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195
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1 ;;; iswitchb.el --- switch between buffers using substrings
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2
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3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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4
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5 ;; Author: Stephen Eglen <stephen@cns.ed.ac.uk>
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6 ;; Maintainer: Stephen Eglen <stephen@cns.ed.ac.uk>
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7 ;; Keywords: extensions
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8 ;; location: http://www.cogs.susx.ac.uk/users/stephene/emacs
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203
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9 ;; RCS: $Id: iswitchb.el,v 1.2 1997/10/12 01:39:45 steve Exp $
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195
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10
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11 ;; This file is part of GNU Emacs.
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12
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13 ;; GNU Emacs is free software; you can redistribute it and/or modify
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14 ;; it under the terms of the GNU General Public License as published by
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15 ;; the Free Software Foundation; either version 2, or (at your option)
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16 ;; any later version.
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17
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18 ;; GNU Emacs is distributed in the hope that it will be useful,
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19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;; GNU General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;; Boston, MA 02111-1307, USA.
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27
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28 ;;; Installation:
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29
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30 ;; To get the functions in this package bound to keys, do
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31 ;; (iswitchb-default-keybindings)
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32
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33 ;;; Commentary:
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34
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35 ;; As you type in a substring, the list of buffers currently matching
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36 ;; the substring are displayed as you type. The list is ordered so
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37 ;; that the most recent buffers visited come at the start of the list.
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38 ;; The buffer at the start of the list will be the one visited when
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39 ;; you press return. By typing more of the substring, the list is
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40 ;; narrowed down so that gradually the buffer you want will be at the
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41 ;; top of the list. Alternatively, you can use C-s an C-r to rotate
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42 ;; buffer names in the list until the one you want is at the top of
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43 ;; the list. Completion is also available so that you can see what is
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44 ;; common to all of the matching buffers as you type.
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45
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46 ;; This code is similar to a couple of other packages. Michael R Cook
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47 ;; <mcook@cognex.com wrote a similar buffer switching package, but
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48 ;; does exact matching rather than substring matching on buffer names.
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49 ;; I also modified a couple of functions from icomplete.el to provide
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50 ;; the completion feedback in the minibuffer.
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51
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52 ;;; Example
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53
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54 ;;If I have two buffers called "123456" and "123", with "123456" the
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55 ;;most recent, when I use iswitchb, I first of all get presented with
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56 ;;the list of all the buffers
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57 ;;
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58 ;; iswitch {123456,123}
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59 ;;
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60 ;; If I then press 2:
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61 ;; iswitch 2[3]{123456,123}
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62 ;;
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63 ;; The list in {} are the matching buffers, most recent first (buffers
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64 ;; visible in the current frame are put at the end of the list by
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65 ;; default). At any time I can select the item at the head of the
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66 ;; list by pressing RET. I can also bring the put the first element
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67 ;; at the end of the list by pressing C-s, or put the last element at
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68 ;; the head of the list by pressing C-r. The item in [] indicates
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69 ;; what can be added to my input by pressing TAB. In this case, I
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70 ;; will get "3" added to my input. So, press TAB:
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71 ;; iswitch 23{123456,123}
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72 ;;
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73 ;; At this point, I still have two matching buffers.
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74 ;; If I want the first buffer in the list, I simply press RET. If I
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75 ;; wanted the second in the list, I could press C-s to move it to the
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76 ;; top of the list and then RET to select it.
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77 ;;
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78 ;;However, If I type 4, I only have one match left:
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79 ;; iswitch 234[123456] [Matched]
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80 ;;
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81 ;;Since there is only one matching buffer left, it is given in [] and we
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82 ;;see the text [Matched] afterwards. I can now press TAB or RET to go
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83 ;;to that buffer.
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84 ;;
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85 ;; If however, I now type "a":
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86 ;; iswitch 234a [No match]
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87 ;; There are no matching buffers. If I press RET or TAB, I can be
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88 ;; prompted to create a new buffer called "234a".
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89 ;;
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90 ;; Of course, where this function comes in really useful is when you
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91 ;; can specify the buffer using only a few keystrokes. In the above
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92 ;; example, the quickest way to get to the "123456" buffer would be
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93 ;; just to type 4 and then RET (assuming there isnt any newer buffer
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94 ;; with 4 in its name).
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95
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96 ;; To see a full list of all matching buffers in a separate buffer,
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97 ;; hit ? or press TAB when there are no further completions to the
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98 ;; substring.
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99
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100 ;; The buffer at the head of the list can be killed by pressing C-k.
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101 ;; If the buffer needs saving, you will be queried before the buffer
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102 ;; is killed.
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103
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104 ;; If you find that the file you are after is not in a buffer, you can
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105 ;; press C-x C-f to immediately drop into find-file.
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106
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107 ;;
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108 ;; See the doc string of iswitchb for full keybindings and features.
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109 ;; (describe-function 'iswitchb)
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110
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111 ;;; Customisation
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112
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113 ;; See the User Variables section below for easy ways to change the
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114 ;; functionality of the program. These are accessible using the
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115 ;; custom package.
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116 ;; To modify the keybindings, use the hook provided. For example:
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117 ;;(add-hook 'iswitchb-define-mode-map-hook
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118 ;; 'iswitchb-my-keys)
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119 ;;
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120 ;;(defun iswitchb-my-keys ()
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121 ;; "Add my keybings for iswitchb."
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122 ;; (define-key iswitchb-mode-map " " 'iswitchb-next-match)
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123 ;; )
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124 ;;
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125 ;; Seeing all the matching buffers.
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126 ;;
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127 ;; If you have many matching buffers, they may not all fit onto one
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128 ;; line of the minibuffer. In this case, you should use rsz-mini
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129 ;; (resize-minibuffer-mode). You can also limit iswitchb so that it
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130 ;; only shows a certain number of lines -- see the documentation for
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131 ;; `iswitchb-minibuffer-setup-hook'.
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132
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133
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134 ;; Changing the list of buffers.
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135
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136 ;; By default, the list of current buffers is most recent first,
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137 ;; oldest last, with the exception that the buffers visible in the
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138 ;; current frame are put at the end of the list. A hook exists to
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139 ;; allow other functions to order the list. For example, if you add:
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140 ;;
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141 ;; (add-hook 'iswitchb-make-buflist-hook 'iswitchb-summaries-to-end)
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142 ;;
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143 ;; then all buffers matching "Summary" are moved to the end of the
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144 ;; list. (I find this handy for keeping the INBOX Summary and so on
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145 ;; out of the way.) It also moves buffers matching "output\*$" to the
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146 ;; end of the list (these are created by AUC TeX when compiling.)
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147 ;; Other functions could be made available which alter the list of
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148 ;; matching buffers (either deleting or rearranging elements.)
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149
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150 ;; Font-Lock
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151
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152 ;; If you have font-lock loaded, the first matching buffer is
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153 ;; highlighted. To switch this off, set (setq iswitchb-use-fonts nil)
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154 ;; I don't use font-lock that much, so I've hardcoded the faces. If
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155 ;; this is too harsh, let me know. Colouring of the matching buffer
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156 ;; name was suggested by Carsten Dominik (dominik@strw.leidenuniv.nl)
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157
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158 ;;; Comparison with iswitch-buffer
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159
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160 ;; This package is a rewrite of iswitch-buffer, using the minibuffer
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161 ;; rather than the echo area. The advantages of using the minibuffer
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162 ;; are several:
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163 ;; o minibuffer has more powerful editing facilities
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164 ;; o doesnt interfere with other packages that use the echo area
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165 ;; o *Messages* buffer doesnt get filled up with all of the messages that
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166 ;; go to the modeline
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167 ;; o cursor is in the minibuffer, which somehow looks right.
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168 ;; o minibuffer can be resized dynamically to show all the possible matching
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169 ;; buffers rather than just the first line's worth (using rsz-mini).
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170 ;;
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171 ;; Disadvantages:
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172 ;; o cant change the prompt to indicate status of searching (eg whether
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173 ;; regexp searching is currently on).
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174
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175
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176 ;;; TODO
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177 ;; Could this selection also be used for other buffer selection
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178 ;; routines, such as append-to-buffer and kill-buffer?
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179
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180 ;; Pressing Tab key twice (without completion) does not scroll the
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181 ;; list of buffers.
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182
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183 ;;; Acknowledgements
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184
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185 ;; Thanks to Jari Aalto <jari.aalto@poboxes.com> for help with the
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186 ;; first version of this package, iswitch-buffer. Thanks also to many
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187 ;; others for testing earlier versions.
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188
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189 ;;; Code:
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190
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191 ;; Set up the custom library.
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192 ;; taken from http://www.dina.kvl.dk/~abraham/custom/
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193 (eval-and-compile
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194 (condition-case ()
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195 (require 'custom)
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196 (error nil))
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197 (if (and (featurep 'custom) (fboundp 'custom-declare-variable))
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198 nil ;; We've got what we needed
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199 ;; We have the old custom-library, hack around it!
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200 (defmacro defgroup (&rest args)
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201 nil)
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202 (defmacro defcustom (var value doc &rest args)
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203 (` (defvar (, var) (, value) (, doc))))))
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204
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205 ;;; User Variables
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206 ;;
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207 ;; These are some things you might want to change.
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208
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209 (defgroup iswitchb nil
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210 "switch between buffers using substrings."
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211 :group 'extensions
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212 ;; These links are to be added in later versions of custom and
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213 ;; so are currently commented out.
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214 :link '(emacs-commentary-link :tag "Commentary" "iswitchb.el")
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215 :link '(emacs-library-link :tag "Lisp File" "iswitchb.el")
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216 )
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217
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218
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219 (defcustom iswitchb-case case-fold-search
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220 "*Non-nil if searching of buffer names should ignore case."
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221 :type 'boolean
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222 :group 'iswitchb)
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223
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224 (defcustom iswitchb-buffer-ignore
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225 '("^ ")
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226 "*List of regexps or functions matching buffer names to ignore.
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227 For example, traditional behavior is not to list buffers whose names begin
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228 with a space, for which the regexp is `^ '. See the source file for
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229 example functions that filter buffernames."
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230 :type '(repeat regexp)
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231 :group 'iswitchb)
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232
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233
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234 ;;; Examples for setting the value of iswitchb-buffer-ignore
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235 ;(defun -c-mode (name)
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236 ; "Ignore all c mode buffers -- example function for iswitchb."
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237 ; (save-excursion
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238 ; (set-buffer name)
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239 ; (string-match "^C$" mode-name)))
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240
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241 ;(setq iswitchb-buffer-ignore '("^ " ignore-c-mode))
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242 ;(setq iswitchb-buffer-ignore '("^ " "\\.c$" "\\.h$"))
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243
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244 (defcustom iswitchb-default-method 'always-frame
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245 "*How to switch to new buffer when using `iswitchb-buffer'.
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246 Possible values:
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247 `samewindow' Show new buffer in same window
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248 `otherwindow' Show new buffer in another window (same frame)
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249 `display' Display buffer in another window without switching to it
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250 `otherframe' Show new buffer in another frame
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251 `maybe-frame' If a buffer is visible in another frame, prompt to ask if you
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252 you want to see the buffer in the same window of the current
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253 frame or in the other frame.
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254 `always-frame' If a buffer is visible in another frame, raise that
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255 frame. Otherwise, visit the buffer in the same window."
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256 :type '(choice (const :tag "samewindow" samewindow)
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257 (const :tag "otherwindow" otherwindow)
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258 (const :tag "display" display)
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259 (const :tag "otherframe" otherframe)
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260 (const :tag "maybe-frame" maybe-frame)
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261 (const :tag "always-frame" always-frame))
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262 :group 'iswitchb)
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263
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264
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265 (defcustom iswitchb-regexp nil
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266 "*Non-nil means that `iswitchb' will do regexp matching.
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267 Value can be toggled within `iswitchb'."
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268 :type 'boolean
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269 :group 'iswitchb)
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270
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271
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272 (defcustom iswitchb-newbuffer t
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273 "*Non-nil means create new buffer if no buffer matches substring.
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274 See also `iswitchb-prompt-newbuffer'."
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275 :type 'boolean
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276 :group 'iswitchb)
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277
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278
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279 (defcustom iswitchb-prompt-newbuffer t
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280 "*Non-nil means prompt user to confirm before creating new buffer.
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281 See also `iswitchb-newbuffer'."
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282 :type 'boolean
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283 :group 'iswitchb)
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284
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285
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286 (defcustom iswitchb-define-mode-map-hook nil
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287 "*Hook to define keys in `iswitchb-mode-map' for extra keybindings."
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288 :type 'hook
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289 :group 'iswitchb)
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290
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291
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292
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293 (defcustom iswitchb-use-fonts t
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294 "*Non-nil means use fonts for showing first match."
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295 :type 'boolean
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296 :group 'iswitchb)
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297
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298
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299 (defcustom iswitchb-make-buflist-hook nil
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300 "*Hook to run when list of matching buffers is created."
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301 :type 'hook
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302 :group 'iswitchb)
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303
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304
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305
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306 (defvar iswitchb-method nil
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307 "*Stores the method for viewing the selected buffer.
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308 Its value is one of `samewindow', `otherwindow', `display', `otherframe',
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309 `maybe-frame' or `always-frame'. See `iswitchb-default-method' for
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310 details of values.")
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311
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312 (defvar iswitchb-all-frames 'visible
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313 "*Argument to pass to `walk-windows' when finding visible buffers.
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314 See documentation of `walk-windows' for useful values.")
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315
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316
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317
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318 ;; Do we need the variable iswitchb-use-mycompletion?
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319
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320
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321 ;;; Internal Variables
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322 (defvar iswitchb-minibuffer-setup-hook nil
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323 "Iswitchb-specific customization of minibuffer setup.
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324
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325 This hook is run during minibuffer setup iff `iswitchb' will be active.
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326 It is intended for use in customizing iswitchb for interoperation
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327 with other packages. For instance:
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328
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329 \(add-hook 'iswitchb-minibuffer-setup-hook
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330 \(function
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331 \(lambda ()
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332 \(make-local-variable 'resize-minibuffer-window-max-height)
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333 \(setq resize-minibuffer-window-max-height 3))))
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334
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335 will constrain rsz-mini to a maximum minibuffer height of 3 lines when
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336 iswitchb is running. Copied from `icomplete-minibuffer-setup-hook'.")
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337
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338 (defvar iswitchb-eoinput 1
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339 "Point where minibuffer input ends and completion info begins.
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340 Copied from `icomplete-eoinput'.")
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341 (make-variable-buffer-local 'iswitchb-eoinput)
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342
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343
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344 (defvar iswitchb-buflist nil
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345 "Stores the current list of buffers that will be searched through.
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346 The list is ordered, so that the most recent buffers come first,
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347 although by default, the buffers visible in the current frame are put
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348 at the end of the list. Created by `iswitchb-make-buflist'.")
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349
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350 ;; todo -- is this necessary?
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351
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352 (defvar iswitchb-use-mycompletion nil
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353 "Non-nil means use `iswitchb-buffer' completion feedback.
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354 Should only be set to t by iswitchb functions, so that it doesn't
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355 interfere with other minibuffer usage.")
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356
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357 (defvar iswitchb-change-word-sub nil
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358 "Private variable used by `iswitchb-word-matching-substring'.")
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359
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360
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361 (defvar iswitchb-common-match-string nil
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362 "Stores the string that is common to all matching buffers.")
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363
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364
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365 (defvar iswitchb-rescan nil
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366 "Non-nil means we need to regenerate the list of matching buffers.")
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367
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368 (defvar iswitchb-text nil
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369 "Stores the users string as it is typed in.")
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370
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371 (defvar iswitchb-matches nil
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372 "List of buffers currenly matching `iswitchb-text'.")
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373
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374 (defvar iswitchb-mode-map nil
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375 "Keymap for `iswitchb-buffer'.")
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376
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377 (defvar iswitchb-history nil
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378 "History of buffers selected using `iswitchb-buffer'.")
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379
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380 (defvar iswitchb-exit nil
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381 "Flag to monitor how `iswitchb-buffer' exits.
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382 If equal to `takeprompt', we use the prompt as the buffer name to be
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383 selected.")
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384
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385 (defvar iswitchb-buffer-ignore-orig nil
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386 "Stores original value of `iswitchb-buffer-ignore'.")
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387
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388 (defvar iswitchb-xemacs (string-match "XEmacs" (emacs-version))
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389 "Non-nil if we are running XEmacs. Otherwise, assume we are running Emacs.")
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390
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391
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392 ;;; FUNCTIONS
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393
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394
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395 ;;; ISWITCHB KEYMAP
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396 (defun iswitchb-define-mode-map ()
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397 "Set up the keymap for `iswitchb-buffer'."
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398 (interactive)
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399 (let (map)
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400 ;; generated every time so that it can inheret new functions.
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401 ;;(or iswitchb-mode-map
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402
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403 (setq map (copy-keymap minibuffer-local-map))
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404 (define-key map "?" 'iswitchb-completion-help)
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405 (define-key map "\C-s" 'iswitchb-next-match)
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406 (define-key map "\C-r" 'iswitchb-prev-match)
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407 (define-key map "\t" 'iswitchb-complete)
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408 (define-key map "\C-j" 'iswitchb-select-buffer-text)
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409 (define-key map "\C-t" 'iswitchb-toggle-regexp)
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410 (define-key map "\C-x\C-f" 'iswitchb-find-file)
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411 ;;(define-key map "\C-a" 'iswitchb-toggle-ignore)
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412 (define-key map "\C-c" 'iswitchb-toggle-case)
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413 (define-key map "\C-k" 'iswitchb-kill-buffer)
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414 (setq iswitchb-mode-map map)
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415 (run-hooks 'iswitchb-define-mode-map-hook)
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416 ))
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417
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418
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419
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420 ;;; MAIN FUNCTION
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421 (defun iswitchb ()
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422 "Switch to buffer matching a substring.
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423 As you type in a string, all of the buffers matching the string are
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424 displayed. When you have found the buffer you want, it can then be
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425 selected. As you type, most keys have their normal keybindings,
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426 except for the following:
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427 \\<iswitchb-mode-map>
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428
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429 RET Select the buffer at the front of the list of matches. If the
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430 list is empty, possibly prompt to create new buffer.
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431
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432 \\[iswitchb-select-buffer-text] Select the current prompt as the buffer.
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433 If no buffer is found, prompt for a new one.
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434
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435 \\[iswitchb-next-match] Put the first element at the end of the list.
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436 \\[iswitchb-prev-match] Put the last element at the start of the list.
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437 \\[iswitchb-complete] Complete a common suffix to the current string that
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438 matches all buffers. If there is only one match, select that buffer.
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439 If there is no common suffix, show a list of all matching buffers
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440 in a separate window.
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441 \\[iswitchb-toggle-regexp] Toggle rexep searching.
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442 \\[iswitchb-toggle-case] Toggle case-sensitive searching of buffer names.
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443 \\[iswitchb-completion-help] Show list of matching buffers in separate window.
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444 \\[iswitchb-find-file] Exit iswitchb and drop into find-file.
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445 \\[iswitchb-kill-buffer] Kill buffer at head of buffer list."
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446 ;;\\[iswitchb-toggle-ignore] Toggle ignoring certain buffers (see \
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447 ;;`iswitchb-buffer-ignore')
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448
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449 (let
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450 (
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451 prompt
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452 buf-sel
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453 iswitchb-final-text
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454 (minibuffer-confirm-incomplete nil) ;XEmacs todo: prevent `;confirm'
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455 (icomplete-mode nil) ;; prevent icomplete starting up
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456 ;; can only use fonts if they have been bound.
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457 (iswitchb-use-fonts (and iswitchb-use-fonts
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458 (boundp 'font-lock-comment-face)
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459 (boundp 'font-lock-function-name-face)))
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460 )
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461
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462 (iswitchb-define-mode-map)
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463 (setq iswitchb-exit nil)
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464 (setq iswitchb-rescan t)
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465 (setq iswitchb-text "")
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466 (iswitchb-set-matches)
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467 (setq prompt (format "iswitch "))
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468 (iswitchb-make-buflist)
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469 (let
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470 ((minibuffer-local-completion-map iswitchb-mode-map))
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471 ;; prompt the user for the buffer name
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472 (setq iswitchb-final-text (completing-read prompt
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473 ;;nil
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474 '(("dummy".1))
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475 ;;("2".2) ("3".3))
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476 nil nil
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477 nil;init string
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|
478 'iswitchb-history)))
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479
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480 ;;(message "chosen text %s" iswitchb-final-text)
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481 ;; Choose the buffer name: either the text typed in, or the head
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|
482 ;; of the list of matches
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483
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484 (cond ( (eq iswitchb-exit 'findfile)
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485 (call-interactively 'find-file))
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|
486
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487 (t
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488 (if (or
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489 (eq iswitchb-exit 'takeprompt)
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490 (null iswitchb-matches))
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|
491 (setq buf-sel iswitchb-final-text)
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|
|
492 ;; else take head of list
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|
|
493 (setq buf-sel (car iswitchb-matches)))
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494
|
|
|
495 ;; Or possibly choose the default buffer
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|
496 (if (equal iswitchb-final-text "")
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|
|
497 (setq buf-sel (car iswitchb-matches)))
|
|
|
498
|
|
|
499 ;; View the buffer
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|
|
500 (message "go to buf %s" buf-sel)
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|
|
501 ;; Check buf-sel is non-nil.
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|
|
502 (if buf-sel
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|
|
503 (if (get-buffer buf-sel)
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|
|
504 ;; buffer exists, so view it and then exit
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|
|
505 (iswitchb-visit-buffer buf-sel)
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|
|
506 ;; else buffer doesnt exist
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|
|
507 (iswitchb-possible-new-buffer buf-sel)))
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|
|
508 ))
|
|
|
509
|
|
|
510 ))
|
|
|
511
|
|
|
512
|
|
|
513 ;;; COMPLETION CODE
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|
|
514
|
|
|
515 (defun iswitchb-set-common-completion ()
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|
|
516 "Find common completion of `iswitchb-text' in `iswitchb-matches'.
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|
|
517 The result is stored in `iswitchb-common-match-string'."
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|
|
518
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|
|
519 (let* (val)
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|
|
520 (setq iswitchb-common-match-string nil)
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|
|
521 (if (and iswitchb-matches
|
|
|
522 (stringp iswitchb-text)
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|
|
523 (> (length iswitchb-text) 0))
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|
|
524 (if (setq val (iswitchb-find-common-substring
|
|
|
525 iswitchb-matches iswitchb-text))
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|
|
526 (setq iswitchb-common-match-string val)))
|
|
|
527 val
|
|
|
528 ))
|
|
|
529
|
|
|
530
|
|
|
531 (defun iswitchb-complete ()
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|
|
532 "Try and complete the current pattern amongst the buffer names."
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|
|
533 (interactive)
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|
|
534 (let (res)
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|
|
535 (cond ((not iswitchb-matches)
|
|
|
536 (iswitchb-completion-help)
|
|
|
537 )
|
|
|
538
|
|
|
539 ((eq 1 (length iswitchb-matches))
|
|
|
540 ;; only one choice, so select it.
|
|
|
541 (exit-minibuffer))
|
|
|
542
|
|
|
543 (t
|
|
|
544 ;; else there could be some completions
|
|
|
545
|
|
|
546 (setq res (iswitchb-find-common-substring
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|
|
547 iswitchb-matches iswitchb-text))
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|
|
548 (if (and (not (memq res '(t nil)))
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|
|
549 (not (equal res iswitchb-text)))
|
|
|
550 ;; found something to complete, so put it in the minibuff.
|
|
|
551 (progn
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|
|
552 (setq iswitchb-rescan nil)
|
|
|
553 (delete-region (point-min) (point))
|
|
|
554 (insert res))
|
|
|
555 ;; else nothing to complete
|
|
|
556 (iswitchb-completion-help)
|
|
|
557 )
|
|
|
558 )
|
|
|
559 )))
|
|
|
560
|
|
|
561
|
|
|
562
|
|
|
563 ;;; TOGGLE FUNCTIONS
|
|
|
564
|
|
|
565 (defun iswitchb-toggle-case ()
|
|
|
566 "Toggle the value of `iswitchb-case'."
|
|
|
567 (interactive)
|
|
|
568 (setq iswitchb-case (not iswitchb-case))
|
|
|
569 ;; ask for list to be regenerated.
|
|
|
570 (setq iswitchb-rescan t)
|
|
|
571 )
|
|
|
572
|
|
|
573 (defun iswitchb-toggle-regexp ()
|
|
|
574 "Toggle the value of `iswitchb-regexp'."
|
|
|
575 (interactive)
|
|
|
576 (setq iswitchb-regexp (not iswitchb-regexp))
|
|
|
577 ;; ask for list to be regenerated.
|
|
|
578 (setq iswitchb-rescan t)
|
|
|
579 )
|
|
|
580
|
|
|
581
|
|
|
582 (defun iswitchb-toggle-ignore ()
|
|
|
583 "Toggle ignoring buffers specified with `iswitchb-buffer-ignore'."
|
|
|
584 (interactive)
|
|
|
585 (if iswitchb-buffer-ignore
|
|
|
586 (progn
|
|
|
587 (setq iswitchb-buffer-ignore-orig iswitchb-buffer-ignore)
|
|
|
588 (setq iswitchb-buffer-ignore nil)
|
|
|
589 )
|
|
|
590 ;; else
|
|
|
591 (setq iswitchb-buffer-ignore iswitchb-buffer-ignore-orig)
|
|
|
592 )
|
|
|
593 ;; ask for list to be regenerated.
|
|
|
594 (setq iswitchb-rescan t)
|
|
|
595 )
|
|
|
596
|
|
|
597
|
|
|
598 (defun iswitchb-select-buffer-text ()
|
|
|
599 "Select the buffer named by the prompt.
|
|
|
600 If no buffer exactly matching the prompt exists, maybe create a new one."
|
|
|
601 (interactive)
|
|
|
602 (setq iswitchb-exit 'takeprompt)
|
|
|
603 (exit-minibuffer))
|
|
|
604
|
|
|
605
|
|
|
606
|
|
|
607 (defun iswitchb-find-file ()
|
|
|
608 "Drop into find-file from buffer switching."
|
|
|
609 (interactive)
|
|
|
610 (setq iswitchb-exit 'findfile)
|
|
|
611 (exit-minibuffer))
|
|
|
612
|
|
|
613 (defun iswitchb-next-match ()
|
|
|
614 "Put first element of `iswitchb-matches' at the end of the list."
|
|
|
615 (interactive)
|
|
|
616 (let ((next (cadr iswitchb-matches)))
|
|
|
617 (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist next))
|
|
|
618 (setq iswitchb-rescan t)
|
|
|
619 ))
|
|
|
620
|
|
|
621 (defun iswitchb-prev-match ()
|
|
|
622 "Put last element of `iswitchb-matches' at the front of the list."
|
|
|
623 (interactive)
|
|
|
624 (let ((prev (car (last iswitchb-matches))))
|
|
|
625 (setq iswitchb-buflist (iswitchb-chop iswitchb-buflist prev))
|
|
|
626 (setq iswitchb-rescan t)
|
|
|
627 ))
|
|
|
628
|
|
|
629
|
|
|
630
|
|
|
631
|
|
|
632 (defun iswitchb-chop (list elem)
|
|
|
633 "Remove all elements before ELEM and put them at the end of LIST."
|
|
|
634 (let ((ret nil)
|
|
|
635 (next nil)
|
|
|
636 (sofar nil))
|
|
|
637 (while (not ret)
|
|
|
638 (setq next (car list))
|
|
|
639 (if (equal next elem)
|
|
|
640 (setq ret (append list (nreverse sofar)))
|
|
|
641 ;; else
|
|
|
642 (progn
|
|
|
643 (setq list (cdr list))
|
|
|
644 (setq sofar (cons next sofar)))))
|
|
|
645 ret))
|
|
|
646
|
|
|
647
|
|
|
648
|
|
|
649
|
|
|
650 ;;; CREATE LIST OF ALL CURRENT BUFFERS
|
|
|
651
|
|
|
652
|
|
|
653 (defun iswitchb-make-buflist ()
|
|
|
654 "Set `iswitchb-buflist' to the current list of buffers.
|
|
|
655 Currently visible buffers are put at the end of the list.
|
|
|
656 The hook `iswitchb-make-buflist-hook' is run after the list has been
|
|
|
657 created to allow the user to further modify the order of the buffer names
|
|
|
658 in this list."
|
|
|
659 (setq iswitchb-buflist
|
|
|
660 (let* ((iswitchb-current-buffers (iswitchb-get-buffers-in-frames))
|
|
|
661 (buflist
|
|
|
662 (delq nil
|
|
|
663 (mapcar
|
|
|
664 (lambda (x)
|
|
|
665 (let ((b-name (buffer-name x)))
|
|
|
666 (if (not
|
|
|
667 (or
|
|
|
668 (iswitchb-ignore-buffername-p b-name)
|
|
|
669 (memq b-name iswitchb-current-buffers)))
|
|
|
670 b-name)))
|
|
|
671 (buffer-list)))))
|
|
|
672 (nconc buflist iswitchb-current-buffers)
|
|
|
673 (run-hooks 'iswitchb-make-buflist-hook)
|
|
|
674 buflist)))
|
|
|
675
|
|
|
676 (defun iswitchb-to-end (lst)
|
|
|
677 "Move the elements from LST to the end of BUFLIST."
|
|
|
678 (mapcar
|
|
|
679 (lambda (elem)
|
|
|
680 (setq buflist (delq elem buflist)))
|
|
|
681 lst)
|
|
|
682 (nconc buflist lst))
|
|
|
683
|
|
|
684
|
|
|
685
|
|
|
686 (defun iswitchb-get-buffers-in-frames (&optional current)
|
|
|
687 "Return the list of buffers that are visible in the current frame.
|
|
|
688 If optional argument `current' is given, restrict searching to the
|
|
|
689 current frame, rather than all frames, regardless of value of
|
|
|
690 `iswitchb-all-frames'."
|
|
|
691 (let ((iswitchb-bufs-in-frame nil))
|
|
|
692 (walk-windows 'iswitchb-get-bufname nil
|
|
|
693 (if current
|
|
|
694 nil
|
|
|
695 iswitchb-all-frames))
|
|
|
696 iswitchb-bufs-in-frame))
|
|
|
697
|
|
|
698
|
|
|
699 (defun iswitchb-get-bufname (win)
|
|
|
700 "Used by `iswitchb-get-buffers-in-frames' to walk through all windows."
|
|
|
701 (let ((buf (buffer-name (window-buffer win))))
|
|
|
702 (if (not (member buf iswitchb-bufs-in-frame))
|
|
|
703 ;; Only add buf if it is not already in list.
|
|
|
704 ;; This prevents same buf in two different windows being
|
|
|
705 ;; put into the list twice.
|
|
|
706 (setq iswitchb-bufs-in-frame
|
|
|
707 (cons buf iswitchb-bufs-in-frame)))))
|
|
|
708
|
|
|
709
|
|
|
710 ;;; FIND MATCHING BUFFERS
|
|
|
711
|
|
|
712
|
|
|
713 (defun iswitchb-set-matches ()
|
|
|
714 "Set `iswitchb-matches' to the list of buffers matching prompt."
|
|
|
715 (if iswitchb-rescan
|
|
|
716 (setq iswitchb-matches
|
|
|
717 (let* ((buflist iswitchb-buflist)
|
|
|
718 )
|
|
|
719 (iswitchb-get-matched-buffers iswitchb-text iswitchb-regexp
|
|
|
720 buflist)))))
|
|
|
721
|
|
|
722 (defun iswitchb-get-matched-buffers (regexp
|
|
|
723 &optional string-format buffer-list)
|
|
|
724 "Return buffers matching REGEXP.
|
|
|
725 If STRING-FORMAT is non-nil, consider REGEXP as string.
|
|
|
726 BUFFER-LIST can be list of buffers or list of strings."
|
|
|
727 (let* ((case-fold-search iswitchb-case)
|
|
|
728 ;; need reverse since we are building up list backwards
|
|
|
729 (list (reverse buffer-list))
|
|
|
730 (do-string (stringp (car list)))
|
|
|
731 name
|
|
|
732 ret
|
|
|
733 )
|
|
|
734 (mapcar
|
|
|
735 (lambda (x)
|
|
|
736
|
|
|
737 (if do-string
|
|
|
738 (setq name x) ;We already have the name
|
|
|
739 (setq name (buffer-name x)))
|
|
|
740
|
|
|
741 (cond
|
|
|
742 ((and (or (and string-format (string-match regexp name))
|
|
|
743 (and (null string-format)
|
|
|
744 (string-match (regexp-quote regexp) name)))
|
|
|
745
|
|
|
746 ;; todo (not (iswitchb-ignore-buffername-p name))
|
|
|
747 )
|
|
|
748 (setq ret (cons name ret))
|
|
|
749 )))
|
|
|
750 list)
|
|
|
751 ret
|
|
|
752 ))
|
|
|
753
|
|
|
754
|
|
|
755
|
|
|
756
|
|
|
757 (defun iswitchb-ignore-buffername-p (bufname)
|
|
|
758 "Return t if the buffer BUFNAME should be ignored."
|
|
|
759 (let ((data (match-data))
|
|
|
760 (re-list iswitchb-buffer-ignore)
|
|
|
761 ignorep
|
|
|
762 nextstr
|
|
|
763 )
|
|
|
764 (while re-list
|
|
|
765 (setq nextstr (car re-list))
|
|
|
766 (cond
|
|
|
767 ((stringp nextstr)
|
|
|
768 (if (string-match nextstr bufname)
|
|
|
769 (progn
|
|
|
770 (setq ignorep t)
|
|
|
771 (setq re-list nil))))
|
|
|
772 ((fboundp nextstr)
|
|
|
773 (if (funcall nextstr bufname)
|
|
|
774 (progn
|
|
|
775 (setq ignorep t)
|
|
|
776 (setq re-list nil))
|
|
|
777 ))
|
|
|
778 )
|
|
|
779 (setq re-list (cdr re-list)))
|
|
|
780 (store-match-data data)
|
|
|
781
|
|
|
782 ;; return the result
|
|
|
783 ignorep)
|
|
|
784 )
|
|
|
785
|
|
|
786
|
|
|
787
|
|
|
788 (defun iswitchb-word-matching-substring (word)
|
|
|
789 "Return part of WORD before 1st match to `iswitchb-change-word-sub'.
|
|
|
790 If `iswitchb-change-word-sub' cannot be found in WORD, return nil."
|
|
|
791 (let ((case-fold-search iswitchb-case))
|
|
|
792 (let ((m (string-match iswitchb-change-word-sub word)))
|
|
|
793 (if m
|
|
|
794 (substring word m)
|
|
|
795 ;; else no match
|
|
|
796 nil))))
|
|
|
797
|
|
|
798
|
|
|
799
|
|
|
800
|
|
|
801
|
|
|
802
|
|
|
803 (defun iswitchb-find-common-substring (lis subs)
|
|
|
804 "Return common string following SUBS in each element of LIS."
|
|
|
805 (let (res
|
|
|
806 alist
|
|
|
807 iswitchb-change-word-sub
|
|
|
808 )
|
|
|
809 (setq iswitchb-change-word-sub
|
|
|
810 (if iswitchb-regexp
|
|
|
811 subs
|
|
|
812 (regexp-quote subs)))
|
|
|
813 (setq res (mapcar 'iswitchb-word-matching-substring lis))
|
|
|
814 (setq res (delq nil res)) ;; remove any nil elements (shouldnt happen)
|
|
|
815 (setq alist (mapcar 'iswitchb-makealist res)) ;; could use an OBARRAY
|
|
|
816
|
|
|
817 ;; try-completion returns t if there is an exact match.
|
|
|
818 (let ((completion-ignore-case iswitchb-case))
|
|
|
819
|
|
|
820 (try-completion subs alist)
|
|
|
821 )))
|
|
|
822
|
|
|
823
|
|
|
824 (defun iswitchb-makealist (res)
|
|
|
825 "Return dotted pair (RES . 1)."
|
|
|
826 (cons res 1))
|
|
|
827
|
|
|
828 ;; from Wayne Mesard <wmesard@esd.sgi.com>
|
|
|
829 (defun iswitchb-rotate-list (lis)
|
|
|
830 "Destructively removes the last element from LIS.
|
|
|
831 Return the modified list with the last element prepended to it."
|
|
|
832 (if (<= (length lis) 1)
|
|
|
833 lis
|
|
|
834 (let ((las lis)
|
|
|
835 (prev lis))
|
|
|
836 (while (consp (cdr las))
|
|
|
837 (setq prev las
|
|
|
838 las (cdr las)))
|
|
|
839 (setcdr prev nil)
|
|
|
840 (cons (car las) lis))
|
|
|
841 ))
|
|
|
842
|
|
|
843
|
|
|
844 (defun iswitchb-completion-help ()
|
|
|
845 "Show possible completions in a *Buffer Completions* buffer."
|
|
|
846 ;; we could allow this buffer to be used to select match, but I think
|
|
|
847 ;; choose-completion-string will need redefining, so it just inserts
|
|
|
848 ;; choice with out any previous input.
|
|
|
849 (interactive)
|
|
|
850 (setq iswitchb-rescan nil)
|
|
|
851 (let ((completion-setup-hook nil) ;disable fancy highlight/selection.
|
|
|
852 )
|
|
|
853 (with-output-to-temp-buffer "*Buffer Completions*"
|
|
|
854 (if iswitchb-xemacs
|
|
|
855
|
|
|
856 ;; XEmacs extents are put on by default, doesn't seem to be
|
|
|
857 ;; any way of switching them off.
|
|
|
858 (display-completion-list (if iswitchb-matches
|
|
|
859 iswitchb-matches
|
|
|
860 iswitchb-buflist)
|
|
|
861 :help-string "iswitchb "
|
|
|
862 :activate-callback
|
|
|
863 '(lambda (x y z)
|
|
|
864 (message "doesnt work yet, sorry!")))
|
|
|
865 ;; else running Emacs
|
|
|
866 (display-completion-list (if iswitchb-matches
|
|
|
867 iswitchb-matches
|
|
|
868 iswitchb-buflist))
|
|
|
869 ))))
|
|
|
870
|
|
|
871
|
|
|
872 ;;; KILL CURRENT BUFFER
|
|
|
873
|
|
|
874 (defun iswitchb-kill-buffer ()
|
|
|
875 "Kill the buffer at the head of `iswtichb-matches'."
|
|
|
876 (interactive)
|
|
|
877 (let ( (enable-recursive-minibuffers t)
|
|
|
878 buf)
|
|
|
879
|
|
|
880 (setq buf (car iswitchb-matches))
|
|
|
881 ;; check to see if buf is non-nil.
|
|
|
882 (if buf
|
|
|
883 (progn
|
|
|
884 (kill-buffer buf)
|
|
|
885
|
|
|
886 ;; Check if buffer exists. XEmacs gnuserv.el makes alias
|
|
|
887 ;; for kill-buffer which does not return t if buffer is
|
|
|
888 ;; killed, so we can't rely on kill-buffer return value.
|
|
|
889 (if (get-buffer buf)
|
|
|
890 ;; buffer couldn't be killed.
|
|
|
891 (setq iswitchb-rescan t)
|
|
|
892 ;; else buffer was killed so remove name from list.
|
|
|
893 (setq iswitchb-buflist (delq buf iswitchb-buflist)))))))
|
|
|
894
|
|
|
895
|
|
|
896 ;;; VISIT CHOSEN BUFFER
|
|
|
897 (defun iswitchb-visit-buffer (buffer)
|
|
|
898 "Visit buffer named BUFFER according to `iswitchb-method'."
|
|
|
899 (let* (win newframe)
|
|
|
900 (cond
|
|
|
901 ((eq iswitchb-method 'samewindow)
|
|
|
902 (switch-to-buffer buffer))
|
|
|
903
|
|
|
904 ((memq iswitchb-method '(always-frame maybe-frame))
|
|
|
905 (cond
|
|
|
906 ((and (setq win (iswitchb-window-buffer-p buffer))
|
|
|
907 (or (eq iswitchb-method 'always-frame)
|
|
|
908 (y-or-n-p "Jump to frame? ")))
|
|
|
909 (setq newframe (window-frame win))
|
|
|
910 (raise-frame newframe)
|
|
|
911 (select-frame newframe)
|
|
|
912 (select-window win)
|
|
|
913 (if (not iswitchb-xemacs)
|
|
|
914 ;; reposition mouse to make frame active. not needed in XEmacs
|
|
|
915 ;; This line came from the other-frame defun in Emacs.
|
|
|
916 (set-mouse-position (selected-frame) (1- (frame-width)) 0))
|
|
|
917 )
|
|
|
918 (t
|
|
|
919 ;; No buffer in other frames...
|
|
|
920 (switch-to-buffer buffer)
|
|
|
921 )))
|
|
|
922
|
|
|
923
|
|
|
924
|
|
|
925 ((eq iswitchb-method 'otherwindow)
|
|
|
926 (switch-to-buffer-other-window buffer))
|
|
|
927
|
|
|
928 ((eq iswitchb-method 'display)
|
|
|
929 (display-buffer buffer))
|
|
|
930
|
|
|
931 ((eq iswitchb-method 'otherframe)
|
|
|
932 (progn
|
|
|
933 (switch-to-buffer-other-frame buffer)
|
|
|
934 (if (not iswitchb-xemacs)
|
|
|
935 (set-mouse-position (selected-frame) (1- (frame-width)) 0))
|
|
|
936 )
|
|
|
937 ) )))
|
|
|
938
|
|
|
939 (defun iswitchb-possible-new-buffer (buf)
|
|
|
940 "Possibly create and visit a new buffer called BUF."
|
|
|
941
|
|
|
942 (let ((newbufcreated))
|
|
|
943 (if (and iswitchb-newbuffer
|
|
|
944 (or
|
|
|
945 (not iswitchb-prompt-newbuffer)
|
|
|
946
|
|
|
947 (and iswitchb-prompt-newbuffer
|
|
|
948 (y-or-n-p
|
|
|
949 (format
|
|
|
950 "No buffer matching `%s', create one? "
|
|
|
951 buf)))))
|
|
|
952 ;; then create a new buffer
|
|
|
953 (progn
|
|
|
954 (setq newbufcreated (get-buffer-create buf))
|
|
|
955 (if (fboundp 'set-buffer-major-mode)
|
|
|
956 (set-buffer-major-mode newbufcreated))
|
|
|
957 (iswitchb-visit-buffer newbufcreated))
|
|
|
958
|
|
|
959 ;; else wont create new buffer
|
|
|
960 (message (format "no buffer matching `%s'" buf))
|
|
|
961 )))
|
|
|
962
|
|
|
963 (defun iswitchb-window-buffer-p (buffer)
|
|
|
964 "Return window pointer if BUFFER is visible in another frame.
|
|
|
965 If BUFFER is visible in the current frame, return nil."
|
|
|
966 (interactive)
|
|
|
967 (let ((blist (iswitchb-get-buffers-in-frames 'current)))
|
|
|
968 ;;If the buffer is visible in current frame, return nil
|
|
|
969 (if (memq buffer blist)
|
|
|
970 nil
|
|
|
971 ;; maybe in other frame...
|
|
|
972 (get-buffer-window buffer 'visible)
|
|
|
973 )))
|
|
|
974
|
|
|
975 ;;;###autoload
|
|
|
976 (defun iswitchb-default-keybindings ()
|
|
|
977 "Set up default keybindings for `iswitchb-buffer'.
|
|
|
978 Call this function to override the normal bindings."
|
|
|
979 (interactive)
|
|
|
980 (global-set-key (read-kbd-macro "C-x b") 'iswitchb-buffer)
|
|
|
981 (global-set-key (read-kbd-macro "C-x 4 b") 'iswitchb-buffer-other-window)
|
|
|
982 (global-set-key (read-kbd-macro "C-x 4 C-o") 'iswitchb-display-buffer)
|
|
|
983 (global-set-key (read-kbd-macro "C-x 5 b") 'iswitchb-buffer-other-frame))
|
|
|
984
|
|
|
985
|
|
|
986
|
|
|
987 ;;;###autoload
|
|
|
988 (defun iswitchb-buffer ()
|
|
|
989 "Switch to another buffer.
|
|
|
990
|
|
|
991 The buffer name is selected interactively by typing a substring. The
|
|
|
992 buffer is displayed according to `iswitchb-default-method' -- the
|
|
|
993 default is to show it in the same window, unless it is already visible
|
|
|
994 in another frame.
|
|
|
995 For details of keybindings, do `\\[describe-function] iswitchb'."
|
|
|
996 (interactive)
|
|
|
997 (setq iswitchb-method iswitchb-default-method)
|
|
|
998 (iswitchb-entry))
|
|
|
999
|
|
|
1000
|
|
|
1001 ;;;###autoload
|
|
|
1002 (defun iswitchb-buffer-other-window ()
|
|
|
1003 "Switch to another buffer and show it in another window.
|
|
|
1004 The buffer name is selected interactively by typing a substring.
|
|
|
1005 For details of keybindings, do `\\[describe-function] iswitchb'."
|
|
|
1006 (interactive)
|
|
|
1007 (setq iswitchb-method 'otherwindow)
|
|
|
1008 (iswitchb-entry))
|
|
|
1009
|
|
|
1010
|
|
|
1011
|
|
|
1012 ;;;###autoload
|
|
|
1013 (defun iswitchb-display-buffer ()
|
|
|
1014 "Display a buffer in another window but don't select it.
|
|
|
1015 The buffer name is selected interactively by typing a substring.
|
|
|
1016 For details of keybindings, do `\\[describe-function] iswitchb'."
|
|
|
1017 (interactive)
|
|
|
1018 (setq iswitchb-method 'display)
|
|
|
1019 (iswitchb-entry))
|
|
|
1020
|
|
|
1021
|
|
|
1022
|
|
|
1023 ;;;###autoload
|
|
|
1024 (defun iswitchb-buffer-other-frame ()
|
|
|
1025 "Switch to another buffer and show it in another frame.
|
|
|
1026 The buffer name is selected interactively by typing a substring.
|
|
|
1027 For details of keybindings, do `\\[describe-function] iswitchb'."
|
|
|
1028 (interactive)
|
|
|
1029 (setq iswitchb-method 'otherframe)
|
|
|
1030 (iswitchb-entry))
|
|
|
1031
|
|
|
1032
|
|
|
1033
|
|
|
1034 (defun iswitchb-entry ()
|
|
|
1035 "Simply fall into `iswitchb' -- the main function."
|
|
|
1036 (iswitchb))
|
|
|
1037
|
|
|
1038
|
|
|
1039
|
|
|
1040
|
|
|
1041
|
|
|
1042 ;;; XEmacs hack for showing default buffer
|
|
|
1043
|
|
|
1044 ;; The first time we enter the minibuffer, Emacs puts up the default
|
|
|
1045 ;; buffer to switch to, but XEmacs doesnt -- presumably there is a
|
|
|
1046 ;; subtle difference in the two versions of post-command-hook. The
|
|
|
1047 ;; default is shown for both whenever we delete all of our text
|
|
|
1048 ;; though, indicating its just a problem the first time we enter the
|
|
|
1049 ;; function. To solve this, we use another entry hook for emacs to
|
|
|
1050 ;; show the default the first time we enter the minibuffer.
|
|
|
1051
|
|
203
|
1052 (defun iswitchb-init-XEmacs-trick ()
|
|
195
|
1053 "Display default buffer when first entering minibuffer.
|
|
|
1054 This is a hack for XEmacs, and should really be handled by `iswitchb-exhibit'."
|
|
|
1055 (if (iswitchb-entryfn-p)
|
|
|
1056 (progn
|
|
|
1057 (iswitchb-exhibit)
|
|
|
1058 (goto-char (point-min)))))
|
|
|
1059
|
|
|
1060
|
|
|
1061 ;; add this hook for XEmacs only.
|
|
|
1062 (if iswitchb-xemacs
|
|
|
1063 (add-hook 'iswitchb-minibuffer-setup-hook
|
|
203
|
1064 'iswitchb-init-XEmacs-trick))
|
|
195
|
1065
|
|
|
1066
|
|
|
1067 ;;; XEmacs / backspace key
|
|
|
1068 ;; For some reason, if the backspace key is pressed in xemacs, the
|
|
|
1069 ;; line gets confused, so I've added a simple key definition to make
|
|
|
1070 ;; backspace act like the normal delete key.
|
|
|
1071
|
|
|
1072 (defun iswitchb-xemacs-backspacekey ()
|
|
|
1073 "Bind backspace to `backward-delete-char'."
|
|
|
1074 (define-key iswitchb-mode-map '[backspace] 'backward-delete-char)
|
|
|
1075 (define-key iswitchb-mode-map '[(meta backspace)] 'backward-kill-word)
|
|
|
1076 )
|
|
|
1077
|
|
|
1078
|
|
|
1079 (if iswitchb-xemacs
|
|
|
1080 (add-hook 'iswitchb-define-mode-map-hook
|
|
|
1081 'iswitchb-xemacs-backspacekey))
|
|
|
1082
|
|
|
1083
|
|
|
1084
|
|
|
1085 ;;; ICOMPLETE TYPE CODE
|
|
|
1086
|
|
|
1087 (defun iswitchb-exhibit ()
|
|
|
1088 "Find matching buffers and display a list in the minibuffer.
|
|
|
1089 Copied from `icomplete-exhibit' with two changes:
|
|
|
1090 1. It prints a default buffer name when there is no text yet entered.
|
|
|
1091 2. It calls my completion routine rather than the standard completion."
|
|
|
1092
|
|
|
1093 (if iswitchb-use-mycompletion
|
|
|
1094 (let ((contents (buffer-substring (point-min)(point-max)))
|
|
|
1095 (buffer-undo-list t))
|
|
|
1096 (save-excursion
|
|
|
1097 (goto-char (point-max))
|
|
|
1098 ; Register the end of input, so we
|
|
|
1099 ; know where the extra stuff
|
|
|
1100 ; (match-status info) begins:
|
|
|
1101 (if (not (boundp 'iswitchb-eoinput))
|
|
|
1102 ;; In case it got wiped out by major mode business:
|
|
|
1103 (make-local-variable 'iswitchb-eoinput))
|
|
|
1104 (setq iswitchb-eoinput (point))
|
|
|
1105 ;; Update the list of matches
|
|
|
1106 (setq iswitchb-text contents)
|
|
|
1107 (iswitchb-set-matches)
|
|
|
1108 (setq iswitchb-rescan t)
|
|
|
1109 (iswitchb-set-common-completion)
|
|
|
1110
|
|
|
1111 ;; Insert the match-status information:
|
|
|
1112 (insert-string
|
|
|
1113 (iswitchb-completions
|
|
|
1114 contents
|
|
|
1115 minibuffer-completion-table
|
|
|
1116 minibuffer-completion-predicate
|
|
|
1117 (not minibuffer-completion-confirm)))
|
|
|
1118 ))))
|
|
|
1119
|
|
|
1120
|
|
|
1121
|
|
|
1122 (defun iswitchb-completions
|
|
|
1123 (name candidates predicate require-match)
|
|
|
1124 "Return the string that is displayed after the user's text.
|
|
|
1125 Modified from `icomplete-completions'."
|
|
|
1126
|
|
|
1127 (let ((comps iswitchb-matches)
|
|
|
1128 ; "-determined" - only one candidate
|
|
|
1129 (open-bracket-determined (if require-match "(" "["))
|
|
|
1130 (close-bracket-determined (if require-match ")" "]"))
|
|
|
1131 ;"-prospects" - more than one candidate
|
|
|
1132 (open-bracket-prospects "{")
|
|
|
1133 (close-bracket-prospects "}")
|
|
|
1134 first
|
|
|
1135 )
|
|
|
1136
|
|
|
1137 (if (and iswitchb-use-fonts comps)
|
|
|
1138 (progn
|
|
|
1139 (setq first (car comps))
|
|
|
1140 (setq first (format "%s" first))
|
|
|
1141 (put-text-property 0 (length first) 'face
|
|
|
1142 (if (eq (length comps) 1)
|
|
|
1143 'font-lock-comment-face
|
|
|
1144 'font-lock-function-name-face)
|
|
|
1145 first)
|
|
|
1146 (setq comps (cons first (cdr comps)))
|
|
|
1147 ))
|
|
|
1148
|
|
|
1149 (cond ((null comps) (format " %sNo match%s"
|
|
|
1150 open-bracket-determined
|
|
|
1151 close-bracket-determined))
|
|
|
1152
|
|
|
1153 ((null (cdr comps)) ;one match
|
|
|
1154 (concat (if (and (> (length (car comps))
|
|
|
1155 (length name)))
|
|
|
1156 (concat open-bracket-determined
|
|
|
1157 ;; when there is one match, show the
|
|
|
1158 ;; matching buffer name in full
|
|
|
1159 (car comps)
|
|
|
1160 close-bracket-determined)
|
|
|
1161 "")
|
|
|
1162 (if (not iswitchb-use-fonts) " [Matched]")
|
|
|
1163 ))
|
|
|
1164 (t ;multiple matches
|
|
|
1165 (let* (
|
|
|
1166 ;;(most (try-completion name candidates predicate))
|
|
|
1167 (most nil)
|
|
|
1168 (most-len (length most))
|
|
|
1169 most-is-exact
|
|
|
1170 first
|
|
|
1171 (alternatives
|
|
|
1172 (apply
|
|
|
1173 (function concat)
|
|
|
1174 (cdr (apply
|
|
|
1175 (function nconc)
|
|
|
1176 (mapcar '(lambda (com)
|
|
|
1177 (if (= (length com) most-len)
|
|
|
1178 ;; Most is one exact match,
|
|
|
1179 ;; note that and leave out
|
|
|
1180 ;; for later indication:
|
|
|
1181 (progn
|
|
|
1182 (setq most-is-exact t)
|
|
|
1183 ())
|
|
|
1184 (list ","
|
|
|
1185 (substring com
|
|
|
1186 most-len))))
|
|
|
1187 comps))))))
|
|
|
1188
|
|
|
1189 (concat
|
|
|
1190
|
|
|
1191 ;; put in common completion item -- what you get by
|
|
|
1192 ;; pressing tab
|
|
|
1193 (if (> (length iswitchb-common-match-string) (length name))
|
|
|
1194 (concat open-bracket-determined
|
|
|
1195 (substring iswitchb-common-match-string
|
|
|
1196 (length name))
|
|
|
1197 close-bracket-determined)
|
|
|
1198 )
|
|
|
1199 ;; end of partial matches...
|
|
|
1200
|
|
|
1201 ;; think this bit can be ignored.
|
|
|
1202 (and (> most-len (length name))
|
|
|
1203 (concat open-bracket-determined
|
|
|
1204 (substring most (length name))
|
|
|
1205 close-bracket-determined))
|
|
|
1206
|
|
|
1207 ;; list all alternatives
|
|
|
1208 open-bracket-prospects
|
|
|
1209 (if most-is-exact
|
|
|
1210 (concat "," alternatives)
|
|
|
1211 alternatives)
|
|
|
1212 close-bracket-prospects)))
|
|
|
1213 )))
|
|
|
1214
|
|
|
1215 (defun iswitchb-minibuffer-setup ()
|
|
|
1216 "Set up minibuffer for `iswitchb-buffer'.
|
|
|
1217 Copied from `icomplete-minibuffer-setup-hook'."
|
|
|
1218 (if (iswitchb-entryfn-p)
|
|
|
1219 (progn
|
|
|
1220
|
|
|
1221 (make-local-variable 'iswitchb-use-mycompletion)
|
|
|
1222 (setq iswitchb-use-mycompletion t)
|
|
|
1223 (make-local-hook 'pre-command-hook)
|
|
|
1224 (add-hook 'pre-command-hook
|
|
|
1225 'iswitchb-pre-command
|
|
|
1226 nil t)
|
|
|
1227 (make-local-hook 'post-command-hook)
|
|
|
1228 (add-hook 'post-command-hook
|
|
|
1229 'iswitchb-post-command
|
|
|
1230 nil t)
|
|
|
1231
|
|
|
1232 (run-hooks 'iswitchb-minibuffer-setup-hook)
|
|
|
1233 )
|
|
|
1234 ))
|
|
|
1235
|
|
|
1236
|
|
|
1237 (defun iswitchb-pre-command ()
|
|
|
1238 "Run before command in `iswitchb-buffer'."
|
|
|
1239 (iswitchb-tidy))
|
|
|
1240
|
|
|
1241
|
|
|
1242 (defun iswitchb-post-command ()
|
|
|
1243 "Run after command in `iswitchb-buffer'."
|
|
|
1244 (iswitchb-exhibit)
|
|
|
1245 )
|
|
|
1246
|
|
|
1247
|
|
|
1248
|
|
|
1249 (defun iswitchb-tidy ()
|
|
|
1250 "Remove completions display, if any, prior to new user input.
|
|
|
1251 Copied from `icomplete-tidy'."
|
|
|
1252
|
|
|
1253 (if (and (boundp 'iswitchb-eoinput)
|
|
|
1254 iswitchb-eoinput)
|
|
|
1255
|
|
|
1256 (if (> iswitchb-eoinput (point-max))
|
|
|
1257 ;; Oops, got rug pulled out from under us - reinit:
|
|
|
1258 (setq iswitchb-eoinput (point-max))
|
|
|
1259 (let ((buffer-undo-list buffer-undo-list )) ; prevent entry
|
|
|
1260 (delete-region iswitchb-eoinput (point-max))))
|
|
|
1261
|
|
|
1262 ;; Reestablish the local variable 'cause minibuffer-setup is weird:
|
|
|
1263 (make-local-variable 'iswitchb-eoinput)
|
|
|
1264 (setq iswitchb-eoinput 1)))
|
|
|
1265
|
|
|
1266
|
|
|
1267 (defun iswitchb-entryfn-p ()
|
|
|
1268 "Return non-nil if `this-command' shows we are using `iswitchb-buffer'."
|
|
|
1269 (and (symbolp this-command) ; ignore lambda functions
|
|
|
1270 (memq this-command
|
|
|
1271 '(iswitchb-buffer
|
|
|
1272 iswitchb-buffer-other-frame
|
|
|
1273 iswitchb-display-buffer
|
|
|
1274 iswitchb-buffer-other-window))))
|
|
|
1275
|
|
|
1276
|
|
|
1277
|
|
|
1278
|
|
|
1279 (defun iswitchb-summaries-to-end ()
|
|
|
1280 "Move the summaries to the end of the list.
|
|
|
1281 This is an example function which can be hooked on to
|
|
|
1282 `iswitchb-make-buflist-hook'. Any buffer matching the regexps
|
|
|
1283 `Summary' or `output\*$'are put to the end of the list."
|
|
|
1284 (let ((summaries (delq nil (mapcar
|
|
|
1285 (lambda (x)
|
|
|
1286 (if (or
|
|
|
1287 (string-match "Summary" x)
|
|
|
1288 (string-match "output\\*$" x))
|
|
|
1289 x))
|
|
|
1290 buflist)
|
|
|
1291 )))
|
|
|
1292
|
|
|
1293 (iswitchb-to-end summaries)))
|
|
|
1294
|
|
|
1295
|
|
|
1296
|
|
|
1297 ;;; HOOKS
|
|
|
1298 (add-hook 'minibuffer-setup-hook 'iswitchb-minibuffer-setup)
|
|
|
1299
|
|
|
1300 (provide 'iswitchb)
|
|
|
1301
|
|
|
1302 ;;; iswitchb.el ends here
|
