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428
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1 ;;; font-lock.el --- decorating source files with fonts/colors based on syntax
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2
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3 ;; Copyright (C) 1992-1995, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Amdahl Corporation.
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442
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5 ;; Copyright (C) 1996, 2000 Ben Wing.
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6
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7 ;; Author: Jamie Zawinski <jwz@jwz.org>, for the LISPM Preservation Society.
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8 ;; Minimally merged with FSF 19.34 by Barry Warsaw <bwarsaw@python.org>
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9 ;; Then (partially) synched with FSF 19.30, leading to:
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10 ;; Next Author: RMS
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11 ;; Next Author: Simon Marshall <simon@gnu.ai.mit.edu>
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12 ;; Latest XEmacs Author: Ben Wing
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13 ;; Maintainer: XEmacs Development Team
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14 ;; Keywords: languages, faces
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15
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16 ;; This file is part of XEmacs.
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17
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18 ;; XEmacs is free software; you can redistribute it and/or modify it
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19 ;; under the terms of the GNU General Public License as published by
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20 ;; the Free Software Foundation; either version 2, or (at your option)
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21 ;; any later version.
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22
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23 ;; XEmacs is distributed in the hope that it will be useful, but
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24 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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25 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 ;; General Public License for more details.
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27
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28 ;; You should have received a copy of the GNU General Public License
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29 ;; along with XEmacs; see the file COPYING. If not, write to the
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30 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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31 ;; Boston, MA 02111-1307, USA.
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32
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33 ;;; Synched up with: FSF 19.30 except for the code to initialize the faces.
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34
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35 ;;; Commentary:
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36
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37 ;; Font-lock-mode is a minor mode that causes your comments to be
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38 ;; displayed in one face, strings in another, reserved words in another,
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39 ;; documentation strings in another, and so on.
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40 ;;
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41 ;; Comments will be displayed in `font-lock-comment-face'.
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42 ;; Strings will be displayed in `font-lock-string-face'.
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43 ;; Doc strings will be displayed in `font-lock-doc-string-face'.
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44 ;; Function and variable names (in their defining forms) will be
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45 ;; displayed in `font-lock-function-name-face'.
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46 ;; Reserved words will be displayed in `font-lock-keyword-face'.
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47 ;;
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48 ;; Don't let the name fool you: you can highlight things using different
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49 ;; colors or background stipples instead of fonts, though that is not the
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50 ;; default. See the variables `font-lock-use-colors' and
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51 ;; `font-lock-use-fonts' for broad control over this, or see the
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52 ;; documentation on faces and how to change their attributes for
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53 ;; fine-grained control.
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54 ;;
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55 ;; To make the text you type be fontified, use M-x font-lock-mode. When
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56 ;; this minor mode is on, the fonts of the current line will be updated
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57 ;; with every insertion or deletion.
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58 ;;
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59 ;; By default, font-lock will automatically put newly loaded files
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60 ;; into font-lock-mode if it knows about the file's mode. See the
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61 ;; variables `font-lock-auto-fontify', `font-lock-mode-enable-list',
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62 ;; and `font-lock-mode-disable-list' for control over this.
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63 ;;
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64 ;; The `font-lock-keywords' variable defines other patterns to highlight.
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65 ;; The default font-lock-mode-hook sets it to the value of the variables
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66 ;; lisp-font-lock-keywords, c-font-lock-keywords, etc, as appropriate.
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67 ;; The easiest way to change the highlighting patterns is to change the
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68 ;; values of c-font-lock-keywords and related variables. See the doc
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69 ;; string of the variable `font-lock-keywords' for the appropriate syntax.
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70 ;;
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71 ;; The default value for `lisp-font-lock-keywords' is the value of the variable
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72 ;; `lisp-font-lock-keywords-1'. You may like `lisp-font-lock-keywords-2'
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73 ;; better; it highlights many more words, but is slower and makes your buffers
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74 ;; be very visually noisy.
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75 ;;
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76 ;; The same is true of `c-font-lock-keywords-1' and `c-font-lock-keywords-2';
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77 ;; the former is subdued, the latter is loud.
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78 ;;
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79 ;; You can make font-lock default to the gaudier variety of keyword
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80 ;; highlighting by setting the variable `font-lock-maximum-decoration'
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81 ;; before loading font-lock, or by calling the functions
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82 ;; `font-lock-use-default-maximal-decoration' or
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83 ;; `font-lock-use-default-minimal-decoration'.
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84 ;;
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85 ;; On a Sparc10, the initial fontification takes about 6 seconds for a typical
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86 ;; 140k file of C code, using the default configuration. The actual speed
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87 ;; depends heavily on the type of code in the file, and how many non-syntactic
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88 ;; patterns match; for example, Xlib.h takes 23 seconds for 101k, because many
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89 ;; patterns match in it. You can speed this up substantially by removing some
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90 ;; of the patterns that are highlighted by default. Fontifying lisp code is
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91 ;; significantly faster, because lisp has a more regular syntax than C, so the
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92 ;; regular expressions don't have to be as complicated.
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93 ;;
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94 ;; It's called font-lock-mode here because on the Lispms it was called
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95 ;; "Electric Font Lock Mode." It was called that because there was an older
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96 ;; mode called "Electric Caps Lock Mode" which had the function of causing all
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97 ;; of your source code to be in upper case except for strings and comments,
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98 ;; without you having to blip the caps lock key by hand all the time (thus the
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99 ;; "electric", as in `electric-c-brace'.)
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100
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101 ;; See also the related packages `fast-lock' and `lazy-lock'. Both
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102 ;; attempt to speed up the initial fontification. `fast-lock' saves
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103 ;; the fontification info when you exit Emacs and reloads it next time
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104 ;; you load the file, so that the file doesn't have to be fontified
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105 ;; again. `lazy-lock' does "lazy" fontification -- i.e. it only
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106 ;; fontifies the text as it becomes visible rather than fontifying
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107 ;; the whole file when it's first loaded in.
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108
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109 ;; Further comments from the FSF:
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110
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111 ;; Nasty regexps of the form "bar\\(\\|lo\\)\\|f\\(oo\\|u\\(\\|bar\\)\\)\\|lo"
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112 ;; are made thusly: (regexp-opt '("foo" "fu" "fubar" "bar" "barlo" "lo")) for
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113 ;; efficiency.
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114
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115 ;; What is fontification for? You might say, "It's to make my code look nice."
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116 ;; I think it should be for adding information in the form of cues. These cues
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117 ;; should provide you with enough information to both (a) distinguish between
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118 ;; different items, and (b) identify the item meanings, without having to read
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119 ;; the items and think about it. Therefore, fontification allows you to think
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120 ;; less about, say, the structure of code, and more about, say, why the code
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121 ;; doesn't work. Or maybe it allows you to think less and drift off to sleep.
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122 ;;
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123 ;; So, here are my opinions/advice/guidelines:
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124 ;;
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125 ;; - Use the same face for the same conceptual object, across all modes.
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126 ;; i.e., (b) above, all modes that have items that can be thought of as, say,
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127 ;; keywords, should be highlighted with the same face, etc.
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128 ;; - Keep the faces distinct from each other as far as possible.
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129 ;; i.e., (a) above.
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130 ;; - Make the face attributes fit the concept as far as possible.
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131 ;; i.e., function names might be a bold color such as blue, comments might
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132 ;; be a bright color such as red, character strings might be brown, because,
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133 ;; err, strings are brown (that was not the reason, please believe me).
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134 ;; - Don't use a non-nil OVERRIDE unless you have a good reason.
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135 ;; Only use OVERRIDE for special things that are easy to define, such as the
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136 ;; way `...' quotes are treated in strings and comments in Emacs Lisp mode.
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137 ;; Don't use it to, say, highlight keywords in commented out code or strings.
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138 ;; - Err, that's it.
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139
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140
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141 ;;; Code:
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142
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143 (require 'fontl-hooks)
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144
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145 ;;;;;;;;;;;;;;;;;;;;;; user variables ;;;;;;;;;;;;;;;;;;;;;;
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146
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147 (defgroup font-lock nil
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148 "Decorate source files with fonts/colors based on syntax.
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149 Font-lock-mode is a minor mode that causes your comments to be
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150 displayed in one face, strings in another, reserved words in another,
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151 documentation strings in another, and so on.
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152
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153 Comments will be displayed in `font-lock-comment-face'.
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154 Strings will be displayed in `font-lock-string-face'.
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155 Doc strings will be displayed in `font-lock-doc-string-face'.
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156 Function and variable names (in their defining forms) will be displayed
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157 in `font-lock-function-name-face'.
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158 Reserved words will be displayed in `font-lock-keyword-face'.
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159 Preprocessor conditionals will be displayed in `font-lock-preprocessor-face'."
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160 :group 'languages)
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161
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162 (defgroup font-lock-faces nil
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163 "Faces used by the font-lock package."
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164 :group 'font-lock
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165 :group 'faces)
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166
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167
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168 (defcustom font-lock-verbose t
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169 "*If non-nil, means show status messages when fontifying.
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170 See also `font-lock-message-threshold'."
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171 :type 'boolean
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172 :group 'font-lock)
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173
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174 (defcustom font-lock-message-threshold 6000
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175 "*Minimum size of region being fontified for status messages to appear.
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176
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177 The size is measured in characters. This affects `font-lock-fontify-region'
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178 but not `font-lock-fontify-buffer'. (In other words, when you first visit
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179 a file and it gets fontified, you will see status messages no matter what
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180 size the file is. However, if you do something else like paste a
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181 chunk of text, you will see status messages only if the changed region is
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182 large enough.)
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183
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184 Note that setting `font-lock-verbose' to nil disables the status
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185 messages entirely."
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186 :type 'integer
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187 :group 'font-lock)
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188
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189 ;;;###autoload
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190 (defcustom font-lock-auto-fontify t
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191 "*Whether font-lock should automatically fontify files as they're loaded.
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192 This will only happen if font-lock has fontifying keywords for the major
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193 mode of the file. You can get finer-grained control over auto-fontification
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194 by using this variable in combination with `font-lock-mode-enable-list' or
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195 `font-lock-mode-disable-list'."
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196 :type 'boolean
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197 :group 'font-lock)
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198
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199 ;;;###autoload
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200 (defcustom font-lock-mode-enable-list nil
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201 "*List of modes to auto-fontify, if `font-lock-auto-fontify' is nil."
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202 :type '(repeat (symbol :tag "Mode"))
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203 :group 'font-lock)
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204
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205 ;;;###autoload
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206 (defcustom font-lock-mode-disable-list nil
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207 "*List of modes not to auto-fontify, if `font-lock-auto-fontify' is t."
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208 :type '(repeat (symbol :tag "Mode"))
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209 :group 'font-lock)
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210
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211 ;;;###autoload
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212 (defcustom font-lock-use-colors '(color)
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213 "*Specification for when Font Lock will set up color defaults.
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214 Normally this should be '(color), meaning that Font Lock will set up
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215 color defaults that are only used on color displays. Set this to nil
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216 if you don't want Font Lock to set up color defaults at all. This
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217 should be one of
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218
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219 -- a list of valid tags, meaning that the color defaults will be used
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220 when all of the tags apply. (e.g. '(color x))
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221 -- a list whose first element is 'or and whose remaining elements are
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222 lists of valid tags, meaning that the defaults will be used when
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223 any of the tag lists apply.
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224 -- nil, meaning that the defaults should not be set up at all.
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225
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226 \(If you specify face values in your init file, they will override any
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227 that Font Lock specifies, regardless of whether you specify the face
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228 values before or after loading Font Lock.)
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229
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230 See also `font-lock-use-fonts'. If you want more control over the faces
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231 used for fontification, see the documentation of `font-lock-mode' for
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232 how to do it."
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233 ;; Hard to do right.
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234 :type 'sexp
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235 :group 'font-lock)
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236
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237 ;;;###autoload
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238 (defcustom font-lock-use-fonts '(or (mono) (grayscale))
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239 "*Specification for when Font Lock will set up non-color defaults.
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240
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241 Normally this should be '(or (mono) (grayscale)), meaning that Font
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242 Lock will set up non-color defaults that are only used on either mono
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243 or grayscale displays. Set this to nil if you don't want Font Lock to
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244 set up non-color defaults at all. This should be one of
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245
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246 -- a list of valid tags, meaning that the non-color defaults will be used
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247 when all of the tags apply. (e.g. '(grayscale x))
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248 -- a list whose first element is 'or and whose remaining elements are
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249 lists of valid tags, meaning that the defaults will be used when
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250 any of the tag lists apply.
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251 -- nil, meaning that the defaults should not be set up at all.
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252
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253 \(If you specify face values in your init file, they will override any
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254 that Font Lock specifies, regardless of whether you specify the face
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255 values before or after loading Font Lock.)
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256
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257 See also `font-lock-use-colors'. If you want more control over the faces
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258 used for fontification, see the documentation of `font-lock-mode' for
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259 how to do it."
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260 :type 'sexp
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261 :group 'font-lock)
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262
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263 ;;;###autoload
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264 (defcustom font-lock-maximum-decoration t
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265 "*If non-nil, the maximum decoration level for fontifying.
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266 If nil, use the minimum decoration (equivalent to level 0).
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267 If t, use the maximum decoration available.
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268 If a number, use that level of decoration (or if not available the maximum).
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269 If a list, each element should be a cons pair of the form (MAJOR-MODE . LEVEL),
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270 where MAJOR-MODE is a symbol or t (meaning the default). For example:
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271 ((c++-mode . 2) (c-mode . t) (t . 1))
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272 means use level 2 decoration for buffers in `c++-mode', the maximum decoration
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273 available for buffers in `c-mode', and level 1 decoration otherwise."
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274 :type '(choice (const :tag "default" nil)
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275 (const :tag "maximum" t)
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276 (integer :tag "level" 1)
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277 (repeat :menu-tag "mode specific" :tag "mode specific"
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278 :value ((t . t))
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279 (cons :tag "Instance"
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280 (radio :tag "Mode"
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281 (const :tag "all" t)
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282 (symbol :tag "name"))
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283 (radio :tag "Decoration"
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284 (const :tag "default" nil)
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285 (const :tag "maximum" t)
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286 (integer :tag "level" 1)))))
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287 :group 'font-lock)
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288
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289 ;;;###autoload
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290 (define-obsolete-variable-alias 'font-lock-use-maximal-decoration
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291 'font-lock-maximum-decoration)
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292
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293 ;;;###autoload
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294 (defcustom font-lock-maximum-size (* 250 1024)
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295 "*If non-nil, the maximum size for buffers for fontifying.
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296 Only buffers less than this can be fontified when Font Lock mode is turned on.
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297 If nil, means size is irrelevant.
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298 If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
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299 where MAJOR-MODE is a symbol or t (meaning the default). For example:
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300 ((c++-mode . 256000) (c-mode . 256000) (rmail-mode . 1048576))
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301 means that the maximum size is 250K for buffers in `c++-mode' or `c-mode', one
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302 megabyte for buffers in `rmail-mode', and size is irrelevant otherwise."
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303 :type '(choice (const :tag "none" nil)
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304 (integer :tag "size")
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305 (repeat :menu-tag "mode specific" :tag "mode specific"
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306 :value ((t . nil))
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307 (cons :tag "Instance"
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308 (radio :tag "Mode"
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309 (const :tag "all" t)
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310 (symbol :tag "name"))
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311 (radio :tag "Size"
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312 (const :tag "none" nil)
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313 (integer :tag "size")))))
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314 :group 'font-lock)
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315
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460
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316 ;;;###autoload
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317 (defcustom font-lock-fontify-string-delimiters nil
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318 "*If non-nil, apply font-lock-string-face to string delimiters as well as
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319 string text when fontifying."
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320 :type 'boolean
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321 :group 'font-lock)
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428
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322
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323 ;; Fontification variables:
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324
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325 ;;;###autoload
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326 (defvar font-lock-keywords nil
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442
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327 "A list defining the keywords for `font-lock-mode' to highlight.
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328
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329 FONT-LOCK-KEYWORDS := List of FONT-LOCK-FORM's.
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330
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331 FONT-LOCK-FORM :== MATCHER
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332 | (MATCHER . MATCH)
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333 | (MATCHER . FACE-FORM)
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334 | (MATCHER . HIGHLIGHT)
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335 | (MATCHER HIGHLIGHT ...)
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336 | (eval . FORM)
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337
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338 MATCHER :== A string containing a regexp.
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339 | A variable containing a regexp to search for.
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340 | A function to call to make the search.
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341 It is called with one arg, the limit of the search,
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342 and should leave MATCH results in the XEmacs global
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343 match data.
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344
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345 MATCH :== An integer match subexpression number from MATCHER.
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346
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347 FACE-FORM :== The symbol naming a defined face.
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348 | Expression whos value is the face name to use. If you
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349 want FACE-FORM to be a symbol that evaluates to a face,
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350 use a form like \"(progn sym)\".
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351
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352 HIGHLIGHT :== MATCH-HIGHLIGHT
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353 | MATCH-ANCHORED
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354
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355 FORM :== Expression returning a FONT-LOCK-FORM, evaluated when
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356 the FONT-LOCK-FORM is first used in a buffer. This
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357 feature can be used to provide a FONT-LOCK-FORM that
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358 can only be generated when Font Lock mode is actually
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359 turned on.
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360
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361 MATCH-HIGHLIGHT :== (MATCH FACE-FORM OVERRIDE LAXMATCH)
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362
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363 OVERRIDE :== t - overwrite existing fontification
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364 | 'keep - only parts not already fontified are
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365 highlighted.
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366 | 'prepend - merge faces, this fontification has
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367 precedence over existing
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368 | 'append - merge faces, existing fontification has
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369 precedence over
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370 this face.
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371
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372 LAXMATCH :== If non-nil, no error is signalled if there is no MATCH
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373 in MATCHER.
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374
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375 MATCH-ANCHORED :== (ANCHOR-MATCHER PRE-MATCH-FORM \\
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376 POST-MATCH-FORM MATCH-HIGHLIGHT ...)
|
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428
|
377
|
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442
|
378 ANCHOR-MATCHER :== Like a MATCHER, except that the limit of the search
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379 defaults to the end of the line after PRE-MATCH-FORM
|
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380 is evaluated. However, if PRE-MATCH-FORM returns a
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381 position greater than the end of the line, that
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382 position is used as the limit of the search. It is
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383 generally a bad idea to return a position greater than
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384 the end of the line, i.e., cause the ANCHOR-MATCHER
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385 search to span lines.
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386
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387 PRE-MATCH-FORM :== Evaluated before the ANCHOR-MATCHER is used, therefore
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388 can be used to initialize before, ANCHOR-MATCHER is
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389 used. Typically, PRE-MATCH-FORM is used to move to
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390 some position relative to the original MATCHER, before
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391 starting with the ANCHOR-MATCHER.
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392
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393 POST-MATCH-FORM :== Like PRE-MATCH-FORM, but used to clean up after the
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394 ANCHOR-MATCHER. It might be used to move, before
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395 resuming with MATCH-ANCHORED's parent's MATCHER.
|
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396
|
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397 For example, an element of the first form highlights (if not already highlighted):
|
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|
398
|
|
444
|
399 \"\\\\\\=<foo\\\\\\=>\" Discrete occurrences of \"foo\" in the value
|
|
442
|
400 of the variable `font-lock-keyword-face'.
|
|
428
|
401
|
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442
|
402 (\"fu\\\\(bar\\\\)\" . 1) Substring \"bar\" within all occurrences of
|
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|
403 \"fubar\" in the value of
|
|
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404 `font-lock-keyword-face'.
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405
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406 (\"fubar\" . fubar-face) Occurrences of \"fubar\" in the value of
|
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|
407 `fubar-face'.
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408
|
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|
409 (\"foo\\\\|bar\" 0 foo-bar-face t) Occurrences of either \"foo\" or \"bar\" in the
|
|
|
410 value of `foo-bar-face', even if already
|
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|
411 highlighted.
|
|
428
|
412
|
|
442
|
413 (fubar-match 1 fubar-face) The first subexpression within all
|
|
|
414 occurrences of whatever the function
|
|
|
415 `fubar-match' finds and matches in the value
|
|
|
416 of `fubar-face'.
|
|
|
417
|
|
444
|
418 (\"\\\\\\=<anchor\\\\\\=>\" (0 anchor-face) (\"\\\\\\=<item\\\\\\=>\" nil nil (0 item-face)))
|
|
442
|
419 -------------- --------------- ------------ --- --- -------------
|
|
|
420 | | | | | |
|
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|
421 MATCHER | ANCHOR-MATCHER | +------+ MATCH-HIGHLIGHT
|
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|
422 MATCH-HIGHLIGHT PRE-MATCH-FORM |
|
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|
423 POST-MATCH-FORM
|
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|
424
|
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|
425 Discrete occurrences of \"anchor\" in the value of `anchor-face', and
|
|
|
426 subsequent discrete occurrences of \"item\" (on the same line) in the value
|
|
|
427 of `item-face'. (Here PRE-MATCH-FORM and POST-MATCH-FORM are nil.
|
|
|
428 Therefore \"item\" is initially searched for starting from the end of the
|
|
|
429 match of \"anchor\", and searching for subsequent instance of \"anchor\"
|
|
|
430 resumes from where searching for \"item\" concluded.)
|
|
428
|
431
|
|
|
432 For highlighting single items, typically only MATCH-HIGHLIGHT is required.
|
|
442
|
433 However, if an item or (typically) several items are to be highlighted
|
|
|
434 following the instance of another item (the anchor) then MATCH-ANCHORED may be
|
|
|
435 required.
|
|
428
|
436
|
|
|
437 These regular expressions should not match text which spans lines. While
|
|
442
|
438 \\[font-lock-fontify-buffer] handles multi-line patterns correctly, updating when you
|
|
|
439 edit the buffer does not, since it considers text one line at a time.
|
|
428
|
440
|
|
442
|
441 Be very careful composing regexps for this list; the wrong pattern can
|
|
|
442 dramatically slow things down!
|
|
|
443 ")
|
|
428
|
444 ;;;###autoload
|
|
|
445 (make-variable-buffer-local 'font-lock-keywords)
|
|
|
446
|
|
460
|
447 ;;;###autoload
|
|
|
448 (defvar font-lock-syntactic-keywords nil
|
|
|
449 "A list of the syntactic keywords to highlight.
|
|
|
450 Can be the list or the name of a function or variable whose value is the list.
|
|
|
451 See `font-lock-keywords' for a description of the form of this list;
|
|
|
452 the differences are listed below. MATCH-HIGHLIGHT should be of the form:
|
|
|
453
|
|
|
454 (MATCH SYNTAX OVERRIDE LAXMATCH)
|
|
|
455
|
|
|
456 where SYNTAX can be of the form (SYNTAX-CODE . MATCHING-CHAR), the name of a
|
|
|
457 syntax table, or an expression whose value is such a form or a syntax table.
|
|
|
458 OVERRIDE cannot be `prepend' or `append'.
|
|
|
459
|
|
|
460 For example, an element of the form highlights syntactically:
|
|
|
461
|
|
|
462 (\"\\\\$\\\\(#\\\\)\" 1 (1 . nil))
|
|
|
463
|
|
|
464 a hash character when following a dollar character, with a SYNTAX-CODE of
|
|
|
465 1 (meaning punctuation syntax). Assuming that the buffer syntax table does
|
|
|
466 specify hash characters to have comment start syntax, the element will only
|
|
|
467 highlight hash characters that do not follow dollar characters as comments
|
|
|
468 syntactically.
|
|
|
469
|
|
|
470 (\"\\\\('\\\\).\\\\('\\\\)\"
|
|
|
471 (1 (7 . ?'))
|
|
|
472 (2 (7 . ?')))
|
|
|
473
|
|
|
474 both single quotes which surround a single character, with a SYNTAX-CODE of
|
|
|
475 7 (meaning string quote syntax) and a MATCHING-CHAR of a single quote (meaning
|
|
|
476 a single quote matches a single quote). Assuming that the buffer syntax table
|
|
|
477 does not specify single quotes to have quote syntax, the element will only
|
|
|
478 highlight single quotes of the form 'c' as strings syntactically.
|
|
|
479 Other forms, such as foo'bar or 'fubar', will not be highlighted as strings.
|
|
|
480
|
|
|
481 This is normally set via `font-lock-defaults'."
|
|
|
482 )
|
|
|
483 ;;;###autoload
|
|
|
484 (make-variable-buffer-local 'font-lock-syntactic-keywords)
|
|
|
485
|
|
428
|
486 (defvar font-lock-defaults nil
|
|
|
487 "The defaults font Font Lock mode for the current buffer.
|
|
|
488 Normally, do not set this directly. If you are writing a major mode,
|
|
|
489 put a property of `font-lock-defaults' on the major-mode symbol with
|
|
|
490 the desired value.
|
|
|
491
|
|
|
492 It should be a list
|
|
|
493
|
|
|
494 \(KEYWORDS KEYWORDS-ONLY CASE-FOLD SYNTAX-ALIST SYNTAX-BEGIN)
|
|
|
495
|
|
|
496 KEYWORDS may be a symbol (a variable or function whose value is the keywords
|
|
|
497 to use for fontification) or a list of symbols. If KEYWORDS-ONLY is non-nil,
|
|
|
498 syntactic fontification (strings and comments) is not performed. If CASE-FOLD
|
|
|
499 is non-nil, the case of the keywords is ignored when fontifying. If
|
|
|
500 SYNTAX-ALIST is non-nil, it should be a list of cons pairs of the form (CHAR
|
|
|
501 . STRING) used to set the local Font Lock syntax table, for keyword and
|
|
|
502 syntactic fontification (see `modify-syntax-entry').
|
|
|
503
|
|
|
504 If SYNTAX-BEGIN is non-nil, it should be a function with no args used to move
|
|
|
505 backwards outside any enclosing syntactic block, for syntactic fontification.
|
|
|
506 Typical values are `beginning-of-line' (i.e., the start of the line is known to
|
|
|
507 be outside a syntactic block), or `beginning-of-defun' for programming modes or
|
|
|
508 `backward-paragraph' for textual modes (i.e., the mode-dependent function is
|
|
|
509 known to move outside a syntactic block). If nil, the beginning of the buffer
|
|
|
510 is used as a position outside of a syntactic block, in the worst case.
|
|
|
511
|
|
|
512 These item elements are used by Font Lock mode to set the variables
|
|
|
513 `font-lock-keywords', `font-lock-keywords-only',
|
|
|
514 `font-lock-keywords-case-fold-search', `font-lock-syntax-table' and
|
|
|
515 `font-lock-beginning-of-syntax-function', respectively.
|
|
|
516
|
|
|
517 Alternatively, if the value is a symbol, it should name a major mode,
|
|
|
518 and the defaults for that mode will apply.")
|
|
|
519 (make-variable-buffer-local 'font-lock-defaults)
|
|
|
520
|
|
|
521 ;; FSF uses `font-lock-defaults-alist' and expects the major mode to
|
|
|
522 ;; set a value for `font-lock-defaults', but I don't like either of
|
|
|
523 ;; these -- requiring the mode to set `font-lock-defaults' makes it
|
|
|
524 ;; impossible to have defaults for a minor mode, and using an alist is
|
|
|
525 ;; generally a bad idea for information that really should be
|
|
|
526 ;; decentralized. (Who knows what strange modes might want
|
|
|
527 ;; font-locking?)
|
|
|
528
|
|
|
529 (defvar font-lock-keywords-only nil
|
|
|
530 "Non-nil means Font Lock should not do syntactic fontification.
|
|
|
531 This is normally set via `font-lock-defaults'.
|
|
|
532
|
|
|
533 This should be nil for all ``language'' modes, but other modes, like
|
|
|
534 dired, do not have anything useful in the syntax tables (no comment
|
|
|
535 or string delimiters, etc) and so there is no need to use them and
|
|
|
536 this variable should have a value of t.
|
|
|
537
|
|
|
538 You should not set this variable directly; its value is computed
|
|
|
539 from `font-lock-defaults', or (if that does not specify anything)
|
|
|
540 by examining the syntax table to see whether it appears to contain
|
|
|
541 anything useful.")
|
|
|
542 (make-variable-buffer-local 'font-lock-keywords-only)
|
|
|
543
|
|
|
544 (defvar font-lock-keywords-case-fold-search nil
|
|
|
545 "Whether the strings in `font-lock-keywords' should be case-folded.
|
|
|
546 This variable is automatically buffer-local, as the correct value depends
|
|
|
547 on the language in use.")
|
|
|
548 (make-variable-buffer-local 'font-lock-keywords-case-fold-search)
|
|
|
549
|
|
|
550 (defvar font-lock-after-fontify-buffer-hook nil
|
|
|
551 "Function or functions to run after completion of font-lock-fontify-buffer.")
|
|
|
552
|
|
|
553 (defvar font-lock-syntax-table nil
|
|
|
554 "Non-nil means use this syntax table for fontifying.
|
|
|
555 If this is nil, the major mode's syntax table is used.
|
|
|
556 This is normally set via `font-lock-defaults'.")
|
|
|
557 (make-variable-buffer-local 'font-lock-syntax-table)
|
|
|
558
|
|
460
|
559 ;; These record the parse state at a particular position, always the start of a
|
|
|
560 ;; line. Used to make `font-lock-fontify-syntactically-region' faster.
|
|
|
561 ;; Previously, `font-lock-cache-position' was just a buffer position. However,
|
|
|
562 ;; under certain situations, this occasionally resulted in mis-fontification.
|
|
|
563 ;; I think the "situations" were deletion with Lazy Lock mode's deferral. sm.
|
|
|
564 (defvar font-lock-cache-state nil)
|
|
|
565 (defvar font-lock-cache-position nil)
|
|
|
566 (make-variable-buffer-local 'font-lock-cache-state)
|
|
|
567 (make-variable-buffer-local 'font-lock-cache-position)
|
|
428
|
568
|
|
|
569 ;; If this is nil, we only use the beginning of the buffer if we can't use
|
|
|
570 ;; `font-lock-cache-position' and `font-lock-cache-state'.
|
|
|
571 (defvar font-lock-beginning-of-syntax-function nil
|
|
|
572 "Non-nil means use this function to move back outside of a syntactic block.
|
|
|
573 If this is nil, the beginning of the buffer is used (in the worst case).
|
|
|
574 This is normally set via `font-lock-defaults'.")
|
|
|
575 (make-variable-buffer-local 'font-lock-beginning-of-syntax-function)
|
|
|
576
|
|
|
577 (defvar font-lock-fontify-buffer-function 'font-lock-default-fontify-buffer
|
|
|
578 "Function to use for fontifying the buffer.
|
|
|
579 This is normally set via `font-lock-defaults'.")
|
|
|
580
|
|
|
581 (defvar font-lock-unfontify-buffer-function 'font-lock-default-unfontify-buffer
|
|
|
582 "Function to use for unfontifying the buffer.
|
|
|
583 This is used when turning off Font Lock mode.
|
|
|
584 This is normally set via `font-lock-defaults'.")
|
|
|
585
|
|
|
586 (defvar font-lock-fontify-region-function 'font-lock-default-fontify-region
|
|
|
587 "Function to use for fontifying a region.
|
|
|
588 It should take two args, the beginning and end of the region, and an optional
|
|
|
589 third arg VERBOSE. If non-nil, the function should print status messages.
|
|
|
590 This is normally set via `font-lock-defaults'.")
|
|
|
591
|
|
|
592 (defvar font-lock-unfontify-region-function 'font-lock-default-unfontify-region
|
|
|
593 "Function to use for unfontifying a region.
|
|
|
594 It should take two args, the beginning and end of the region.
|
|
|
595 This is normally set via `font-lock-defaults'.")
|
|
|
596
|
|
|
597 (defvar font-lock-inhibit-thing-lock nil
|
|
|
598 "List of Font Lock mode related modes that should not be turned on.
|
|
|
599 Currently, valid mode names as `fast-lock-mode' and `lazy-lock-mode'.
|
|
|
600 This is normally set via `font-lock-defaults'.")
|
|
|
601
|
|
|
602 ;;;###autoload
|
|
|
603 (defcustom font-lock-mode nil ;; customized for the option menu. dverna
|
|
|
604 "Non nil means `font-lock-mode' is on"
|
|
|
605 :group 'font-lock
|
|
|
606 :type 'boolean
|
|
|
607 :initialize 'custom-initialize-default
|
|
|
608 :require 'font-lock
|
|
|
609 :set #'(lambda (var val) (font-lock-mode (or val 0)))
|
|
|
610 )
|
|
|
611
|
|
|
612 (defvar font-lock-fontified nil) ; whether we have hacked this buffer
|
|
|
613 (put 'font-lock-fontified 'permanent-local t)
|
|
|
614
|
|
|
615 ;;;###autoload
|
|
|
616 (defvar font-lock-mode-hook nil
|
|
|
617 "Function or functions to run on entry to font-lock-mode.")
|
|
|
618
|
|
|
619 ; whether font-lock-set-defaults has already been run.
|
|
|
620 (defvar font-lock-defaults-computed nil)
|
|
|
621 (make-variable-buffer-local 'font-lock-defaults-computed)
|
|
|
622
|
|
|
623
|
|
|
624 ;;; Initialization of faces.
|
|
|
625
|
|
|
626 ;; #### barf gag retch. Horrid FSF lossage that we need to
|
|
|
627 ;; keep around for compatibility with font-lock-keywords that
|
|
442
|
628 ;; forget to properly quote their faces. I tried just let-binding
|
|
|
629 ;; them when we eval the face expression, but that failes because
|
|
|
630 ;; some files actually use the variables directly in their init code
|
|
|
631 ;; without quoting them. --ben
|
|
428
|
632 (defvar font-lock-comment-face 'font-lock-comment-face
|
|
442
|
633 "This variable should not be set.
|
|
|
634 It is present only for horrid FSF compatibility reasons.
|
|
|
635 The corresponding face should be set using `edit-faces' or the
|
|
|
636 `set-face-*' functions.")
|
|
428
|
637 (defvar font-lock-doc-string-face 'font-lock-doc-string-face
|
|
442
|
638 "This variable should not be set.
|
|
|
639 It is present only for horrid FSF compatibility reasons.
|
|
|
640 The corresponding face should be set using `edit-faces' or the
|
|
|
641 `set-face-*' functions.")
|
|
428
|
642 (defvar font-lock-string-face 'font-lock-string-face
|
|
442
|
643 "This variable should not be set.
|
|
|
644 It is present only for horrid FSF compatibility reasons.
|
|
|
645 The corresponding face should be set using `edit-faces' or the
|
|
|
646 `set-face-*' functions.")
|
|
428
|
647 (defvar font-lock-keyword-face 'font-lock-keyword-face
|
|
442
|
648 "This variable should not be set.
|
|
|
649 It is present only for horrid FSF compatibility reasons.
|
|
|
650 The corresponding face should be set using `edit-faces' or the
|
|
|
651 `set-face-*' functions.")
|
|
428
|
652 (defvar font-lock-function-name-face 'font-lock-function-name-face
|
|
442
|
653 "This variable should not be set.
|
|
|
654 It is present only for horrid FSF compatibility reasons.
|
|
|
655 The corresponding face should be set using `edit-faces' or the
|
|
|
656 `set-face-*' functions.")
|
|
428
|
657 (defvar font-lock-variable-name-face 'font-lock-variable-name-face
|
|
442
|
658 "This variable should not be set.
|
|
|
659 It is present only for horrid FSF compatibility reasons.
|
|
|
660 The corresponding face should be set using `edit-faces' or the
|
|
|
661 `set-face-*' functions.")
|
|
428
|
662 (defvar font-lock-type-face 'font-lock-type-face
|
|
442
|
663 "This variable should not be set.
|
|
|
664 It is present only for horrid FSF compatibility reasons.
|
|
|
665 The corresponding face should be set using `edit-faces' or the
|
|
|
666 `set-face-*' functions.")
|
|
428
|
667 (defvar font-lock-reference-face 'font-lock-reference-face
|
|
442
|
668 "This variable should not be set.
|
|
|
669 It is present only for horrid FSF compatibility reasons.
|
|
|
670 The corresponding face should be set using `edit-faces' or the
|
|
|
671 `set-face-*' functions.")
|
|
428
|
672 (defvar font-lock-preprocessor-face 'font-lock-preprocessor-face
|
|
442
|
673 "This variable should not be set.
|
|
|
674 It is present only for horrid FSF compatibility reasons.
|
|
|
675 The corresponding face should be set using `edit-faces' or the
|
|
|
676 `set-face-*' functions.")
|
|
428
|
677
|
|
|
678 (defconst font-lock-face-list
|
|
|
679 '(font-lock-comment-face
|
|
|
680 font-lock-string-face
|
|
|
681 font-lock-doc-string-face
|
|
|
682 font-lock-keyword-face
|
|
|
683 font-lock-function-name-face
|
|
|
684 font-lock-variable-name-face
|
|
|
685 font-lock-type-face
|
|
|
686 font-lock-reference-face
|
|
|
687 font-lock-preprocessor-face
|
|
|
688 font-lock-warning-face))
|
|
|
689
|
|
|
690 (defface font-lock-comment-face
|
|
|
691 '((((class color) (background dark)) (:foreground "gray80"))
|
|
442
|
692 ;; blue4 is hardly different from black on windows.
|
|
|
693 (((class color) (background light) (type mswindows)) (:foreground "blue"))
|
|
428
|
694 (((class color) (background light)) (:foreground "blue4"))
|
|
|
695 (((class grayscale) (background light))
|
|
|
696 (:foreground "DimGray" :bold t :italic t))
|
|
|
697 (((class grayscale) (background dark))
|
|
|
698 (:foreground "LightGray" :bold t :italic t))
|
|
|
699 (t (:bold t)))
|
|
|
700 "Font Lock mode face used to highlight comments."
|
|
|
701 :group 'font-lock-faces)
|
|
|
702
|
|
|
703 (defface font-lock-string-face
|
|
|
704 '((((class color) (background dark)) (:foreground "tan"))
|
|
|
705 (((class color) (background light)) (:foreground "green4"))
|
|
|
706 (((class grayscale) (background light)) (:foreground "DimGray" :italic t))
|
|
|
707 (((class grayscale) (background dark)) (:foreground "LightGray" :italic t))
|
|
|
708 (t (:bold t)))
|
|
|
709 "Font Lock mode face used to highlight strings."
|
|
|
710 :group 'font-lock-faces)
|
|
|
711
|
|
|
712 (defface font-lock-doc-string-face
|
|
|
713 '((((class color) (background dark)) (:foreground "light coral"))
|
|
|
714 (((class color) (background light)) (:foreground "green4"))
|
|
|
715 (t (:bold t)))
|
|
432
|
716 "Font Lock mode face used to highlight documentation strings.
|
|
|
717 This is currently supported only in Lisp-like modes, which are those
|
|
|
718 with \"lisp\" or \"scheme\" in their name. You can explicitly make
|
|
|
719 a mode Lisp-like by putting a non-nil `font-lock-lisp-like' property
|
|
|
720 on the major mode's symbol."
|
|
428
|
721 :group 'font-lock-faces)
|
|
|
722
|
|
|
723 (defface font-lock-keyword-face
|
|
|
724 '((((class color) (background dark)) (:foreground "cyan"))
|
|
442
|
725 ;; red4 is hardly different from black on windows.
|
|
|
726 (((class color) (background light) (type mswindows)) (:foreground "red"))
|
|
428
|
727 (((class color) (background light)) (:foreground "red4"))
|
|
|
728 (((class grayscale) (background light)) (:foreground "LightGray" :bold t))
|
|
|
729 (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
|
|
|
730 (t (:bold t)))
|
|
|
731 "Font Lock mode face used to highlight keywords."
|
|
|
732 :group 'font-lock-faces)
|
|
|
733
|
|
|
734 (defface font-lock-function-name-face
|
|
|
735 '((((class color) (background dark)) (:foreground "aquamarine"))
|
|
442
|
736 ;; brown4 is hardly different from black on windows.
|
|
|
737 ;; I changed it to red because IMO it's pointless and ugly to
|
|
|
738 ;; use a million slightly different colors for niggly syntactic
|
|
|
739 ;; differences. --ben
|
|
|
740 (((class color) (background light) (type mswindows)) (:foreground "red"))
|
|
428
|
741 (((class color) (background light)) (:foreground "brown4"))
|
|
|
742 (t (:bold t :underline t)))
|
|
|
743 "Font Lock mode face used to highlight function names."
|
|
|
744 :group 'font-lock-faces)
|
|
|
745
|
|
|
746 (defface font-lock-variable-name-face
|
|
|
747 '((((class color) (background dark)) (:foreground "cyan3"))
|
|
|
748 (((class color) (background light)) (:foreground "magenta4"))
|
|
|
749 (((class grayscale) (background light))
|
|
|
750 (:foreground "Gray90" :bold t :italic t))
|
|
|
751 (((class grayscale) (background dark))
|
|
|
752 (:foreground "DimGray" :bold t :italic t))
|
|
|
753 (t (:underline t)))
|
|
|
754 "Font Lock mode face used to highlight variable names."
|
|
|
755 :group 'font-lock-faces)
|
|
|
756
|
|
|
757 (defface font-lock-type-face
|
|
|
758 '((((class color) (background dark)) (:foreground "wheat"))
|
|
|
759 (((class color) (background light)) (:foreground "steelblue"))
|
|
|
760 (((class grayscale) (background light)) (:foreground "Gray90" :bold t))
|
|
|
761 (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
|
|
|
762 (t (:bold t)))
|
|
|
763 "Font Lock mode face used to highlight types."
|
|
|
764 :group 'font-lock-faces)
|
|
|
765
|
|
|
766 (defface font-lock-reference-face
|
|
|
767 '((((class color) (background dark)) (:foreground "cadetblue2"))
|
|
|
768 (((class color) (background light)) (:foreground "red3"))
|
|
|
769 (((class grayscale) (background light))
|
|
|
770 (:foreground "LightGray" :bold t :underline t))
|
|
|
771 (((class grayscale) (background dark))
|
|
|
772 (:foreground "Gray50" :bold t :underline t)))
|
|
|
773 "Font Lock mode face used to highlight references."
|
|
|
774 :group 'font-lock-faces)
|
|
|
775
|
|
|
776 ;; #### FSF has font-lock-builtin-face.
|
|
|
777
|
|
|
778 (defface font-lock-preprocessor-face
|
|
|
779 '((((class color) (background dark)) (:foreground "steelblue1"))
|
|
|
780 (((class color) (background light)) (:foreground "blue3"))
|
|
|
781 (t (:underline t)))
|
|
|
782 "Font Lock Mode face used to highlight preprocessor conditionals."
|
|
|
783 :group 'font-lock-faces)
|
|
|
784
|
|
|
785 ;; #### Currently unused
|
|
|
786 (defface font-lock-warning-face
|
|
|
787 '((((class color) (background light)) (:foreground "Red" :bold t))
|
|
|
788 (((class color) (background dark)) (:foreground "Pink" :bold t))
|
|
|
789 (t (:inverse-video t :bold t)))
|
|
|
790 "Font Lock mode face used to highlight warnings."
|
|
|
791 :group 'font-lock-faces)
|
|
|
792
|
|
|
793 (defun font-lock-recompute-variables ()
|
|
|
794 ;; Is this a Draconian thing to do?
|
|
|
795 (mapc #'(lambda (buffer)
|
|
|
796 (with-current-buffer buffer
|
|
|
797 (font-lock-mode 0)
|
|
|
798 (font-lock-set-defaults t)))
|
|
|
799 (buffer-list)))
|
|
|
800
|
|
|
801 ;; Backwards-compatible crud.
|
|
|
802
|
|
|
803 (defun font-lock-reset-all-faces ()
|
|
|
804 (dolist (face font-lock-face-list)
|
|
|
805 (face-spec-set face (get face 'face-defface-spec))))
|
|
|
806
|
|
|
807 (defun font-lock-use-default-fonts ()
|
|
|
808 "Reset the font-lock faces to a default set of fonts."
|
|
|
809 (interactive)
|
|
|
810 ;; #### !!!!
|
|
|
811 (font-lock-reset-all-faces))
|
|
|
812
|
|
|
813 (defun font-lock-use-default-colors ()
|
|
|
814 "Reset the font-lock faces to a default set of colors."
|
|
|
815 (interactive)
|
|
|
816 ;; #### !!!!
|
|
|
817 (font-lock-reset-all-faces))
|
|
|
818
|
|
|
819 (defun font-lock-use-default-minimal-decoration ()
|
|
|
820 "Reset the font-lock patterns to a fast, minimal set of decorations."
|
|
|
821 (and font-lock-maximum-decoration
|
|
|
822 (setq font-lock-maximum-decoration nil)
|
|
|
823 (font-lock-recompute-variables)))
|
|
|
824
|
|
|
825 (defun font-lock-use-default-maximal-decoration ()
|
|
|
826 "Reset the font-lock patterns to a larger set of decorations."
|
|
|
827 (and (not (eq t font-lock-maximum-decoration))
|
|
|
828 (setq font-lock-maximum-decoration t)
|
|
|
829 (font-lock-recompute-variables)))
|
|
|
830
|
|
|
831
|
|
|
832 ;;;;;;;;;;;;;;;;;;;;;; actual code ;;;;;;;;;;;;;;;;;;;;;;
|
|
|
833
|
|
|
834 ;;; To fontify the whole buffer by language syntax, we go through it a
|
|
|
835 ;;; character at a time, creating extents on the boundary of each syntactic
|
|
|
836 ;;; unit (that is, one extent for each block comment, one for each line
|
|
|
837 ;;; comment, one for each string, etc.) This is done with the C function
|
|
|
838 ;;; syntactically-sectionize. It's in C for speed (the speed of lisp function
|
|
|
839 ;;; calls was a real bottleneck for this task since it involves examining each
|
|
|
840 ;;; character in turn.)
|
|
|
841 ;;;
|
|
|
842 ;;; Then we make a second pass, to fontify the buffer based on other patterns
|
|
|
843 ;;; specified by regexp. When we find a match for a region of text, we need
|
|
|
844 ;;; to change the fonts on those characters. This is done with the
|
|
|
845 ;;; put-text-property function, which knows how to efficiently share extents.
|
|
|
846 ;;; Conceptually, we are attaching some particular face to each of the
|
|
|
847 ;;; characters in a range, but the implementation of this involves creating
|
|
|
848 ;;; extents, or resizing existing ones.
|
|
|
849 ;;;
|
|
|
850 ;;; Each time a modification happens to a line, we re-fontify the entire line.
|
|
|
851 ;;; We do this by first removing the extents (text properties) on the line,
|
|
|
852 ;;; and then doing the syntactic and keyword passes again on that line. (More
|
|
|
853 ;;; generally, each modified region is extended to include the preceding and
|
|
|
854 ;;; following BOL or EOL.)
|
|
|
855 ;;;
|
|
|
856 ;;; This means that, as the user types, we repeatedly go back to the beginning
|
|
|
857 ;;; of the line, doing more work the longer the line gets. This doesn't cost
|
|
|
858 ;;; much in practice, and if we don't, then we incorrectly fontify things when,
|
|
|
859 ;;; for example, inserting spaces into `intfoo () {}'.
|
|
|
860 ;;;
|
|
|
861
|
|
|
862
|
|
|
863 ;; The user level functions
|
|
|
864
|
|
|
865 ;;;###autoload
|
|
|
866 (defun font-lock-mode (&optional arg)
|
|
|
867 "Toggle Font Lock Mode.
|
|
|
868 With arg, turn font-lock mode on if and only if arg is positive.
|
|
|
869
|
|
|
870 When Font Lock mode is enabled, text is fontified as you type it:
|
|
|
871
|
|
|
872 - Comments are displayed in `font-lock-comment-face';
|
|
|
873 - Strings are displayed in `font-lock-string-face';
|
|
|
874 - Documentation strings (in Lisp-like languages) are displayed in
|
|
|
875 `font-lock-doc-string-face';
|
|
|
876 - Language keywords (\"reserved words\") are displayed in
|
|
|
877 `font-lock-keyword-face';
|
|
|
878 - Function names in their defining form are displayed in
|
|
|
879 `font-lock-function-name-face';
|
|
|
880 - Variable names in their defining form are displayed in
|
|
|
881 `font-lock-variable-name-face';
|
|
|
882 - Type names are displayed in `font-lock-type-face';
|
|
|
883 - References appearing in help files and the like are displayed
|
|
|
884 in `font-lock-reference-face';
|
|
|
885 - Preprocessor declarations are displayed in
|
|
|
886 `font-lock-preprocessor-face';
|
|
|
887
|
|
|
888 and
|
|
|
889
|
|
|
890 - Certain other expressions are displayed in other faces according
|
|
|
891 to the value of the variable `font-lock-keywords'.
|
|
|
892
|
|
|
893 Where modes support different levels of fontification, you can use the variable
|
|
|
894 `font-lock-maximum-decoration' to specify which level you generally prefer.
|
|
|
895 When you turn Font Lock mode on/off the buffer is fontified/defontified, though
|
|
|
896 fontification occurs only if the buffer is less than `font-lock-maximum-size'.
|
|
|
897 To fontify a buffer without turning on Font Lock mode, and regardless of buffer
|
|
|
898 size, you can use \\[font-lock-fontify-buffer].
|
|
|
899
|
|
|
900 See the variable `font-lock-keywords' for customization."
|
|
|
901 (interactive "P")
|
|
|
902 (let ((on-p (if arg (> (prefix-numeric-value arg) 0) (not font-lock-mode)))
|
|
|
903 (maximum-size (if (not (consp font-lock-maximum-size))
|
|
|
904 font-lock-maximum-size
|
|
|
905 (cdr (or (assq major-mode font-lock-maximum-size)
|
|
|
906 (assq t font-lock-maximum-size))))))
|
|
|
907 ;; Font-lock mode will refuse to turn itself on if in batch mode, or if
|
|
|
908 ;; the current buffer is "invisible". The latter is because packages
|
|
|
909 ;; sometimes put their temporary buffers into some particular major mode
|
|
|
910 ;; to get syntax tables and variables and whatnot, but we don't want the
|
|
|
911 ;; fact that the user has font-lock-mode on a mode hook to slow these
|
|
|
912 ;; things down.
|
|
|
913 (if (or noninteractive (eq (aref (buffer-name) 0) ?\ ))
|
|
|
914 (setq on-p nil))
|
|
|
915 (if (equal (buffer-name) " *Compiler Input*") ; hack for bytecomp...
|
|
|
916 (setq on-p nil))
|
|
|
917 (cond (on-p
|
|
|
918 (make-local-hook 'after-change-functions)
|
|
|
919 (add-hook 'after-change-functions
|
|
|
920 'font-lock-after-change-function nil t)
|
|
|
921 (add-hook 'pre-idle-hook 'font-lock-pre-idle-hook))
|
|
|
922 (t
|
|
|
923 (remove-hook 'after-change-functions
|
|
|
924 'font-lock-after-change-function t)
|
|
|
925 (setq font-lock-defaults-computed nil
|
|
|
926 font-lock-keywords nil)
|
|
|
927 ;; We have no business doing this here, since
|
|
|
928 ;; pre-idle-hook is global. Other buffers may
|
|
|
929 ;; still be in font-lock mode. -dkindred@cs.cmu.edu
|
|
|
930 ;; (remove-hook 'pre-idle-hook 'font-lock-pre-idle-hook)
|
|
|
931 ))
|
|
|
932 (set (make-local-variable 'font-lock-mode) on-p)
|
|
|
933 (cond (on-p
|
|
|
934 (font-lock-set-defaults-1)
|
|
|
935 (run-hooks 'font-lock-mode-hook)
|
|
|
936 (cond (font-lock-fontified
|
|
|
937 nil)
|
|
|
938 ((or (null maximum-size) (<= (buffer-size) maximum-size))
|
|
|
939 (font-lock-fontify-buffer))
|
|
|
940 (font-lock-verbose
|
|
442
|
941 (progress-feedback-with-label
|
|
|
942 'font-lock
|
|
|
943 "Fontifying %s... buffer too big." 'abort
|
|
|
944 (buffer-name)))))
|
|
428
|
945 (font-lock-fontified
|
|
|
946 (setq font-lock-fontified nil)
|
|
|
947 (font-lock-unfontify-region (point-min) (point-max))
|
|
|
948 (font-lock-thing-lock-cleanup))
|
|
|
949 (t
|
|
|
950 (font-lock-thing-lock-cleanup)))
|
|
|
951 (redraw-modeline)))
|
|
|
952
|
|
|
953 ;; For init-file hooks
|
|
|
954 ;;;###autoload
|
|
|
955 (defun turn-on-font-lock ()
|
|
|
956 "Unconditionally turn on Font Lock mode."
|
|
444
|
957 (interactive)
|
|
428
|
958 (font-lock-mode 1))
|
|
|
959
|
|
|
960 ;;;###autoload
|
|
|
961 (defun turn-off-font-lock ()
|
|
|
962 "Unconditionally turn off Font Lock mode."
|
|
444
|
963 (interactive)
|
|
428
|
964 (font-lock-mode 0))
|
|
|
965
|
|
|
966 ;;; FSF has here:
|
|
|
967
|
|
|
968 ;; support for add-keywords, global-font-lock-mode and
|
|
|
969 ;; font-lock-support-mode (unified support for various *-lock modes).
|
|
|
970
|
|
|
971
|
|
|
972 ;; Fontification functions.
|
|
|
973
|
|
|
974 ;; We first define some defsubsts to encapsulate the way we add
|
|
|
975 ;; faces to a region of text. I am planning on modifying the
|
|
|
976 ;; text-property mechanism so that multiple independent classes
|
|
|
977 ;; of text properties can exist. That way, for example, ediff's
|
|
|
978 ;; face text properties don't interfere with font lock's face
|
|
|
979 ;; text properties. Due to the XEmacs implementation of text
|
|
|
980 ;; properties in terms of extents, doing this is fairly trivial:
|
|
|
981 ;; instead of using the `text-prop' property, you just use a
|
|
|
982 ;; specified property.
|
|
|
983
|
|
|
984 (defsubst font-lock-set-face (start end face)
|
|
|
985 ;; Set the face on the characters in the range.
|
|
|
986 (put-nonduplicable-text-property start end 'face face)
|
|
|
987 (put-nonduplicable-text-property start end 'font-lock t))
|
|
|
988
|
|
|
989 (defsubst font-lock-remove-face (start end)
|
|
|
990 ;; Remove any syntax highlighting on the characters in the range.
|
|
|
991 (put-nonduplicable-text-property start end 'face nil)
|
|
460
|
992 (put-nonduplicable-text-property start end 'font-lock nil)
|
|
|
993 (if lookup-syntax-properties
|
|
|
994 (put-nonduplicable-text-property start end 'syntax-table nil)))
|
|
|
995
|
|
|
996 (defsubst font-lock-set-syntax (start end syntax)
|
|
|
997 ;; Set the face on the characters in the range.
|
|
|
998 (put-nonduplicable-text-property start end 'syntax-table syntax)
|
|
|
999 (put-nonduplicable-text-property start end 'font-lock t))
|
|
428
|
1000
|
|
|
1001 (defsubst font-lock-any-faces-p (start end)
|
|
|
1002 ;; Return non-nil if we've put any syntax highlighting on
|
|
|
1003 ;; the characters in the range.
|
|
|
1004 ;;
|
|
|
1005 ;; used to look for 'text-prop property, but this has problems if
|
|
|
1006 ;; you put any other text properties in the vicinity. Simon
|
|
|
1007 ;; Marshall suggested looking for the 'face property (this is what
|
|
|
1008 ;; FSF Emacs does) but that's equally bogus. Only reliable way is
|
|
|
1009 ;; for font-lock to specially mark its extents.
|
|
|
1010 ;;
|
|
|
1011 ;; FSF's (equivalent) definition of this defsubst would be
|
|
|
1012 ;; (text-property-not-all start end 'font-lock nil)
|
|
|
1013 ;;
|
|
|
1014 ;; Perhaps our `map-extents' is faster than our definition
|
|
|
1015 ;; of `text-property-not-all'. #### If so, `text-property-not-all'
|
|
|
1016 ;; should be fixed ...
|
|
|
1017 ;;
|
|
|
1018 (map-extents 'extent-property (current-buffer) start (1- end) 'font-lock))
|
|
|
1019
|
|
|
1020
|
|
|
1021 ;; Fontification functions.
|
|
|
1022
|
|
|
1023 ;; Rather than the function, e.g., `font-lock-fontify-region' containing the
|
|
|
1024 ;; code to fontify a region, the function runs the function whose name is the
|
|
|
1025 ;; value of the variable, e.g., `font-lock-fontify-region-function'. Normally,
|
|
|
1026 ;; the value of this variable is, e.g., `font-lock-default-fontify-region'
|
|
|
1027 ;; which does contain the code to fontify a region. However, the value of the
|
|
|
1028 ;; variable could be anything and thus, e.g., `font-lock-fontify-region' could
|
|
|
1029 ;; do anything. The indirection of the fontification functions gives major
|
|
|
1030 ;; modes the capability of modifying the way font-lock.el fontifies. Major
|
|
|
1031 ;; modes can modify the values of, e.g., `font-lock-fontify-region-function',
|
|
|
1032 ;; via the variable `font-lock-defaults'.
|
|
|
1033 ;;
|
|
|
1034 ;; For example, Rmail mode sets the variable `font-lock-defaults' so that
|
|
|
1035 ;; font-lock.el uses its own function for buffer fontification. This function
|
|
|
1036 ;; makes fontification be on a message-by-message basis and so visiting an
|
|
|
1037 ;; RMAIL file is much faster. A clever implementation of the function might
|
|
|
1038 ;; fontify the headers differently than the message body. (It should, and
|
|
|
1039 ;; correspondingly for Mail mode, but I can't be bothered to do the work. Can
|
|
|
1040 ;; you?) This hints at a more interesting use...
|
|
|
1041 ;;
|
|
|
1042 ;; Languages that contain text normally contained in different major modes
|
|
|
1043 ;; could define their own fontification functions that treat text differently
|
|
|
1044 ;; depending on its context. For example, Perl mode could arrange that here
|
|
|
1045 ;; docs are fontified differently than Perl code. Or Yacc mode could fontify
|
|
|
1046 ;; rules one way and C code another. Neat!
|
|
|
1047 ;;
|
|
|
1048 ;; A further reason to use the fontification indirection feature is when the
|
|
|
1049 ;; default syntactual fontification, or the default fontification in general,
|
|
|
1050 ;; is not flexible enough for a particular major mode. For example, perhaps
|
|
|
1051 ;; comments are just too hairy for `font-lock-fontify-syntactically-region' to
|
|
|
1052 ;; cope with. You need to write your own version of that function, e.g.,
|
|
|
1053 ;; `hairy-fontify-syntactically-region', and make your own version of
|
|
|
1054 ;; `hairy-fontify-region' call that function before calling
|
|
|
1055 ;; `font-lock-fontify-keywords-region' for the normal regexp fontification
|
|
|
1056 ;; pass. And Hairy mode would set `font-lock-defaults' so that font-lock.el
|
|
|
1057 ;; would call your region fontification function instead of its own. For
|
|
|
1058 ;; example, TeX modes could fontify {\foo ...} and \bar{...} etc. multi-line
|
|
|
1059 ;; directives correctly and cleanly. (It is the same problem as fontifying
|
|
|
1060 ;; multi-line strings and comments; regexps are not appropriate for the job.)
|
|
|
1061
|
|
|
1062 ;;;###autoload
|
|
|
1063 (defun font-lock-fontify-buffer ()
|
|
|
1064 "Fontify the current buffer the way `font-lock-mode' would.
|
|
|
1065 See `font-lock-mode' for details.
|
|
|
1066
|
|
|
1067 This can take a while for large buffers."
|
|
|
1068 (interactive)
|
|
|
1069 (let ((font-lock-verbose (or font-lock-verbose (interactive-p))))
|
|
|
1070 (funcall font-lock-fontify-buffer-function)))
|
|
|
1071
|
|
|
1072 (defun font-lock-unfontify-buffer ()
|
|
|
1073 (funcall font-lock-unfontify-buffer-function))
|
|
|
1074
|
|
|
1075 (defun font-lock-fontify-region (beg end &optional loudly)
|
|
|
1076 (funcall font-lock-fontify-region-function beg end loudly))
|
|
|
1077
|
|
|
1078 (defun font-lock-unfontify-region (beg end &optional loudly)
|
|
|
1079 (funcall font-lock-unfontify-region-function beg end loudly))
|
|
|
1080
|
|
|
1081 (defun font-lock-default-fontify-buffer ()
|
|
|
1082 (interactive)
|
|
442
|
1083 ;; if we don't widen, then the C code will fail to
|
|
|
1084 ;; realize that we're inside a comment.
|
|
|
1085 (save-restriction
|
|
|
1086 (widen)
|
|
|
1087 (let ((was-on font-lock-mode)
|
|
|
1088 (font-lock-verbose (or font-lock-verbose (interactive-p)))
|
|
|
1089 (font-lock-message-threshold 0)
|
|
|
1090 (aborted nil))
|
|
|
1091 ;; Turn it on to run hooks and get the right font-lock-keywords.
|
|
|
1092 (or was-on (font-lock-mode 1))
|
|
|
1093 (font-lock-unfontify-region (point-min) (point-max) t)
|
|
|
1094 ;; (buffer-syntactic-context-flush-cache)
|
|
428
|
1095
|
|
442
|
1096 ;; If a ^G is typed during fontification, abort the fontification, but
|
|
|
1097 ;; return normally (do not signal.) This is to make it easy to abort
|
|
|
1098 ;; fontification if it's taking a long time, without also causing the
|
|
|
1099 ;; buffer not to pop up. If a real abort is desired, the user can ^G
|
|
|
1100 ;; again.
|
|
|
1101 ;;
|
|
|
1102 ;; Possibly this should happen down in font-lock-fontify-region instead
|
|
|
1103 ;; of here, but since that happens from the after-change-hook (meaning
|
|
|
1104 ;; much more frequently) I'm afraid of the bad consequences of stealing
|
|
|
1105 ;; the interrupt character at inopportune times.
|
|
|
1106 ;;
|
|
|
1107 (condition-case nil
|
|
|
1108 (save-excursion
|
|
|
1109 (font-lock-fontify-region (point-min) (point-max)))
|
|
|
1110 (t
|
|
|
1111 (setq aborted t)))
|
|
428
|
1112
|
|
442
|
1113 (or was-on ; turn it off if it was off.
|
|
|
1114 (let ((font-lock-fontified nil)) ; kludge to prevent defontification
|
|
|
1115 (font-lock-mode 0)))
|
|
|
1116 (set (make-local-variable 'font-lock-fontified) t)
|
|
|
1117 (when (and aborted font-lock-verbose)
|
|
|
1118 (progress-feedback-with-label 'font-lock "Fontifying %s... aborted."
|
|
|
1119 'abort (buffer-name))))
|
|
|
1120 (run-hooks 'font-lock-after-fontify-buffer-hook)))
|
|
428
|
1121
|
|
|
1122 (defun font-lock-default-unfontify-buffer ()
|
|
|
1123 (font-lock-unfontify-region (point-min) (point-max))
|
|
|
1124 (set (make-local-variable 'font-lock-fontified) nil))
|
|
|
1125
|
|
|
1126 ;; This used to be `font-lock-fontify-region', and before that,
|
|
|
1127 ;; `font-lock-fontify-region' used to be the name used for what is now
|
|
|
1128 ;; `font-lock-fontify-syntactically-region'.
|
|
|
1129 (defun font-lock-default-fontify-region (beg end &optional loudly)
|
|
|
1130 (let ((modified (buffer-modified-p))
|
|
|
1131 (buffer-undo-list t) (inhibit-read-only t)
|
|
|
1132 (old-syntax-table (syntax-table))
|
|
|
1133 buffer-file-name buffer-file-truename)
|
|
|
1134 (unwind-protect
|
|
|
1135 (progn
|
|
|
1136 ;; Use the fontification syntax table, if any.
|
|
|
1137 (if font-lock-syntax-table (set-syntax-table font-lock-syntax-table))
|
|
|
1138 ;; Now do the fontification.
|
|
460
|
1139 (font-lock-unfontify-region beg end)
|
|
|
1140 (when font-lock-syntactic-keywords
|
|
|
1141 (font-lock-fontify-syntactic-keywords-region beg end))
|
|
|
1142 (unless font-lock-keywords-only
|
|
428
|
1143 (font-lock-fontify-syntactically-region beg end loudly))
|
|
|
1144 (font-lock-fontify-keywords-region beg end loudly))
|
|
|
1145 ;; Clean up.
|
|
|
1146 (set-syntax-table old-syntax-table)
|
|
|
1147 (and (not modified) (buffer-modified-p) (set-buffer-modified-p nil)))))
|
|
|
1148
|
|
|
1149 ;; The following must be rethought, since keywords can override fontification.
|
|
|
1150 ; ;; Now scan for keywords, but not if we are inside a comment now.
|
|
|
1151 ; (or (and (not font-lock-keywords-only)
|
|
|
1152 ; (let ((state (parse-partial-sexp beg end nil nil
|
|
|
1153 ; font-lock-cache-state)))
|
|
|
1154 ; (or (nth 4 state) (nth 7 state))))
|
|
|
1155 ; (font-lock-fontify-keywords-region beg end))
|
|
|
1156
|
|
|
1157 (defun font-lock-default-unfontify-region (beg end &optional maybe-loudly)
|
|
|
1158 (when (and maybe-loudly font-lock-verbose
|
|
|
1159 (>= (- end beg) font-lock-message-threshold))
|
|
442
|
1160 (progress-feedback-with-label 'font-lock "Fontifying %s..." 0
|
|
|
1161 (buffer-name)))
|
|
428
|
1162 (let ((modified (buffer-modified-p))
|
|
|
1163 (buffer-undo-list t) (inhibit-read-only t)
|
|
|
1164 buffer-file-name buffer-file-truename)
|
|
|
1165 (font-lock-remove-face beg end)
|
|
|
1166 (and (not modified) (buffer-modified-p) (set-buffer-modified-p nil))))
|
|
|
1167
|
|
|
1168 ;; Following is the original FSF version (similar to our original
|
|
442
|
1169 ;; version, before the deferred stuff was added).
|
|
428
|
1170 ;;
|
|
|
1171 ;; I think that lazy-lock v2 tries to do something similar.
|
|
|
1172 ;; Those efforts should be merged.
|
|
|
1173
|
|
|
1174 ;; Called when any modification is made to buffer text.
|
|
|
1175 ;(defun font-lock-after-change-function (beg end old-len)
|
|
|
1176 ; (save-excursion
|
|
|
1177 ; (save-match-data
|
|
|
1178 ; ;; Rescan between start of line from `beg' and start of line after `end'.
|
|
|
1179 ; (font-lock-fontify-region
|
|
|
1180 ; (progn (goto-char beg) (beginning-of-line) (point))
|
|
|
1181 ; (progn (goto-char end) (forward-line 1) (point))))))
|
|
|
1182
|
|
442
|
1183 (defvar font-lock-always-fontify-immediately nil
|
|
|
1184 "Set this to non-nil to disable font-lock deferral.
|
|
|
1185 Otherwise, changes to existing text will not be processed until the
|
|
|
1186 next redisplay cycle, avoiding excessive fontification when many
|
|
|
1187 buffer modifications are performed or a buffer is reverted.")
|
|
428
|
1188
|
|
462
|
1189 ;; list of buffers in which there is a pending change.
|
|
|
1190 (defvar font-lock-pending-buffer-table (make-hash-table :weakness 'key))
|
|
|
1191 ;; table used to keep track of ranges needing fontification.
|
|
442
|
1192 (defvar font-lock-range-table (make-range-table))
|
|
428
|
1193
|
|
|
1194 (defun font-lock-pre-idle-hook ()
|
|
442
|
1195 (condition-case font-lock-error
|
|
462
|
1196 (if (> (hash-table-count font-lock-pending-buffer-table) 0)
|
|
442
|
1197 (font-lock-fontify-pending-extents))
|
|
|
1198 (error (warn "Error caught in `font-lock-pre-idle-hook': %s"
|
|
|
1199 font-lock-error))))
|
|
428
|
1200
|
|
|
1201 ;;; called when any modification is made to buffer text. This function
|
|
442
|
1202 ;;; remembers the changed ranges until the next redisplay, at which point
|
|
|
1203 ;;; the extents are merged and pruned, and the resulting ranges fontified.
|
|
|
1204 ;;; This function could easily be adapted to other after-change-functions.
|
|
428
|
1205
|
|
|
1206 (defun font-lock-after-change-function (beg end old-len)
|
|
442
|
1207 (when font-lock-mode
|
|
462
|
1208 ;; treat deletions as if the following character (or previous, if
|
|
|
1209 ;; there is no following) were inserted. this is a bit of a hack
|
|
|
1210 ;; but allows us to use text properties for everything.
|
|
|
1211 (if (= beg end)
|
|
|
1212 (cond ((/= end (point-max)) (setq end (1+ end)))
|
|
|
1213 ((/= beg (point-min)) (setq beg (1- beg)))
|
|
|
1214 (t nil)))
|
|
|
1215 (put-text-property beg end 'font-lock-pending t)
|
|
|
1216 (puthash (current-buffer) t font-lock-pending-buffer-table)
|
|
442
|
1217 (if font-lock-always-fontify-immediately
|
|
|
1218 (font-lock-fontify-pending-extents))))
|
|
428
|
1219
|
|
442
|
1220 (defun font-lock-fontify-pending-extents ()
|
|
|
1221 ;; ah, the beauty of mapping functions.
|
|
|
1222 ;; this function is actually shorter than the old version, which handled
|
|
|
1223 ;; only one buffer and one contiguous region!
|
|
|
1224 (save-match-data
|
|
|
1225 (maphash
|
|
462
|
1226 #'(lambda (buffer dummy)
|
|
442
|
1227 ;; remove first, to avoid infinite reprocessing if error
|
|
462
|
1228 (remhash buffer font-lock-pending-buffer-table)
|
|
442
|
1229 (when (buffer-live-p buffer)
|
|
|
1230 (clear-range-table font-lock-range-table)
|
|
|
1231 (with-current-buffer buffer
|
|
|
1232 (save-excursion
|
|
|
1233 (save-restriction
|
|
462
|
1234 ;; if we don't widen, then the C code in
|
|
|
1235 ;; syntactically-sectionize will fail to realize that
|
|
|
1236 ;; we're inside a comment. #### We don't actually use
|
|
|
1237 ;; syntactically-sectionize any more. Do we still
|
|
|
1238 ;; need the widen?
|
|
442
|
1239 (widen)
|
|
502
|
1240 (map-extents
|
|
|
1241 #'(lambda (ex dummy-maparg)
|
|
|
1242 ;; first expand the ranges to full lines,
|
|
|
1243 ;; because that is what will be fontified;
|
|
|
1244 ;; then use a range table to merge the
|
|
|
1245 ;; ranges. (we could also do this simply using
|
|
|
1246 ;; text properties. the range table code was
|
|
|
1247 ;; here from a previous version of this code
|
|
|
1248 ;; and works just as well.)
|
|
|
1249 (let* ((beg (extent-start-position ex))
|
|
|
1250 (end (extent-end-position ex))
|
|
|
1251 (beg (progn (goto-char beg)
|
|
|
1252 (beginning-of-line)
|
|
|
1253 (point)))
|
|
|
1254 (end (progn (goto-char end)
|
|
|
1255 (forward-line 1)
|
|
|
1256 (point))))
|
|
|
1257 (put-range-table beg end t
|
|
|
1258 font-lock-range-table)))
|
|
|
1259 nil nil nil nil nil 'font-lock-pending t)
|
|
|
1260 ;; clear all pending extents first in case of error below.
|
|
|
1261 (put-text-property (point-min) (point-max)
|
|
|
1262 'font-lock-pending nil)
|
|
|
1263 (map-range-table
|
|
|
1264 #'(lambda (beg end val)
|
|
462
|
1265 ;; This creates some unnecessary progress gauges.
|
|
442
|
1266 ;; (if (and (= beg (point-min))
|
|
|
1267 ;; (= end (point-max)))
|
|
|
1268 ;; (font-lock-fontify-buffer)
|
|
|
1269 ;; (font-lock-fontify-region beg end)))
|
|
502
|
1270 (font-lock-fontify-region beg end))
|
|
|
1271 font-lock-range-table))))))
|
|
462
|
1272 font-lock-pending-buffer-table)))
|
|
428
|
1273
|
|
|
1274 ;; Syntactic fontification functions.
|
|
|
1275
|
|
430
|
1276 (defun font-lock-lisp-like (mode)
|
|
|
1277 ;; Note: (or (get mode 'font-lock-lisp-like) (string-match ...)) is
|
|
|
1278 ;; not enough because the property needs to be able to specify a nil
|
|
|
1279 ;; value.
|
|
|
1280 (if (plist-member (symbol-plist mode) 'font-lock-lisp-like)
|
|
|
1281 (get mode 'font-lock-lisp-like)
|
|
|
1282 ;; If the property is not specified, guess. Similar logic exists
|
|
|
1283 ;; in add-log, but I think this encompasses more modes.
|
|
|
1284 (string-match "lisp\\|scheme" (symbol-name mode))))
|
|
|
1285
|
|
460
|
1286 ;; fontify-syntactically-region used to use syntactically-sectionize, which
|
|
|
1287 ;; was supposedly much faster than the FSF version because it was written in
|
|
|
1288 ;; C. However, the FSF version uses parse-partial-sexp, which is also
|
|
|
1289 ;; written in C, and the benchmarking I did showed the
|
|
|
1290 ;; syntactically-sectionize code to be slower overall. So here's the FSF
|
|
|
1291 ;; version, modified to support font-lock-doc-string-face.
|
|
|
1292 ;; -- mct 2000-12-29
|
|
428
|
1293 (defun font-lock-fontify-syntactically-region (start end &optional loudly)
|
|
|
1294 "Put proper face on each string and comment between START and END.
|
|
|
1295 START should be at the beginning of a line."
|
|
|
1296 (if font-lock-keywords-only
|
|
|
1297 nil
|
|
460
|
1298
|
|
|
1299 ;; #### Shouldn't this just be using 'loudly??
|
|
428
|
1300 (when (and font-lock-verbose
|
|
|
1301 (>= (- end start) font-lock-message-threshold))
|
|
442
|
1302 (progress-feedback-with-label 'font-lock
|
|
|
1303 "Fontifying %s... (syntactically)" 5
|
|
|
1304 (buffer-name)))
|
|
428
|
1305 (goto-char start)
|
|
460
|
1306
|
|
|
1307 (let ((lisp-like (font-lock-lisp-like major-mode))
|
|
|
1308 (cache (marker-position font-lock-cache-position))
|
|
|
1309 state string beg depth)
|
|
|
1310 ;;
|
|
|
1311 ;; Find the state at the `beginning-of-line' before `start'.
|
|
|
1312 (if (eq start cache)
|
|
|
1313 ;; Use the cache for the state of `start'.
|
|
|
1314 (setq state font-lock-cache-state)
|
|
|
1315 ;; Find the state of `start'.
|
|
|
1316 (if (null font-lock-beginning-of-syntax-function)
|
|
|
1317 ;; Use the state at the previous cache position, if any, or
|
|
|
1318 ;; otherwise calculate from `point-min'.
|
|
|
1319 (if (or (null cache) (< start cache))
|
|
|
1320 (setq state (parse-partial-sexp (point-min) start))
|
|
|
1321 (setq state (parse-partial-sexp cache start nil nil
|
|
|
1322 font-lock-cache-state)))
|
|
|
1323 ;; Call the function to move outside any syntactic block.
|
|
|
1324 (funcall font-lock-beginning-of-syntax-function)
|
|
|
1325 (setq state (parse-partial-sexp (point) start)))
|
|
|
1326 ;; Cache the state and position of `start'.
|
|
|
1327 (setq font-lock-cache-state state)
|
|
|
1328 (set-marker font-lock-cache-position start))
|
|
|
1329 ;;
|
|
|
1330 ;; If the region starts inside a string or comment, show the extent of it.
|
|
|
1331 (when (or (nth 3 state) (nth 4 state))
|
|
|
1332 (setq string (nth 3 state) beg (point))
|
|
|
1333 (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
|
|
|
1334 (font-lock-set-face beg (point) (if string
|
|
|
1335 font-lock-string-face
|
|
|
1336 font-lock-comment-face)))
|
|
|
1337 ;;
|
|
|
1338 ;; Find each interesting place between here and `end'.
|
|
|
1339 (while (and (< (point) end)
|
|
|
1340 (progn
|
|
|
1341 (setq state (parse-partial-sexp (point) end nil nil state
|
|
|
1342 'syntax-table))
|
|
|
1343 (or (nth 3 state) (nth 4 state))))
|
|
|
1344 (setq depth (nth 0 state) string (nth 3 state) beg (nth 8 state))
|
|
|
1345 (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
|
|
|
1346 (if string
|
|
|
1347 ;; #### It would be nice if we handled Python and other
|
|
|
1348 ;; non-Lisp languages with docstrings correctly.
|
|
|
1349 (let ((face (if (and lisp-like (= depth 1))
|
|
|
1350 'font-lock-doc-string-face
|
|
|
1351 'font-lock-string-face)))
|
|
|
1352 (if font-lock-fontify-string-delimiters
|
|
|
1353 (font-lock-set-face beg (point) face)
|
|
|
1354 (font-lock-set-face (+ beg 1) (- (point) 1) face)))
|
|
|
1355 (font-lock-set-face beg (point)
|
|
|
1356 font-lock-comment-face))))))
|
|
428
|
1357
|
|
|
1358 ;;; Additional text property functions.
|
|
|
1359
|
|
|
1360 ;; The following three text property functions are not generally available (and
|
|
|
1361 ;; it's not certain that they should be) so they are inlined for speed.
|
|
|
1362 ;; The case for `fillin-text-property' is simple; it may or not be generally
|
|
|
1363 ;; useful. (Since it is used here, it is useful in at least one place.;-)
|
|
|
1364 ;; However, the case for `append-text-property' and `prepend-text-property' is
|
|
|
1365 ;; more complicated. Should they remove duplicate property values or not? If
|
|
|
1366 ;; so, should the first or last duplicate item remain? Or the one that was
|
|
|
1367 ;; added? In our implementation, the first duplicate remains.
|
|
|
1368
|
|
|
1369 ;; XEmacs: modified all these functions to use
|
|
|
1370 ;; `put-nonduplicable-text-property' instead of `put-text-property', and
|
|
|
1371 ;; the first one to take both SETPROP and MARKPROP, in accordance with the
|
|
|
1372 ;; changed definitions of `font-lock-any-faces-p' and `font-lock-set-face'.
|
|
|
1373
|
|
|
1374 (defsubst font-lock-fillin-text-property (start end setprop markprop value &optional object)
|
|
|
1375 "Fill in one property of the text from START to END.
|
|
|
1376 Arguments PROP and VALUE specify the property and value to put where none are
|
|
|
1377 already in place. Therefore existing property values are not overwritten.
|
|
|
1378 Optional argument OBJECT is the string or buffer containing the text."
|
|
|
1379 (let ((start (text-property-any start end markprop nil object)) next)
|
|
|
1380 (while start
|
|
|
1381 (setq next (next-single-property-change start markprop object end))
|
|
|
1382 (put-nonduplicable-text-property start next setprop value object)
|
|
|
1383 (put-nonduplicable-text-property start next markprop value object)
|
|
|
1384 (setq start (text-property-any next end markprop nil object)))))
|
|
|
1385
|
|
|
1386 ;; This function (from simon's unique.el) is rewritten and inlined for speed.
|
|
|
1387 ;(defun unique (list function)
|
|
|
1388 ; "Uniquify LIST, deleting elements using FUNCTION.
|
|
|
1389 ;Return the list with subsequent duplicate items removed by side effects.
|
|
|
1390 ;FUNCTION is called with an element of LIST and a list of elements from LIST,
|
|
|
1391 ;and should return the list of elements with occurrences of the element removed,
|
|
|
1392 ;i.e., a function such as `delete' or `delq'.
|
|
|
1393 ;This function will work even if LIST is unsorted. See also `uniq'."
|
|
|
1394 ; (let ((list list))
|
|
|
1395 ; (while list
|
|
|
1396 ; (setq list (setcdr list (funcall function (car list) (cdr list))))))
|
|
|
1397 ; list)
|
|
|
1398
|
|
|
1399 (defsubst font-lock-unique (list)
|
|
|
1400 "Uniquify LIST, deleting elements using `delq'.
|
|
|
1401 Return the list with subsequent duplicate items removed by side effects."
|
|
|
1402 (let ((list list))
|
|
|
1403 (while list
|
|
|
1404 (setq list (setcdr list (delq (car list) (cdr list))))))
|
|
|
1405 list)
|
|
|
1406
|
|
|
1407 ;; A generalisation of `facemenu-add-face' for any property, but without the
|
|
|
1408 ;; removal of inactive faces via `facemenu-discard-redundant-faces' and special
|
|
|
1409 ;; treatment of `default'. Uses `unique' to remove duplicate property values.
|
|
|
1410 (defsubst font-lock-prepend-text-property (start end prop value &optional object)
|
|
|
1411 "Prepend to one property of the text from START to END.
|
|
|
1412 Arguments PROP and VALUE specify the property and value to prepend to the value
|
|
|
1413 already in place. The resulting property values are always lists, and unique.
|
|
|
1414 Optional argument OBJECT is the string or buffer containing the text."
|
|
|
1415 (let ((val (if (listp value) value (list value))) next prev)
|
|
|
1416 (while (/= start end)
|
|
|
1417 (setq next (next-single-property-change start prop object end)
|
|
|
1418 prev (get-text-property start prop object))
|
|
|
1419 (put-text-property
|
|
|
1420 start next prop
|
|
|
1421 (font-lock-unique (append val (if (listp prev) prev (list prev))))
|
|
|
1422 object)
|
|
|
1423 (setq start next))))
|
|
|
1424
|
|
|
1425 (defsubst font-lock-append-text-property (start end prop value &optional object)
|
|
|
1426 "Append to one property of the text from START to END.
|
|
|
1427 Arguments PROP and VALUE specify the property and value to append to the value
|
|
|
1428 already in place. The resulting property values are always lists, and unique.
|
|
|
1429 Optional argument OBJECT is the string or buffer containing the text."
|
|
|
1430 (let ((val (if (listp value) value (list value))) next prev)
|
|
|
1431 (while (/= start end)
|
|
|
1432 (setq next (next-single-property-change start prop object end)
|
|
|
1433 prev (get-text-property start prop object))
|
|
|
1434 (put-text-property
|
|
|
1435 start next prop
|
|
|
1436 (font-lock-unique (append (if (listp prev) prev (list prev)) val))
|
|
|
1437 object)
|
|
|
1438 (setq start next))))
|
|
|
1439
|
|
460
|
1440 ;;; Syntactic regexp fontification functions (taken from FSF Emacs 20.7.1)
|
|
|
1441
|
|
|
1442 ;; These syntactic keyword pass functions are identical to those keyword pass
|
|
|
1443 ;; functions below, with the following exceptions; (a) they operate on
|
|
|
1444 ;; `font-lock-syntactic-keywords' of course, (b) they are all `defun' as speed
|
|
|
1445 ;; is less of an issue, (c) eval of property value does not occur JIT as speed
|
|
|
1446 ;; is less of an issue, (d) OVERRIDE cannot be `prepend' or `append' as it
|
|
|
1447 ;; makes no sense for `syntax-table' property values, (e) they do not do it
|
|
|
1448 ;; LOUDLY as it is not likely to be intensive.
|
|
|
1449
|
|
|
1450 (defun font-lock-apply-syntactic-highlight (highlight)
|
|
|
1451 "Apply HIGHLIGHT following a match.
|
|
|
1452 HIGHLIGHT should be of the form MATCH-HIGHLIGHT,
|
|
|
1453 see `font-lock-syntactic-keywords'."
|
|
|
1454 (let* ((match (nth 0 highlight))
|
|
|
1455 (start (match-beginning match)) (end (match-end match))
|
|
|
1456 (value (nth 1 highlight))
|
|
|
1457 (override (nth 2 highlight)))
|
|
|
1458 (unless (numberp (car-safe value))
|
|
|
1459 (setq value (eval value)))
|
|
|
1460 (cond ((not start)
|
|
|
1461 ;; No match but we might not signal an error.
|
|
|
1462 (or (nth 3 highlight)
|
|
|
1463 (error "No match %d in highlight %S" match highlight)))
|
|
|
1464 ((not override)
|
|
|
1465 ;; Cannot override existing fontification.
|
|
|
1466 (or (map-extents 'extent-property (current-buffer)
|
|
|
1467 start end 'syntax-table)
|
|
|
1468 (font-lock-set-syntax start end value)))
|
|
|
1469 ((eq override t)
|
|
|
1470 ;; Override existing fontification.
|
|
|
1471 (font-lock-set-syntax start end value))
|
|
|
1472 ((eq override 'keep)
|
|
|
1473 ;; Keep existing fontification.
|
|
|
1474 (font-lock-fillin-text-property start end
|
|
|
1475 'syntax-table 'font-lock value)))))
|
|
|
1476
|
|
|
1477 (defun font-lock-fontify-syntactic-anchored-keywords (keywords limit)
|
|
|
1478 "Fontify according to KEYWORDS until LIMIT.
|
|
|
1479 KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
|
|
|
1480 LIMIT can be modified by the value of its PRE-MATCH-FORM."
|
|
|
1481 (let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
|
|
|
1482 ;; Evaluate PRE-MATCH-FORM.
|
|
|
1483 (pre-match-value (eval (nth 1 keywords))))
|
|
|
1484 ;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
|
|
|
1485 (if (and (numberp pre-match-value) (> pre-match-value (point)))
|
|
|
1486 (setq limit pre-match-value)
|
|
|
1487 (save-excursion (end-of-line) (setq limit (point))))
|
|
|
1488 (save-match-data
|
|
|
1489 ;; Find an occurrence of `matcher' before `limit'.
|
|
|
1490 (while (if (stringp matcher)
|
|
|
1491 (re-search-forward matcher limit t)
|
|
|
1492 (funcall matcher limit))
|
|
|
1493 ;; Apply each highlight to this instance of `matcher'.
|
|
|
1494 (setq highlights lowdarks)
|
|
|
1495 (while highlights
|
|
|
1496 (font-lock-apply-syntactic-highlight (car highlights))
|
|
|
1497 (setq highlights (cdr highlights)))))
|
|
|
1498 ;; Evaluate POST-MATCH-FORM.
|
|
|
1499 (eval (nth 2 keywords))))
|
|
|
1500
|
|
|
1501 (defun font-lock-fontify-syntactic-keywords-region (start end)
|
|
|
1502 "Fontify according to `font-lock-syntactic-keywords' between START and END.
|
|
|
1503 START should be at the beginning of a line."
|
|
|
1504 ;; ;; If `font-lock-syntactic-keywords' is a symbol, get the real keywords.
|
|
|
1505 (when (symbolp font-lock-syntactic-keywords)
|
|
|
1506 (setq font-lock-syntactic-keywords (font-lock-eval-keywords
|
|
|
1507 font-lock-syntactic-keywords)))
|
|
|
1508 ;; If `font-lock-syntactic-keywords' is not compiled, compile it.
|
|
|
1509 (unless (eq (car font-lock-syntactic-keywords) t)
|
|
|
1510 (setq font-lock-syntactic-keywords (font-lock-compile-keywords
|
|
|
1511 font-lock-syntactic-keywords)))
|
|
|
1512 ;; Get down to business.
|
|
|
1513 (let ((case-fold-search font-lock-keywords-case-fold-search)
|
|
|
1514 (keywords (cdr font-lock-syntactic-keywords))
|
|
|
1515 keyword matcher highlights)
|
|
|
1516 (while keywords
|
|
|
1517 ;; Find an occurrence of `matcher' from `start' to `end'.
|
|
|
1518 (setq keyword (car keywords) matcher (car keyword))
|
|
|
1519 (goto-char start)
|
|
|
1520 (while (if (stringp matcher)
|
|
|
1521 (re-search-forward matcher end t)
|
|
|
1522 (funcall matcher end))
|
|
|
1523 ;; Apply each highlight to this instance of `matcher', which may be
|
|
|
1524 ;; specific highlights or more keywords anchored to `matcher'.
|
|
|
1525 (setq highlights (cdr keyword))
|
|
|
1526 (while highlights
|
|
|
1527 (if (numberp (car (car highlights)))
|
|
|
1528 (font-lock-apply-syntactic-highlight (car highlights))
|
|
|
1529 (font-lock-fontify-syntactic-anchored-keywords (car highlights)
|
|
|
1530 end))
|
|
|
1531 (setq highlights (cdr highlights)))
|
|
|
1532 )
|
|
|
1533 (setq keywords (cdr keywords)))))
|
|
|
1534
|
|
428
|
1535 ;;; Regexp fontification functions.
|
|
|
1536
|
|
|
1537 (defsubst font-lock-apply-highlight (highlight)
|
|
|
1538 "Apply HIGHLIGHT following a match.
|
|
|
1539 HIGHLIGHT should be of the form MATCH-HIGHLIGHT, see `font-lock-keywords'."
|
|
|
1540 (let* ((match (nth 0 highlight))
|
|
|
1541 (start (match-beginning match)) (end (match-end match))
|
|
|
1542 (override (nth 2 highlight)))
|
|
|
1543 (let ((newface (nth 1 highlight)))
|
|
|
1544 (or (symbolp newface)
|
|
|
1545 (setq newface (eval newface)))
|
|
|
1546 (cond ((not start)
|
|
|
1547 ;; No match but we might not signal an error.
|
|
|
1548 (or (nth 3 highlight)
|
|
|
1549 (error "No match %d in highlight %S" match highlight)))
|
|
|
1550 ((= start end) nil)
|
|
|
1551 ((not override)
|
|
|
1552 ;; Cannot override existing fontification.
|
|
|
1553 (or (font-lock-any-faces-p start end)
|
|
|
1554 (font-lock-set-face start end newface)))
|
|
|
1555 ((eq override t)
|
|
|
1556 ;; Override existing fontification.
|
|
|
1557 (font-lock-set-face start end newface))
|
|
|
1558 ((eq override 'keep)
|
|
|
1559 ;; Keep existing fontification.
|
|
|
1560 (font-lock-fillin-text-property start end 'face 'font-lock
|
|
|
1561 newface))
|
|
|
1562 ((eq override 'prepend)
|
|
|
1563 ;; Prepend to existing fontification.
|
|
|
1564 (font-lock-prepend-text-property start end 'face newface))
|
|
|
1565 ((eq override 'append)
|
|
|
1566 ;; Append to existing fontification.
|
|
|
1567 (font-lock-append-text-property start end 'face newface))))))
|
|
|
1568
|
|
|
1569 (defsubst font-lock-fontify-anchored-keywords (keywords limit)
|
|
|
1570 "Fontify according to KEYWORDS until LIMIT.
|
|
|
1571 KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
|
|
|
1572 LIMIT can be modified by the value of its PRE-MATCH-FORM."
|
|
|
1573 (let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
|
|
|
1574 ;; Evaluate PRE-MATCH-FORM.
|
|
|
1575 (pre-match-value (eval (nth 1 keywords))))
|
|
|
1576 ;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
|
|
|
1577 (if (and (numberp pre-match-value) (> pre-match-value (point)))
|
|
|
1578 (setq limit pre-match-value)
|
|
|
1579 (save-excursion (end-of-line) (setq limit (point))))
|
|
|
1580 (save-match-data
|
|
|
1581 ;; Find an occurrence of `matcher' before `limit'.
|
|
|
1582 (while (if (stringp matcher)
|
|
|
1583 (re-search-forward matcher limit t)
|
|
|
1584 (funcall matcher limit))
|
|
|
1585 ;; Apply each highlight to this instance of `matcher'.
|
|
|
1586 (setq highlights lowdarks)
|
|
|
1587 (while highlights
|
|
|
1588 (font-lock-apply-highlight (car highlights))
|
|
|
1589 (setq highlights (cdr highlights)))))
|
|
|
1590 ;; Evaluate POST-MATCH-FORM.
|
|
|
1591 (eval (nth 2 keywords))))
|
|
|
1592
|
|
|
1593 (defun font-lock-fontify-keywords-region (start end &optional loudvar)
|
|
|
1594 "Fontify according to `font-lock-keywords' between START and END.
|
|
|
1595 START should be at the beginning of a line."
|
|
|
1596 (let ((loudly (and font-lock-verbose
|
|
|
1597 (>= (- end start) font-lock-message-threshold))))
|
|
442
|
1598 (let* ((case-fold-search font-lock-keywords-case-fold-search)
|
|
|
1599 (keywords (cdr (if (eq (car-safe font-lock-keywords) t)
|
|
|
1600 font-lock-keywords
|
|
|
1601 (font-lock-compile-keywords))))
|
|
|
1602 (bufname (buffer-name))
|
|
|
1603 (progress 5) (old-progress 5)
|
|
|
1604 (iter 0)
|
|
|
1605 (nkeywords (length keywords))
|
|
|
1606 keyword matcher highlights)
|
|
428
|
1607 ;;
|
|
|
1608 ;; Fontify each item in `font-lock-keywords' from `start' to `end'.
|
|
442
|
1609 ;; In order to measure progress accurately we need to know how
|
|
|
1610 ;; many keywords we have and how big the region is. Then progress
|
|
|
1611 ;; is ((pos - start)/ (end - start) * nkeywords
|
|
|
1612 ;; + iteration / nkeywords) * 100
|
|
428
|
1613 (while keywords
|
|
|
1614 ;;
|
|
|
1615 ;; Find an occurrence of `matcher' from `start' to `end'.
|
|
|
1616 (setq keyword (car keywords) matcher (car keyword))
|
|
|
1617 (goto-char start)
|
|
|
1618 (while (and (< (point) end)
|
|
|
1619 (if (stringp matcher)
|
|
|
1620 (re-search-forward matcher end t)
|
|
|
1621 (funcall matcher end)))
|
|
442
|
1622 ;; calculate progress
|
|
|
1623 (setq progress
|
|
|
1624 (+ (/ (* (- (point) start) 95) (* (- end start) nkeywords))
|
|
|
1625 (/ (* iter 95) nkeywords) 5))
|
|
|
1626 (when (and loudly (> progress old-progress))
|
|
|
1627 (progress-feedback-with-label 'font-lock
|
|
|
1628 "Fontifying %s... (regexps)"
|
|
|
1629 progress bufname))
|
|
|
1630 (setq old-progress progress)
|
|
428
|
1631 ;; Apply each highlight to this instance of `matcher', which may be
|
|
|
1632 ;; specific highlights or more keywords anchored to `matcher'.
|
|
|
1633 (setq highlights (cdr keyword))
|
|
|
1634 (while highlights
|
|
|
1635 (if (numberp (car (car highlights)))
|
|
|
1636 (let ((end (match-end (car (car highlights)))))
|
|
|
1637 (font-lock-apply-highlight (car highlights))
|
|
|
1638 ;; restart search just after the end of the
|
|
|
1639 ;; keyword so keywords can share bracketing
|
|
|
1640 ;; expressions.
|
|
|
1641 (and end (goto-char end)))
|
|
|
1642 (font-lock-fontify-anchored-keywords (car highlights) end))
|
|
|
1643 (setq highlights (cdr highlights))))
|
|
442
|
1644 (setq iter (1+ iter))
|
|
428
|
1645 (setq keywords (cdr keywords))))
|
|
442
|
1646 (if loudly
|
|
|
1647 (progress-feedback-with-label 'font-lock "Fontifying %s... " 100
|
|
|
1648 (buffer-name)))))
|
|
428
|
1649
|
|
|
1650
|
|
|
1651 ;; Various functions.
|
|
|
1652
|
|
|
1653 ;; Turn off other related packages if they're on. I prefer a hook. --sm.
|
|
|
1654 ;; These explicit calls are easier to understand
|
|
|
1655 ;; because people know what they will do.
|
|
|
1656 ;; A hook is a mystery because it might do anything whatever. --rms.
|
|
|
1657 (defun font-lock-thing-lock-cleanup ()
|
|
|
1658 (cond ((and (boundp 'fast-lock-mode) fast-lock-mode)
|
|
|
1659 (fast-lock-mode -1))
|
|
|
1660 ((and (boundp 'lazy-lock-mode) lazy-lock-mode)
|
|
|
1661 (lazy-lock-mode -1))
|
|
|
1662 ((and (boundp 'lazy-shot-mode) lazy-shot-mode)
|
|
|
1663 (lazy-shot-mode -1))))
|
|
|
1664
|
|
502
|
1665 ; Do something special for these packages after fontifying. I prefer a hook.
|
|
428
|
1666 (defun font-lock-after-fontify-buffer ()
|
|
|
1667 (cond ((and (boundp 'fast-lock-mode) fast-lock-mode)
|
|
502
|
1668 (declare-fboundp (fast-lock-after-fontify-buffer)))
|
|
428
|
1669 ((and (boundp 'lazy-lock-mode) lazy-lock-mode)
|
|
502
|
1670 (declare-fboundp (lazy-lock-after-fontify-buffer)))))
|
|
428
|
1671
|
|
|
1672
|
|
|
1673 ;; Various functions.
|
|
|
1674
|
|
|
1675 (defun font-lock-compile-keywords (&optional keywords)
|
|
|
1676 ;; Compile `font-lock-keywords' into the form (t KEYWORD ...) where KEYWORD
|
|
|
1677 ;; is the (MATCHER HIGHLIGHT ...) shown in the variable's doc string.
|
|
|
1678 (let ((keywords (or keywords font-lock-keywords)))
|
|
|
1679 (setq font-lock-keywords
|
|
|
1680 (if (eq (car-safe keywords) t)
|
|
|
1681 keywords
|
|
|
1682 (cons t (mapcar 'font-lock-compile-keyword keywords))))))
|
|
|
1683
|
|
|
1684 (defun font-lock-compile-keyword (keyword)
|
|
|
1685 (cond ((nlistp keyword) ; Just MATCHER
|
|
|
1686 (list keyword '(0 font-lock-keyword-face)))
|
|
|
1687 ((eq (car keyword) 'eval) ; Specified (eval . FORM)
|
|
|
1688 (font-lock-compile-keyword (eval (cdr keyword))))
|
|
|
1689 ((numberp (cdr keyword)) ; Specified (MATCHER . MATCH)
|
|
|
1690 (list (car keyword) (list (cdr keyword) 'font-lock-keyword-face)))
|
|
|
1691 ((symbolp (cdr keyword)) ; Specified (MATCHER . FACENAME)
|
|
|
1692 (list (car keyword) (list 0 (cdr keyword))))
|
|
|
1693 ((nlistp (nth 1 keyword)) ; Specified (MATCHER . HIGHLIGHT)
|
|
|
1694 (list (car keyword) (cdr keyword)))
|
|
|
1695 (t ; Hopefully (MATCHER HIGHLIGHT ...)
|
|
|
1696 keyword)))
|
|
|
1697
|
|
460
|
1698 (defun font-lock-eval-keywords (keywords)
|
|
|
1699 ;; Evalulate KEYWORDS if a function (funcall) or variable (eval) name.
|
|
|
1700 (if (listp keywords)
|
|
|
1701 keywords
|
|
|
1702 (font-lock-eval-keywords (if (fboundp keywords)
|
|
|
1703 (funcall keywords)
|
|
|
1704 (eval keywords)))))
|
|
|
1705
|
|
428
|
1706 (defun font-lock-choose-keywords (keywords level)
|
|
|
1707 ;; Return LEVELth element of KEYWORDS. A LEVEL of nil is equal to a
|
|
|
1708 ;; LEVEL of 0, a LEVEL of t is equal to (1- (length KEYWORDS)).
|
|
|
1709 (let ((level (if (not (consp level))
|
|
|
1710 level
|
|
|
1711 (cdr (or (assq major-mode level) (assq t level))))))
|
|
|
1712 (cond ((symbolp keywords)
|
|
|
1713 keywords)
|
|
|
1714 ((numberp level)
|
|
|
1715 (or (nth level keywords) (car (reverse keywords))))
|
|
|
1716 ((eq level t)
|
|
|
1717 (car (reverse keywords)))
|
|
|
1718 (t
|
|
|
1719 (car keywords)))))
|
|
|
1720
|
|
|
1721
|
|
|
1722 ;;; Determining which set of font-lock keywords to use.
|
|
|
1723
|
|
|
1724 (defun font-lock-find-font-lock-defaults (modesym)
|
|
|
1725 ;; Get the defaults based on the major mode.
|
|
|
1726 (let (raw-defaults)
|
|
|
1727 ;; I want a do-while loop!
|
|
|
1728 (while (progn
|
|
|
1729 (setq raw-defaults (get modesym 'font-lock-defaults))
|
|
|
1730 (and raw-defaults (symbolp raw-defaults)
|
|
|
1731 (setq modesym raw-defaults)))
|
|
|
1732 )
|
|
|
1733 raw-defaults))
|
|
|
1734
|
|
|
1735 (defun font-lock-examine-syntax-table ()
|
|
|
1736 ; Computes the value of font-lock-keywords-only for this buffer.
|
|
|
1737 (if (eq (syntax-table) (standard-syntax-table))
|
|
|
1738 ;; Assume that modes which haven't bothered to install their own
|
|
|
1739 ;; syntax table don't do anything syntactically interesting.
|
|
|
1740 ;; Really, the standard-syntax-table shouldn't have comments and
|
|
|
1741 ;; strings in it, but changing that now might break things.
|
|
|
1742 nil
|
|
|
1743 ;; else map over the syntax table looking for strings or comments.
|
|
|
1744 (let (got-one)
|
|
|
1745 ;; XEmacs 20.0 ...
|
|
|
1746 (if (fboundp 'map-syntax-table)
|
|
|
1747 (setq got-one
|
|
|
1748 (map-syntax-table
|
|
|
1749 #'(lambda (key value)
|
|
|
1750 (memq (char-syntax-from-code value)
|
|
|
1751 '(?\" ?\< ?\> ?\$)))
|
|
|
1752 (syntax-table)))
|
|
|
1753 ;; older Emacsen.
|
|
|
1754 (let ((i (1- (length (syntax-table)))))
|
|
|
1755 (while (>= i 0)
|
|
|
1756 (if (memq (char-syntax i) '(?\" ?\< ?\> ?\$))
|
|
|
1757 (setq got-one t i 0))
|
|
|
1758 (setq i (1- i)))))
|
|
|
1759 (set (make-local-variable 'font-lock-keywords-only) (not got-one)))))
|
|
|
1760
|
|
|
1761 ;; font-lock-set-defaults is in fontl-hooks.el.
|
|
|
1762
|
|
|
1763 ;;;###autoload
|
|
|
1764 (defun font-lock-set-defaults-1 (&optional explicit-defaults)
|
|
|
1765 ;; does everything that font-lock-set-defaults does except
|
|
|
1766 ;; enable font-lock-mode. This is called by `font-lock-mode'.
|
|
|
1767 ;; Note that the return value is used!
|
|
|
1768
|
|
|
1769 (if (and font-lock-defaults-computed (not explicit-defaults))
|
|
|
1770 ;; nothing to do.
|
|
|
1771 nil
|
|
|
1772
|
|
|
1773 (or font-lock-keywords
|
|
|
1774 (let* ((defaults (or (and (not (eq t explicit-defaults))
|
|
|
1775 explicit-defaults)
|
|
|
1776 ;; in case modes decide to set
|
|
|
1777 ;; `font-lock-defaults' themselves,
|
|
|
1778 ;; as in FSF Emacs.
|
|
|
1779 font-lock-defaults
|
|
|
1780 (font-lock-find-font-lock-defaults major-mode)))
|
|
|
1781 (keywords (font-lock-choose-keywords
|
|
|
1782 (nth 0 defaults) font-lock-maximum-decoration)))
|
|
460
|
1783
|
|
428
|
1784 ;; Keywords?
|
|
|
1785 (setq font-lock-keywords (if (fboundp keywords)
|
|
|
1786 (funcall keywords)
|
|
|
1787 (eval keywords)))
|
|
|
1788 (or font-lock-keywords
|
|
|
1789 ;; older way:
|
|
|
1790 ;; try to look for a variable `foo-mode-font-lock-keywords',
|
|
|
1791 ;; or similar.
|
|
|
1792 (let ((major (symbol-name major-mode))
|
|
|
1793 (try #'(lambda (n)
|
|
|
1794 (if (stringp n) (setq n (intern-soft n)))
|
|
|
1795 (if (and n
|
|
|
1796 (boundp n))
|
|
|
1797 n
|
|
|
1798 nil))))
|
|
|
1799 (setq font-lock-keywords
|
|
|
1800 (symbol-value
|
|
|
1801 (or (funcall try (get major-mode 'font-lock-keywords))
|
|
|
1802 (funcall try (concat major "-font-lock-keywords"))
|
|
|
1803 (funcall try (and (string-match "-mode\\'" major)
|
|
|
1804 (concat (substring
|
|
|
1805 major 0
|
|
|
1806 (match-beginning 0))
|
|
|
1807 "-font-lock-keywords")))
|
|
|
1808 'font-lock-keywords)))))
|
|
|
1809
|
|
|
1810 ;; Case fold?
|
|
|
1811 (if (>= (length defaults) 3)
|
|
|
1812 (setq font-lock-keywords-case-fold-search (nth 2 defaults))
|
|
|
1813 ;; older way:
|
|
|
1814 ;; look for a property 'font-lock-keywords-case-fold-search on
|
|
|
1815 ;; the major-mode symbol.
|
|
|
1816 (let* ((nonexist (make-symbol ""))
|
|
|
1817 (value (get major-mode 'font-lock-keywords-case-fold-search
|
|
|
1818 nonexist)))
|
|
|
1819 (if (not (eq nonexist value))
|
|
|
1820 (setq font-lock-keywords-case-fold-search value))))
|
|
|
1821
|
|
|
1822 ;; Syntactic?
|
|
|
1823 (if (>= (length defaults) 2)
|
|
|
1824 (setq font-lock-keywords-only (nth 1 defaults))
|
|
|
1825 ;; older way:
|
|
|
1826 ;; cleverly examine the syntax table.
|
|
|
1827 (font-lock-examine-syntax-table))
|
|
|
1828
|
|
|
1829 ;; Syntax table?
|
|
|
1830 (if (nth 3 defaults)
|
|
|
1831 (let ((slist (nth 3 defaults)))
|
|
|
1832 (setq font-lock-syntax-table
|
|
|
1833 (copy-syntax-table (syntax-table)))
|
|
|
1834 (while slist
|
|
|
1835 (modify-syntax-entry (car (car slist)) (cdr (car slist))
|
|
|
1836 font-lock-syntax-table)
|
|
|
1837 (setq slist (cdr slist)))))
|
|
|
1838
|
|
|
1839 ;; Syntax function?
|
|
|
1840 (cond (defaults
|
|
|
1841 (setq font-lock-beginning-of-syntax-function
|
|
|
1842 (nth 4 defaults)))
|
|
|
1843 (t
|
|
|
1844 ;; older way:
|
|
|
1845 ;; defaults not specified at all, so use `beginning-of-defun'.
|
|
|
1846 (setq font-lock-beginning-of-syntax-function
|
|
|
1847 'beginning-of-defun)))))
|
|
|
1848
|
|
460
|
1849 (setq font-lock-cache-position (make-marker))
|
|
428
|
1850 (setq font-lock-defaults-computed t)))
|
|
|
1851
|
|
|
1852
|
|
|
1853 ;;;;;;;;;;;;;;;;;;;;;; keywords ;;;;;;;;;;;;;;;;;;;;;;
|
|
|
1854
|
|
|
1855 ;;; Various major-mode interfaces.
|
|
|
1856 ;;; Probably these should go in with the source of the respective major modes.
|
|
|
1857
|
|
|
1858 ;; The defaults and keywords listed here should perhaps be moved into
|
|
|
1859 ;; mode-specific files.
|
|
|
1860
|
|
|
1861 ;; For C and Lisp modes we use `beginning-of-defun', rather than nil,
|
|
|
1862 ;; for SYNTAX-BEGIN. Thus the calculation of the cache is usually
|
|
|
1863 ;; faster but not infallible, so we risk mis-fontification. --sm.
|
|
|
1864
|
|
|
1865 (put 'c-mode 'font-lock-defaults
|
|
|
1866 '((c-font-lock-keywords
|
|
|
1867 c-font-lock-keywords-1 c-font-lock-keywords-2 c-font-lock-keywords-3)
|
|
|
1868 nil nil ((?_ . "w")) beginning-of-defun))
|
|
|
1869 (put 'c++-c-mode 'font-lock-defaults 'c-mode)
|
|
|
1870 (put 'elec-c-mode 'font-lock-defaults 'c-mode)
|
|
|
1871
|
|
|
1872 (put 'c++-mode 'font-lock-defaults
|
|
|
1873 '((c++-font-lock-keywords
|
|
|
1874 c++-font-lock-keywords-1 c++-font-lock-keywords-2
|
|
|
1875 c++-font-lock-keywords-3)
|
|
|
1876 nil nil ((?_ . "w") (?~ . "w")) beginning-of-defun))
|
|
|
1877
|
|
|
1878 (put 'java-mode 'font-lock-defaults
|
|
|
1879 '((java-font-lock-keywords
|
|
|
1880 java-font-lock-keywords-1 java-font-lock-keywords-2
|
|
|
1881 java-font-lock-keywords-3)
|
|
|
1882 nil nil ((?_ . "w")) beginning-of-defun
|
|
|
1883 (font-lock-mark-block-function . mark-defun)))
|
|
|
1884
|
|
|
1885 (put 'lisp-mode 'font-lock-defaults
|
|
|
1886 '((lisp-font-lock-keywords
|
|
|
1887 lisp-font-lock-keywords-1 lisp-font-lock-keywords-2)
|
|
|
1888 nil nil
|
|
|
1889 ((?: . "w") (?- . "w") (?* . "w") (?+ . "w") (?. . "w") (?< . "w")
|
|
|
1890 (?> . "w") (?= . "w") (?! . "w") (?? . "w") (?$ . "w") (?% . "w")
|
|
|
1891 (?_ . "w") (?& . "w") (?~ . "w") (?^ . "w") (?/ . "w"))
|
|
|
1892 beginning-of-defun))
|
|
|
1893 (put 'emacs-lisp-mode 'font-lock-defaults 'lisp-mode)
|
|
|
1894 (put 'lisp-interaction-mode 'font-lock-defaults 'lisp-mode)
|
|
|
1895
|
|
|
1896 (put 'scheme-mode 'font-lock-defaults
|
|
|
1897 '(scheme-font-lock-keywords
|
|
|
1898 nil t
|
|
|
1899 ((?: . "w") (?- . "w") (?* . "w") (?+ . "w") (?. . "w") (?< . "w")
|
|
|
1900 (?> . "w") (?= . "w") (?! . "w") (?? . "w") (?$ . "w") (?% . "w")
|
|
|
1901 (?_ . "w") (?& . "w") (?~ . "w") (?^ . "w") (?/ . "w"))
|
|
|
1902 beginning-of-defun))
|
|
|
1903 (put 'inferior-scheme-mode 'font-lock-defaults 'scheme-mode)
|
|
|
1904 (put 'scheme-interaction-mode 'font-lock-defaults 'scheme-mode)
|
|
|
1905
|
|
|
1906 (put 'tex-mode 'font-lock-defaults
|
|
|
1907 ;; For TeX modes we could use `backward-paragraph' for the same reason.
|
|
|
1908 '(tex-font-lock-keywords nil nil ((?$ . "\""))))
|
|
|
1909 ;; the nine billion names of TeX mode...
|
|
|
1910 (put 'bibtex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1911 (put 'plain-tex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1912 (put 'slitex-tex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1913 (put 'SliTeX-mode 'font-lock-defaults 'tex-mode)
|
|
|
1914 (put 'slitex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1915 (put 'latex-tex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1916 (put 'LaTex-tex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1917 (put 'latex-mode 'font-lock-defaults 'tex-mode)
|
|
|
1918 (put 'LaTeX-mode 'font-lock-defaults 'tex-mode)
|
|
|
1919 (put 'japanese-LaTeX-mode 'font-lock-defaults 'tex-mode)
|
|
|
1920 (put 'japanese-SliTeX-mode 'font-lock-defaults 'tex-mode)
|
|
|
1921 (put 'FoilTeX-mode 'font-lock-defaults 'tex-mode)
|
|
|
1922 (put 'LATeX-MoDe 'font-lock-defaults 'tex-mode)
|
|
|
1923 (put 'lATEx-mODe 'font-lock-defaults 'tex-mode)
|
|
|
1924 ;; ok, this is getting a bit silly ...
|
|
|
1925 (put 'eDOm-xETAl 'font-lock-defaults 'tex-mode)
|
|
|
1926
|
|
|
1927 ;;; Various regexp information shared by several modes.
|
|
|
1928 ;;; Information specific to a single mode should go in its load library.
|
|
|
1929
|
|
|
1930 (defconst lisp-font-lock-keywords-1
|
|
|
1931 (list
|
|
|
1932 ;; Anything not a variable or type declaration is fontified as a function.
|
|
|
1933 ;; It would be cleaner to allow preceding whitespace, but it would also be
|
|
|
1934 ;; about five times slower.
|
|
|
1935 (list (concat "^(\\(def\\("
|
|
|
1936 ;; Variable declarations.
|
|
|
1937 "\\(const\\(\\|ant\\)\\|ine-key\\(\\|-after\\)\\|var\\|custom\\)\\|"
|
|
|
1938 ;; Structure declarations.
|
|
|
1939 "\\(class\\|struct\\|type\\)\\|"
|
|
|
1940 ;; Everything else is a function declaration.
|
|
|
1941 "\\([^ \t\n\(\)]+\\)"
|
|
|
1942 "\\)\\)\\>"
|
|
|
1943 ;; Any whitespace and declared object.
|
|
|
1944 "[ \t'\(]*"
|
|
|
1945 "\\([^ \t\n\)]+\\)?")
|
|
|
1946 '(1 font-lock-keyword-face)
|
|
|
1947 '(8 (cond ((match-beginning 3) 'font-lock-variable-name-face)
|
|
|
1948 ((match-beginning 6) 'font-lock-type-face)
|
|
|
1949 (t 'font-lock-function-name-face))
|
|
|
1950 nil t))
|
|
|
1951 )
|
|
|
1952 "Subdued level highlighting Lisp modes.")
|
|
|
1953
|
|
|
1954 (defconst lisp-font-lock-keywords-2
|
|
|
1955 (append lisp-font-lock-keywords-1
|
|
|
1956 (list
|
|
|
1957 ;;
|
|
|
1958 ;; Control structures. ELisp and CLisp combined.
|
|
|
1959 ;;
|
|
|
1960 (cons
|
|
|
1961 (concat
|
|
|
1962 "(\\("
|
|
442
|
1963 ;; beginning of generated stuff
|
|
|
1964 ;; to regenerate, use the regexp-opt below, then delete the outermost
|
|
|
1965 ;; grouping, then use the macro below to break up the string.
|
|
|
1966 ;; (regexp-opt
|
|
|
1967 ;; '("cond" "if" "while" "let" "let*" "prog" "progn" "prog1"
|
|
|
1968 ;; "prog2" "progv" "catch" "throw" "save-restriction"
|
|
|
1969 ;; "save-excursion" "save-window-excursion"
|
|
|
1970 ;; "save-current-buffer" "with-current-buffer"
|
|
|
1971 ;; "save-selected-window" "with-selected-window"
|
|
|
1972 ;; "save-selected-frame" "with-selected-frame"
|
|
|
1973 ;; "with-temp-file" "with-temp-buffer" "with-output-to-string"
|
|
|
1974 ;; "with-string-as-buffer-contents"
|
|
|
1975 ;; "save-match-data" "unwind-protect" "call-with-condition-handler"
|
|
|
1976 ;; "condition-case" "track-mouse" "autoload"
|
|
|
1977 ;; "eval-after-load" "eval-and-compile" "eval-when-compile"
|
|
|
1978 ;; "when" "unless" "do" "dolist" "dotimes" "flet" "labels"
|
|
|
1979 ;; "lambda" "block" "return" "return-from" "loop") t)
|
|
|
1980 ;; (setq last-kbd-macro
|
|
|
1981 ;; (read-kbd-macro "\" C-7 C-1 <right> C-r \\\\| 3*<right> \" RET"))
|
|
|
1982 "autoload\\|block\\|c\\(?:a\\(?:ll-with-condition-handler\\|tch\\)\\|"
|
|
|
1983 "ond\\(?:ition-case\\)?\\)\\|do\\(?:list\\|times\\)?\\|"
|
|
|
1984 "eval-\\(?:a\\(?:fter-load\\|nd-compile\\)\\|when-compile\\)\\|flet\\|"
|
|
|
1985 "if\\|l\\(?:a\\(?:bels\\|mbda\\)\\|et\\*?\\|oop\\)\\|prog[12nv]?\\|"
|
|
|
1986 "return\\(?:-from\\)?\\|save-\\(?:current-buffer\\|excursion\\|"
|
|
|
1987 "match-data\\|restriction\\|selected-\\(?:frame\\|window\\)\\|"
|
|
|
1988 "window-excursion\\)\\|t\\(?:hrow\\|rack-mouse\\)\\|un\\(?:less\\|"
|
|
|
1989 "wind-protect\\)\\|w\\(?:h\\(?:en\\|ile\\)\\|ith-\\(?:current-buffer\\|"
|
|
|
1990 "output-to-string\\|s\\(?:elected-\\(?:frame\\|window\\)\\|"
|
|
|
1991 "tring-as-buffer-contents\\)\\|temp-\\(?:buffer\\|file\\)\\)\\)"
|
|
|
1992 ;; end of generated stuff
|
|
428
|
1993 "\\)\\>") 1)
|
|
|
1994 ;;
|
|
|
1995 ;; Feature symbols as references.
|
|
|
1996 '("(\\(featurep\\|provide\\|require\\)\\>[ \t']*\\(\\sw+\\)?"
|
|
|
1997 (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
|
|
|
1998 ;;
|
|
|
1999 ;; Words inside \\[] tend to be for `substitute-command-keys'.
|
|
|
2000 '("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-reference-face prepend)
|
|
|
2001 ;;
|
|
|
2002 ;; Words inside `' tend to be symbol names.
|
|
|
2003 '("`\\(\\sw\\sw+\\)'" 1 font-lock-reference-face prepend)
|
|
|
2004 ;;
|
|
|
2005 ;; CLisp `:' keywords as references.
|
|
|
2006 '("\\<:\\sw+\\>" 0 font-lock-reference-face prepend)
|
|
|
2007 ;;
|
|
|
2008 ;; ELisp and CLisp `&' keywords as types.
|
|
|
2009 '("\\<\\&\\(optional\\|rest\\|whole\\)\\>" . font-lock-type-face)
|
|
|
2010 ))
|
|
|
2011 "Gaudy level highlighting for Lisp modes.")
|
|
|
2012
|
|
|
2013 (defvar lisp-font-lock-keywords lisp-font-lock-keywords-1
|
|
|
2014 "Default expressions to highlight in Lisp modes.")
|
|
|
2015
|
|
|
2016 ;; The previous version, before replacing it with the FSF version.
|
|
|
2017 ;(defconst lisp-font-lock-keywords-1 (purecopy
|
|
|
2018 ; '(;;
|
|
|
2019 ; ;; highlight defining forms. This doesn't work too nicely for
|
|
|
2020 ; ;; (defun (setf foo) ...) but it does work for (defvar foo) which
|
|
|
2021 ; ;; is more important.
|
|
|
2022 ; ("^(def[-a-z]+\\s +\\([^ \t\n\)]+\\)" 1 font-lock-function-name-face)
|
|
|
2023 ; ;;
|
|
|
2024 ; ;; highlight CL keywords (three clauses seems faster than one)
|
|
|
2025 ; ("\\s :\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
|
|
|
2026 ; ("(:\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
|
|
|
2027 ; ("':\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
|
|
|
2028 ; ;;
|
|
|
2029 ; ;; this is highlights things like (def* (setf foo) (bar baz)), but may
|
|
|
2030 ; ;; be slower (I haven't really thought about it)
|
|
|
2031 ;; ("^(def[-a-z]+\\s +\\(\\s(\\S)*\\s)\\|\\S(\\S *\\)"
|
|
|
2032 ;; 1 font-lock-function-name-face)
|
|
|
2033 ; ))
|
|
|
2034 ; "For consideration as a value of `lisp-font-lock-keywords'.
|
|
|
2035 ;This does fairly subdued highlighting.")
|
|
|
2036 ;
|
|
|
2037 ;(defconst lisp-font-lock-keywords-2 (purecopy
|
|
|
2038 ; (append lisp-font-lock-keywords-1
|
|
|
2039 ; '(;;
|
|
|
2040 ; ;; Highlight control structures
|
|
|
2041 ; ("(\\(cond\\|if\\|when\\|unless\\|[ec]?\\(type\\)?case\\)[ \t\n]" . 1)
|
|
|
2042 ; ("(\\(while\\|do\\|let\\*?\\|flet\\|labels\\|prog[nv12*]?\\)[ \t\n]" . 1)
|
|
|
2043 ; ("(\\(do\\*\\|dotimes\\|dolist\\|loop\\)[ \t\n]" . 1)
|
|
|
2044 ; ("(\\(catch\\|\\throw\\|block\\|return\\|return-from\\)[ \t\n]" . 1)
|
|
|
2045 ; ("(\\(save-restriction\\|save-window-restriction\\)[ \t\n]" . 1)
|
|
|
2046 ; ("(\\(save-excursion\\|unwind-protect\\|condition-case\\)[ \t\n]" . 1)
|
|
|
2047 ; ;;
|
|
|
2048 ; ;; highlight function names in emacs-lisp docstrings (in the syntax
|
|
|
2049 ; ;; that substitute-command-keys understands.)
|
|
|
2050 ; ("\\\\\\\\\\[\\([^]\\\n]+\\)]" 1 font-lock-keyword-face t)
|
|
|
2051 ; ;;
|
|
|
2052 ; ;; highlight words inside `' which tend to be function names
|
|
|
2053 ; ("`\\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)'"
|
|
|
2054 ; 1 font-lock-keyword-face t)
|
|
|
2055 ; )))
|
|
|
2056 ; "For consideration as a value of `lisp-font-lock-keywords'.
|
|
|
2057 ;
|
|
|
2058 ;This does a lot more highlighting.")
|
|
|
2059
|
|
|
2060 (defvar scheme-font-lock-keywords
|
|
|
2061 (eval-when-compile
|
|
|
2062 (list
|
|
|
2063 ;;
|
|
|
2064 ;; Declarations. Hannes Haug <hannes.haug@student.uni-tuebingen.de> says
|
|
|
2065 ;; this works for SOS, STklos, SCOOPS, Meroon and Tiny CLOS.
|
|
|
2066 (list (concat "(\\(define\\("
|
|
|
2067 ;; Function names.
|
|
|
2068 "\\(\\|-\\(generic\\(\\|-procedure\\)\\|method\\)\\)\\|"
|
|
|
2069 ;; Macro names, as variable names. A bit dubious, this.
|
|
|
2070 "\\(-syntax\\)\\|"
|
|
|
2071 ;; Class names.
|
|
|
2072 "\\(-class\\)"
|
|
|
2073 "\\)\\)\\>"
|
|
|
2074 ;; Any whitespace and declared object.
|
|
|
2075 "[ \t]*(?"
|
|
|
2076 "\\(\\sw+\\)?")
|
|
|
2077 '(1 font-lock-keyword-face)
|
|
|
2078 '(8 (cond ((match-beginning 3) 'font-lock-function-name-face)
|
|
|
2079 ((match-beginning 6) 'font-lock-variable-name-face)
|
|
|
2080 (t 'font-lock-type-face))
|
|
|
2081 nil t))
|
|
|
2082 ;;
|
|
|
2083 ;; Control structures.
|
|
|
2084 ;(regexp-opt '("begin" "call-with-current-continuation" "call/cc"
|
|
|
2085 ; "call-with-input-file" "call-with-output-file" "case" "cond"
|
|
|
2086 ; "do" "else" "for-each" "if" "lambda"
|
|
|
2087 ; "let\\*?" "let-syntax" "letrec" "letrec-syntax"
|
|
|
2088 ; ;; Hannes Haug <hannes.haug@student.uni-tuebingen.de> wants:
|
|
|
2089 ; "and" "or" "delay"
|
|
|
2090 ; ;; Stefan Monnier <stefan.monnier@epfl.ch> says don't bother:
|
|
|
2091 ; ;;"quasiquote" "quote" "unquote" "unquote-splicing"
|
|
|
2092 ; "map" "syntax" "syntax-rules"))
|
|
|
2093 (cons
|
|
|
2094 (concat "(\\("
|
|
|
2095 "and\\|begin\\|c\\(a\\(ll\\(-with-\\(current-continuation\\|"
|
|
|
2096 "input-file\\|output-file\\)\\|/cc\\)\\|se\\)\\|ond\\)\\|"
|
|
|
2097 "d\\(elay\\|o\\)\\|else\\|for-each\\|if\\|"
|
|
|
2098 "l\\(ambda\\|et\\(-syntax\\|\\*?\\|rec\\(\\|-syntax\\)\\)\\)\\|"
|
|
|
2099 "map\\|or\\|syntax\\(\\|-rules\\)"
|
|
|
2100 "\\)\\>") 1)
|
|
|
2101 ;;
|
|
|
2102 ;; David Fox <fox@graphics.cs.nyu.edu> for SOS/STklos class specifiers.
|
|
|
2103 '("\\<<\\sw+>\\>" . font-lock-type-face)
|
|
|
2104 ;;
|
|
|
2105 ;; Scheme `:' keywords as references.
|
|
|
2106 '("\\<:\\sw+\\>" . font-lock-reference-face)
|
|
|
2107 ))
|
|
|
2108 "Default expressions to highlight in Scheme modes.")
|
|
|
2109
|
|
|
2110 ;; The previous version, before replacing it with the FSF version.
|
|
|
2111 ;(defconst scheme-font-lock-keywords (purecopy
|
|
|
2112 ; '(("(define[ \t]+(?\\([^ \t\n\)]+\\)" 1 font-lock-function-name-face)
|
|
|
2113 ; ("(\\(cond\\|lambda\\|begin\\|if\\|else\\|case\\|do\\)[ \t\n]" . 1)
|
|
|
2114 ; ("(\\(\\|letrec\\|let\\*?\\|set!\\|and\\|or\\)[ \t\n]" . 1)
|
|
|
2115 ; ("(\\(quote\\|unquote\\|quasiquote\\|unquote-splicing\\)[ \t\n]" . 1)
|
|
|
2116 ; ("(\\(syntax\\|syntax-rules\\|define-syntax\\|let-syntax\\|letrec-syntax\\)[ \t\n]" . 1)))
|
|
|
2117 ; "Expressions to highlight in Scheme buffers.")
|
|
|
2118
|
|
|
2119 (defconst c-font-lock-keywords-1 nil
|
|
|
2120 "Subdued level highlighting for C modes.")
|
|
|
2121
|
|
|
2122 (defconst c-font-lock-keywords-2 nil
|
|
|
2123 "Medium level highlighting for C modes.")
|
|
|
2124
|
|
|
2125 (defconst c-font-lock-keywords-3 nil
|
|
|
2126 "Gaudy level highlighting for C modes.")
|
|
|
2127
|
|
|
2128 (defconst c++-font-lock-keywords-1 nil
|
|
|
2129 "Subdued level highlighting for C++ modes.")
|
|
|
2130
|
|
|
2131 (defconst c++-font-lock-keywords-2 nil
|
|
|
2132 "Medium level highlighting for C++ modes.")
|
|
|
2133
|
|
|
2134 (defconst c++-font-lock-keywords-3 nil
|
|
|
2135 "Gaudy level highlighting for C++ modes.")
|
|
|
2136
|
|
|
2137 (defun font-lock-match-c++-style-declaration-item-and-skip-to-next (limit)
|
|
|
2138 ;; Match, and move over, any declaration/definition item after point.
|
|
|
2139 ;; The expect syntax of an item is "word" or "word::word", possibly ending
|
|
|
2140 ;; with optional whitespace and a "(". Everything following the item (but
|
|
|
2141 ;; belonging to it) is expected to by skip-able by `forward-sexp', and items
|
|
|
2142 ;; are expected to be separated with a "," or ";".
|
|
|
2143 (if (looking-at "[ \t*&]*\\(\\(?:\\sw\\|\\s_\\)+\\)\\(::\\(\\(?:\\sw\\|\\s_\\)+\\)\\)?[ \t]*\\((\\)?")
|
|
|
2144 (save-match-data
|
|
|
2145 (condition-case nil
|
|
|
2146 (save-restriction
|
|
|
2147 ;; Restrict to the end of line, currently guaranteed to be LIMIT.
|
|
|
2148 (narrow-to-region (point-min) limit)
|
|
|
2149 (goto-char (match-end 1))
|
|
|
2150 ;; Move over any item value, etc., to the next item.
|
|
|
2151 (while (not (looking-at "[ \t]*\\([,;]\\|$\\)"))
|
|
|
2152 (goto-char (or (scan-sexps (point) 1) (point-max))))
|
|
|
2153 (goto-char (match-end 0)))
|
|
|
2154 (error t)))))
|
|
|
2155
|
|
|
2156 (let ((c-keywords
|
|
|
2157 ; ("break" "continue" "do" "else" "for" "if" "return" "switch" "while")
|
|
|
2158 "break\\|continue\\|do\\|else\\|for\\|if\\|return\\|switch\\|while")
|
|
|
2159 (c-type-types
|
|
|
2160 ; ("auto" "extern" "register" "static" "typedef" "struct" "union" "enum"
|
|
|
2161 ; "signed" "unsigned" "short" "long" "int" "char" "float" "double"
|
|
|
2162 ; "void" "volatile" "const")
|
|
|
2163 (concat "auto\\|c\\(har\\|onst\\)\\|double\\|e\\(num\\|xtern\\)\\|"
|
|
|
2164 "float\\|int\\|long\\|register\\|"
|
|
|
2165 "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|typedef\\|"
|
|
|
2166 "un\\(ion\\|signed\\)\\|vo\\(id\\|latile\\)")) ; 6 ()s deep.
|
|
|
2167 (c++-keywords
|
|
|
2168 ; ("break" "continue" "do" "else" "for" "if" "return" "switch" "while"
|
|
|
2169 ; "asm" "catch" "delete" "new" "operator" "sizeof" "this" "throw" "try"
|
|
448
|
2170 ; "protected" "private" "public" "const_cast" "dynamic_cast" "reinterpret_cast"
|
|
|
2171 ; "static_cast" "and" "bitor" "or" "xor" "compl" "bitand" "and_eq"
|
|
|
2172 ; "or_eq" "xor_eq" "not" "not_eq" "typeid" "false" "true")
|
|
|
2173 (concat "a\\(nd\\(\\|_eq\\)\\|sm\\)\\|"
|
|
|
2174 "b\\(it\\(or\\|and\\)\\|reak\\)\\|"
|
|
|
2175 "c\\(atch\\|o\\(mpl\\|n\\(tinue\\|st_cast\\)\\)\\)\\|"
|
|
|
2176 "d\\(elete\\|o\\|ynamic_cast\\)\\|"
|
|
|
2177 "else\\|"
|
|
|
2178 "f\\(alse\\|or\\)\\|if\\|"
|
|
|
2179 "n\\(ew\\|ot\\(\\|_eq\\)\\)\\|"
|
|
|
2180 "p\\(r\\(ivate\\|otected\\)\\|ublic\\)\\|"
|
|
|
2181 "or\\(\\|_eq\\)\\|"
|
|
|
2182 "re\\(interpret_cast\\|turn\\)\\|"
|
|
|
2183 "s\\(izeof\\|tatic_cast\\|witch\\)\\|"
|
|
|
2184 "t\\(h\\(is\\|row\\)\\|r\\(ue\\|y\\)\\|ypeid\\)\\|"
|
|
|
2185 "xor\\(\\|_eq\\)\\|while"))
|
|
428
|
2186 (c++-type-types
|
|
|
2187 ; ("auto" "extern" "register" "static" "typedef" "struct" "union" "enum"
|
|
|
2188 ; "signed" "unsigned" "short" "long" "int" "char" "float" "double"
|
|
|
2189 ; "void" "volatile" "const" "class" "inline" "friend" "bool"
|
|
448
|
2190 ; "virtual" "complex" "template" "explicit" "mutable" "export" "namespace"
|
|
|
2191 ; "using" "typename" "wchar_t")
|
|
428
|
2192 (concat "auto\\|bool\\|c\\(har\\|lass\\|o\\(mplex\\|nst\\)\\)\\|"
|
|
448
|
2193 "double\\|"
|
|
|
2194 "e\\(num\\|x\\(p\\(licit\\|ort\\)\\|tern\\)\\)\\|"
|
|
|
2195 "f\\(loat\\|riend\\)\\|"
|
|
|
2196 "in\\(line\\|t\\)\\|long\\|mutable\\|namespace\\|register\\|"
|
|
428
|
2197 "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|"
|
|
448
|
2198 "t\\(emplate\\|ype\\(def\\|name\\)\\)\\|"
|
|
|
2199 "u\\(\\(n\\(ion\\|signed\\)\\|sing\\)\\)\\|"
|
|
|
2200 "v\\(irtual\\|o\\(id\\|latile\\)\\)\\|"
|
|
|
2201 "wchar_t")) ; 11 ()s deep.
|
|
428
|
2202 (ctoken "\\(\\sw\\|\\s_\\|[:~*&]\\)+")
|
|
|
2203 )
|
|
|
2204 (setq c-font-lock-keywords-1
|
|
|
2205 (list
|
|
|
2206 ;;
|
|
|
2207 ;; These are all anchored at the beginning of line for speed.
|
|
|
2208 ;;
|
|
|
2209 ;; Fontify function name definitions (GNU style; without type on line).
|
|
|
2210
|
|
|
2211 ;; In FSF this has the simpler definition of "\\sw+" for ctoken.
|
|
|
2212 ;; I'm not sure if ours is more correct.
|
|
|
2213 ;; This is a subset of the next rule, and is slower when present. --dmoore
|
|
|
2214 ;; (list (concat "^\\(" ctoken "\\)[ \t]*(") 1 'font-lock-function-name-face)
|
|
|
2215 ;;
|
|
|
2216 ;; fontify the names of functions being defined.
|
|
|
2217 ;; FSF doesn't have this but I think it should be fast for us because
|
|
|
2218 ;; our regexp routines are more intelligent than FSF's about handling
|
|
|
2219 ;; anchored-at-newline. (When I added this hack in regex.c, it halved
|
|
|
2220 ;; the time to do the regexp phase of font-lock for a C file!) Not
|
|
|
2221 ;; including this discriminates against those who don't follow the
|
|
|
2222 ;; GNU coding style. --ben
|
|
|
2223 ;; x?x?x?y?z should always be: (x(xx?)?)?y?z --dmoore
|
|
|
2224 (list (concat
|
|
|
2225 "^\\("
|
|
|
2226 "\\(" ctoken "[ \t]+\\)" ; type specs; there can be no
|
|
|
2227 "\\("
|
|
|
2228 "\\(" ctoken "[ \t]+\\)" ; more than 3 tokens, right?
|
|
|
2229 "\\(" ctoken "[ \t]+\\)"
|
|
|
2230 "?\\)?\\)?"
|
|
|
2231 "\\([*&]+[ \t]*\\)?" ; pointer
|
|
|
2232 "\\(" ctoken "\\)[ \t]*(") ; name
|
|
|
2233 10 'font-lock-function-name-face)
|
|
|
2234 ;;
|
|
|
2235 ;; This is faster but not by much. I don't see why not.
|
|
|
2236 ;(list (concat "^\\(" ctoken "\\)[ \t]*(") 1 'font-lock-function-name-face)
|
|
|
2237 ;;
|
|
|
2238 ;; Added next two; they're both jolly-good fastmatch candidates so
|
|
|
2239 ;; should be fast. --ben
|
|
|
2240 ;;
|
|
|
2241 ;; Fontify structure names (in structure definition form).
|
|
|
2242 (list (concat "^\\(typedef[ \t]+struct\\|struct\\|static[ \t]+struct\\)"
|
|
|
2243 "[ \t]+\\(" ctoken "\\)[ \t]*\\(\{\\|$\\)")
|
|
|
2244 2 'font-lock-function-name-face)
|
|
|
2245 ;;
|
|
|
2246 ;; Fontify case clauses. This is fast because its anchored on the left.
|
|
|
2247 '("case[ \t]+\\(\\(\\sw\\|\\s_\\)+\\)[ \t]+:". 1)
|
|
|
2248 ;;
|
|
|
2249 '("\\<\\(default\\):". 1)
|
|
|
2250 ;; Fontify filenames in #include <...> preprocessor directives as strings.
|
|
|
2251 '("^#[ \t]*include[ \t]+\\(<[^>\"\n]+>\\)" 1 font-lock-string-face)
|
|
|
2252 ;;
|
|
|
2253 ;; Fontify function macro names.
|
|
|
2254 '("^#[ \t]*define[ \t]+\\(\\(\\sw+\\)(\\)" 2 font-lock-function-name-face)
|
|
|
2255 ;;
|
|
|
2256 ;; Fontify symbol names in #if ... defined preprocessor directives.
|
|
|
2257 '("^#[ \t]*if\\>"
|
|
|
2258 ("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
|
|
|
2259 (1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t)))
|
|
|
2260 ;;
|
|
|
2261 ;; Fontify symbol names in #elif ... defined preprocessor directives.
|
|
|
2262 '("^#[ \t]*elif\\>"
|
|
|
2263 ("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
|
|
|
2264 (1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t)))
|
|
|
2265 ;;
|
|
|
2266 ;; Fontify otherwise as symbol names, and the preprocessor directive names.
|
|
|
2267 '("^\\(#[ \t]*[a-z]+\\)\\>[ \t]*\\(\\sw+\\)?"
|
|
|
2268 (1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t))
|
|
|
2269 ))
|
|
|
2270
|
|
|
2271 (setq c-font-lock-keywords-2
|
|
|
2272 (append c-font-lock-keywords-1
|
|
|
2273 (list
|
|
|
2274 ;;
|
|
|
2275 ;; Simple regexps for speed.
|
|
|
2276 ;;
|
|
|
2277 ;; Fontify all type specifiers.
|
|
|
2278 (cons (concat "\\<\\(" c-type-types "\\)\\>") 'font-lock-type-face)
|
|
|
2279 ;;
|
|
|
2280 ;; Fontify all builtin keywords (except case, default and goto; see below).
|
|
|
2281 (cons (concat "\\<\\(" c-keywords "\\)\\>") 'font-lock-keyword-face)
|
|
|
2282 ;;
|
|
|
2283 ;; Fontify case/goto keywords and targets, and case default/goto tags.
|
|
|
2284 '("\\<\\(case\\|goto\\)\\>[ \t]*\\([^ \t\n:;]+\\)?"
|
|
|
2285 (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
|
|
|
2286 '("^[ \t]*\\(\\sw+\\)[ \t]*:" 1 font-lock-reference-face)
|
|
|
2287 )))
|
|
|
2288
|
|
|
2289 (setq c-font-lock-keywords-3
|
|
|
2290 (append c-font-lock-keywords-2
|
|
|
2291 ;;
|
|
|
2292 ;; More complicated regexps for more complete highlighting for types.
|
|
|
2293 ;; We still have to fontify type specifiers individually, as C is so hairy.
|
|
|
2294 (list
|
|
|
2295 ;;
|
|
|
2296 ;; Fontify all storage classes and type specifiers, plus their items.
|
|
|
2297 (list (concat "\\<\\(" c-type-types "\\)\\>"
|
|
|
2298 "\\([ \t*&]+\\sw+\\>\\)*")
|
|
|
2299 ;; Fontify each declaration item.
|
|
|
2300 '(font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2301 ;; Start with point after all type specifiers.
|
|
|
2302 (goto-char (or (match-beginning 8) (match-end 1)))
|
|
|
2303 ;; Finish with point after first type specifier.
|
|
|
2304 (goto-char (match-end 1))
|
|
|
2305 ;; Fontify as a variable or function name.
|
|
|
2306 (1 (if (match-beginning 4)
|
|
|
2307 font-lock-function-name-face
|
|
|
2308 font-lock-variable-name-face))))
|
|
|
2309 ;;
|
|
|
2310 ;; Fontify structures, or typedef names, plus their items.
|
|
|
2311 '("\\(}\\)[ \t*]*\\sw"
|
|
|
2312 (font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2313 (goto-char (match-end 1)) nil
|
|
|
2314 (1 (if (match-beginning 4)
|
|
|
2315 font-lock-function-name-face
|
|
|
2316 font-lock-variable-name-face))))
|
|
|
2317 ;;
|
|
|
2318 ;; Fontify anything at beginning of line as a declaration or definition.
|
|
|
2319 '("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
|
|
|
2320 (1 font-lock-type-face)
|
|
|
2321 (font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2322 (goto-char (or (match-beginning 2) (match-end 1))) nil
|
|
|
2323 (1 (if (match-beginning 4)
|
|
|
2324 font-lock-function-name-face
|
|
|
2325 font-lock-variable-name-face))))
|
|
|
2326 )))
|
|
|
2327
|
|
|
2328 (setq c++-font-lock-keywords-1
|
|
|
2329 (append
|
|
|
2330 ;;
|
|
|
2331 ;; The list `c-font-lock-keywords-1' less that for function names.
|
|
|
2332 ;; the simple function form regexp has been removed. --dmoore
|
|
|
2333 ;;(cdr c-font-lock-keywords-1)
|
|
|
2334 c-font-lock-keywords-1
|
|
|
2335 ;;
|
|
|
2336 ;; Fontify function name definitions, possibly incorporating class name.
|
|
|
2337 (list
|
|
|
2338 '("^\\(\\sw+\\)\\(::\\(\\sw+\\)\\)?[ \t]*("
|
|
|
2339 (1 (if (match-beginning 2)
|
|
|
2340 font-lock-type-face
|
|
|
2341 font-lock-function-name-face))
|
|
|
2342 (3 (if (match-beginning 2) font-lock-function-name-face) nil t))
|
|
|
2343 )))
|
|
|
2344
|
|
|
2345 (setq c++-font-lock-keywords-2
|
|
|
2346 (append c++-font-lock-keywords-1
|
|
|
2347 (list
|
|
|
2348 ;;
|
|
|
2349 ;; The list `c-font-lock-keywords-2' for C++ plus operator overloading.
|
|
|
2350 (cons (concat "\\<\\(" c++-type-types "\\)\\>") 'font-lock-type-face)
|
|
|
2351 ;;
|
|
|
2352 ;; Fontify operator function name overloading.
|
|
|
2353 '("\\<\\(operator\\)\\>[ \t]*\\([][)(><!=+-][][)(><!=+-]?\\)?"
|
|
|
2354 (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
|
|
|
2355 ;;
|
|
|
2356 ;; Fontify case/goto keywords and targets, and case default/goto tags.
|
|
|
2357 '("\\<\\(case\\|goto\\)\\>[ \t]*\\([^ \t\n:;]+\\)?"
|
|
|
2358 (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
|
|
|
2359 '("^[ \t]*\\(\\sw+\\)[ \t]*:[^:]" 1 font-lock-reference-face)
|
|
|
2360 ;;
|
|
|
2361 ;; Fontify other builtin keywords.
|
|
|
2362 (cons (concat "\\<\\(" c++-keywords "\\)\\>") 'font-lock-keyword-face)
|
|
|
2363 )))
|
|
|
2364
|
|
|
2365 (setq c++-font-lock-keywords-3
|
|
|
2366 (append c++-font-lock-keywords-2
|
|
|
2367 ;;
|
|
|
2368 ;; More complicated regexps for more complete highlighting for types.
|
|
|
2369 (list
|
|
|
2370 ;;
|
|
|
2371 ;; Fontify all storage classes and type specifiers, plus their items.
|
|
|
2372 (list (concat "\\<\\(" c++-type-types "\\)\\>"
|
|
|
2373 "\\([ \t*&]+\\sw+\\>\\)*")
|
|
|
2374 ;; Fontify each declaration item.
|
|
|
2375 '(font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2376 ;; Start with point after all type specifiers.
|
|
|
2377 (goto-char (or (match-beginning 13) (match-end 1)))
|
|
|
2378 ;; Finish with point after first type specifier.
|
|
|
2379 (goto-char (match-end 1))
|
|
|
2380 ;; Fontify as a variable or function name.
|
|
|
2381 (1 (cond ((match-beginning 2) 'font-lock-type-face)
|
|
|
2382 ((match-beginning 4) 'font-lock-function-name-face)
|
|
|
2383 (t 'font-lock-variable-name-face)))
|
|
|
2384 (3 (if (match-beginning 4)
|
|
|
2385 'font-lock-function-name-face
|
|
|
2386 'font-lock-variable-name-face) nil t)))
|
|
|
2387 ;;
|
|
|
2388 ;; Fontify structures, or typedef names, plus their items.
|
|
|
2389 '("\\(}\\)[ \t*]*\\sw"
|
|
|
2390 (font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2391 (goto-char (match-end 1)) nil
|
|
|
2392 (1 (if (match-beginning 4)
|
|
|
2393 font-lock-function-name-face
|
|
|
2394 font-lock-variable-name-face))))
|
|
|
2395 ;;
|
|
|
2396 ;; Fontify anything at beginning of line as a declaration or definition.
|
|
|
2397 '("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
|
|
|
2398 (1 font-lock-type-face)
|
|
|
2399 (font-lock-match-c++-style-declaration-item-and-skip-to-next
|
|
|
2400 (goto-char (or (match-beginning 2) (match-end 1))) nil
|
|
|
2401 (1 (cond ((match-beginning 2) 'font-lock-type-face)
|
|
|
2402 ((match-beginning 4) 'font-lock-function-name-face)
|
|
|
2403 (t 'font-lock-variable-name-face)))
|
|
|
2404 (3 (if (match-beginning 4)
|
|
|
2405 'font-lock-function-name-face
|
|
|
2406 'font-lock-variable-name-face) nil t)))
|
|
|
2407 )))
|
|
|
2408 )
|
|
|
2409
|
|
|
2410 (defvar c-font-lock-keywords c-font-lock-keywords-1
|
|
|
2411 "Default expressions to highlight in C mode.")
|
|
|
2412
|
|
|
2413 (defvar c++-font-lock-keywords c++-font-lock-keywords-1
|
|
|
2414 "Default expressions to highlight in C++ mode.")
|
|
|
2415
|
|
|
2416 ;;; Java.
|
|
|
2417
|
|
|
2418 ;; Java support has been written by XEmacs people, and it's apparently
|
|
|
2419 ;; totally divergent from the FSF. I don't know if it's better or
|
|
|
2420 ;; worse, so I'm leaving it in until someone convinces me the FSF
|
|
|
2421 ;; version is better. --hniksic
|
|
|
2422
|
|
|
2423 (defconst java-font-lock-keywords-1 nil
|
|
|
2424 "For consideration as a value of `java-font-lock-keywords'.
|
|
|
2425 This does fairly subdued highlighting.")
|
|
|
2426
|
|
|
2427 (defconst java-font-lock-keywords-2 nil
|
|
|
2428 "For consideration as a value of `java-font-lock-keywords'.
|
|
|
2429 This adds highlighting of types and identifier names.")
|
|
|
2430
|
|
|
2431 (defconst java-font-lock-keywords-3 nil
|
|
|
2432 "For consideration as a value of `java-font-lock-keywords'.
|
|
|
2433 This adds highlighting of Java documentation tags, such as @see.")
|
|
|
2434
|
|
|
2435 (defvar java-font-lock-type-regexp
|
|
|
2436 (concat "\\<\\(boolean\\|byte\\|char\\|double\\|float\\|int"
|
|
|
2437 "\\|long\\|short\\|void\\)\\>")
|
|
|
2438 "Regexp which should match a primitive type.")
|
|
|
2439
|
|
|
2440 (defvar java-font-lock-identifier-regexp
|
|
442
|
2441 (let ((letter "a-zA-Z_$\300-\326\330-\366\370-\377")
|
|
|
2442 (digit "0-9"))
|
|
|
2443 (concat "\\<\\([" letter "][" letter digit "]*\\)\\>"))
|
|
428
|
2444 "Regexp which should match all Java identifiers.")
|
|
|
2445
|
|
|
2446 (defvar java-font-lock-class-name-regexp
|
|
442
|
2447 (let ((capital-letter "A-Z\300-\326\330-\337")
|
|
|
2448 (letter "a-zA-Z_$\300-\326\330-\366\370-\377")
|
|
|
2449 (digit "0-9"))
|
|
|
2450 (concat "\\<\\([" capital-letter "][" letter digit "]*\\)\\>"))
|
|
428
|
2451 "Regexp which should match a class or an interface name.
|
|
|
2452 The name is assumed to begin with a capital letter.")
|
|
|
2453
|
|
|
2454 (let ((java-modifier-regexp
|
|
|
2455 (concat "\\<\\(abstract\\|const\\|final\\|native\\|"
|
|
|
2456 "private\\|protected\\|public\\|"
|
|
|
2457 "static\\|synchronized\\|transient\\|volatile\\)\\>")))
|
|
|
2458
|
|
|
2459 ;; Basic font-lock support:
|
|
|
2460 (setq java-font-lock-keywords-1
|
|
|
2461 (list
|
|
|
2462 ;; Keywords:
|
|
|
2463 (list
|
|
|
2464 (concat
|
|
|
2465 "\\<\\("
|
|
|
2466 "break\\|byvalue\\|"
|
|
|
2467 "case\\|cast\\|catch\\|class\\|continue\\|"
|
|
|
2468 "do\\|else\\|extends\\|"
|
|
|
2469 "finally\\|for\\|future\\|"
|
|
|
2470 "generic\\|goto\\|"
|
|
|
2471 "if\\|implements\\|import\\|"
|
|
|
2472 "instanceof\\|interface\\|"
|
|
|
2473 "new\\|package\\|return\\|switch\\|"
|
|
|
2474 "throws?\\|try\\|while\\)\\>")
|
|
|
2475 1 'font-lock-keyword-face)
|
|
|
2476
|
|
|
2477 ;; Modifiers:
|
|
|
2478 (list java-modifier-regexp 1 font-lock-type-face)
|
|
|
2479
|
|
|
2480 ;; Special constants:
|
|
|
2481 '("\\<\\(this\\|super\\)\\>" (1 font-lock-reference-face))
|
|
|
2482 '("\\<\\(false\\|null\\|true\\)\\>" (1 font-lock-keyword-face))
|
|
|
2483
|
|
|
2484 ;; Class names:
|
|
442
|
2485 (list (concat "\\<\\(class\\|interface\\)\\>\\s *"
|
|
|
2486 java-font-lock-identifier-regexp)
|
|
|
2487 2 'font-lock-function-name-face)
|
|
428
|
2488
|
|
|
2489 ;; Package declarations:
|
|
|
2490 (list (concat "\\<\\(package\\|import\\)\\>\\s *"
|
|
|
2491 java-font-lock-identifier-regexp)
|
|
|
2492 '(2 font-lock-reference-face)
|
|
|
2493 (list (concat
|
|
|
2494 "\\=\\.\\(" java-font-lock-identifier-regexp "\\)")
|
|
|
2495 nil nil '(1 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2496 'font-lock-reference-face
|
|
|
2497 'font-lock-type-face))))
|
|
|
2498
|
|
|
2499 ;; Constructors:
|
|
|
2500 (list (concat
|
|
|
2501 "^\\s *\\(" java-modifier-regexp "\\s +\\)*"
|
|
|
2502 java-font-lock-class-name-regexp "\\s *\(")
|
|
|
2503 (list 3
|
|
|
2504 '(condition-case nil
|
|
|
2505 (save-excursion
|
|
|
2506 (goto-char (scan-sexps (- (match-end 0) 1) 1))
|
|
|
2507 (parse-partial-sexp (point) (point-max) nil t)
|
|
|
2508 (and (looking-at "\\($\\|\\<throws\\>\\|{\\)")
|
|
|
2509 'font-lock-function-name-face))
|
|
|
2510 (error 'font-lock-function-name-face))))
|
|
|
2511
|
|
|
2512 ;; Methods:
|
|
|
2513 (list (concat "\\(" java-font-lock-type-regexp "\\|"
|
|
|
2514 java-font-lock-class-name-regexp "\\)"
|
|
|
2515 "\\s *\\(\\[\\s *\\]\\s *\\)*"
|
|
|
2516 java-font-lock-identifier-regexp "\\s *\(")
|
|
|
2517 5
|
|
|
2518 'font-lock-function-name-face)
|
|
|
2519
|
|
|
2520 ;; Labels:
|
|
|
2521 (list ":"
|
|
|
2522 (list
|
|
|
2523 (concat "^\\s *" java-font-lock-identifier-regexp "\\s *:")
|
|
|
2524 '(beginning-of-line) '(end-of-line)
|
|
|
2525 '(1 font-lock-reference-face)))
|
|
|
2526
|
|
|
2527 ;; `break' and continue' destination labels:
|
|
|
2528 (list (concat "\\<\\(break\\|continue\\)\\>\\s *"
|
|
|
2529 java-font-lock-identifier-regexp)
|
|
|
2530 2 'font-lock-reference-face)
|
|
|
2531
|
|
|
2532 ;; Case statements:
|
|
|
2533 ;; In Java, any constant expression is allowed.
|
|
|
2534 '("\\<case\\>\\s *\\(.*\\):" 1 font-lock-reference-face)))
|
|
|
2535
|
|
|
2536 ;; Types and declared variable names:
|
|
|
2537 (setq java-font-lock-keywords-2
|
|
|
2538 (append
|
|
|
2539
|
|
|
2540 java-font-lock-keywords-1
|
|
|
2541 (list
|
|
|
2542 ;; Keywords followed by a type:
|
|
|
2543 (list (concat "\\<\\(extends\\|instanceof\\|new\\)\\>\\s *"
|
|
|
2544 java-font-lock-identifier-regexp)
|
|
|
2545 '(2 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2546 'font-lock-reference-face 'font-lock-type-face))
|
|
|
2547 (list (concat "\\=\\." java-font-lock-identifier-regexp)
|
|
|
2548 '(goto-char (match-end 0)) nil
|
|
|
2549 '(1 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2550 'font-lock-reference-face 'font-lock-type-face))))
|
|
|
2551
|
|
|
2552 ;; Keywords followed by a type list:
|
|
|
2553 (list (concat "\\<\\(implements\\|throws\\)\\>\\ s*"
|
|
|
2554 java-font-lock-identifier-regexp)
|
|
|
2555 '(2 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2556 font-lock-reference-face font-lock-type-face))
|
|
|
2557 (list (concat "\\=\\(\\.\\|\\s *\\(,\\)\\s *\\)"
|
|
|
2558 java-font-lock-identifier-regexp)
|
|
|
2559 '(goto-char (match-end 0)) nil
|
|
|
2560 '(3 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2561 font-lock-reference-face font-lock-type-face))))
|
|
|
2562
|
|
|
2563 ;; primitive types, can't be confused with anything else.
|
|
|
2564 (list java-font-lock-type-regexp
|
|
|
2565 '(1 font-lock-type-face)
|
|
|
2566 '(font-lock-match-java-declarations
|
|
|
2567 (goto-char (match-end 0))
|
|
|
2568 (goto-char (match-end 0))
|
|
|
2569 (0 font-lock-variable-name-face)))
|
|
|
2570
|
|
|
2571 ;; Declarations, class types and capitalized variables:
|
|
|
2572 ;;
|
|
|
2573 ;; Declarations are easy to recognize. Capitalized words
|
|
|
2574 ;; followed by a closing parenthesis are treated as casts if they
|
|
|
2575 ;; also are followed by an expression. Expressions beginning with
|
|
|
2576 ;; a unary numerical operator, e.g. +, can't be cast to an object
|
|
|
2577 ;; type.
|
|
|
2578 ;;
|
|
|
2579 ;; The path of a fully qualified type, e.g. java.lang.Foo, is
|
|
|
2580 ;; fontified in the reference face.
|
|
|
2581 ;;
|
|
|
2582 ;; An access to a static field, e.g. System.out.println, is
|
|
|
2583 ;; not fontified since it can't be distinguished from the
|
|
|
2584 ;; usage of a capitalized variable, e.g. Foo.out.println.
|
|
|
2585
|
|
|
2586 (list (concat java-font-lock-class-name-regexp
|
|
|
2587 "\\s *\\(\\[\\s *\\]\\s *\\)*"
|
|
|
2588 "\\(\\<\\|$\\|)\\s *\\([\(\"]\\|\\<\\)\\)")
|
|
|
2589 '(1 (save-match-data
|
|
|
2590 (save-excursion
|
|
|
2591 (goto-char
|
|
|
2592 (match-beginning 3))
|
|
|
2593 (if (not (looking-at "\\<instanceof\\>"))
|
|
|
2594 'font-lock-type-face))))
|
|
|
2595 (list (concat "\\=" java-font-lock-identifier-regexp "\\.")
|
|
|
2596 '(progn
|
|
|
2597 (goto-char (match-beginning 0))
|
|
|
2598 (while (or (= (preceding-char) ?.)
|
|
|
2599 (= (char-syntax (preceding-char)) ?w))
|
|
|
2600 (backward-char)))
|
|
|
2601 '(goto-char (match-end 0))
|
|
|
2602 '(1 font-lock-reference-face)
|
|
|
2603 '(0 nil)) ; Workaround for bug in XEmacs.
|
|
|
2604 '(font-lock-match-java-declarations
|
|
|
2605 (goto-char (match-end 1))
|
|
|
2606 (goto-char (match-end 0))
|
|
|
2607 (1 font-lock-variable-name-face))))))
|
|
|
2608
|
|
|
2609 ;; Modifier keywords and Java doc tags
|
|
|
2610 (setq java-font-lock-keywords-3
|
|
|
2611 (append
|
|
|
2612
|
|
|
2613 '(
|
|
|
2614 ;; Feature scoping:
|
|
|
2615 ;; These must come first or the Modifiers from keywords-1 will
|
|
|
2616 ;; catch them. We don't want to use override fontification here
|
|
|
2617 ;; because then these terms will be fontified within comments.
|
|
|
2618 ("\\<private\\>" 0 font-lock-string-face)
|
|
|
2619 ("\\<protected\\>" 0 font-lock-preprocessor-face)
|
|
|
2620 ("\\<public\\>" 0 font-lock-reference-face))
|
|
|
2621 java-font-lock-keywords-2
|
|
|
2622
|
|
|
2623 (list
|
|
|
2624
|
|
442
|
2625 ;; Javadoc tags
|
|
|
2626 '("@\\(author\\|deprecated\\|exception\\|throws\\|param\\|return\\|see\\|since\\|version\\|serial\\|serialData\\|serialField\\)\\s "
|
|
428
|
2627 0 font-lock-keyword-face t)
|
|
|
2628
|
|
|
2629 ;; Doc tag - Parameter identifiers
|
|
|
2630 (list (concat "@param\\s +" java-font-lock-identifier-regexp)
|
|
|
2631 1 'font-lock-variable-name-face t)
|
|
|
2632
|
|
|
2633 ;; Doc tag - Exception types
|
|
442
|
2634 (list (concat "@\\(exception\\|throws\\)\\s +"
|
|
428
|
2635 java-font-lock-identifier-regexp)
|
|
442
|
2636 '(2 (if (equal (char-after (match-end 0)) ?.)
|
|
428
|
2637 font-lock-reference-face font-lock-type-face) t)
|
|
|
2638 (list (concat "\\=\\." java-font-lock-identifier-regexp)
|
|
|
2639 '(goto-char (match-end 0)) nil
|
|
|
2640 '(1 (if (equal (char-after (match-end 0)) ?.)
|
|
|
2641 'font-lock-reference-face 'font-lock-type-face) t)))
|
|
|
2642
|
|
|
2643 ;; Doc tag - Cross-references, usually to methods
|
|
|
2644 '("@see\\s +\\(\\S *[^][ \t\n\r\f(){},.;:]\\)"
|
|
|
2645 1 font-lock-function-name-face t)
|
|
|
2646
|
|
442
|
2647 ;; Doc tag - docRoot (1.3)
|
|
|
2648 '("\\({ *@docRoot *}\\)"
|
|
|
2649 0 font-lock-keyword-face t)
|
|
|
2650 ;; Doc tag - beaninfo, unofficial but widely used, even by Sun
|
|
|
2651 '("\\(@beaninfo\\)"
|
|
428
|
2652 0 font-lock-keyword-face t)
|
|
|
2653 ;; Doc tag - Links
|
|
442
|
2654 '("{ *@link\\s +\\([^}]+\\)}"
|
|
|
2655 0 font-lock-keyword-face t)
|
|
|
2656 ;; Doc tag - Links
|
|
|
2657 '("{ *@link\\s +\\(\\(\\S +\\)\\|\\(\\S +\\s +\\S +\\)\\) *}"
|
|
428
|
2658 1 font-lock-function-name-face t)
|
|
|
2659
|
|
|
2660 )))
|
|
|
2661 )
|
|
|
2662
|
|
|
2663 (defvar java-font-lock-keywords java-font-lock-keywords-1
|
|
|
2664 "Additional expressions to highlight in Java mode.")
|
|
|
2665
|
|
|
2666 ;; Match and move over any declaration/definition item after
|
|
|
2667 ;; point. Does not match items which look like a type declaration
|
|
|
2668 ;; (primitive types and class names, i.e. capitalized words.)
|
|
|
2669 ;; Should the variable name be followed by a comma, we reposition
|
|
|
2670 ;; the cursor to fontify more identifiers.
|
|
|
2671 (defun font-lock-match-java-declarations (limit)
|
|
|
2672 "Match and skip over variable definitions."
|
|
|
2673 (if (looking-at "\\s *\\(\\[\\s *\\]\\s *\\)*")
|
|
|
2674 (goto-char (match-end 0)))
|
|
|
2675 (and
|
|
|
2676 (looking-at java-font-lock-identifier-regexp)
|
|
|
2677 (save-match-data
|
|
|
2678 (not (string-match java-font-lock-type-regexp
|
|
|
2679 (buffer-substring (match-beginning 1)
|
|
|
2680 (match-end 1)))))
|
|
|
2681 (save-match-data
|
|
|
2682 (save-excursion
|
|
|
2683 (goto-char (match-beginning 1))
|
|
|
2684 (not (looking-at
|
|
|
2685 (concat java-font-lock-class-name-regexp
|
|
|
2686 "\\s *\\(\\[\\s *\\]\\s *\\)*\\<")))))
|
|
|
2687 (save-match-data
|
|
|
2688 (condition-case nil
|
|
|
2689 (save-restriction
|
|
|
2690 (narrow-to-region (point-min) limit)
|
|
|
2691 (goto-char (match-end 0))
|
|
|
2692 ;; Note: Both `scan-sexps' and the second goto-char can
|
|
|
2693 ;; generate an error which is caught by the
|
|
|
2694 ;; `condition-case' expression.
|
|
|
2695 (while (not (looking-at "\\s *\\(\\(,\\)\\|;\\|$\\)"))
|
|
|
2696 (goto-char (or (scan-sexps (point) 1) (point-max))))
|
|
|
2697 (goto-char (match-end 2))) ; non-nil
|
|
|
2698 (error t)))))
|
|
|
2699
|
|
|
2700
|
|
|
2701 (defvar tex-font-lock-keywords
|
|
|
2702 ; ;; Regexps updated with help from Ulrik Dickow <dickow@nbi.dk>.
|
|
|
2703 ; '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
|
|
|
2704 ; 2 font-lock-function-name-face)
|
|
|
2705 ; ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
|
|
|
2706 ; 2 font-lock-reference-face)
|
|
|
2707 ; ;; It seems a bit dubious to use `bold' and `italic' faces since we might
|
|
|
2708 ; ;; not be able to display those fonts.
|
|
|
2709 ; ("{\\\\bf\\([^}]+\\)}" 1 'bold keep)
|
|
|
2710 ; ("{\\\\\\(em\\|it\\|sl\\)\\([^}]+\\)}" 2 'italic keep)
|
|
|
2711 ; ("\\\\\\([a-zA-Z@]+\\|.\\)" . font-lock-keyword-face)
|
|
|
2712 ; ("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)" 1 font-lock-function-name-face keep))
|
|
|
2713 ;; Rewritten and extended for LaTeX2e by Ulrik Dickow <dickow@nbi.dk>.
|
|
|
2714 '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
|
|
|
2715 2 font-lock-function-name-face)
|
|
|
2716 ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
|
|
|
2717 2 font-lock-reference-face)
|
|
|
2718 ("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)" 1 font-lock-function-name-face)
|
|
|
2719 "\\\\\\([a-zA-Z@]+\\|.\\)"
|
|
|
2720 ;; It seems a bit dubious to use `bold' and `italic' faces since we might
|
|
|
2721 ;; not be able to display those fonts.
|
|
|
2722 ;; LaTeX2e: \emph{This is emphasized}.
|
|
|
2723 ("\\\\emph{\\([^}]+\\)}" 1 'italic keep)
|
|
|
2724 ;; LaTeX2e: \textbf{This is bold}, \textit{...}, \textsl{...}
|
|
|
2725 ("\\\\text\\(\\(bf\\)\\|it\\|sl\\){\\([^}]+\\)}"
|
|
|
2726 3 (if (match-beginning 2) 'bold 'italic) keep)
|
|
|
2727 ;; Old-style bf/em/it/sl. Stop at `\\' and un-escaped `&', for good tables.
|
|
|
2728 ("\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)"
|
|
|
2729 3 (if (match-beginning 2) 'bold 'italic) keep))
|
|
|
2730 "Default expressions to highlight in TeX modes.")
|
|
|
2731
|
|
444
|
2732 (defconst ksh-font-lock-keywords
|
|
428
|
2733 (list
|
|
|
2734 '("\\(^\\|[^\$\\\]\\)#.*" . font-lock-comment-face)
|
|
|
2735 '("\\<\\(if\\|then\\|else\\|elif\\|fi\\|case\\|esac\\|for\\|do\\|done\\|foreach\\|in\\|end\\|select\\|while\\|repeat\\|time\\|function\\|until\\|exec\\|command\\|coproc\\|noglob\\|nohup\\|nocorrect\\|source\\|autoload\\|alias\\|unalias\\|export\\|set\\|echo\\|eval\\|cd\\|log\\|compctl\\)\\>" . font-lock-keyword-face)
|
|
|
2736 '("\\<\\[\\[.*\\]\\]\\>" . font-lock-type-face)
|
|
|
2737 '("\$\(.*\)" . font-lock-type-face)
|
|
444
|
2738 )
|
|
428
|
2739 "Additional expressions to highlight in ksh-mode.")
|
|
|
2740
|
|
444
|
2741 (defconst sh-font-lock-keywords
|
|
428
|
2742 (list
|
|
|
2743 '("\\(^\\|[^\$\\\]\\)#.*" . font-lock-comment-face)
|
|
|
2744 '("\\<\\(if\\|then\\|else\\|elif\\|fi\\|case\\|esac\\|for\\|do\\|done\\|in\\|while\\|exec\\|export\\|set\\|echo\\|eval\\|cd\\)\\>" . font-lock-keyword-face)
|
|
|
2745 '("\\[.*\\]" . font-lock-type-face)
|
|
|
2746 '("`.*`" . font-lock-type-face)
|
|
444
|
2747 )
|
|
428
|
2748 "Additional expressions to highlight in sh-mode.")
|
|
|
2749
|
|
|
2750
|
|
|
2751 ;; Install ourselves:
|
|
|
2752
|
|
|
2753 (add-hook 'find-file-hooks 'font-lock-set-defaults t)
|
|
|
2754
|
|
|
2755 ;;;###autoload
|
|
|
2756 (add-minor-mode 'font-lock-mode " Font")
|
|
|
2757
|
|
|
2758 ;; Provide ourselves:
|
|
|
2759
|
|
|
2760 (provide 'font-lock)
|
|
|
2761
|
|
|
2762 ;;; font-lock.el ends here
|
