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428
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1 /* Minibuffer input and completion.
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2 Copyright (C) 1985, 1986, 1992-1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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793
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4 Copyright (C) 2002 Ben Wing.
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428
|
5
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|
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6 This file is part of XEmacs.
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|
7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Mule 2.0, FSF 19.28. Mule-ized except as noted.
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24 Substantially different from FSF. */
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25
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26 /* #### dmoore - All sorts of things in here can call lisp, like message.
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27 Track all this stuff. */
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28
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29 #include <config.h>
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30 #include "lisp.h"
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31
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32 #include "buffer.h"
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33 #include "commands.h"
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34 #include "console-stream.h"
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35 #include "events.h"
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872
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36 #include "frame-impl.h"
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428
|
37 #include "insdel.h"
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38 #include "redisplay.h"
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872
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39 #include "window-impl.h"
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428
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40
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41 /* Depth in minibuffer invocations. */
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42 int minibuf_level;
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43
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44 Lisp_Object Qcompletion_ignore_case;
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45
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46 /* Nonzero means completion ignores case. */
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47 int completion_ignore_case;
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48
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49 /* List of regexps that should restrict possible completions. */
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50 Lisp_Object Vcompletion_regexp_list;
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51
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52 /* The echo area buffer. */
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53 Lisp_Object Vecho_area_buffer;
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54
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55 /* Prompt to display in front of the minibuffer contents */
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56 Lisp_Object Vminibuf_prompt;
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57
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58 /* Added on 97/3/14 by Jareth Hein (jhod@po.iijnet.or.jp) for input system support */
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59 /* String to be displayed in front of prompt of the minibuffer contents */
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60 Lisp_Object Vminibuf_preprompt;
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61
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62 /* Hook to run just after entry to minibuffer. */
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63 Lisp_Object Qminibuffer_setup_hook, Vminibuffer_setup_hook;
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64
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65 Lisp_Object Qappend_message, Qcurrent_message_label,
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66 Qclear_message, Qdisplay_message;
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67
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68
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69 DEFUN ("minibuffer-depth", Fminibuffer_depth, 0, 0, 0, /*
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70 Return current depth of activations of minibuffer, a nonnegative integer.
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71 */
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72 ())
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73 {
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74 return make_int (minibuf_level);
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75 }
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76
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77 /* The default buffer to use as the window-buffer of minibuffer windows */
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78 /* Note there is special code in kill-buffer to make this unkillable */
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79 Lisp_Object Vminibuffer_zero;
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80
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81
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82 /* Actual minibuffer invocation. */
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83
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84 static Lisp_Object
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85 read_minibuffer_internal_unwind (Lisp_Object unwind_data)
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86 {
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87 Lisp_Object frame;
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88 XWINDOW (minibuf_window)->last_modified[CURRENT_DISP] = Qzero;
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89 XWINDOW (minibuf_window)->last_modified[DESIRED_DISP] = Qzero;
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90 XWINDOW (minibuf_window)->last_modified[CMOTION_DISP] = Qzero;
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91 XWINDOW (minibuf_window)->last_facechange[CURRENT_DISP] = Qzero;
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92 XWINDOW (minibuf_window)->last_facechange[DESIRED_DISP] = Qzero;
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93 XWINDOW (minibuf_window)->last_facechange[CMOTION_DISP] = Qzero;
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94 Vminibuf_prompt = Felt (unwind_data, Qzero);
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95 minibuf_level = XINT (Felt (unwind_data, make_int (1)));
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96 while (CONSP (unwind_data))
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97 {
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98 Lisp_Object victim = unwind_data;
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99 unwind_data = XCDR (unwind_data);
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|
853
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100 free_cons (victim);
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428
|
101 }
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102
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103 /* If cursor is on the minibuffer line,
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104 show the user we have exited by putting it in column 0. */
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105 frame = Fselected_frame (Qnil);
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106 if (!noninteractive
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107 && !NILP (frame)
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108 && !NILP (XFRAME (frame)->minibuffer_window))
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109 {
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110 struct window *w = XWINDOW (XFRAME (frame)->minibuffer_window);
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111 redisplay_move_cursor (w, 0, 0);
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112 }
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113
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114 return Qnil;
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115 }
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116
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117 /* 97/4/13 jhod: Added for input methods */
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118 DEFUN ("set-minibuffer-preprompt", Fset_minibuffer_preprompt, 1, 1, 0, /*
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119 Set the minibuffer preprompt string to PREPROMPT. This is used by language
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120 input methods to relay state information to the user.
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121 */
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122 (preprompt))
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123 {
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124 if (NILP (preprompt))
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125 {
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126 Vminibuf_preprompt = Qnil;
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127 }
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128 else
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129 {
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130 CHECK_STRING (preprompt);
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131
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132 Vminibuf_preprompt = LISP_GETTEXT (preprompt);
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133 }
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134 return Qnil;
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135 }
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136
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2268
|
137 DEFUN_NORETURN ("read-minibuffer-internal", Fread_minibuffer_internal,
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138 1, 1, 0, /*
|
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428
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139 Lowest-level interface to minibuffers. Don't call this.
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140 */
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141 (prompt))
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142 {
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143 /* This function can GC */
|
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2268
|
144
|
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145 /* We used to record the specpdl_depth here, but since call_command_loop
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146 never returns, we can never call unbind_to_1. Since we exit via a throw,
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147 we let whoever catches unbind for us. */
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|
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148
|
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428
|
149 CHECK_STRING (prompt);
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150
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151 single_console_state ();
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152
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153 record_unwind_protect (read_minibuffer_internal_unwind,
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154 noseeum_cons
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155 (Vminibuf_prompt,
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156 noseeum_cons (make_int (minibuf_level), Qnil)));
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157 Vminibuf_prompt = LISP_GETTEXT (prompt);
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158
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159 /* NOTE: Here (or somewhere around here), in FSFmacs 19.30,
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160 choose_minibuf_frame() is called. This is the only
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161 place in FSFmacs that it's called any more -- there's
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162 also a call in xterm.c, but commented out, and 19.28
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163 had the calls in different places.
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164
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165 choose_minibuf_frame() does the following:
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166
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167 if (!EQ (minibuf_window, selected_frame()->minibuffer_window))
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168 {
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169 Fset_window_buffer (selected_frame()->minibuffer_window,
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170 XWINDOW (minibuf_window)->buffer);
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171 minibuf_window = selected_frame()->minibuffer_window;
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172 }
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173
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174 #### Note that we don't do the set-window-buffer. This call is
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175 similar, but not identical, to a set-window-buffer call made
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176 in `read-from-minibuffer' in minibuf.el. I hope it's close
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177 enough, because minibuf_window isn't really exported to Lisp.
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178
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179 The comment above choose_minibuf_frame() reads:
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180
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181 Put minibuf on currently selected frame's minibuffer.
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182 We do this whenever the user starts a new minibuffer
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183 or when a minibuffer exits. */
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184
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185 minibuf_window = FRAME_MINIBUF_WINDOW (selected_frame ());
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186
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|
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187 run_hook (Qminibuffer_setup_hook);
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188
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189 minibuf_level++;
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190 clear_echo_area (selected_frame (), Qnil, 0);
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191
|
|
2286
|
192 call_command_loop (Qt);
|
|
428
|
193
|
|
2286
|
194 RETURN_NOT_REACHED (Qnil);
|
|
428
|
195 }
|
|
|
196
|
|
|
197
|
|
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198
|
|
|
199 /* Completion hair */
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200
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201 /* Compare exactly LEN chars of strings at S1 and S2,
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202 ignoring case if appropriate.
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|
203 Return -1 if strings match,
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204 else number of chars that match at the beginning. */
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205
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|
|
206 /* Note that this function works in Charcounts, unlike most functions.
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|
207 This is necessary for many reasons, one of which is that two
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|
|
208 strings may match even if they have different numbers of bytes,
|
|
|
209 if IGNORE_CASE is true. */
|
|
|
210
|
|
|
211 Charcount
|
|
867
|
212 scmp_1 (const Ibyte *s1, const Ibyte *s2, Charcount len,
|
|
428
|
213 int ignore_case)
|
|
|
214 {
|
|
|
215 Charcount l = len;
|
|
|
216
|
|
|
217 if (ignore_case)
|
|
|
218 {
|
|
|
219 while (l)
|
|
|
220 {
|
|
867
|
221 Ichar c1 = DOWNCASE (0, itext_ichar (s1));
|
|
|
222 Ichar c2 = DOWNCASE (0, itext_ichar (s2));
|
|
428
|
223
|
|
|
224 if (c1 == c2)
|
|
|
225 {
|
|
|
226 l--;
|
|
867
|
227 INC_IBYTEPTR (s1);
|
|
|
228 INC_IBYTEPTR (s2);
|
|
428
|
229 }
|
|
|
230 else
|
|
|
231 break;
|
|
|
232 }
|
|
|
233 }
|
|
|
234 else
|
|
|
235 {
|
|
867
|
236 while (l && itext_ichar (s1) == itext_ichar (s2))
|
|
428
|
237 {
|
|
|
238 l--;
|
|
867
|
239 INC_IBYTEPTR (s1);
|
|
|
240 INC_IBYTEPTR (s2);
|
|
428
|
241 }
|
|
|
242 }
|
|
|
243
|
|
|
244 if (l == 0)
|
|
|
245 return -1;
|
|
|
246 else return len - l;
|
|
|
247 }
|
|
|
248
|
|
|
249
|
|
|
250 int
|
|
867
|
251 regexp_ignore_completion_p (const Ibyte *nonreloc,
|
|
428
|
252 Lisp_Object reloc, Bytecount offset,
|
|
|
253 Bytecount length)
|
|
|
254 {
|
|
|
255 /* Ignore this element if it fails to match all the regexps. */
|
|
|
256 if (!NILP (Vcompletion_regexp_list))
|
|
|
257 {
|
|
|
258 Lisp_Object regexps;
|
|
|
259 EXTERNAL_LIST_LOOP (regexps, Vcompletion_regexp_list)
|
|
|
260 {
|
|
|
261 Lisp_Object re = XCAR (regexps);
|
|
|
262 CHECK_STRING (re);
|
|
|
263 if (fast_string_match (re, nonreloc, reloc, offset,
|
|
|
264 length, 0, ERROR_ME, 0) < 0)
|
|
|
265 return 1;
|
|
|
266 }
|
|
|
267 }
|
|
|
268 return 0;
|
|
|
269 }
|
|
|
270
|
|
|
271
|
|
|
272 /* Callers should GCPRO, since this may call eval */
|
|
|
273 static int
|
|
|
274 ignore_completion_p (Lisp_Object completion_string,
|
|
|
275 Lisp_Object pred, Lisp_Object completion)
|
|
|
276 {
|
|
|
277 if (regexp_ignore_completion_p (0, completion_string, 0, -1))
|
|
|
278 return 1;
|
|
|
279
|
|
|
280 /* Ignore this element if there is a predicate
|
|
|
281 and the predicate doesn't like it. */
|
|
|
282 if (!NILP (pred))
|
|
|
283 {
|
|
|
284 Lisp_Object tem;
|
|
|
285 if (EQ (pred, Qcommandp))
|
|
|
286 tem = Fcommandp (completion);
|
|
|
287 else
|
|
|
288 tem = call1 (pred, completion);
|
|
|
289 if (NILP (tem))
|
|
|
290 return 1;
|
|
|
291 }
|
|
|
292 return 0;
|
|
|
293 }
|
|
|
294
|
|
|
295
|
|
444
|
296 /* #### Maybe we should allow COLLECTION to be a hash table.
|
|
|
297 It is wrong for the use of obarrays to be better-rewarded than the
|
|
|
298 use of hash tables. By better-rewarded I mean that you can pass an
|
|
|
299 obarray to all of the completion functions, whereas you can't do
|
|
|
300 anything like that with a hash table.
|
|
428
|
301
|
|
|
302 To do so, there should probably be a
|
|
|
303 map_obarray_or_alist_or_hash_table function which would be used by
|
|
826
|
304 both Ftry_completion and Fall_completions. [[ But would the
|
|
|
305 additional funcalls slow things down? ]] Seriously doubtful. --ben */
|
|
428
|
306
|
|
|
307 DEFUN ("try-completion", Ftry_completion, 2, 3, 0, /*
|
|
444
|
308 Return common substring of all completions of STRING in COLLECTION.
|
|
|
309 COLLECTION must be an alist, an obarray, or a function.
|
|
|
310 Each string in COLLECTION is tested to see if it begins with STRING.
|
|
428
|
311 All that match are compared together; the longest initial sequence
|
|
444
|
312 common to all matches is returned as a string. If there is no match
|
|
|
313 at all, nil is returned. For an exact match, t is returned.
|
|
428
|
314
|
|
444
|
315 If COLLECTION is an alist, the cars of the elements of the alist
|
|
|
316 \(which must be strings) form the set of possible completions.
|
|
428
|
317
|
|
444
|
318 If COLLECTION is an obarray, the names of all symbols in the obarray
|
|
|
319 are the possible completions.
|
|
|
320
|
|
|
321 If COLLECTION is a function, it is called with three arguments: the
|
|
|
322 values STRING, PREDICATE and nil. Whatever it returns becomes the
|
|
|
323 value of `try-completion'.
|
|
428
|
324
|
|
444
|
325 If optional third argument PREDICATE is non-nil, it is used to test
|
|
|
326 each possible match. The match is a candidate only if PREDICATE
|
|
|
327 returns non-nil. The argument given to PREDICATE is the alist element
|
|
|
328 or the symbol from the obarray.
|
|
428
|
329 */
|
|
444
|
330 (string, collection, predicate))
|
|
428
|
331 {
|
|
|
332 /* This function can GC */
|
|
|
333 Lisp_Object bestmatch, tail;
|
|
|
334 Charcount bestmatchsize = 0;
|
|
|
335 int list;
|
|
|
336 int indice = 0;
|
|
|
337 int matchcount = 0;
|
|
|
338 int obsize;
|
|
|
339 Lisp_Object bucket;
|
|
|
340 Charcount slength, blength;
|
|
|
341
|
|
|
342 CHECK_STRING (string);
|
|
|
343
|
|
444
|
344 if (CONSP (collection))
|
|
428
|
345 {
|
|
444
|
346 Lisp_Object tem = XCAR (collection);
|
|
428
|
347 if (SYMBOLP (tem)) /* lambda, autoload, etc. Emacs-lisp sucks */
|
|
444
|
348 return call3 (collection, string, predicate, Qnil);
|
|
428
|
349 else
|
|
|
350 list = 1;
|
|
|
351 }
|
|
444
|
352 else if (VECTORP (collection))
|
|
428
|
353 list = 0;
|
|
444
|
354 else if (NILP (collection))
|
|
428
|
355 list = 1;
|
|
|
356 else
|
|
444
|
357 return call3 (collection, string, predicate, Qnil);
|
|
428
|
358
|
|
|
359 bestmatch = Qnil;
|
|
|
360 blength = 0;
|
|
826
|
361 slength = string_char_length (string);
|
|
428
|
362
|
|
444
|
363 /* If COLLECTION is not a list, set TAIL just for gc pro. */
|
|
|
364 tail = collection;
|
|
428
|
365 if (!list)
|
|
|
366 {
|
|
444
|
367 obsize = XVECTOR_LENGTH (collection);
|
|
|
368 bucket = XVECTOR_DATA (collection)[indice];
|
|
428
|
369 }
|
|
|
370 else /* warning suppression */
|
|
|
371 {
|
|
|
372 obsize = 0;
|
|
|
373 bucket = Qnil;
|
|
|
374 }
|
|
|
375
|
|
|
376 while (1)
|
|
|
377 {
|
|
|
378 /* Get the next element of the alist or obarray. */
|
|
|
379 /* Exit the loop if the elements are all used up. */
|
|
|
380 /* elt gets the alist element or symbol.
|
|
|
381 eltstring gets the name to check as a completion. */
|
|
|
382 Lisp_Object elt;
|
|
|
383 Lisp_Object eltstring;
|
|
|
384
|
|
|
385 if (list)
|
|
|
386 {
|
|
|
387 if (NILP (tail))
|
|
|
388 break;
|
|
|
389 elt = Fcar (tail);
|
|
|
390 eltstring = Fcar (elt);
|
|
|
391 tail = Fcdr (tail);
|
|
|
392 }
|
|
|
393 else
|
|
|
394 {
|
|
|
395 if (!ZEROP (bucket))
|
|
|
396 {
|
|
440
|
397 Lisp_Symbol *next;
|
|
428
|
398 if (!SYMBOLP (bucket))
|
|
|
399 {
|
|
563
|
400 invalid_argument ("Bad obarray passed to try-completions",
|
|
|
401 bucket);
|
|
428
|
402 }
|
|
|
403 next = symbol_next (XSYMBOL (bucket));
|
|
|
404 elt = bucket;
|
|
|
405 eltstring = Fsymbol_name (elt);
|
|
|
406 if (next)
|
|
793
|
407 bucket = wrap_symbol (next);
|
|
428
|
408 else
|
|
|
409 bucket = Qzero;
|
|
|
410 }
|
|
|
411 else if (++indice >= obsize)
|
|
|
412 break;
|
|
|
413 else
|
|
|
414 {
|
|
444
|
415 bucket = XVECTOR_DATA (collection)[indice];
|
|
428
|
416 continue;
|
|
|
417 }
|
|
|
418 }
|
|
|
419
|
|
|
420 /* Is this element a possible completion? */
|
|
|
421
|
|
|
422 if (STRINGP (eltstring))
|
|
|
423 {
|
|
826
|
424 Charcount eltlength = string_char_length (eltstring);
|
|
428
|
425 if (slength <= eltlength
|
|
|
426 && (0 > scmp (XSTRING_DATA (eltstring),
|
|
|
427 XSTRING_DATA (string),
|
|
|
428 slength)))
|
|
|
429 {
|
|
|
430 {
|
|
|
431 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
|
|
|
432 int loser;
|
|
|
433 GCPRO4 (tail, string, eltstring, bestmatch);
|
|
444
|
434 loser = ignore_completion_p (eltstring, predicate, elt);
|
|
428
|
435 UNGCPRO;
|
|
|
436 if (loser) /* reject this one */
|
|
|
437 continue;
|
|
|
438 }
|
|
|
439
|
|
|
440 /* Update computation of how much all possible
|
|
|
441 completions match */
|
|
|
442
|
|
|
443 matchcount++;
|
|
|
444 if (NILP (bestmatch))
|
|
|
445 {
|
|
|
446 bestmatch = eltstring;
|
|
|
447 blength = eltlength;
|
|
|
448 bestmatchsize = eltlength;
|
|
|
449 }
|
|
|
450 else
|
|
|
451 {
|
|
|
452 Charcount compare = min (bestmatchsize, eltlength);
|
|
|
453 Charcount matchsize =
|
|
|
454 scmp (XSTRING_DATA (bestmatch),
|
|
|
455 XSTRING_DATA (eltstring),
|
|
|
456 compare);
|
|
|
457 if (matchsize < 0)
|
|
|
458 matchsize = compare;
|
|
|
459 if (completion_ignore_case)
|
|
|
460 {
|
|
|
461 /* If this is an exact match except for case,
|
|
|
462 use it as the best match rather than one that is not
|
|
|
463 an exact match. This way, we get the case pattern
|
|
|
464 of the actual match. */
|
|
|
465 if ((matchsize == eltlength
|
|
|
466 && matchsize < blength)
|
|
|
467 ||
|
|
|
468 /* If there is more than one exact match ignoring
|
|
|
469 case, and one of them is exact including case,
|
|
|
470 prefer that one. */
|
|
|
471 /* If there is no exact match ignoring case,
|
|
|
472 prefer a match that does not change the case
|
|
|
473 of the input. */
|
|
|
474 ((matchsize == eltlength)
|
|
|
475 ==
|
|
|
476 (matchsize == blength)
|
|
|
477 && 0 > scmp_1 (XSTRING_DATA (eltstring),
|
|
|
478 XSTRING_DATA (string),
|
|
|
479 slength, 0)
|
|
|
480 && 0 <= scmp_1 (XSTRING_DATA (bestmatch),
|
|
|
481 XSTRING_DATA (string),
|
|
|
482 slength, 0)))
|
|
|
483 {
|
|
|
484 bestmatch = eltstring;
|
|
|
485 blength = eltlength;
|
|
|
486 }
|
|
|
487 }
|
|
|
488 bestmatchsize = matchsize;
|
|
|
489 }
|
|
|
490 }
|
|
|
491 }
|
|
|
492 }
|
|
|
493
|
|
|
494 if (NILP (bestmatch))
|
|
|
495 return Qnil; /* No completions found */
|
|
|
496 /* If we are ignoring case, and there is no exact match,
|
|
|
497 and no additional text was supplied,
|
|
|
498 don't change the case of what the user typed. */
|
|
|
499 if (completion_ignore_case
|
|
|
500 && bestmatchsize == slength
|
|
|
501 && blength > bestmatchsize)
|
|
|
502 return string;
|
|
|
503
|
|
|
504 /* Return t if the supplied string is an exact match (counting case);
|
|
|
505 it does not require any change to be made. */
|
|
|
506 if (matchcount == 1
|
|
|
507 && bestmatchsize == slength
|
|
|
508 && 0 > scmp_1 (XSTRING_DATA (bestmatch),
|
|
|
509 XSTRING_DATA (string),
|
|
|
510 bestmatchsize, 0))
|
|
|
511 return Qt;
|
|
|
512
|
|
|
513 /* Else extract the part in which all completions agree */
|
|
|
514 return Fsubstring (bestmatch, Qzero, make_int (bestmatchsize));
|
|
|
515 }
|
|
|
516
|
|
|
517
|
|
|
518 DEFUN ("all-completions", Fall_completions, 2, 3, 0, /*
|
|
444
|
519 Search for partial matches to STRING in COLLECTION.
|
|
|
520 COLLECTION must be an alist, an obarray, or a function.
|
|
|
521 Each string in COLLECTION is tested to see if it begins with STRING.
|
|
|
522 The value is a list of all the strings from COLLECTION that match.
|
|
|
523
|
|
|
524 If COLLECTION is an alist, the cars of the elements of the alist
|
|
|
525 \(which must be strings) form the set of possible completions.
|
|
|
526
|
|
|
527 If COLLECTION is an obarray, the names of all symbols in the obarray
|
|
|
528 are the possible completions.
|
|
428
|
529
|
|
444
|
530 If COLLECTION is a function, it is called with three arguments: the
|
|
|
531 values STRING, PREDICATE and t. Whatever it returns becomes the
|
|
|
532 value of `all-completions'.
|
|
428
|
533
|
|
444
|
534 If optional third argument PREDICATE is non-nil, it is used to test
|
|
|
535 each possible match. The match is a candidate only if PREDICATE
|
|
|
536 returns non-nil. The argument given to PREDICATE is the alist element
|
|
|
537 or the symbol from the obarray.
|
|
428
|
538 */
|
|
444
|
539 (string, collection, predicate))
|
|
428
|
540 {
|
|
|
541 /* This function can GC */
|
|
|
542 Lisp_Object tail;
|
|
|
543 Lisp_Object allmatches;
|
|
|
544 int list;
|
|
|
545 int indice = 0;
|
|
|
546 int obsize;
|
|
|
547 Lisp_Object bucket;
|
|
|
548 Charcount slength;
|
|
|
549
|
|
|
550 CHECK_STRING (string);
|
|
|
551
|
|
444
|
552 if (CONSP (collection))
|
|
428
|
553 {
|
|
444
|
554 Lisp_Object tem = XCAR (collection);
|
|
428
|
555 if (SYMBOLP (tem)) /* lambda, autoload, etc. Emacs-lisp sucks */
|
|
444
|
556 return call3 (collection, string, predicate, Qt);
|
|
428
|
557 else
|
|
|
558 list = 1;
|
|
|
559 }
|
|
444
|
560 else if (VECTORP (collection))
|
|
428
|
561 list = 0;
|
|
444
|
562 else if (NILP (collection))
|
|
428
|
563 list = 1;
|
|
|
564 else
|
|
444
|
565 return call3 (collection, string, predicate, Qt);
|
|
428
|
566
|
|
|
567 allmatches = Qnil;
|
|
826
|
568 slength = string_char_length (string);
|
|
428
|
569
|
|
444
|
570 /* If COLLECTION is not a list, set TAIL just for gc pro. */
|
|
|
571 tail = collection;
|
|
428
|
572 if (!list)
|
|
|
573 {
|
|
444
|
574 obsize = XVECTOR_LENGTH (collection);
|
|
|
575 bucket = XVECTOR_DATA (collection)[indice];
|
|
428
|
576 }
|
|
|
577 else /* warning suppression */
|
|
|
578 {
|
|
|
579 obsize = 0;
|
|
|
580 bucket = Qnil;
|
|
|
581 }
|
|
|
582
|
|
|
583 while (1)
|
|
|
584 {
|
|
|
585 /* Get the next element of the alist or obarray. */
|
|
|
586 /* Exit the loop if the elements are all used up. */
|
|
|
587 /* elt gets the alist element or symbol.
|
|
|
588 eltstring gets the name to check as a completion. */
|
|
|
589 Lisp_Object elt;
|
|
|
590 Lisp_Object eltstring;
|
|
|
591
|
|
|
592 if (list)
|
|
|
593 {
|
|
|
594 if (NILP (tail))
|
|
|
595 break;
|
|
|
596 elt = Fcar (tail);
|
|
|
597 eltstring = Fcar (elt);
|
|
|
598 tail = Fcdr (tail);
|
|
|
599 }
|
|
|
600 else
|
|
|
601 {
|
|
|
602 if (!ZEROP (bucket))
|
|
|
603 {
|
|
440
|
604 Lisp_Symbol *next = symbol_next (XSYMBOL (bucket));
|
|
428
|
605 elt = bucket;
|
|
|
606 eltstring = Fsymbol_name (elt);
|
|
|
607 if (next)
|
|
793
|
608 bucket = wrap_symbol (next);
|
|
428
|
609 else
|
|
|
610 bucket = Qzero;
|
|
|
611 }
|
|
|
612 else if (++indice >= obsize)
|
|
|
613 break;
|
|
|
614 else
|
|
|
615 {
|
|
444
|
616 bucket = XVECTOR_DATA (collection)[indice];
|
|
428
|
617 continue;
|
|
|
618 }
|
|
|
619 }
|
|
|
620
|
|
|
621 /* Is this element a possible completion? */
|
|
|
622
|
|
|
623 if (STRINGP (eltstring)
|
|
826
|
624 && (slength <= string_char_length (eltstring))
|
|
448
|
625 /* Reject alternatives that start with space
|
|
|
626 unless the input starts with space. */
|
|
826
|
627 && ((string_char_length (string) > 0 &&
|
|
867
|
628 string_ichar (string, 0) == ' ')
|
|
|
629 || string_ichar (eltstring, 0) != ' ')
|
|
448
|
630 && (0 > scmp (XSTRING_DATA (eltstring),
|
|
428
|
631 XSTRING_DATA (string),
|
|
|
632 slength)))
|
|
|
633 {
|
|
|
634 /* Yes. Now check whether predicate likes it. */
|
|
|
635 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
|
|
|
636 int loser;
|
|
|
637 GCPRO4 (tail, eltstring, allmatches, string);
|
|
444
|
638 loser = ignore_completion_p (eltstring, predicate, elt);
|
|
428
|
639 UNGCPRO;
|
|
|
640 if (!loser)
|
|
|
641 /* Ok => put it on the list. */
|
|
|
642 allmatches = Fcons (eltstring, allmatches);
|
|
|
643 }
|
|
|
644 }
|
|
|
645
|
|
|
646 return Fnreverse (allmatches);
|
|
|
647 }
|
|
|
648
|
|
|
649 /* Useless FSFmacs functions */
|
|
|
650 /* More than useless. I've nuked minibuf_prompt_width so they won't
|
|
|
651 function at all in XEmacs at the moment. They are used to
|
|
|
652 implement some braindamage in FSF which we aren't including. --cet */
|
|
|
653
|
|
|
654 #if 0
|
|
826
|
655 DEFUN ("minibuffer-prompt", Fminibuffer_prompt, 0, 0, 0, /*
|
|
428
|
656 Return the prompt string of the currently-active minibuffer.
|
|
|
657 If no minibuffer is active, return nil.
|
|
|
658 */
|
|
|
659 ())
|
|
|
660 {
|
|
|
661 return Fcopy_sequence (Vminibuf_prompt);
|
|
|
662 }
|
|
|
663
|
|
826
|
664 DEFUN ("minibuffer-prompt-width", Fminibuffer_prompt_width, 0, 0, 0, /*
|
|
428
|
665 Return the display width of the minibuffer prompt.
|
|
|
666 */
|
|
|
667 ())
|
|
|
668 {
|
|
|
669 return make_int (minibuf_prompt_width);
|
|
|
670 }
|
|
|
671 #endif /* 0 */
|
|
|
672
|
|
|
673
|
|
|
674 /************************************************************************/
|
|
|
675 /* echo area */
|
|
|
676 /************************************************************************/
|
|
|
677
|
|
|
678 extern int stdout_needs_newline;
|
|
|
679
|
|
|
680 static Lisp_Object
|
|
|
681 clear_echo_area_internal (struct frame *f, Lisp_Object label, int from_print,
|
|
|
682 int no_restore)
|
|
|
683 {
|
|
|
684 /* This function can call lisp */
|
|
|
685 if (!NILP (Ffboundp (Qclear_message)))
|
|
|
686 {
|
|
793
|
687 Lisp_Object frame = wrap_frame (f);
|
|
428
|
688
|
|
|
689 return call4 (Qclear_message, label, frame, from_print ? Qt : Qnil,
|
|
|
690 no_restore ? Qt : Qnil);
|
|
|
691 }
|
|
|
692 else
|
|
|
693 {
|
|
771
|
694 stderr_out ("\n");
|
|
428
|
695 return Qnil;
|
|
|
696 }
|
|
|
697 }
|
|
|
698
|
|
|
699 Lisp_Object
|
|
|
700 clear_echo_area (struct frame *f, Lisp_Object label, int no_restore)
|
|
|
701 {
|
|
|
702 /* This function can call lisp */
|
|
|
703 return clear_echo_area_internal (f, label, 0, no_restore);
|
|
|
704 }
|
|
|
705
|
|
|
706 Lisp_Object
|
|
|
707 clear_echo_area_from_print (struct frame *f, Lisp_Object label, int no_restore)
|
|
|
708 {
|
|
|
709 /* This function can call lisp */
|
|
|
710 return clear_echo_area_internal (f, label, 1, no_restore);
|
|
|
711 }
|
|
|
712
|
|
|
713 void
|
|
867
|
714 echo_area_append (struct frame *f, const Ibyte *nonreloc, Lisp_Object reloc,
|
|
428
|
715 Bytecount offset, Bytecount length,
|
|
|
716 Lisp_Object label)
|
|
|
717 {
|
|
|
718 /* This function can call lisp */
|
|
|
719 Lisp_Object obj;
|
|
|
720 struct gcpro gcpro1;
|
|
|
721 Lisp_Object frame;
|
|
|
722
|
|
440
|
723 /* There is an inlining bug in egcs-20000131 c++ that can be worked
|
|
|
724 around as follows: */
|
|
|
725 #if defined (__GNUC__) && defined (__cplusplus)
|
|
|
726 alloca (4);
|
|
|
727 #endif
|
|
|
728
|
|
428
|
729 /* some callers pass in a null string as a way of clearing the echo area.
|
|
|
730 check for length == 0 now; if this case, neither nonreloc nor reloc
|
|
|
731 may be valid. */
|
|
|
732 if (length == 0)
|
|
|
733 return;
|
|
|
734
|
|
|
735 fixup_internal_substring (nonreloc, reloc, offset, &length);
|
|
|
736
|
|
|
737 /* also check it here, in case the string was really blank. */
|
|
|
738 if (length == 0)
|
|
|
739 return;
|
|
|
740
|
|
|
741 if (!NILP (Ffboundp (Qappend_message)))
|
|
|
742 {
|
|
|
743 if (STRINGP (reloc) && offset == 0 && length == XSTRING_LENGTH (reloc))
|
|
|
744 obj = reloc;
|
|
|
745 else
|
|
|
746 {
|
|
|
747 if (STRINGP (reloc))
|
|
|
748 nonreloc = XSTRING_DATA (reloc);
|
|
|
749 obj = make_string (nonreloc + offset, length);
|
|
|
750 }
|
|
|
751
|
|
793
|
752 frame = wrap_frame (f);
|
|
428
|
753 GCPRO1 (obj);
|
|
|
754 call4 (Qappend_message, label, obj, frame,
|
|
|
755 EQ (label, Qprint) ? Qt : Qnil);
|
|
|
756 UNGCPRO;
|
|
|
757 }
|
|
|
758 else
|
|
|
759 {
|
|
|
760 if (STRINGP (reloc))
|
|
|
761 nonreloc = XSTRING_DATA (reloc);
|
|
826
|
762 write_string_1 (Qexternal_debugging_output, nonreloc + offset, length);
|
|
428
|
763 }
|
|
|
764 }
|
|
|
765
|
|
|
766 void
|
|
867
|
767 echo_area_message (struct frame *f, const Ibyte *nonreloc,
|
|
428
|
768 Lisp_Object reloc, Bytecount offset, Bytecount length,
|
|
|
769 Lisp_Object label)
|
|
|
770 {
|
|
|
771 /* This function can call lisp */
|
|
|
772 clear_echo_area (f, label, 1);
|
|
|
773 echo_area_append (f, nonreloc, reloc, offset, length, label);
|
|
|
774 }
|
|
|
775
|
|
|
776 int
|
|
2286
|
777 echo_area_active (struct frame *UNUSED (f))
|
|
428
|
778 {
|
|
|
779 /* By definition, the echo area is active if the echo-area buffer
|
|
|
780 is not empty. No need to call Lisp code. (Anyway, this function
|
|
|
781 is called from redisplay.) */
|
|
|
782 struct buffer *echo_buffer = XBUFFER (Vecho_area_buffer);
|
|
|
783 return BUF_BEGV (echo_buffer) != BUF_ZV (echo_buffer);
|
|
|
784 }
|
|
|
785
|
|
|
786 Lisp_Object
|
|
|
787 echo_area_status (struct frame *f)
|
|
|
788 {
|
|
|
789 /* This function can call lisp */
|
|
|
790 if (!NILP (Ffboundp (Qcurrent_message_label)))
|
|
|
791 {
|
|
793
|
792 Lisp_Object frame = wrap_frame (f);
|
|
428
|
793
|
|
|
794 return call1 (Qcurrent_message_label, frame);
|
|
|
795 }
|
|
|
796 else
|
|
|
797 return stdout_needs_newline ? Qmessage : Qnil;
|
|
|
798 }
|
|
|
799
|
|
|
800 Lisp_Object
|
|
2286
|
801 echo_area_contents (struct frame *UNUSED (f))
|
|
428
|
802 {
|
|
|
803 /* See above. By definition, the contents of the echo-area buffer
|
|
|
804 are the contents of the echo area. */
|
|
|
805 return Fbuffer_substring (Qnil, Qnil, Vecho_area_buffer);
|
|
|
806 }
|
|
|
807
|
|
|
808 /* Dump an informative message to the echo area. This function takes a
|
|
|
809 string in internal format. */
|
|
|
810 void
|
|
867
|
811 message_internal (const Ibyte *nonreloc, Lisp_Object reloc,
|
|
428
|
812 Bytecount offset, Bytecount length)
|
|
|
813 {
|
|
|
814 /* This function can call lisp */
|
|
|
815 if (NILP (Vexecuting_macro))
|
|
|
816 echo_area_message (selected_frame (), nonreloc, reloc, offset, length,
|
|
|
817 Qmessage);
|
|
|
818 }
|
|
|
819
|
|
|
820 void
|
|
867
|
821 message_append_internal (const Ibyte *nonreloc, Lisp_Object reloc,
|
|
428
|
822 Bytecount offset, Bytecount length)
|
|
|
823 {
|
|
|
824 /* This function can call lisp */
|
|
|
825 if (NILP (Vexecuting_macro))
|
|
|
826 echo_area_append (selected_frame (), nonreloc, reloc, offset, length,
|
|
|
827 Qmessage);
|
|
|
828 }
|
|
|
829
|
|
|
830 /* The next three functions are interfaces to message_internal() that
|
|
|
831 take strings in external format. message() does I18N3 translating
|
|
|
832 on the format string; message_no_translate() does not. */
|
|
|
833
|
|
|
834 static void
|
|
867
|
835 message_1 (const CIbyte *fmt, va_list args)
|
|
428
|
836 {
|
|
|
837 /* This function can call lisp */
|
|
|
838 if (fmt)
|
|
|
839 {
|
|
|
840 struct gcpro gcpro1;
|
|
|
841 /* message_internal() might GC, e.g. if there are after-change-hooks
|
|
|
842 on the echo area buffer */
|
|
771
|
843 Lisp_Object obj = emacs_vsprintf_string (fmt, args);
|
|
428
|
844 GCPRO1 (obj);
|
|
|
845 message_internal (0, obj, 0, -1);
|
|
|
846 UNGCPRO;
|
|
|
847 }
|
|
|
848 else
|
|
|
849 message_internal (0, Qnil, 0, 0);
|
|
|
850 }
|
|
|
851
|
|
|
852 static void
|
|
867
|
853 message_append_1 (const CIbyte *fmt, va_list args)
|
|
428
|
854 {
|
|
|
855 /* This function can call lisp */
|
|
|
856 if (fmt)
|
|
|
857 {
|
|
|
858 struct gcpro gcpro1;
|
|
|
859 /* message_internal() might GC, e.g. if there are after-change-hooks
|
|
|
860 on the echo area buffer */
|
|
771
|
861 Lisp_Object obj = emacs_vsprintf_string (fmt, args);
|
|
428
|
862 GCPRO1 (obj);
|
|
|
863 message_append_internal (0, obj, 0, -1);
|
|
|
864 UNGCPRO;
|
|
|
865 }
|
|
|
866 else
|
|
|
867 message_append_internal (0, Qnil, 0, 0);
|
|
|
868 }
|
|
|
869
|
|
|
870 void
|
|
|
871 clear_message (void)
|
|
|
872 {
|
|
|
873 /* This function can call lisp */
|
|
|
874 message_internal (0, Qnil, 0, 0);
|
|
|
875 }
|
|
|
876
|
|
|
877 void
|
|
442
|
878 message (const char *fmt, ...)
|
|
428
|
879 {
|
|
|
880 /* This function can call lisp */
|
|
|
881 /* I think it's OK to pass the data of Lisp strings as arguments to
|
|
|
882 this function. No GC'ing will occur until the data has already
|
|
|
883 been copied. */
|
|
|
884 va_list args;
|
|
|
885
|
|
|
886 va_start (args, fmt);
|
|
|
887 if (fmt)
|
|
|
888 fmt = GETTEXT (fmt);
|
|
|
889 message_1 (fmt, args);
|
|
|
890 va_end (args);
|
|
|
891 }
|
|
|
892
|
|
|
893 void
|
|
442
|
894 message_append (const char *fmt, ...)
|
|
428
|
895 {
|
|
|
896 /* This function can call lisp */
|
|
|
897 va_list args;
|
|
|
898
|
|
|
899 va_start (args, fmt);
|
|
|
900 if (fmt)
|
|
|
901 fmt = GETTEXT (fmt);
|
|
|
902 message_append_1 (fmt, args);
|
|
|
903 va_end (args);
|
|
|
904 }
|
|
|
905
|
|
|
906 void
|
|
442
|
907 message_no_translate (const char *fmt, ...)
|
|
428
|
908 {
|
|
|
909 /* This function can call lisp */
|
|
|
910 /* I think it's OK to pass the data of Lisp strings as arguments to
|
|
|
911 this function. No GC'ing will occur until the data has already
|
|
|
912 been copied. */
|
|
|
913 va_list args;
|
|
|
914
|
|
|
915 va_start (args, fmt);
|
|
|
916 message_1 (fmt, args);
|
|
|
917 va_end (args);
|
|
|
918 }
|
|
|
919
|
|
|
920
|
|
|
921 /************************************************************************/
|
|
|
922 /* initialization */
|
|
|
923 /************************************************************************/
|
|
|
924
|
|
|
925 void
|
|
|
926 syms_of_minibuf (void)
|
|
|
927 {
|
|
563
|
928 DEFSYMBOL (Qminibuffer_setup_hook);
|
|
428
|
929
|
|
563
|
930 DEFSYMBOL (Qcompletion_ignore_case);
|
|
428
|
931
|
|
|
932 DEFSUBR (Fminibuffer_depth);
|
|
|
933 #if 0
|
|
|
934 DEFSUBR (Fminibuffer_prompt);
|
|
|
935 DEFSUBR (Fminibuffer_prompt_width);
|
|
|
936 #endif
|
|
|
937 DEFSUBR (Fset_minibuffer_preprompt);
|
|
|
938 DEFSUBR (Fread_minibuffer_internal);
|
|
|
939
|
|
|
940 DEFSUBR (Ftry_completion);
|
|
|
941 DEFSUBR (Fall_completions);
|
|
|
942
|
|
563
|
943 DEFSYMBOL (Qappend_message);
|
|
|
944 DEFSYMBOL (Qclear_message);
|
|
|
945 DEFSYMBOL (Qdisplay_message);
|
|
|
946 DEFSYMBOL (Qcurrent_message_label);
|
|
428
|
947 }
|
|
|
948
|
|
|
949 void
|
|
|
950 reinit_vars_of_minibuf (void)
|
|
|
951 {
|
|
|
952 minibuf_level = 0;
|
|
|
953 }
|
|
|
954
|
|
|
955 void
|
|
|
956 vars_of_minibuf (void)
|
|
|
957 {
|
|
|
958 reinit_vars_of_minibuf ();
|
|
|
959
|
|
|
960 staticpro (&Vminibuf_prompt);
|
|
|
961 Vminibuf_prompt = Qnil;
|
|
|
962
|
|
|
963 /* Added by Jareth Hein (jhod@po.iijnet.or.jp) for input system support */
|
|
|
964 staticpro (&Vminibuf_preprompt);
|
|
|
965 Vminibuf_preprompt = Qnil;
|
|
|
966
|
|
|
967 DEFVAR_LISP ("minibuffer-setup-hook", &Vminibuffer_setup_hook /*
|
|
|
968 Normal hook run just after entry to minibuffer.
|
|
|
969 */ );
|
|
|
970 Vminibuffer_setup_hook = Qnil;
|
|
|
971
|
|
|
972 DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case /*
|
|
|
973 Non-nil means don't consider case significant in completion.
|
|
|
974 */ );
|
|
|
975 completion_ignore_case = 0;
|
|
|
976
|
|
|
977 DEFVAR_LISP ("completion-regexp-list", &Vcompletion_regexp_list /*
|
|
|
978 List of regexps that should restrict possible completions.
|
|
|
979 Each completion has to match all regexps in this list.
|
|
|
980 */ );
|
|
|
981 Vcompletion_regexp_list = Qnil;
|
|
|
982 }
|
|
|
983
|
|
|
984 void
|
|
|
985 reinit_complex_vars_of_minibuf (void)
|
|
|
986 {
|
|
|
987 /* This function can GC */
|
|
|
988 #ifdef I18N3
|
|
|
989 /* #### This needs to be fixed up so that the gettext() gets called
|
|
|
990 at runtime instead of at load time. */
|
|
|
991 #endif
|
|
|
992 Vminibuffer_zero
|
|
|
993 = Fget_buffer_create
|
|
|
994 (build_string (DEFER_GETTEXT (" *Minibuf-0*")));
|
|
|
995 Vecho_area_buffer
|
|
|
996 = Fget_buffer_create
|
|
|
997 (build_string (DEFER_GETTEXT (" *Echo Area*")));
|
|
|
998 }
|
|
|
999
|
|
|
1000 void
|
|
|
1001 complex_vars_of_minibuf (void)
|
|
|
1002 {
|
|
|
1003 reinit_complex_vars_of_minibuf ();
|
|
|
1004 }
|
