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1 -*- mode:outline; minor-mode:outl-mouse -*-
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2
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3 * Introduction
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4 ==============
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5
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6 This file presents some general information about XEmacs. It is primarily
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7 about the evolution of XEmacs and its release history.
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8
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9 There are five sections.
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10
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11 Introduction................(this section) provides an introduction
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12
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13 Using Outline Mode..........briefly explains how to use outline mode
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14
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15 The History of XEmacs.......some historical notes
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16
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70
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17 What's Different?...........new or changed capabilities
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18
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19 XEmacs Release Notes........details of the changes between releases
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20
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21 New users should look at the next section on "Using Outline Mode". You will
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22 be more efficient when you can navigate quickly through this file. Users
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23 interested in some of the details of how XEmacs differs from GNU Emacs
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24 should read the section "What's Different?". Users who would to know which
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25 capabilities have been introduced in each release should look at the
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26 appropriate subsection of the "XEmacs Release Notes."
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27
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28 N.B. The term "FSF GNU Emacs" refers to any release of Emacs Version 19
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29 from the Free Software Foundation's GNU Project. (We do not say just
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30 "GNU Emacs" because Richard M. Stallman ["RMS"] thinks that this term
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31 is too generic; although we sometimes say e.g. "GNU Emacs 19.30" to refer
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32 to a specific version of FSF GNU Emacs. We do not say merely "Emacs", as
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33 RMS prefers, because that is clearly an even more generic term.) The term
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34 "XEmacs" refers to this program or to its predecessors "Era" and
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35 "Lucid Emacs". The predecessor of all these program is called "Emacs 18".
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36 When no particular version is implied, "Emacs" will be used.
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37
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38
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39 * Using Outline Mode
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40 ====================
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41
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42 This file is in outline mode, a major mode for viewing (or editing)
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43 outlines. It allows you to make parts of the text temporarily invisible so
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44 that you can see just the overall structure of the outline.
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45
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46 There are two ways of using outline mode: with keys or with menus. Using
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47 outline mode with menus is the simplest and is just as effective as using
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48 keystrokes. There are menus for outline mode on the menubar as well as in
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49 popup menus activated by pressing mouse button 3.
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50
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70
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51 Experiment with the menu commands. Menu items under "Headings" allow
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52 you to navigate from heading to heading. Menu items under "Show" make
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53 visible portions of the outline while menu items under "Hide" do the
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54 opposite.
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55
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56 A special minor mode called "outl-mouse" has been automatically enabled. In
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57 this minor mode, glyphs appear which, when clicked on, will alternately hide
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58 or show sections of the outline.
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59
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60 You may at any time press `C-h m' to get a listing of the outline mode key
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61 bindings. They are reproduced here:
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62
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63 Commands:
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64 C-c C-n outline-next-visible-heading move by visible headings
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65 C-c C-p outline-previous-visible-heading
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66 C-c C-f outline-forward-same-level similar but skip subheadings
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67 C-c C-b outline-backward-same-level
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68 C-c C-u outline-up-heading move from subheading to heading
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69
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70 C-c C-t make all text invisible (not headings).
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71 M-x show-all make everything in buffer visible.
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72
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73 The remaining commands are used when point is on a heading line.
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74 They apply to some of the body or subheadings of that heading.
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75 C-c C-d hide-subtree make body and subheadings invisible.
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76 C-c C-s show-subtree make body and subheadings visible.
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77 C-c tab show-children make direct subheadings visible.
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78 No effect on body, or subheadings 2 or more levels down.
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79 With arg N, affects subheadings N levels down.
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80 C-c C-c make immediately following body invisible.
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81 C-c C-e make it visible.
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82 C-c C-l make body under heading and under its subheadings invisible.
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83 The subheadings remain visible.
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84 C-c C-k make all subheadings at all levels visible.x1
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85
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86
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87 * XEmacs Release Notes
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88 ======================
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89
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90 ** Future Plans for XEmacs
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91 ==========================
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92
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104
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93 The next `feature' will be the unbundling of XEmacs into constituent
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94 installable packages.
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95
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88
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96 We are working on improving the Mule support in future releases:
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97
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104
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98 -- Other input methods, such as skk, will be supported.
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99
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100 -- Wnn support will be made more solid.
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88
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101
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102 -- More user-level documentation on using Mule.
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103
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104
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104 ** Major Differences between 20.0 and 20.1
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105
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106 *** User Interface changes.
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107
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108 The keysyms mouse-1, mouse-2, mouse-3 and down-mouse-1, down-mouse-2,
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109 and down-mouse-3 have been added for Emacs compatibility.
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110
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111 A new user customizable variable `signal-error-on-buffer-boundary' has
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112 been added. Set this to nil to avoid XEmacs usual lossage of zmacs
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113 region when moving up against a buffer boundary.
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114
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115 The logo has been changed, and the default background color is now
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116 shade of gray instead of white.
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117
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124
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118 Many packages have been add and upgraded.
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119
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120 -- Gnus-5.4.43 Courtesy of Lars Magne Ingebrigtsen
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121
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122 *** Gnus changes.
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123
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124 **** nntp.el has been totally rewritten in an asynchronous fashion.
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125
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126 **** Article prefetching functionality has been moved up into
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127 Gnus.
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128
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129 **** Scoring can now be performed with logical operators like
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130 `and', `or', `not', and parent redirection.
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131
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132 *** Article washing status can be displayed in the
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133 article mode line.
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134
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135 **** gnus.el has been split into many smaller files.
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136
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137 **** Suppression of duplicate articles based on Message-ID.
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138
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139 (setq gnus-suppress-duplicates t)
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140
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141 **** New variables for specifying what score and adapt files
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142 are to be considered home score and adapt files. See
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143 `gnus-home-score-file' and `gnus-home-adapt-files'.
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144
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145 **** Groups can inherit group parameters from parent topics.
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146
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147 **** Article editing has been revamped and is now usable.
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148
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149 **** Signatures can be recognized in more intelligent fashions.
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150 See `gnus-signature-separator' and `gnus-signature-limit'.
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151
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152 **** Summary pick mode has been made to look more nn-like.
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153 Line numbers are displayed and the `.' command can be
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154 used to pick articles.
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155
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156 **** Commands for moving the .newsrc.eld from one server to
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157 another have been added.
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158
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159 `M-x gnus-change-server'
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160
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161 **** A way to specify that "uninteresting" fields be suppressed when
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162 generating lines in buffers.
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163
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164 **** Several commands in the group buffer can be undone with
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165 `M-C-_'.
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166
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167 **** Scoring can be done on words using the new score type `w'.
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168
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169 **** Adaptive scoring can be done on a Subject word-by-word basis:
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170
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171 (setq gnus-use-adaptive-scoring '(word))
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172
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173 **** Scores can be decayed.
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174
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175 (setq gnus-decay-scores t)
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176
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177 **** Scoring can be performed using a regexp on the Date header. The
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178 Date is normalized to compact ISO 8601 format first.
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179
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180 **** A new command has been added to remove all data on articles from
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181 the native server.
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182
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183 `M-x gnus-group-clear-data-on-native-groups'
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184
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185 **** A new command for reading collections of documents
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186 (nndoc with nnvirtual on top) has been added -- `M-C-d'.
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187
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188 **** Process mark sets can be pushed and popped.
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189
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190 **** A new mail-to-news backend makes it possible to post
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191 even when the NNTP server doesn't allow posting.
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192
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193 **** A new backend for reading searches from Web search engines
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194 (DejaNews, Alta Vista, InReference) has been added.
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195
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196 Use the `G w' command in the group buffer to create such
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197 a group.
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198
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199 **** Groups inside topics can now be sorted using the standard
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200 sorting functions, and each topic can be sorted independently.
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201
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202 See the commands under the `T S' submap.
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203
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204 **** Subsets of the groups can be sorted independently.
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205
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206 See the commands under the `G P' submap.
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207
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208 **** Cached articles can be pulled into the groups.
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209
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210 Use the `Y c' command.
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211
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212 **** Score files are now applied in a more reliable order.
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213
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214 **** Reports on where mail messages end up can be generated.
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215
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216 `M-x nnmail-split-history'
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217
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218 **** More hooks and functions have been added to remove junk
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219 from incoming mail before saving the mail.
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220
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221 See `nnmail-prepare-incoming-header-hook'.
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222
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223 **** The nnml mail backend now understands compressed article files.
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224
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225 -- custom-1.82 Courtesy of Per Abrahamsen
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226
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227 The Customize library enables Emacs Lisp programmers to specify types
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228 of their variables, so that the users can customize them. For
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229 example, the old declaration
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230
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231 (defvar foo-blurgoze nil
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232 "*non-nil means that foo will act very blurgozely.")
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233
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234 now becomes:
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235
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236 (defcustom foo-blurgoze nil
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237 "*non-nil means that foo will act very blurgozely."
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238 :type 'boolean)
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239
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240 Now the user can type `M-x customize RET foo-blurgoze RET' to
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241 customize the variable. Other, more complex data structures can be
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242 represented and customized too, e.g.
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243
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244 (defcustom foo-hairy-alist '((somekey . "somestring")
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245 (otherkey . (foo-doit))
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246 (thirdkey . [1 2 3]))
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247 "*Alist describing the hairy options of foo package.
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248 The CAR of each element is a symbol, whereas the CDR can be either a
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249 string, a form to evaluate, or a vector of integers."
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250 :type '(repeat (cons (symbol :tag "Key")
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251 (choice string
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252 (vector (repeat :inline t integer))
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253 sexp))))
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254
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255 The user will be able to add and remove the entries to the list, as
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256 well as save the settings to his/her `.emacs'.
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257
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258 The Customize now has its submenu at the top of the Options menu, and
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259 is the preferred way to change XEmacs settings. Tens of packages have
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260 been converted to take advantage of the Customize features, including:
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261 Gnus, Message, Supercite, Psgml, Comint, Calendar, W3, cc-mode (and
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262 many other programming language modes), ispell.el, ps-print.el,
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263 id-select.el, most of the programming language modes, and many many
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264 more.
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265
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266 been converted to use the Customize features.
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267
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268 -- mic-paren.el-1.3.1 Courtesy of Mikael Sjödin
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269 -- hyperbole-4.022 Courtesy of Bob Weiner
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270
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271 -- W3-3.0.80 Courtesy of William Perry
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272
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273 Version 3 of Emacs/W3, the Emacs World Wide Web browser, has been
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274 included. It is much faster than any of the previous versions, and
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275 contains numerous other features.
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276
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277 -- AUCTeX-9.7k Courtesy of Per Abrahamsen
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278
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279 AUC TeX is a comprehensive customizable integrated environment for
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280 writing input files for LaTeX using GNU Emacs.
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281
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282 AUC TeX lets you run TeX/LaTeX and other LaTeX-related tools, such
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283 as a output filters or post processor from inside Emacs. Especially
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284 `running LaTeX' is interesting, as AUC TeX lets you browse through the
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285 errors TeX reported, while it moves the cursor directly to the reported
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286 error, and displays some documentation for that particular error. This
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287 will even work when the document is spread over several files.
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288
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289 AUC TeX automatically indents your `LaTeX-source', not only as you
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290 write it -- you can also let it indent and format an entire document.
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291 It has a special outline feature, which can greatly help you `getting an
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292 overview' of a document.
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293
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294 Apart from these special features, AUC TeX provides an large range of
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295 handy Emacs macros, which in several different ways can help you write
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296 your LaTeX documents fast and painless.
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297
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298 -- hm--html-menus-5.3 Courtesy of Heiko Muenkel
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299 -- python-mode.el-2.90 Courtesy of Barry Warsaw
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300 -- balloon-help-1.04 Courtesy of Kyle Jones
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301 -- xrdb-mode.el-1.21 Courtesy of Barry Warsaw
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302 -- igrep.el-2.56 Courtesy of Kevin Rodgers
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303 -- frame-icon.el Courtesy of Michael Lamoureux and Bob Weiner
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304 -- itimer.el-1.01 Courtesy of Kyle Jones
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305
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306 -- redo.el-1.01 Courtesy of Kyle Jones
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307
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308 redo.el is a package that implements true redo mechanism in XEmacs
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309 buffers. You can bind the `redo' command to a convenient key to use
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310 it.
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311
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312 Emacs' normal undo system allows you to undo an arbitrary
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313 number of buffer changes. These undos are recorded as ordinary
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314 buffer changes themselves. So when you break the chain of
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315 undos by issuing some other command, you can then undo all
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316 the undos. The chain of recorded buffer modifications
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317 therefore grows without bound, truncated only at garbage
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318 collection time.
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319
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320 The redo/undo system is different in two ways:
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321 1. The undo/redo command chain is only broken by a buffer
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322 modification. You can move around the buffer or switch
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323 buffers and still come back and do more undos or redos.
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324 2. The `redo' command rescinds the most recent undo without
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325 recording the change as a _new_ buffer change. It
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326 completely reverses the effect of the undo, which
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327 includes making the chain of buffer modification records
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328 shorter by one, to counteract the effect of the undo
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329 command making the record list longer by one.
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330
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331 -- VM-6.15 Courtesy of Kyle Jones
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332 -- OO-Browser-2.10 Courtesy of Bob Weiner
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333 -- viper-2.93 Courtesy of Michael Kifer
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334 -- ediff-2.64 Courtesy of Michael Kifer
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335
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336 -- edmacro.el-3.05 Courtesy of Dave Gillespie, port to XEmacs by
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337 Hrvoje Niksic.
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338
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339 Edmacro is a utility that provides easy editing of keyboard macros.
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340 Press `C-x C-k' to invoke the `edit-kbd-macro' command that lets you
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341 edit and define new keyboard macros. You can also edit the last 100
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342 keystrokes and insert them into a macro to be bound to a key. The
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343 macros can be conveniently dumped to `.emacs' file.
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344
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345 The `read-kbd-macro' function is now available in XEmacs. The short
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346 form `kbd' that evaluates at compile-time can be used instead.
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347
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348 -- detached-minibuf.el Courtesy of Alvin Shelton
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349 -- whitespace-mode.el Courtesy of Heiko Muenkel
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350 -- winmgr-mode.el Courtesy of David Konerding, Stefan Strobel & Barry Warsaw
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351
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352 -- xmine.el-1.4 Courtesy of Jens Lautenbacher
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353
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354 XEmacs now includes a minesweeper game with a full-featured graphics
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355 and mouse interface. Invoke with `M-x xmine'.
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356
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357 -- fast-lock.el-3.11.01 Courtesy of Simon Marshall
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358 -- lazy-lock.el-1.16 Courtesy of Simon Marshall
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359 -- browse-cltl2.el-1.1 Courtesy of Holger Schauer
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360 -- eldoc.el-1.8 Courtesy of Noah Friedman
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361 -- tm-7.105 Courtesy of MORIOKA Tomohiko
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362
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363 -- efs-1.15 courtesy of Andy Norman and Michael Sperber
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364
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365 EFS is now integrated with XEmacs, and replaces the old ange-ftp. It
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366 has many more features, including info documentation, support for many
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367 different FTP servers, and integration with dired.
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368
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369 -- verilog-mode.el Courtesy of Michael McNamara & Adrian Aichner
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370
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371 -- overlay.el Courtesy of Joseph Nuspl
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372
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373 The overlay support in XEmacs is now functional. Overlays are
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374 implemented on top of native extents, and can be used as a GNU
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375 Emacs-compatible way of changing display properties.
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376
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104
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377 *** Other changes
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378
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379 First alpha level support of MS Windows NT is available courtesy of
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380 David Hobley.
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381
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382 Wnn/egg now has initial support Courtesy of Jareth Hein.
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383
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384 The XEmacs build process has been changed to make site administration
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385 easier. See lisp/site-load.el for details.
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386
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387 Various functions that were previously disabled are now enabled like
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388 eval-expression (M-:) and upcase-region (C-x C-u)/downcase-region (C-x
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389 C-l).
|
|
|
390
|
|
88
|
391 ** Major Differences Between 19.14 and 20.0
|
|
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392
|
|
|
393 XEmacs 20.0 is the first public release to have support for MULE
|
|
|
394 (Multi-Lingual Emacs). The --with-mule configuration flag must be
|
|
|
395 used to enable Mule support.
|
|
|
396
|
|
|
397 Many bugs have been fixed. An effort has been made to eradicate all
|
|
|
398 XEmacs crashes, although we are not quite done yet. The overall
|
|
|
399 quality of XEmacs should be higher than any previous release. XEmacs
|
|
|
400 now compiles with nary a warning with some compilers.
|
|
|
401
|
|
|
402 -- Multiple character sets can be displayed in a buffer. The file
|
|
|
403 mule-doc/demo in the distribution contains a greeting in many
|
|
|
404 different languages.
|
|
|
405
|
|
|
406 -- Although the Mule work is for all languages, particular effort has
|
|
|
407 been invested in Japanese, with particular focus on Japanese users
|
|
|
408 of Sun WorkShop. Many menubar labels have been translated into
|
|
90
|
409 Japanese. Martin Buchholz, the maintainer of MULE features within
|
|
|
410 XEmacs normaly runs XEmacs in a Japanese language environment.
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|
411 Some of the other contributors are Japanese, most importantly
|
|
|
412 Morioka Tomohiko, author of the TM package, providing MIME support
|
|
|
413 for Mail and News.
|
|
88
|
414
|
|
|
415 -- Input for complex Asian languages is supported via XIM, a mechanism
|
|
|
416 introduced in X11R5 to allow applications to get localized input
|
|
|
417 without knowledge of the language. The way XIM works is that when
|
|
|
418 the locale has a complex character set, such as Japanese, and extra
|
|
|
419 minibuffer-like status window appears attached to various
|
|
|
420 application windows, and indicates the status of the input method.
|
|
|
421 Composed input in XEmacs should work the same as with other
|
|
|
422 applications. If Motif and Mule support is configured into XEmacs,
|
|
|
423 then XIM support is automatically configured in as well.
|
|
|
424
|
|
|
425 -- TM (Tools for Mime) now comes with XEmacs. This provides MIME
|
|
|
426 (Multi-purpose Internet Multi-media Extensions?) support for Mail
|
|
|
427 and News. The primary author is Morioka Tomohiko.
|
|
|
428
|
|
|
429 -- Japanese input can also be input using the `canna' input method.
|
|
|
430 This support was contributed by Morioka Tomohiko. Setting up canna
|
|
|
431 usually requires more user effort (and better knowledge of Japanese!)
|
|
|
432 than XIM, but provides a better-integrated input method.
|
|
|
433
|
|
|
434 -- A mini-tutorial on using Mule:
|
|
|
435
|
|
|
436 -- Every time data passes between XEmacs and the rest of the
|
|
|
437 environment, via file or process input or output, XEmacs must
|
|
|
438 convert between its internal multi-character representation and
|
|
|
439 the external representation (`coding system'). Many
|
|
|
440 difficulties with Mule are related to controlling these coding
|
|
|
441 system conversions.
|
|
|
442
|
|
|
443 -- file-coding-system, file-coding-system-for-read,
|
|
|
444 overriding-file-coding-system, and file-coding-system-alist
|
|
|
445 are used to determine the coding systems used on file input
|
|
|
446 and output.
|
|
|
447
|
|
|
448 -- For each process, (set-process-input-coding-system) and
|
|
|
449 (set-process-output-coding-system) determine the coding
|
|
|
450 system used for I/O from the process.
|
|
|
451
|
|
|
452 -- Many other things are encoded using pathname-coding-system:
|
|
|
453 -- file and directory names
|
|
|
454 -- window manager properties: window title, icon name
|
|
|
455 -- process names and process arguments
|
|
|
456 -- XIM input.
|
|
|
457
|
|
|
458 -- In many cases, you will want to have the same values for all
|
|
|
459 the above variables in many cases. For example, in a
|
|
|
460 Japanese environment, you will want to use the 'euc-japan
|
|
|
461 coding system consistently, except when running certain
|
|
|
462 processes that do byte-oriented, rather than
|
|
|
463 character-oriented I/O, such as gzip, or when processing Mail
|
|
|
464 or News, where ISO2022-based coding systems are the norm,
|
|
|
465 since they support multiple character sets.
|
|
|
466
|
|
|
467 -- To add support for a new language or character set, start by
|
|
|
468 trying to copy code in japanese-hooks.el.
|
|
|
469
|
|
|
470 -- The traditional pre-Mule data conversion is equivalent to the
|
|
|
471 'binary coding system under Mule. In this case all characters
|
|
|
472 are treated as iso8859-1 (i.e. characters for English + Western
|
|
|
473 European languages).
|
|
|
474
|
|
|
475 -- many fileio-related commands such as find-file and write-file
|
|
|
476 take an extra argument, coding-system, which specifies the
|
|
|
477 encoding to be used with the file on disk. For example, here is
|
|
|
478 a command that converts from the Japanese EUC to ISO2022 format:
|
|
|
479
|
|
|
480 xemacs -batch -eval '(progn (find-file
|
|
|
481 "locale-start.el.euc" (quote euc-japan)) (write-file
|
|
|
482 "locale-start.el" nil (quote iso-2022-8-unix)))'
|
|
|
483
|
|
|
484 Interactively, you can be prompted for a coding system by
|
|
|
485 providing a prefix argument to the fileio command. In
|
|
|
486 particular, C-u C-x C-f is a useful sequence to edit a file
|
|
|
487 using a particular coding system.
|
|
|
488
|
|
|
489 -- In an Asian locale (i.e. if $LANG is set to ja, ko, or zh),
|
|
|
490 XEmacs automatically sets up a language environment assuming
|
|
|
491 that the operating system encodes information in the national
|
|
|
492 version of EUC, which supports English and the national
|
|
|
493 language, but typically no other character sets.
|
|
|
494
|
|
|
495 -- Command line processing should work much better now - no more order
|
|
|
496 dependencies.
|
|
|
497
|
|
|
498 -- Many many package upgraded (thanks go to countless maintainers):
|
|
|
499
|
|
|
500 -- ediff 2.64 (Michael Kifer)
|
|
90
|
501 -- Gnus 5.2.40 (Lars Magne Ingebrigtsen)
|
|
88
|
502 -- w3 3.0.51 (Bill Perry)
|
|
90
|
503 -- ilisp 5.8 (Chris McConnell, Ivan Vasquez, Marco Antoniotti, Rick
|
|
|
504 Campbell)
|
|
88
|
505 -- VM 5.97 (Kyle Jones)
|
|
|
506 -- etags 11.78 (Francesco Potorti`)
|
|
|
507 -- ksh-mode.el 2.9
|
|
|
508 -- vhdl-mode.el 2.73 (Rod Whitby)
|
|
|
509 -- id-select.el (Bob Weiner)
|
|
|
510 -- EDT/TPU emulation modes should work now for the first time.
|
|
|
511 -- viper 2.92 (Michael Kifer) is now the `official' vi emulator for XEmacs.
|
|
|
512 -- big-menubar should work much better now.
|
|
|
513 -- mode-motion+.el 3.16
|
|
|
514 -- backup-dir 2.0 (Greg Klanderman)
|
|
|
515 -- ps-print.el-3.05 (Jacques Duthen Prestataire)
|
|
90
|
516 -- lazy-lock-1.15 (Simon Marshall)
|
|
|
517 -- reporter 3.3 (Barry Warsaw)
|
|
88
|
518 -- hm--html-menus 5.0 (Heiko Muenkel)
|
|
|
519 -- cc-mode 4.322 (Barry Warsaw)
|
|
|
520 -- elp 2.37 (Barry Warsaw)
|
|
|
521
|
|
|
522
|
|
|
523 -- Many new packages have been added:
|
|
|
524 -- m4-mode 1.8 (Andrew Csillag)
|
|
|
525 -- crisp.el - crisp/brief emulation (Gary D. Foster)
|
|
|
526 -- Johan Vroman's iso-acc.el has been ported to XEmacs by Alexandre Oliva
|
|
90
|
527 -- psgml-1.01 (Lennart Staflin, James Clark)
|
|
88
|
528 -- python-mode.el 2.83 (Barry Warsaw)
|
|
|
529 -- vrml-mode.el (Ben Wing)
|
|
90
|
530 -- enriched.el, face-menu.el (Boris Goldowsky, Michael Sperber)
|
|
|
531 -- sh-script.el (Daniel Pfeiffer)
|
|
|
532 -- decipher.el (Christopher J. Madsen)
|
|
88
|
533
|
|
|
534 -- New function x-keysym-on-keyboard-p helps determine keyboard
|
|
|
535 characteristics for key rebinding:
|
|
|
536
|
|
|
537 x-keysym-on-keyboard-p: (KEYSYM &optional DEVICE)
|
|
|
538 -- a built-in function.
|
|
|
539 Return true if KEYSYM names a key on the keyboard of DEVICE.
|
|
|
540 More precisely, return true if pressing a physical key
|
|
|
541 on the keyboard of DEVICE without any modifier keys generates KEYSYM.
|
|
|
542 Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in
|
|
|
543 /usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system.
|
|
|
544
|
|
|
545 -- Installed info files are now compressed (support courtesy of Joseph J Nuspl)
|
|
|
546
|
|
|
547 -- (load-average) works on Solaris, even if you're not root. Thanks to
|
|
|
548 Hrvoje Niksic.
|
|
|
549
|
|
|
550 -- OffiX drag-and-drop support added
|
|
|
551
|
|
|
552 -- lots of syncing with 19.34 elisp files, most by Steven Baur
|
|
70
|
553
|
|
|
554
|
|
0
|
555 ** Major Differences Between 19.13 and 19.14
|
|
|
556 ============================================
|
|
|
557
|
|
|
558 XEmacs has a new address! The canonical ftp site is now
|
|
|
559 ftp.xemacs.org:/pub/xemacs and the Web page is now at
|
|
|
560 http://www.xemacs.org/. All mailing lists now have @xemacs.org
|
|
|
561 addresses. For the time being the @cs.uiuc.edu addresses will
|
|
|
562 continue to function.
|
|
|
563
|
|
|
564 This is a major new release. Many features have been added, as well
|
|
|
565 as many bugs fixed. The Motif menubar has still _NOT_ been fixed for
|
|
|
566 19.14. You should use the Lucid menubar instead.
|
|
|
567
|
|
|
568
|
|
|
569
|
|
|
570 Major user-visible changes:
|
|
|
571 ---------------------------
|
|
|
572
|
|
|
573 -- Color support in TTY mode is provided. You have to have a TTY capable
|
|
|
574 of displaying them, such as color xterm or the console under Linux.
|
|
|
575 If your terminal type supports colors (e.g. `xterm-color'), XEmacs
|
|
|
576 will automatically notice this and start using color.
|
|
|
577
|
|
|
578 -- blink-cursor-mode enables a blinking text cursor. There is a
|
|
|
579 menubar option for this also.
|
|
|
580
|
|
|
581 -- auto-show-mode is turned on by default; this means that XEmacs
|
|
|
582 will automatically scroll a window horizontally as necessary to
|
|
|
583 keep point in view.
|
|
|
584
|
|
|
585 -- a file dialog box is provided and will be used whenever you
|
|
|
586 are prompted for a filename as a result of a menubar selection.
|
|
|
587
|
|
|
588 -- XEmacs can be compiled with built-in GIF, JPEG, and PNG support.
|
|
|
589 The GIF libraries are supplied with XEmacs; for JPEG and PNG,
|
|
|
590 you have to obtain the appropriate libraries (this is well-
|
|
|
591 documented). This makes image display much easier and faster under
|
|
|
592 W3 (the web browser) and TM (adds MIME support to VM and GNUS;
|
|
|
593 not yet included with XEmacs but will be in 19.15).
|
|
|
594
|
|
|
595 -- XEmacs provides a really nice mode (PSGML with "Wing improvements")
|
|
|
596 for editing HTML and other SGML documents. It parses the document,
|
|
|
597 and as a result it does proper indentation, can show you the context
|
|
|
598 you're in, the allowed tags at a particular position, etc.
|
|
|
599
|
|
|
600 -- XEmacs comes standard with modes for editing Java and VRML code,
|
|
|
601 including font-lock support.
|
|
|
602
|
|
|
603 -- GNUS 5.2 comes standard with XEmacs.
|
|
|
604
|
|
|
605 -- You can now embed colors in the modeline, with different sections
|
|
|
606 of the modeline responding appropriately to various mouse gestures:
|
|
|
607 For example, clicking on the "read-only" indicator toggles the
|
|
|
608 read-only status of a buffer, and clicking on the buffer name
|
|
|
609 cycles to the next buffer. Pressing button3 on these areas brings
|
|
|
610 up a popup menu of appropriate commands.
|
|
|
611
|
|
|
612 -- There is a much nicer mode for completion lists and such.
|
|
|
613 At the minibuffer prompt, if you hit page-up or Meta-V, the completion
|
|
|
614 buffer will be displayed (if it wasn't already), you're moved into
|
|
|
615 it, and can move around and select filenames using the arrow keys
|
|
|
616 and the return key. Rather than a cursor, a filename is highlighted,
|
|
|
617 and the arrow keys change which filename is highlighted.
|
|
|
618
|
|
|
619 -- The edit-faces subsystem has also been much improved, in somewhat
|
|
|
620 similar ways to the completion list improvements.
|
|
|
621
|
|
|
622 -- Many improvements were made to the multi-device support.
|
|
|
623 We now provide an auxiliary utility called "gnuattach" that
|
|
|
624 lets you connect to an existing XEmacs process and display
|
|
|
625 a TTY frame on the current TTY connection, and commands
|
|
|
626 `make-frame-on-display' (with a corresponding menubar entry)
|
|
|
627 and `make-frame-on-tty' for more easily creating frames on
|
|
|
628 new TTY or X connections.
|
|
|
629
|
|
|
630 -- We have incorporated nearly all of the functionality of GNU Emacs
|
|
|
631 19.30 into XEmacs. This includes support for lazy-loaded
|
|
|
632 byte code and documentation strings, improved paragraph filling,
|
|
|
633 better support for margins within documents, v19 regular expression
|
|
|
634 routines (including caching of compiled regexps), etc.
|
|
|
635
|
|
|
636 -- In accordance with GNU Emacs 19.30, the following key binding
|
|
|
637 changes have been made:
|
|
|
638
|
|
|
639 C-x ESC -> C-x ESC ESC
|
|
|
640 ESC ESC -> ESC :
|
|
|
641 ESC ESC ESC is "abort anything" (keyboard-escape-quit).
|
|
|
642
|
|
|
643 -- All major packages have been updated to their latest-released
|
|
|
644 versions.
|
|
|
645
|
|
|
646 -- XEmacs now gracefully handles a full colormap (such as typically
|
|
|
647 results when running Netscape). The nearest available color
|
|
|
648 is automatically substituted.
|
|
|
649
|
|
|
650 -- Many bug fixes to the subprocess/PTY code, ps-print, menubar
|
|
|
651 functions, `set-text-properties', DEC Alpha support, toolbar
|
|
|
652 resizing (the "phantom VM toolbar" bug), and lots and lots
|
|
|
653 of other things were made.
|
|
|
654
|
|
|
655 -- The ncurses library (a replacement for curses, found especially
|
|
|
656 under Linux) is supported, and will be automatically used
|
|
|
657 if it can be found.
|
|
|
658
|
|
|
659 -- You can now undo in the minibuffer.
|
|
|
660
|
|
|
661 -- Surrogate minibuffers now work. These are also sometimes referred
|
|
|
662 to as "global" minibuffers.
|
|
|
663
|
|
|
664 -- font-lock has been merged with GNU Emacs 19.30, improved defaults
|
|
|
665 have been added, and changes have been made to the way it is
|
|
|
666 configured.
|
|
|
667
|
|
|
668 -- Many, many modes have menubar entries for them.
|
|
|
669
|
|
|
670 -- `recover-session' lets you recover whatever files can be recovered
|
|
|
671 after your XEmacs process has died unexpectedly.
|
|
|
672
|
|
|
673 -- C-h k followed by a toolbar button press correctly reports
|
|
|
674 the binding of the toolbar button.
|
|
|
675
|
|
|
676 -- `function-key-map', `key-translation-map', and `keyboard-translate-table'
|
|
|
677 are now correctly implemented.
|
|
|
678
|
|
|
679 -- `show-message-log' (and its menubar entry under Edit) have been
|
|
|
680 removed; instead use `view-lossage' (and its menubar entry under
|
|
|
681 Help).
|
|
|
682
|
|
|
683 -- There is a standard menubar entry for specifying which browser
|
|
|
684 (Netscape, W3, Mosaic, etc.) to use when dispatching URL's
|
|
|
685 in mail, Usenet news, etc.
|
|
|
686
|
|
|
687 -- Improved native sound support under Linux.
|
|
|
688
|
|
|
689 -- Lots of other things we forgot to mention.
|
|
|
690
|
|
|
691
|
|
|
692
|
|
|
693 Significant Lisp-level changes:
|
|
|
694 -------------------------------
|
|
|
695
|
|
|
696 -- Many improvements to the E-Lisp documentation have been made;
|
|
|
697 it should now be up-to-date and complete in nearly all cases.
|
|
|
698
|
|
|
699 -- XEmacs has extensive documentation on its internals, for
|
|
|
700 would-be C hackers.
|
|
|
701
|
|
|
702 -- Common-Lisp support (the CL package) is now dumped standard
|
|
|
703 into XEmacs. No more need for (require 'cl) or anything
|
|
|
704 like that.
|
|
|
705
|
|
|
706 -- Full support for extents and text properties over strings is
|
|
|
707 provided.
|
|
|
708
|
|
|
709 -- The extent properties `start-open', `end-open', `start-closed',
|
|
|
710 and `end-closed' now work correctly w.r.t. text properties.
|
|
|
711
|
|
|
712 -- The `face' property of extents and text properties can now
|
|
|
713 be a list.
|
|
|
714
|
|
116
|
715 -- The `mouse-face' property from GNU Emacs is now supported.
|
|
0
|
716 It supersedes the `highlight' property.
|
|
|
717
|
|
116
|
718 -- `enriched' and `facemenu' packages from GNU Emacs have been ported.
|
|
0
|
719
|
|
|
720 -- New functions for easier creation of dialog boxes:
|
|
|
721 `get-dialog-box-response', `message-box', and `message-or-box'.
|
|
|
722
|
|
|
723 -- `function-min-args' and `function-max-args' allow you to determine
|
|
|
724 the minimum and maximum allowed arguments for any type of
|
|
|
725 function (i.e. subr, lambda expression, byte-compiled function, etc.).
|
|
|
726
|
|
|
727 -- Some C-level support for doing E-Lisp profiling is provided.
|
|
|
728 See `start-profiling', `stop-profiling', and
|
|
|
729 `pretty-print-profiling-info'.
|
|
|
730
|
|
|
731 -- `current-process-time' reports the user, system, and real times
|
|
|
732 for the currently running XEmacs process.
|
|
|
733
|
|
|
734 -- `next-window', `previous-window', `next-frame', `previous-frame',
|
|
|
735 `other-window', `get-lru-window', etc. have an extra device
|
|
|
736 argument that allows you to restrict which devices it includes
|
|
|
737 (normally all devices). Some functions that incorrectly ignored
|
|
|
738 frames on different devices (e.g. C-x 0) are fixed.
|
|
|
739
|
|
|
740 -- new functions `run-hook-with-args-until-success',
|
|
|
741 `run-hook-with-args-until-failure'.
|
|
|
742
|
|
|
743 -- generalized facility for local vs. global hooks. See `make-local-hook',
|
|
|
744 `add-hook'.
|
|
|
745
|
|
|
746 -- New functions for querying the window tree: `frame-leftmost-window',
|
|
|
747 `frame-rightmost-window', `window-first-hchild', `window-first-vchild',
|
|
|
748 `window-next-child', `window-previous-child', and `window-parent'.
|
|
|
749
|
|
|
750 -- Epoch support works. This gets you direct access to some X events
|
|
|
751 and objects (e.g. properties and property-notify events).
|
|
|
752
|
|
|
753 -- The multi-device support has been majorly revamped. There is now
|
|
|
754 a new concept of "consoles" (devices grouped together under a
|
|
|
755 common keyboard/mouse), console-local variables, and a generalized
|
|
|
756 concept of device/console connection.
|
|
|
757
|
|
|
758 -- `display-buffer' synched with GNU Emacs 19.30, giving you lots of
|
|
|
759 wondrous cruft such as
|
|
|
760 -- unsplittable frames
|
|
|
761 -- pop-up-frames, pop-up-frame-function
|
|
|
762 -- special-display-buffer-names, special-display-regexps,
|
|
|
763 special-display-function
|
|
|
764 -- same-window-buffer-names, same-window-regexps
|
|
|
765
|
|
|
766 -- XEmacs has support for accessing DBM- and/or DB-format databases,
|
|
|
767 provided that you have the appropriate libraries on your system.
|
|
|
768
|
|
|
769 -- There is a new font style: "strikethru" fonts.
|
|
|
770
|
|
|
771 -- New data type "weak list", which is a list with special
|
|
|
772 garbage-collection properties, similar to weak hash tables.
|
|
|
773
|
|
|
774 -- `set-face-parent' makes one face inherit all properties from another.
|
|
|
775
|
|
|
776 -- The junky frame parameters mechanism has been revamped as
|
|
|
777 frame properties, which a standard property-list interface.
|
|
|
778
|
|
|
779 -- Lots and lots of functions for working with property lists have
|
|
|
780 been added.
|
|
|
781
|
|
|
782 -- New functions `push-window-configuration', `pop-window-configuration',
|
|
|
783 `unpop-window-configuration' for maintain a stack of window
|
|
|
784 configurations.
|
|
|
785
|
|
|
786 -- Many fixups to the glyph code; icons and mouse pointers are now
|
|
|
787 properly merged into the glyph mechanism.
|
|
|
788
|
|
|
789 -- `set-specifier' works more sensibly, like `set-face-property'.
|
|
|
790
|
|
|
791 -- Many new specifiers for individually controlling toolbar height/width
|
|
|
792 and visibility and text cursor visibility.
|
|
|
793
|
|
|
794 -- New face `text-cursor' controls the colors of the text cursor.
|
|
|
795
|
|
|
796 -- Many new variables for turning on debug information about the
|
|
|
797 inner workings of XEmacs.
|
|
|
798
|
|
|
799 -- Hash tables can now compare their keys using `equal' or `eql'
|
|
|
800 as well as `eq'.
|
|
|
801
|
|
|
802 -- Other things too numerous to mention.
|
|
|
803
|
|
|
804
|
|
|
805
|
|
|
806 Significant configuration/build changes:
|
|
|
807 ----------------------------------------
|
|
|
808
|
|
|
809 -- You can disable TTY support, toolbar support, scrollbar support,
|
|
|
810 menubar support, and/or dialog box support at configure time
|
|
|
811 to save memory.
|
|
|
812
|
|
|
813 -- New configure option `--extra-verbose' shows the diagnostic
|
|
|
814 output from feature testing; this should help track down
|
|
|
815 problems with incorrect feature detection.
|
|
|
816
|
|
|
817 -- `dont-have-xmu' is now `with-xmu', with the reversed sense.
|
|
|
818 (It defaults to `yes'.)
|
|
|
819
|
|
|
820 -- `with-mocklisp' lets you add Mocklisp support if you really
|
|
|
821 need this.
|
|
|
822
|
|
|
823 -- `with-term' for adding TERM support for Linux users.
|
|
|
824
|
|
|
825
|
|
|
826
|
|
|
827 ** Major Differences Between 19.12 and 19.13
|
|
|
828 ============================================
|
|
|
829
|
|
|
830 This is primarily a bug-fix release. Lots of bugs have been fixed.
|
|
|
831 Hopefully only a few have been introduced. The most noteworthy bug
|
|
|
832 fixes are:
|
|
|
833
|
|
|
834 -- There should be no more problems connecting XEmacs to an X
|
|
|
835 server over SLIP or other slow connections.
|
|
|
836 -- Periodic crashes when using the Buffers menu should be gone.
|
|
|
837 -- etags would sometimes erase the current buffer; it doesn't
|
|
|
838 any more.
|
|
|
839 -- XEmacs will correctly exit if the X server dies.
|
|
|
840 -- uniconified frames are displayed properly under TVTWM.
|
|
|
841 -- Breakage in `add-menu-item' / `add-menu-button' is fixed.
|
|
|
842
|
|
|
843 The Motif menubar has _NOT_ been fixed for 19.13. You should use the
|
|
|
844 Lucid menubar instead.
|
|
|
845
|
|
|
846 Multi-device support should now be working properly. You can now open
|
|
|
847 an X device after having started out on a TTY device.
|
|
|
848
|
|
|
849 Background pixmaps now work. See `set-face-background-pixmap'.
|
|
|
850
|
|
|
851 Echo area messages are now saved to a buffer, " *Message Log*". To
|
|
|
852 see this buffer, use the command `show-message-log'. It is possible
|
|
|
853 to filter the message which are actually included by modifying the
|
|
|
854 variables `log-message-ignore-regexps' and `log-message-ignore-labels'.
|
|
|
855
|
|
|
856 You can now control which warnings you want to see. See
|
|
|
857 `display-warning-suppressed-classes' and friends.
|
|
|
858
|
|
|
859 You can now set the default location of an "other window" from the
|
|
|
860 Options menu.
|
|
|
861
|
|
|
862 "Save Options" now saves the state of all faces.
|
|
|
863
|
|
|
864 You can choose which file "Save Options" writes into; see
|
|
|
865 `save-options-file'.
|
|
|
866
|
|
|
867 XPM support is no longer required for the toolbar.
|
|
|
868
|
|
|
869 The relocating allocator is now enabled by default whenever possible.
|
|
|
870 This allows buffer memory to be returned to the system when no longer
|
|
|
871 in use which helps keep XEmacs process size down.
|
|
|
872
|
|
|
873 The ability to have captioned toolbars has been added. Currently only
|
|
|
874 the default toolbar actually has a captioned version provided. A new
|
|
|
875 specifier variable, `toolbar-buttons-captioned-p' controls whether the
|
|
|
876 toolbar is captioned.
|
|
|
877
|
|
|
878 A copy of the XEmacs FAQ is now included and is available through info.
|
|
|
879
|
|
|
880 The on-line E-Lisp reference manual has been significantly updated.
|
|
|
881
|
|
|
882 There is now audio support under Linux.
|
|
|
883
|
|
|
884 Modifier keys can now be sticky. This is controlled by the variable
|
|
|
885 `modifier-keys-are-sticky'.
|
|
|
886
|
|
|
887 manual-entry should now work correctly under Irix with the penalty of
|
|
|
888 a longer startup time the first time it is invoked. If you are having
|
|
|
889 problems with this on another system try setting
|
|
|
890 `Manual-use-subdirectory-list' to t.
|
|
|
891
|
|
|
892 make-tty-device no longer automatically creates the first frame.
|
|
|
893
|
|
|
894 Rectangular regions now work correctly.
|
|
|
895
|
|
|
896 ediff no longer sets synchronize-minibuffers to t unless you first set
|
|
|
897 ediff-synchronize-minibuffers
|
|
|
898
|
|
|
899 keyboard-translate-table has been implemented. This means that the
|
|
|
900 `enable-flow-control' command for dealing with TTY connections that
|
|
|
901 filter out ^S and ^Q now works.
|
|
|
902
|
|
|
903 You can now create frames that are initially unmapped and frames that
|
|
|
904 are "transient for another frame", meaning that they behave more like
|
|
|
905 dialog-box frames.
|
|
|
906
|
|
|
907 Other E-Lisp changes:
|
|
|
908
|
|
|
909 -- Specifier `menubar-visible-p' for controlling menubar visibility
|
|
|
910 -- Local command hooks should be set using `local-pre-command-hook'
|
|
|
911 and `local-post-command-hook' instead of making the global
|
|
|
912 equivalents be buffer-local.
|
|
|
913 -- `quit-char', `help-char', `meta-prefix-char' can be any key specifier
|
|
|
914 instead of just an integer.
|
|
|
915 -- new functions `add-async-timeout' and `disable-async-timeout'.
|
|
|
916 These let you create asynchronous timeouts, which are like
|
|
|
917 normal timeouts except that they're executed even during
|
|
|
918 running Lisp code. Use this with care!
|
|
|
919 -- `debug-on-error' and `stack-trace-on-error' now enter the debugger
|
|
|
920 only when an *unhandled* error occurs. If you want the old
|
|
|
921 behavior, use `debug-on-signal' and `stack-trace-on-signal'.
|
|
|
922 -- \U, \L, \u, \l, \E recognized specially in `replace-match'.
|
|
|
923 These are standard ex/perl commands for changing the case of
|
|
|
924 replaced text.
|
|
|
925 -- New function event-matches-key-specifier-p. This provides
|
|
|
926 a clean way of comparing keypress events with key specifiers
|
|
|
927 such as 65, (shift home), etc. without having to resort
|
|
|
928 to ugly `character-to-event' / `event-to-character' hacks.
|
|
|
929 -- New function `add-to-list'
|
|
|
930 -- New Common-Lisp functions `some', `every', `notevery', `notany',
|
|
|
931 `adjoin', `union', `intersection', `set-difference',
|
|
|
932 `set-exclusive-or', `subsetp'
|
|
|
933 -- `remove-face-property' provides a clean way of removing a
|
|
|
934 face property.
|
|
|
935
|
|
|
936 Many of the Emacs Lisp packages have been updated. Some of the new
|
|
|
937 Emacs Lisp packages ---
|
|
|
938
|
|
|
939 ada-mode: major mode for editing Ada source
|
|
|
940
|
|
|
941 arc-mode: simple editing of archives
|
|
|
942
|
|
70
|
943 auto-show-mode: automatically scrolls horizontally to keep point on-screen
|
|
0
|
944
|
|
|
945 completion: dynamic word completion mode
|
|
|
946
|
|
|
947 dabbrev: the dynamic abbrev package has been rewritten and is much
|
|
|
948 more powerful -- e.g. it searches in other buffers as well
|
|
|
949 as the current one
|
|
|
950
|
|
|
951 easymenu: menu support package
|
|
|
952
|
|
|
953 live-icon: makes frame icons represent the current frame contents
|
|
|
954
|
|
|
955 mailcrypt 3.2: mail encryption with PGP; included but v2.4 is still
|
|
70
|
956 the default
|
|
|
957
|
|
|
958 two-column: for editing two-column text
|
|
0
|
959
|
|
|
960
|
|
|
961 ** Major Differences Between 19.11 and 19.12
|
|
|
962 ============================================
|
|
|
963
|
|
|
964 This is a huge new release. Almost every aspect of XEmacs has been changed
|
|
|
965 at least somewhat. The highlights are:
|
|
|
966
|
|
|
967 -- TTY support (includes face support)
|
|
|
968 -- new redisplay engine; should be faster, less buggy, and more powerful
|
|
|
969 -- terminology change from "screen" to "frame"
|
|
|
970 -- built-in toolbar
|
|
|
971 -- toolbar support added to many packages
|
|
|
972 -- multiple device support (still in beta; improvements to come in
|
|
|
973 19.13)
|
|
|
974 -- Purify used to ensure that there are no memory leaks or memory corruption
|
|
|
975 problems
|
|
|
976 -- horizontal and vertical scrollbars in all windows
|
|
|
977 -- new Lucid (i.e. look-alike Motif) scrollbar widget
|
|
|
978 -- stay-up menus in the Lucid (look-alike Motif) menubar widget
|
|
|
979 -- 3-d modeline
|
|
|
980 -- new extents engine; should be faster, less buggy, and more powerful
|
|
|
981 -- much more powerful control over faces
|
|
|
982 -- expanded menubar
|
|
|
983 -- more work on synching with GNU Emacs 19.28
|
|
|
984 -- new packages: Hyperbole, OOBR (object browser), hm--html-menus, viper,
|
|
|
985 lazy-lock.el, ksh-mode.el, rsz-minibuf.el
|
|
|
986 -- package updates for all major packages
|
|
|
987 -- dynodump package for Solaris: provides proper undumping and portable
|
|
|
988 binaries across different OS versions and machine types
|
|
|
989 -- Greatly expanded concept of "glyphs" (pixmaps etc. in a buffer)
|
|
|
990 -- built-in support for displaying X-Faces, if the X-Face library is
|
|
|
991 available
|
|
|
992 -- built-in support for SOCKS if the SOCKS library is available
|
|
|
993 -- graceful behavior when the colormap is full (e.g. Netscape ate
|
|
|
994 all the colors)
|
|
|
995 -- built-in MD5 (secure hashing function) support
|
|
|
996
|
|
|
997
|
|
|
998 More specific information:
|
|
|
999
|
|
|
1000 *** TTY Support
|
|
|
1001 ---------------
|
|
|
1002
|
|
|
1003 The long-awaited TTY support is now available. XEmacs will start up
|
|
|
1004 in TTY mode (using the tty you started XEmacs from) if the DISPLAY
|
|
|
1005 environment variable is not set or if you use the `-nw' option.
|
|
|
1006
|
|
|
1007 Faces are available on TTY's. For a demonstration, try editing a C
|
|
|
1008 file and turning on font-lock-mode.
|
|
|
1009
|
|
|
1010 You can also connect to additional TTY's using `make-tty-device',
|
|
|
1011 whether your first frame was a TTY or an X window. This ability is
|
|
|
1012 not yet completely finished.
|
|
|
1013
|
|
|
1014 The full event-loop capabilities (processes, timeouts, etc.) are
|
|
|
1015 available on TTY's.
|
|
|
1016
|
|
|
1017
|
|
|
1018
|
|
|
1019 *** New Redisplay Engine
|
|
|
1020 ------------------------
|
|
|
1021
|
|
|
1022 The redisplay engine has been rewritten to improve its efficiency and
|
|
|
1023 to increase its functionality. It should also be significantly more
|
|
|
1024 bug-free than the previous redisplay engine.
|
|
|
1025
|
|
|
1026 A line that is not big enough to display at the bottom of the window
|
|
|
1027 will normally be clipped (so that it is partially visible) rather than
|
|
|
1028 not displayed at all. The variable `pixel-vertical-clip-threshold'
|
|
|
1029 can be used to control the minimum space that must be available for a
|
|
|
1030 line to be clipped rather than not displayed at all.
|
|
|
1031
|
|
|
1032 Tabs are displayed in such a way that things line up fairly well even
|
|
|
1033 in the presence of variable-width fonts and/or lines with
|
|
|
1034 multiply-sized fonts.
|
|
|
1035
|
|
|
1036 Display tables are implemented, through the specifier variable
|
|
|
1037 `current-display-table'. They can be buffer-local, window-local,
|
|
|
1038 frame-local, or device-local. See below for info about specifiers.
|
|
|
1039
|
|
|
1040
|
|
|
1041
|
|
|
1042 *** Toolbar
|
|
|
1043 -----------
|
|
|
1044
|
|
|
1045 There is now built-in support for a toolbar. A sample toolbar is
|
|
|
1046 visible by default at the top of the frame. Four separate toolbars
|
|
|
1047 can be configured (at the top, bottom, left, and right of the frame).
|
|
|
1048 The toolbar specification is similar to the menubar specification.
|
|
|
1049 The up, down, and disabled glyphs of a toolbar button can be
|
|
|
1050 separately controlled. Explanatory text can be echoed in the echo
|
|
|
1051 area when the mouse passes over a toolbar button. The size, contents,
|
|
|
1052 and visibility of the various toolbars can be controlled on a
|
|
|
1053 per-buffer, per-window, per-frame, and per-device basis through the
|
|
|
1054 use of specifiers. See the chapter on toolbars in the Lisp Reference
|
|
|
1055 Manual (included with XEmacs) for more information.
|
|
|
1056
|
|
|
1057 The toolbar color and shadow thicknesses are currently controlled only
|
|
|
1058 through `modify-frame-parameters' and through X resources. We are
|
|
|
1059 planning on making these controllable through specifiers as well. (Our
|
|
|
1060 hope is to make `modify-frame-parameters' obsolete, as it is a clunky
|
|
|
1061 and not very powerful mechanism.)
|
|
|
1062
|
|
|
1063 Info, GNUS, VM, W3, and various other packages include custom toolbars
|
|
|
1064 with them.
|
|
|
1065
|
|
|
1066
|
|
|
1067
|
|
|
1068 *** Menubar
|
|
|
1069 -----------
|
|
|
1070
|
|
|
1071 Stay-up menus are implemented in the look-alike Motif menubar.
|
|
|
1072
|
|
|
1073 The default menubar has been expanded to include most commonly-used
|
|
|
1074 functions in XEmacs.
|
|
|
1075
|
|
|
1076 The options menu has been greatly expanded to include many more
|
|
|
1077 options.
|
|
|
1078
|
|
|
1079 The menubar specification format has been greatly expanded. Per-menu
|
|
|
1080 activation hooks can be specified through the :filter keyword (thus
|
|
|
1081 obsoleting `activate-menubar-hook'); this allows for fast response
|
|
|
1082 time when you have a large and complex menu. You can dynamically
|
|
|
1083 control whether menu items are present through the :included and
|
|
|
1084 :config keywords. (The latter keyword implements a simple menubar
|
|
|
1085 configuration scheme, in conjunction with the variable
|
|
|
1086 `menubar-configuration'.) Many different menu-item separators (single
|
|
|
1087 or double line; solid or dashed; flat, etched-in, or etched-out) are
|
|
|
1088 available. See the chapter on menus in the Lisp Reference Manual for
|
|
|
1089 more information about all of this.
|
|
|
1090
|
|
|
1091 New functions `add-submenu' and `add-menu-button' are available.
|
|
|
1092 These supersede the older `add-menu' and `add-menu-item' functions,
|
|
|
1093 and provide a more powerful and consistent interface.
|
|
|
1094
|
|
|
1095 New convenience functions for popping up the part or all of the
|
|
|
1096 menubar in a pop-up menu are available: `popup-menubar-menu' and
|
|
|
1097 `popup-buffer-menu'.
|
|
|
1098
|
|
|
1099 Menus are now incrementally constructed greatly improving menubar
|
|
|
1100 response time.
|
|
|
1101
|
|
|
1102
|
|
|
1103
|
|
|
1104 *** Scrollbars
|
|
|
1105 --------------
|
|
|
1106
|
|
|
1107 A look-alike Motif scrollbar is now included with XEmacs. No longer
|
|
|
1108 will you have to suffer with ugly Athena scrollbars.
|
|
|
1109
|
|
|
1110 Windows can now have horizontal scrollbars. Normally they are visible
|
|
|
1111 when the window's buffer is set to truncate lines rather than wrap
|
|
|
1112 them (e.g. `(setq truncate-lines t)').
|
|
|
1113
|
|
|
1114 All windows, not only the right-most ones, can have vertical
|
|
|
1115 scrollbars.
|
|
|
1116
|
|
|
1117 The functions to change a scrollbar's width have been superseded by
|
|
|
1118 the specifier variables `scrollbar-width' and `scrollbar-height'.
|
|
|
1119 This allows their values to be controlled on a buffer-local,
|
|
|
1120 window-local, frame-local, and device-local basis. See below.
|
|
|
1121
|
|
|
1122 The scrollbars interact better with the event loop (for example, you
|
|
|
1123 can type `C-h k', do a scrollbar action, and see a description of this
|
|
|
1124 scrollbar action printed as if you had pressed a key sequence or
|
|
|
1125 selected a menu item).
|
|
|
1126
|
|
|
1127 The scrollbar behavior can be reprogrammed, by advising the
|
|
|
1128 `scrollbar-*' functions.
|
|
|
1129
|
|
|
1130
|
|
|
1131
|
|
|
1132 *** Key Bindings
|
|
|
1133 ----------------
|
|
|
1134
|
|
|
1135 The oft-used function `goto-line' now has its own binding: M-g.
|
|
|
1136
|
|
|
1137 New bindings are available for scrolling the "other" window: M-next,
|
|
|
1138 M-prior, M-home, M-end. (On many keyboards, `next' and `prior'
|
|
|
1139 labelled `PgUp' and `PgDn'.)
|
|
|
1140
|
|
|
1141 You can reactivate a deactivated Zmacs region, without having any
|
|
|
1142 other effects, with the binding M-C-z.
|
|
|
1143
|
|
|
1144 The bindings `M-u', `M-l', and `M-c' now work on the region (if a
|
|
|
1145 region is active) or work on a word, as before.
|
|
|
1146
|
|
|
1147 Shift-Control-G forces a "critical quit", which drops immediately into
|
|
|
1148 the debugger; see below.
|
|
|
1149
|
|
|
1150
|
|
|
1151
|
|
|
1152 *** Modeline
|
|
|
1153 ------------
|
|
|
1154
|
|
|
1155 The modeline can now have a 3-d look; this is enabled by default. The
|
|
|
1156 specifier variable `modeline-shadow-thickness' controls the size.
|
|
|
1157
|
|
|
1158 The modeline can now be turned off on a per-buffer, per-window,
|
|
|
1159 per-frame, or per-device basis. The specifier variable
|
|
|
1160 `has-modeline-p' controls whether the modeline is visible. See below
|
|
|
1161 for details about the vastly powerful specifier mechanism.
|
|
|
1162
|
|
|
1163 The modeline functions and variables have been renamed to be
|
|
|
1164 `*-modeline-*' rather than `*-mode-line-*'. Aliases are provided for
|
|
|
1165 all the old names.
|
|
|
1166
|
|
|
1167 Variable width fonts now work correctly when used in the modeline.
|
|
|
1168
|
|
|
1169
|
|
|
1170
|
|
|
1171 *** Minibuffer, Echo Area
|
|
|
1172 -------------------------
|
|
|
1173
|
|
|
1174 The minibuffer is no longer constrained to be one line high. The
|
|
|
1175 package rsz-minibuf.el is included to automatically resize the
|
|
|
1176 minibuffer when its contents are too big; enable this with
|
|
|
1177 `resize-minibuffer-mode'.
|
|
|
1178
|
|
|
1179 The echo area is now a true buffer, called " *Echo Area*". This
|
|
|
1180 allows you to customize the echo area behavior through
|
|
|
1181 before-change-functions and after-change-functions.
|
|
|
1182
|
|
|
1183
|
|
|
1184
|
|
|
1185 *** Specifiers
|
|
|
1186 --------------
|
|
|
1187
|
|
|
1188 XEmacs has a new concept called "specifiers", used to configure most
|
|
|
1189 display options (toolbar size and contents, scrollbar size, face
|
|
|
1190 properties, modeline visibility and shadow-thickness, glyphs, display
|
|
|
1191 tables, etc.). We are planning on converting all display
|
|
|
1192 characteristics to use specifiers, and obsoleting the clunky functions
|
|
|
1193 `frame-parameters' and `modify-frame-parameters'. Specifically:
|
|
|
1194
|
|
|
1195 -- You can specify values (called "instantiators") for particular
|
|
|
1196 "locales" (i.e. buffers, windows, frames, devices, or a global value).
|
|
|
1197 When determining what the actual value (or "instance") of a specifier
|
|
|
1198 is, the specifications that are provided are searched from most
|
|
|
1199 specific (i.e. buffer-local) to most general (i.e. global), looking
|
|
|
1200 for a matching one.
|
|
|
1201
|
|
|
1202 -- You can specify multiple instantiators for a particular locale.
|
|
|
1203 For example, when specifying what the foreground color of a face
|
|
|
1204 is in a particular buffer, you could specify two instantiators:
|
|
|
1205 "dark sea green" and "green". The color would then be dark sea
|
|
|
1206 green on devices that recognize that color, and green on other
|
|
|
1207 devices. You have effectively provided a fallback value to make
|
|
|
1208 sure you get reasonable behavior on all devices.
|
|
|
1209
|
|
|
1210 -- You can add one or more tags to an instantiator, where a tag
|
|
|
1211 is a symbol that has been previously registered with XEmacs.
|
|
|
1212 This allows you to identify your instantiators for later
|
|
|
1213 removal in a way that won't interfere with other applications
|
|
|
1214 using the same specifier. Furthermore, particular tags can
|
|
|
1215 be restricted to match only particular sorts of devices.
|
|
|
1216 Any tagged instantiator will be ignored if the device over which
|
|
|
1217 it is being instanced does not match any of its tags. This
|
|
|
1218 allows you, for example, to restrict an instantiator to a
|
|
|
1219 particular device type (X or TTY) and/or class (color, grayscale,
|
|
|
1220 or mono). (You might want to specify, for example, that a
|
|
|
1221 particular face is displayed in green on color devices and is
|
|
|
1222 underlined on mono devices.)
|
|
|
1223
|
|
|
1224 -- A full API is provided for manipulating specifiers, and full
|
|
|
1225 documentation is provided in the Lisp Reference Manual.
|
|
|
1226
|
|
|
1227
|
|
|
1228
|
|
|
1229 *** Basic Lisp Stuff
|
|
|
1230 --------------------
|
|
|
1231
|
|
|
1232 Common-Lisp backquote syntax is recognized. For example, the old
|
|
|
1233 expression
|
|
|
1234
|
|
|
1235 (` (a b (, c)))
|
|
|
1236
|
|
|
1237 can now be written
|
|
|
1238
|
|
|
1239 `(a b ,c)
|
|
|
1240
|
|
|
1241 The old backquote syntax is still accepted.
|
|
|
1242
|
|
|
1243 The new function `type-of' returns a symbol describing the type of a
|
|
|
1244 Lisp object (`integer', `string', `symbol', etc.)
|
|
|
1245
|
|
|
1246 Symbols beginning with a colon (called "keywords") are treated
|
|
|
1247 specially in that they are automatically made self-evaluating when
|
|
|
1248 they are interned into `obarray'. The new function `keywordp' returns
|
|
|
1249 whether a symbol begins with a colon.
|
|
|
1250
|
|
|
1251 `get', `put', and `remprop' have been generalized to allow you to set
|
|
|
1252 and retrieve properties on many different kinds of objects: symbols,
|
|
|
1253 strings, faces, glyphs, and extents (for extents, however, this is not
|
|
|
1254 yet implemented). They are joined by a new function `object-props'
|
|
|
1255 that returns all of the properties that have been set on an object.
|
|
|
1256
|
|
|
1257 New functions `plists-eq' and `plists-equal' are provided for
|
|
|
1258 comparing property lists (a property list is an alternating list
|
|
|
1259 of keys and values).
|
|
|
1260
|
|
|
1261 The Common-Lisp functions `caar', `cadr', `cdar', `cddr', `caaar', etc.
|
|
|
1262 (up to four a's and/or d's), `first', `second', `third', etc. (up to
|
|
|
1263 `tenth'), `last', `rest', and `endp' have been added, for more
|
|
|
1264 convenient manipulation of lists.
|
|
|
1265
|
|
|
1266 New function `mapvector' maps over a sequence and returns a vector
|
|
|
1267 of the results, analogous to `mapcar'.
|
|
|
1268
|
|
|
1269 New functions `rassoc', `remassoc', `remassq', `remrassoc', and
|
|
|
1270 `remrassq' are provided for working with alists.
|
|
|
1271
|
|
|
1272 New functions `defvaralias', `variable-alias' and `indirect-variable'
|
|
|
1273 are provided for creating variable aliases.
|
|
|
1274
|
|
|
1275 Strings have a modified-tick that is bumped every time a string
|
|
|
1276 is modified in-place with `aset' or `fillarray'. This is retrieved
|
|
|
1277 with the new function `string-modified-tick'.
|
|
|
1278
|
|
|
1279 New macro `push' destructively adds an element to the beginning of a
|
|
|
1280 list. New macro `pop' destructively removes and returns the first
|
|
|
1281 element of a list.
|
|
|
1282
|
|
|
1283
|
|
|
1284
|
|
|
1285 *** Buffers
|
|
|
1286 -----------
|
|
|
1287
|
|
|
1288 Most functions that operate on buffer text now take an optional BUFFER
|
|
|
1289 argument, specifying which buffer they operate on. (Previously, they
|
|
|
1290 always operated on the current buffer.)
|
|
|
1291
|
|
|
1292 The new function `transpose-regions' is provided, ported from GNU
|
|
|
1293 Emacs.
|
|
|
1294
|
|
|
1295 The new function `save-current-buffer' works like `save-excursion'
|
|
|
1296 but only saves the current buffer, not the location of point in
|
|
|
1297 that buffer.
|
|
|
1298
|
|
|
1299
|
|
|
1300
|
|
|
1301 *** Devices
|
|
|
1302 -----------
|
|
|
1303
|
|
|
1304 XEmacs has a new concept of "device", which is represents a particular
|
|
|
1305 X display or TTY connection. `make-frame' has a new, optional device
|
|
|
1306 parameter that allows you to specify which device the frame is to be
|
|
|
1307 created on.
|
|
|
1308
|
|
|
1309 Multiple simultaneous TTY and/or X connections may be made. The
|
|
|
1310 specifier mechanism provides reasonable behavior of glyphs, faces,
|
|
|
1311 etc. over heterogeneous device types and over devices whose individual
|
|
|
1312 capabilities may vary.
|
|
|
1313
|
|
|
1314 There is also a device type called "stream" that represents a STDIO
|
|
|
1315 device that has no redisplay or cursor-motion capabilities, such as
|
|
|
1316 the "glass terminal" that XEmacs uses when it is run noninteractively.
|
|
|
1317 There is not all that much you can do with stream devices currently;
|
|
|
1318 please let us know if there are good uses you can think of for this
|
|
|
1319 capability. (For example, log files?)
|
|
|
1320
|
|
|
1321 A new device API is provided. Functions are provided such as
|
|
|
1322 `device-name' (the name of the device, which generally is based on the
|
|
|
1323 X display or TTY file name), `device-type' (X, TTY, or stream),
|
|
|
1324 `device-class' (color, grayscale, or mono), etc. See the Lisp
|
|
|
1325 Reference Manual.
|
|
|
1326
|
|
|
1327 Many functions have been extended to contain an additional, optional
|
|
|
1328 device argument, where such an extension makes sense. In general, if
|
|
|
1329 the argument is omitted, it is equivalent to specifying
|
|
|
1330 `(selected-device)'.
|
|
|
1331
|
|
|
1332 Many previous functions and variables are obsoleted in favor of the
|
|
|
1333 device API. For example, `window-system' is obsoleted by
|
|
|
1334 `device-type', and `x-color-display-p' and friends are obsoleted by
|
|
|
1335 `device-class'.
|
|
|
1336
|
|
70
|
1337 ** NOTE **: The obsolete variable `window-system' is going
|
|
0
|
1338 to be deleted soon, probably in 19.14. Please correct all
|
|
|
1339 your code to use `device-type'.
|
|
|
1340
|
|
70
|
1341 ** INCOMPATIBLE CHANGE **: The function `x-display-visual-class'
|
|
0
|
1342 returns different values from previous versions of XEmacs.
|
|
|
1343
|
|
|
1344
|
|
|
1345
|
|
|
1346 *** Errors, Warnings, C-g
|
|
|
1347 -------------------------
|
|
|
1348
|
|
|
1349 There is a new warnings system implemented. Many warnings that were
|
|
|
1350 formerly displayed in various ad-hoc ways (e.g. warnings about screwy
|
|
|
1351 modifier mappings, messages about failures handling the mouse cursor
|
|
|
1352 and errors in a gc-hook) have been regularized through this system.
|
|
|
1353 The new function `warn' displays a warning before the next redisplay
|
|
|
1354 (the actually display of the warning messages is accomplished through
|
|
|
1355 `display-warning-buffer'). Both `warn' and `display-warning-buffer'
|
|
|
1356 are Lisp functions (the C code calls out to them as necessary), and
|
|
|
1357 thus you can customize the warning system.
|
|
|
1358
|
|
|
1359 Under an X display, you can press Shift-Control-G to force a "critical
|
|
|
1360 quit". This will immediately display a backtrace and pop you into the
|
|
|
1361 debugger, regardless of the settings of `inhibit-quit' and
|
|
|
1362 `debug-on-quit'.
|
|
|
1363
|
|
|
1364 C-g now works properly even on systems that don't implement SIGIO or
|
|
|
1365 for which SIGIO is broken (e.g. IRIX 5.3 and older versions of Linux).
|
|
|
1366 In addition, the SIGIO support has been fixed for many systems on
|
|
|
1367 which it didn't always work properly before (e.g. HPUX and Solaris).
|
|
|
1368
|
|
70
|
1369
|
|
0
|
1370
|
|
|
1371 *** Events
|
|
|
1372 ----------
|
|
|
1373
|
|
70
|
1374 ** INCOMPATIBLE CHANGE **: Many event functions have been changed to
|
|
0
|
1375 accept and return windows instead of frames.
|
|
|
1376
|
|
|
1377 New function: `event-live-p', specifying whether `deallocate-event'
|
|
|
1378 has been called on an event.
|
|
|
1379
|
|
|
1380 The "menu event" type has been renamed to "misc-user event", and
|
|
|
1381 encompasses scrollbar events as well as menu events. We are planning
|
|
|
1382 on making it also encompass toolbar events in a future release.
|
|
|
1383
|
|
|
1384 New functions are provided for determining whether an particular
|
|
|
1385 sections of a frame: `event-over-border-p', `event-over-glyph-p',
|
|
|
1386 `event-over-modeline-p', `event-over-text-area-p', and
|
|
|
1387 `event-over-toolbar-p'. The old, kludgey methods of checking the
|
|
|
1388 window-height, the internal-border-width, etc. are unreliable and
|
|
|
1389 should not be used.
|
|
|
1390
|
|
|
1391 New functions `event-window-x-pixel' and `event-window-y-pixel' are
|
|
|
1392 provided for determining where in a particular window an event
|
|
|
1393 happened.
|
|
|
1394
|
|
|
1395 New functions `event-glyph-x-pixel' and `event-glyph-y-pixel' are
|
|
|
1396 provided for determining where in a particular glyph an event
|
|
|
1397 happened.
|
|
|
1398
|
|
|
1399 New function `event-closest-point', which returns the closest buffer
|
|
|
1400 position to the event even if the event did not occur over any text.
|
|
|
1401
|
|
|
1402 New variable `unread-command-events', superseding the older
|
|
|
1403 `unread-command-event'.
|
|
|
1404
|
|
|
1405 Many event-loop bugs have been fixed.
|
|
|
1406
|
|
|
1407
|
|
|
1408
|
|
|
1409 *** Extents
|
|
|
1410 -----------
|
|
|
1411
|
|
|
1412 The extent code has been largely rewritten. It should be faster and
|
|
|
1413 more reliable.
|
|
|
1414
|
|
|
1415 The text-property implementation has been greatly improved.
|
|
|
1416
|
|
|
1417 Some new extent primitives are provided to return the position of the
|
|
|
1418 next or previous property change in a buffer.
|
|
|
1419
|
|
|
1420 Extents can now have a parent specified; then all of its properties
|
|
|
1421 (except for the buffer it's in and its position in that buffer) come
|
|
|
1422 from that extent. Hierarchies of such extents can be created.
|
|
|
1423
|
|
|
1424 Extents now have a `detachable' property that controls what happens
|
|
|
1425 (they either get detached or shrink down to zero-length) when their
|
|
|
1426 text is deleted. Previously, such extents would always be detached.
|
|
|
1427
|
|
|
1428 The `invisible' property on extents now works.
|
|
|
1429
|
|
|
1430 `map-extents' has three additional parameters that provide more
|
|
|
1431 control over which extents are mapped.
|
|
|
1432
|
|
|
1433 `map-extents' deals better with changes made to extents in the
|
|
|
1434 buffer being mapped over.
|
|
|
1435
|
|
|
1436 A new function `mapcar-extents' (an alternative to `map-extents') has
|
|
|
1437 been provided and should be easier to use than `map-extents'.
|
|
|
1438
|
|
|
1439
|
|
|
1440
|
|
|
1441 *** Faces
|
|
|
1442 ---------
|
|
|
1443
|
|
|
1444 Faces can now be buffer-local, window-local, and device-local as well
|
|
|
1445 as frame-local, and can be further restricted to a particular device
|
|
|
1446 type or class. The way in which faces can be controlled is now based
|
|
|
1447 on the general and powerful specifier mechanism; see above.
|
|
|
1448
|
|
|
1449 The new function `set-face-property' generalizes `set-face-font',
|
|
|
1450 `set-face-foreground', etc. and takes many new optional arguments, in
|
|
|
1451 accordance with the new specifier mechanism.
|
|
|
1452
|
|
|
1453 The new functions `face-property' and `face-property-instance'
|
|
|
1454 generalize `face-font', `face-foreground', etc. and take many new
|
|
|
1455 optional arguments, in accordance with the new specifier mechanism.
|
|
|
1456 (`face-property' returns the value, if any, that was specified for a
|
|
|
1457 particular locale, and `face-property-instance' returns the actual
|
|
|
1458 value that will be used for display. See the section on specifiers.)
|
|
|
1459
|
|
|
1460 The functions `face-font', `face-foreground', `face-background',
|
|
|
1461 `set-face-font', `set-face-foreground', `set-face-background',
|
|
|
1462 etc. are now convenience functions, trivially implemented using
|
|
|
1463 `face-property' and `set-face-property' and take new optioanl
|
|
|
1464 arguments in accordance with those functions. New convenience
|
|
|
1465 functions `face-font-instance', `face-foreground-instance',
|
|
|
1466 `face-background-instance', etc. are provided and are trivially
|
|
|
1467 implemented using `face-property-instance'.
|
|
|
1468
|
|
|
1469 Inheritance of face properties can now be specified. Each individual
|
|
|
1470 face property can inherit differently from other properties, or not
|
|
|
1471 inherit at all.
|
|
|
1472
|
|
|
1473 You can set user-defined properties on faces using
|
|
|
1474 `set-face-property'.
|
|
|
1475
|
|
|
1476 You can create "temporary" faces, which are faces that disappear
|
|
|
1477 when they are no longer in use. This is as opposed to normal
|
|
|
1478 faces, which stay around forever.
|
|
|
1479
|
|
|
1480 The function `make-face' takes a new optional argument specifying
|
|
|
1481 whether a face should be permanent or temporary, and returns the
|
|
|
1482 actual face object rather than the face symbol, as in previous
|
|
|
1483 versions of XEmacs.
|
|
|
1484
|
|
|
1485 The function `face-list' takes a new optional argument specifying
|
|
|
1486 whether permanent, temporary, or both kinds of faces should be
|
|
|
1487 returned.
|
|
|
1488
|
|
|
1489 Faces have new TTY-specific properties: `highlight', `reverse',
|
|
|
1490 `alternate', `blinking', and `dim'.
|
|
|
1491
|
|
|
1492 Redisplay is smarter about dealing with face changes: changes to a
|
|
|
1493 particular face no longer cause all frames to be cleared and
|
|
|
1494 redisplayed.
|
|
|
1495
|
|
|
1496 The Edit-Faces package is provided for interactively changing faces.
|
|
|
1497 A menu item on the options menu is provided for this.
|
|
|
1498
|
|
|
1499 New functions are provided for retrieving the ascent, descent, height,
|
|
|
1500 and width of a character in a particular face.
|
|
|
1501
|
|
|
1502
|
|
|
1503
|
|
|
1504 *** Fonts, Colors
|
|
|
1505 -----------------
|
|
|
1506
|
|
70
|
1507 ** INCOMPATIBLE CHANGE **: The old "font" and "pixel" objects are gone.
|
|
0
|
1508 In place are new objects "font specifier", "font instance", "color
|
|
|
1509 specifier", and "color instance". Functions `font-name', `pixel-name'
|
|
|
1510 (an obsolete alias for `color-name'), etc. are now convenience
|
|
|
1511 functions for working with font and color specifiers. Old code that
|
|
|
1512 is not too sophisticated about working with font and pixel objects may
|
|
|
1513 still work, though. (For example, the idiom `(font-name (face-font
|
|
|
1514 'default))' still works.)
|
|
|
1515
|
|
|
1516 You can now extract the RGB components of a color-instance object
|
|
|
1517 (similar to the old pixel object) with the function
|
|
|
1518 `color-instance-rgb-components'. There is also a convenience function
|
|
|
1519 `color-rgb-components' for working with color specifiers.
|
|
|
1520
|
|
|
1521 If there are no more colors available in the colormap, the nearest
|
|
|
1522 existing color will be used when allocating a new color.
|
|
|
1523
|
|
|
1524
|
|
|
1525
|
|
|
1526 *** Frames
|
|
|
1527 ----------
|
|
|
1528
|
|
|
1529 What used to be called "screens" are now called "frames", for clarity
|
|
|
1530 and consistency with GNU Emacs. Aliases are provided for all the old
|
|
|
1531 screen functions and variables, to avoid introducing a huge E-Lisp
|
|
|
1532 incompatibility.
|
|
|
1533
|
|
|
1534 The frame code has been merged with GNU Emacs 19.28, providing
|
|
|
1535 improved functionality for many functions.
|
|
|
1536
|
|
|
1537
|
|
|
1538
|
|
|
1539 *** Glyphs, Images, and Pixmaps
|
|
|
1540 -------------------------------
|
|
|
1541
|
|
|
1542 Glyphs (used in various places, i.e. as begin-glyphs and end-glyphs
|
|
|
1543 attached to extents and appearing in a buffer or in marginal
|
|
|
1544 annotations; as the truncator and continuor glyphs marking line wrap
|
|
|
1545 or truncation; as an overlay at the beginning of a line; as the
|
|
|
1546 displayable element in a toolbar button; etc.) can now be
|
|
|
1547 buffer-local, window-local, frame-local, and device-local, and can be
|
|
|
1548 further restricted to a particular device type or class. The way in
|
|
|
1549 which faces can be controlled is now based on the general and powerful
|
|
|
1550 specifier mechanism; see above.
|
|
|
1551
|
|
70
|
1552 ** INCOMPATIBLE CHANGE **: The glyph and pixmap API has been completely
|
|
0
|
1553 overhauled. A new Lisp object "glyph" is provided and should be used
|
|
|
1554 where the old "pixmap" object would have been used. The pixmap object
|
|
|
1555 exists no longer. There are also new Lisp objects "image specifier"
|
|
|
1556 and "image instance" (an image-instance is the closest equivalent to
|
|
|
1557 what a pixmap object was). More work on glyphs and images is slated
|
|
|
1558 for 19.13. The glyph and image docs in the Lisp Reference Manual are
|
|
|
1559 incomplete and will be finished in 19.13.
|
|
|
1560
|
|
|
1561 The new function `set-glyph-property' allows setting of all the
|
|
|
1562 glyph properties (`baseline', `contrib-p', etc.). Convenience
|
|
|
1563 functions for particular properties are also provided, just like
|
|
|
1564 for faces.
|
|
|
1565
|
|
|
1566 You can set user-defined properties on glyphs using the new function
|
|
|
1567 `set-glyph-property'.
|
|
|
1568
|
|
|
1569 When displaying pixmaps, existing, closest-matching colors will be
|
|
|
1570 used if the colormap is full.
|
|
|
1571
|
|
|
1572 If the compface library is compiled into XEmacs, there is built-in
|
|
|
1573 support for displaying X-Face bitmaps. (These are typically small
|
|
|
1574 pictures of people's faces, included in a mail message through the
|
|
|
1575 X-Face: header.) VM and highlight-headers will automatically use the
|
|
|
1576 built-in X-Face support if it is available.
|
|
|
1577
|
|
|
1578 Annotations in the right margin (as well as the left margin) are now
|
|
|
1579 implemented. The left and right margin width functions have been
|
|
|
1580 superseded by the specifier variables `left-margin-width' and
|
|
|
1581 `right-margin-width', allowing much more flexible control through the
|
|
|
1582 specifier mechanism.
|
|
|
1583
|
|
70
|
1584 ** INCOMPATIBLE CHANGE **: The variable `use-left-overflow',
|
|
0
|
1585 for controlling annotations in the left margin, is now a specifier
|
|
|
1586 variable instead of a buffer-local variable. (There is also a new
|
|
|
1587 variable `use-right-overflow', that is complementary.)
|
|
|
1588
|
|
|
1589
|
|
|
1590
|
|
|
1591 *** Hashing
|
|
|
1592 -----------
|
|
|
1593
|
|
|
1594 Two new types of weak hashtables can be created: key-weak and
|
|
|
1595 value-weak. In a key-weak hashtable, an entry remains around
|
|
|
1596 if its key is referenced elsewhere, regardless of whether this
|
|
|
1597 is also the case for the value. Value-weak hashtables are
|
|
|
1598 complementary. (This is as opposed to the traditional weak
|
|
|
1599 hashtables, where an entry remains around only if both the
|
|
|
1600 key and value are referenced elsewhere.) New functions
|
|
|
1601 `make-key-weak-hashtable' and `make-value-weak-hashtable'
|
|
|
1602 are provided for creating these hashtables.
|
|
|
1603
|
|
|
1604 The new function `md5' is provided for performing an MD5
|
|
|
1605 hash of an object. MD5 is a secure message digest algorithm
|
|
|
1606 developed by RSA, inc.
|
|
|
1607
|
|
|
1608
|
|
|
1609
|
|
|
1610 *** Keymaps
|
|
|
1611 -----------
|
|
|
1612
|
|
116
|
1613 The GNU Emacs concept of `function-key-map' is now partially
|
|
0
|
1614 implemented. This allows conversion of function-key escape sequences
|
|
|
1615 such as `ESC [ 1 1 ~' into an equivalent human-readable keysym such as
|
|
|
1616 `F1'. This work will be completed in 19.14. The function-key map is
|
|
|
1617 device-local and controllable through the functions
|
|
|
1618 `device-function-key-map' and `set-device-function-key-map'.
|
|
|
1619
|
|
|
1620 `where-is-internal' now correctly searches minor-mode keymaps,
|
|
|
1621 extent-local keymaps, etc. As a side effect of this, menu items will
|
|
|
1622 now correctly show the keyboard equivalent for commands that are
|
|
|
1623 available through a minor-mode keymap, extent-local keymap, etc.
|
|
|
1624
|
|
70
|
1625 ** INCOMPATIBLE CHANGE **: The modifier key "Symbol" has
|
|
0
|
1626 been renamed to "Alt", for compatibility with the rest of the world.
|
|
|
1627 Keep in mind that on many keyboards, the key labelled "Alt" actually
|
|
|
1628 generates the "Meta" modifier. (On Sun keyboards, however, the key
|
|
|
1629 labelled "Alt" does indeed generate the "Alt" modifier, and the key
|
|
|
1630 labelled with a diamond generates the "Meta" modifier.)
|
|
|
1631
|
|
|
1632
|
|
|
1633
|
|
|
1634 *** Mouse, Active Region
|
|
|
1635 ------------------------
|
|
|
1636
|
|
|
1637 The mouse internals in mouse.el have been rewritten. Hooks have been
|
|
|
1638 provided for easier customization of mouse behavior. For example, you
|
|
|
1639 can now easily specify an action to be invoked on single-click
|
|
|
1640 (i.e. down-up without appreciable motion), double-click, drag-up, etc.
|
|
|
1641
|
|
116
|
1642 Some code from GNU Emacs has been ported over, generalizing some of
|
|
0
|
1643 the X-specific mouse stuff.
|
|
|
1644
|
|
70
|
1645 ** INCOMPATIBLE CHANGE **: The function `set-mouse-position' accepts
|
|
0
|
1646 a window instead of a frame.
|
|
|
1647
|
|
|
1648 New function `mouse-position' that obsoletes and is more powerful than
|
|
|
1649 `read-mouse-position'.
|
|
|
1650
|
|
|
1651 New functions `mouse-pixel-positon' and `set-mouse-pixel-position' for
|
|
|
1652 working with pixels instead of characters.
|
|
|
1653
|
|
|
1654 The active (Zmacs) region is now highlighted using the `zmacs-region-face'
|
|
|
1655 instead of the `primary-selection-face'; this generalizes what used
|
|
|
1656 to be X-specific.
|
|
|
1657
|
|
|
1658 New functions `region-active-p', `region-exists-p', and `activate-region'
|
|
|
1659 provide a uniform API for dealing with the region irrespective of
|
|
|
1660 whether the variable `zmacs-regions' is set.
|
|
|
1661
|
|
|
1662 XEmacs is now a better X citizen with respect to the primary selection:
|
|
|
1663 it does not stomp on the primary selection quite so much. This makes
|
|
|
1664 things more manageable if you set `zmacs-regions' to nil.
|
|
|
1665
|
|
|
1666
|
|
|
1667
|
|
|
1668 *** Processes
|
|
|
1669 -------------
|
|
|
1670
|
|
|
1671 Various process race conditions and bugs have been fixed. Problems
|
|
|
1672 with process termination not getting noticed until much later (if at
|
|
|
1673 all) should be gone now, as well as problems with zombie processes
|
|
|
1674 under some systems.
|
|
|
1675
|
|
|
1676 SOCKS support is now included. SOCKS is a package that allows hosts
|
|
|
1677 behind a firewall to gain full access to the Internet without
|
|
|
1678 requiring direct IP reachability.
|
|
|
1679
|
|
|
1680
|
|
|
1681
|
|
|
1682 *** Windows
|
|
|
1683 -----------
|
|
|
1684
|
|
|
1685 Windows 95 is still not out yet.
|
|
|
1686
|
|
70
|
1687 ** INCOMPATIBLE CHANGE **: The functions `locate-window-from-coordinates'
|
|
0
|
1688 and `window-edges' have been eliminated. It no longer makes sense to
|
|
|
1689 work with windows in terms of character positions, because windows can
|
|
|
1690 (and often do) have many differently-sized fonts in them, because the
|
|
|
1691 3-D modeline is not exactly one line high, etc.
|
|
|
1692
|
|
|
1693 The new functions `window-pixel-edges', `window-highest-p',
|
|
|
1694 `window-lowest-p', `frame-highest-window', and `frame-lowest-window'
|
|
|
1695 are provided as substitutes for the above-mentioned, deleted
|
|
|
1696 functions.
|
|
|
1697
|
|
|
1698 The function `window-end' now takes an optional GUARANTEE argument
|
|
|
1699 that will ensure that the value is actually correct as of the next
|
|
|
1700 redisplay.
|
|
|
1701
|
|
|
1702 The window code has been merged with GNU Emacs 19.28, providing
|
|
|
1703 improved functionality for many functions.
|
|
|
1704
|
|
|
1705
|
|
|
1706
|
|
|
1707 *** System-Specific Information
|
|
|
1708 -------------------------------
|
|
|
1709
|
|
|
1710 Georg Nikodym's dynodump package is provided, for proper unexec()ing
|
|
|
1711 on Solaris systems. Executables built on Solaris 2.3 can now run on
|
|
|
1712 Solaris 2.4 without crashing; similarly with executables built on one
|
|
|
1713 type of Sun machine and run on another.
|
|
|
1714
|
|
|
1715 AIX 4.x is supported.
|
|
|
1716
|
|
|
1717 The NeXTstep operating system is supported in TTY mode (this is still
|
|
|
1718 in beta). There are plans to port XEmacs to the NeXTstep window
|
|
|
1719 system, but it may be awhile before this is complete.
|
|
|
1720
|
|
|
1721 Problems with the `round' function causing arithmetic errors on HPUX 9
|
|
|
1722 have been fixed.
|
|
|
1723
|
|
|
1724 You can now build XEmacs as an ELF executable on Linux systems that
|
|
|
1725 support ELF.
|
|
|
1726
|
|
|
1727 Various other new system configurations are supported.
|
|
|
1728
|
|
|
1729
|
|
|
1730
|
|
70
|
1731 *** Packages
|
|
|
1732 ------------
|
|
|
1733
|
|
|
1734 Most packages have been updated to the latest available versions.
|
|
|
1735
|
|
|
1736
|
|
|
1737 Some of the new Emacs Lisp packages ---
|
|
|
1738
|
|
|
1739 Hyperbole: the everyday information manager. Provides a Rolodex,
|
|
|
1740 allows links to be embedded in text, etc.
|
|
|
1741
|
|
|
1742 OOBR: a sophisticated class browser for object-oriented languages.
|
|
|
1743
|
|
|
1744 viper: a better VI emulator that allows Emacs and VI features
|
|
|
1745 to coexist happily.
|
|
|
1746
|
|
|
1747 hm--html-menus: a sophisticated package for editing HTML code,
|
|
|
1748 from Heiko Muenkel.
|
|
|
1749
|
|
|
1750 ksh-mode.el: for editing shell scripts.
|
|
|
1751
|
|
|
1752 lazy-lock.el: a lazy, on-the-fly fontifier.
|
|
|
1753
|
|
|
1754 paren.el: an improved matching paren highlighter
|
|
|
1755
|
|
|
1756
|
|
|
1757
|
|
|
1758 Major changes to existing packages --
|
|
|
1759
|
|
|
1760 VM: has a toolbar, many other nice features.
|
|
|
1761
|
|
|
1762 w3: has a toolbar, many other nice features.
|
|
|
1763
|
|
|
1764 ediff: provides three-way merging, has a better user interface.
|
|
|
1765
|
|
|
1766 info: has a toolbar.
|
|
|
1767
|
|
|
1768 highlight-headers.el: now highlights URL's and makes them active so
|
|
|
1769 that when clicked either Netscape 1.1 is called
|
|
|
1770 or Emacs W3 is run.
|
|
|
1771
|
|
0
|
1772
|
|
|
1773 ** Major Differences Between 19.10 and 19.11
|
|
|
1774 ============================================
|
|
70
|
1775
|
|
0
|
1776 The name has changed from "Lucid Emacs" to "XEmacs". Along with this is a
|
|
|
1777 new canonical ftp site: cs.uiuc.edu:/pub/xemacs.
|
|
|
1778
|
|
|
1779 XEmacs now has its very own World Wide Web page! It contains a
|
|
|
1780 complete list of the FTP distribution sites, the most recent FAQ,
|
|
|
1781 pointers to Emacs Lisp packages not included with the distribution, and
|
|
|
1782 other useful stuff. Check it out at http://xemacs.cs.uiuc.edu/.
|
|
|
1783
|
|
|
1784 A preliminary New Users Guide.
|
|
|
1785
|
|
|
1786 cc-mode.el now provides the default C, C++ and Objective-C modes.
|
|
|
1787
|
|
|
1788 The primary goal of this release is stability. Very few new features have
|
|
|
1789 been introduced but lots of bugs have been fixed. Many of the Emacs Lisp
|
|
|
1790 packages have been updated.
|
|
|
1791
|
|
|
1792 Some of the new Emacs Lisp packages ---
|
|
|
1793
|
|
|
1794 tcl-mode.el: major mode for editing TCL code
|
|
|
1795
|
|
|
1796 fast-lock.el: saves and restores font-lock highlighting, greatly
|
|
|
1797 reducing the time necessary for loading a font-lock'ed
|
|
|
1798 file
|
|
|
1799
|
|
|
1800 ps-print.el: prints buffers to Postscript printers preserving the
|
|
|
1801 buffer's bold and italic text attributes
|
|
|
1802
|
|
|
1803 toolbar.el: provides a "fake" toolbar for use with XEmacs (an
|
|
|
1804 integrated one will be included with 19.12)
|
|
|
1805
|
|
|
1806
|
|
|
1807 ** Major Differences Between 19.9 and 19.10
|
|
|
1808 ===========================================
|
|
|
1809
|
|
|
1810 The GNU `configure' system is now used to build lemacs.
|
|
|
1811
|
|
|
1812 The Emacs Manual and Emacs Lisp Reference Manual now document version 19.10.
|
|
|
1813 If you notice any errors, please let us know.
|
|
|
1814
|
|
|
1815 When pixmaps are displayed in a buffer, they contribute to the line height -
|
|
|
1816 that is, if the glyph is taller than the rest of the text on the line, the
|
|
|
1817 line will be as tall as necessary to display the glyph.
|
|
|
1818
|
|
|
1819 In addition to using arbitrary sound files as emacs beeps, one can control
|
|
|
1820 the pitch and duration of the standard X beep, on X servers which allow that
|
|
|
1821 (Note: most don't.)
|
|
|
1822
|
|
|
1823 There is support for playing sounds on systems with NetAudio servers.
|
|
|
1824
|
|
|
1825 Minor modes may have mode-specific key bindings; keymaps may have an arbitrary
|
|
|
1826 number of parent maps.
|
|
|
1827
|
|
|
1828 Menus can have toggle and radio buttons in them.
|
|
|
1829
|
|
|
1830 There is a font selection menu.
|
|
|
1831
|
|
|
1832 Some default key bindings have changed to match FSF19; the new bindings are
|
|
|
1833
|
|
|
1834 Screen-related commands:
|
|
|
1835 C-x 5 2 make-screen
|
|
|
1836 C-x 5 0 delete-screen
|
|
|
1837 C-x 5 b switch-to-buffer-other-screen
|
|
|
1838 C-x 5 f find-file-other-screen
|
|
|
1839 C-x 5 C-f find-file-other-screen
|
|
|
1840 C-x 5 m mail-other-screen
|
|
|
1841 C-x 5 o other-screen
|
|
|
1842 C-x 5 r find-file-read-only-other-screen
|
|
|
1843 Abbrev-related commands:
|
|
|
1844 C-x a l add-mode-abbrev
|
|
|
1845 C-x a C-a add-mode-abbrev
|
|
|
1846 C-x a g add-global-abbrev
|
|
|
1847 C-x a + add-mode-abbrev
|
|
|
1848 C-x a i g inverse-add-global-abbrev
|
|
|
1849 C-x a i l inverse-add-mode-abbrev
|
|
|
1850 C-x a - inverse-add-global-abbrev
|
|
|
1851 C-x a e expand-abbrev
|
|
|
1852 C-x a ' expand-abbrev
|
|
|
1853 Register-related commands:
|
|
|
1854 C-x r C-SPC point-to-register
|
|
|
1855 C-x r SPC point-to-register
|
|
|
1856 C-x r j jump-to-register
|
|
|
1857 C-x r s copy-to-register
|
|
|
1858 C-x r x copy-to-register
|
|
|
1859 C-x r i insert-register
|
|
|
1860 C-x r g insert-register
|
|
|
1861 C-x r r copy-rectangle-to-register
|
|
|
1862 C-x r c clear-rectangle
|
|
|
1863 C-x r k kill-rectangle
|
|
|
1864 C-x r y yank-rectangle
|
|
|
1865 C-x r o open-rectangle
|
|
|
1866 C-x r t string-rectangle
|
|
|
1867 C-x r w window-configuration-to-register
|
|
|
1868 Narrowing-related commands:
|
|
|
1869 C-x n n narrow-to-region
|
|
|
1870 C-x n w widen
|
|
|
1871 Other changes:
|
|
|
1872 C-x 3 split-window-horizontally (was undefined)
|
|
|
1873 C-x - shrink-window-if-larger-than-buffer
|
|
|
1874 C-x + balance-windows
|
|
|
1875
|
|
70
|
1876 The variable allow-deletion-of-last-visible-screen has been removed, since
|
|
0
|
1877 it was widely hated. You can now always delete the last visible screen if
|
|
|
1878 there are other iconified screens in existence.
|
|
|
1879
|
|
|
1880 ToolTalk support is provided.
|
|
|
1881
|
|
|
1882 An Emacs screen can be placed within an "external client widget" managed
|
|
|
1883 by another application. This allows an application to use an Emacs screen
|
|
|
1884 as its text pane rather than the standard Text widget that is provided
|
|
|
1885 with Motif or Athena.
|
|
|
1886
|
|
|
1887 Additional compatibility with Epoch is provided (though this is not yet
|
|
|
1888 complete.)
|
|
|
1889
|
|
|
1890
|
|
|
1891 ** Major Differences Between 19.8 and 19.9
|
|
|
1892 ==========================================
|
|
|
1893
|
|
|
1894 Scrollbars! If you have Motif, these are real Motif scrollbars; otherwise,
|
|
|
1895 Athena scrollbars are used. They obey all the usual resources of their
|
|
|
1896 respective toolkits.
|
|
|
1897
|
|
2
|
1898 There is now an implementation of dialog boxes based on the Athena
|
|
0
|
1899 widgets, as well as the existing Motif implementation.
|
|
|
1900
|
|
70
|
1901 This release works with Motif 1.2 as well as 1.1. If you link with Motif,
|
|
0
|
1902 you do not also need to link with Athena.
|
|
|
1903
|
|
|
1904 If you compile lwlib with both USE_MOTIF and USE_LUCID defined (which is the
|
|
|
1905 recommended configuration) then the Lucid menus will draw text using the Motif
|
|
|
1906 string-drawing library, instead of the Xlib one. The reason for this is that
|
|
|
1907 one can take advantage of the XmString facilities for including non-Latin1
|
|
|
1908 characters in resource specifications. However, this is a user-visible change
|
|
70
|
1909 in that, in this configuration, the menubar will use the "*fontList" resource
|
|
0
|
1910 in preference to the "*font" resource, if it is set.
|
|
|
1911
|
|
|
1912 It's possible to make extents which are copied/pasted by kill and undo.
|
|
|
1913 There is an implementation of FSF19-style text properties based on this.
|
|
|
1914
|
|
|
1915 There is a new variable, minibuffer-max-depth, which is intended to circumvent
|
|
|
1916 a common source of confusion among new Emacs users. Since, under a window
|
|
|
1917 system, it's easy to jump out of the minibuffer (by doing M-x, then getting
|
|
|
1918 distracted, and clicking elsewhere) many, many novice users have had the
|
|
|
1919 problem of having multiple minibuffers build up, even to the point of
|
|
|
1920 exhausting the lisp stack. So the default behavior is to disallow the
|
|
|
1921 minibuffer to ever be reinvoked while active; if you attempt to do so, you
|
|
|
1922 will be prompted about it.
|
|
|
1923
|
|
|
1924 There is a new variable, teach-extended-commands-p, which if set, will cause
|
|
|
1925 `M-x' to remind you of any key bindings of the command you just invoked the
|
|
|
1926 "long way."
|
|
|
1927
|
|
|
1928 There are menus in Dired, Tar, Comint, Compile, and Grep modes.
|
|
|
1929
|
|
|
1930 There is a menu of window management commands on the right mouse button over
|
|
|
1931 the modelines.
|
|
|
1932
|
|
70
|
1933 Popup menus now have titles at the top; this is controlled by the new
|
|
0
|
1934 variable `popup-menu-titles'.
|
|
|
1935
|
|
|
1936 The `Find' key on Sun keyboards will search for the next (or previous)
|
|
|
1937 occurrence of the selected text, as in OpenWindows programs.
|
|
|
1938
|
|
|
1939 The `timer' package has been renamed to `itimer' to avoid a conflict with
|
|
|
1940 a different package called `timer'.
|
|
|
1941
|
|
|
1942 VM 5.40 is included.
|
|
|
1943
|
|
|
1944 W3, the emacs interface to the World Wide Web, is included.
|
|
|
1945
|
|
|
1946 Felix Lee's GNUS speedups have been installed, including his new version of
|
|
|
1947 nntp.el which makes GNUS efficiently utilize the NNTP XOVER command if
|
|
70
|
1948 available (which is much faster.)
|
|
0
|
1949
|
|
|
1950 GNUS should also be much friendlier to new users: it starts up much faster,
|
|
|
1951 and doesn't (necessarily) subscribe you to every single newsgroup.
|
|
|
1952
|
|
|
1953 The byte-compiler issues a new class of warnings: variables which are
|
|
|
1954 bound but not used. This is merely an advisory, and does not mean the
|
|
|
1955 code is incorrect; you can disable these warnings in the usual way with
|
|
|
1956 the `byte-compiler-options' macro.
|
|
|
1957
|
|
|
1958 the `start-open' and `end-open' extent properties, for specifying whether
|
|
|
1959 characters inserted exactly at a boundary of an extent should go into the
|
|
|
1960 extent or out of it, now work correctly.
|
|
|
1961
|
|
|
1962 The `extent-data' slot has been generalized/replaced with a property list,
|
|
|
1963 so it's easier to attach arbitrary data to extent objects.
|
|
|
1964
|
|
|
1965 The `event-modifiers' and `event-modifier-bits' functions work on motion
|
|
|
1966 events as well as other mouse and keyboard events.
|
|
|
1967
|
|
|
1968 Forms-mode uses fonts and read-only regions.
|
|
|
1969
|
|
|
1970 The behavior of the -geometry command line option should be correct now.
|
|
|
1971
|
|
|
1972 The `iconic' screen parameter works when passed to x-create-screen.
|
|
|
1973
|
|
|
1974 The user's manual now documents Lucid Emacs 19.9.
|
|
|
1975
|
|
|
1976 The relocating buffer allocator is turned on by default; this means that when
|
|
70
|
1977 buffers are killed, their storage will be returned to the operating system,
|
|
0
|
1978 and the size of the emacs process will shrink.
|
|
|
1979
|
|
|
1980 CAVEAT: code which contains calls to certain `face' accessor functions will
|
|
|
1981 need to be recompiled by version 19.9 before it will work. The functions
|
|
|
1982 whose callers must be recompiled are: face-font, face-foreground,
|
|
|
1983 face-background, face-background-pixmap, and face-underline-p. The symptom
|
|
|
1984 of this problem is the error "Wrong type argument, arrayp, #<face ... >".
|
|
|
1985 The .elc files generated by version 19.9 will work in 19.6 and 19.8, but
|
|
|
1986 older .elc files which contain calls to these functions will not work in 19.9.
|
|
|
1987
|
|
|
1988 Work In Progress:
|
|
|
1989
|
|
|
1990 - We have been in the process of internationalizing Lucid Emacs. This code is
|
|
|
1991 ***not*** ready for general use yet. However, the code is included (and
|
|
|
1992 turned off by default) in this release.
|
|
|
1993
|
|
|
1994 - If you define I18N2 at compile-time, then sorting/collation will be done
|
|
|
1995 according to the locale returned by setlocale().
|
|
|
1996
|
|
|
1997 - If you define I18N3 at compile-time, then all messages printed by lemacs
|
|
|
1998 will be filtered through the gettext() library routine, to enable the use
|
|
|
1999 of locale-specific translation catalogues. The current implementation of
|
|
70
|
2000 this is quite dependent on Solaris 2, and has a very large impact on
|
|
0
|
2001 existing code, therefore we are going to be making major changes soon.
|
|
|
2002 (You'll notice calls to `gettext' and `GETTEXT' scattered around much of
|
|
|
2003 the lisp and C code; ignore it, this will be going away.)
|
|
|
2004
|
|
|
2005 - If you define I18N4 at compile-time, then lemacs will internally use a
|
|
|
2006 wide representation of characters, enabling the use of large character
|
|
70
|
2007 sets such as Kanji. This code is very OS dependent: it requires X11R5,
|
|
0
|
2008 and several OS-supplied library routines for reading and writing wide
|
|
|
2009 characters (getwc(), putwc(), and a few others.) Performance is also a
|
|
|
2010 problem. This code is also scheduled for a major overhaul, with the
|
|
70
|
2011 intent of improving performance and portability.
|
|
0
|
2012
|
|
|
2013 Our eventual goal is to merge with MULE, or at least provide the same base
|
|
70
|
2014 level of functionality. If you would like to help out with this, let us
|
|
0
|
2015 know.
|
|
|
2016
|
|
70
|
2017 - Other work-in-progress includes Motif drag-and-drop support, ToolTalk
|
|
|
2018 support, and support for embedding an Emacs widget inside another
|
|
0
|
2019 application (where it can function as that other application's text-entry
|
|
|
2020 area). This code has not been extensively tested, and may (or may not)
|
|
70
|
2021 have portability problems, but it's there for the adventurous. Comments,
|
|
0
|
2022 suggestions, bug reports, and especially fixes are welcome. But have no
|
|
|
2023 expectations that this experimental code will work at all.
|
|
|
2024
|
|
|
2025
|
|
|
2026 ** Major Differences Between 19.6 and 19.8
|
|
|
2027 ==========================================
|
|
|
2028
|
|
|
2029 There were almost no differences between versions 19.6 and 19.7; version 19.7
|
|
|
2030 was a bug-fix release that was distributed with Energize 2.1.
|
|
|
2031
|
|
|
2032 Lucid Emacs 19.8 represents the first stage of the Lucid Emacs/Epoch merger.
|
|
|
2033 The redisplay engine now in lemacs is an improved descendant of the Epoch
|
|
|
2034 redisplay. As a result, many bugs have been eliminated, and several disabled
|
|
|
2035 features have been re-enabled. Notably:
|
|
|
2036
|
|
|
2037 Selective display (and outline-mode) work.
|
|
|
2038
|
|
|
2039 Horizontally split windows work.
|
|
|
2040
|
|
|
2041 The height of a line is the height of the tallest font displayed on that line;
|
|
|
2042 it is possible for a screen to display lines of differing heights. (Previously,
|
|
|
2043 the height of all lines was the height of the tallest font loaded.)
|
|
|
2044
|
|
|
2045 There is lisp code to scale fonts up and down, for example, to load the next-
|
|
|
2046 taller version of a font.
|
|
|
2047
|
|
|
2048 There is a new internal representation for lisp objects, giving emacs-lisp 28
|
|
|
2049 bit integers and a 28 bit address space, up from the previous maximum of 26.
|
|
|
2050 We expect eventually to increase this to 30 bit integers and a 32 bit address
|
|
|
2051 space, eliminating the need for DATA_SEG_BITS on some architectures. (On 64
|
|
|
2052 bit machines, add 32 to all of these numbers.)
|
|
|
2053
|
|
|
2054 GC performance is improved.
|
|
|
2055
|
|
|
2056 Various X objects (fonts, colors, cursors, pixmaps) are accessible as first-
|
|
|
2057 class lisp objects, with finalization.
|
|
|
2058
|
|
|
2059 An alternate interface to embedding images in the text is provided, called
|
|
|
2060 "annotations." You may create an "annotation margin" which is whitespace at
|
|
|
2061 the left side of the screen that contains only annotations, not buffer text.
|
|
|
2062
|
|
|
2063 When using XPM files, one can specify the values of logical color names to be
|
|
|
2064 used when loading the files.
|
|
|
2065
|
|
|
2066 It is possible to resize windows by dragging their modelines up and down. More
|
|
|
2067 generally, it is possible to add bindings for mouse gestures on the modelines.
|
|
|
2068
|
|
|
2069 There is support for playing sound files on HP machines.
|
|
|
2070
|
|
|
2071 ILISP version 5.5 is included.
|
|
|
2072
|
|
|
2073 The Common Lisp #' read syntax is supported (#' is to "function" as ' is to
|
|
|
2074 "quote".)
|
|
|
2075
|
|
|
2076 The `active-p' slot of menu items is now evaluated, so one can put arbitrary
|
|
|
2077 lisp code in a menu to decide whether that item should be selectable, rather
|
|
|
2078 than doing this with an `activate-menubar-hook'.
|
|
|
2079
|
|
|
2080 The X resource hierarchy has changed slightly, to be more consistent. It used
|
|
|
2081 to be
|
|
|
2082 argv[0] SCREEN-NAME pane screen
|
|
|
2083 ApplicationShell EmacsShell Paned EmacsFrame
|
|
|
2084
|
|
|
2085 now it is
|
|
|
2086
|
|
|
2087 argv[0] shell pane SCREEN-NAME
|
|
|
2088 ApplicationShell EmacsShell Paned EmacsFrame
|
|
|
2089
|
|
|
2090 The Lucid Emacs sources have been largely merged with FSF version 19; this
|
|
|
2091 means that the lisp library contains the most recent releases of various
|
|
|
2092 packages, and many new features of FSF 19 have been incorporated.
|
|
|
2093
|
|
|
2094 Because of this, the lemacs sources should also be substantially more portable.
|
|
|
2095
|
|
|
2096
|
|
|
2097 ** Major Differences Between 19.4 and 19.6
|
|
|
2098 ==========================================
|
|
|
2099
|
|
|
2100 There were almost no differences between versions 19.4 and 19.5; we fixed
|
|
|
2101 a few minor bugs and repacked 19.4 as 19.5 for a CD-ROM that we gave away
|
|
|
2102 as a trade show promotion.
|
|
|
2103
|
|
|
2104 The primary goal of the 19.6 release is stability, rather than improved
|
|
|
2105 functionality, so there aren't many user-visible changes. The most notable
|
|
|
2106 changes are:
|
|
|
2107
|
|
|
2108 - The -geometry command-line option now correctly overrides geometry
|
|
|
2109 specifications in the resource database.
|
|
|
2110 - The `width' and `height' screen-parameters work.
|
|
|
2111 - Font-lock-mode considers the comment start and end characters to be
|
|
|
2112 a part of the comment.
|
|
|
2113 - The lhilit package has been removed. Use font-lock-mode instead.
|
|
|
2114 - vm-isearch has been fixed to work with isearch-mode.
|
|
|
2115 - new versions of ispell and calendar.
|
|
|
2116 - sccs.el has menus.
|
|
|
2117
|
|
|
2118 Lots of bugs were fixed, including the problem that lemacs occasionally
|
|
|
2119 grabbed the keyboard focus.
|
|
|
2120
|
|
|
2121 Also, as of Lucid Emacs 19.6 and Energize 2.0 (shipping now) it is possible
|
|
|
2122 to compile the public release of Lucid Emacs with support for Energize; so
|
|
|
2123 now Energize users will be able to build their own Energize-aware versions
|
|
|
2124 of lemacs, and will be able to use newer versions of lemacs as they are
|
|
|
2125 released to the net. (Of course, this is not behavior covered by your
|
|
|
2126 Energize support contract; you do it at your own risk.)
|
|
|
2127
|
|
|
2128 I have not incorporated all portability patches that I have been sent since
|
|
|
2129 19.4; I will try to get to them soon. However, if you need to make any
|
|
|
2130 changes to lemacs to get it to compile on your system, it would be quite
|
|
|
2131 helpful if you would send me context diffs (diff -c) against version 19.6.
|
|
|
2132
|
|
|
2133
|
|
|
2134 ** Major Differences Between 19.3 and 19.4
|
|
|
2135 ==========================================
|
|
|
2136
|
|
|
2137 Prototypes have been added for all functions. Emacs compiles in the strict
|
|
|
2138 ANSI modes of lcc and gcc, so portability should be vastly improved.
|
|
|
2139
|
|
70
|
2140 Many many many many core leaks have been plugged, especially in screen
|
|
0
|
2141 creation and deletion.
|
|
|
2142
|
|
|
2143 The float support reworked to be more portable and ANSI conformant. This
|
|
70
|
2144 resulted in these new configuration parameters: HAVE_INVERSE_HYPERBOLIC,
|
|
|
2145 HAVE_CBRT, HAVE_RINT, FLOAT_CHECK_ERRNO, FLOAT_CATCH_SIGILL,
|
|
0
|
2146 FLOAT_CHECK_DOMAIN. Let us know if you had to change the defaults on your
|
|
|
2147 architecture.
|
|
|
2148
|
|
70
|
2149 The SunOS unexec has been rewritten, and now works with either static or
|
|
0
|
2150 dynamic libraries, depending on whether -Bstatic or -Bdynamic were specified
|
|
|
2151 at link-time.
|
|
|
2152
|
|
|
2153 Small (character-sized) bitmaps can be mixed in with buffer text via the new
|
|
|
2154 functions set-extent-begin-glyph and set-extent-end-glyph. (This is actually
|
|
|
2155 a piece of functionality that Energize has been using for a while, but we've
|
|
|
2156 just gotten around to making it possible to use it without Energize. See how
|
|
|
2157 nice we are? Go buy our product.)
|
|
|
2158
|
|
|
2159 If compiled with Motif support, one can pop up dialog boxes from emacs lisp.
|
|
|
2160 We encourage someone to contribute Athena an version of this code; it
|
|
70
|
2161 shouldn't be much work.
|
|
0
|
2162
|
|
|
2163 If dialog boxes are available, then y-or-n-p and yes-or-no-p use dialog boxes
|
|
70
|
2164 instead of the minibuffer if invoked as a result of a command that was
|
|
0
|
2165 executed from a menu instead of from the keyboard.
|
|
|
2166
|
|
|
2167 Multiple screen support works better; check out doc of get-screen-for-buffer.
|
|
|
2168
|
|
|
2169 The default binding of backspace is the same as delete. (C-h is still help.)
|
|
|
2170
|
|
70
|
2171 A middle click while the minibuffer is active does completion if you click on
|
|
0
|
2172 a highlighted completion, otherwise it executes the global binding of button2.
|
|
|
2173
|
|
|
2174 New versions of Barry Warsaw's c++-mode and syntax.c. Font-lock-mode works
|
|
|
2175 with C++ mode now.
|
|
|
2176
|
|
|
2177 The semantics of activate-menubar-hook has changed; the functions are called
|
|
|
2178 with no arguments now.
|
|
|
2179
|
|
|
2180 `truename' no longer hacks the automounter; use directory-abbrev-alist instead.
|
|
|
2181
|
|
|
2182 Most minibuffer handling has been reimplemented in emacs-lisp.
|
|
|
2183
|
|
|
2184 There is now a builtin minibuffer history mechanism which replaces gmhist.
|
|
|
2185
|
|
|
2186
|
|
|
2187 ** Major Differences Between 19.2 and 19.3
|
|
|
2188 ==========================================
|
|
|
2189
|
|
|
2190 The ISO characters have correct case and syntax tables now, so the word-motion
|
|
|
2191 and case-converting commands work sensibly on them.
|
|
|
2192
|
|
|
2193 If you set ctl-arrow to an integer, you can control exactly which characters
|
|
|
2194 are printable. (There will be a less crufty way to do this eventually.)
|
|
|
2195
|
|
|
2196 Menubars can now be buffer local; the function set-screen-menubar no longer
|
|
70
|
2197 exists. Look at GNUS and VM for examples of how to do this, or read
|
|
0
|
2198 menubar.el.
|
|
|
2199
|
|
|
2200 When emacs is reading from the minibuffer with completions, any completions
|
|
|
2201 which are visible on the screen will highlight when the mouse moves over them;
|
|
|
2202 clicking middle on a completion is the same as typing it at the minibuffer.
|
|
|
2203 Some implications of this: The *Completions* buffer is always mousable. If
|
|
|
2204 you're using the completion feature of find-tag, your source code will be
|
|
70
|
2205 mousable when you type M-. Dired buffers will be mousable as soon as you
|
|
0
|
2206 type ^X^F. And so on.
|
|
|
2207
|
|
|
2208 The old isearch code has been replaced with a descendant of Dan LaLiberte's
|
|
|
2209 excellent isearch-mode; it is more customizable, and generally less bogus.
|
|
|
2210 You can search for "composed" characters. There are new commands, too; see
|
|
|
2211 the doc for ^S, or the NEWS file.
|
|
|
2212
|
|
|
2213 A patched GNUS 3.14 is included.
|
|
|
2214
|
|
|
2215 The user's manual now documents Lucid Emacs 19.3.
|
|
|
2216
|
|
|
2217 A few more modes have mouse and menu support.
|
|
|
2218
|
|
|
2219 The startup code should be a little more robust, and give you more reasonable
|
|
|
2220 error messages when things aren't installed quite right (instead of the
|
|
|
2221 ubiquitous "cannot open DISPLAY"...)
|
|
|
2222
|
|
|
2223 Subdirectories of the lisp directory whose names begin with a hyphen or dot
|
|
|
2224 are not automatically added to the load-path, so you can use this to avoid
|
|
|
2225 accidentally inflicting experimental software on your users.
|
|
|
2226
|
|
|
2227 I've tried to incorporate all of the portability patches that were sent to
|
|
70
|
2228 me; I tried to solve some of the problems in different ways than the
|
|
0
|
2229 patches did, so let me know if I missed something.
|
|
|
2230
|
|
|
2231 Some systems will need to define NEED_STRDUP, NEED_REALPATH, HAVE_DREM, or
|
|
|
2232 HAVE_REMAINDER in config.h. Really this should be done in the appropriate
|
|
|
2233 s- or m- files, but I don't know which systems need these and which don't.
|
|
|
2234 If yours does, let me know which file it should be in.
|
|
|
2235
|
|
|
2236 Check out these new packages:
|
|
|
2237
|
|
|
2238 blink-paren.el: causes the matching parenthesis to flash on and off whenever
|
|
|
2239 the cursor is sitting on a paren-syntax character.
|
|
|
2240
|
|
|
2241 pending-del.el: Certain commands implicitly delete the highlighted region:
|
|
|
2242 Typing a character when there is a highlighted region replaces
|
|
|
2243 that region with the typed character.
|
|
|
2244
|
|
|
2245 font-lock.el: A code-highlighting package, driven off of syntax tables, so
|
|
70
|
2246 that it understands block comments, strings, etc. The
|
|
0
|
2247 insertion hook is used to fontify text as you type it in.
|
|
|
2248
|
|
|
2249 shell-font.el: Displays your shell-buffer prompt in boldface.
|
|
124
|
2250
|
|
|
2251 * The History of XEmacs
|
|
|
2252 =======================
|
|
|
2253
|
|
|
2254 This product is an extension of GNU Emacs, previously known to some as
|
|
|
2255 "Lucid Emacs" or "ERA". It was initially based on an early version of Emacs
|
|
|
2256 Version 19 from the Free Software Foundation and has since been kept
|
|
|
2257 up-to-date with recent versions of that product. It stems from a
|
|
|
2258 collaboration of Lucid, Inc. with SunSoft DevPro (a division of Sun
|
|
|
2259 Microsystems, Inc.; formerly called SunPro) and the University of Illinois.
|
|
|
2260
|
|
|
2261 NOTE: Lucid, Inc. is currently out of business but development on XEmacs
|
|
|
2262 continues strong. Recently, Amdahl Corporation and INS Engineering have
|
|
|
2263 both contributed significantly to the development of XEmacs.
|
|
|
2264
|
|
|
2265
|
|
|
2266 * What's Different?
|
|
|
2267 ===================
|
|
|
2268
|
|
|
2269
|
|
|
2270 ** Differences between XEmacs and GNU Emacs 19
|
|
|
2271 ==================================================
|
|
|
2272 In XEmacs 20, characters are first-class objects. Characters can be
|
|
|
2273 converted to integers, but are not integers. FSF 19, XEmacs 19, and Mule
|
|
|
2274 represent them as integers.
|
|
|
2275
|
|
|
2276 In XEmacs, events are first-class objects. FSF 19 represents them as
|
|
|
2277 integers, which obscures the differences between a key gesture and the
|
|
|
2278 ancient ASCII code used to represent a particular overlapping subset of them.
|
|
|
2279
|
|
|
2280 In XEmacs, keymaps are first-class opaque objects. FSF 19 represents them as
|
|
|
2281 complicated combinations of association lists and vectors. If you use the
|
|
|
2282 advertised functional interface to manipulation of keymaps, the same code
|
|
|
2283 will work in XEmacs, Emacs 18, and GNU Emacs 19; if your code depends
|
|
|
2284 on the underlying implementation of keymaps, it will not.
|
|
|
2285
|
|
|
2286 XEmacs uses "extents" to represent all non-textual aspects of buffers;
|
|
|
2287 FSF 19 uses two distinct objects, "text properties" and "overlays",
|
|
|
2288 which divide up the functionality between them. Extents are a
|
|
|
2289 superset of the functionality of the two FSF data types. The full FSF
|
|
|
2290 19 interface to text properties is supported in XEmacs (with extents
|
|
|
2291 being the underlying representation).
|
|
|
2292
|
|
|
2293 Extents can be made to be copied into strings, and thus restored by kill
|
|
|
2294 and yank. Thus, one can specify this behavior on either "extents" or
|
|
|
2295 "text properties", whereas in FSF 19 text properties always have this
|
|
|
2296 behavior and overlays never do.
|
|
|
2297
|
|
|
2298 Many more packages are provided standard with XEmacs than with FSF 19.
|
|
|
2299
|
|
|
2300 Pixmaps of arbitrary size can be embedded in a buffer.
|
|
|
2301
|
|
|
2302 Variable width fonts work.
|
|
|
2303
|
|
|
2304 The height of a line is the height of the tallest font on that line, instead
|
|
|
2305 of all lines having the same height.
|
|
|
2306
|
|
|
2307 XEmacs uses the MIT "Xt" toolkit instead of raw Xlib calls, which
|
|
|
2308 makes it be a more well-behaved X citizen (and also improves
|
|
|
2309 portability). A result of this is that it is possible to include
|
|
|
2310 other Xt "Widgets" in the XEmacs window. Also, XEmacs understands the
|
|
|
2311 standard Xt command-line arguments.
|
|
|
2312
|
|
|
2313 XEmacs provides support for ToolTalk on systems that have it.
|
|
|
2314
|
|
|
2315 XEmacs can ask questions using popup dialog boxes. Any command executed from
|
|
|
2316 a menu will ask yes/no questions with dialog boxes, while commands executed
|
|
|
2317 via the keyboard will use the minibuffer.
|
|
|
2318
|
|
|
2319 XEmacs has a built-in toolbar. Four toolbars can actually be configured:
|
|
|
2320 top, bottom, left, and right toolbars.
|
|
|
2321
|
|
|
2322 XEmacs has vertical and horizontal scrollbars. Unlike in FSF 19 (which
|
|
|
2323 provides a primitive form of vertical scrollbar), these are true toolkit
|
|
|
2324 scrollbars. A look-alike Motif scrollbar is provided for those who
|
|
|
2325 don't have Motif. (Even for those who do, the look-alike may be preferable
|
|
|
2326 as it is faster.)
|
|
|
2327
|
|
|
2328 If you're running on a machine with audio hardware, you can specify sound
|
|
|
2329 files for XEmacs to play instead of the default X beep. See the documentation
|
|
|
2330 of the function load-sound-file and the variable sound-alist.
|
|
|
2331
|
|
|
2332 An XEmacs frame can be placed within an "external client widget" managed by
|
|
|
2333 another application. This allows an application to use an XEmacs frame as its
|
|
|
2334 text pane rather than the standard Text widget that is provided with Motif or
|
|
|
2335 Athena. XEmacs supports Motif applications, generic Xt (e.g. Athena)
|
|
|
2336 applications, and raw Xlib applications.
|
|
|
2337
|
|
|
2338 Here are some more specifics about the XEmacs implementation:
|
|
|
2339
|
|
|
2340 *** The Input Model
|
|
|
2341 -------------------
|
|
|
2342
|
|
|
2343 The fundamental unit of input is an "event" instead of a character. An
|
|
|
2344 event is a new data type that contains several pieces of information.
|
|
|
2345 There are several kinds of event, and corresponding accessor and utility
|
|
|
2346 functions. We tried to abstract them so that they would apply equally
|
|
|
2347 well to a number of window systems.
|
|
|
2348
|
|
|
2349 NOTE: All timestamps are measured as milliseconds since Emacs started.
|
|
|
2350
|
|
|
2351 key_press_event
|
|
|
2352 event_channel A token representing which keyboard generated it.
|
|
|
2353 For this kind of event, this is a console object.
|
|
|
2354 timestamp When it happened
|
|
|
2355 key What keysym this is; a character or a symbol.
|
|
|
2356 If it is a character, it will be a printing
|
|
|
2357 ASCII character.
|
|
|
2358 modifiers Bucky-bits on that key: control, meta, etc.
|
|
|
2359 For most keys, Shift is not a bit; that is implicit
|
|
|
2360 in the keyboard layout.
|
|
|
2361
|
|
|
2362 button_press_event
|
|
|
2363 button_release_event
|
|
|
2364 event_channel A token representing which mouse generated it.
|
|
|
2365 For this kind of event, this is a frame object.
|
|
|
2366 timestamp When it happened
|
|
|
2367 button What button went down or up.
|
|
|
2368 modifiers Bucky-bits on that button: shift, control, meta, etc.
|
|
|
2369 x, y Where it was at the button-state-change (in pixels).
|
|
|
2370
|
|
|
2371 pointer_motion_event
|
|
|
2372 event_channel A token representing which mouse generated it.
|
|
|
2373 For this kind of event, this is a frame object.
|
|
|
2374 timestamp When it happened
|
|
|
2375 x, y Where it was after it moved (in pixels).
|
|
|
2376 modifiers Bucky-bits down when the motion was detected.
|
|
|
2377 (Possibly not all window systems will provide this?)
|
|
|
2378
|
|
|
2379 process_event
|
|
|
2380 timestamp When it happened
|
|
|
2381 process the emacs "process" object in question
|
|
|
2382
|
|
|
2383 timeout_event
|
|
|
2384 timestamp Now (really, when the timeout was signaled)
|
|
|
2385 interval_id The ID returned when the associated call to
|
|
|
2386 add_timeout_cb() was made
|
|
|
2387 ------ the rest of the fields are filled in by Emacs -----
|
|
|
2388 id_number The Emacs timeout ID for this timeout (more
|
|
|
2389 than one timeout event can have the same value
|
|
|
2390 here, since Emacs timeouts, as opposed to
|
|
|
2391 add_timeout_cb() timeouts, can resignal
|
|
|
2392 themselves)
|
|
|
2393 function An elisp function to call when this timeout is
|
|
|
2394 processed.
|
|
|
2395 object The object passed to that function.
|
|
|
2396
|
|
|
2397 eval_event
|
|
|
2398 timestamp When it happened
|
|
|
2399 function An elisp function to call with this event object.
|
|
|
2400 object Anything.
|
|
|
2401 This kind of event is used internally; sometimes the
|
|
|
2402 window system interface would like to inform emacs of
|
|
|
2403 some user action (such as focusing on another frame)
|
|
|
2404 but needs that to happen synchronously with the other
|
|
|
2405 user input, like keypresses. This is useful when
|
|
|
2406 events are reported through callbacks rather
|
|
|
2407 than in the standard event stream.
|
|
|
2408
|
|
|
2409 misc_user_event
|
|
|
2410 timestamp When it happened
|
|
|
2411 function An elisp function to call with this event object.
|
|
|
2412 object Anything.
|
|
|
2413 This is similar to an eval_event, except that it is
|
|
|
2414 generated by user actions: selections in the
|
|
|
2415 menubar or scrollbar actions. It is a "command"
|
|
|
2416 event, like key and mouse presses (and unlike mouse
|
|
|
2417 motion, process output, and enter and leave window
|
|
|
2418 hooks). In many ways, eval_events are not the same
|
|
|
2419 as keypresses or misc_user_events.
|
|
|
2420
|
|
|
2421 magic_event
|
|
|
2422 No user-serviceable parts within. This is for things
|
|
|
2423 like KeymapNotify and ExposeRegion events and so on
|
|
|
2424 that emacs itself doesn't care about, but which it
|
|
|
2425 must do something with for proper interaction with
|
|
|
2426 the window system.
|
|
|
2427
|
|
|
2428 Magic_events are handled somewhat asynchronously, just
|
|
|
2429 like subprocess filters. However, occasionally a
|
|
|
2430 magic_event needs to be handled synchronously; in that
|
|
|
2431 case, the asynchronous handling of the magic_event will
|
|
|
2432 push an eval_event back onto the queue, which will be
|
|
|
2433 handled synchronously later. This is one of the
|
|
|
2434 reasons why eval_events exist; I'm not entirely happy
|
|
|
2435 with this aspect of this event model.
|
|
|
2436
|
|
|
2437
|
|
|
2438 The function `next-event' blocks and returns one of the above-described
|
|
|
2439 event objects. The function `dispatch-event' takes an event and processes
|
|
|
2440 it in the appropriate way.
|
|
|
2441
|
|
|
2442 For a process-event, dispatch-event calls the process's handler; for a
|
|
|
2443 mouse-motion event, the mouse-motion-handler hook is called, and so on.
|
|
|
2444 For magic-events, dispatch-event does window-system-dependent things,
|
|
|
2445 including calling some non-window-system-dependent hooks: map-frame-hook,
|
|
|
2446 unmap-frame-hook, mouse-enter-frame-hook, and mouse-leave-frame-hook.
|
|
|
2447
|
|
|
2448 The function `next-command-event' calls `next-event' until it gets a key or
|
|
|
2449 button from the user (that is, not a process, motion, timeout, or magic
|
|
|
2450 event). If it gets an event that is not a key or button, it calls
|
|
|
2451 `dispatch-event' on it immediately and reads another one. The
|
|
|
2452 next-command-event function could be implemented in Emacs Lisp, though it
|
|
|
2453 isn't. Generally one should call `next-command-event' instead of
|
|
|
2454 `next-event'.
|
|
|
2455
|
|
|
2456 read-char calls next-command-event; if it doesn't get an event that can be
|
|
|
2457 converted to an ASCII character, it signals an error. Otherwise it returns
|
|
|
2458 an integer.
|
|
|
2459
|
|
|
2460 The variable `last-command-char' always contains an integer, or nil (if the
|
|
|
2461 last read event has no ASCII equivalent, as when it is a mouse-click or a
|
|
|
2462 non-ASCII character chord.)
|
|
|
2463
|
|
|
2464 The new variable `last-command-event' holds an event object, that could be
|
|
|
2465 a non-ASCII character, a button click, a menu selection, etc.
|
|
|
2466
|
|
|
2467 The variable `unread-command-char' no longer exists, and has been replaced
|
|
|
2468 by `unread-command-events'. With the new event model, it is incorrect for
|
|
|
2469 code to do (setq unread-command-char (read-char)), because all user-input
|
|
|
2470 can't be represented as ASCII characters. *** This is an incompatible
|
|
|
2471 change. Code which sets `unread-command-char' must be updated to use the
|
|
|
2472 combination of `next-command-event' and `unread-command-events' instead.
|
|
|
2473
|
|
|
2474 The functions `this-command-keys' and `recent-keys' return a vector of
|
|
|
2475 event objects, instead of a string of ASCII characters. *** This also
|
|
|
2476 is an incompatible change.
|
|
|
2477
|
|
|
2478 Almost nothing happens at interrupt level; the SIGIO handler simply sets a
|
|
|
2479 flag, and later, the X event queue is scanned for KeyPress events which map
|
|
|
2480 to ^G. All redisplay happens in the main thread of the process.
|
|
|
2481
|
|
|
2482
|
|
|
2483 *** Keymaps
|
|
|
2484 -----------
|
|
|
2485
|
|
|
2486 Instead of keymaps being alists or obarrays, they are a new primary data
|
|
|
2487 type. The only user access to the contents of a keymap is through the
|
|
|
2488 existing keymap-manipulation functions, and a new function, map-keymap.
|
|
|
2489 This means that existing code that manipulates keymaps may need to
|
|
|
2490 be changed.
|
|
|
2491
|
|
|
2492 One of our goals with the new input and keymap code was to make more
|
|
|
2493 character combinations available for binding, besides just ASCII and
|
|
|
2494 function keys. We want to be able bind different commands to Control-a
|
|
|
2495 and Control-Shift-a; we also want it to be possible for the keys Control-h
|
|
|
2496 and Backspace (and Control-M and Return, and Control-I and Tab, etc) to
|
|
|
2497 be distinct.
|
|
|
2498
|
|
|
2499 One of the most common complaints that new Emacs users have is that backspace
|
|
|
2500 is help. The answer is to play around with the keyboard-translate-table, or
|
|
|
2501 be lucky enough to have a system administrator who has done this for you
|
|
|
2502 already; but if it were possible to bind backspace and C-h to different
|
|
|
2503 things, then (under a window manager at least) both backspace and delete
|
|
|
2504 would delete a character, and ^H would be help. There's no need to deal
|
|
|
2505 with xmodmap, kbd-translate-table, etc.
|
|
|
2506
|
|
|
2507 Here are some more examples: suppose you want to bind one function to Tab,
|
|
|
2508 and another to Control-Tab. This can't be done if Tab and Control-I are the
|
|
|
2509 same thing. What about control keys that have no ASCII equivalent, like
|
|
|
2510 Control-< ? One might want that to be bound to set-mark-at-point-min. We
|
|
|
2511 want M-C-Backspace to be kill-backward-sexp. But we want M-Backspace to be
|
|
|
2512 kill-backward-word. Again, this can't be done if Backspace and C-h are
|
|
|
2513 indistinguishable.
|
|
|
2514
|
|
|
2515 The user represents keys as a string of ASCII characters (when possible and
|
|
|
2516 convenient), or as a vector of event objects, or as a vector of "key
|
|
|
2517 description lists", that looks like (control a), or (control meta delete)
|
|
|
2518 or (shift f1). The order of the modifier-names is not significant, so
|
|
|
2519 (meta control x) and (control meta x) are the same.
|
|
|
2520
|
|
|
2521 `define-key' knows how to take any of the above representations and store them
|
|
|
2522 into a keymap. When Emacs wants to return a key sequence (this-command-keys,
|
|
|
2523 recent-keys, keyboard-macros, and read-key-sequence, for example) it returns
|
|
|
2524 a vector of event objects. Keyboard macros can also be represented as ASCII
|
|
|
2525 strings or as vectors of key description lists.
|
|
|
2526
|
|
|
2527 This is an incompatible change: code which calls `this-command-keys',
|
|
|
2528 `recent-keys', `read-key-sequence', or manipulates keyboard-macros probably
|
|
|
2529 needs to be changed so that it no longer assumes that the returned value is a
|
|
|
2530 string.
|
|
|
2531
|
|
|
2532 Control-Shift-a is specified as (control A), not (control shift a), since A
|
|
|
2533 is a two-case character. But for keys that don't have an upper case
|
|
|
2534 version, like F1, Backspace, and Escape, you use the (shift backspace) syntax.
|
|
|
2535
|
|
|
2536 See the doc string for our version of define-key, reproduced below in the
|
|
|
2537 `Changed Functions' section. Note that when the KEYS argument is a string,
|
|
|
2538 it has the same semantics as the v18 define-key.
|
|
|
2539
|
|
|
2540
|
|
|
2541 *** Xt Integration
|
|
|
2542 ------------------
|
|
|
2543
|
|
|
2544 The heart of the event loop is implemented in terms of the Xt event functions
|
|
|
2545 (specifically XtAppProcessEvent), and uses Xt's concept of timeouts and
|
|
|
2546 file-descriptor callbacks, eliminating a large amount of system-dependent code
|
|
|
2547 (Xt does it for you.)
|
|
|
2548
|
|
|
2549 If Emacs is compiled with support for X, it uses the Xt event loop even when
|
|
|
2550 Emacs is not running on an X display (the Xt event loop supports this). This
|
|
|
2551 makes it possible to run Emacs on a dumb TTY, and later connect it to one or
|
|
|
2552 more X servers. It should also be possible to later connect an existing Emacs
|
|
|
2553 process to additional TTY's, although this code is still experimental. (Our
|
|
|
2554 intent at this point is not to have an Emacs that is being used by multiple
|
|
|
2555 people at the same time: it is to make it possible for someone to go home, log
|
|
|
2556 in on a dialup line, and connect to the same Emacs process that is running
|
|
|
2557 under X in their office without having to recreate their buffer state and so
|
|
|
2558 on.)
|
|
|
2559
|
|
|
2560 If Emacs is not compiled with support for X, then it instead uses more general
|
|
|
2561 code, something like what v18 does; but this way of doing things is a lot more
|
|
|
2562 modular.
|
|
|
2563
|
|
|
2564 (Linking Emacs with Xt seems to only add about 300k to the executable size,
|
|
|
2565 compared with an Emacs linked with Xlib only.)
|
|
|
2566
|
|
|
2567
|
|
|
2568 *** Region Highlighting
|
|
|
2569 -----------------------
|
|
|
2570
|
|
|
2571 If the variable `zmacs-regions' is true, then the region between point and
|
|
|
2572 mark will be highlighted when "active". Those commands which push a mark
|
|
|
2573 (such as C-SPC, and C-x C-x) make the region become "active" and thus
|
|
|
2574 highlighted. Most commands (all non-motion commands, basically) cause it to
|
|
|
2575 become non-highlighted (non-"active"). Commands that operate on the region
|
|
|
2576 (such as C-w, C-x C-l, etc.) only work if the region is in the highlighted
|
|
|
2577 state.
|
|
|
2578
|
|
|
2579 zmacs-activate-region-hook and zmacs-deactivate-region-hook are run at the
|
|
|
2580 appropriate times; under X, zmacs-activate-region-hook makes the X selection
|
|
|
2581 be the region between point and mark, thus doing two things at once: making
|
|
|
2582 the region and the X selection be the same; and making the region highlight
|
|
|
2583 in the same way as the X selection.
|
|
|
2584
|
|
|
2585 If `zmacs-regions' is true, then the `mark-marker' command returns nil unless
|
|
|
2586 the region is currently in the active (highlighted) state. With an argument
|
|
|
2587 of t, this returns the mark (if there is one) regardless of the active-region
|
|
|
2588 state. You should *generally* not use the mark unless the region is active,
|
|
|
2589 if the user has expressed a preference for the active-region model. Watch
|
|
|
2590 out! Moving this marker changes the mark position. If you set the marker not
|
|
|
2591 to point anywhere, the buffer will have no mark.
|
|
|
2592
|
|
|
2593 In this way, the primary selection is a fairly transitory entity; but
|
|
|
2594 when something is copied to the kill ring, it is made the Clipboard
|
|
|
2595 selection. It is also stored into CUT_BUFFER0, for compatibility with
|
|
|
2596 X applications that don't understand selections (like Emacs18).
|
|
|
2597
|
|
|
2598 Compatibility note: if you have code which uses (mark) or (mark-marker),
|
|
|
2599 then you need to either: change those calls to (mark t) or (mark-marker t);
|
|
|
2600 or simply bind `zmacs-regions' to nil around the call to mark or mark-marker.
|
|
|
2601 This is probably the best solution, since it will work in Emacs 18 as well.
|
|
|
2602
|
|
|
2603
|
|
|
2604 *** Menubars and Dialog Boxes
|
|
|
2605 -----------------------------
|
|
|
2606
|
|
|
2607 Here is an example of a menubar definition:
|
|
|
2608
|
|
|
2609 (defvar default-menubar
|
|
|
2610 '(("File" ["Open File..." find-file t]
|
|
|
2611 ["Save Buffer" save-buffer t]
|
|
|
2612 ["Save Buffer As..." write-file t]
|
|
|
2613 ["Revert Buffer" revert-buffer t]
|
|
|
2614 "-----"
|
|
|
2615 ["Print Buffer" lpr-buffer t]
|
|
|
2616 "-----"
|
|
|
2617 ["Delete Frame" delete-frame t]
|
|
|
2618 ["Kill Buffer..." kill-buffer t]
|
|
|
2619 ["Exit Emacs" save-buffers-kill-emacs t]
|
|
|
2620 )
|
|
|
2621 ("Edit" ["Undo" advertised-undo t]
|
|
|
2622 ["Cut" kill-primary-selection t]
|
|
|
2623 ["Copy" copy-primary-selection t]
|
|
|
2624 ["Paste" yank-clipboard-selection t]
|
|
|
2625 ["Clear" delete-primary-selection t]
|
|
|
2626 )
|
|
|
2627 ...))
|
|
|
2628
|
|
|
2629 The first element of each menu item is the string to print on the menu.
|
|
|
2630
|
|
|
2631 The second element is the callback function; if it is a symbol, it is
|
|
|
2632 invoked with `call-interactively.' If it is a list, it is invoked with
|
|
|
2633 `eval'.
|
|
|
2634
|
|
|
2635 If the second element is a symbol, then the menu also displays the key that
|
|
|
2636 is bound to that command (if any).
|
|
|
2637
|
|
|
2638 The third element of the menu items determines whether the item is selectable.
|
|
|
2639 It may be t, nil, or a form to evaluate. Also, a hook is run just before a
|
|
|
2640 menu is exposed, which can be used to change the value of these slots.
|
|
|
2641 For example, there is a hook that makes the "undo" menu item be selectable
|
|
|
2642 only in the cases when `advertised-undo' would not signal an error.
|
|
|
2643
|
|
|
2644 Menus may have other menus nested within them; they will cascade.
|
|
|
2645
|
|
|
2646 There are utility functions for adding items to menus, deleting items,
|
|
|
2647 disabling them, etc.
|
|
|
2648
|
|
|
2649 The function `popup-menu' takes a menu description and pops it up.
|
|
|
2650
|
|
|
2651 The function `popup-dialog-box' takes a dialog-box description and pops
|
|
|
2652 it up. Dialog box descriptions look a lot like menu descriptions.
|
|
|
2653
|
|
|
2654 The menubar, menu, and dialog-box code is implemented as a library,
|
|
|
2655 with an interface which hides the toolkit that implements it.
|
|
|
2656
|
|
|
2657
|
|
|
2658 *** Isearch Changes
|
|
|
2659 -------------------
|
|
|
2660
|
|
|
2661 Isearch has been reimplemented in a different way, adding some new features,
|
|
|
2662 and causing a few incompatible changes.
|
|
|
2663
|
|
|
2664 - the old isearch-*-char variables are no longer supported. In the old
|
|
|
2665 system, one could make ^A mean "repeat the search" by doing something
|
|
|
2666 like (setq search-repeat-char ?C-a). In the new system, this is
|
|
|
2667 accomplished with
|
|
|
2668
|
|
|
2669 (define-key isearch-mode-map "\C-a" 'isearch-repeat-forward)
|
|
|
2670
|
|
|
2671 - The advantage of using the normal keymap mechanism for this is that you
|
|
|
2672 can bind more than one key to an isearch command: for example, both C-a
|
|
|
2673 and C-s could do the same thing inside isearch mode. You can also bind
|
|
|
2674 multi-key sequences inside of isearch mode, and bind non-ASCII keys.
|
|
|
2675 For example, to use the F1 key to terminate a search:
|
|
|
2676
|
|
|
2677 (define-key isearch-mode-map 'f1 'isearch-exit)
|
|
|
2678
|
|
|
2679 or to make ``C-c C-c'' terminate a search:
|
|
|
2680
|
|
|
2681 (define-key isearch-mode-map "\C-c\C-c" 'isearch-exit)
|
|
|
2682
|
|
|
2683 - If isearch is behaving case-insensitively (the default) and you type an
|
|
|
2684 upper case character, then the search will become case-sensitive. This
|
|
|
2685 can be disabled by setting `search-caps-disable-folding' to nil.
|
|
|
2686
|
|
|
2687 - There is a history ring of the strings previously searched for; typing
|
|
|
2688 M-p or M-n while searching will cycle through this ring. Typing M-TAB
|
|
|
2689 will do completion across the set of items in the history ring.
|
|
|
2690
|
|
|
2691 - The ESC key is no longer used to terminate an incremental search. The
|
|
|
2692 RET key should be used instead. This change is necessary for it to be
|
|
|
2693 possible to bind "meta" characters to isearch commands.
|
|
|
2694
|
|
|
2695
|
|
|
2696 *** Startup Code Changes
|
|
|
2697 ------------------------
|
|
|
2698
|
|
|
2699 The initial X frame is mapped before the user's .emacs file is executed.
|
|
|
2700 Without this, there is no way for the user to see any error messages
|
|
|
2701 generated by their .emacs file, any windows created by the .emacs file
|
|
|
2702 don't show up, and the copyleft notice isn't shown.
|
|
|
2703
|
|
|
2704 The default values for load-path, exec-path, lock-directory, and
|
|
|
2705 Info-directory-list are not (necessarily) built into Emacs, but are
|
|
|
2706 computed at startup time.
|
|
|
2707
|
|
|
2708 First, Emacs looks at the directory in which its executable file resides:
|
|
|
2709
|
|
|
2710 o If that directory contains subdirectories named "lisp" and "lib-src",
|
|
|
2711 then those directories are used as the lisp library and exec directory.
|
|
|
2712
|
|
|
2713 o If the parent of the directory in which the emacs executable is located
|
|
|
2714 contains "lisp" and "lib-src" subdirectories, then those are used.
|
|
|
2715
|
|
|
2716 o If ../lib/xemacs-<version> (starting from the directory in which the
|
|
|
2717 emacs executable is located) contains a "lisp" subdirectory and either
|
|
|
2718 a "lib-src" subdirectory or a <configuration-name> subdirectory, then
|
|
|
2719 those are used.
|
|
|
2720
|
|
|
2721 o If the emacs executable that was run is a symbolic link, then the link
|
|
|
2722 is chased, and the resultant directory is checked as above.
|
|
|
2723
|
|
|
2724 (Actually, it doesn't just look for "lisp/", it looks for "lisp/prim/",
|
|
|
2725 which reduces the chances of a false positive.)
|
|
|
2726
|
|
|
2727 If the lisp directory contains subdirectories, they are added to the default
|
|
|
2728 load-path as well. If the site-lisp directory exists and contains
|
|
|
2729 subdirectories, they are then added. Subdirectories whose names begin with
|
|
|
2730 a dot or a hyphen are not added to the load-path.
|
|
|
2731
|
|
|
2732 These heuristics fail if the Emacs binary was copied from the main Emacs
|
|
|
2733 tree to some other directory, and links for the lisp directory were not put
|
|
|
2734 in. This isn't much of a restriction: either make there be subdirectories
|
|
|
2735 (or symbolic links) of the directory of the emacs executable, or make the
|
|
|
2736 "installed" emacs executable be a symbolic link to an executable in a more
|
|
|
2737 appropriate directory structure. For example, this setup works:
|
|
|
2738
|
|
|
2739 /usr/local/xemacs/xemacs* ; The executable.
|
|
|
2740 /usr/local/xemacs/lisp/ ; The associated directories.
|
|
|
2741 /usr/local/xemacs/etc/ ; Any of the files in this list
|
|
|
2742 /usr/local/xemacs/lock/ ; could be symbolic links as well.
|
|
|
2743 /usr/local/xemacs/info/
|
|
|
2744
|
|
|
2745 As does this:
|
|
|
2746
|
|
|
2747 /usr/local/bin/xemacs -> ../xemacs/src/xemacs-19.14 ; A link...
|
|
|
2748 /usr/local/xemacs/src/xemacs-19.14* ; The executable,
|
|
|
2749 /usr/local/xemacs/lisp/ ; and the rest of
|
|
|
2750 /usr/local/xemacs/etc/ ; the source tree
|
|
|
2751 /usr/local/xemacs/lock/
|
|
|
2752 /usr/local/xemacs/info/
|
|
|
2753
|
|
|
2754 This configuration might be used for a multi-architecture installation; assume
|
|
|
2755 that $LOCAL refers to a directory which contains only files specific to a
|
|
|
2756 particular architecture (i.e., executables) and $SHARED refers to those files
|
|
|
2757 which are not machine specific (i.e., lisp code and documentation.)
|
|
|
2758
|
|
|
2759 $LOCAL/bin/xemacs@ -> $LOCAL/xemacs-19.14/xemacs*
|
|
|
2760 $LOCAL/xemacs-19.14/lisp@ -> $SHARED/xemacs-19.14/lisp/
|
|
|
2761 $LOCAL/xemacs-19.14/etc@ -> $SHARED/xemacs-19.14/etc/
|
|
|
2762 $LOCAL/xemacs-19.14/info@ -> $SHARED/xemacs-19.14/info/
|
|
|
2763
|
|
|
2764 The following would also work, but the above is probably more attractive:
|
|
|
2765
|
|
|
2766 $LOCAL/bin/xemacs*
|
|
|
2767 $LOCAL/bin/lisp@ -> $SHARED/xemacs-19.14/lisp/
|
|
|
2768 $LOCAL/bin/etc@ -> $SHARED/xemacs-19.14/etc/
|
|
|
2769 $LOCAL/bin/info@ -> $SHARED/xemacs-19.14/info/
|
|
|
2770
|
|
|
2771 If Emacs can't find the requisite directories, it writes a message like this
|
|
|
2772 (or some appropriate subset of it) to stderr:
|
|
|
2773
|
|
|
2774 WARNING:
|
|
|
2775 couldn't find an obvious default for load-path, exec-directory, and
|
|
|
2776 lock-directory, and there were no defaults specified in paths.h when
|
|
|
2777 Emacs was built. Perhaps some directories don't exist, or the Emacs
|
|
|
2778 executable, /cadillac-th/jwz/somewhere/xemacs is in a strange place?
|
|
|
2779
|
|
|
2780 Without both exec-directory and load-path, Emacs will be very broken.
|
|
|
2781 Consider making a symbolic link from /cadillac-th/jwz/somewhere/etc
|
|
|
2782 to wherever the appropriate Emacs etc/ directory is, and from
|
|
|
2783 /cadillac-th/jwz/somewhere/lisp/ to wherever the appropriate Emacs
|
|
|
2784 lisp library is.
|
|
|
2785
|
|
|
2786 Without lock-directory set, file locking won't work. Consider
|
|
|
2787 creating /cadillac-th/jwz/somewhere/lock as a directory or symbolic
|
|
|
2788 link for use as the lock directory.
|
|
|
2789
|
|
|
2790 The default installation tree is the following:
|
|
|
2791
|
|
|
2792 /usr/local/bin/b2m ;
|
|
|
2793 ctags ; executables that
|
|
|
2794 emacsclient ; should be in
|
|
|
2795 etags ; user's path
|
|
|
2796 xemacs -> xemacs-<version> ;
|
|
|
2797 xemacs ;
|
|
|
2798 /usr/local/lib/xemacs/site-lisp
|
|
|
2799 /usr/local/lib/xemacs/lock
|
|
|
2800 /usr/local/lib/xemacs-<version>/etc ; architecture ind. files
|
|
|
2801 /usr/local/lib/xemacs-<version>/info
|
|
|
2802 /usr/local/lib/xemacs-<version>/lisp
|
|
|
2803 /usr/local/lib/xemacs-<version>/<configuration> ; binaries emacs may run
|
|
|
2804
|
|
|
2805
|
|
|
2806 *** X Resources
|
|
|
2807 ---------------
|
|
|
2808
|
|
|
2809 (Note: This section is copied verbatim from the XEmacs Reference Manual.)
|
|
|
2810
|
|
|
2811 The Emacs resources are generally set per-frame. Each Emacs frame
|
|
|
2812 can have its own name or the same name as another, depending on the
|
|
|
2813 name passed to the `make-frame' function.
|
|
|
2814
|
|
|
2815 You can specify resources for all frames with the syntax:
|
|
|
2816
|
|
|
2817 Emacs*parameter: value
|
|
|
2818
|
|
|
2819 or
|
|
|
2820
|
|
|
2821 Emacs*EmacsFrame.parameter:value
|
|
|
2822
|
|
|
2823 You can specify resources for a particular frame with the syntax:
|
|
|
2824
|
|
|
2825 Emacs*FRAME-NAME.parameter: value
|
|
|
2826
|
|
|
2827
|
|
|
2828 **** Geometry Resources
|
|
|
2829 -----------------------
|
|
|
2830
|
|
|
2831 To make the default size of all Emacs frames be 80 columns by 55
|
|
|
2832 lines, do this:
|
|
|
2833
|
|
|
2834 Emacs*EmacsFrame.geometry: 80x55
|
|
|
2835
|
|
|
2836 To set the geometry of a particular frame named `fred', do this:
|
|
|
2837
|
|
|
2838 Emacs*fred.geometry: 80x55
|
|
|
2839
|
|
|
2840 Important! Do not use the following syntax:
|
|
|
2841
|
|
|
2842 Emacs*geometry: 80x55
|
|
|
2843
|
|
|
2844 You should never use `*geometry' with any X application. It does not
|
|
|
2845 say "make the geometry of Emacs be 80 columns by 55 lines." It really
|
|
|
2846 says, "make Emacs and all subwindows thereof be 80x55 in whatever units
|
|
|
2847 they care to measure in." In particular, that is both telling the
|
|
|
2848 Emacs text pane to be 80x55 in characters, and telling the menubar pane
|
|
|
2849 to be 80x55 pixels, which is surely not what you want.
|
|
|
2850
|
|
|
2851 As a special case, this geometry specification also works (and sets
|
|
|
2852 the default size of all Emacs frames to 80 columns by 55 lines):
|
|
|
2853
|
|
|
2854 Emacs.geometry: 80x55
|
|
|
2855
|
|
|
2856 since that is the syntax used with most other applications (since most
|
|
|
2857 other applications have only one top-level window, unlike Emacs). In
|
|
|
2858 general, however, the top-level shell (the unmapped ApplicationShell
|
|
|
2859 widget named `Emacs' that is the parent of the shell widgets that
|
|
|
2860 actually manage the individual frames) does not have any interesting
|
|
|
2861 resources on it, and you should set the resources on the frames instead.
|
|
|
2862
|
|
|
2863 The `-geometry' command-line argument sets only the geometry of the
|
|
|
2864 initial frame created by Emacs.
|
|
|
2865
|
|
|
2866 A more complete explanation of geometry-handling is
|
|
|
2867
|
|
|
2868 * The `-geometry' command-line option sets the `Emacs.geometry'
|
|
|
2869 resource, that is, the geometry of the ApplicationShell.
|
|
|
2870
|
|
|
2871 * For the first frame created, the size of the frame is taken from
|
|
|
2872 the ApplicationShell if it is specified, otherwise from the
|
|
|
2873 geometry of the frame.
|
|
|
2874
|
|
|
2875 * For subsequent frames, the order is reversed: First the frame, and
|
|
|
2876 then the ApplicationShell.
|
|
|
2877
|
|
|
2878 * For the first frame created, the position of the frame is taken
|
|
|
2879 from the ApplicationShell (`Emacs.geometry') if it is specified,
|
|
|
2880 otherwise from the geometry of the frame.
|
|
|
2881
|
|
|
2882 * For subsequent frames, the position is taken only from the frame,
|
|
|
2883 and never from the ApplicationShell.
|
|
|
2884
|
|
|
2885 This is rather complicated, but it does seem to provide the most
|
|
|
2886 intuitive behavior with respect to the default sizes and positions of
|
|
|
2887 frames created in various ways.
|
|
|
2888
|
|
|
2889
|
|
|
2890 **** Iconic Resources
|
|
|
2891 ---------------------
|
|
|
2892
|
|
|
2893 Analogous to `-geometry', the `-iconic' command-line option sets the
|
|
|
2894 iconic flag of the ApplicationShell (`Emacs.iconic') and always applies
|
|
|
2895 to the first frame created regardless of its name. However, it is
|
|
|
2896 possible to set the iconic flag on particular frames (by name) by using
|
|
|
2897 the `Emacs*FRAME-NAME.iconic' resource.
|
|
|
2898
|
|
|
2899
|
|
|
2900 **** Resource List
|
|
|
2901 ------------------
|
|
|
2902
|
|
|
2903 Emacs frames accept the following resources:
|
|
|
2904
|
|
|
2905 `geometry' (class `Geometry'): string
|
|
|
2906 Initial geometry for the frame. *Note Geometry Resources:: for a
|
|
|
2907 complete discussion of how this works.
|
|
|
2908
|
|
|
2909 `iconic' (class `Iconic'): boolean
|
|
|
2910 Whether this frame should appear in the iconified state.
|
|
|
2911
|
|
|
2912 `internalBorderWidth' (class `InternalBorderWidth'): int
|
|
|
2913 How many blank pixels to leave between the text and the edge of the
|
|
|
2914 window.
|
|
|
2915
|
|
|
2916 `interline' (class `Interline'): int
|
|
|
2917 How many pixels to leave between each line (may not be
|
|
|
2918 implemented).
|
|
|
2919
|
|
|
2920 `menubar' (class `Menubar'): boolean
|
|
|
2921 Whether newly-created frames should initially have a menubar. Set
|
|
|
2922 to true by default.
|
|
|
2923
|
|
|
2924 `initiallyUnmapped' (class `InitiallyUnmapped'): boolean
|
|
|
2925 Whether XEmacs should leave the initial frame unmapped when it
|
|
|
2926 starts up. This is useful if you are starting XEmacs as a server
|
|
|
2927 (e.g. in conjunction with gnuserv or the external client widget).
|
|
|
2928 You can also control this with the `-unmapped' command-line option.
|
|
|
2929
|
|
|
2930 `barCursor' (class `BarColor'): boolean
|
|
|
2931 Whether the cursor should be displayed as a bar, or the
|
|
|
2932 traditional box.
|
|
|
2933
|
|
|
2934 `textPointer' (class `Cursor'): cursor-name
|
|
|
2935 The cursor to use when the mouse is over text. This resource is
|
|
|
2936 used to initialize the variable `x-pointer-shape'.
|
|
|
2937
|
|
|
2938 `selectionPointer' (class `Cursor'): cursor-name
|
|
|
2939 The cursor to use when the mouse is over a selectable text region
|
|
|
2940 (an extent with the `highlight' property; for example, an Info
|
|
|
2941 cross-reference). This resource is used to initialize the variable
|
|
|
2942 `x-selection-pointer-shape'.
|
|
|
2943
|
|
|
2944 `spacePointer' (class `Cursor'): cursor-name
|
|
|
2945 The cursor to use when the mouse is over a blank space in a buffer
|
|
|
2946 (that is, after the end of a line or after the end-of-file). This
|
|
|
2947 resource is used to initialize the variable
|
|
|
2948 `x-nontext-pointer-shape'.
|
|
|
2949
|
|
|
2950 `modeLinePointer' (class `Cursor'): cursor-name
|
|
|
2951 The cursor to use when the mouse is over a mode line. This
|
|
|
2952 resource is used to initialize the variable `x-mode-pointer-shape'.
|
|
|
2953
|
|
|
2954 `gcPointer' (class `Cursor'): cursor-name
|
|
|
2955 The cursor to display when a garbage-collection is in progress.
|
|
|
2956 This resource is used to initialize the variable
|
|
|
2957 `x-gc-pointer-shape'.
|
|
|
2958
|
|
|
2959 `scrollbarPointer' (class `Cursor'): cursor-name
|
|
|
2960 The cursor to use when the mouse is over the scrollbar. This
|
|
|
2961 resource is used to initialize the variable
|
|
|
2962 `x-scrollbar-pointer-shape'.
|
|
|
2963
|
|
|
2964 `pointerColor' (class `Foreground'): color-name
|
|
|
2965 `pointerBackground' (class `Background'): color-name
|
|
|
2966 The foreground and background colors of the mouse cursor. These
|
|
|
2967 resources are used to initialize the variables
|
|
|
2968 `x-pointer-foreground-color' and `x-pointer-background-color'.
|
|
|
2969
|
|
|
2970 `scrollBarWidth' (class `ScrollBarWidth'): integer
|
|
|
2971 How wide the vertical scrollbars should be, in pixels; 0 means no
|
|
|
2972 vertical scrollbars. You can also use a resource specification of
|
|
|
2973 the form `*scrollbar.width', or the usual toolkit scrollbar
|
|
|
2974 resources: `*XmScrollBar.width' (Motif), `*XlwScrollBar.width'
|
|
|
2975 (Lucid), or `*Scrollbar.thickness' (Athena). We don't recommend
|
|
|
2976 that you use the toolkit resources, though, because they're
|
|
|
2977 dependent on how exactly your particular build of XEmacs was
|
|
|
2978 configured.
|
|
|
2979
|
|
|
2980 `scrollBarHeight' (class `ScrollBarHeight'): integer
|
|
|
2981 How high the horizontal scrollbars should be, in pixels; 0 means no
|
|
|
2982 horizontal scrollbars. You can also use a resource specification
|
|
|
2983 of the form `*scrollbar.height', or the usual toolkit scrollbar
|
|
|
2984 resources: `*XmScrollBar.height' (Motif), `*XlwScrollBar.height'
|
|
|
2985 (Lucid), or `*Scrollbar.thickness' (Athena). We don't recommend
|
|
|
2986 that you use the toolkit resources, though, because they're
|
|
|
2987 dependent on how exactly your particular build of XEmacs was
|
|
|
2988 configured.
|
|
|
2989
|
|
|
2990 `scrollBarPlacement' (class `ScrollBarPlacement'): string
|
|
|
2991 Where the horizontal and vertical scrollbars should be positioned.
|
|
|
2992 This should be one of the four strings `bottom-left',
|
|
|
2993 `bottom-right', `top-left', and `top-right'. Default is
|
|
|
2994 `bottom-right' for the Motif and Lucid scrollbars and
|
|
|
2995 `bottom-left' for the Athena scrollbars.
|
|
|
2996
|
|
|
2997 `topToolBarHeight' (class `TopToolBarHeight'): integer
|
|
|
2998 `bottomToolBarHeight' (class `BottomToolBarHeight'): integer
|
|
|
2999 `leftToolBarWidth' (class `LeftToolBarWidth'): integer
|
|
|
3000 `rightToolBarWidth' (class `RightToolBarWidth'): integer
|
|
|
3001 Height and width of the four possible toolbars.
|
|
|
3002
|
|
|
3003 `topToolBarShadowColor' (class `TopToolBarShadowColor'): color-name
|
|
|
3004 `bottomToolBarShadowColor' (class `BottomToolBarShadowColor'): color-name
|
|
|
3005 Color of the top and bottom shadows for the toolbars. NOTE: These
|
|
|
3006 resources do *not* have anything to do with the top and bottom
|
|
|
3007 toolbars (i.e. the toolbars at the top and bottom of the frame)!
|
|
|
3008 Rather, they affect the top and bottom shadows around the edges of
|
|
|
3009 all four kinds of toolbars.
|
|
|
3010
|
|
|
3011 `topToolBarShadowPixmap' (class `TopToolBarShadowPixmap'): pixmap-name
|
|
|
3012 `bottomToolBarShadowPixmap' (class `BottomToolBarShadowPixmap'): pixmap-name
|
|
|
3013 Pixmap of the top and bottom shadows for the toolbars. If set,
|
|
|
3014 these resources override the corresponding color resources. NOTE:
|
|
|
3015 These resources do *not* have anything to do with the top and
|
|
|
3016 bottom toolbars (i.e. the toolbars at the top and bottom of the
|
|
|
3017 frame)! Rather, they affect the top and bottom shadows around the
|
|
|
3018 edges of all four kinds of toolbars.
|
|
|
3019
|
|
|
3020 `toolBarShadowThickness' (class `ToolBarShadowThickness'): integer
|
|
|
3021 Thickness of the shadows around the toolbars, in pixels.
|
|
|
3022
|
|
|
3023 `visualBell' (class `VisualBell'): boolean
|
|
|
3024 Whether XEmacs should flash the screen rather than making an
|
|
|
3025 audible beep.
|
|
|
3026
|
|
|
3027 `bellVolume' (class `BellVolume'): integer
|
|
|
3028 Volume of the audible beep.
|
|
|
3029
|
|
|
3030 `useBackingStore' (class `UseBackingStore'): boolean
|
|
|
3031 Whether XEmacs should set the backing-store attribute of the X
|
|
|
3032 windows it creates. This increases the memory usage of the X
|
|
|
3033 server but decreases the amount of X traffic necessary to update
|
|
|
3034 the screen, and is useful when the connection to the X server goes
|
|
|
3035 over a low-bandwidth line such as a modem connection.
|
|
|
3036
|
|
|
3037
|
|
|
3038 **** Face Resources
|
|
|
3039 -------------------
|
|
|
3040
|
|
|
3041 The attributes of faces are also per-frame. They can be specified as:
|
|
|
3042
|
|
|
3043 Emacs.FACE_NAME.parameter: value
|
|
|
3044
|
|
|
3045 (*do not* use `Emacs*FACE_NAME...')
|
|
|
3046
|
|
|
3047 or
|
|
|
3048
|
|
|
3049 Emacs*FRAME_NAME.FACE_NAME.parameter: value
|
|
|
3050
|
|
|
3051 Faces accept the following resources:
|
|
|
3052
|
|
|
3053 `attributeFont' (class `AttributeFont'): font-name
|
|
|
3054 The font of this face.
|
|
|
3055
|
|
|
3056 `attributeForeground' (class `AttributeForeground'): color-name
|
|
|
3057 `attributeBackground' (class `AttributeBackground'): color-name
|
|
|
3058 The foreground and background colors of this face.
|
|
|
3059
|
|
|
3060 `attributeBackgroundPixmap' (class `AttributeBackgroundPixmap'): file-name
|
|
|
3061 The name of an XBM file (or XPM file, if your version of Emacs
|
|
|
3062 supports XPM), to use as a background stipple.
|
|
|
3063
|
|
|
3064 `attributeUnderline' (class `AttributeUnderline'): boolean
|
|
|
3065 Whether text in this face should be underlined.
|
|
|
3066
|
|
|
3067 All text is displayed in some face, defaulting to the face named
|
|
|
3068 `default'. To set the font of normal text, use
|
|
|
3069 `Emacs*default.attributeFont'. To set it in the frame named `fred', use
|
|
|
3070 `Emacs*fred.default.attributeFont'.
|
|
|
3071
|
|
|
3072 These are the names of the predefined faces:
|
|
|
3073
|
|
|
3074 `default'
|
|
|
3075 Everything inherits from this.
|
|
|
3076
|
|
|
3077 `bold'
|
|
|
3078 If this is not specified in the resource database, Emacs tries to
|
|
|
3079 find a bold version of the font of the default face.
|
|
|
3080
|
|
|
3081 `italic'
|
|
|
3082 If this is not specified in the resource database, Emacs tries to
|
|
|
3083 find an italic version of the font of the default face.
|
|
|
3084
|
|
|
3085 `bold-italic'
|
|
|
3086 If this is not specified in the resource database, Emacs tries to
|
|
|
3087 find a bold-italic version of the font of the default face.
|
|
|
3088
|
|
|
3089 `modeline'
|
|
|
3090 This is the face that the modeline is displayed in. If not
|
|
|
3091 specified in the resource database, it is determined from the
|
|
|
3092 default face by reversing the foreground and background colors.
|
|
|
3093
|
|
|
3094 `highlight'
|
|
|
3095 This is the face that highlighted extents (for example, Info
|
|
|
3096 cross-references and possible completions, when the mouse passes
|
|
|
3097 over them) are displayed in.
|
|
|
3098
|
|
|
3099 `left-margin'
|
|
|
3100 `right-margin'
|
|
|
3101 These are the faces that the left and right annotation margins are
|
|
|
3102 displayed in.
|
|
|
3103
|
|
|
3104 `zmacs-region'
|
|
|
3105 This is the face that mouse selections are displayed in.
|
|
|
3106
|
|
|
3107 `text-cursor'
|
|
|
3108 This is the face that the cursor is displayed in.
|
|
|
3109
|
|
|
3110 `isearch'
|
|
|
3111 This is the face that the matched text being searched for is
|
|
|
3112 displayed in.
|
|
|
3113
|
|
|
3114 `info-node'
|
|
|
3115 This is the face of info menu items. If unspecified, it is copied
|
|
|
3116 from `bold-italic'.
|
|
|
3117
|
|
|
3118 `info-xref'
|
|
|
3119 This is the face of info cross-references. If unspecified, it is
|
|
|
3120 copied from `bold'. (Note that, when the mouse passes over a
|
|
|
3121 cross-reference, the cross-reference's face is determined from a
|
|
|
3122 combination of the `info-xref' and `highlight' faces.)
|
|
|
3123
|
|
|
3124 Other packages might define their own faces; to see a list of all
|
|
|
3125 faces, use any of the interactive face-manipulation commands such as
|
|
|
3126 `set-face-font' and type `?' when you are prompted for the name of a
|
|
|
3127 face.
|
|
|
3128
|
|
|
3129 If the `bold', `italic', and `bold-italic' faces are not specified
|
|
|
3130 in the resource database, then XEmacs attempts to derive them from the
|
|
|
3131 font of the default face. It can only succeed at this if you have
|
|
|
3132 specified the default font using the XLFD (X Logical Font Description)
|
|
|
3133 format, which looks like
|
|
|
3134
|
|
|
3135 *-courier-medium-r-*-*-*-120-*-*-*-*-*-*
|
|
|
3136
|
|
|
3137 If you use any of the other, less strict font name formats, some of
|
|
|
3138 which look like
|
|
|
3139
|
|
|
3140 lucidasanstypewriter-12
|
|
|
3141 fixed
|
|
|
3142 9x13
|
|
|
3143
|
|
|
3144 then XEmacs won't be able to guess the names of the bold and italic
|
|
|
3145 versions. All X fonts can be referred to via XLFD-style names, so you
|
|
|
3146 should use those forms. See the man pages for `X(1)', `xlsfonts(1)',
|
|
|
3147 and `xfontsel(1)'.
|
|
|
3148
|
|
|
3149
|
|
|
3150 **** Widgets
|
|
|
3151 ------------
|
|
|
3152
|
|
|
3153 There are several structural widgets between the terminal EmacsFrame
|
|
|
3154 widget and the top level ApplicationShell; the exact names and types of
|
|
|
3155 these widgets change from release to release (for example, they changed
|
|
|
3156 in 19.9, 19.10, 19.12, and 19.13) and are subject to further change in
|
|
|
3157 the future, so you should avoid mentioning them in your resource database.
|
|
|
3158 The above-mentioned syntaxes should be forward-compatible. As of 19.14,
|
|
|
3159 the exact widget hierarchy is as follows:
|
|
|
3160
|
|
|
3161 INVOCATION-NAME "shell" "container" FRAME-NAME
|
|
|
3162 x-emacs-application-class "TopLevelEmacsShell" "EmacsManager" "EmacsFrame"
|
|
|
3163
|
|
|
3164 (for normal frames)
|
|
|
3165
|
|
|
3166 or
|
|
|
3167
|
|
|
3168 INVOCATION-NAME "shell" "container" FRAME-NAME
|
|
|
3169 x-emacs-application-class "TransientEmacsShell" "EmacsManager" "EmacsFrame"
|
|
|
3170
|
|
|
3171 (for popup/dialog-box frames)
|
|
|
3172
|
|
|
3173 where INVOCATION-NAME is the terminal component of the name of the
|
|
|
3174 XEmacs executable (usually `xemacs'), and `x-emacs-application-class'
|
|
|
3175 is generally `Emacs'.
|
|
|
3176
|
|
|
3177
|
|
|
3178 **** Menubar Resources
|
|
|
3179 ----------------------
|
|
|
3180
|
|
|
3181 As the menubar is implemented as a widget which is not a part of
|
|
|
3182 XEmacs proper, it does not use the face mechanism for specifying fonts
|
|
|
3183 and colors: It uses whatever resources are appropriate to the type of
|
|
|
3184 widget which is used to implement it.
|
|
|
3185
|
|
|
3186 If Emacs was compiled to use only the Motif-lookalike menu widgets,
|
|
|
3187 then one way to specify the font of the menubar would be
|
|
|
3188
|
|
|
3189 Emacs*menubar*font: *-courier-medium-r-*-*-*-120-*-*-*-*-*-*
|
|
|
3190
|
|
|
3191 If the Motif library is being used, then one would have to use
|
|
|
3192
|
|
|
3193 Emacs*menubar*fontList: *-courier-medium-r-*-*-*-120-*-*-*-*-*-*
|
|
|
3194
|
|
|
3195 because the Motif library uses the `fontList' resource name instead
|
|
|
3196 of `font', which has subtly different semantics.
|
|
|
3197
|
|
|
3198 The same is true of the scrollbars: They accept whichever resources
|
|
|
3199 are appropriate for the toolkit in use.
|
|
|
3200
|
|
|
3201
|
|
|
3202 *** Source Code Highlighting
|
|
|
3203 ----------------------------
|
|
|
3204
|
|
|
3205 It's possible to have your buffers "decorated" with fonts or colors
|
|
|
3206 indicating syntactic structures (such as strings, comments, function names,
|
|
|
3207 "reserved words", etc.). In XEmacs, the preferred way to do this is with
|
|
|
3208 font-lock-mode; activate it by adding the following code to your .emacs file:
|
|
|
3209
|
|
|
3210 (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
|
|
|
3211 (add-hook 'c-mode-hook 'turn-on-font-lock)
|
|
|
3212 (add-hook 'c++-mode-hook 'turn-on-font-lock)
|
|
|
3213 (add-hook 'dired-mode-hook 'turn-on-font-lock)
|
|
|
3214 ...etc...
|
|
|
3215
|
|
|
3216 To customize it, see the descriptions of the function `font-lock-mode' and
|
|
|
3217 the variables `font-lock-keywords', `c-font-lock-keywords', etc.
|
|
|
3218
|
|
|
3219 There exist several other source code highlighting packages, but font-lock
|
|
|
3220 does one thing that most others don't do: highlights as you type new text;
|
|
|
3221 and one thing that no others do: bases part of its decoration on the
|
|
|
3222 syntax table of the major mode. Font-lock has C-level support to do this
|
|
|
3223 efficiently, so it should also be significantly faster than the others.
|
|
|
3224
|
|
|
3225 If there's something that another highlighting package does that you can't
|
|
|
3226 make font-lock do, let us know. We would prefer to consolidate all of the
|
|
|
3227 desired functionality into one package rather than ship several different
|
|
|
3228 packages which do essentially the same thing in different ways.
|
|
|
3229
|
|
|
3230
|
|
|
3231 ** Differences Between XEmacs and Emacs 18
|
|
|
3232 ==========================================
|
|
|
3233
|
|
|
3234 Auto-configure support has been added, so it should be fairly easy to compile
|
|
|
3235 XEmacs on different systems. If you have any problems or feedback about
|
|
|
3236 compiling on your system, please let us know.
|
|
|
3237
|
|
|
3238 We have reimplemented the basic input model in a more general way; instead of
|
|
|
3239 X input being a special-case of the normal ASCII input stream, XEmacs has a
|
|
|
3240 concept of "input events", and ASCII characters are a subset of that. The
|
|
|
3241 events that XEmacs knows about are not X events, but are a generalization of
|
|
|
3242 them, so that XEmacs can eventually be ported to different window systems.
|
|
|
3243
|
|
|
3244 We have reimplemented keymaps so that sequences of events can be stored into
|
|
|
3245 them instead of just ASCII codes; it is possible to, for example, bind
|
|
|
3246 different commands to each of the chords Control-h, Control-H, Backspace,
|
|
|
3247 Control-Backspace, and Super-Shift-Backspace. Key bindings, function key
|
|
|
3248 bindings, and mouse bindings live in the same keymaps.
|
|
|
3249
|
|
|
3250 Input and display of all ISO-8859-1 characters is supported.
|
|
|
3251
|
|
|
3252 You can have multiple X windows ("frames" in XEmacs terminology).
|
|
|
3253
|
|
|
3254 XEmacs has objects called "extents" and "faces", which are roughly
|
|
|
3255 analogous to Epoch's "buttons," "zones," and "styles." An extent is a
|
|
|
3256 region of text (a start position and an end position) and a face is a
|
|
|
3257 collection of textual attributes like fonts and colors. Every extent
|
|
|
3258 is displayed in some "face", so changing the properties of a face
|
|
|
3259 immediately updates the display of all associated extents. Faces can
|
|
|
3260 be frame-local: you can have a region of text which displays with
|
|
|
3261 completely different attributes when its buffer is viewed from a
|
|
|
3262 different X window.
|
|
|
3263
|
|
|
3264 The display attributes of faces may be specified either in lisp or through
|
|
|
3265 the X resource manager.
|
|
|
3266
|
|
|
3267 Pixmaps of arbitrary size can be embedded in a buffer.
|
|
|
3268
|
|
|
3269 Variable width fonts work.
|
|
|
3270
|
|
|
3271 The height of a line is the height of the tallest font on that line, instead
|
|
|
3272 of all lines having the same height.
|
|
|
3273
|
|
|
3274 XEmacs uses the MIT "Xt" toolkit instead of raw Xlib calls, which
|
|
|
3275 makes it be a more well-behaved X citizen (and also improves
|
|
|
3276 portability). A result of this is that it is possible to include
|
|
|
3277 other Xt "Widgets" in the XEmacs window. Also, XEmacs understands the
|
|
|
3278 standard Xt command-line arguments.
|
|
|
3279
|
|
|
3280 XEmacs understands the X11 "Selection" mechanism; it's possible to define
|
|
|
3281 and customize selection converter functions and new selection types from
|
|
|
3282 Emacs Lisp, without having to recompile XEmacs.
|
|
|
3283
|
|
|
3284 XEmacs provides support for ToolTalk on systems that have it.
|
|
|
3285
|
|
|
3286 XEmacs supports the Zmacs/Lispm style of region highlighting, where the
|
|
|
3287 region between the point and mark is highlighted when in its "active" state.
|
|
|
3288
|
|
|
3289 XEmacs has a menubar, whose contents are customizable from emacs-lisp.
|
|
|
3290 This menubar looks Motif-ish, but does not require Motif. If you already
|
|
|
3291 own Motif, however, you can configure XEmacs to use a *real* Motif menubar
|
|
|
3292 instead.
|
|
|
3293
|
|
|
3294 XEmacs can ask questions using popup dialog boxes. Any command executed from
|
|
|
3295 a menu will ask yes/no questions with dialog boxes, while commands executed
|
|
|
3296 via the keyboard will use the minibuffer.
|
|
|
3297
|
|
|
3298 XEmacs has vertical and horizontal scrollbars.
|
|
|
3299
|
|
|
3300 The initial load-path is computed at run-time, instead of at compile-time.
|
|
|
3301 This means that if you move the XEmacs executable and associated directories
|
|
|
3302 to somewhere else, you don't have to recompile anything.
|
|
|
3303
|
|
|
3304 You can specify what the title of the XEmacs windows and icons should be
|
|
|
3305 with the variables `frame-title-format' and `frame-icon-title-format',
|
|
|
3306 which have the same syntax as `mode-line-format'.
|
|
|
3307
|
|
|
3308 XEmacs now supports floating-point numbers.
|
|
|
3309
|
|
|
3310 XEmacs now knows about timers directly, instead of them being simulated by
|
|
|
3311 a subprocess.
|
|
|
3312
|
|
|
3313 XEmacs understands truenames, and can be configured to notice when you are
|
|
|
3314 visiting two names of the same file. See the variables find-file-use-truenames
|
|
|
3315 and find-file-compare-truenames.
|
|
|
3316
|
|
|
3317 If you're running on a machine with audio hardware, you can specify sound
|
|
|
3318 files for XEmacs to play instead of the default X beep. See the documentation
|
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|
3319 of the function load-sound-file and the variable sound-alist.
|
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|
3320
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|
3321 An XEmacs frame can be placed within an "external client widget" managed by
|
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|
3322 another application. This allows an application to use an XEmacs frame as its
|
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|
3323 text pane rather than the standard Text widget that is provided with Motif or
|
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|
3324 Athena. XEmacs supports Motif applications, generic Xt (e.g. Athena)
|
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|
3325 applications, and raw Xlib applications.
|
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|
3326
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|
3327 Random changes to the emacs-lisp library: (some of this was not written by
|
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|
3328 us, but is included because it's free software and we think it's good stuff)
|
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|
3329
|
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|
3330 - there is a new optimizing byte-compiler
|
|
|
3331 - there is a new abbrev-based mail-alias mechanism
|
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|
3332 - the -*- line can contain local-variable settings
|
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|
3333 - there is a new TAGS package
|
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|
3334 - there is a new VI-emulation mode (viper)
|
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|
3335 - there is a new implementation of Dired
|
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|
3336 - there is a new implementation of Isearch
|
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|
3337 - the VM package for reading mail is provided
|
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|
3338 - the W3 package for browsing the World Wide Web hypertext information
|
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|
3339 system is provided
|
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|
3340 - the Hyperbole package, a programmable information management and
|
|
|
3341 hypertext system
|
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|
3342 - the OO-Browser package, a multi-language object-oriented browser
|
|
|
3343
|
|
|
3344 There are many more specifics in the "Miscellaneous Changes" section, below.
|
|
|
3345
|
|
|
3346 The online Emacs Manual and Emacs-Lisp Manual are now both relatively
|
|
|
3347 up-to-date.
|
