| 1 | /* Keyboard macros. |
| 2 | Copyright (C) 1985, 1986, 1993, 2000, 2001 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include "lisp.h" |
| 24 | #include "macros.h" |
| 25 | #include "commands.h" |
| 26 | #include "buffer.h" |
| 27 | #include "window.h" |
| 28 | #include "keyboard.h" |
| 29 | #include "keymap.h" |
| 30 | |
| 31 | Lisp_Object Qexecute_kbd_macro, Qkbd_macro_termination_hook; |
| 32 | |
| 33 | /* Kbd macro currently being executed (a string or vector). */ |
| 34 | |
| 35 | Lisp_Object Vexecuting_macro; |
| 36 | |
| 37 | /* Index of next character to fetch from that macro. */ |
| 38 | |
| 39 | int executing_macro_index; |
| 40 | |
| 41 | /* Number of successful iterations so far |
| 42 | for innermost keyboard macro. |
| 43 | This is not bound at each level, |
| 44 | so after an error, it describes the innermost interrupted macro. */ |
| 45 | |
| 46 | int executing_macro_iterations; |
| 47 | |
| 48 | /* This is the macro that was executing. |
| 49 | This is not bound at each level, |
| 50 | so after an error, it describes the innermost interrupted macro. |
| 51 | We use it only as a kind of flag, so no need to protect it. */ |
| 52 | |
| 53 | Lisp_Object executing_macro; |
| 54 | |
| 55 | extern Lisp_Object real_this_command; |
| 56 | |
| 57 | Lisp_Object Fexecute_kbd_macro (); |
| 58 | \f |
| 59 | DEFUN ("start-kbd-macro", Fstart_kbd_macro, Sstart_kbd_macro, 1, 1, "P", |
| 60 | "Record subsequent keyboard input, defining a keyboard macro.\n\ |
| 61 | The commands are recorded even as they are executed.\n\ |
| 62 | Use \\[end-kbd-macro] to finish recording and make the macro available.\n\ |
| 63 | Use \\[name-last-kbd-macro] to give it a permanent name.\n\ |
| 64 | Non-nil arg (prefix arg) means append to last macro defined;\n\ |
| 65 | this begins by re-executing that macro as if you typed it again.") |
| 66 | (append) |
| 67 | Lisp_Object append; |
| 68 | { |
| 69 | if (!NILP (current_kboard->defining_kbd_macro)) |
| 70 | error ("Already defining kbd macro"); |
| 71 | |
| 72 | if (!current_kboard->kbd_macro_buffer) |
| 73 | { |
| 74 | current_kboard->kbd_macro_bufsize = 30; |
| 75 | current_kboard->kbd_macro_buffer |
| 76 | = (Lisp_Object *)xmalloc (30 * sizeof (Lisp_Object)); |
| 77 | } |
| 78 | update_mode_lines++; |
| 79 | if (NILP (append)) |
| 80 | { |
| 81 | if (current_kboard->kbd_macro_bufsize > 200) |
| 82 | { |
| 83 | current_kboard->kbd_macro_bufsize = 30; |
| 84 | current_kboard->kbd_macro_buffer |
| 85 | = (Lisp_Object *)xrealloc (current_kboard->kbd_macro_buffer, |
| 86 | 30 * sizeof (Lisp_Object)); |
| 87 | } |
| 88 | current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer; |
| 89 | current_kboard->kbd_macro_end = current_kboard->kbd_macro_buffer; |
| 90 | message ("Defining kbd macro..."); |
| 91 | } |
| 92 | else |
| 93 | { |
| 94 | int i, len; |
| 95 | |
| 96 | /* Check the type of last-kbd-macro in case Lisp code changed it. */ |
| 97 | if (!STRINGP (current_kboard->Vlast_kbd_macro) |
| 98 | && !VECTORP (current_kboard->Vlast_kbd_macro)) |
| 99 | current_kboard->Vlast_kbd_macro |
| 100 | = wrong_type_argument (Qarrayp, current_kboard->Vlast_kbd_macro); |
| 101 | |
| 102 | len = XINT (Flength (current_kboard->Vlast_kbd_macro)); |
| 103 | |
| 104 | /* Copy last-kbd-macro into the buffer, in case the Lisp code |
| 105 | has put another macro there. */ |
| 106 | if (current_kboard->kbd_macro_bufsize < len + 30) |
| 107 | { |
| 108 | current_kboard->kbd_macro_bufsize = len + 30; |
| 109 | current_kboard->kbd_macro_buffer |
| 110 | = (Lisp_Object *)xrealloc (current_kboard->kbd_macro_buffer, |
| 111 | (len + 30) * sizeof (Lisp_Object)); |
| 112 | } |
| 113 | for (i = 0; i < len; i++) |
| 114 | current_kboard->kbd_macro_buffer[i] |
| 115 | = Faref (current_kboard->Vlast_kbd_macro, make_number (i)); |
| 116 | |
| 117 | current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer + len; |
| 118 | current_kboard->kbd_macro_end = current_kboard->kbd_macro_ptr; |
| 119 | |
| 120 | /* Re-execute the macro we are appending to, |
| 121 | for consistency of behavior. */ |
| 122 | Fexecute_kbd_macro (current_kboard->Vlast_kbd_macro, |
| 123 | make_number (1)); |
| 124 | |
| 125 | message ("Appending to kbd macro..."); |
| 126 | } |
| 127 | current_kboard->defining_kbd_macro = Qt; |
| 128 | |
| 129 | return Qnil; |
| 130 | } |
| 131 | |
| 132 | DEFUN ("end-kbd-macro", Fend_kbd_macro, Send_kbd_macro, 0, 1, "p", |
| 133 | "Finish defining a keyboard macro.\n\ |
| 134 | The definition was started by \\[start-kbd-macro].\n\ |
| 135 | The macro is now available for use via \\[call-last-kbd-macro],\n\ |
| 136 | or it can be given a name with \\[name-last-kbd-macro] and then invoked\n\ |
| 137 | under that name.\n\ |
| 138 | \n\ |
| 139 | With numeric arg, repeat macro now that many times,\n\ |
| 140 | counting the definition just completed as the first repetition.\n\ |
| 141 | An argument of zero means repeat until error.") |
| 142 | (repeat) |
| 143 | Lisp_Object repeat; |
| 144 | { |
| 145 | if (NILP (current_kboard->defining_kbd_macro)) |
| 146 | error ("Not defining kbd macro"); |
| 147 | |
| 148 | if (NILP (repeat)) |
| 149 | XSETFASTINT (repeat, 1); |
| 150 | else |
| 151 | CHECK_NUMBER (repeat, 0); |
| 152 | |
| 153 | if (!NILP (current_kboard->defining_kbd_macro)) |
| 154 | { |
| 155 | current_kboard->defining_kbd_macro = Qnil; |
| 156 | update_mode_lines++; |
| 157 | current_kboard->Vlast_kbd_macro |
| 158 | = make_event_array ((current_kboard->kbd_macro_end |
| 159 | - current_kboard->kbd_macro_buffer), |
| 160 | current_kboard->kbd_macro_buffer); |
| 161 | message ("Keyboard macro defined"); |
| 162 | } |
| 163 | |
| 164 | if (XFASTINT (repeat) == 0) |
| 165 | Fexecute_kbd_macro (current_kboard->Vlast_kbd_macro, repeat); |
| 166 | else |
| 167 | { |
| 168 | XSETINT (repeat, XINT (repeat)-1); |
| 169 | if (XINT (repeat) > 0) |
| 170 | Fexecute_kbd_macro (current_kboard->Vlast_kbd_macro, repeat); |
| 171 | } |
| 172 | return Qnil; |
| 173 | } |
| 174 | |
| 175 | /* Store character c into kbd macro being defined */ |
| 176 | |
| 177 | void |
| 178 | store_kbd_macro_char (c) |
| 179 | Lisp_Object c; |
| 180 | { |
| 181 | struct kboard *kb = current_kboard; |
| 182 | |
| 183 | if (!NILP (kb->defining_kbd_macro)) |
| 184 | { |
| 185 | if (kb->kbd_macro_ptr - kb->kbd_macro_buffer == kb->kbd_macro_bufsize) |
| 186 | { |
| 187 | int ptr_offset, end_offset, nbytes; |
| 188 | |
| 189 | ptr_offset = kb->kbd_macro_ptr - kb->kbd_macro_buffer; |
| 190 | end_offset = kb->kbd_macro_end - kb->kbd_macro_buffer; |
| 191 | kb->kbd_macro_bufsize *= 2; |
| 192 | nbytes = kb->kbd_macro_bufsize * sizeof *kb->kbd_macro_buffer; |
| 193 | kb->kbd_macro_buffer |
| 194 | = (Lisp_Object *) xrealloc (kb->kbd_macro_buffer, nbytes); |
| 195 | kb->kbd_macro_ptr = kb->kbd_macro_buffer + ptr_offset; |
| 196 | kb->kbd_macro_end = kb->kbd_macro_buffer + end_offset; |
| 197 | } |
| 198 | |
| 199 | *kb->kbd_macro_ptr++ = c; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /* Declare that all chars stored so far in the kbd macro being defined |
| 204 | really belong to it. This is done in between editor commands. */ |
| 205 | |
| 206 | void |
| 207 | finalize_kbd_macro_chars () |
| 208 | { |
| 209 | current_kboard->kbd_macro_end = current_kboard->kbd_macro_ptr; |
| 210 | } |
| 211 | |
| 212 | DEFUN ("cancel-kbd-macro-events", Fcancel_kbd_macro_events, |
| 213 | Scancel_kbd_macro_events, 0, 0, 0, |
| 214 | "Cancel the events added to a keyboard macro for this command.") |
| 215 | () |
| 216 | { |
| 217 | current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_end; |
| 218 | return Qnil; |
| 219 | } |
| 220 | |
| 221 | DEFUN ("store-kbd-macro-event", Fstore_kbd_macro_event, |
| 222 | Sstore_kbd_macro_event, 1, 1, 0, |
| 223 | "Store EVENT into the keyboard macro being defined.") |
| 224 | (event) |
| 225 | Lisp_Object event; |
| 226 | { |
| 227 | store_kbd_macro_char (event); |
| 228 | return Qnil; |
| 229 | } |
| 230 | \f |
| 231 | DEFUN ("call-last-kbd-macro", Fcall_last_kbd_macro, Scall_last_kbd_macro, |
| 232 | 0, 1, "p", |
| 233 | "Call the last keyboard macro that you defined with \\[start-kbd-macro].\n\ |
| 234 | \n\ |
| 235 | A prefix argument serves as a repeat count. Zero means repeat until error.\n\ |
| 236 | \n\ |
| 237 | To make a macro permanent so you can call it even after\n\ |
| 238 | defining others, use \\[name-last-kbd-macro].") |
| 239 | (prefix) |
| 240 | Lisp_Object prefix; |
| 241 | { |
| 242 | /* Don't interfere with recognition of the previous command |
| 243 | from before this macro started. */ |
| 244 | Vthis_command = current_kboard->Vlast_command; |
| 245 | /* C-x z after the macro should repeat the macro. */ |
| 246 | real_this_command = current_kboard->Vlast_kbd_macro; |
| 247 | |
| 248 | if (! NILP (current_kboard->defining_kbd_macro)) |
| 249 | error ("Can't execute anonymous macro while defining one"); |
| 250 | else if (NILP (current_kboard->Vlast_kbd_macro)) |
| 251 | error ("No kbd macro has been defined"); |
| 252 | else |
| 253 | Fexecute_kbd_macro (current_kboard->Vlast_kbd_macro, prefix); |
| 254 | |
| 255 | /* command_loop_1 sets this to nil before it returns; |
| 256 | get back the last command within the macro |
| 257 | so that it can be last, again, after we return. */ |
| 258 | Vthis_command = current_kboard->Vlast_command; |
| 259 | |
| 260 | return Qnil; |
| 261 | } |
| 262 | |
| 263 | /* Restore Vexecuting_macro and executing_macro_index - called when |
| 264 | the unwind-protect in Fexecute_kbd_macro gets invoked. */ |
| 265 | |
| 266 | static Lisp_Object |
| 267 | pop_kbd_macro (info) |
| 268 | Lisp_Object info; |
| 269 | { |
| 270 | Lisp_Object tem; |
| 271 | Vexecuting_macro = XCAR (info); |
| 272 | tem = XCDR (info); |
| 273 | executing_macro_index = XINT (XCAR (tem)); |
| 274 | real_this_command = XCDR (tem); |
| 275 | Frun_hooks (1, &Qkbd_macro_termination_hook); |
| 276 | return Qnil; |
| 277 | } |
| 278 | |
| 279 | DEFUN ("execute-kbd-macro", Fexecute_kbd_macro, Sexecute_kbd_macro, 1, 2, 0, |
| 280 | "Execute MACRO as string of editor command characters.\n\ |
| 281 | If MACRO is a symbol, its function definition is used.\n\ |
| 282 | COUNT is a repeat count, or nil for once, or 0 for infinite loop.") |
| 283 | (macro, count) |
| 284 | Lisp_Object macro, count; |
| 285 | { |
| 286 | Lisp_Object final; |
| 287 | Lisp_Object tem; |
| 288 | int pdlcount = specpdl_ptr - specpdl; |
| 289 | int repeat = 1; |
| 290 | struct gcpro gcpro1; |
| 291 | int success_count = 0; |
| 292 | |
| 293 | executing_macro_iterations = 0; |
| 294 | |
| 295 | if (!NILP (count)) |
| 296 | { |
| 297 | count = Fprefix_numeric_value (count); |
| 298 | repeat = XINT (count); |
| 299 | } |
| 300 | |
| 301 | final = indirect_function (macro); |
| 302 | if (!STRINGP (final) && !VECTORP (final)) |
| 303 | error ("Keyboard macros must be strings or vectors"); |
| 304 | |
| 305 | tem = Fcons (Vexecuting_macro, |
| 306 | Fcons (make_number (executing_macro_index), |
| 307 | real_this_command)); |
| 308 | record_unwind_protect (pop_kbd_macro, tem); |
| 309 | |
| 310 | GCPRO1 (final); |
| 311 | do |
| 312 | { |
| 313 | Vexecuting_macro = final; |
| 314 | executing_macro = final; |
| 315 | executing_macro_index = 0; |
| 316 | |
| 317 | current_kboard->Vprefix_arg = Qnil; |
| 318 | command_loop_1 (); |
| 319 | |
| 320 | executing_macro_iterations = ++success_count; |
| 321 | |
| 322 | QUIT; |
| 323 | } |
| 324 | while (--repeat |
| 325 | && (STRINGP (Vexecuting_macro) || VECTORP (Vexecuting_macro))); |
| 326 | |
| 327 | executing_macro = Qnil; |
| 328 | |
| 329 | real_this_command = Vexecuting_macro; |
| 330 | |
| 331 | UNGCPRO; |
| 332 | return unbind_to (pdlcount, Qnil); |
| 333 | } |
| 334 | \f |
| 335 | void |
| 336 | init_macros () |
| 337 | { |
| 338 | Vexecuting_macro = Qnil; |
| 339 | executing_macro = Qnil; |
| 340 | } |
| 341 | |
| 342 | void |
| 343 | syms_of_macros () |
| 344 | { |
| 345 | Qexecute_kbd_macro = intern ("execute-kbd-macro"); |
| 346 | staticpro (&Qexecute_kbd_macro); |
| 347 | Qkbd_macro_termination_hook = intern ("kbd-macro-termination-hook"); |
| 348 | staticpro (&Qkbd_macro_termination_hook); |
| 349 | |
| 350 | defsubr (&Sstart_kbd_macro); |
| 351 | defsubr (&Send_kbd_macro); |
| 352 | defsubr (&Scall_last_kbd_macro); |
| 353 | defsubr (&Sexecute_kbd_macro); |
| 354 | defsubr (&Scancel_kbd_macro_events); |
| 355 | defsubr (&Sstore_kbd_macro_event); |
| 356 | |
| 357 | DEFVAR_KBOARD ("defining-kbd-macro", defining_kbd_macro, |
| 358 | "Non-nil while a keyboard macro is being defined. Don't set this!"); |
| 359 | |
| 360 | DEFVAR_LISP ("executing-macro", &Vexecuting_macro, |
| 361 | "Currently executing keyboard macro (string or vector); nil if none executing."); |
| 362 | |
| 363 | DEFVAR_LISP_NOPRO ("executing-kbd-macro", &Vexecuting_macro, |
| 364 | "Currently executing keyboard macro (string or vector); nil if none executing."); |
| 365 | |
| 366 | DEFVAR_KBOARD ("last-kbd-macro", Vlast_kbd_macro, |
| 367 | "Last kbd macro defined, as a string or vector; nil if none defined."); |
| 368 | } |
| 369 | |
| 370 | void |
| 371 | keys_of_macros () |
| 372 | { |
| 373 | initial_define_key (control_x_map, ('e'), "call-last-kbd-macro"); |
| 374 | initial_define_key (control_x_map, ('('), "start-kbd-macro"); |
| 375 | initial_define_key (control_x_map, (')'), "end-kbd-macro"); |
| 376 | } |