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