()),
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428
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207 or nil. */
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208 MARKED_SLOT (file_truename);
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209
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210 /* Invisibility spec of this buffer.
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211 t => any non-nil `invisible' property means invisible.
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212 A list => `invisible' property means invisible
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213 if it is memq in that list. */
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214 MARKED_SLOT (invisibility_spec);
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215
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216 /* The string generated by formatting the modeline in this buffer. */
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217 MARKED_SLOT (generated_modeline_string);
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218
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219 /* A hash table that maps from a "generic extent" (an extent in
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220 `modeline-format') into a buffer-specific extent. */
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221 MARKED_SLOT (modeline_extent_table);
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222
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223 #ifndef BUFFER_SLOTS_LAST_NAME
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224 #define BUFFER_SLOTS_LAST_NAME modeline_extent_table
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225 #endif
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226
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617
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227 #undef MARKED_SLOT
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