external/bsd/tmux/dist/cmd-set-option.c

   1 /* Id */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * Set an option.
  28  */
  29
  30 enum cmd_retval cmd_set_option_exec(struct cmd *, struct cmd_q *);
  31
  32 enum cmd_retval cmd_set_option_user(struct cmd *, struct cmd_q *,
  33             const char *, const char *);
  34
  35 int     cmd_set_option_unset(struct cmd *, struct cmd_q *,
  36             const struct options_table_entry *, struct options *,
  37             const char *);
  38 int     cmd_set_option_set(struct cmd *, struct cmd_q *,
  39             const struct options_table_entry *, struct options *,
  40             const char *);
  41
  42 struct options_entry *cmd_set_option_string(struct cmd *, struct cmd_q *,
  43             const struct options_table_entry *, struct options *,
  44             const char *);
  45 struct options_entry *cmd_set_option_number(struct cmd *, struct cmd_q *,
  46             const struct options_table_entry *, struct options *,
  47             const char *);
  48 struct options_entry *cmd_set_option_key(struct cmd *, struct cmd_q *,
  49             const struct options_table_entry *, struct options *,
  50             const char *);
  51 struct options_entry *cmd_set_option_colour(struct cmd *, struct cmd_q *,
  52             const struct options_table_entry *, struct options *,
  53             const char *);
  54 struct options_entry *cmd_set_option_attributes(struct cmd *, struct cmd_q *,
  55             const struct options_table_entry *, struct options *,
  56             const char *);
  57 struct options_entry *cmd_set_option_flag(struct cmd *, struct cmd_q *,
  58             const struct options_table_entry *, struct options *,
  59             const char *);
  60 struct options_entry *cmd_set_option_choice(struct cmd *, struct cmd_q *,
  61             const struct options_table_entry *, struct options *,
  62             const char *);
  63 struct options_entry *cmd_set_option_style(struct cmd *, struct cmd_q *,
  64             const struct options_table_entry *, struct options *,
  65             const char *);
  66
  67 const struct cmd_entry cmd_set_option_entry = {
  68         "set-option", "set",
  69         "agoqst:uw", 1, 2,
  70         "[-agosquw] [-t target-session|target-window] option [value]",
  71         0,
  72         NULL,
  73         cmd_set_option_exec
  74 };
  75
  76 const struct cmd_entry cmd_set_window_option_entry = {
  77         "set-window-option", "setw",
  78         "agoqt:u", 1, 2,
  79         "[-agoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
  80         0,
  81         NULL,
  82         cmd_set_option_exec
  83 };
  84
  85 enum cmd_retval
  86 cmd_set_option_exec(struct cmd *self, struct cmd_q *cmdq)
  87 {
  88         struct args                             *args = self->args;
  89         const struct options_table_entry        *table, *oe;
  90         struct session                          *s;
  91         struct winlink                          *wl;
  92         struct client                           *c;
  93         struct options                          *oo;
  94         struct window                           *w;
  95         const char                              *optstr, *valstr;
  96         u_int                                    i;
  97
  98         /* Get the option name and value. */
  99         optstr = args->argv[0];
 100         if (*optstr == '\0') {
 101                 cmdq_error(cmdq, "invalid option");
 102                 return (CMD_RETURN_ERROR);
 103         }
 104         if (args->argc < 2)
 105                 valstr = NULL;
 106         else
 107                 valstr = args->argv[1];
 108
 109         /* Is this a user option? */
 110         if (*optstr == '@')
 111                 return (cmd_set_option_user(self, cmdq, optstr, valstr));
 112
 113         /* Find the option entry, try each table. */
 114         table = oe = NULL;
 115         if (options_table_find(optstr, &table, &oe) != 0) {
 116                 cmdq_error(cmdq, "ambiguous option: %s", optstr);
 117                 return (CMD_RETURN_ERROR);
 118         }
 119         if (oe == NULL) {
 120                 cmdq_error(cmdq, "unknown option: %s", optstr);
 121                 return (CMD_RETURN_ERROR);
 122         }
 123
 124         /* Work out the tree from the table. */
 125         if (table == server_options_table)
 126                 oo = &global_options;
 127         else if (table == window_options_table) {
 128                 if (args_has(self->args, 'g'))
 129                         oo = &global_w_options;
 130                 else {
 131                         wl = cmd_find_window(cmdq, args_get(args, 't'), NULL);
 132                         if (wl == NULL) {
 133                                 cmdq_error(cmdq,
 134                                     "couldn't set '%s'%s", optstr,
 135                                     (!args_has(args, 't') && !args_has(args,
 136                                     'g')) ? " need target window or -g" : "");
 137                                 return (CMD_RETURN_ERROR);
 138                         }
 139                         oo = &wl->window->options;
 140                 }
 141         } else if (table == session_options_table) {
 142                 if (args_has(self->args, 'g'))
 143                         oo = &global_s_options;
 144                 else {
 145                         s = cmd_find_session(cmdq, args_get(args, 't'), 0);
 146                         if (s == NULL) {
 147                                 cmdq_error(cmdq,
 148                                     "couldn't set '%s'%s", optstr,
 149                                     (!args_has(args, 't') && !args_has(args,
 150                                     'g')) ? " need target session or -g" : "");
 151                                 return (CMD_RETURN_ERROR);
 152                         }
 153                         oo = &s->options;
 154                 }
 155         } else {
 156                 cmdq_error(cmdq, "unknown table");
 157                 return (CMD_RETURN_ERROR);
 158         }
 159
 160         /* Unset or set the option. */
 161         if (args_has(args, 'u')) {
 162                 if (cmd_set_option_unset(self, cmdq, oe, oo, valstr) != 0)
 163                         return (CMD_RETURN_ERROR);
 164         } else {
 165                 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) {
 166                         if (!args_has(args, 'q'))
 167                                 cmdq_print(cmdq, "already set: %s", optstr);
 168                         return (CMD_RETURN_NORMAL);
 169                 }
 170                 if (cmd_set_option_set(self, cmdq, oe, oo, valstr) != 0)
 171                         return (CMD_RETURN_ERROR);
 172         }
 173
 174         /* Start or stop timers when automatic-rename changed. */
 175         if (strcmp(oe->name, "automatic-rename") == 0) {
 176                 for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
 177                         if ((w = ARRAY_ITEM(&windows, i)) == NULL)
 178                                 continue;
 179                         if (options_get_number(&w->options, "automatic-rename"))
 180                                 queue_window_name(w);
 181                         else if (event_initialized(&w->name_timer))
 182                                 evtimer_del(&w->name_timer);
 183                 }
 184         }
 185
 186         /* Update sizes and redraw. May not need it but meh. */
 187         recalculate_sizes();
 188         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 189                 c = ARRAY_ITEM(&clients, i);
 190                 if (c != NULL && c->session != NULL)
 191                         server_redraw_client(c);
 192         }
 193
 194         return (CMD_RETURN_NORMAL);
 195 }
 196
 197 /* Set user option. */
 198 enum cmd_retval
 199 cmd_set_option_user(struct cmd *self, struct cmd_q *cmdq, const char* optstr,
 200     const char *valstr)
 201 {
 202         struct args     *args = self->args;
 203         struct session  *s;
 204         struct winlink  *wl;
 205         struct options  *oo;
 206
 207         if (args_has(args, 's'))
 208                 oo = &global_options;
 209         else if (args_has(self->args, 'w') ||
 210             self->entry == &cmd_set_window_option_entry) {
 211                 if (args_has(self->args, 'g'))
 212                         oo = &global_w_options;
 213                 else {
 214                         wl = cmd_find_window(cmdq, args_get(args, 't'), NULL);
 215                         if (wl == NULL)
 216                                 return (CMD_RETURN_ERROR);
 217                         oo = &wl->window->options;
 218                 }
 219         } else {
 220                 if (args_has(self->args, 'g'))
 221                         oo = &global_s_options;
 222                 else {
 223                         s = cmd_find_session(cmdq, args_get(args, 't'), 0);
 224                         if (s == NULL)
 225                                 return (CMD_RETURN_ERROR);
 226                         oo = &s->options;
 227                 }
 228         }
 229
 230         if (args_has(args, 'u')) {
 231                 if (options_find1(oo, optstr) == NULL) {
 232                         cmdq_error(cmdq, "unknown option: %s", optstr);
 233                         return (CMD_RETURN_ERROR);
 234                 }
 235                 if (valstr != NULL) {
 236                         cmdq_error(cmdq, "value passed to unset option: %s",
 237                             optstr);
 238                         return (CMD_RETURN_ERROR);
 239                 }
 240                 options_remove(oo, optstr);
 241         } else {
 242                 if (valstr == NULL) {
 243                         cmdq_error(cmdq, "empty value");
 244                         return (CMD_RETURN_ERROR);
 245                 }
 246                 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) {
 247                         if (!args_has(args, 'q'))
 248                                 cmdq_print(cmdq, "already set: %s", optstr);
 249                         return (CMD_RETURN_NORMAL);
 250                 }
 251                 options_set_string(oo, optstr, "%s", valstr);
 252                 if (!args_has(args, 'q')) {
 253                         cmdq_info(cmdq, "set option: %s -> %s", optstr,
 254                             valstr);
 255                 }
 256         }
 257         return (CMD_RETURN_NORMAL);
 258 }
 259
 260
 261 /* Unset an option. */
 262 int
 263 cmd_set_option_unset(struct cmd *self, struct cmd_q *cmdq,
 264     const struct options_table_entry *oe, struct options *oo, const char *value)
 265 {
 266         struct args     *args = self->args;
 267
 268         if (args_has(args, 'g')) {
 269                 cmdq_error(cmdq, "can't unset global option: %s", oe->name);
 270                 return (-1);
 271         }
 272         if (value != NULL) {
 273                 cmdq_error(cmdq, "value passed to unset option: %s", oe->name);
 274                 return (-1);
 275         }
 276
 277         options_remove(oo, oe->name);
 278         if (!args_has(args, 'q'))
 279                 cmdq_info(cmdq, "unset option: %s", oe->name);
 280         return (0);
 281 }
 282
 283 /* Set an option. */
 284 int
 285 cmd_set_option_set(struct cmd *self, struct cmd_q *cmdq,
 286     const struct options_table_entry *oe, struct options *oo, const char *value)
 287 {
 288         struct args             *args = self->args;
 289         struct options_entry    *o;
 290         const char              *s;
 291
 292         if (oe->type != OPTIONS_TABLE_FLAG && value == NULL) {
 293                 cmdq_error(cmdq, "empty value");
 294                 return (-1);
 295         }
 296
 297         o = NULL;
 298         switch (oe->type) {
 299         case OPTIONS_TABLE_STRING:
 300                 o = cmd_set_option_string(self, cmdq, oe, oo, value);
 301                 break;
 302         case OPTIONS_TABLE_NUMBER:
 303                 o = cmd_set_option_number(self, cmdq, oe, oo, value);
 304                 break;
 305         case OPTIONS_TABLE_KEY:
 306                 o = cmd_set_option_key(self, cmdq, oe, oo, value);
 307                 break;
 308         case OPTIONS_TABLE_COLOUR:
 309                 o = cmd_set_option_colour(self, cmdq, oe, oo, value);
 310                 if (o != NULL)
 311                         style_update_new(oo, o->name, oe->style);
 312                 break;
 313         case OPTIONS_TABLE_ATTRIBUTES:
 314                 o = cmd_set_option_attributes(self, cmdq, oe, oo, value);
 315                 if (o != NULL)
 316                         style_update_new(oo, o->name, oe->style);
 317                 break;
 318         case OPTIONS_TABLE_FLAG:
 319                 o = cmd_set_option_flag(self, cmdq, oe, oo, value);
 320                 break;
 321         case OPTIONS_TABLE_CHOICE:
 322                 o = cmd_set_option_choice(self, cmdq, oe, oo, value);
 323                 break;
 324         case OPTIONS_TABLE_STYLE:
 325                 o = cmd_set_option_style(self, cmdq, oe, oo, value);
 326                 break;
 327         }
 328         if (o == NULL)
 329                 return (-1);
 330
 331         s = options_table_print_entry(oe, o, 0);
 332         if (!args_has(args, 'q'))
 333                 cmdq_info(cmdq, "set option: %s -> %s", oe->name, s);
 334         return (0);
 335 }
 336
 337 /* Set a string option. */
 338 struct options_entry *
 339 cmd_set_option_string(struct cmd *self, unused struct cmd_q *cmdq,
 340     const struct options_table_entry *oe, struct options *oo, const char *value)
 341 {
 342         struct args             *args = self->args;
 343         struct options_entry    *o;
 344         char                    *oldval, *newval;
 345
 346         if (args_has(args, 'a')) {
 347                 oldval = options_get_string(oo, oe->name);
 348                 xasprintf(&newval, "%s%s", oldval, value);
 349         } else
 350                 newval = xstrdup(value);
 351
 352         o = options_set_string(oo, oe->name, "%s", newval);
 353
 354         free(newval);
 355         return (o);
 356 }
 357
 358 /* Set a number option. */
 359 struct options_entry *
 360 cmd_set_option_number(unused struct cmd *self, struct cmd_q *cmdq,
 361     const struct options_table_entry *oe, struct options *oo, const char *value)
 362 {
 363         long long        ll;
 364         const char      *errstr;
 365
 366         ll = strtonum(value, oe->minimum, oe->maximum, &errstr);
 367         if (errstr != NULL) {
 368                 cmdq_error(cmdq, "value is %s: %s", errstr, value);
 369                 return (NULL);
 370         }
 371
 372         return (options_set_number(oo, oe->name, ll));
 373 }
 374
 375 /* Set a key option. */
 376 struct options_entry *
 377 cmd_set_option_key(unused struct cmd *self, struct cmd_q *cmdq,
 378     const struct options_table_entry *oe, struct options *oo, const char *value)
 379 {
 380         int     key;
 381
 382         if ((key = key_string_lookup_string(value)) == KEYC_NONE) {
 383                 cmdq_error(cmdq, "bad key: %s", value);
 384                 return (NULL);
 385         }
 386
 387         return (options_set_number(oo, oe->name, key));
 388 }
 389
 390 /* Set a colour option. */
 391 struct options_entry *
 392 cmd_set_option_colour(unused struct cmd *self, struct cmd_q *cmdq,
 393     const struct options_table_entry *oe, struct options *oo, const char *value)
 394 {
 395         int     colour;
 396
 397         if ((colour = colour_fromstring(value)) == -1) {
 398                 cmdq_error(cmdq, "bad colour: %s", value);
 399                 return (NULL);
 400         }
 401
 402         return (options_set_number(oo, oe->name, colour));
 403 }
 404
 405 /* Set an attributes option. */
 406 struct options_entry *
 407 cmd_set_option_attributes(unused struct cmd *self, struct cmd_q *cmdq,
 408     const struct options_table_entry *oe, struct options *oo, const char *value)
 409 {
 410         int     attr;
 411
 412         if ((attr = attributes_fromstring(value)) == -1) {
 413                 cmdq_error(cmdq, "bad attributes: %s", value);
 414                 return (NULL);
 415         }
 416
 417         return (options_set_number(oo, oe->name, attr));
 418 }
 419
 420 /* Set a flag option. */
 421 struct options_entry *
 422 cmd_set_option_flag(unused struct cmd *self, struct cmd_q *cmdq,
 423     const struct options_table_entry *oe, struct options *oo, const char *value)
 424 {
 425         int     flag;
 426
 427         if (value == NULL || *value == '\0')
 428                 flag = !options_get_number(oo, oe->name);
 429         else {
 430                 if ((value[0] == '1' && value[1] == '\0') ||
 431                     strcasecmp(value, "on") == 0 ||
 432                     strcasecmp(value, "yes") == 0)
 433                         flag = 1;
 434                 else if ((value[0] == '0' && value[1] == '\0') ||
 435                     strcasecmp(value, "off") == 0 ||
 436                     strcasecmp(value, "no") == 0)
 437                         flag = 0;
 438                 else {
 439                         cmdq_error(cmdq, "bad value: %s", value);
 440                         return (NULL);
 441                 }
 442         }
 443
 444         return (options_set_number(oo, oe->name, flag));
 445 }
 446
 447 /* Set a choice option. */
 448 struct options_entry *
 449 cmd_set_option_choice(unused struct cmd *self, struct cmd_q *cmdq,
 450     const struct options_table_entry *oe, struct options *oo,
 451     const char *value)
 452 {
 453         const char      **choicep;
 454         int               n, choice = -1;
 455
 456         n = 0;
 457         for (choicep = oe->choices; *choicep != NULL; choicep++) {
 458                 n++;
 459                 if (strncmp(*choicep, value, strlen(value)) != 0)
 460                         continue;
 461
 462                 if (choice != -1) {
 463                         cmdq_error(cmdq, "ambiguous value: %s", value);
 464                         return (NULL);
 465                 }
 466                 choice = n - 1;
 467         }
 468         if (choice == -1) {
 469                 cmdq_error(cmdq, "unknown value: %s", value);
 470                 return (NULL);
 471         }
 472
 473         return (options_set_number(oo, oe->name, choice));
 474 }
 475
 476 /* Set a style option. */
 477 struct options_entry *
 478 cmd_set_option_style(struct cmd *self, struct cmd_q *cmdq,
 479     const struct options_table_entry *oe, struct options *oo,
 480     const char *value)
 481 {
 482         struct args             *args = self->args;
 483         struct options_entry    *o;
 484         int                      append;
 485
 486         append = args_has(args, 'a');
 487         if ((o = options_set_style(oo, oe->name, value, append)) == NULL) {
 488                 cmdq_error(cmdq, "bad style: %s", value);
 489                 return (NULL);
 490         }
 491
 492         style_update_old(oo, oe->name, &o->style);
 493         return (o);
 494 }