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1 ;;; completion.el --- dynamic word-completion code
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2 ;; Copyright (C) 1990, 1993, 1995 Free Software Foundation, Inc.
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3
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4 ;; Maintainer: FSF
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5 ;; Keywords: abbrev
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6 ;; Author: Jim Salem <salem@think.com> of Thinking Machines Inc.
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7 ;; (ideas suggested by Brewster Kahle)
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8
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9 ;; This file is part of GNU Emacs.
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10
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11 ;; GNU Emacs is free software; you can redistribute it and/or modify
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12 ;; it under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; GNU Emacs is distributed in the hope that it will be useful,
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17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 ;; GNU General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with GNU Emacs; see the file COPYING. If not, write to
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23 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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24
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25 ;;; Synched up with: FSF 19.30.
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26
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27 ;;; Commentary:
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28 ;;;
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29 ;;; What to put in .emacs
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30 ;;;-----------------------
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31 ;;; (load "completion")
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32 ;;; (initialize-completions)
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33
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34 ;;;---------------------------------------------------------------------------
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35 ;;; Documentation [Slightly out of date]
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36 ;;;---------------------------------------------------------------------------
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37 ;;; (also check the documentation string of the functions)
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38 ;;;
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39 ;;; Introduction
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40 ;;;---------------
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41 ;;;
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42 ;;; After you type a few characters, pressing the "complete" key inserts
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43 ;;; the rest of the word you are likely to type.
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44 ;;;
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45 ;;; This watches all the words that you type and remembers them. When
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46 ;;; typing a new word, pressing "complete" (meta-return) "completes" the
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47 ;;; word by inserting the most recently used word that begins with the
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48 ;;; same characters. If you press meta-return repeatedly, it cycles
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49 ;;; through all the words it knows about.
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50 ;;;
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51 ;;; If you like the completion then just continue typing, it is as if you
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52 ;;; entered the text by hand. If you want the inserted extra characters
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53 ;;; to go away, type control-w or delete. More options are described below.
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54 ;;;
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55 ;;; The guesses are made in the order of the most recently "used". Typing
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56 ;;; in a word and then typing a separator character (such as a space) "uses"
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57 ;;; the word. So does moving a cursor over the word. If no words are found,
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58 ;;; it uses an extended version of the dabbrev style completion.
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59 ;;;
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60 ;;; You automatically save the completions you use to a file between
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61 ;;; sessions.
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62 ;;;
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63 ;;; Completion enables programmers to enter longer, more descriptive
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64 ;;; variable names while typing fewer keystrokes than they normally would.
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65 ;;;
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66 ;;;
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67 ;;; Full documentation
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68 ;;;---------------------
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69 ;;;
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70 ;;; A "word" is any string containing characters with either word or symbol
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71 ;;; syntax. [E.G. Any alphanumeric string with hyphens, underscores, etc.]
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72 ;;; Unless you change the constants, you must type at least three characters
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73 ;;; for the word to be recognized. Only words longer than 6 characters are
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74 ;;; saved.
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75 ;;;
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76 ;;; When you load this file, completion will be on. I suggest you use the
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77 ;;; compiled version (because it is noticeably faster).
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78 ;;;
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79 ;;; M-X completion-mode toggles whether or not new words are added to the
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80 ;;; database by changing the value of enable-completion.
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81 ;;;
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82 ;;; SAVING/LOADING COMPLETIONS
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83 ;;; Completions are automatically saved from one session to another
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84 ;;; (unless save-completions-flag or enable-completion is nil).
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85 ;;; Loading this file (or calling initialize-completions) causes EMACS
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86 ;;; to load a completions database for a saved completions file
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87 ;;; (default: ~/.completions). When you exit, EMACS saves a copy of the
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88 ;;; completions that you
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89 ;;; often use. When you next start, EMACS loads in the saved completion file.
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90 ;;;
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91 ;;; The number of completions saved depends loosely on
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92 ;;; *saved-completions-decay-factor*. Completions that have never been
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93 ;;; inserted via "complete" are not saved. You are encouraged to experiment
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94 ;;; with different functions (see compute-completion-min-num-uses).
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95 ;;;
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96 ;;; Some completions are permanent and are always saved out. These
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97 ;;; completions have their num-uses slot set to T. Use
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98 ;;; add-permanent-completion to do this
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99 ;;;
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100 ;;; Completions are saved only if enable-completion is T. The number of old
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101 ;;; versions kept of the saved completions file is controlled by
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102 ;;; completions-file-versions-kept.
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103 ;;;
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104 ;;; COMPLETE KEY OPTIONS
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105 ;;; The complete function takes a numeric arguments.
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106 ;;; control-u :: leave the point at the beginning of the completion rather
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107 ;;; than the middle.
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108 ;;; a number :: rotate through the possible completions by that amount
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109 ;;; `-' :: same as -1 (insert previous completion)
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110 ;;;
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111 ;;; HOW THE DATABASE IS MAINTAINED
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112 ;;; <write>
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113 ;;;
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114 ;;; UPDATING THE DATABASE MANUALLY
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115 ;;; m-x kill-completion
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116 ;;; kills the completion at point.
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117 ;;; m-x add-completion
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118 ;;; m-x add-permanent-completion
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119 ;;;
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120 ;;; UPDATING THE DATABASE FROM A SOURCE CODE FILE
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121 ;;; m-x add-completions-from-buffer
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122 ;;; Parses all the definition names from a C or LISP mode buffer and
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123 ;;; adds them to the completion database.
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124 ;;;
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125 ;;; m-x add-completions-from-lisp-file
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126 ;;; Parses all the definition names from a C or Lisp mode file and
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127 ;;; adds them to the completion database.
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128 ;;;
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129 ;;; UPDATING THE DATABASE FROM A TAGS TABLE
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130 ;;; m-x add-completions-from-tags-table
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131 ;;; Adds completions from the current tags-table-buffer.
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132 ;;;
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133 ;;; HOW A COMPLETION IS FOUND
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134 ;;; <write>
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135 ;;;
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136 ;;; STRING CASING
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137 ;;; Completion is string case independent if case-fold-search has its
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138 ;;; normal default of T. Also when the completion is inserted the case of the
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139 ;;; entry is coerced appropriately.
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140 ;;; [E.G. APP --> APPROPRIATELY app --> appropriately
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141 ;;; App --> Appropriately]
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142 ;;;
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143 ;;; INITIALIZATION
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144 ;;; The form `(initialize-completions)' initializes the completion system by
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145 ;;; trying to load in the user's completions. After the first cal, further
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146 ;;; calls have no effect so one should be careful not to put the form in a
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147 ;;; site's standard site-init file.
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148 ;;;
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149 ;;;---------------------------------------------------------------------------
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150 ;;;
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151 ;;;
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152
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153 ;;;---------------------------------------------------------------------------
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154 ;;; Functions you might like to call
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155 ;;;---------------------------------------------------------------------------
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156 ;;;
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157 ;;; add-completion string &optional num-uses
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158 ;;; Adds a new string to the database
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159 ;;;
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160 ;;; add-permanent-completion string
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161 ;;; Adds a new string to the database with num-uses = T
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162 ;;;
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163
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164 ;;; kill-completion string
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165 ;;; Kills the completion from the database.
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166 ;;;
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167 ;;; clear-all-completions
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168 ;;; Clears the database
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169 ;;;
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170 ;;; list-all-completions
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171 ;;; Returns a list of all completions.
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172 ;;;
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173 ;;;
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174 ;;; next-completion string &optional index
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175 ;;; Returns a completion entry that starts with string.
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176 ;;;
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177 ;;; find-exact-completion string
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178 ;;; Returns a completion entry that exactly matches string.
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179 ;;;
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180 ;;; complete
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181 ;;; Inserts a completion at point
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182 ;;;
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183 ;;; initialize-completions
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184 ;;; Loads the completions file and sets up so that exiting emacs will
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185 ;;; save them.
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186 ;;;
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187 ;;; save-completions-to-file &optional filename
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188 ;;; load-completions-from-file &optional filename
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189 ;;;
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190 ;;;-----------------------------------------------
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191 ;;; Other functions
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192 ;;;-----------------------------------------------
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193 ;;;
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194 ;;; get-completion-list string
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195 ;;;
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196 ;;; These things are for manipulating the structure
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197 ;;; make-completion string num-uses
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198 ;;; completion-num-uses completion
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199 ;;; completion-string completion
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200 ;;; set-completion-num-uses completion num-uses
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201 ;;; set-completion-string completion string
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202 ;;;
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203 ;;;
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204
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205 ;;;-----------------------------------------------
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206 ;;; To Do :: (anybody ?)
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207 ;;;-----------------------------------------------
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208 ;;;
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209 ;;; Implement Lookup and keyboard interface in C
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210 ;;; Add package prefix smarts (for Common Lisp)
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211 ;;; Add autoprompting of possible completions after every keystroke (fast
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212 ;;; terminals only !)
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213 ;;; Add doc. to texinfo
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214 ;;;
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215 ;;;
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216 ;;;-----------------------------------------------
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217 ;;; Change Log:
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218 ;;;-----------------------------------------------
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219 ;;; Sometime in '84 Brewster implemented a somewhat buggy version for
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220 ;;; Symbolics LISPMs.
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221 ;;; Jan. '85 Jim became enamored of the idea and implemented a faster,
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222 ;;; more robust version.
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223 ;;; With input from many users at TMC, (rose, craig, and gls come to mind),
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224 ;;; the current style of interface was developed.
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225 ;;; 9/87, Jim and Brewster took terminals home. Yuck. After
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226 ;;; complaining for a while Brewester implemented a subset of the current
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227 ;;; LISPM version for GNU Emacs.
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228 ;;; 8/88 After complaining for a while (and with sufficient
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229 ;;; promised rewards), Jim reimplemented a version of GNU completion
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230 ;;; superior to that of the LISPM version.
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231 ;;;
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232 ;;;-----------------------------------------------
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233 ;;; Acknowledgements
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234 ;;;-----------------------------------------------
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235 ;;; Cliff Lasser (cal@think.com), Kevin Herbert (kph@cisco.com),
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236 ;;; eero@media-lab, kgk@cs.brown.edu, jla@ai.mit.edu,
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237 ;;;
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238 ;;;-----------------------------------------------
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239 ;;; Change Log
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240 ;;;-----------------------------------------------
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241 ;;; From version 9 to 10
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242 ;;; - Allowance for non-integral *completion-version* nos.
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243 ;;; - Fix cmpl-apply-as-top-level for keyboard macros
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244 ;;; - Fix broken completion merging (in save-completions-to-file)
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245 ;;; - More misc. fixes for version 19.0 of emacs
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246 ;;;
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247 ;;; From Version 8 to 9
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248 ;;; - Ported to version 19.0 of emacs (backcompatible with version 18)
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249 ;;; - Added add-completions-from-tags-table (with thanks to eero@media-lab)
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250 ;;;
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251 ;;; From Version 7 to 8
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252 ;;; - Misc. changes to comments
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253 ;;; - new completion key bindings: c-x o, M->, M-<, c-a, c-e
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254 ;;; - cdabbrev now checks all the visible window buffers and the "other buffer"
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255 ;;; - `%' is now a symbol character rather than a separator (except in C mode)
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256 ;;;
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257 ;;; From Version 6 to 7
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258 ;;; - Fixed bug with saving out .completion file the first time
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259 ;;;
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260 ;;; From Version 5 to 6
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261 ;;; - removed statistics recording
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262 ;;; - reworked advise to handle autoloads
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263 ;;; - Fixed fortran mode support
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264 ;;; - Added new cursor motion triggers
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265 ;;;
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266 ;;; From Version 4 to 5
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267 ;;; - doesn't bother saving if nothing has changed
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268 ;;; - auto-save if haven't used for a 1/2 hour
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269 ;;; - save period extended to two weeks
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270 ;;; - minor fix to capitalization code
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271 ;;; - added *completion-auto-save-period* to variables recorded.
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272 ;;; - added reenter protection to cmpl-record-statistics-filter
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273 ;;; - added backup protection to save-completions-to-file (prevents
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274 ;;; problems with disk full errors)
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275
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276 ;;; Code:
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277
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278 ;;;---------------------------------------------------------------------------
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279 ;;; User changeable parameters
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280 ;;;---------------------------------------------------------------------------
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281
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282 (defvar enable-completion t
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283 "*Non-nil means enable recording and saving of completions.
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284 If nil, no new words added to the database or saved to the init file.")
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285
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286 (defvar save-completions-flag t
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287 "*Non-nil means save most-used completions when exiting Emacs.
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288 See also `saved-completions-retention-time'.")
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289
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290 (defvar save-completions-file-name "~/.completions"
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291 "*The filename to save completions to.")
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292
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293 (defvar save-completions-retention-time 336
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294 "*Discard a completion if unused for this many hours.
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295 \(1 day = 24, 1 week = 168). If this is 0, non-permanent completions
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296 will not be saved unless these are used. Default is two weeks.")
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297
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298 (defvar completion-on-separator-character nil
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299 "*Non-nil means separator characters mark previous word as used.
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300 This means the word will be saved as a completion.")
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301
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302 (defvar completions-file-versions-kept kept-new-versions
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303 "*Number of versions to keep for the saved completions file.")
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304
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305 (defvar completion-prompt-speed-threshold 4800
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306 "*Minimum output speed at which to display next potential completion.")
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307
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308 (defvar completion-cdabbrev-prompt-flag nil
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309 "*If non-nil, the next completion prompt does a cdabbrev search.
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310 This can be time consuming.")
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311
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312 (defvar completion-search-distance 15000
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313 "*How far to search in the buffer when looking for completions.
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314 In number of characters. If nil, search the whole buffer.")
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315
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316 (defvar completions-merging-modes '(lisp c)
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317 "*List of modes {`c' or `lisp'} for automatic completions merging.
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318 Definitions from visited files which have these modes
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319 are automatically added to the completion database.")
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320
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321 ;;;(defvar *record-cmpl-statistics-p* nil
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322 ;;; "*If non-nil, record completion statistics.")
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323
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324 ;;;(defvar *completion-auto-save-period* 1800
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325 ;;; "*The period in seconds to wait for emacs to be idle before autosaving
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326 ;;;the completions. Default is a 1/2 hour.")
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327
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328 (defconst completion-min-length nil ;; defined below in eval-when
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329 "*The minimum length of a stored completion.
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330 DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
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331
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332 (defconst completion-max-length nil ;; defined below in eval-when
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333 "*The maximum length of a stored completion.
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334 DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
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335
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336 (defconst completion-prefix-min-length nil ;; defined below in eval-when
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337 "The minimum length of a completion search string.
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338 DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
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339
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340 (defmacro eval-when-compile-load-eval (&rest body)
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341 ;; eval everything before expanding
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342 (mapcar 'eval body)
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343 (cons 'progn body))
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344
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345 (eval-when-compile
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346 (defvar completion-gensym-counter 0)
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347 (defun completion-gensym (&optional arg)
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348 "Generate a new uninterned symbol.
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349 The name is made by appending a number to PREFIX, default \"G\"."
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350 (let ((prefix (if (stringp arg) arg "G"))
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351 (num (if (integerp arg) arg
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352 (prog1 completion-gensym-counter
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353 (setq completion-gensym-counter (1+ completion-gensym-counter))))))
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354 (make-symbol (format "%s%d" prefix num)))))
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355
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356 (defmacro completion-dolist (spec &rest body)
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357 "(completion-dolist (VAR LIST [RESULT]) BODY...): loop over a list.
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358 Evaluate BODY with VAR bound to each `car' from LIST, in turn.
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359 Then evaluate RESULT to get return value, default nil."
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360 (let ((temp (completion-gensym "--dolist-temp--")))
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361 (append (list 'let (list (list temp (nth 1 spec)) (car spec))
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362 (append (list 'while temp
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363 (list 'setq (car spec) (list 'car temp)))
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364 body (list (list 'setq temp
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365 (list 'cdr temp)))))
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366 (if (cdr (cdr spec))
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367 (cons (list 'setq (car spec) nil) (cdr (cdr spec)))
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368 '(nil)))))
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369
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370 (defun completion-eval-when ()
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371 (eval-when-compile-load-eval
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372 ;; These vars. are defined at both compile and load time.
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373 (setq completion-min-length 6)
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374 (setq completion-max-length 200)
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375 (setq completion-prefix-min-length 3)))
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376
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377 (completion-eval-when)
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378
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379 ;;;---------------------------------------------------------------------------
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380 ;;; Internal Variables
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381 ;;;---------------------------------------------------------------------------
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382
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383 (defvar cmpl-initialized-p nil
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384 "Set to t when the completion system is initialized.
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|
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385 Indicates that the old completion file has been read in.")
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386
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387 (defvar cmpl-completions-accepted-p nil
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388 "Set to t as soon as the first completion has been accepted.
|
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389 Used to decide whether to save completions.")
|
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|
390
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391 (defvar cmpl-preceding-syntax)
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392
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393 (defvar completion-string)
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394
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395 ;;;---------------------------------------------------------------------------
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396 ;;; Low level tools
|
|
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397 ;;;---------------------------------------------------------------------------
|
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398
|
|
|
399 ;;;-----------------------------------------------
|
|
|
400 ;;; Misc.
|
|
|
401 ;;;-----------------------------------------------
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402
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|
403 (defun minibuffer-window-selected-p ()
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|
|
404 "True iff the current window is the minibuffer."
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|
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405 (window-minibuffer-p (selected-window)))
|
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406
|
|
|
407 ;; This used to be `(eval form)'. Eval FORM at run time now.
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|
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408 (defmacro cmpl-read-time-eval (form)
|
|
|
409 form)
|
|
|
410
|
|
|
411 ;;;-----------------------------------------------
|
|
|
412 ;;; String case coercion
|
|
|
413 ;;;-----------------------------------------------
|
|
|
414
|
|
|
415 (defun cmpl-string-case-type (string)
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416 "Returns :capitalized, :up, :down, :mixed, or :neither."
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417 (let ((case-fold-search nil))
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|
418 (cond ((string-match "[a-z]" string)
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419 (cond ((string-match "[A-Z]" string)
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420 (cond ((and (> (length string) 1)
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|
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421 (null (string-match "[A-Z]" string 1)))
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|
422 ':capitalized)
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|
|
423 (t
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|
|
424 ':mixed)))
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|
|
425 (t ':down)))
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|
|
426 (t
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|
427 (cond ((string-match "[A-Z]" string)
|
|
|
428 ':up)
|
|
|
429 (t ':neither))))
|
|
|
430 ))
|
|
|
431
|
|
|
432 ;;; Tests -
|
|
|
433 ;;; (cmpl-string-case-type "123ABCDEF456") --> :up
|
|
|
434 ;;; (cmpl-string-case-type "123abcdef456") --> :down
|
|
|
435 ;;; (cmpl-string-case-type "123aBcDeF456") --> :mixed
|
|
|
436 ;;; (cmpl-string-case-type "123456") --> :neither
|
|
|
437 ;;; (cmpl-string-case-type "Abcde123") --> :capitalized
|
|
|
438
|
|
|
439 (defun cmpl-coerce-string-case (string case-type)
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|
|
440 (cond ((eq case-type ':down) (downcase string))
|
|
|
441 ((eq case-type ':up) (upcase string))
|
|
|
442 ((eq case-type ':capitalized)
|
|
|
443 (setq string (downcase string))
|
|
|
444 (aset string 0 (logand ?\337 (aref string 0)))
|
|
|
445 string)
|
|
|
446 (t string)
|
|
|
447 ))
|
|
|
448
|
|
|
449 (defun cmpl-merge-string-cases (string-to-coerce given-string)
|
|
|
450 (let ((string-case-type (cmpl-string-case-type string-to-coerce))
|
|
|
451 )
|
|
|
452 (cond ((memq string-case-type '(:down :up :capitalized))
|
|
|
453 ;; Found string is in a standard case. Coerce to a type based on
|
|
|
454 ;; the given string
|
|
|
455 (cmpl-coerce-string-case string-to-coerce
|
|
|
456 (cmpl-string-case-type given-string))
|
|
|
457 )
|
|
|
458 (t
|
|
|
459 ;; If the found string is in some unusual case, just insert it
|
|
|
460 ;; as is
|
|
|
461 string-to-coerce)
|
|
|
462 )))
|
|
|
463
|
|
|
464 ;;; Tests -
|
|
|
465 ;;; (cmpl-merge-string-cases "AbCdEf456" "abc") --> AbCdEf456
|
|
|
466 ;;; (cmpl-merge-string-cases "abcdef456" "ABC") --> ABCDEF456
|
|
|
467 ;;; (cmpl-merge-string-cases "ABCDEF456" "Abc") --> Abcdef456
|
|
|
468 ;;; (cmpl-merge-string-cases "ABCDEF456" "abc") --> abcdef456
|
|
|
469
|
|
|
470
|
|
|
471 (defun cmpl-hours-since-origin ()
|
|
|
472 (let ((time (current-time)))
|
|
|
473 (truncate
|
|
|
474 (+ (* (/ (car time) 3600.0) (lsh 1 16))
|
|
|
475 (/ (nth 2 time) 3600.0)))))
|
|
|
476
|
|
|
477 ;;;---------------------------------------------------------------------------
|
|
|
478 ;;; "Symbol" parsing functions
|
|
|
479 ;;;---------------------------------------------------------------------------
|
|
|
480 ;;; The functions symbol-before-point, symbol-under-point, etc. quickly return
|
|
|
481 ;;; an appropriate symbol string. The strategy is to temporarily change
|
|
|
482 ;;; the syntax table to enable fast symbol searching. There are three classes
|
|
|
483 ;;; of syntax in these "symbol" syntax tables ::
|
|
|
484 ;;;
|
|
|
485 ;;; syntax (?_) - "symbol" chars (e.g. alphanumerics)
|
|
|
486 ;;; syntax (?w) - symbol chars to ignore at end of words (e.g. period).
|
|
|
487 ;;; syntax (? ) - everything else
|
|
|
488 ;;;
|
|
|
489 ;;; Thus by judicious use of scan-sexps and forward-word, we can get
|
|
|
490 ;;; the word we want relatively fast and without consing.
|
|
|
491 ;;;
|
|
|
492 ;;; Why do we need a separate category for "symbol chars to ignore at ends" ?
|
|
|
493 ;;; For example, in LISP we want starting :'s trimmed
|
|
|
494 ;;; so keyword argument specifiers also define the keyword completion. And,
|
|
|
495 ;;; for example, in C we want `.' appearing in a structure ref. to
|
|
|
496 ;;; be kept intact in order to store the whole structure ref.; however, if
|
|
|
497 ;;; it appears at the end of a symbol it should be discarded because it is
|
|
|
498 ;;; probably used as a period.
|
|
|
499
|
|
|
500 ;;; Here is the default completion syntax ::
|
|
|
501 ;;; Symbol chars :: A-Z a-z 0-9 @ / \ * + ~ $ < > %
|
|
|
502 ;;; Symbol chars to ignore at ends :: _ : . -
|
|
|
503 ;;; Separator chars. :: <tab> <space> ! ^ & ( ) = ` | { } [ ] ; " ' #
|
|
|
504 ;;; , ? <Everything else>
|
|
|
505
|
|
|
506 ;;; Mode specific differences and notes ::
|
|
|
507 ;;; LISP diffs ->
|
|
|
508 ;;; Symbol chars :: ! & ? = ^
|
|
|
509 ;;;
|
|
|
510 ;;; C diffs ->
|
|
|
511 ;;; Separator chars :: + * / : %
|
|
|
512 ;;; A note on the hyphen (`-'). Perhaps the hyphen should also be a separator
|
|
|
513 ;;; char., however, we wanted to have completion symbols include pointer
|
|
|
514 ;;; references. For example, "foo->bar" is a symbol as far as completion is
|
|
|
515 ;;; concerned.
|
|
|
516 ;;;
|
|
|
517 ;;; FORTRAN diffs ->
|
|
|
518 ;;; Separator chars :: + - * / :
|
|
|
519 ;;;
|
|
|
520 ;;; Pathname diffs ->
|
|
|
521 ;;; Symbol chars :: .
|
|
|
522 ;;; Of course there is no pathname "mode" and in fact we have not implemented
|
|
|
523 ;;; this table. However, if there was such a mode, this is what it would look
|
|
|
524 ;;; like.
|
|
|
525
|
|
|
526 ;;;-----------------------------------------------
|
|
|
527 ;;; Table definitions
|
|
|
528 ;;;-----------------------------------------------
|
|
|
529
|
|
|
530 (defun cmpl-make-standard-completion-syntax-table ()
|
|
|
531 (let ((table (make-vector 256 0)) ;; default syntax is whitespace
|
|
|
532 i)
|
|
|
533 ;; alpha chars
|
|
|
534 (setq i 0)
|
|
|
535 (while (< i 26)
|
|
|
536 (modify-syntax-entry (+ ?a i) "_" table)
|
|
|
537 (modify-syntax-entry (+ ?A i) "_" table)
|
|
|
538 (setq i (1+ i)))
|
|
|
539 ;; digit chars.
|
|
|
540 (setq i 0)
|
|
|
541 (while (< i 10)
|
|
|
542 (modify-syntax-entry (+ ?0 i) "_" table)
|
|
|
543 (setq i (1+ i)))
|
|
|
544 ;; Other ones
|
|
|
545 (let ((symbol-chars '(?@ ?/ ?\\ ?* ?+ ?~ ?$ ?< ?> ?%))
|
|
|
546 (symbol-chars-ignore '(?_ ?- ?: ?.))
|
|
|
547 )
|
|
|
548 (completion-dolist (char symbol-chars)
|
|
|
549 (modify-syntax-entry char "_" table))
|
|
|
550 (completion-dolist (char symbol-chars-ignore)
|
|
|
551 (modify-syntax-entry char "w" table)
|
|
|
552 )
|
|
|
553 )
|
|
|
554 table))
|
|
|
555
|
|
|
556 (defconst cmpl-standard-syntax-table (cmpl-make-standard-completion-syntax-table))
|
|
|
557
|
|
|
558 (defun cmpl-make-lisp-completion-syntax-table ()
|
|
|
559 (let ((table (copy-syntax-table cmpl-standard-syntax-table))
|
|
|
560 (symbol-chars '(?! ?& ?? ?= ?^))
|
|
|
561 )
|
|
|
562 (completion-dolist (char symbol-chars)
|
|
|
563 (modify-syntax-entry char "_" table))
|
|
|
564 table))
|
|
|
565
|
|
|
566 (defun cmpl-make-c-completion-syntax-table ()
|
|
|
567 (let ((table (copy-syntax-table cmpl-standard-syntax-table))
|
|
|
568 (separator-chars '(?+ ?* ?/ ?: ?%))
|
|
|
569 )
|
|
|
570 (completion-dolist (char separator-chars)
|
|
|
571 (modify-syntax-entry char " " table))
|
|
|
572 table))
|
|
|
573
|
|
|
574 (defun cmpl-make-fortran-completion-syntax-table ()
|
|
|
575 (let ((table (copy-syntax-table cmpl-standard-syntax-table))
|
|
|
576 (separator-chars '(?+ ?- ?* ?/ ?:))
|
|
|
577 )
|
|
|
578 (completion-dolist (char separator-chars)
|
|
|
579 (modify-syntax-entry char " " table))
|
|
|
580 table))
|
|
|
581
|
|
|
582 (defconst cmpl-lisp-syntax-table (cmpl-make-lisp-completion-syntax-table))
|
|
|
583 (defconst cmpl-c-syntax-table (cmpl-make-c-completion-syntax-table))
|
|
|
584 (defconst cmpl-fortran-syntax-table (cmpl-make-fortran-completion-syntax-table))
|
|
|
585
|
|
|
586 (defvar cmpl-syntax-table cmpl-standard-syntax-table
|
|
|
587 "This variable holds the current completion syntax table.")
|
|
|
588 (make-variable-buffer-local 'cmpl-syntax-table)
|
|
|
589
|
|
|
590 ;;;-----------------------------------------------
|
|
|
591 ;;; Installing the appropriate mode tables
|
|
|
592 ;;;-----------------------------------------------
|
|
|
593
|
|
|
594 (add-hook 'lisp-mode-hook
|
|
|
595 '(lambda ()
|
|
|
596 (setq cmpl-syntax-table cmpl-lisp-syntax-table)))
|
|
|
597
|
|
|
598 (add-hook 'c-mode-hook
|
|
|
599 '(lambda ()
|
|
|
600 (setq cmpl-syntax-table cmpl-c-syntax-table)))
|
|
|
601
|
|
|
602 (add-hook 'fortran-mode-hook
|
|
|
603 '(lambda ()
|
|
|
604 (setq cmpl-syntax-table cmpl-fortran-syntax-table)
|
|
|
605 (completion-setup-fortran-mode)))
|
|
|
606
|
|
|
607 ;;;-----------------------------------------------
|
|
|
608 ;;; Symbol functions
|
|
|
609 ;;;-----------------------------------------------
|
|
|
610 (defvar cmpl-symbol-start nil
|
|
|
611 "Holds first character of symbol, after any completion symbol function.")
|
|
|
612 (defvar cmpl-symbol-end nil
|
|
|
613 "Holds last character of symbol, after any completion symbol function.")
|
|
|
614 ;;; These are temp. vars. we use to avoid using let.
|
|
|
615 ;;; Why ? Small speed improvement.
|
|
|
616 (defvar cmpl-saved-syntax nil)
|
|
|
617 (defvar cmpl-saved-point nil)
|
|
|
618
|
|
|
619 (defun symbol-under-point ()
|
|
|
620 "Returns the symbol that the point is currently on.
|
|
|
621 But only if it is longer than `completion-min-length'."
|
|
|
622 (setq cmpl-saved-syntax (syntax-table))
|
|
|
623 (set-syntax-table cmpl-syntax-table)
|
|
|
624 (cond
|
|
|
625 ;; Cursor is on following-char and after preceding-char
|
|
|
626 ((memq (char-syntax (following-char)) '(?w ?_))
|
|
|
627 (setq cmpl-saved-point (point)
|
|
|
628 cmpl-symbol-start (scan-sexps (1+ cmpl-saved-point) -1)
|
|
|
629 cmpl-symbol-end (scan-sexps cmpl-saved-point 1))
|
|
|
630 ;; remove chars to ignore at the start
|
|
|
631 (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
|
|
|
632 (goto-char cmpl-symbol-start)
|
|
|
633 (forward-word 1)
|
|
|
634 (setq cmpl-symbol-start (point))
|
|
|
635 (goto-char cmpl-saved-point)
|
|
|
636 ))
|
|
|
637 ;; remove chars to ignore at the end
|
|
|
638 (cond ((= (char-syntax (char-after (1- cmpl-symbol-end))) ?w)
|
|
|
639 (goto-char cmpl-symbol-end)
|
|
|
640 (forward-word -1)
|
|
|
641 (setq cmpl-symbol-end (point))
|
|
|
642 (goto-char cmpl-saved-point)
|
|
|
643 ))
|
|
|
644 ;; restore state
|
|
|
645 (set-syntax-table cmpl-saved-syntax)
|
|
|
646 ;; Return completion if the length is reasonable
|
|
|
647 (if (and (<= (cmpl-read-time-eval completion-min-length)
|
|
|
648 (- cmpl-symbol-end cmpl-symbol-start))
|
|
|
649 (<= (- cmpl-symbol-end cmpl-symbol-start)
|
|
|
650 (cmpl-read-time-eval completion-max-length)))
|
|
|
651 (buffer-substring cmpl-symbol-start cmpl-symbol-end))
|
|
|
652 )
|
|
|
653 (t
|
|
|
654 ;; restore table if no symbol
|
|
|
655 (set-syntax-table cmpl-saved-syntax)
|
|
|
656 nil)
|
|
|
657 ))
|
|
|
658
|
|
|
659 ;;; tests for symbol-under-point
|
|
|
660 ;;; `^' indicates cursor pos. where value is returned
|
|
|
661 ;;; simple-word-test
|
|
|
662 ;;; ^^^^^^^^^^^^^^^^ --> simple-word-test
|
|
|
663 ;;; _harder_word_test_
|
|
|
664 ;;; ^^^^^^^^^^^^^^^^^^ --> harder_word_test
|
|
|
665 ;;; .___.______.
|
|
|
666 ;;; --> nil
|
|
|
667 ;;; /foo/bar/quux.hello
|
|
|
668 ;;; ^^^^^^^^^^^^^^^^^^^ --> /foo/bar/quux.hello
|
|
|
669 ;;;
|
|
|
670
|
|
|
671 (defun symbol-before-point ()
|
|
|
672 "Returns a string of the symbol immediately before point.
|
|
|
673 Returns nil if there isn't one longer than `completion-min-length'."
|
|
|
674 ;; This is called when a word separator is typed so it must be FAST !
|
|
|
675 (setq cmpl-saved-syntax (syntax-table))
|
|
|
676 (set-syntax-table cmpl-syntax-table)
|
|
|
677 ;; Cursor is on following-char and after preceding-char
|
|
|
678 (cond ((= (setq cmpl-preceding-syntax (char-syntax (preceding-char))) ?_)
|
|
|
679 ;; No chars. to ignore at end
|
|
|
680 (setq cmpl-symbol-end (point)
|
|
|
681 cmpl-symbol-start (scan-sexps (1+ cmpl-symbol-end) -1)
|
|
|
682 )
|
|
|
683 ;; remove chars to ignore at the start
|
|
|
684 (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
|
|
|
685 (goto-char cmpl-symbol-start)
|
|
|
686 (forward-word 1)
|
|
|
687 (setq cmpl-symbol-start (point))
|
|
|
688 (goto-char cmpl-symbol-end)
|
|
|
689 ))
|
|
|
690 ;; restore state
|
|
|
691 (set-syntax-table cmpl-saved-syntax)
|
|
|
692 ;; return value if long enough
|
|
|
693 (if (>= cmpl-symbol-end
|
|
|
694 (+ cmpl-symbol-start
|
|
|
695 (cmpl-read-time-eval completion-min-length)))
|
|
|
696 (buffer-substring cmpl-symbol-start cmpl-symbol-end))
|
|
|
697 )
|
|
|
698 ((= cmpl-preceding-syntax ?w)
|
|
|
699 ;; chars to ignore at end
|
|
|
700 (setq cmpl-saved-point (point)
|
|
|
701 cmpl-symbol-start (scan-sexps (1+ cmpl-saved-point) -1))
|
|
|
702 ;; take off chars. from end
|
|
|
703 (forward-word -1)
|
|
|
704 (setq cmpl-symbol-end (point))
|
|
|
705 ;; remove chars to ignore at the start
|
|
|
706 (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
|
|
|
707 (goto-char cmpl-symbol-start)
|
|
|
708 (forward-word 1)
|
|
|
709 (setq cmpl-symbol-start (point))
|
|
|
710 ))
|
|
|
711 ;; restore state
|
|
|
712 (goto-char cmpl-saved-point)
|
|
|
713 (set-syntax-table cmpl-saved-syntax)
|
|
|
714 ;; Return completion if the length is reasonable
|
|
|
715 (if (and (<= (cmpl-read-time-eval completion-min-length)
|
|
|
716 (- cmpl-symbol-end cmpl-symbol-start))
|
|
|
717 (<= (- cmpl-symbol-end cmpl-symbol-start)
|
|
|
718 (cmpl-read-time-eval completion-max-length)))
|
|
|
719 (buffer-substring cmpl-symbol-start cmpl-symbol-end))
|
|
|
720 )
|
|
|
721 (t
|
|
|
722 ;; restore table if no symbol
|
|
|
723 (set-syntax-table cmpl-saved-syntax)
|
|
|
724 nil)
|
|
|
725 ))
|
|
|
726
|
|
|
727 ;;; tests for symbol-before-point
|
|
|
728 ;;; `^' indicates cursor pos. where value is returned
|
|
|
729 ;;; simple-word-test
|
|
|
730 ;;; ^ --> nil
|
|
|
731 ;;; ^ --> nil
|
|
|
732 ;;; ^ --> simple-w
|
|
|
733 ;;; ^ --> simple-word-test
|
|
|
734 ;;; _harder_word_test_
|
|
|
735 ;;; ^ --> harder_word_test
|
|
|
736 ;;; ^ --> harder_word_test
|
|
|
737 ;;; ^ --> harder
|
|
|
738 ;;; .___....
|
|
|
739 ;;; --> nil
|
|
|
740
|
|
|
741 (defun symbol-under-or-before-point ()
|
|
|
742 ;;; This could be made slightly faster but it is better to avoid
|
|
|
743 ;;; copying all the code.
|
|
|
744 ;;; However, it is only used by the completion string prompter.
|
|
|
745 ;;; If it comes into common use, it could be rewritten.
|
|
|
746 (setq cmpl-saved-syntax (syntax-table))
|
|
|
747 (set-syntax-table cmpl-syntax-table)
|
|
|
748 (cond ((memq (char-syntax (following-char)) '(?w ?_))
|
|
|
749 (set-syntax-table cmpl-saved-syntax)
|
|
|
750 (symbol-under-point))
|
|
|
751 (t
|
|
|
752 (set-syntax-table cmpl-saved-syntax)
|
|
|
753 (symbol-before-point))
|
|
|
754 ))
|
|
|
755
|
|
|
756
|
|
|
757 (defun symbol-before-point-for-complete ()
|
|
|
758 ;; "Returns a string of the symbol immediately before point
|
|
|
759 ;; or nil if there isn't one. Like symbol-before-point but doesn't trim the
|
|
|
760 ;; end chars."
|
|
|
761 ;; Cursor is on following-char and after preceding-char
|
|
|
762 (setq cmpl-saved-syntax (syntax-table))
|
|
|
763 (set-syntax-table cmpl-syntax-table)
|
|
|
764 (cond ((memq (setq cmpl-preceding-syntax (char-syntax (preceding-char)))
|
|
|
765 '(?_ ?w))
|
|
|
766 (setq cmpl-symbol-end (point)
|
|
|
767 cmpl-symbol-start (scan-sexps (1+ cmpl-symbol-end) -1)
|
|
|
768 )
|
|
|
769 ;; remove chars to ignore at the start
|
|
|
770 (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
|
|
|
771 (goto-char cmpl-symbol-start)
|
|
|
772 (forward-word 1)
|
|
|
773 (setq cmpl-symbol-start (point))
|
|
|
774 (goto-char cmpl-symbol-end)
|
|
|
775 ))
|
|
|
776 ;; restore state
|
|
|
777 (set-syntax-table cmpl-saved-syntax)
|
|
|
778 ;; Return completion if the length is reasonable
|
|
|
779 (if (and (<= (cmpl-read-time-eval
|
|
|
780 completion-prefix-min-length)
|
|
|
781 (- cmpl-symbol-end cmpl-symbol-start))
|
|
|
782 (<= (- cmpl-symbol-end cmpl-symbol-start)
|
|
|
783 (cmpl-read-time-eval completion-max-length)))
|
|
|
784 (buffer-substring cmpl-symbol-start cmpl-symbol-end))
|
|
|
785 )
|
|
|
786 (t
|
|
|
787 ;; restore table if no symbol
|
|
|
788 (set-syntax-table cmpl-saved-syntax)
|
|
|
789 nil)
|
|
|
790 ))
|
|
|
791
|
|
|
792 ;;; tests for symbol-before-point-for-complete
|
|
|
793 ;;; `^' indicates cursor pos. where value is returned
|
|
|
794 ;;; simple-word-test
|
|
|
795 ;;; ^ --> nil
|
|
|
796 ;;; ^ --> nil
|
|
|
797 ;;; ^ --> simple-w
|
|
|
798 ;;; ^ --> simple-word-test
|
|
|
799 ;;; _harder_word_test_
|
|
|
800 ;;; ^ --> harder_word_test
|
|
|
801 ;;; ^ --> harder_word_test_
|
|
|
802 ;;; ^ --> harder_
|
|
|
803 ;;; .___....
|
|
|
804 ;;; --> nil
|
|
|
805
|
|
|
806
|
|
|
807
|
|
|
808 ;;;---------------------------------------------------------------------------
|
|
|
809 ;;; Statistics Recording
|
|
|
810 ;;;---------------------------------------------------------------------------
|
|
|
811
|
|
|
812 ;;; Note that the guts of this has been turned off. The guts
|
|
|
813 ;;; are in completion-stats.el.
|
|
|
814
|
|
|
815 ;;;-----------------------------------------------
|
|
|
816 ;;; Conditionalizing code on *record-cmpl-statistics-p*
|
|
|
817 ;;;-----------------------------------------------
|
|
|
818 ;;; All statistics code outside this block should use this
|
|
|
819 (defmacro cmpl-statistics-block (&rest body))
|
|
|
820 ;;; "Only executes body if we are recording statistics."
|
|
|
821 ;;; (list 'cond
|
|
|
822 ;;; (list* '*record-cmpl-statistics-p* body)
|
|
|
823 ;;; ))
|
|
|
824
|
|
|
825 ;;;-----------------------------------------------
|
|
|
826 ;;; Completion Sources
|
|
|
827 ;;;-----------------------------------------------
|
|
|
828
|
|
|
829 ;; ID numbers
|
|
|
830 (defconst cmpl-source-unknown 0)
|
|
|
831 (defconst cmpl-source-init-file 1)
|
|
|
832 (defconst cmpl-source-file-parsing 2)
|
|
|
833 (defconst cmpl-source-separator 3)
|
|
|
834 (defconst cmpl-source-cursor-moves 4)
|
|
|
835 (defconst cmpl-source-interactive 5)
|
|
|
836 (defconst cmpl-source-cdabbrev 6)
|
|
|
837 (defconst num-cmpl-sources 7)
|
|
|
838 (defvar current-completion-source cmpl-source-unknown)
|
|
|
839
|
|
|
840
|
|
|
841
|
|
|
842 ;;;---------------------------------------------------------------------------
|
|
|
843 ;;; Completion Method #2: dabbrev-expand style
|
|
|
844 ;;;---------------------------------------------------------------------------
|
|
|
845 ;;;
|
|
|
846 ;;; This method is used if there are no useful stored completions. It is
|
|
|
847 ;;; based on dabbrev-expand with these differences :
|
|
|
848 ;;; 1) Faster (we don't use regexps)
|
|
|
849 ;;; 2) case coercion handled correctly
|
|
|
850 ;;; This is called cdabbrev to differentiate it.
|
|
|
851 ;;; We simply search backwards through the file looking for words which
|
|
|
852 ;;; start with the same letters we are trying to complete.
|
|
|
853 ;;;
|
|
|
854
|
|
|
855 (defvar cdabbrev-completions-tried nil)
|
|
|
856 ;;; "A list of all the cdabbrev completions since the last reset.")
|
|
|
857
|
|
|
858 (defvar cdabbrev-current-point 0)
|
|
|
859 ;;; "The current point position the cdabbrev search is at.")
|
|
|
860
|
|
|
861 (defvar cdabbrev-current-window nil)
|
|
|
862 ;;; "The current window we are looking for cdabbrevs in. T if looking in
|
|
|
863 ;;; (other-buffer), NIL if no more cdabbrevs.")
|
|
|
864
|
|
|
865 (defvar cdabbrev-wrapped-p nil)
|
|
|
866 ;;; "T if the cdabbrev search has wrapped around the file.")
|
|
|
867
|
|
|
868 (defvar cdabbrev-abbrev-string "")
|
|
|
869 (defvar cdabbrev-start-point 0)
|
|
|
870 (defvar cdabbrev-stop-point)
|
|
|
871
|
|
|
872 ;;; Test strings for cdabbrev
|
|
|
873 ;;; cdat-upcase ;;same namestring
|
|
|
874 ;;; CDAT-UPCASE ;;ok
|
|
|
875 ;;; cdat2 ;;too short
|
|
|
876 ;;; cdat-1-2-3-4 ;;ok
|
|
|
877 ;;; a-cdat-1 ;;doesn't start correctly
|
|
|
878 ;;; cdat-simple ;;ok
|
|
|
879
|
|
|
880
|
|
|
881 (defun reset-cdabbrev (abbrev-string &optional initial-completions-tried)
|
|
|
882 "Resets the cdabbrev search to search for abbrev-string.
|
|
|
883 INITIAL-COMPLETIONS-TRIED is a list of downcased strings to ignore
|
|
|
884 during the search."
|
|
|
885 (setq cdabbrev-abbrev-string abbrev-string
|
|
|
886 cdabbrev-completions-tried
|
|
|
887 (cons (downcase abbrev-string) initial-completions-tried)
|
|
|
888 )
|
|
|
889 (reset-cdabbrev-window t)
|
|
|
890 )
|
|
|
891
|
|
|
892 (defun set-cdabbrev-buffer ()
|
|
|
893 ;; cdabbrev-current-window must not be NIL
|
|
|
894 (set-buffer (if (eq cdabbrev-current-window t)
|
|
|
895 (other-buffer)
|
|
|
896 (window-buffer cdabbrev-current-window)))
|
|
|
897 )
|
|
|
898
|
|
|
899
|
|
|
900 (defun reset-cdabbrev-window (&optional initializep)
|
|
|
901 "Resets the cdabbrev search to search for abbrev-string."
|
|
|
902 ;; Set the window
|
|
|
903 (cond (initializep
|
|
|
904 (setq cdabbrev-current-window (selected-window))
|
|
|
905 )
|
|
|
906 ((eq cdabbrev-current-window t)
|
|
|
907 ;; Everything has failed
|
|
|
908 (setq cdabbrev-current-window nil))
|
|
|
909 (cdabbrev-current-window
|
|
|
910 (setq cdabbrev-current-window (next-window cdabbrev-current-window))
|
|
|
911 (if (eq cdabbrev-current-window (selected-window))
|
|
|
912 ;; No more windows, try other buffer.
|
|
|
913 (setq cdabbrev-current-window t)))
|
|
|
914 )
|
|
|
915 (if cdabbrev-current-window
|
|
|
916 (save-excursion
|
|
|
917 (set-cdabbrev-buffer)
|
|
|
918 (setq cdabbrev-current-point (point)
|
|
|
919 cdabbrev-start-point cdabbrev-current-point
|
|
|
920 cdabbrev-stop-point
|
|
|
921 (if completion-search-distance
|
|
|
922 (max (point-min)
|
|
|
923 (- cdabbrev-start-point completion-search-distance))
|
|
|
924 (point-min))
|
|
|
925 cdabbrev-wrapped-p nil)
|
|
|
926 )))
|
|
|
927
|
|
|
928 (defun next-cdabbrev ()
|
|
|
929 "Return the next possible cdabbrev expansion or nil if there isn't one.
|
|
|
930 `reset-cdabbrev' must've been called already.
|
|
|
931 This is sensitive to `case-fold-search'."
|
|
|
932 ;; note that case-fold-search affects the behavior of this function
|
|
|
933 ;; Bug: won't pick up an expansion that starts at the top of buffer
|
|
|
934 (if cdabbrev-current-window
|
|
|
935 (let (saved-point
|
|
|
936 saved-syntax
|
|
|
937 (expansion nil)
|
|
|
938 downcase-expansion tried-list syntax saved-point-2)
|
|
|
939 (save-excursion
|
|
|
940 (unwind-protect
|
|
|
941 (progn
|
|
|
942 ;; Switch to current completion buffer
|
|
|
943 (set-cdabbrev-buffer)
|
|
|
944 ;; Save current buffer state
|
|
|
945 (setq saved-point (point)
|
|
|
946 saved-syntax (syntax-table))
|
|
|
947 ;; Restore completion state
|
|
|
948 (set-syntax-table cmpl-syntax-table)
|
|
|
949 (goto-char cdabbrev-current-point)
|
|
|
950 ;; Loop looking for completions
|
|
|
951 (while
|
|
|
952 ;; This code returns t if it should loop again
|
|
|
953 (cond
|
|
|
954 (;; search for the string
|
|
|
955 (search-backward cdabbrev-abbrev-string cdabbrev-stop-point t)
|
|
|
956 ;; return nil if the completion is valid
|
|
|
957 (not
|
|
|
958 (and
|
|
|
959 ;; does it start with a separator char ?
|
|
|
960 (or (= (setq syntax (char-syntax (preceding-char))) ? )
|
|
|
961 (and (= syntax ?w)
|
|
|
962 ;; symbol char to ignore at end. Are we at end ?
|
|
|
963 (progn
|
|
|
964 (setq saved-point-2 (point))
|
|
|
965 (forward-word -1)
|
|
|
966 (prog1
|
|
|
967 (= (char-syntax (preceding-char)) ? )
|
|
|
968 (goto-char saved-point-2)
|
|
|
969 ))))
|
|
|
970 ;; is the symbol long enough ?
|
|
|
971 (setq expansion (symbol-under-point))
|
|
|
972 ;; have we not tried this one before
|
|
|
973 (progn
|
|
|
974 ;; See if we've already used it
|
|
|
975 (setq tried-list cdabbrev-completions-tried
|
|
|
976 downcase-expansion (downcase expansion))
|
|
|
977 (while (and tried-list
|
|
|
978 (not (string-equal downcase-expansion
|
|
|
979 (car tried-list))))
|
|
|
980 ;; Already tried, don't choose this one
|
|
|
981 (setq tried-list (cdr tried-list))
|
|
|
982 )
|
|
|
983 ;; at this point tried-list will be nil if this
|
|
|
984 ;; expansion has not yet been tried
|
|
|
985 (if tried-list
|
|
|
986 (setq expansion nil)
|
|
|
987 t)
|
|
|
988 ))))
|
|
|
989 ;; search failed
|
|
|
990 (cdabbrev-wrapped-p
|
|
|
991 ;; If already wrapped, then we've failed completely
|
|
|
992 nil)
|
|
|
993 (t
|
|
|
994 ;; need to wrap
|
|
|
995 (goto-char (setq cdabbrev-current-point
|
|
|
996 (if completion-search-distance
|
|
|
997 (min (point-max) (+ cdabbrev-start-point completion-search-distance))
|
|
|
998 (point-max))))
|
|
|
999
|
|
|
1000 (setq cdabbrev-wrapped-p t))
|
|
|
1001 ))
|
|
|
1002 ;; end of while loop
|
|
|
1003 (cond (expansion
|
|
|
1004 ;; successful
|
|
|
1005 (setq cdabbrev-completions-tried
|
|
|
1006 (cons downcase-expansion cdabbrev-completions-tried)
|
|
|
1007 cdabbrev-current-point (point))))
|
|
|
1008 )
|
|
|
1009 (set-syntax-table saved-syntax)
|
|
|
1010 (goto-char saved-point)
|
|
|
1011 ))
|
|
|
1012 ;; If no expansion, go to next window
|
|
|
1013 (cond (expansion)
|
|
|
1014 (t (reset-cdabbrev-window)
|
|
|
1015 (next-cdabbrev))))))
|
|
|
1016
|
|
|
1017 ;;; The following must be eval'd in the minibuffer ::
|
|
|
1018 ;;; (reset-cdabbrev "cdat")
|
|
|
1019 ;;; (next-cdabbrev) --> "cdat-simple"
|
|
|
1020 ;;; (next-cdabbrev) --> "cdat-1-2-3-4"
|
|
|
1021 ;;; (next-cdabbrev) --> "CDAT-UPCASE"
|
|
|
1022 ;;; (next-cdabbrev) --> "cdat-wrapping"
|
|
|
1023 ;;; (next-cdabbrev) --> "cdat_start_sym"
|
|
|
1024 ;;; (next-cdabbrev) --> nil
|
|
|
1025 ;;; (next-cdabbrev) --> nil
|
|
|
1026 ;;; (next-cdabbrev) --> nil
|
|
|
1027
|
|
|
1028 ;;; _cdat_start_sym
|
|
|
1029 ;;; cdat-wrapping
|
|
|
1030
|
|
|
1031
|
|
|
1032 ;;;---------------------------------------------------------------------------
|
|
|
1033 ;;; Completion Database
|
|
|
1034 ;;;---------------------------------------------------------------------------
|
|
|
1035
|
|
|
1036 ;;; We use two storage modes for the two search types ::
|
|
|
1037 ;;; 1) Prefix {cmpl-prefix-obarray} for looking up possible completions
|
|
|
1038 ;;; Used by search-completion-next
|
|
|
1039 ;;; the value of the symbol is nil or a cons of head and tail pointers
|
|
|
1040 ;;; 2) Interning {cmpl-obarray} to see if it's in the database
|
|
|
1041 ;;; Used by find-exact-completion, completion-in-database-p
|
|
|
1042 ;;; The value of the symbol is the completion entry
|
|
|
1043
|
|
|
1044 ;;; bad things may happen if this length is changed due to the way
|
|
|
1045 ;;; GNU implements obarrays
|
|
|
1046 (defconst cmpl-obarray-length 511)
|
|
|
1047
|
|
|
1048 (defvar cmpl-prefix-obarray (make-vector cmpl-obarray-length 0)
|
|
|
1049 "An obarray used to store the downcased completion prefixes.
|
|
|
1050 Each symbol is bound to a list of completion entries.")
|
|
|
1051
|
|
|
1052 (defvar cmpl-obarray (make-vector cmpl-obarray-length 0)
|
|
|
1053 "An obarray used to store the downcased completions.
|
|
|
1054 Each symbol is bound to a single completion entry.")
|
|
|
1055
|
|
|
1056 ;;;-----------------------------------------------
|
|
|
1057 ;;; Completion Entry Structure Definition
|
|
|
1058 ;;;-----------------------------------------------
|
|
|
1059
|
|
|
1060 ;;; A completion entry is a LIST of string, prefix-symbol num-uses, and
|
|
|
1061 ;;; last-use-time (the time the completion was last used)
|
|
|
1062 ;;; last-use-time is T if the string should be kept permanently
|
|
|
1063 ;;; num-uses is incremented everytime the completion is used.
|
|
|
1064
|
|
|
1065 ;;; We chose lists because (car foo) is faster than (aref foo 0) and the
|
|
|
1066 ;;; creation time is about the same.
|
|
|
1067
|
|
|
1068 ;;; READER MACROS
|
|
|
1069
|
|
|
1070 (defmacro completion-string (completion-entry)
|
|
|
1071 (list 'car completion-entry))
|
|
|
1072
|
|
|
1073 (defmacro completion-num-uses (completion-entry)
|
|
|
1074 ;; "The number of times it has used. Used to decide whether to save
|
|
|
1075 ;; it."
|
|
|
1076 (list 'car (list 'cdr completion-entry)))
|
|
|
1077
|
|
|
1078 (defmacro completion-last-use-time (completion-entry)
|
|
|
1079 ;; "The time it was last used. In hours since origin. Used to decide
|
|
|
1080 ;; whether to save it. T if one should always save it."
|
|
|
1081 (list 'nth 2 completion-entry))
|
|
|
1082
|
|
|
1083 (defmacro completion-source (completion-entry)
|
|
|
1084 (list 'nth 3 completion-entry))
|
|
|
1085
|
|
|
1086 ;;; WRITER MACROS
|
|
|
1087 (defmacro set-completion-string (completion-entry string)
|
|
|
1088 (list 'setcar completion-entry string))
|
|
|
1089
|
|
|
1090 (defmacro set-completion-num-uses (completion-entry num-uses)
|
|
|
1091 (list 'setcar (list 'cdr completion-entry) num-uses))
|
|
|
1092
|
|
|
1093 (defmacro set-completion-last-use-time (completion-entry last-use-time)
|
|
|
1094 (list 'setcar (list 'cdr (list 'cdr completion-entry)) last-use-time))
|
|
|
1095
|
|
|
1096 ;;; CONSTRUCTOR
|
|
|
1097 (defun make-completion (string)
|
|
|
1098 "Returns a list of a completion entry."
|
|
|
1099 (list (list string 0 nil current-completion-source)))
|
|
|
1100
|
|
|
1101 ;; Obsolete
|
|
|
1102 ;;(defmacro cmpl-prefix-entry-symbol (completion-entry)
|
|
|
1103 ;; (list 'car (list 'cdr completion-entry)))
|
|
|
1104
|
|
|
1105
|
|
|
1106
|
|
|
1107 ;;;-----------------------------------------------
|
|
|
1108 ;;; Prefix symbol entry definition
|
|
|
1109 ;;;-----------------------------------------------
|
|
|
1110 ;;; A cons of (head . tail)
|
|
|
1111
|
|
|
1112 ;;; READER Macros
|
|
|
1113
|
|
|
1114 (defmacro cmpl-prefix-entry-head (prefix-entry)
|
|
|
1115 (list 'car prefix-entry))
|
|
|
1116
|
|
|
1117 (defmacro cmpl-prefix-entry-tail (prefix-entry)
|
|
|
1118 (list 'cdr prefix-entry))
|
|
|
1119
|
|
|
1120 ;;; WRITER Macros
|
|
|
1121
|
|
|
1122 (defmacro set-cmpl-prefix-entry-head (prefix-entry new-head)
|
|
|
1123 (list 'setcar prefix-entry new-head))
|
|
|
1124
|
|
|
1125 (defmacro set-cmpl-prefix-entry-tail (prefix-entry new-tail)
|
|
|
1126 (list 'setcdr prefix-entry new-tail))
|
|
|
1127
|
|
|
1128 ;;; Constructor
|
|
|
1129
|
|
|
1130 (defun make-cmpl-prefix-entry (completion-entry-list)
|
|
|
1131 "Makes a new prefix entry containing only completion-entry."
|
|
|
1132 (cons completion-entry-list completion-entry-list))
|
|
|
1133
|
|
|
1134 ;;;-----------------------------------------------
|
|
|
1135 ;;; Completion Database - Utilities
|
|
|
1136 ;;;-----------------------------------------------
|
|
|
1137
|
|
|
1138 (defun clear-all-completions ()
|
|
|
1139 "Initializes the completion storage. All existing completions are lost."
|
|
|
1140 (interactive)
|
|
|
1141 (setq cmpl-prefix-obarray (make-vector cmpl-obarray-length 0))
|
|
|
1142 (setq cmpl-obarray (make-vector cmpl-obarray-length 0))
|
|
|
1143 (cmpl-statistics-block
|
|
|
1144 (record-clear-all-completions))
|
|
|
1145 )
|
|
|
1146
|
|
|
1147 (defvar completions-list-return-value)
|
|
|
1148
|
|
|
1149 (defun list-all-completions ()
|
|
|
1150 "Returns a list of all the known completion entries."
|
|
|
1151 (let ((completions-list-return-value nil))
|
|
|
1152 (mapatoms 'list-all-completions-1 cmpl-prefix-obarray)
|
|
|
1153 completions-list-return-value))
|
|
|
1154
|
|
|
1155 (defun list-all-completions-1 (prefix-symbol)
|
|
|
1156 (if (boundp prefix-symbol)
|
|
|
1157 (setq completions-list-return-value
|
|
|
1158 (append (cmpl-prefix-entry-head (symbol-value prefix-symbol))
|
|
|
1159 completions-list-return-value))))
|
|
|
1160
|
|
|
1161 (defun list-all-completions-by-hash-bucket ()
|
|
|
1162 "Return list of lists of known completion entries, organized by hash bucket."
|
|
|
1163 (let ((completions-list-return-value nil))
|
|
|
1164 (mapatoms 'list-all-completions-by-hash-bucket-1 cmpl-prefix-obarray)
|
|
|
1165 completions-list-return-value))
|
|
|
1166
|
|
|
1167 (defun list-all-completions-by-hash-bucket-1 (prefix-symbol)
|
|
|
1168 (if (boundp prefix-symbol)
|
|
|
1169 (setq completions-list-return-value
|
|
|
1170 (cons (cmpl-prefix-entry-head (symbol-value prefix-symbol))
|
|
|
1171 completions-list-return-value))))
|
|
|
1172
|
|
|
1173
|
|
|
1174 ;;;-----------------------------------------------
|
|
|
1175 ;;; Updating the database
|
|
|
1176 ;;;-----------------------------------------------
|
|
|
1177 ;;;
|
|
|
1178 ;;; These are the internal functions used to update the datebase
|
|
|
1179 ;;;
|
|
|
1180 ;;;
|
|
|
1181 (defvar completion-to-accept nil)
|
|
|
1182 ;;"Set to a string that is pending its acceptance."
|
|
|
1183 ;; this checked by the top level reading functions
|
|
|
1184
|
|
|
1185 (defvar cmpl-db-downcase-string nil)
|
|
|
1186 ;; "Setup by find-exact-completion, etc. The given string, downcased."
|
|
|
1187 (defvar cmpl-db-symbol nil)
|
|
|
1188 ;; "The interned symbol corresponding to cmpl-db-downcase-string.
|
|
|
1189 ;; Set up by cmpl-db-symbol."
|
|
|
1190 (defvar cmpl-db-prefix-symbol nil)
|
|
|
1191 ;; "The interned prefix symbol corresponding to cmpl-db-downcase-string."
|
|
|
1192 (defvar cmpl-db-entry nil)
|
|
|
1193 (defvar cmpl-db-debug-p nil
|
|
|
1194 "Set to T if you want to debug the database.")
|
|
|
1195
|
|
|
1196 ;;; READS
|
|
|
1197 (defun find-exact-completion (string)
|
|
|
1198 "Returns the completion entry for string or nil.
|
|
|
1199 Sets up `cmpl-db-downcase-string' and `cmpl-db-symbol'."
|
|
|
1200 (and (boundp (setq cmpl-db-symbol
|
|
|
1201 (intern (setq cmpl-db-downcase-string (downcase string))
|
|
|
1202 cmpl-obarray)))
|
|
|
1203 (symbol-value cmpl-db-symbol)
|
|
|
1204 ))
|
|
|
1205
|
|
|
1206 (defun find-cmpl-prefix-entry (prefix-string)
|
|
|
1207 "Returns the prefix entry for string.
|
|
|
1208 Sets `cmpl-db-prefix-symbol'.
|
|
|
1209 Prefix-string must be exactly `completion-prefix-min-length' long
|
|
|
1210 and downcased. Sets up `cmpl-db-prefix-symbol'."
|
|
|
1211 (and (boundp (setq cmpl-db-prefix-symbol
|
|
|
1212 (intern prefix-string cmpl-prefix-obarray)))
|
|
|
1213 (symbol-value cmpl-db-prefix-symbol)))
|
|
|
1214
|
|
|
1215 (defvar inside-locate-completion-entry nil)
|
|
|
1216 ;; used to trap lossage in silent error correction
|
|
|
1217
|
|
|
1218 (defun locate-completion-entry (completion-entry prefix-entry)
|
|
|
1219 "Locates the completion entry.
|
|
|
1220 Returns a pointer to the element before the completion entry or nil if
|
|
|
1221 the completion entry is at the head.
|
|
|
1222 Must be called after `find-exact-completion'."
|
|
|
1223 (let ((prefix-list (cmpl-prefix-entry-head prefix-entry))
|
|
|
1224 next-prefix-list
|
|
|
1225 )
|
|
|
1226 (cond
|
|
|
1227 ((not (eq (car prefix-list) completion-entry))
|
|
|
1228 ;; not already at head
|
|
|
1229 (while (and prefix-list
|
|
|
1230 (not (eq completion-entry
|
|
|
1231 (car (setq next-prefix-list (cdr prefix-list)))
|
|
|
1232 )))
|
|
|
1233 (setq prefix-list next-prefix-list))
|
|
|
1234 (cond (;; found
|
|
|
1235 prefix-list)
|
|
|
1236 ;; Didn't find it. Database is messed up.
|
|
|
1237 (cmpl-db-debug-p
|
|
|
1238 ;; not found, error if debug mode
|
|
|
1239 (error "Completion entry exists but not on prefix list - %s"
|
|
|
1240 completion-string))
|
|
|
1241 (inside-locate-completion-entry
|
|
|
1242 ;; recursive error: really scrod
|
|
|
1243 (locate-completion-db-error))
|
|
|
1244 (t
|
|
|
1245 ;; Patch out
|
|
|
1246 (set cmpl-db-symbol nil)
|
|
|
1247 ;; Retry
|
|
|
1248 (locate-completion-entry-retry completion-entry)
|
|
|
1249 ))))))
|
|
|
1250
|
|
|
1251 (defun locate-completion-entry-retry (old-entry)
|
|
|
1252 (let ((inside-locate-completion-entry t))
|
|
|
1253 (add-completion (completion-string old-entry)
|
|
|
1254 (completion-num-uses old-entry)
|
|
|
1255 (completion-last-use-time old-entry))
|
|
|
1256 (let* ((cmpl-entry (find-exact-completion (completion-string old-entry)))
|
|
|
1257 (pref-entry
|
|
|
1258 (if cmpl-entry
|
|
|
1259 (find-cmpl-prefix-entry
|
|
|
1260 (substring cmpl-db-downcase-string
|
|
|
1261 0 completion-prefix-min-length))))
|
|
|
1262 )
|
|
|
1263 (if (and cmpl-entry pref-entry)
|
|
|
1264 ;; try again
|
|
|
1265 (locate-completion-entry cmpl-entry pref-entry)
|
|
|
1266 ;; still losing
|
|
|
1267 (locate-completion-db-error))
|
|
|
1268 )))
|
|
|
1269
|
|
|
1270 (defun locate-completion-db-error ()
|
|
|
1271 ;; recursive error: really scrod
|
|
|
1272 (error "Completion database corrupted. Try M-x clear-all-completions. Send bug report.")
|
|
|
1273 )
|
|
|
1274
|
|
|
1275 ;;; WRITES
|
|
|
1276 (defun add-completion-to-tail-if-new (string)
|
|
|
1277 "If STRING is not in the database add it to appropriate prefix list.
|
|
|
1278 STRING is added to the end of the appropriate prefix list with
|
|
|
1279 num-uses = 0. The database is unchanged if it is there. STRING must be
|
|
|
1280 longer than `completion-prefix-min-length'.
|
|
|
1281 This must be very fast.
|
|
|
1282 Returns the completion entry."
|
|
|
1283 (or (find-exact-completion string)
|
|
|
1284 ;; not there
|
|
|
1285 (let (;; create an entry
|
|
|
1286 (entry (make-completion string))
|
|
|
1287 ;; setup the prefix
|
|
|
1288 (prefix-entry (find-cmpl-prefix-entry
|
|
|
1289 (substring cmpl-db-downcase-string 0
|
|
|
1290 (cmpl-read-time-eval
|
|
|
1291 completion-prefix-min-length))))
|
|
|
1292 )
|
|
|
1293 ;; The next two forms should happen as a unit (atomically) but
|
|
|
1294 ;; no fatal errors should result if that is not the case.
|
|
|
1295 (cond (prefix-entry
|
|
|
1296 ;; These two should be atomic, but nothing fatal will happen
|
|
|
1297 ;; if they're not.
|
|
|
1298 (setcdr (cmpl-prefix-entry-tail prefix-entry) entry)
|
|
|
1299 (set-cmpl-prefix-entry-tail prefix-entry entry))
|
|
|
1300 (t
|
|
|
1301 (set cmpl-db-prefix-symbol (make-cmpl-prefix-entry entry))
|
|
|
1302 ))
|
|
|
1303 ;; statistics
|
|
|
1304 (cmpl-statistics-block
|
|
|
1305 (note-added-completion))
|
|
|
1306 ;; set symbol
|
|
|
1307 (set cmpl-db-symbol (car entry))
|
|
|
1308 )))
|
|
|
1309
|
|
|
1310 (defun add-completion-to-head (completion-string)
|
|
|
1311 "If COMPLETION-STRING is not in the database, add it to prefix list.
|
|
|
1312 We add COMPLETION-STRING to the head of the appropriate prefix list,
|
|
|
1313 or it to the head of the list.
|
|
|
1314 COMPLETION-STRING must be longer than `completion-prefix-min-length'.
|
|
|
1315 Updates the saved string with the supplied string.
|
|
|
1316 This must be very fast.
|
|
|
1317 Returns the completion entry."
|
|
|
1318 ;; Handle pending acceptance
|
|
|
1319 (if completion-to-accept (accept-completion))
|
|
|
1320 ;; test if already in database
|
|
|
1321 (if (setq cmpl-db-entry (find-exact-completion completion-string))
|
|
|
1322 ;; found
|
|
|
1323 (let* ((prefix-entry (find-cmpl-prefix-entry
|
|
|
1324 (substring cmpl-db-downcase-string 0
|
|
|
1325 (cmpl-read-time-eval
|
|
|
1326 completion-prefix-min-length))))
|
|
|
1327 (splice-ptr (locate-completion-entry cmpl-db-entry prefix-entry))
|
|
|
1328 (cmpl-ptr (cdr splice-ptr))
|
|
|
1329 )
|
|
|
1330 ;; update entry
|
|
|
1331 (set-completion-string cmpl-db-entry completion-string)
|
|
|
1332 ;; move to head (if necessary)
|
|
|
1333 (cond (splice-ptr
|
|
|
1334 ;; These should all execute atomically but it is not fatal if
|
|
|
1335 ;; they don't.
|
|
|
1336 ;; splice it out
|
|
|
1337 (or (setcdr splice-ptr (cdr cmpl-ptr))
|
|
|
1338 ;; fix up tail if necessary
|
|
|
1339 (set-cmpl-prefix-entry-tail prefix-entry splice-ptr))
|
|
|
1340 ;; splice in at head
|
|
|
1341 (setcdr cmpl-ptr (cmpl-prefix-entry-head prefix-entry))
|
|
|
1342 (set-cmpl-prefix-entry-head prefix-entry cmpl-ptr)
|
|
|
1343 ))
|
|
|
1344 cmpl-db-entry)
|
|
|
1345 ;; not there
|
|
|
1346 (let (;; create an entry
|
|
|
1347 (entry (make-completion completion-string))
|
|
|
1348 ;; setup the prefix
|
|
|
1349 (prefix-entry (find-cmpl-prefix-entry
|
|
|
1350 (substring cmpl-db-downcase-string 0
|
|
|
1351 (cmpl-read-time-eval
|
|
|
1352 completion-prefix-min-length))))
|
|
|
1353 )
|
|
|
1354 (cond (prefix-entry
|
|
|
1355 ;; Splice in at head
|
|
|
1356 (setcdr entry (cmpl-prefix-entry-head prefix-entry))
|
|
|
1357 (set-cmpl-prefix-entry-head prefix-entry entry))
|
|
|
1358 (t
|
|
|
1359 ;; Start new prefix entry
|
|
|
1360 (set cmpl-db-prefix-symbol (make-cmpl-prefix-entry entry))
|
|
|
1361 ))
|
|
|
1362 ;; statistics
|
|
|
1363 (cmpl-statistics-block
|
|
|
1364 (note-added-completion))
|
|
|
1365 ;; Add it to the symbol
|
|
|
1366 (set cmpl-db-symbol (car entry))
|
|
|
1367 )))
|
|
|
1368
|
|
|
1369 (defun delete-completion (completion-string)
|
|
|
1370 "Deletes the completion from the database.
|
|
|
1371 String must be longer than `completion-prefix-min-length'."
|
|
|
1372 ;; Handle pending acceptance
|
|
|
1373 (if completion-to-accept (accept-completion))
|
|
|
1374 (if (setq cmpl-db-entry (find-exact-completion completion-string))
|
|
|
1375 ;; found
|
|
|
1376 (let* ((prefix-entry (find-cmpl-prefix-entry
|
|
|
1377 (substring cmpl-db-downcase-string 0
|
|
|
1378 (cmpl-read-time-eval
|
|
|
1379 completion-prefix-min-length))))
|
|
|
1380 (splice-ptr (locate-completion-entry cmpl-db-entry prefix-entry))
|
|
|
1381 )
|
|
|
1382 ;; delete symbol reference
|
|
|
1383 (set cmpl-db-symbol nil)
|
|
|
1384 ;; remove from prefix list
|
|
|
1385 (cond (splice-ptr
|
|
|
1386 ;; not at head
|
|
|
1387 (or (setcdr splice-ptr (cdr (cdr splice-ptr)))
|
|
|
1388 ;; fix up tail if necessary
|
|
|
1389 (set-cmpl-prefix-entry-tail prefix-entry splice-ptr))
|
|
|
1390 )
|
|
|
1391 (t
|
|
|
1392 ;; at head
|
|
|
1393 (or (set-cmpl-prefix-entry-head
|
|
|
1394 prefix-entry (cdr (cmpl-prefix-entry-head prefix-entry)))
|
|
|
1395 ;; List is now empty
|
|
|
1396 (set cmpl-db-prefix-symbol nil))
|
|
|
1397 ))
|
|
|
1398 (cmpl-statistics-block
|
|
|
1399 (note-completion-deleted))
|
|
|
1400 )
|
|
|
1401 (error "Unknown completion `%s'" completion-string)
|
|
|
1402 ))
|
|
|
1403
|
|
|
1404 ;;; Tests --
|
|
|
1405 ;;; - Add and Find -
|
|
|
1406 ;;; (add-completion-to-head "banana") --> ("banana" 0 nil 0)
|
|
|
1407 ;;; (find-exact-completion "banana") --> ("banana" 0 nil 0)
|
|
|
1408 ;;; (find-exact-completion "bana") --> nil
|
|
|
1409 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...))
|
|
|
1410 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banana" ...))
|
|
|
1411 ;;; (add-completion-to-head "banish") --> ("banish" 0 nil 0)
|
|
|
1412 ;;; (find-exact-completion "banish") --> ("banish" 0 nil 0)
|
|
|
1413 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banish" ...) ("banana" ...))
|
|
|
1414 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banana" ...))
|
|
|
1415 ;;; (add-completion-to-head "banana") --> ("banana" 0 nil 0)
|
|
|
1416 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...) ("banish" ...))
|
|
|
1417 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banish" ...))
|
|
|
1418 ;;;
|
|
|
1419 ;;; - Deleting -
|
|
|
1420 ;;; (add-completion-to-head "banner") --> ("banner" 0 nil 0)
|
|
|
1421 ;;; (delete-completion "banner")
|
|
|
1422 ;;; (find-exact-completion "banner") --> nil
|
|
|
1423 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...) ("banish" ...))
|
|
|
1424 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banish" ...))
|
|
|
1425 ;;; (add-completion-to-head "banner") --> ("banner" 0 nil 0)
|
|
|
1426 ;;; (delete-completion "banana")
|
|
|
1427 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banner" ...) ("banish" ...))
|
|
|
1428 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banish" ...))
|
|
|
1429 ;;; (delete-completion "banner")
|
|
|
1430 ;;; (delete-completion "banish")
|
|
|
1431 ;;; (find-cmpl-prefix-entry "ban") --> nil
|
|
|
1432 ;;; (delete-completion "banner") --> error
|
|
|
1433 ;;;
|
|
|
1434 ;;; - Tail -
|
|
|
1435 ;;; (add-completion-to-tail-if-new "banana") --> ("banana" 0 nil 0)
|
|
|
1436 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...))
|
|
|
1437 ;;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banana" ...))
|
|
|
1438 ;;; (add-completion-to-tail-if-new "banish") --> ("banish" 0 nil 0)
|
|
|
1439 ;;; (car (find-cmpl-prefix-entry "ban")) -->(("banana" ...) ("banish" ...))
|
|
|
1440 ;;; (cdr (find-cmpl-prefix-entry "ban")) -->(("banish" ...))
|
|
|
1441 ;;;
|
|
|
1442
|
|
|
1443
|
|
|
1444 ;;;---------------------------------------------------------------------------
|
|
|
1445 ;;; Database Update :: Interface level routines
|
|
|
1446 ;;;---------------------------------------------------------------------------
|
|
|
1447 ;;;
|
|
|
1448 ;;; These lie on top of the database ref. functions but below the standard
|
|
|
1449 ;;; user interface level
|
|
|
1450
|
|
|
1451
|
|
|
1452 (defun interactive-completion-string-reader (prompt)
|
|
|
1453 (let* ((default (symbol-under-or-before-point))
|
|
|
1454 (new-prompt
|
|
|
1455 (if default
|
|
|
1456 (format "%s: (default: %s) " prompt default)
|
|
|
1457 (format "%s: " prompt))
|
|
|
1458 )
|
|
|
1459 (read (completing-read new-prompt cmpl-obarray))
|
|
|
1460 )
|
|
|
1461 (if (zerop (length read)) (setq read (or default "")))
|
|
|
1462 (list read)
|
|
|
1463 ))
|
|
|
1464
|
|
|
1465 (defun check-completion-length (string)
|
|
|
1466 (if (< (length string) completion-min-length)
|
|
|
1467 (error "The string `%s' is too short to be saved as a completion"
|
|
|
1468 string)
|
|
|
1469 (list string)))
|
|
|
1470
|
|
|
1471 (defun add-completion (string &optional num-uses last-use-time)
|
|
|
1472 "Add STRING to completion list, or move it to head of list.
|
|
|
1473 The completion is altered appropriately if num-uses and/or last-use-time is
|
|
|
1474 specified."
|
|
|
1475 (interactive (interactive-completion-string-reader "Completion to add"))
|
|
|
1476 (check-completion-length string)
|
|
|
1477 (let* ((current-completion-source (if (interactive-p)
|
|
|
1478 cmpl-source-interactive
|
|
|
1479 current-completion-source))
|
|
|
1480 (entry (add-completion-to-head string)))
|
|
|
1481
|
|
|
1482 (if num-uses (set-completion-num-uses entry num-uses))
|
|
|
1483 (if last-use-time
|
|
|
1484 (set-completion-last-use-time entry last-use-time))
|
|
|
1485 ))
|
|
|
1486
|
|
|
1487 (defun add-permanent-completion (string)
|
|
|
1488 "Add STRING if it isn't already listed, and mark it permanent."
|
|
|
1489 (interactive
|
|
|
1490 (interactive-completion-string-reader "Completion to add permanently"))
|
|
|
1491 (let ((current-completion-source (if (interactive-p)
|
|
|
1492 cmpl-source-interactive
|
|
|
1493 current-completion-source))
|
|
|
1494 )
|
|
|
1495 (add-completion string nil t)
|
|
|
1496 ))
|
|
|
1497
|
|
|
1498 (defun kill-completion (string)
|
|
|
1499 (interactive (interactive-completion-string-reader "Completion to kill"))
|
|
|
1500 (check-completion-length string)
|
|
|
1501 (delete-completion string)
|
|
|
1502 )
|
|
|
1503
|
|
|
1504 (defun accept-completion ()
|
|
|
1505 "Accepts the pending completion in `completion-to-accept'.
|
|
|
1506 This bumps num-uses. Called by `add-completion-to-head' and
|
|
|
1507 `completion-search-reset'."
|
|
|
1508 (let ((string completion-to-accept)
|
|
|
1509 ;; if this is added afresh here, then it must be a cdabbrev
|
|
|
1510 (current-completion-source cmpl-source-cdabbrev)
|
|
|
1511 entry
|
|
|
1512 )
|
|
|
1513 (setq completion-to-accept nil)
|
|
|
1514 (setq entry (add-completion-to-head string))
|
|
|
1515 (set-completion-num-uses entry (1+ (completion-num-uses entry)))
|
|
|
1516 (setq cmpl-completions-accepted-p t)
|
|
|
1517 ))
|
|
|
1518
|
|
|
1519 (defun use-completion-under-point ()
|
|
|
1520 "Add the completion symbol underneath the point into the completion buffer."
|
|
|
1521 (let ((string (and enable-completion (symbol-under-point)))
|
|
|
1522 (current-completion-source cmpl-source-cursor-moves))
|
|
|
1523 (if string (add-completion-to-head string))))
|
|
|
1524
|
|
|
1525 (defun use-completion-before-point ()
|
|
|
1526 "Add the completion symbol before point into the completion buffer."
|
|
|
1527 (let ((string (and enable-completion (symbol-before-point)))
|
|
|
1528 (current-completion-source cmpl-source-cursor-moves))
|
|
|
1529 (if string (add-completion-to-head string))))
|
|
|
1530
|
|
|
1531 (defun use-completion-under-or-before-point ()
|
|
|
1532 "Add the completion symbol before point into the completion buffer."
|
|
|
1533 (let ((string (and enable-completion (symbol-under-or-before-point)))
|
|
|
1534 (current-completion-source cmpl-source-cursor-moves))
|
|
|
1535 (if string (add-completion-to-head string))))
|
|
|
1536
|
|
|
1537 (defun use-completion-before-separator ()
|
|
|
1538 "Add the completion symbol before point into the completion buffer.
|
|
|
1539 Completions added this way will automatically be saved if
|
|
|
1540 `completion-on-separator-character' is non-nil."
|
|
|
1541 (let ((string (and enable-completion (symbol-before-point)))
|
|
|
1542 (current-completion-source cmpl-source-separator)
|
|
|
1543 entry)
|
|
|
1544 (cmpl-statistics-block
|
|
|
1545 (note-separator-character string)
|
|
|
1546 )
|
|
|
1547 (cond (string
|
|
|
1548 (setq entry (add-completion-to-head string))
|
|
|
1549 (if (and completion-on-separator-character
|
|
|
1550 (zerop (completion-num-uses entry)))
|
|
|
1551 (progn
|
|
|
1552 (set-completion-num-uses entry 1)
|
|
|
1553 (setq cmpl-completions-accepted-p t)))))
|
|
|
1554 ))
|
|
|
1555
|
|
|
1556 ;;; Tests --
|
|
|
1557 ;;; - Add and Find -
|
|
|
1558 ;;; (add-completion "banana" 5 10)
|
|
|
1559 ;;; (find-exact-completion "banana") --> ("banana" 5 10 0)
|
|
|
1560 ;;; (add-completion "banana" 6)
|
|
|
1561 ;;; (find-exact-completion "banana") --> ("banana" 6 10 0)
|
|
|
1562 ;;; (add-completion "banish")
|
|
|
1563 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banish" ...) ("banana" ...))
|
|
|
1564 ;;;
|
|
|
1565 ;;; - Accepting -
|
|
|
1566 ;;; (setq completion-to-accept "banana")
|
|
|
1567 ;;; (accept-completion)
|
|
|
1568 ;;; (find-exact-completion "banana") --> ("banana" 7 10)
|
|
|
1569 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...) ("banish" ...))
|
|
|
1570 ;;; (setq completion-to-accept "banish")
|
|
|
1571 ;;; (add-completion "banner")
|
|
|
1572 ;;; (car (find-cmpl-prefix-entry "ban"))
|
|
|
1573 ;;; --> (("banner" ...) ("banish" 1 ...) ("banana" 7 ...))
|
|
|
1574 ;;;
|
|
|
1575 ;;; - Deleting -
|
|
|
1576 ;;; (kill-completion "banish")
|
|
|
1577 ;;; (car (find-cmpl-prefix-entry "ban")) --> (("banner" ...) ("banana" ...))
|
|
|
1578
|
|
|
1579
|
|
|
1580 ;;;---------------------------------------------------------------------------
|
|
|
1581 ;;; Searching the database
|
|
|
1582 ;;;---------------------------------------------------------------------------
|
|
|
1583 ;;; Functions outside this block must call completion-search-reset followed
|
|
|
1584 ;;; by calls to completion-search-next or completion-search-peek
|
|
|
1585 ;;;
|
|
|
1586
|
|
|
1587 ;;; Status variables
|
|
|
1588 ;; Commented out to improve loading speed
|
|
|
1589 (defvar cmpl-test-string "")
|
|
|
1590 ;; "The current string used by completion-search-next."
|
|
|
1591 (defvar cmpl-test-regexp "")
|
|
|
1592 ;; "The current regexp used by completion-search-next.
|
|
|
1593 ;; (derived from cmpl-test-string)"
|
|
|
1594 (defvar cmpl-last-index 0)
|
|
|
1595 ;; "The last index that completion-search-next was called with."
|
|
|
1596 (defvar cmpl-cdabbrev-reset-p nil)
|
|
|
1597 ;; "Set to t when cdabbrevs have been reset."
|
|
|
1598 (defvar cmpl-next-possibilities nil)
|
|
|
1599 ;; "A pointer to the element BEFORE the next set of possible completions.
|
|
|
1600 ;; cadr of this is the cmpl-next-possibility"
|
|
|
1601 (defvar cmpl-starting-possibilities nil)
|
|
|
1602 ;; "The initial list of starting possibilities."
|
|
|
1603 (defvar cmpl-next-possibility nil)
|
|
|
1604 ;; "The cached next possibility."
|
|
|
1605 (defvar cmpl-tried-list nil)
|
|
|
1606 ;; "A downcased list of all the completions we have tried."
|
|
|
1607
|
|
|
1608
|
|
|
1609 (defun completion-search-reset (string)
|
|
|
1610 "Set up the for completion searching for STRING.
|
|
|
1611 STRING must be longer than `completion-prefix-min-length'."
|
|
|
1612 (if completion-to-accept (accept-completion))
|
|
|
1613 (setq cmpl-starting-possibilities
|
|
|
1614 (cmpl-prefix-entry-head
|
|
|
1615 (find-cmpl-prefix-entry
|
|
|
1616 (downcase (substring string 0 completion-prefix-min-length))))
|
|
|
1617 cmpl-test-string string
|
|
|
1618 cmpl-test-regexp (concat (regexp-quote string) "."))
|
|
|
1619 (completion-search-reset-1)
|
|
|
1620 )
|
|
|
1621
|
|
|
1622 (defun completion-search-reset-1 ()
|
|
|
1623 (setq cmpl-next-possibilities cmpl-starting-possibilities
|
|
|
1624 cmpl-next-possibility nil
|
|
|
1625 cmpl-cdabbrev-reset-p nil
|
|
|
1626 cmpl-last-index -1
|
|
|
1627 cmpl-tried-list nil
|
|
|
1628 ))
|
|
|
1629
|
|
|
1630 (defun completion-search-next (index)
|
|
|
1631 "Return the next completion entry.
|
|
|
1632 If INDEX is out of sequence, reset and start from the top.
|
|
|
1633 If there are no more entries, try cdabbrev and returns only a string."
|
|
|
1634 (cond
|
|
|
1635 ((= index (setq cmpl-last-index (1+ cmpl-last-index)))
|
|
|
1636 (completion-search-peek t))
|
|
|
1637 ((< index 0)
|
|
|
1638 (completion-search-reset-1)
|
|
|
1639 (setq cmpl-last-index index)
|
|
|
1640 ;; reverse the possibilities list
|
|
|
1641 (setq cmpl-next-possibilities (reverse cmpl-starting-possibilities))
|
|
|
1642 ;; do a "normal" search
|
|
|
1643 (while (and (completion-search-peek nil)
|
|
|
1644 (< (setq index (1+ index)) 0))
|
|
|
1645 (setq cmpl-next-possibility nil)
|
|
|
1646 )
|
|
|
1647 (cond ((not cmpl-next-possibilities))
|
|
|
1648 ;; If no more possibilities, leave it that way
|
|
|
1649 ((= -1 cmpl-last-index)
|
|
|
1650 ;; next completion is at index 0. reset next-possibility list
|
|
|
1651 ;; to start at beginning
|
|
|
1652 (setq cmpl-next-possibilities cmpl-starting-possibilities))
|
|
|
1653 (t
|
|
|
1654 ;; otherwise point to one before current
|
|
|
1655 (setq cmpl-next-possibilities
|
|
|
1656 (nthcdr (- (length cmpl-starting-possibilities)
|
|
|
1657 (length cmpl-next-possibilities))
|
|
|
1658 cmpl-starting-possibilities))
|
|
|
1659 )))
|
|
|
1660 (t
|
|
|
1661 ;; non-negative index, reset and search
|
|
|
1662 ;;(prin1 'reset)
|
|
|
1663 (completion-search-reset-1)
|
|
|
1664 (setq cmpl-last-index index)
|
|
|
1665 (while (and (completion-search-peek t)
|
|
|
1666 (not (< (setq index (1- index)) 0)))
|
|
|
1667 (setq cmpl-next-possibility nil)
|
|
|
1668 ))
|
|
|
1669 )
|
|
|
1670 (prog1
|
|
|
1671 cmpl-next-possibility
|
|
|
1672 (setq cmpl-next-possibility nil)
|
|
|
1673 ))
|
|
|
1674
|
|
|
1675
|
|
|
1676 (defun completion-search-peek (use-cdabbrev)
|
|
|
1677 "Returns the next completion entry without actually moving the pointers.
|
|
|
1678 Calling this again or calling `completion-search-next' results in the same
|
|
|
1679 string being returned. Depends on `case-fold-search'.
|
|
|
1680 If there are no more entries, try cdabbrev and then return only a string."
|
|
|
1681 (cond
|
|
|
1682 ;; return the cached value if we have it
|
|
|
1683 (cmpl-next-possibility)
|
|
|
1684 ((and cmpl-next-possibilities
|
|
|
1685 ;; still a few possibilities left
|
|
|
1686 (progn
|
|
|
1687 (while
|
|
|
1688 (and (not (eq 0 (string-match cmpl-test-regexp
|
|
|
1689 (completion-string (car cmpl-next-possibilities)))))
|
|
|
1690 (setq cmpl-next-possibilities (cdr cmpl-next-possibilities))
|
|
|
1691 ))
|
|
|
1692 cmpl-next-possibilities
|
|
|
1693 ))
|
|
|
1694 ;; successful match
|
|
|
1695 (setq cmpl-next-possibility (car cmpl-next-possibilities)
|
|
|
1696 cmpl-tried-list (cons (downcase (completion-string cmpl-next-possibility))
|
|
|
1697 cmpl-tried-list)
|
|
|
1698 cmpl-next-possibilities (cdr cmpl-next-possibilities)
|
|
|
1699 )
|
|
|
1700 cmpl-next-possibility)
|
|
|
1701 (use-cdabbrev
|
|
|
1702 ;; unsuccessful, use cdabbrev
|
|
|
1703 (cond ((not cmpl-cdabbrev-reset-p)
|
|
|
1704 (reset-cdabbrev cmpl-test-string cmpl-tried-list)
|
|
|
1705 (setq cmpl-cdabbrev-reset-p t)
|
|
|
1706 ))
|
|
|
1707 (setq cmpl-next-possibility (next-cdabbrev))
|
|
|
1708 )
|
|
|
1709 ;; Completely unsuccessful, return nil
|
|
|
1710 ))
|
|
|
1711
|
|
|
1712 ;;; Tests --
|
|
|
1713 ;;; - Add and Find -
|
|
|
1714 ;;; (add-completion "banana")
|
|
|
1715 ;;; (completion-search-reset "ban")
|
|
|
1716 ;;; (completion-search-next 0) --> "banana"
|
|
|
1717 ;;;
|
|
|
1718 ;;; - Discrimination -
|
|
|
1719 ;;; (add-completion "cumberland")
|
|
|
1720 ;;; (add-completion "cumberbund")
|
|
|
1721 ;;; cumbering
|
|
|
1722 ;;; (completion-search-reset "cumb")
|
|
|
1723 ;;; (completion-search-peek t) --> "cumberbund"
|
|
|
1724 ;;; (completion-search-next 0) --> "cumberbund"
|
|
|
1725 ;;; (completion-search-peek t) --> "cumberland"
|
|
|
1726 ;;; (completion-search-next 1) --> "cumberland"
|
|
|
1727 ;;; (completion-search-peek nil) --> nil
|
|
|
1728 ;;; (completion-search-next 2) --> "cumbering" {cdabbrev}
|
|
|
1729 ;;; (completion-search-next 3) --> nil or "cumming"{depends on context}
|
|
|
1730 ;;; (completion-search-next 1) --> "cumberland"
|
|
|
1731 ;;; (completion-search-peek t) --> "cumbering" {cdabbrev}
|
|
|
1732 ;;;
|
|
|
1733 ;;; - Accepting -
|
|
|
1734 ;;; (completion-search-next 1) --> "cumberland"
|
|
|
1735 ;;; (setq completion-to-accept "cumberland")
|
|
|
1736 ;;; (completion-search-reset "foo")
|
|
|
1737 ;;; (completion-search-reset "cum")
|
|
|
1738 ;;; (completion-search-next 0) --> "cumberland"
|
|
|
1739 ;;;
|
|
|
1740 ;;; - Deleting -
|
|
|
1741 ;;; (kill-completion "cumberland")
|
|
|
1742 ;;; cummings
|
|
|
1743 ;;; (completion-search-reset "cum")
|
|
|
1744 ;;; (completion-search-next 0) --> "cumberbund"
|
|
|
1745 ;;; (completion-search-next 1) --> "cummings"
|
|
|
1746 ;;;
|
|
|
1747 ;;; - Ignoring Capitalization -
|
|
|
1748 ;;; (completion-search-reset "CuMb")
|
|
|
1749 ;;; (completion-search-next 0) --> "cumberbund"
|
|
|
1750
|
|
|
1751
|
|
|
1752
|
|
|
1753 ;;;-----------------------------------------------
|
|
|
1754 ;;; COMPLETE
|
|
|
1755 ;;;-----------------------------------------------
|
|
|
1756
|
|
|
1757 (defun completion-mode ()
|
|
|
1758 "Toggles whether or not to add new words to the completion database."
|
|
|
1759 (interactive)
|
|
|
1760 (setq enable-completion (not enable-completion))
|
|
|
1761 (message "Completion mode is now %s." (if enable-completion "ON" "OFF"))
|
|
|
1762 )
|
|
|
1763
|
|
|
1764 (defvar cmpl-current-index 0)
|
|
|
1765 (defvar cmpl-original-string nil)
|
|
|
1766 (defvar cmpl-last-insert-location -1)
|
|
|
1767 (defvar cmpl-leave-point-at-start nil)
|
|
|
1768
|
|
|
1769 (defun complete (&optional arg)
|
|
|
1770 "Fill out a completion of the word before point.
|
|
|
1771 Point is left at end. Consecutive calls rotate through all possibilities.
|
|
|
1772 Prefix args ::
|
|
|
1773 control-u :: leave the point at the beginning of the completion rather
|
|
|
1774 than at the end.
|
|
|
1775 a number :: rotate through the possible completions by that amount
|
|
|
1776 `-' :: same as -1 (insert previous completion)
|
|
|
1777 {See the comments at the top of `completion.el' for more info.}"
|
|
|
1778 (interactive "*p")
|
|
|
1779 ;;; Set up variables
|
|
|
1780 (cond ((eq last-command this-command)
|
|
|
1781 ;; Undo last one
|
|
|
1782 (delete-region cmpl-last-insert-location (point))
|
|
|
1783 ;; get next completion
|
|
|
1784 (setq cmpl-current-index (+ cmpl-current-index (or arg 1)))
|
|
|
1785 )
|
|
|
1786 (t
|
|
|
1787 (if (not cmpl-initialized-p)
|
|
|
1788 (initialize-completions)) ;; make sure everything's loaded
|
|
|
1789 (cond ((consp current-prefix-arg) ;; control-u
|
|
|
1790 (setq arg 0)
|
|
|
1791 (setq cmpl-leave-point-at-start t)
|
|
|
1792 )
|
|
|
1793 (t
|
|
|
1794 (setq cmpl-leave-point-at-start nil)
|
|
|
1795 ))
|
|
|
1796 ;; get string
|
|
|
1797 (setq cmpl-original-string (symbol-before-point-for-complete))
|
|
|
1798 (cond ((not cmpl-original-string)
|
|
|
1799 (setq this-command 'failed-complete)
|
|
|
1800 (error "To complete, point must be after a symbol at least %d character long"
|
|
|
1801 completion-prefix-min-length)))
|
|
|
1802 ;; get index
|
|
|
1803 (setq cmpl-current-index (if current-prefix-arg arg 0))
|
|
|
1804 ;; statistics
|
|
|
1805 (cmpl-statistics-block
|
|
|
1806 (note-complete-entered-afresh cmpl-original-string))
|
|
|
1807 ;; reset database
|
|
|
1808 (completion-search-reset cmpl-original-string)
|
|
|
1809 ;; erase what we've got
|
|
|
1810 (delete-region cmpl-symbol-start cmpl-symbol-end)
|
|
|
1811 ))
|
|
|
1812
|
|
|
1813 ;; point is at the point to insert the new symbol
|
|
|
1814 ;; Get the next completion
|
|
|
1815 (let* ((print-status-p
|
|
|
1816 ;; XEmacs change
|
|
|
1817 (and (>= (device-baud-rate) completion-prompt-speed-threshold)
|
|
|
1818 (not (minibuffer-window-selected-p))))
|
|
|
1819 (insert-point (point))
|
|
|
1820 (entry (completion-search-next cmpl-current-index))
|
|
|
1821 string
|
|
|
1822 )
|
|
|
1823 ;; entry is either a completion entry or a string (if cdabbrev)
|
|
|
1824
|
|
|
1825 ;; If found, insert
|
|
|
1826 (cond (entry
|
|
|
1827 ;; Setup for proper case
|
|
|
1828 (setq string (if (stringp entry)
|
|
|
1829 entry (completion-string entry)))
|
|
|
1830 (setq string (cmpl-merge-string-cases
|
|
|
1831 string cmpl-original-string))
|
|
|
1832 ;; insert
|
|
|
1833 (insert string)
|
|
|
1834 ;; accept it
|
|
|
1835 (setq completion-to-accept string)
|
|
|
1836 ;; fixup and cache point
|
|
|
1837 (cond (cmpl-leave-point-at-start
|
|
|
1838 (setq cmpl-last-insert-location (point))
|
|
|
1839 (goto-char insert-point))
|
|
|
1840 (t;; point at end,
|
|
|
1841 (setq cmpl-last-insert-location insert-point))
|
|
|
1842 )
|
|
|
1843 ;; statistics
|
|
|
1844 (cmpl-statistics-block
|
|
|
1845 (note-complete-inserted entry cmpl-current-index))
|
|
|
1846 ;; Done ! cmpl-stat-complete-successful
|
|
|
1847 ;;display the next completion
|
|
|
1848 (cond
|
|
|
1849 ((and print-status-p
|
|
|
1850 ;; This updates the display and only prints if there
|
|
|
1851 ;; is no typeahead
|
|
|
1852 (sit-for 0)
|
|
|
1853 (setq entry
|
|
|
1854 (completion-search-peek
|
|
|
1855 completion-cdabbrev-prompt-flag)))
|
|
|
1856 (setq string (if (stringp entry)
|
|
|
1857 entry (completion-string entry)))
|
|
|
1858 (setq string (cmpl-merge-string-cases
|
|
|
1859 string cmpl-original-string))
|
|
|
1860 (message "Next completion: %s" string)
|
|
|
1861 ))
|
|
|
1862 )
|
|
|
1863 (t;; none found, insert old
|
|
|
1864 (insert cmpl-original-string)
|
|
|
1865 ;; Don't accept completions
|
|
|
1866 (setq completion-to-accept nil)
|
|
|
1867 ;; print message
|
|
|
1868 ;; This used to call cmpl19-sit-for, an undefined function.
|
|
|
1869 ;; I hope that sit-for does the right thing; I don't know -- rms.
|
|
|
1870 (if (and print-status-p (sit-for 0))
|
|
|
1871 (message "No %scompletions."
|
|
|
1872 (if (eq this-command last-command) "more " "")))
|
|
|
1873 ;; statistics
|
|
|
1874 (cmpl-statistics-block
|
|
|
1875 (record-complete-failed cmpl-current-index))
|
|
|
1876 ;; Pretend that we were never here
|
|
|
1877 (setq this-command 'failed-complete)
|
|
|
1878 ))))
|
|
|
1879
|
|
|
1880 ;;;-----------------------------------------------
|
|
|
1881 ;;; "Complete" Key Keybindings
|
|
|
1882 ;;;-----------------------------------------------
|
|
|
1883
|
|
|
1884 ;; XEmacs change
|
|
|
1885 ;;(global-set-key "\M-\r" 'complete)
|
|
|
1886 ;;(global-set-key [?\C-\r] 'complete)
|
|
|
1887 ;;(define-key function-key-map [C-return] [?\C-\r])
|
|
|
1888 (global-set-key '(meta return) 'complete)
|
|
|
1889 (global-set-key '(control return) 'complete)
|
|
|
1890 ;; XEmacs: #### still need to take care of function-key-map
|
|
|
1891
|
|
|
1892 ;;; Tests -
|
|
|
1893 ;;; (add-completion "cumberland")
|
|
|
1894 ;;; (add-completion "cumberbund")
|
|
|
1895 ;;; cum
|
|
|
1896 ;;; Cumber
|
|
|
1897 ;;; cumbering
|
|
|
1898 ;;; cumb
|
|
|
1899
|
|
|
1900
|
|
|
1901 ;;;---------------------------------------------------------------------------
|
|
|
1902 ;;; Parsing definitions from files into the database
|
|
|
1903 ;;;---------------------------------------------------------------------------
|
|
|
1904
|
|
|
1905 ;;;-----------------------------------------------
|
|
|
1906 ;;; Top Level functions ::
|
|
|
1907 ;;;-----------------------------------------------
|
|
|
1908
|
|
|
1909 ;;; User interface
|
|
|
1910 (defun add-completions-from-file (file)
|
|
|
1911 "Parse possible completions from a file and add them to data base."
|
|
|
1912 (interactive "fFile: ")
|
|
|
1913 (setq file (expand-file-name file))
|
|
|
1914 (let* ((buffer (get-file-buffer file))
|
|
|
1915 (buffer-already-there-p buffer)
|
|
|
1916 )
|
|
|
1917 (if (not buffer-already-there-p)
|
|
|
1918 (let ((completions-merging-modes nil))
|
|
|
1919 (setq buffer (find-file-noselect file))))
|
|
|
1920 (unwind-protect
|
|
|
1921 (save-excursion
|
|
|
1922 (set-buffer buffer)
|
|
|
1923 (add-completions-from-buffer)
|
|
|
1924 )
|
|
|
1925 (if (not buffer-already-there-p)
|
|
|
1926 (kill-buffer buffer)))))
|
|
|
1927
|
|
|
1928 (defun add-completions-from-buffer ()
|
|
|
1929 (interactive)
|
|
|
1930 (let ((current-completion-source cmpl-source-file-parsing)
|
|
|
1931 (start-num
|
|
|
1932 (cmpl-statistics-block
|
|
|
1933 (aref completion-add-count-vector cmpl-source-file-parsing)))
|
|
|
1934 mode
|
|
|
1935 )
|
|
|
1936 (cond ((memq major-mode '(emacs-lisp-mode lisp-mode))
|
|
|
1937 (add-completions-from-lisp-buffer)
|
|
|
1938 (setq mode 'lisp)
|
|
|
1939 )
|
|
|
1940 ((memq major-mode '(c-mode))
|
|
|
1941 (add-completions-from-c-buffer)
|
|
|
1942 (setq mode 'c)
|
|
|
1943 )
|
|
|
1944 (t
|
|
|
1945 (error "Cannot parse completions in %s buffers"
|
|
|
1946 major-mode)
|
|
|
1947 ))
|
|
|
1948 (cmpl-statistics-block
|
|
|
1949 (record-cmpl-parse-file
|
|
|
1950 mode (point-max)
|
|
|
1951 (- (aref completion-add-count-vector cmpl-source-file-parsing)
|
|
|
1952 start-num)))
|
|
|
1953 ))
|
|
|
1954
|
|
|
1955 ;;; Find file hook
|
|
|
1956 (defun cmpl-find-file-hook ()
|
|
|
1957 (cond (enable-completion
|
|
|
1958 (cond ((and (memq major-mode '(emacs-lisp-mode lisp-mode))
|
|
|
1959 (memq 'lisp completions-merging-modes)
|
|
|
1960 )
|
|
|
1961 (add-completions-from-buffer))
|
|
|
1962 ((and (memq major-mode '(c-mode))
|
|
|
1963 (memq 'c completions-merging-modes)
|
|
|
1964 )
|
|
|
1965 (add-completions-from-buffer)
|
|
|
1966 )))
|
|
|
1967 ))
|
|
|
1968
|
|
|
1969 (add-hook 'find-file-hooks 'cmpl-find-file-hook)
|
|
|
1970
|
|
|
1971 ;;;-----------------------------------------------
|
|
|
1972 ;;; Tags Table Completions
|
|
|
1973 ;;;-----------------------------------------------
|
|
|
1974
|
|
|
1975 (defun add-completions-from-tags-table ()
|
|
|
1976 ;; Inspired by eero@media-lab.media.mit.edu
|
|
|
1977 "Add completions from the current tags table."
|
|
|
1978 (interactive)
|
|
|
1979 (visit-tags-table-buffer) ;this will prompt if no tags-table
|
|
|
1980 (save-excursion
|
|
|
1981 (goto-char (point-min))
|
|
|
1982 (let (string)
|
|
|
1983 (condition-case e
|
|
|
1984 (while t
|
|
|
1985 (search-forward "\177")
|
|
|
1986 (backward-char 3)
|
|
|
1987 (and (setq string (symbol-under-point))
|
|
|
1988 (add-completion-to-tail-if-new string))
|
|
|
1989 (forward-char 3)
|
|
|
1990 )
|
|
|
1991 (search-failed)
|
|
|
1992 ))))
|
|
|
1993
|
|
|
1994
|
|
|
1995 ;;;-----------------------------------------------
|
|
|
1996 ;;; Lisp File completion parsing
|
|
|
1997 ;;;-----------------------------------------------
|
|
|
1998 ;;; This merely looks for phrases beginning with (def.... or
|
|
|
1999 ;;; (package:def ... and takes the next word.
|
|
|
2000 ;;;
|
|
|
2001 ;;; We tried using forward-lines and explicit searches but the regexp technique
|
|
|
2002 ;;; was faster. (About 100K characters per second)
|
|
|
2003 ;;;
|
|
|
2004 (defconst *lisp-def-regexp*
|
|
|
2005 "\n(\\(\\w*:\\)?def\\(\\w\\|\\s_\\)*\\s +(*"
|
|
|
2006 "A regexp that searches for lisp definition form."
|
|
|
2007 )
|
|
|
2008
|
|
|
2009 ;;; Tests -
|
|
|
2010 ;;; (and (string-match *lisp-def-regexp* "\n(defun foo") (match-end 0)) -> 8
|
|
|
2011 ;;; (and (string-match *lisp-def-regexp* "\n(si:def foo") (match-end 0)) -> 9
|
|
|
2012 ;;; (and (string-match *lisp-def-regexp* "\n(def-bar foo")(match-end 0)) -> 10
|
|
|
2013 ;;; (and (string-match *lisp-def-regexp* "\n(defun (foo") (match-end 0)) -> 9
|
|
|
2014
|
|
|
2015 ;;; Parses all the definition names from a Lisp mode buffer and adds them to
|
|
|
2016 ;;; the completion database.
|
|
|
2017 (defun add-completions-from-lisp-buffer ()
|
|
|
2018 ;;; Benchmarks
|
|
|
2019 ;;; Sun-3/280 - 1500 to 3000 lines of lisp code per second
|
|
|
2020 (let (string)
|
|
|
2021 (save-excursion
|
|
|
2022 (goto-char (point-min))
|
|
|
2023 (condition-case e
|
|
|
2024 (while t
|
|
|
2025 (re-search-forward *lisp-def-regexp*)
|
|
|
2026 (and (setq string (symbol-under-point))
|
|
|
2027 (add-completion-to-tail-if-new string))
|
|
|
2028 )
|
|
|
2029 (search-failed)
|
|
|
2030 ))))
|
|
|
2031
|
|
|
2032
|
|
|
2033 ;;;-----------------------------------------------
|
|
|
2034 ;;; C file completion parsing
|
|
|
2035 ;;;-----------------------------------------------
|
|
|
2036 ;;; C :
|
|
|
2037 ;;; Looks for #define or [<storage class>] [<type>] <name>{,<name>}
|
|
|
2038 ;;; or structure, array or pointer defs.
|
|
|
2039 ;;; It gets most of the definition names.
|
|
|
2040 ;;;
|
|
|
2041 ;;; As you might suspect by now, we use some symbol table hackery
|
|
|
2042 ;;;
|
|
|
2043 ;;; Symbol separator chars (have whitespace syntax) --> , ; * = (
|
|
|
2044 ;;; Opening char --> [ {
|
|
|
2045 ;;; Closing char --> ] }
|
|
|
2046 ;;; opening and closing must be skipped over
|
|
|
2047 ;;; Whitespace chars (have symbol syntax)
|
|
|
2048 ;;; Everything else has word syntax
|
|
|
2049
|
|
|
2050 (defun cmpl-make-c-def-completion-syntax-table ()
|
|
|
2051 (let ((table (make-vector 256 0))
|
|
|
2052 (whitespace-chars '(? ?\n ?\t ?\f ?\v ?\r))
|
|
|
2053 ;; unfortunately the ?( causes the parens to appear unbalanced
|
|
|
2054 (separator-chars '(?, ?* ?= ?\( ?\;
|
|
|
2055 ))
|
|
|
2056 i)
|
|
|
2057 ;; default syntax is whitespace
|
|
|
2058 (setq i 0)
|
|
|
2059 (while (< i 256)
|
|
|
2060 (modify-syntax-entry i "w" table)
|
|
|
2061 (setq i (1+ i)))
|
|
|
2062 (completion-dolist (char whitespace-chars)
|
|
|
2063 (modify-syntax-entry char "_" table))
|
|
|
2064 (completion-dolist (char separator-chars)
|
|
|
2065 (modify-syntax-entry char " " table))
|
|
|
2066 (modify-syntax-entry ?\[ "(]" table)
|
|
|
2067 (modify-syntax-entry ?\{ "(}" table)
|
|
|
2068 (modify-syntax-entry ?\] ")[" table)
|
|
|
2069 (modify-syntax-entry ?\} "){" table)
|
|
|
2070 table))
|
|
|
2071
|
|
|
2072 (defconst cmpl-c-def-syntax-table (cmpl-make-c-def-completion-syntax-table))
|
|
|
2073
|
|
|
2074 ;;; Regexps
|
|
|
2075 (defconst *c-def-regexp*
|
|
|
2076 ;; This stops on lines with possible definitions
|
|
|
2077 "\n[_a-zA-Z#]"
|
|
|
2078 ;; This stops after the symbol to add.
|
|
|
2079 ;;"\n\\(#define\\s +.\\|\\(\\(\\w\\|\\s_\\)+\\b\\s *\\)+[(;,[*{=]\\)"
|
|
|
2080 ;; This stops before the symbol to add. {Test cases in parens. below}
|
|
|
2081 ;;"\n\\(\\(\\w\\|\\s_\\)+\\s *(\\|\\(\\(#define\\|auto\\|extern\\|register\\|static\\|int\\|long\\|short\\|unsigned\\|char\\|void\\|float\\|double\\|enum\\|struct\\|union\\|typedef\\)\\s +\\)+\\)"
|
|
|
2082 ;; this simple version picks up too much extraneous stuff
|
|
|
2083 ;; "\n\\(\\w\\|\\s_\\|#\\)\\B"
|
|
|
2084 "A regexp that searches for a definition form."
|
|
|
2085 )
|
|
|
2086 ;
|
|
|
2087 ;(defconst *c-cont-regexp*
|
|
|
2088 ; "\\(\\w\\|\\s_\\)+\\b\\s *\\({\\|\\(\\[[0-9\t ]*\\]\\s *\\)*,\\(*\\|\\s \\)*\\b\\)"
|
|
|
2089 ; "This regexp should be used in a looking-at to parse for lists of variables.")
|
|
|
2090 ;
|
|
|
2091 ;(defconst *c-struct-regexp*
|
|
|
2092 ; "\\(*\\|\\s \\)*\\b"
|
|
|
2093 ; "This regexp should be used to test whether a symbol follows a structure definition.")
|
|
|
2094
|
|
|
2095 ;(defun test-c-def-regexp (regexp string)
|
|
|
2096 ; (and (eq 0 (string-match regexp string)) (match-end 0))
|
|
|
2097 ; )
|
|
|
2098
|
|
|
2099 ;;; Tests -
|
|
|
2100 ;;; (test-c-def-regexp *c-def-regexp* "\n#define foo") -> 10 (9)
|
|
|
2101 ;;; (test-c-def-regexp *c-def-regexp* "\nfoo (x, y) {") -> 6 (6)
|
|
|
2102 ;;; (test-c-def-regexp *c-def-regexp* "\nint foo (x, y)") -> 10 (5)
|
|
|
2103 ;;; (test-c-def-regexp *c-def-regexp* "\n int foo (x, y)") -> nil
|
|
|
2104 ;;; (test-c-def-regexp *c-cont-regexp* "oo, bar") -> 4
|
|
|
2105 ;;; (test-c-def-regexp *c-cont-regexp* "oo, *bar") -> 5
|
|
|
2106 ;;; (test-c-def-regexp *c-cont-regexp* "a [5][6], bar") -> 10
|
|
|
2107 ;;; (test-c-def-regexp *c-cont-regexp* "oo(x,y)") -> nil
|
|
|
2108 ;;; (test-c-def-regexp *c-cont-regexp* "a [6] ,\t bar") -> 9
|
|
|
2109 ;;; (test-c-def-regexp *c-cont-regexp* "oo {trout =1} my_carp;") -> 14
|
|
|
2110 ;;; (test-c-def-regexp *c-cont-regexp* "truct_p complex foon") -> nil
|
|
|
2111
|
|
|
2112 ;;; Parses all the definition names from a C mode buffer and adds them to the
|
|
|
2113 ;;; completion database.
|
|
|
2114 (defun add-completions-from-c-buffer ()
|
|
|
2115 ;; Benchmark --
|
|
|
2116 ;; Sun 3/280-- 1250 lines/sec.
|
|
|
2117
|
|
|
2118 (let (string next-point char
|
|
|
2119 (saved-syntax (syntax-table))
|
|
|
2120 )
|
|
|
2121 (save-excursion
|
|
|
2122 (goto-char (point-min))
|
|
|
2123 (catch 'finish-add-completions
|
|
|
2124 (unwind-protect
|
|
|
2125 (while t
|
|
|
2126 ;; we loop here only when scan-sexps fails
|
|
|
2127 ;; (i.e. unbalance exps.)
|
|
|
2128 (set-syntax-table cmpl-c-def-syntax-table)
|
|
|
2129 (condition-case e
|
|
|
2130 (while t
|
|
|
2131 (re-search-forward *c-def-regexp*)
|
|
|
2132 (cond
|
|
|
2133 ((= (preceding-char) ?#)
|
|
|
2134 ;; preprocessor macro, see if it's one we handle
|
|
|
2135 (setq string (buffer-substring (point) (+ (point) 6)))
|
|
|
2136 (cond ((or (string-equal string "define")
|
|
|
2137 (string-equal string "ifdef ")
|
|
|
2138 )
|
|
|
2139 ;; skip forward over definition symbol
|
|
|
2140 ;; and add it to database
|
|
|
2141 (and (forward-word 2)
|
|
|
2142 (setq string (symbol-before-point))
|
|
|
2143 ;;(push string foo)
|
|
|
2144 (add-completion-to-tail-if-new string)
|
|
|
2145 ))))
|
|
|
2146 (t
|
|
|
2147 ;; C definition
|
|
|
2148 (setq next-point (point))
|
|
|
2149 (while (and
|
|
|
2150 next-point
|
|
|
2151 ;; scan to next separator char.
|
|
|
2152 (setq next-point (scan-sexps next-point 1))
|
|
|
2153 )
|
|
|
2154 ;; position the point on the word we want to add
|
|
|
2155 (goto-char next-point)
|
|
|
2156 (while (= (setq char (following-char)) ?*)
|
|
|
2157 ;; handle pointer ref
|
|
|
2158 ;; move to next separator char.
|
|
|
2159 (goto-char
|
|
|
2160 (setq next-point (scan-sexps (point) 1)))
|
|
|
2161 )
|
|
|
2162 (forward-word -1)
|
|
|
2163 ;; add to database
|
|
|
2164 (if (setq string (symbol-under-point))
|
|
|
2165 ;; (push string foo)
|
|
|
2166 (add-completion-to-tail-if-new string)
|
|
|
2167 ;; Local TMC hack (useful for parsing paris.h)
|
|
|
2168 (if (and (looking-at "_AP") ;; "ansi prototype"
|
|
|
2169 (progn
|
|
|
2170 (forward-word -1)
|
|
|
2171 (setq string
|
|
|
2172 (symbol-under-point))
|
|
|
2173 ))
|
|
|
2174 (add-completion-to-tail-if-new string)
|
|
|
2175 )
|
|
|
2176 )
|
|
|
2177 ;; go to next
|
|
|
2178 (goto-char next-point)
|
|
|
2179 ;; (push (format "%c" (following-char)) foo)
|
|
|
2180 (if (= (char-syntax char) ?\()
|
|
|
2181 ;; if on an opening delimiter, go to end
|
|
|
2182 (while (= (char-syntax char) ?\()
|
|
|
2183 (setq next-point (scan-sexps next-point 1)
|
|
|
2184 char (char-after next-point))
|
|
|
2185 )
|
|
|
2186 (or (= char ?,)
|
|
|
2187 ;; Current char is an end char.
|
|
|
2188 (setq next-point nil)
|
|
|
2189 ))
|
|
|
2190 ))))
|
|
|
2191 (search-failed ;;done
|
|
|
2192 (throw 'finish-add-completions t)
|
|
|
2193 )
|
|
|
2194 (error
|
|
|
2195 ;; Check for failure in scan-sexps
|
|
|
2196 (if (or (string-equal (nth 1 e)
|
|
|
2197 "Containing expression ends prematurely")
|
|
|
2198 (string-equal (nth 1 e) "Unbalanced parentheses"))
|
|
|
2199 ;; unbalanced paren., keep going
|
|
|
2200 ;;(ding)
|
|
|
2201 (forward-line 1)
|
|
|
2202 (message "Error parsing C buffer for completions--please send bug report")
|
|
|
2203 (throw 'finish-add-completions t)
|
|
|
2204 ))
|
|
|
2205 ))
|
|
|
2206 (set-syntax-table saved-syntax)
|
|
|
2207 )))))
|
|
|
2208
|
|
|
2209
|
|
|
2210 ;;;---------------------------------------------------------------------------
|
|
|
2211 ;;; Init files
|
|
|
2212 ;;;---------------------------------------------------------------------------
|
|
|
2213
|
|
|
2214 ;;; The version of save-completions-to-file called at kill-emacs time.
|
|
|
2215 (defun kill-emacs-save-completions ()
|
|
|
2216 (if (and save-completions-flag enable-completion cmpl-initialized-p)
|
|
|
2217 (cond
|
|
|
2218 ((not cmpl-completions-accepted-p)
|
|
|
2219 (message "Completions database has not changed - not writing."))
|
|
|
2220 (t
|
|
|
2221 (save-completions-to-file)))))
|
|
|
2222
|
|
|
2223 ;; There is no point bothering to change this again
|
|
|
2224 ;; unless the package changes so much that it matters
|
|
|
2225 ;; for people that have saved completions.
|
|
|
2226 (defconst completion-version "11")
|
|
|
2227
|
|
|
2228 (defconst saved-cmpl-file-header
|
|
|
2229 ";;; Completion Initialization file.
|
|
|
2230 ;;; Version = %s
|
|
|
2231 ;;; Format is (<string> . <last-use-time>)
|
|
|
2232 ;;; <string> is the completion
|
|
|
2233 ;;; <last-use-time> is the time the completion was last used
|
|
|
2234 ;;; If it is t, the completion will never be pruned from the file.
|
|
|
2235 ;;; Otherwise it is in hours since origin.
|
|
|
2236 \n")
|
|
|
2237
|
|
|
2238 (defun completion-backup-filename (filename)
|
|
|
2239 (concat filename ".BAK"))
|
|
|
2240
|
|
|
2241 (defun save-completions-to-file (&optional filename)
|
|
|
2242 "Save completions in init file FILENAME.
|
|
|
2243 If file name is not specified, use `save-completions-file-name'."
|
|
|
2244 (interactive)
|
|
|
2245 (setq filename (expand-file-name (or filename save-completions-file-name)))
|
|
|
2246 (if (file-writable-p filename)
|
|
|
2247 (progn
|
|
|
2248 (if (not cmpl-initialized-p)
|
|
|
2249 (initialize-completions));; make sure everything's loaded
|
|
|
2250 (message "Saving completions to file %s" filename)
|
|
|
2251
|
|
|
2252 (let* ((delete-old-versions t)
|
|
|
2253 (kept-old-versions 0)
|
|
|
2254 (kept-new-versions completions-file-versions-kept)
|
|
|
2255 last-use-time
|
|
|
2256 (current-time (cmpl-hours-since-origin))
|
|
|
2257 (total-in-db 0)
|
|
|
2258 (total-perm 0)
|
|
|
2259 (total-saved 0)
|
|
|
2260 (backup-filename (completion-backup-filename filename))
|
|
|
2261 )
|
|
|
2262
|
|
|
2263 (save-excursion
|
|
|
2264 (get-buffer-create " *completion-save-buffer*")
|
|
|
2265 (set-buffer " *completion-save-buffer*")
|
|
|
2266 (setq buffer-file-name filename)
|
|
|
2267
|
|
|
2268 (if (not (verify-visited-file-modtime (current-buffer)))
|
|
|
2269 (progn
|
|
|
2270 ;; file has changed on disk. Bring us up-to-date
|
|
|
2271 (message "Completion file has changed. Merging. . .")
|
|
|
2272 (load-completions-from-file filename t)
|
|
|
2273 (message "Merging finished. Saving completions to file %s" filename)))
|
|
|
2274
|
|
|
2275 ;; prepare the buffer to be modified
|
|
|
2276 (clear-visited-file-modtime)
|
|
|
2277 (erase-buffer)
|
|
|
2278 ;; (/ 1 0)
|
|
|
2279 (insert (format saved-cmpl-file-header completion-version))
|
|
|
2280 (completion-dolist (completion (list-all-completions))
|
|
|
2281 (setq total-in-db (1+ total-in-db))
|
|
|
2282 (setq last-use-time (completion-last-use-time completion))
|
|
|
2283 ;; Update num uses and maybe write completion to a file
|
|
|
2284 (cond ((or;; Write to file if
|
|
|
2285 ;; permanent
|
|
|
2286 (and (eq last-use-time t)
|
|
|
2287 (setq total-perm (1+ total-perm)))
|
|
|
2288 ;; or if
|
|
|
2289 (if (> (completion-num-uses completion) 0)
|
|
|
2290 ;; it's been used
|
|
|
2291 (setq last-use-time current-time)
|
|
|
2292 ;; or it was saved before and
|
|
|
2293 (and last-use-time
|
|
|
2294 ;; save-completions-retention-time is nil
|
|
|
2295 (or (not save-completions-retention-time)
|
|
|
2296 ;; or time since last use is < ...retention-time*
|
|
|
2297 (< (- current-time last-use-time)
|
|
|
2298 save-completions-retention-time))
|
|
|
2299 )))
|
|
|
2300 ;; write to file
|
|
|
2301 (setq total-saved (1+ total-saved))
|
|
|
2302 (insert (prin1-to-string (cons (completion-string completion)
|
|
|
2303 last-use-time)) "\n")
|
|
|
2304 )))
|
|
|
2305
|
|
|
2306 ;; write the buffer
|
|
|
2307 (condition-case e
|
|
|
2308 (let ((file-exists-p (file-exists-p filename)))
|
|
|
2309 (if file-exists-p
|
|
|
2310 (progn
|
|
|
2311 ;; If file exists . . .
|
|
|
2312 ;; Save a backup(so GNU doesn't screw us when we're out of disk)
|
|
|
2313 ;; (GNU leaves a 0 length file if it gets a disk full error!)
|
|
|
2314
|
|
|
2315 ;; If backup doesn't exit, Rename current to backup
|
|
|
2316 ;; {If backup exists the primary file is probably messed up}
|
|
|
2317 (or (file-exists-p backup-filename)
|
|
|
2318 (rename-file filename backup-filename))
|
|
|
2319 ;; Copy the backup back to the current name
|
|
|
2320 ;; (so versioning works)
|
|
|
2321 (copy-file backup-filename filename t)))
|
|
|
2322 ;; Save it
|
|
|
2323 (save-buffer)
|
|
|
2324 (if file-exists-p
|
|
|
2325 ;; If successful, remove backup
|
|
|
2326 (delete-file backup-filename)))
|
|
|
2327 (error
|
|
|
2328 (set-buffer-modified-p nil)
|
|
|
2329 (message "Couldn't save completion file `%s'" filename)
|
|
|
2330 ))
|
|
|
2331 ;; Reset accepted-p flag
|
|
|
2332 (setq cmpl-completions-accepted-p nil)
|
|
|
2333 )
|
|
|
2334 (cmpl-statistics-block
|
|
|
2335 (record-save-completions total-in-db total-perm total-saved))
|
|
|
2336 ))))
|
|
|
2337
|
|
|
2338 ;;;(defun autosave-completions ()
|
|
|
2339 ;;; (if (and save-completions-flag enable-completion cmpl-initialized-p
|
|
|
2340 ;;; *completion-auto-save-period*
|
|
|
2341 ;;; (> cmpl-emacs-idle-time *completion-auto-save-period*)
|
|
|
2342 ;;; cmpl-completions-accepted-p)
|
|
|
2343 ;;; (save-completions-to-file)))
|
|
|
2344
|
|
|
2345 ;;;(add-hook 'cmpl-emacs-idle-time-hooks 'autosave-completions)
|
|
|
2346
|
|
|
2347 (defun load-completions-from-file (&optional filename no-message-p)
|
|
|
2348 "Loads a completion init file FILENAME.
|
|
|
2349 If file is not specified, then use `save-completions-file-name'."
|
|
|
2350 (interactive)
|
|
|
2351 (setq filename (expand-file-name (or filename save-completions-file-name)))
|
|
|
2352 (let* ((backup-filename (completion-backup-filename filename))
|
|
|
2353 (backup-readable-p (file-readable-p backup-filename))
|
|
|
2354 )
|
|
|
2355 (if backup-readable-p (setq filename backup-filename))
|
|
|
2356 (if (file-readable-p filename)
|
|
|
2357 (progn
|
|
|
2358 (if (not no-message-p)
|
|
|
2359 (message "Loading completions from %sfile %s . . ."
|
|
|
2360 (if backup-readable-p "backup " "") filename))
|
|
|
2361 (save-excursion
|
|
|
2362 (get-buffer-create " *completion-save-buffer*")
|
|
|
2363 (set-buffer " *completion-save-buffer*")
|
|
|
2364 (setq buffer-file-name filename)
|
|
|
2365 ;; prepare the buffer to be modified
|
|
|
2366 (clear-visited-file-modtime)
|
|
|
2367 (erase-buffer)
|
|
|
2368
|
|
|
2369 (let ((insert-okay-p nil)
|
|
|
2370 (buffer (current-buffer))
|
|
|
2371 (current-time (cmpl-hours-since-origin))
|
|
|
2372 string num-uses entry last-use-time
|
|
|
2373 cmpl-entry cmpl-last-use-time
|
|
|
2374 (current-completion-source cmpl-source-init-file)
|
|
|
2375 (start-num
|
|
|
2376 (cmpl-statistics-block
|
|
|
2377 (aref completion-add-count-vector cmpl-source-file-parsing)))
|
|
|
2378 (total-in-file 0) (total-perm 0)
|
|
|
2379 )
|
|
|
2380 ;; insert the file into a buffer
|
|
|
2381 (condition-case e
|
|
|
2382 (progn (insert-file-contents filename t)
|
|
|
2383 (setq insert-okay-p t))
|
|
|
2384
|
|
|
2385 (file-error
|
|
|
2386 (message "File error trying to load completion file %s."
|
|
|
2387 filename)))
|
|
|
2388 ;; parse it
|
|
|
2389 (if insert-okay-p
|
|
|
2390 (progn
|
|
|
2391 (goto-char (point-min))
|
|
|
2392
|
|
|
2393 (condition-case e
|
|
|
2394 (while t
|
|
|
2395 (setq entry (read buffer))
|
|
|
2396 (setq total-in-file (1+ total-in-file))
|
|
|
2397 (cond
|
|
|
2398 ((and (consp entry)
|
|
|
2399 (stringp (setq string (car entry)))
|
|
|
2400 (cond
|
|
|
2401 ((eq (setq last-use-time (cdr entry)) 'T)
|
|
|
2402 ;; handle case sensitivity
|
|
|
2403 (setq total-perm (1+ total-perm))
|
|
|
2404 (setq last-use-time t))
|
|
|
2405 ((eq last-use-time t)
|
|
|
2406 (setq total-perm (1+ total-perm)))
|
|
|
2407 ((integerp last-use-time))
|
|
|
2408 ))
|
|
|
2409 ;; Valid entry
|
|
|
2410 ;; add it in
|
|
|
2411 (setq cmpl-last-use-time
|
|
|
2412 (completion-last-use-time
|
|
|
2413 (setq cmpl-entry
|
|
|
2414 (add-completion-to-tail-if-new string))
|
|
|
2415 ))
|
|
|
2416 (if (or (eq last-use-time t)
|
|
|
2417 (and (> last-use-time 1000);;backcompatibility
|
|
|
2418 (not (eq cmpl-last-use-time t))
|
|
|
2419 (or (not cmpl-last-use-time)
|
|
|
2420 ;; more recent
|
|
|
2421 (> last-use-time cmpl-last-use-time))
|
|
|
2422 ))
|
|
|
2423 ;; update last-use-time
|
|
|
2424 (set-completion-last-use-time cmpl-entry last-use-time)
|
|
|
2425 ))
|
|
|
2426 (t
|
|
|
2427 ;; Bad format
|
|
|
2428 (message "Error: invalid saved completion - %s"
|
|
|
2429 (prin1-to-string entry))
|
|
|
2430 ;; try to get back in sync
|
|
|
2431 (search-forward "\n(")
|
|
|
2432 )))
|
|
|
2433 (search-failed
|
|
|
2434 (message "End of file while reading completions.")
|
|
|
2435 )
|
|
|
2436 (end-of-file
|
|
|
2437 (if (= (point) (point-max))
|
|
|
2438 (if (not no-message-p)
|
|
|
2439 (message "Loading completions from file %s . . . Done."
|
|
|
2440 filename))
|
|
|
2441 (message "End of file while reading completions.")
|
|
|
2442 ))
|
|
|
2443 )))
|
|
|
2444
|
|
|
2445 (cmpl-statistics-block
|
|
|
2446 (record-load-completions
|
|
|
2447 total-in-file total-perm
|
|
|
2448 (- (aref completion-add-count-vector cmpl-source-init-file)
|
|
|
2449 start-num)))
|
|
|
2450
|
|
|
2451 ))))))
|
|
|
2452
|
|
|
2453 (defun initialize-completions ()
|
|
|
2454 "Load the default completions file.
|
|
|
2455 Also sets up so that exiting emacs will automatically save the file."
|
|
|
2456 (interactive)
|
|
|
2457 (cond ((not cmpl-initialized-p)
|
|
|
2458 (load-completions-from-file)
|
|
|
2459 ))
|
|
|
2460 (setq cmpl-initialized-p t)
|
|
|
2461 )
|
|
|
2462
|
|
|
2463
|
|
|
2464 ;;;-----------------------------------------------
|
|
|
2465 ;;; Kill EMACS patch
|
|
|
2466 ;;;-----------------------------------------------
|
|
|
2467
|
|
|
2468 (add-hook 'kill-emacs-hook
|
|
|
2469 '(lambda ()
|
|
|
2470 (kill-emacs-save-completions)
|
|
|
2471 (cmpl-statistics-block
|
|
|
2472 (record-cmpl-kill-emacs))))
|
|
|
2473
|
|
|
2474 ;;;-----------------------------------------------
|
|
|
2475 ;;; Kill region patch
|
|
|
2476 ;;;-----------------------------------------------
|
|
|
2477
|
|
|
2478 (defun completion-kill-region (&optional beg end)
|
|
|
2479 "Kill between point and mark.
|
|
|
2480 The text is deleted but saved in the kill ring.
|
|
|
2481 The command \\[yank] can retrieve it from there.
|
|
|
2482 /(If you want to kill and then yank immediately, use \\[copy-region-as-kill].)
|
|
|
2483
|
|
|
2484 This is the primitive for programs to kill text (as opposed to deleting it).
|
|
|
2485 Supply two arguments, character numbers indicating the stretch of text
|
|
|
2486 to be killed.
|
|
|
2487 Any command that calls this function is a \"kill command\".
|
|
|
2488 If the previous command was also a kill command,
|
|
|
2489 the text killed this time appends to the text killed last time
|
|
|
2490 to make one entry in the kill ring.
|
|
|
2491 Patched to remove the most recent completion."
|
|
|
2492 (interactive "r")
|
|
|
2493 (cond ((eq last-command 'complete)
|
|
|
2494 (delete-region (point) cmpl-last-insert-location)
|
|
|
2495 (insert cmpl-original-string)
|
|
|
2496 (setq completion-to-accept nil)
|
|
|
2497 (cmpl-statistics-block
|
|
|
2498 (record-complete-failed)))
|
|
|
2499 (t
|
|
|
2500 (kill-region beg end))))
|
|
|
2501
|
|
|
2502 (global-set-key "\C-w" 'completion-kill-region)
|
|
|
2503
|
|
|
2504 ;;;-----------------------------------------------
|
|
|
2505 ;;; Patches to self-insert-command.
|
|
|
2506 ;;;-----------------------------------------------
|
|
|
2507
|
|
|
2508 ;;; Need 2 versions: generic separator chars. and space (to get auto fill
|
|
|
2509 ;;; to work)
|
|
|
2510
|
|
|
2511 ;;; All common separators (eg. space "(" ")" """) characters go through a
|
|
|
2512 ;;; function to add new words to the list of words to complete from:
|
|
|
2513 ;;; COMPLETION-SEPARATOR-SELF-INSERT-COMMAND (arg).
|
|
|
2514 ;;; If the character before this was an alpha-numeric then this adds the
|
|
|
2515 ;;; symbol before point to the completion list (using ADD-COMPLETION).
|
|
|
2516
|
|
|
2517 (defun completion-separator-self-insert-command (arg)
|
|
|
2518 (interactive "p")
|
|
|
2519 (use-completion-before-separator)
|
|
|
2520 (self-insert-command arg)
|
|
|
2521 )
|
|
|
2522
|
|
|
2523 (defun completion-separator-self-insert-autofilling (arg)
|
|
|
2524 (interactive "p")
|
|
|
2525 (use-completion-before-separator)
|
|
|
2526 (self-insert-command arg)
|
|
|
2527 (and auto-fill-function
|
|
|
2528 (funcall auto-fill-function))
|
|
|
2529 )
|
|
|
2530
|
|
|
2531 ;;;-----------------------------------------------
|
|
|
2532 ;;; Wrapping Macro
|
|
|
2533 ;;;-----------------------------------------------
|
|
|
2534
|
|
|
2535 ;;; Note that because of the way byte compiling works, none of
|
|
|
2536 ;;; the functions defined with this macro get byte compiled.
|
|
|
2537
|
|
|
2538 (defmacro def-completion-wrapper (function-name type &optional new-name)
|
|
|
2539 "Add a call to update the completion database before function execution.
|
|
|
2540 TYPE is the type of the wrapper to be added. Can be :before or :under."
|
|
|
2541 (cond ((eq type ':separator)
|
|
|
2542 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2543 ''use-completion-before-separator))
|
|
|
2544 ((eq type ':before)
|
|
|
2545 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2546 ''use-completion-before-point))
|
|
|
2547 ((eq type ':backward-under)
|
|
|
2548 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2549 ''use-completion-backward-under))
|
|
|
2550 ((eq type ':backward)
|
|
|
2551 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2552 ''use-completion-backward))
|
|
|
2553 ((eq type ':under)
|
|
|
2554 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2555 ''use-completion-under-point))
|
|
|
2556 ((eq type ':under-or-before)
|
|
|
2557 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2558 ''use-completion-under-or-before-point))
|
|
|
2559 ((eq type ':minibuffer-separator)
|
|
|
2560 (list 'put (list 'quote function-name) ''completion-function
|
|
|
2561 ''use-completion-minibuffer-separator))))
|
|
|
2562
|
|
|
2563 (defun use-completion-minibuffer-separator ()
|
|
|
2564 (let ((cmpl-syntax-table cmpl-standard-syntax-table))
|
|
|
2565 (use-completion-before-separator)))
|
|
|
2566
|
|
|
2567 (defun use-completion-backward-under ()
|
|
|
2568 (use-completion-under-point)
|
|
|
2569 (if (eq last-command 'complete)
|
|
|
2570 ;; probably a failed completion if you have to back up
|
|
|
2571 (cmpl-statistics-block (record-complete-failed))))
|
|
|
2572
|
|
|
2573 (defun use-completion-backward ()
|
|
|
2574 (if (eq last-command 'complete)
|
|
|
2575 ;; probably a failed completion if you have to back up
|
|
|
2576 (cmpl-statistics-block (record-complete-failed))))
|
|
|
2577
|
|
|
2578 (defun completion-before-command ()
|
|
|
2579 (funcall (or (and (symbolp this-command)
|
|
|
2580 (get this-command 'completion-function))
|
|
|
2581 'use-completion-under-or-before-point)))
|
|
|
2582 (add-hook 'pre-command-hook 'completion-before-command)
|
|
|
2583
|
|
|
2584
|
|
|
2585 ;;;---------------------------------------------------------------------------
|
|
|
2586 ;;; Patches to standard keymaps insert completions
|
|
|
2587 ;;;---------------------------------------------------------------------------
|
|
|
2588
|
|
|
2589 ;;;-----------------------------------------------
|
|
|
2590 ;;; Separators
|
|
|
2591 ;;;-----------------------------------------------
|
|
|
2592 ;;; We've used the completion syntax table given as a guide.
|
|
|
2593 ;;;
|
|
|
2594 ;;; Global separator chars.
|
|
|
2595 ;;; We left out <tab> because there are too many special cases for it. Also,
|
|
|
2596 ;;; in normal coding it's rarely typed after a word.
|
|
|
2597 (global-set-key " " 'completion-separator-self-insert-autofilling)
|
|
|
2598 (global-set-key "!" 'completion-separator-self-insert-command)
|
|
|
2599 (global-set-key "%" 'completion-separator-self-insert-command)
|
|
|
2600 (global-set-key "^" 'completion-separator-self-insert-command)
|
|
|
2601 (global-set-key "&" 'completion-separator-self-insert-command)
|
|
|
2602 (global-set-key "(" 'completion-separator-self-insert-command)
|
|
|
2603 (global-set-key ")" 'completion-separator-self-insert-command)
|
|
|
2604 (global-set-key "=" 'completion-separator-self-insert-command)
|
|
|
2605 (global-set-key "`" 'completion-separator-self-insert-command)
|
|
|
2606 (global-set-key "|" 'completion-separator-self-insert-command)
|
|
|
2607 (global-set-key "{" 'completion-separator-self-insert-command)
|
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2608 (global-set-key "}" 'completion-separator-self-insert-command)
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2609 (global-set-key "[" 'completion-separator-self-insert-command)
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2610 (global-set-key "]" 'completion-separator-self-insert-command)
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2611 (global-set-key ";" 'completion-separator-self-insert-command)
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2612 (global-set-key "\"" 'completion-separator-self-insert-command)
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2613 (global-set-key "'" 'completion-separator-self-insert-command)
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2614 (global-set-key "#" 'completion-separator-self-insert-command)
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2615 (global-set-key "," 'completion-separator-self-insert-command)
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2616 (global-set-key "?" 'completion-separator-self-insert-command)
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2617
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2618 ;;; We include period and colon even though they are symbol chars because :
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2619 ;;; - in text we want to pick up the last word in a sentence.
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2620 ;;; - in C pointer refs. we want to pick up the first symbol
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2621 ;;; - it won't make a difference for lisp mode (package names are short)
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2622 (global-set-key "." 'completion-separator-self-insert-command)
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2623 (global-set-key ":" 'completion-separator-self-insert-command)
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2624
|
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2625 ;;; Lisp Mode diffs
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2626 (define-key lisp-mode-map "!" 'self-insert-command)
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2627 (define-key lisp-mode-map "&" 'self-insert-command)
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2628 (define-key lisp-mode-map "%" 'self-insert-command)
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2629 (define-key lisp-mode-map "?" 'self-insert-command)
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2630 (define-key lisp-mode-map "=" 'self-insert-command)
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2631 (define-key lisp-mode-map "^" 'self-insert-command)
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2632
|
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|
2633 ;;; C mode diffs.
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|
2634 (defun completion-c-mode-hook ()
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2635 (def-completion-wrapper electric-c-semi :separator)
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2636 (define-key c-mode-map "+" 'completion-separator-self-insert-command)
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2637 (define-key c-mode-map "*" 'completion-separator-self-insert-command)
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2638 (define-key c-mode-map "/" 'completion-separator-self-insert-command))
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|
2639 ;; Do this either now or whenever C mode is loaded.
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|
|
2640 (if (featurep 'cc-mode)
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2641 (completion-c-mode-hook)
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2642 (add-hook 'c-mode-hook 'completion-c-mode-hook))
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2643
|
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|
2644 ;;; FORTRAN mode diffs. (these are defined when fortran is called)
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|
|
2645 (defun completion-setup-fortran-mode ()
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2646 (define-key fortran-mode-map "+" 'completion-separator-self-insert-command)
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2647 (define-key fortran-mode-map "-" 'completion-separator-self-insert-command)
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|
|
2648 (define-key fortran-mode-map "*" 'completion-separator-self-insert-command)
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|
|
2649 (define-key fortran-mode-map "/" 'completion-separator-self-insert-command)
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|
|
2650 )
|
|
|
2651
|
|
|
2652 ;;;-----------------------------------------------
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|
|
2653 ;;; End of line chars.
|
|
|
2654 ;;;-----------------------------------------------
|
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|
2655 (def-completion-wrapper newline :separator)
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|
|
2656 (def-completion-wrapper newline-and-indent :separator)
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|
2657 (def-completion-wrapper comint-send-input :separator)
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|
|
2658 (def-completion-wrapper exit-minibuffer :minibuffer-separator)
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|
|
2659 (def-completion-wrapper eval-print-last-sexp :separator)
|
|
|
2660 (def-completion-wrapper eval-last-sexp :separator)
|
|
|
2661 ;;(def-completion-wrapper minibuffer-complete-and-exit :minibuffer)
|
|
|
2662
|
|
|
2663 ;;;-----------------------------------------------
|
|
|
2664 ;;; Cursor movement
|
|
|
2665 ;;;-----------------------------------------------
|
|
|
2666
|
|
|
2667 (def-completion-wrapper next-line :under-or-before)
|
|
|
2668 (def-completion-wrapper previous-line :under-or-before)
|
|
|
2669 (def-completion-wrapper beginning-of-buffer :under-or-before)
|
|
|
2670 (def-completion-wrapper end-of-buffer :under-or-before)
|
|
|
2671 (def-completion-wrapper beginning-of-line :under-or-before)
|
|
|
2672 (def-completion-wrapper end-of-line :under-or-before)
|
|
|
2673 (def-completion-wrapper forward-char :under-or-before)
|
|
|
2674 (def-completion-wrapper forward-word :under-or-before)
|
|
|
2675 (def-completion-wrapper forward-sexp :under-or-before)
|
|
|
2676 (def-completion-wrapper backward-char :backward-under)
|
|
|
2677 (def-completion-wrapper backward-word :backward-under)
|
|
|
2678 (def-completion-wrapper backward-sexp :backward-under)
|
|
|
2679
|
|
|
2680 (def-completion-wrapper delete-backward-char :backward)
|
|
|
2681 (def-completion-wrapper delete-backward-char-untabify :backward)
|
|
|
2682
|
|
|
2683 ;;; Tests --
|
|
|
2684 ;;; foobarbiz
|
|
|
2685 ;;; foobar
|
|
|
2686 ;;; fooquux
|
|
|
2687 ;;; fooper
|
|
|
2688
|
|
|
2689 (cmpl-statistics-block
|
|
|
2690 (record-completion-file-loaded))
|
|
|
2691
|
|
|
2692 ;;; completion.el ends here
|
