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0
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1 /* Call a Lisp function interactively.
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2 Copyright (C) 1985, 1986, 1992, 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995, 1996 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.30, Mule 2.0. */
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23
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24 /* Authorship:
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25
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26 FSF: long ago.
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27 Mly or JWZ: various changes.
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28 */
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29
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30 #include <config.h>
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31 #include "lisp.h"
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32
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33 #include "buffer.h"
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34 #include "bytecode.h"
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35 #include "commands.h"
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36 #include "events.h"
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37 #include "insdel.h"
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38 #include "window.h"
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39
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40 extern int num_input_chars;
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41
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42 Lisp_Object Vcurrent_prefix_arg;
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43 Lisp_Object Qcall_interactively;
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44 Lisp_Object Vcommand_history;
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45
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46 Lisp_Object Vcommand_debug_status, Qcommand_debug_status;
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47 Lisp_Object Qenable_recursive_minibuffers;
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48
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49 #if 0 /* FSFmacs */
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50 /* Non-nil means treat the mark as active
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51 even if mark_active is 0. */
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52 Lisp_Object Vmark_even_if_inactive;
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53 #endif
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54
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55 #if 0 /* ill-conceived */
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56 Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook;
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57 #endif
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58
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59 Lisp_Object Qlet, QletX, Qsave_excursion;
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60
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61 Lisp_Object Qcurrent_prefix_arg;
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62
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63 Lisp_Object Quser_variable_p;
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64 Lisp_Object Qread_from_minibuffer;
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65 Lisp_Object Qread_file_name;
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66 Lisp_Object Qread_directory_name;
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67 Lisp_Object Qcompleting_read;
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68 Lisp_Object Qread_buffer;
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69 Lisp_Object Qread_function;
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70 Lisp_Object Qread_variable;
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71 Lisp_Object Qread_expression;
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72 Lisp_Object Qread_command;
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73 Lisp_Object Qread_number;
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74 Lisp_Object Qread_string;
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75 Lisp_Object Qevents_to_keys;
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76
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77 /* ARGSUSED */
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78 DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0 /*
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79 Specify a way of parsing arguments for interactive use of a function.
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80 For example, write
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81 (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)
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82 to make ARG be the prefix argument when `foo' is called as a command.
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83 The \"call\" to `interactive' is actually a declaration rather than a function;
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84 it tells `call-interactively' how to read arguments
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85 to pass to the function.
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86 When actually called, `interactive' just returns nil.
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87
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88 The argument of `interactive' is usually a string containing a code letter
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89 followed by a prompt. (Some code letters do not use I/O to get
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90 the argument and do not need prompts.) To prompt for multiple arguments,
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91 give a code letter, its prompt, a newline, and another code letter, etc.
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92 Prompts are passed to format, and may use % escapes to print the
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93 arguments that have already been read.
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94 If the argument is not a string, it is evaluated to get a list of
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95 arguments to pass to the function.
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96 Just `(interactive)' means pass no args when calling interactively.
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97
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98 Code letters available are:
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99 a -- Function name: symbol with a function definition.
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100 b -- Name of existing buffer.
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101 B -- Name of buffer, possibly nonexistent.
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102 c -- Character.
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103 C -- Command name: symbol with interactive function definition.
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104 d -- Value of point as number. Does not do I/O.
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105 D -- Directory name.
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106 e -- Last mouse-button or misc-user event that invoked this command.
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107 If used more than once, the Nth `e' returns the Nth such event.
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108 Does not do I/O.
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109 f -- Existing file name.
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110 F -- Possibly nonexistent file name.
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111 k -- Key sequence (a vector of events).
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112 K -- Key sequence to be redefined (do not automatically down-case).
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113 m -- Value of mark as number. Does not do I/O.
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114 n -- Number read using minibuffer.
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115 N -- Prefix arg converted to number, or if none, do like code `n'.
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116 p -- Prefix arg converted to number. Does not do I/O.
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117 P -- Prefix arg in raw form. Does not do I/O.
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118 r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.
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119 s -- Any string.
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120 S -- Any symbol.
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121 v -- Variable name: symbol that is user-variable-p.
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122 x -- Lisp expression read but not evaluated.
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123 X -- Lisp expression read and evaluated.
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124 In addition, if the string begins with `*'
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125 then an error is signaled if the buffer is read-only.
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126 This happens before reading any arguments.
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127 If the string begins with `@', then the window the mouse is over is selected
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128 before anything else is done.
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129 If the string begins with `_', then this command will not cause the region
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130 to be deactivated when it completes; that is, `zmacs-region-stays' will be
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131 set to t when the command exits successfully.
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132 You may use any of `@', `*' and `_' at the beginning of the string;
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133 they are processed in the order that they appear.
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134 */ )
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135 (args)
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136 Lisp_Object args;
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137 {
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138 return Qnil;
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139 }
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140
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141 /* Quotify EXP: if EXP is constant, return it.
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142 If EXP is not constant, return (quote EXP). */
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143 static Lisp_Object
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144 quotify_arg (Lisp_Object exp)
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145 {
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146 if (!INTP (exp) && !CHARP (exp) && !STRINGP (exp)
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147 && !NILP (exp) && !EQ (exp, Qt))
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148 return Fcons (Qquote, Fcons (exp, Qnil));
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149
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150 return exp;
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151 }
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152
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153 /* Modify EXP by quotifying each element (except the first). */
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154 static Lisp_Object
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155 quotify_args (Lisp_Object exp)
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156 {
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157 REGISTER Lisp_Object tail;
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158 REGISTER struct Lisp_Cons *ptr;
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159 for (tail = exp; CONSP (tail); tail = ptr->cdr)
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160 {
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161 ptr = XCONS (tail);
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162 ptr->car = quotify_arg (ptr->car);
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163 }
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164 return exp;
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165 }
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166
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167 static Bufpos
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168 check_mark (void)
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169 {
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170 Lisp_Object tem;
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171
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172 if (zmacs_regions && !zmacs_region_active_p)
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173 error ("The region is not active now");
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174
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175 tem = Fmarker_buffer (current_buffer->mark);
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176 if (NILP (tem) || (XBUFFER (tem) != current_buffer))
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177 error ("The mark is not set now");
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178
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179 return (marker_position (current_buffer->mark));
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180 }
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181
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182 static Lisp_Object
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183 callint_prompt (CONST Bufbyte *prompt_start, Bytecount prompt_length,
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184 CONST Lisp_Object *args, int nargs)
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185 {
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186 Lisp_Object s = make_string (prompt_start, prompt_length);
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187 struct gcpro gcpro1;
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188
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189 /* Fformat no longer smashes its arg vector, so no need to copy it. */
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190
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191 if (!strchr ((char *) string_data (XSTRING (s)), '%'))
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192 return (s);
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193 GCPRO1 (s);
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194 RETURN_UNGCPRO (emacs_doprnt_string_lisp (0, s, 0, nargs, args));
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195 }
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196
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197 /* `lambda' for RECORD-FLAG is an XEmacs addition. */
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198
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199 DEFUN ("call-interactively", Fcall_interactively, Scall_interactively,
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200 1, 3, 0 /*
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201 Call FUNCTION, reading args according to its interactive calling specs.
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202 Return the value FUNCTION returns.
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203 The function contains a specification of how to do the argument reading.
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204 In the case of user-defined functions, this is specified by placing a call
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205 to the function `interactive' at the top level of the function body.
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206 See `interactive'.
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207
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208 If optional second arg RECORD-FLAG is the symbol `lambda', the interactive
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209 calling arguments for FUNCTION are read and returned as a list,
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210 but the function is not called on them.
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211
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212 If RECORD-FLAG is `t' then unconditionally put this command in the
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213 command-history. Otherwise, this is done only if an arg is read using
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214 the minibuffer.
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215
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216 The argument KEYS specifies the value to use instead of (this-command-keys)
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217 when reading the arguments.
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218 */ )
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219 (function, record_flag, keys)
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220 Lisp_Object function, record_flag, keys;
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221 {
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222 /* This function can GC */
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223 int speccount = specpdl_depth ();
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224 Lisp_Object prefix;
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225
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226 Lisp_Object fun;
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227 Lisp_Object specs = Qnil;
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228 #ifdef IT_SEEMS_THAT_MLY_DOESNT_LIKE_THIS
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229 Lisp_Object enable;
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230 #endif
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231 /* If SPECS is a string, we reset prompt_data to string_data
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232 * (XSTRING (specs)) every time a GC might have occurred */
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233 CONST char *prompt_data = 0;
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234 int prompt_index = 0;
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235 int argcount;
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236 int set_zmacs_region_stays = 0;
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237 int mouse_event_count = 0;
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238
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239 if (!NILP (keys))
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240 {
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241 int i;
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242
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243 CHECK_VECTOR (keys);
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244 for (i = 0; i < vector_length (XVECTOR (keys)); i++)
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245 CHECK_LIVE_EVENT (vector_data (XVECTOR (keys))[i]);
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246 }
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247
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248 /* Save this now, since use of minibuffer will clobber it. */
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249 prefix = Vcurrent_prefix_arg;
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250
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251 retry:
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252
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253 #ifdef IT_SEEMS_THAT_MLY_DOESNT_LIKE_THIS
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254 /* Marginal kludge. Use an evaluated interactive spec instead of this! */
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255 if (SYMBOLP (function))
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256 enable = Fget (function, Qenable_recursive_minibuffers, Qnil);
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257 #endif
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258
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259 fun = indirect_function (function, 1);
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260
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261 /* Decode the kind of function. Either handle it and return,
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262 or go to `lose' if not interactive, or go to `retry'
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263 to specify a different function, or set either PROMPT_DATA or SPECS. */
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264
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265 if (SUBRP (fun))
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266 {
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267 prompt_data = XSUBR (fun)->prompt;
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268 if (!prompt_data)
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269 {
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270 lose:
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271 function = wrong_type_argument (Qcommandp, function);
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272 goto retry;
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273 }
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274 #if 0 /* FSFmacs */ /* Huh? Where is this used? */
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275 if ((EMACS_INT) prompt_data == 1)
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276 /* Let SPECS (which is nil) be used as the args. */
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277 prompt_data = 0;
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278 #endif
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279 }
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280 else if (COMPILED_FUNCTIONP (fun))
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281 {
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282 struct Lisp_Compiled_Function *b = XCOMPILED_FUNCTION (fun);
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283 if (!(b->flags.interactivep))
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284 goto lose;
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285 specs = compiled_function_interactive (b);
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286 }
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287 else if (!CONSP (fun))
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288 goto lose;
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289 else
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290 {
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291 Lisp_Object funcar = Fcar (fun);
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292
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293 if (EQ (funcar, Qautoload))
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294 {
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295 struct gcpro gcpro1, gcpro2;
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296 GCPRO2 (function, prefix);
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297 do_autoload (fun, function);
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298 UNGCPRO;
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299 goto retry;
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300 }
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301 else if (EQ (funcar, Qlambda))
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302 {
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303 specs = Fassq (Qinteractive, Fcdr (Fcdr (fun)));
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304 if (NILP (specs))
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305 goto lose;
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306 specs = Fcar (Fcdr (specs));
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307 }
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308 #ifdef MOCKLISP_SUPPORT
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309 else if (EQ (funcar, Qmocklisp))
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310 {
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311 single_console_state ();
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312 return ml_apply (fun, Qinteractive);
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313 }
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314 #endif
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315 else
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316 goto lose;
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317 }
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318
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319 /* FSFmacs makes an alloca() copy of prompt_data here.
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320 We're more intelligent about this and just reset prompt_data
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321 as necessary. */
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322 /* If either specs or prompt_data is set to a string, use it. */
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323 if (!STRINGP (specs) && prompt_data == 0)
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324 {
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325 struct gcpro gcpro1, gcpro2, gcpro3;
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326 int i = num_input_chars;
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327 Lisp_Object input = specs;
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328
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329 GCPRO3 (function, specs, input);
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330 /* Compute the arg values using the user's expression. */
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331 specs = Feval (specs);
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332 if (EQ (record_flag, Qlambda)) /* XEmacs addition */
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333 {
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334 UNGCPRO;
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335 return (specs);
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336 }
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337 if (!NILP (record_flag) || i != num_input_chars)
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338 {
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339 /* We should record this command on the command history. */
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340 /* #### The following is too specific; should have general
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341 mechanism for doing this. */
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342 Lisp_Object values, car;
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343 /* Make a copy of the list of values, for the command history,
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344 and turn them into things we can eval. */
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345 values = quotify_args (Fcopy_sequence (specs));
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346 /* If the list of args was produced with an explicit call to `list',
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347 look for elements that were computed with (region-beginning)
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348 or (region-end), and put those expressions into VALUES
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349 instead of the present values. */
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350 if (CONSP (input))
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351 {
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352 car = XCAR (input);
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353 /* Skip through certain special forms. */
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354 while (EQ (car, Qlet) || EQ (car, QletX)
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355 || EQ (car, Qsave_excursion))
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356 {
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357 while (CONSP (XCDR (input)))
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358 input = XCDR (input);
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359 input = XCAR (input);
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360 if (!CONSP (input))
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361 break;
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362 car = XCAR (input);
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363 }
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364 if (EQ (car, Qlist))
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365 {
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366 Lisp_Object intail, valtail;
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367 for (intail = Fcdr (input), valtail = values;
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368 CONSP (valtail);
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369 intail = Fcdr (intail), valtail = Fcdr (valtail))
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370 {
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371 Lisp_Object elt;
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372 elt = Fcar (intail);
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373 if (CONSP (elt))
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374 {
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375 Lisp_Object eltcar = Fcar (elt);
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376 if (EQ (eltcar, Qpoint)
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377 || EQ (eltcar, Qmark)
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378 || EQ (eltcar, Qregion_beginning)
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379 || EQ (eltcar, Qregion_end))
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380 Fsetcar (valtail, Fcar (intail));
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381 }
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382 }
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383 }
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384 }
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385 Vcommand_history
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386 = Fcons (Fcons (function, values), Vcommand_history);
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387 }
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388 single_console_state ();
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389 RETURN_UNGCPRO (apply1 (fun, specs));
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390 }
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391
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392 /* Here if function specifies a string to control parsing the defaults */
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393
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394 #ifdef I18N3
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395 /* Translate interactive prompt. */
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396 if (STRINGP (specs))
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397 {
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398 Lisp_Object domain = Qnil;
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399 if (COMPILED_FUNCTIONP (fun))
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400 domain = Fcompiled_function_domain (fun);
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401 if (NILP (domain))
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|
|
402 specs = Fgettext (specs);
|
|
|
403 else
|
|
|
404 specs = Fdgettext (domain, specs);
|
|
|
405 }
|
|
|
406 else if (prompt_data)
|
|
|
407 /* We do not have to worry about domains in this case because
|
|
|
408 prompt_data is non-nil only for built-in functions, which
|
|
|
409 always use the default domain. */
|
|
|
410 prompt_data = gettext (prompt_data);
|
|
|
411 #endif
|
|
|
412
|
|
|
413 /* Handle special starting chars `*' and `@' and `_'. */
|
|
|
414 /* Note that `+' is reserved for user extensions. */
|
|
|
415 prompt_index = 0;
|
|
|
416 {
|
|
|
417 struct gcpro gcpro1, gcpro2;
|
|
|
418 GCPRO2 (function, specs);
|
|
|
419
|
|
|
420 for (;;)
|
|
|
421 {
|
|
|
422 if (STRINGP (specs))
|
|
|
423 prompt_data = (CONST char *) string_data (XSTRING (specs));
|
|
|
424
|
|
|
425 if (prompt_data[prompt_index] == '+')
|
|
|
426 error ("`+' is not used in `interactive' for ordinary commands");
|
|
|
427 else if (prompt_data[prompt_index] == '*')
|
|
|
428 {
|
|
|
429 prompt_index++;
|
|
|
430 if (!NILP (current_buffer->read_only))
|
|
|
431 barf_if_buffer_read_only (current_buffer, -1, -1);
|
|
|
432 }
|
|
|
433 else if (prompt_data[prompt_index] == '@')
|
|
|
434 {
|
|
|
435 Lisp_Object event;
|
|
|
436 prompt_index++;
|
|
|
437
|
|
|
438 if (!NILP (keys))
|
|
|
439 event = extract_vector_nth_mouse_event (keys, 0);
|
|
|
440 else
|
|
|
441 #if 0
|
|
|
442 event = extract_this_command_keys_nth_mouse_event (0);
|
|
|
443 #else
|
|
|
444 /* Doesn't work; see below */
|
|
|
445 event = Vcurrent_mouse_event;
|
|
|
446 #endif
|
|
|
447 if (! NILP (event))
|
|
|
448 {
|
|
|
449 Lisp_Object window = Fevent_window (event);
|
|
|
450 if (!NILP (window))
|
|
|
451 {
|
|
|
452 if (MINI_WINDOW_P (XWINDOW (window))
|
|
|
453 && ! (minibuf_level > 0 && EQ (window,
|
|
|
454 minibuf_window)))
|
|
|
455 error ("Attempt to select inactive minibuffer window");
|
|
|
456
|
|
|
457 #if 0 /* unclean! see event-stream.c */
|
|
|
458 /* If the current buffer wants to clean up, let it. */
|
|
|
459 if (!NILP (Vmouse_leave_buffer_hook))
|
|
|
460 run_hook (Qmouse_leave_buffer_hook);
|
|
|
461 #endif
|
|
|
462
|
|
|
463 Fselect_window (window);
|
|
|
464 }
|
|
|
465 }
|
|
|
466 }
|
|
|
467 else if (prompt_data[prompt_index] == '_')
|
|
|
468 {
|
|
|
469 prompt_index++;
|
|
|
470 set_zmacs_region_stays = 1;
|
|
|
471 }
|
|
|
472 else
|
|
|
473 {
|
|
|
474 UNGCPRO;
|
|
|
475 break;
|
|
|
476 }
|
|
|
477 }
|
|
|
478 }
|
|
|
479
|
|
|
480 /* Count the number of arguments the interactive spec would have
|
|
|
481 us give to the function. */
|
|
|
482 argcount = 0;
|
|
|
483 {
|
|
|
484 CONST char *tem;
|
|
|
485 for (tem = prompt_data + prompt_index; *tem; )
|
|
|
486 {
|
|
|
487 /* 'r' specifications ("point and mark as 2 numeric args")
|
|
|
488 produce *two* arguments. */
|
|
|
489 if (*tem == 'r')
|
|
|
490 argcount += 2;
|
|
|
491 else
|
|
|
492 argcount += 1;
|
|
|
493 tem = (CONST char *) strchr (tem + 1, '\n');
|
|
|
494 if (!tem)
|
|
|
495 break;
|
|
|
496 tem++;
|
|
|
497 }
|
|
|
498 }
|
|
|
499
|
|
|
500 #ifdef IT_SEEMS_THAT_MLY_DOESNT_LIKE_THIS
|
|
|
501 if (!NILP (enable))
|
|
|
502 specbind (Qenable_recursive_minibuffers, Qt);
|
|
|
503 #endif
|
|
|
504
|
|
|
505 if (argcount == 0)
|
|
|
506 {
|
|
|
507 /* Interactive function or no arguments; just call it */
|
|
|
508 if (EQ (record_flag, Qlambda))
|
|
|
509 return (Qnil);
|
|
|
510 if (!NILP (record_flag))
|
|
|
511 {
|
|
|
512 Vcommand_history = Fcons (list1 (function), Vcommand_history);
|
|
|
513 }
|
|
|
514 specbind (Qcommand_debug_status, Qnil);
|
|
|
515 /* XEmacs: was fun = call0 (fun), but that's backtraced wrong */
|
|
|
516 {
|
|
|
517 struct gcpro gcpro1;
|
|
|
518
|
|
|
519 GCPRO1 (fun);
|
|
|
520 fun = funcall_recording_as (function, 1, &fun);
|
|
|
521 UNGCPRO;
|
|
|
522 }
|
|
|
523 if (set_zmacs_region_stays)
|
|
|
524 zmacs_region_stays = 1;
|
|
|
525 return (unbind_to (speccount, fun));
|
|
|
526 }
|
|
|
527
|
|
|
528 /* Read interactive arguments */
|
|
|
529 {
|
|
|
530 /* args[-1] is the function to call */
|
|
|
531 /* args[n] is the n'th argument to the function */
|
|
|
532 int alloca_size = (1 /* function to call */
|
|
|
533 + argcount /* actual arguments */
|
|
|
534 + argcount /* visargs */
|
|
|
535 + argcount /* varies */
|
|
|
536 );
|
|
|
537 Lisp_Object *args
|
|
|
538 = (((Lisp_Object *) alloca (sizeof (Lisp_Object) * alloca_size))
|
|
|
539 + 1);
|
|
|
540 /* visargs is an array of either Qnil or user-friendlier versions (often
|
|
|
541 * strings) of previous arguments, to use in prompts for succesive
|
|
|
542 * arguments. ("Often strings" because emacs didn't used to have
|
|
|
543 * format %S and prin1-to-string.) */
|
|
|
544 Lisp_Object *visargs = args + argcount;
|
|
|
545 /* If varies[i] is non-null, the i'th argument shouldn't just have
|
|
|
546 its value in this call quoted in the command history. It should be
|
|
|
547 recorded as a call to the function named varies[i]]. */
|
|
|
548 Lisp_Object *varies = visargs + argcount;
|
|
|
549 int arg_from_tty = 0;
|
|
|
550 REGISTER int argnum;
|
|
|
551 struct gcpro gcpro1, gcpro2;
|
|
|
552
|
|
|
553 args[-1] = function;
|
|
|
554 for (argnum = 0; argnum < alloca_size - 1; argnum++)
|
|
|
555 args[argnum] = Qnil;
|
|
|
556
|
|
|
557 /* Must GC-protect args[-1] (ie function) because Ffuncall doesn't */
|
|
|
558 /* `function' itself isn't GC-protected -- use args[-1] from here
|
|
|
559 (actually, doesn't matter since Emacs GC doesn't relocate, sigh) */
|
|
|
560 GCPRO2 (prefix, args[-1]);
|
|
|
561 gcpro2.nvars = alloca_size;
|
|
|
562
|
|
|
563 for (argnum = 0; ; argnum++)
|
|
|
564 {
|
|
|
565 CONST char *prompt_start = prompt_data + prompt_index + 1;
|
|
|
566 CONST char *prompt_limit = (CONST char *) strchr (prompt_start, '\n');
|
|
|
567 int prompt_length;
|
|
|
568 prompt_length = ((prompt_limit)
|
|
|
569 ? (prompt_limit - prompt_start)
|
|
|
570 : strlen (prompt_start));
|
|
|
571 if (prompt_limit && prompt_limit[1] == 0)
|
|
|
572 {
|
|
|
573 prompt_limit = 0; /* "sfoo:\n" -- strip tailing return */
|
|
|
574 prompt_length -= 1;
|
|
|
575 }
|
|
|
576 /* This uses `visargs' instead of `args' so that global-set-key
|
|
|
577 prompts with "Set key C-x C-f to command: "instead of printing
|
|
|
578 event objects in there.
|
|
|
579 */
|
|
|
580 #define PROMPT() callint_prompt ((CONST Bufbyte *) prompt_start, prompt_length, visargs, argnum)
|
|
|
581 switch (prompt_data[prompt_index])
|
|
|
582 {
|
|
|
583 case 'a': /* Symbol defined as a function */
|
|
|
584 {
|
|
|
585 Lisp_Object tem = call1 (Qread_function, PROMPT ());
|
|
|
586 args[argnum] = tem;
|
|
|
587 arg_from_tty = 1;
|
|
|
588 break;
|
|
|
589 }
|
|
|
590 case 'b': /* Name of existing buffer */
|
|
|
591 {
|
|
|
592 Lisp_Object def = Fcurrent_buffer ();
|
|
|
593 if (EQ (Fselected_window (Qnil), minibuf_window))
|
|
|
594 def = Fother_buffer (def, Qnil, Qnil);
|
|
|
595 /* read-buffer returns a buffer name, not a buffer! */
|
|
|
596 args[argnum] = call3 (Qread_buffer, PROMPT (), def,
|
|
|
597 Qt);
|
|
|
598 arg_from_tty = 1;
|
|
|
599 break;
|
|
|
600 }
|
|
|
601 case 'B': /* Name of buffer, possibly nonexistent */
|
|
|
602 {
|
|
|
603 /* read-buffer returns a buffer name, not a buffer! */
|
|
|
604 args[argnum] = call2 (Qread_buffer, PROMPT (),
|
|
|
605 Fother_buffer (Fcurrent_buffer (), Qnil,
|
|
|
606 Qnil));
|
|
|
607 arg_from_tty = 1;
|
|
|
608 break;
|
|
|
609 }
|
|
|
610 case 'c': /* Character */
|
|
|
611 {
|
|
|
612 Lisp_Object tem;
|
|
|
613 int shadowing_speccount = specpdl_depth ();
|
|
|
614
|
|
|
615 specbind (Qcursor_in_echo_area, Qt);
|
|
|
616 message ("%s", string_data (XSTRING (PROMPT ())));
|
|
|
617 tem = (call0 (Qread_char));
|
|
|
618 args[argnum] = tem;
|
|
|
619 /* visargs[argnum] = Fsingle_key_description (tem); */
|
|
|
620 /* FSF has visargs[argnum] = Fchar_to_string (tem); */
|
|
|
621
|
|
|
622 unbind_to (shadowing_speccount, Qnil);
|
|
|
623
|
|
|
624 /* #### `C-x / a' should not leave the prompt in the minibuffer.
|
|
|
625 This isn't the right fix, because (message ...) (read-char)
|
|
|
626 shouldn't leave the message there either... */
|
|
|
627 clear_message ();
|
|
|
628
|
|
|
629 arg_from_tty = 1;
|
|
|
630 break;
|
|
|
631 }
|
|
|
632 case 'C': /* Command: symbol with interactive function */
|
|
|
633 {
|
|
|
634 Lisp_Object tem = call1 (Qread_command, PROMPT ());
|
|
|
635 args[argnum] = tem;
|
|
|
636 arg_from_tty = 1;
|
|
|
637 break;
|
|
|
638 }
|
|
|
639 case 'd': /* Value of point. Does not do I/O. */
|
|
|
640 {
|
|
|
641 args[argnum] = Fcopy_marker (current_buffer->point_marker, Qt);
|
|
|
642 varies[argnum] = Qpoint;
|
|
|
643 break;
|
|
|
644 }
|
|
|
645 case 'e':
|
|
|
646 {
|
|
|
647 Lisp_Object event;
|
|
|
648
|
|
|
649 if (!NILP (keys))
|
|
|
650 event = extract_vector_nth_mouse_event (keys,
|
|
|
651 mouse_event_count);
|
|
|
652 else
|
|
|
653 #if 0
|
|
|
654 /* This doesn't quite work because this-command-keys
|
|
|
655 behaves in utterly counterintuitive ways. Sometimes
|
|
|
656 it retrieves an event back in the future, e.g. when
|
|
|
657 one command invokes another command and both are
|
|
|
658 invoked with the mouse. */
|
|
|
659 event = (extract_this_command_keys_nth_mouse_event
|
|
|
660 (mouse_event_count));
|
|
|
661 #else
|
|
|
662 event = Vcurrent_mouse_event;
|
|
|
663 #endif
|
|
|
664
|
|
|
665 if (NILP (event))
|
|
|
666 error ("%s must be bound to a mouse or misc-user event",
|
|
|
667 (SYMBOLP (function)
|
|
|
668 ? (char *) string_data (XSYMBOL (function)->name)
|
|
|
669 : "command"));
|
|
|
670 args[argnum] = event;
|
|
|
671 mouse_event_count++;
|
|
|
672 break;
|
|
|
673 }
|
|
|
674 case 'D': /* Directory name. */
|
|
|
675 {
|
|
|
676 args[argnum] = call4 (Qread_directory_name, PROMPT (),
|
|
|
677 Qnil, /* dir */
|
|
|
678 current_buffer->directory, /* default */
|
|
|
679 Qt /* must-match */
|
|
|
680 );
|
|
|
681 arg_from_tty = 1;
|
|
|
682 break;
|
|
|
683 }
|
|
|
684 case 'f': /* Existing file name. */
|
|
|
685 {
|
|
|
686 Lisp_Object tem = call4 (Qread_file_name, PROMPT (),
|
|
|
687 Qnil, /* dir */
|
|
|
688 Qnil, /* default */
|
|
|
689 make_int (0) /* must-match */
|
|
|
690 );
|
|
|
691 args[argnum] = tem;
|
|
|
692 arg_from_tty = 1;
|
|
|
693 break;
|
|
|
694 }
|
|
|
695 case 'F': /* Possibly nonexistent file name. */
|
|
|
696 {
|
|
|
697 args[argnum] = call4 (Qread_file_name, PROMPT (),
|
|
|
698 Qnil, /* dir */
|
|
|
699 Qnil, /* default */
|
|
|
700 Qnil /* must-match */
|
|
|
701 );
|
|
|
702 arg_from_tty = 1;
|
|
|
703 break;
|
|
|
704 }
|
|
|
705 case 'k': /* Key sequence (vector of events) */
|
|
|
706 {
|
|
|
707 Lisp_Object tem = Fread_key_sequence (PROMPT (), Qnil, Qnil);
|
|
|
708 visargs[argnum] = Fkey_description (tem);
|
|
|
709 /* The following makes `describe-key' not work with
|
|
|
710 extent-local keymaps and such; and anyway, it's
|
|
|
711 contrary to the documentation. */
|
|
|
712 /* args[argnum] = call1 (Qevents_to_keys, tem); */
|
|
|
713 args[argnum] = tem;
|
|
|
714 arg_from_tty = 1;
|
|
|
715 break;
|
|
|
716 }
|
|
|
717 case 'K': /* Key sequence (vector of events),
|
|
|
718 no automatic downcasing */
|
|
|
719 {
|
|
|
720 Lisp_Object tem = Fread_key_sequence (PROMPT (), Qnil, Qt);
|
|
|
721 visargs[argnum] = Fkey_description (tem);
|
|
|
722 /* The following makes `describe-key' not work with
|
|
|
723 extent-local keymaps and such; and anyway, it's
|
|
|
724 contrary to the documentation. */
|
|
|
725 /* args[argnum] = call1 (Qevents_to_keys, tem); */
|
|
|
726 args[argnum] = tem;
|
|
|
727 arg_from_tty = 1;
|
|
|
728 break;
|
|
|
729 }
|
|
|
730
|
|
|
731 case 'm': /* Value of mark. Does not do I/O. */
|
|
|
732 {
|
|
|
733 args[argnum] = current_buffer->mark;
|
|
|
734 varies[argnum] = Qmark;
|
|
|
735 break;
|
|
|
736 }
|
|
|
737 case 'n': /* Read number from minibuffer. */
|
|
|
738 {
|
|
|
739 read_number:
|
|
|
740 args[argnum] = call2 (Qread_number, PROMPT (), Qt);
|
|
|
741 /* numbers are too boring to go on command history */
|
|
|
742 /* arg_from_tty = 1; */
|
|
|
743 break;
|
|
|
744 }
|
|
|
745 case 'N': /* Prefix arg, else number from minibuffer */
|
|
|
746 {
|
|
|
747 if (NILP (prefix))
|
|
|
748 goto read_number;
|
|
|
749 else
|
|
|
750 goto prefix_value;
|
|
|
751 }
|
|
|
752 case 'P': /* Prefix arg in raw form. Does no I/O. */
|
|
|
753 {
|
|
|
754 args[argnum] = prefix;
|
|
|
755 break;
|
|
|
756 }
|
|
|
757 case 'p': /* Prefix arg converted to number. No I/O. */
|
|
|
758 {
|
|
|
759 prefix_value:
|
|
|
760 {
|
|
|
761 Lisp_Object tem = Fprefix_numeric_value (prefix);
|
|
|
762 args[argnum] = tem;
|
|
|
763 }
|
|
|
764 break;
|
|
|
765 }
|
|
|
766 case 'r': /* Region, point and mark as 2 args. */
|
|
|
767 {
|
|
|
768 Bufpos tem = check_mark ();
|
|
|
769 args[argnum] = (BUF_PT (current_buffer) < tem
|
|
|
770 ? Fcopy_marker (current_buffer->point_marker, Qt)
|
|
|
771 : current_buffer->mark);
|
|
|
772 varies[argnum] = Qregion_beginning;
|
|
|
773 args[++argnum] = (BUF_PT (current_buffer) > tem
|
|
|
774 ? Fcopy_marker (current_buffer->point_marker,
|
|
|
775 Qt)
|
|
|
776 : current_buffer->mark);
|
|
|
777 varies[argnum] = Qregion_end;
|
|
|
778 break;
|
|
|
779 }
|
|
|
780 case 's': /* String read via minibuffer. */
|
|
|
781 {
|
|
|
782 args[argnum] = call1 (Qread_string, PROMPT ());
|
|
|
783 arg_from_tty = 1;
|
|
|
784 break;
|
|
|
785 }
|
|
|
786 case 'S': /* Any symbol. */
|
|
|
787 {
|
|
|
788 #if 0 /* Historical crock */
|
|
|
789 Lisp_Object tem = intern ("minibuffer-local-ns-map");
|
|
|
790 tem = find_symbol_value (tem);
|
|
|
791 if (UNBOUNDP (tem)) tem = Qnil;
|
|
|
792 tem = call3 (Qread_from_minibuffer, PROMPT (), Qnil,
|
|
|
793 tem);
|
|
|
794 args[argnum] = Fintern (tem, Qnil);
|
|
|
795 #else /* 1 */
|
|
|
796 visargs[argnum] = Qnil;
|
|
|
797 for (;;)
|
|
|
798 {
|
|
|
799 Lisp_Object tem = call5 (Qcompleting_read,
|
|
|
800 PROMPT (),
|
|
|
801 Vobarray,
|
|
|
802 Qnil,
|
|
|
803 Qnil,
|
|
|
804 /* nil, or prev attempt */
|
|
|
805 visargs[argnum]);
|
|
|
806 visargs[argnum] = tem;
|
|
|
807 /* I could use condition-case with this loser, but why bother?
|
|
|
808 * tem = Fread (tem); check-symbol-p;
|
|
|
809 */
|
|
|
810 tem = Fintern (tem, Qnil);
|
|
|
811 args[argnum] = tem;
|
|
|
812 if (string_length (XSYMBOL (tem)->name) > 0)
|
|
|
813 /* Don't accept the empty-named symbol. If the loser
|
|
|
814 really wants this s/he can call completing-read
|
|
|
815 directly */
|
|
|
816 break;
|
|
|
817 }
|
|
|
818 #endif /* 1 */
|
|
|
819 arg_from_tty = 1;
|
|
|
820 break;
|
|
|
821 }
|
|
|
822 case 'v': /* Variable name: user-variable-p symbol */
|
|
|
823 {
|
|
|
824 Lisp_Object tem = call1 (Qread_variable, PROMPT ());
|
|
|
825 args[argnum] = tem;
|
|
|
826 arg_from_tty = 1;
|
|
|
827 break;
|
|
|
828 }
|
|
|
829 case 'x': /* Lisp expression read but not evaluated */
|
|
|
830 {
|
|
|
831 args[argnum] = call1 (Qread_expression, PROMPT ());
|
|
|
832 /* visargs[argnum] = Fprin1_to_string (args[argnum], Qnil); */
|
|
|
833 arg_from_tty = 1;
|
|
|
834 break;
|
|
|
835 }
|
|
|
836 case 'X': /* Lisp expression read and evaluated */
|
|
|
837 {
|
|
|
838 Lisp_Object tem = call1 (Qread_expression, PROMPT ());
|
|
|
839 /* visargs[argnum] = Fprin1_to_string (tem, Qnil); */
|
|
|
840 args[argnum] = Feval (tem);
|
|
|
841 arg_from_tty = 1;
|
|
|
842 break;
|
|
|
843 }
|
|
|
844
|
|
|
845 /* We have a case for `+' so we get an error
|
|
|
846 if anyone tries to define one here. */
|
|
|
847 case '+':
|
|
|
848 default:
|
|
|
849 {
|
|
|
850 error ("Invalid `interactive' control letter \"%c\" (#o%03o).",
|
|
|
851 prompt_data[prompt_index],
|
|
|
852 prompt_data[prompt_index]);
|
|
|
853 }
|
|
|
854 }
|
|
|
855 #undef PROMPT
|
|
|
856 if (NILP (visargs[argnum]))
|
|
|
857 visargs[argnum] = args[argnum];
|
|
|
858
|
|
|
859 if (!prompt_limit)
|
|
|
860 break;
|
|
|
861 if (STRINGP (specs))
|
|
|
862 prompt_data = (CONST char *) string_data (XSTRING (specs));
|
|
|
863 prompt_index += prompt_length + 1 + 1; /* +1 to skip spec, +1 for \n */
|
|
|
864 }
|
|
|
865 unbind_to (speccount, Qnil);
|
|
|
866
|
|
|
867 QUIT;
|
|
|
868
|
|
|
869 if (EQ (record_flag, Qlambda))
|
|
|
870 {
|
|
|
871 RETURN_UNGCPRO (Flist (argcount, args));
|
|
|
872 }
|
|
|
873
|
|
|
874 if (arg_from_tty || !NILP (record_flag))
|
|
|
875 {
|
|
|
876 /* Reuse visargs as a temporary for constructing the command history */
|
|
|
877 for (argnum = 0; argnum < argcount; argnum++)
|
|
|
878 {
|
|
|
879 if (!NILP (varies[argnum]))
|
|
|
880 visargs[argnum] = list1 (varies[argnum]);
|
|
|
881 else
|
|
|
882 visargs[argnum] = quotify_arg (args[argnum]);
|
|
|
883 }
|
|
|
884 Vcommand_history = Fcons (Fcons (args[-1], Flist (argcount, visargs)),
|
|
|
885 Vcommand_history);
|
|
|
886 }
|
|
|
887
|
|
|
888 /* If we used a marker to hold point, mark, or an end of the region,
|
|
|
889 temporarily, convert it to an integer now. */
|
|
|
890 for (argnum = 0; argnum < argcount; argnum++)
|
|
|
891 if (!NILP (varies[argnum]))
|
|
|
892 XSETINT (args[argnum], marker_position (args[argnum]));
|
|
|
893
|
|
|
894 single_console_state ();
|
|
|
895 specbind (Qcommand_debug_status, Qnil);
|
|
|
896 fun = Ffuncall (argcount + 1, args - 1);
|
|
|
897 UNGCPRO;
|
|
|
898 if (set_zmacs_region_stays)
|
|
|
899 zmacs_region_stays = 1;
|
|
|
900 return (unbind_to (speccount, fun));
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
|
904 DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value,
|
|
|
905 1, 1, 0 /*
|
|
|
906 Return numeric meaning of raw prefix argument ARG.
|
|
|
907 A raw prefix argument is what you get from `(interactive \"P\")'.
|
|
|
908 Its numeric meaning is what you would get from `(interactive \"p\")'.
|
|
|
909 */ )
|
|
|
910 (raw)
|
|
|
911 Lisp_Object raw;
|
|
|
912 {
|
|
|
913 int val;
|
|
|
914
|
|
|
915 if (NILP (raw))
|
|
|
916 val = 1;
|
|
|
917 else if (EQ (raw, Qminus))
|
|
|
918 val = -1;
|
|
|
919 else if (INTP (raw))
|
|
|
920 val = XINT (raw);
|
|
|
921 else if (CONSP (raw) && INTP (XCAR (raw)))
|
|
|
922 val = XINT (XCAR (raw));
|
|
|
923 else
|
|
|
924 val = 1;
|
|
|
925
|
|
|
926 return (make_int (val));
|
|
|
927
|
|
|
928 }
|
|
|
929
|
|
|
930 void
|
|
|
931 syms_of_callint (void)
|
|
|
932 {
|
|
|
933 defsymbol (&Qcall_interactively, "call-interactively");
|
|
|
934 defsymbol (&Qread_from_minibuffer, "read-from-minibuffer");
|
|
|
935 defsymbol (&Qcompleting_read, "completing-read");
|
|
|
936 defsymbol (&Qread_file_name, "read-file-name");
|
|
|
937 defsymbol (&Qread_directory_name, "read-directory-name");
|
|
|
938 defsymbol (&Qread_string, "read-string");
|
|
|
939 defsymbol (&Qread_buffer, "read-buffer");
|
|
|
940 defsymbol (&Qread_variable, "read-variable");
|
|
|
941 defsymbol (&Qread_function, "read-function");
|
|
|
942 defsymbol (&Qread_command, "read-command");
|
|
|
943 defsymbol (&Qread_number, "read-number");
|
|
|
944 defsymbol (&Qread_expression, "read-expression");
|
|
|
945 defsymbol (&Qevents_to_keys, "events-to-keys");
|
|
|
946 defsymbol (&Qcommand_debug_status, "command-debug-status");
|
|
|
947 defsymbol (&Qenable_recursive_minibuffers, "enable-recursive-minibuffers");
|
|
|
948 defsymbol (&Qcommand_debug_status, "command-debug-status");
|
|
|
949 defsymbol (&Quser_variable_p, "user-variable-p");
|
|
|
950 defsymbol (&Qcurrent_prefix_arg, "current-prefix-arg");
|
|
|
951
|
|
|
952 defsymbol (&Qlet, "let");
|
|
|
953 defsymbol (&QletX, "let*");
|
|
|
954 defsymbol (&Qsave_excursion, "save-excursion");
|
|
|
955 #if 0 /* ill-conceived */
|
|
|
956 defsymbol (&Qmouse_leave_buffer_hook, "mouse-leave-buffer-hook");
|
|
|
957 #endif
|
|
|
958
|
|
|
959 defsubr (&Sinteractive);
|
|
|
960 defsubr (&Scall_interactively);
|
|
|
961 defsubr (&Sprefix_numeric_value);
|
|
|
962 }
|
|
|
963
|
|
|
964 void
|
|
|
965 vars_of_callint (void)
|
|
|
966 {
|
|
|
967 DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg /*
|
|
|
968 The value of the prefix argument for this editing command.
|
|
|
969 It may be a number, or the symbol `-' for just a minus sign as arg,
|
|
|
970 or a list whose car is a number for just one or more C-U's
|
|
|
971 or nil if no argument has been specified.
|
|
|
972 This is what `(interactive \"P\")' returns.
|
|
|
973 */ );
|
|
|
974 Vcurrent_prefix_arg = Qnil;
|
|
|
975
|
|
|
976 DEFVAR_LISP ("command-history", &Vcommand_history /*
|
|
|
977 List of recent commands that read arguments from terminal.
|
|
|
978 Each command is represented as a form to evaluate.
|
|
|
979 */ );
|
|
|
980 Vcommand_history = Qnil;
|
|
|
981
|
|
|
982 DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status /*
|
|
|
983 Debugging status of current interactive command.
|
|
|
984 Bound each time `call-interactively' is called;
|
|
|
985 may be set by the debugger as a reminder for itself.
|
|
|
986 */ );
|
|
|
987 Vcommand_debug_status = Qnil;
|
|
|
988
|
|
|
989 #if 0 /* FSFmacs */
|
|
|
990 xxDEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive /*
|
|
|
991 *Non-nil means you can use the mark even when inactive.
|
|
|
992 This option makes a difference in Transient Mark mode.
|
|
|
993 When the option is non-nil, deactivation of the mark
|
|
|
994 turns off region highlighting, but commands that use the mark
|
|
|
995 behave as if the mark were still active.
|
|
|
996 */ );
|
|
|
997 Vmark_even_if_inactive = Qnil;
|
|
|
998 #endif
|
|
|
999
|
|
|
1000 #if 0 /* Doesn't work and is totally ill-conceived anyway. */
|
|
|
1001 xxDEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook /*
|
|
|
1002 Hook to run when about to switch windows with a mouse command.
|
|
|
1003 Its purpose is to give temporary modes such as Isearch mode
|
|
|
1004 a way to turn themselves off when a mouse command switches windows.
|
|
|
1005 */ );
|
|
|
1006 Vmouse_leave_buffer_hook = Qnil;
|
|
|
1007 #endif
|
|
|
1008 }
|
