git.sur5r.net Git - i3/i3/blob - src/config.c

   1 /*
   2  * vim:ts=8:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  *
   6  * © 2009 Michael Stapelberg and contributors
   7  *
   8  * See file LICENSE for license information.
   9  *
  10  */
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <sys/stat.h>
  14 #include <stdlib.h>
  15 #include <glob.h>
  16
  17 /* We need Xlib for XStringToKeysym */
  18 #include <X11/Xlib.h>
  19
  20 #include <xcb/xcb_keysyms.h>
  21
  22 #include "i3.h"
  23 #include "util.h"
  24 #include "config.h"
  25 #include "xcb.h"
  26 #include "table.h"
  27 #include "workspace.h"
  28
  29 /* prototype for src/cfgparse.y, will be cleaned up as soon as we completely
  30  * switched to the new scanner/parser. */
  31 void parse_file(const char *f);
  32
  33 Config config;
  34 struct modes_head modes;
  35
  36 bool config_use_lexer = false;
  37
  38 /*
  39  * This function resolves ~ in pathnames.
  40  *
  41  */
  42 static char *glob_path(const char *path) {
  43         static glob_t globbuf;
  44         if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
  45                 die("glob() failed");
  46         char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
  47         globfree(&globbuf);
  48         return result;
  49 }
  50
  51 /*
  52  * This function does a very simple replacement of each instance of key with value.
  53  *
  54  */
  55 static void replace_variable(char *buffer, const char *key, const char *value) {
  56         char *pos;
  57         /* To prevent endless recursions when the user makes an error configuring,
  58          * we stop after 100 replacements. That should be vastly more than enough. */
  59         int c = 0;
  60         while ((pos = strcasestr(buffer, key)) != NULL && c++ < 100) {
  61                 char *rest = pos + strlen(key);
  62                 *pos = '\0';
  63                 char *replaced;
  64                 asprintf(&replaced, "%s%s%s", buffer, value, rest);
  65                 /* Hm, this is a bit ugly, but sizeof(buffer) = 4, as it’s just a pointer.
  66                  * So we need to hard-code the dimensions here. */
  67                 strncpy(buffer, replaced, 1026);
  68                 free(replaced);
  69         }
  70 }
  71
  72 /**
  73  * Ungrabs all keys, to be called before re-grabbing the keys because of a
  74  * mapping_notify event or a configuration file reload
  75  *
  76  */
  77 void ungrab_all_keys(xcb_connection_t *conn) {
  78         LOG("Ungrabbing all keys\n");
  79         xcb_ungrab_key(conn, XCB_GRAB_ANY, root, XCB_BUTTON_MASK_ANY);
  80 }
  81
  82 static void grab_keycode_for_binding(xcb_connection_t *conn, Binding *bind, uint32_t keycode) {
  83         LOG("Grabbing %d\n", keycode);
  84         if ((bind->mods & BIND_MODE_SWITCH) != 0)
  85                 xcb_grab_key(conn, 0, root, 0, keycode,
  86                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_SYNC);
  87         else {
  88                 /* Grab the key in all combinations */
  89                 #define GRAB_KEY(modifier) xcb_grab_key(conn, 0, root, modifier, keycode, \
  90                                                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC)
  91                 GRAB_KEY(bind->mods);
  92                 GRAB_KEY(bind->mods | xcb_numlock_mask);
  93                 GRAB_KEY(bind->mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
  94         }
  95 }
  96
  97 /*
  98  * Grab the bound keys (tell X to send us keypress events for those keycodes)
  99  *
 100  */
 101 void grab_all_keys(xcb_connection_t *conn) {
 102         Binding *bind;
 103         TAILQ_FOREACH(bind, bindings, bindings) {
 104                 /* The easy case: the user specified a keycode directly. */
 105                 if (bind->keycode > 0) {
 106                         grab_keycode_for_binding(conn, bind, bind->keycode);
 107                         continue;
 108                 }
 109
 110                 /* We need to translate the symbol to a keycode */
 111                 xcb_keysym_t keysym = XStringToKeysym(bind->symbol);
 112                 if (keysym == NoSymbol) {
 113                         LOG("Could not translate string to key symbol: \"%s\"\n", bind->symbol);
 114                         continue;
 115                 }
 116
 117                 xcb_keycode_t *keycodes = xcb_key_symbols_get_keycode(keysyms, keysym);
 118                 if (keycodes == NULL) {
 119                         LOG("Could not translate symbol \"%s\"\n", bind->symbol);
 120                         continue;
 121                 }
 122
 123                 uint32_t last_keycode = 0;
 124                 bind->number_keycodes = 0;
 125                 for (xcb_keycode_t *walk = keycodes; *walk != 0; walk++) {
 126                         /* We hope duplicate keycodes will be returned in order
 127                          * and skip them */
 128                         if (last_keycode == *walk)
 129                                 continue;
 130                         grab_keycode_for_binding(conn, bind, *walk);
 131                         last_keycode = *walk;
 132                         bind->number_keycodes++;
 133                 }
 134                 LOG("Translated symbol \"%s\" to %d keycode\n", bind->symbol, bind->number_keycodes);
 135                 bind->translated_to = smalloc(bind->number_keycodes * sizeof(xcb_keycode_t));
 136                 memcpy(bind->translated_to, keycodes, bind->number_keycodes * sizeof(xcb_keycode_t));
 137                 free(keycodes);
 138         }
 139 }
 140
 141 /*
 142  * Switches the key bindings to the given mode, if the mode exists
 143  *
 144  */
 145 void switch_mode(xcb_connection_t *conn, const char *new_mode) {
 146         struct Mode *mode;
 147
 148         LOG("Switching to mode %s\n", new_mode);
 149
 150         SLIST_FOREACH(mode, &modes, modes) {
 151                 if (strcasecmp(mode->name, new_mode) != 0)
 152                         continue;
 153
 154                 ungrab_all_keys(conn);
 155                 bindings = mode->bindings;
 156                 grab_all_keys(conn);
 157                 return;
 158         }
 159
 160         LOG("ERROR: Mode not found\n");
 161 }
 162
 163 /*
 164  * Reads the configuration from ~/.i3/config or /etc/i3/config if not found.
 165  *
 166  * If you specify override_configpath, only this path is used to look for a
 167  * configuration file.
 168  *
 169  */
 170 void load_configuration(xcb_connection_t *conn, const char *override_configpath, bool reload) {
 171         if (reload) {
 172                 /* First ungrab the keys */
 173                 ungrab_all_keys(conn);
 174
 175                 struct Mode *mode;
 176                 Binding *bind;
 177                 while (!SLIST_EMPTY(&modes)) {
 178                         mode = SLIST_FIRST(&modes);
 179                         FREE(mode->name);
 180
 181                         /* Clear the old binding list */
 182                         bindings = mode->bindings;
 183                         while (!TAILQ_EMPTY(bindings)) {
 184                                 bind = TAILQ_FIRST(bindings);
 185                                 TAILQ_REMOVE(bindings, bind, bindings);
 186                                 FREE(bind->translated_to);
 187                                 FREE(bind->command);
 188                                 FREE(bind);
 189                         }
 190                         FREE(bindings);
 191                         SLIST_REMOVE(&modes, mode, Mode, modes);
 192                 }
 193
 194                 struct Assignment *assign;
 195                 while (!TAILQ_EMPTY(&assignments)) {
 196                         assign = TAILQ_FIRST(&assignments);
 197                         FREE(assign->windowclass_title);
 198                         TAILQ_REMOVE(&assignments, assign, assignments);
 199                         FREE(assign);
 200                 }
 201         }
 202
 203         SLIST_INIT(&modes);
 204
 205         struct Mode *default_mode = scalloc(sizeof(struct Mode));
 206         default_mode->name = sstrdup("default");
 207         default_mode->bindings = scalloc(sizeof(struct bindings_head));
 208         TAILQ_INIT(default_mode->bindings);
 209         SLIST_INSERT_HEAD(&modes, default_mode, modes);
 210
 211         bindings = default_mode->bindings;
 212
 213         SLIST_HEAD(variables_head, Variable) variables;
 214
 215 #define OPTION_STRING(name) \
 216         if (strcasecmp(key, #name) == 0) { \
 217                 config.name = sstrdup(value); \
 218                 continue; \
 219         }
 220
 221 #define REQUIRED_OPTION(name) \
 222         if (config.name == NULL) \
 223                 die("You did not specify required configuration option " #name "\n");
 224
 225 #define OPTION_COLORTRIPLE(opt, name) \
 226         if (strcasecmp(key, opt) == 0) { \
 227                 char border[8], background[8], text[8]; \
 228                 memset(border, 0, sizeof(border)); \
 229                 memset(background, 0, sizeof(background)); \
 230                 memset(text, 0, sizeof(text)); \
 231                 border[0] = background[0] = text[0] = '#'; \
 232                 if (sscanf(value, "#%06[0-9a-fA-F] #%06[0-9a-fA-F] #%06[0-9a-fA-F]", \
 233                     border + 1, background + 1, text + 1) != 3 || \
 234                     strlen(border) != 7 || \
 235                     strlen(background) != 7 || \
 236                     strlen(text) != 7) \
 237                         die("invalid color code line: %s\n", value); \
 238                 config.name.border = get_colorpixel(conn, border); \
 239                 config.name.background = get_colorpixel(conn, background); \
 240                 config.name.text = get_colorpixel(conn, text); \
 241                 continue; \
 242         }
 243
 244         /* Clear the old config or initialize the data structure */
 245         memset(&config, 0, sizeof(config));
 246
 247         SLIST_INIT(&variables);
 248
 249         /* Initialize default colors */
 250         config.client.focused.border = get_colorpixel(conn, "#4c7899");
 251         config.client.focused.background = get_colorpixel(conn, "#285577");
 252         config.client.focused.text = get_colorpixel(conn, "#ffffff");
 253
 254         config.client.focused_inactive.border = get_colorpixel(conn, "#4c7899");
 255         config.client.focused_inactive.background = get_colorpixel(conn, "#555555");
 256         config.client.focused_inactive.text = get_colorpixel(conn, "#ffffff");
 257
 258         config.client.unfocused.border = get_colorpixel(conn, "#333333");
 259         config.client.unfocused.background = get_colorpixel(conn, "#222222");
 260         config.client.unfocused.text = get_colorpixel(conn, "#888888");
 261
 262         config.client.urgent.border = get_colorpixel(conn, "#2f343a");
 263         config.client.urgent.background = get_colorpixel(conn, "#900000");
 264         config.client.urgent.text = get_colorpixel(conn, "#ffffff");
 265
 266         config.bar.focused.border = get_colorpixel(conn, "#4c7899");
 267         config.bar.focused.background = get_colorpixel(conn, "#285577");
 268         config.bar.focused.text = get_colorpixel(conn, "#ffffff");
 269
 270         config.bar.unfocused.border = get_colorpixel(conn, "#333333");
 271         config.bar.unfocused.background = get_colorpixel(conn, "#222222");
 272         config.bar.unfocused.text = get_colorpixel(conn, "#888888");
 273
 274         config.bar.urgent.border = get_colorpixel(conn, "#2f343a");
 275         config.bar.urgent.background = get_colorpixel(conn, "#900000");
 276         config.bar.urgent.text = get_colorpixel(conn, "#ffffff");
 277
 278         if (config_use_lexer) {
 279                 /* Yes, this will be cleaned up soon. */
 280                 if (override_configpath != NULL) {
 281                         parse_file(override_configpath);
 282                 } else {
 283                         FILE *handle;
 284                         char *globbed = glob_path("~/.i3/config");
 285                         if ((handle = fopen(globbed, "r")) == NULL) {
 286                                 if ((handle = fopen("/etc/i3/config", "r")) == NULL) {
 287                                         die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
 288                                 } else {
 289                                         parse_file("/etc/i3/config");
 290                                 }
 291                         } else {
 292                                 parse_file(globbed);
 293                         }
 294                 }
 295                 if (reload)
 296                         grab_all_keys(conn);
 297         } else {
 298
 299         FILE *handle;
 300         if (override_configpath != NULL) {
 301                 if ((handle = fopen(override_configpath, "r")) == NULL)
 302                         die("Could not open configfile \"%s\".\n", override_configpath);
 303         } else {
 304                 /* We first check for ~/.i3/config, then for /etc/i3/config */
 305                 char *globbed = glob_path("~/.i3/config");
 306                 if ((handle = fopen(globbed, "r")) == NULL)
 307                         if ((handle = fopen("/etc/i3/config", "r")) == NULL)
 308                                 die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
 309                 free(globbed);
 310         }
 311         char key[512], value[512], buffer[1026];
 312
 313         while (!feof(handle)) {
 314                 if (fgets(buffer, 1024, handle) == NULL) {
 315                         /* fgets returns NULL on EOF and on error, so see which one it is. */
 316                         if (feof(handle))
 317                                 break;
 318                         die("Could not read configuration file\n");
 319                 }
 320
 321                 if (config.terminal != NULL)
 322                         replace_variable(buffer, "$terminal", config.terminal);
 323
 324                 /* Replace all custom variables */
 325                 struct Variable *current;
 326                 SLIST_FOREACH(current, &variables, variables)
 327                         replace_variable(buffer, current->key, current->value);
 328
 329                 /* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
 330                 if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
 331                     key[0] == '#' || strlen(key) < 3)
 332                         continue;
 333
 334                 OPTION_STRING(terminal);
 335                 OPTION_STRING(font);
 336
 337                 /* Colors */
 338                 OPTION_COLORTRIPLE("client.focused", client.focused);
 339                 OPTION_COLORTRIPLE("client.focused_inactive", client.focused_inactive);
 340                 OPTION_COLORTRIPLE("client.unfocused", client.unfocused);
 341                 OPTION_COLORTRIPLE("client.urgent", client.urgent);
 342                 OPTION_COLORTRIPLE("bar.focused", bar.focused);
 343                 OPTION_COLORTRIPLE("bar.unfocused", bar.unfocused);
 344                 OPTION_COLORTRIPLE("bar.urgent", bar.urgent);
 345
 346                 /* exec-lines (autostart) */
 347                 if (strcasecmp(key, "exec") == 0) {
 348                         struct Autostart *new = smalloc(sizeof(struct Autostart));
 349                         new->command = sstrdup(value);
 350                         TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
 351                         continue;
 352                 }
 353
 354                 /* key bindings */
 355                 if (strcasecmp(key, "bind") == 0 || strcasecmp(key, "bindsym") == 0) {
 356                         #define CHECK_MODIFIER(name) \
 357                                 if (strncasecmp(walk, #name, strlen(#name)) == 0) { \
 358                                         modifiers |= BIND_##name; \
 359                                         walk += strlen(#name) + 1; \
 360                                         continue; \
 361                                 }
 362                         char *walk = value, *rest;
 363                         uint32_t modifiers = 0;
 364
 365                         while (*walk != '\0') {
 366                                 /* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
 367                                 CHECK_MODIFIER(SHIFT);
 368                                 CHECK_MODIFIER(CONTROL);
 369                                 CHECK_MODIFIER(MODE_SWITCH);
 370                                 CHECK_MODIFIER(MOD1);
 371                                 CHECK_MODIFIER(MOD2);
 372                                 CHECK_MODIFIER(MOD3);
 373                                 CHECK_MODIFIER(MOD4);
 374                                 CHECK_MODIFIER(MOD5);
 375
 376                                 /* No modifier found? Then we’re done with this step */
 377                                 break;
 378                         }
 379
 380                         Binding *new = scalloc(sizeof(Binding));
 381
 382                         /* Now check for the keycode or copy the symbol */
 383                         if (strcasecmp(key, "bind") == 0) {
 384                                 int keycode = strtol(walk, &rest, 10);
 385                                 if (!rest || *rest != ' ')
 386                                         die("Invalid binding (keycode)\n");
 387                                 new->keycode = keycode;
 388                         } else {
 389                                 rest = walk;
 390                                 char *sym = rest;
 391                                 while (*rest != '\0' && *rest != ' ')
 392                                         rest++;
 393                                 if (*rest != ' ')
 394                                         die("Invalid binding (keysym)\n");
 395 #if defined(__OpenBSD__)
 396                                 size_t len = strlen(sym);
 397                                 if (len > (rest - sym))
 398                                         len = (rest - sym);
 399                                 new->symbol = smalloc(len + 1);
 400                                 memcpy(new->symbol, sym, len+1);
 401                                 new->symbol[len]='\0';
 402 #else
 403                                 new->symbol = strndup(sym, (rest - sym));
 404 #endif
 405                         }
 406                         rest++;
 407                         LOG("keycode = %d, symbol = %s, modifiers = %d, command = *%s*\n", new->keycode, new->symbol, modifiers, rest);
 408                         new->mods = modifiers;
 409                         new->command = sstrdup(rest);
 410                         TAILQ_INSERT_TAIL(bindings, new, bindings);
 411                         continue;
 412                 }
 413
 414                 if (strcasecmp(key, "floating_modifier") == 0) {
 415                         char *walk = value;
 416                         uint32_t modifiers = 0;
 417
 418                         while (*walk != '\0') {
 419                                 /* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
 420                                 CHECK_MODIFIER(SHIFT);
 421                                 CHECK_MODIFIER(CONTROL);
 422                                 CHECK_MODIFIER(MODE_SWITCH);
 423                                 CHECK_MODIFIER(MOD1);
 424                                 CHECK_MODIFIER(MOD2);
 425                                 CHECK_MODIFIER(MOD3);
 426                                 CHECK_MODIFIER(MOD4);
 427                                 CHECK_MODIFIER(MOD5);
 428
 429                                 /* No modifier found? Then we’re done with this step */
 430                                 break;
 431                         }
 432
 433                         LOG("Floating modifiers = %d\n", modifiers);
 434                         config.floating_modifier = modifiers;
 435                         continue;
 436                 }
 437
 438                 /* workspace "workspace number" [screen <screen>] ["name of the workspace"]
 439                  * with screen := <number> | <position>, e.g. screen 1280 or screen 1 */
 440                 if (strcasecmp(key, "name") == 0 || strcasecmp(key, "workspace") == 0) {
 441                         LOG("workspace: %s\n",value);
 442                         char *ws_str = sstrdup(value);
 443                         char *end = strchr(ws_str, ' ');
 444                         if (end == NULL)
 445                                 die("Malformed name, couln't find terminating space\n");
 446                         *end = '\0';
 447
 448                         /* Strip trailing whitespace */
 449                         while (strlen(value) > 0 && value[strlen(value)-1] == ' ')
 450                                 value[strlen(value)-1] = '\0';
 451
 452                         int ws_num = atoi(ws_str);
 453
 454                         if (ws_num < 1 || ws_num > 10)
 455                                 die("Malformed name, invalid workspace number\n");
 456
 457                         /* find the name */
 458                         char *name = value;
 459                         name += strlen(ws_str) + 1;
 460
 461                         if (strncasecmp(name, "screen ", strlen("screen ")) == 0) {
 462                                 char *screen = strdup(name + strlen("screen "));
 463                                 if ((end = strchr(screen, ' ')) != NULL)
 464                                         *end = '\0';
 465                                 LOG("Setting preferred screen for workspace %d to \"%s\"\n", ws_num, screen);
 466                                 workspace_get(ws_num-1)->preferred_screen = screen;
 467
 468                                 name += strlen("screen ") + strlen(screen);
 469                         }
 470
 471                         /* Strip leading whitespace */
 472                         while (*name != '\0' && *name == ' ')
 473                                 name++;
 474
 475                         LOG("rest to parse = %s\n", name);
 476
 477                         if (name == '\0') {
 478                                 free(ws_str);
 479                                 continue;
 480                         }
 481
 482                         LOG("setting name to \"%s\"\n", name);
 483
 484                         if (*name != '\0')
 485                                 workspace_set_name(workspace_get(ws_num - 1), name);
 486                         free(ws_str);
 487                         continue;
 488                 }
 489
 490                 /* assign window class[/window title] → workspace */
 491                 if (strcasecmp(key, "assign") == 0) {
 492                         LOG("assign: \"%s\"\n", value);
 493                         char *class_title;
 494                         char *target;
 495                         char *end;
 496
 497                         /* If the window class/title is quoted we skip quotes */
 498                         if (value[0] == '"') {
 499                                 class_title = sstrdup(value+1);
 500                                 end = strchr(class_title, '"');
 501                         } else {
 502                                 class_title = sstrdup(value);
 503                                 /* If it is not quoted, we terminate it at the first space */
 504                                 end = strchr(class_title, ' ');
 505                         }
 506                         if (end == NULL)
 507                                 die("Malformed assignment, couldn't find terminating quote\n");
 508                         *end = '\0';
 509
 510                         /* Strip trailing whitespace */
 511                         while (strlen(value) > 0 && value[strlen(value)-1] == ' ')
 512                                 value[strlen(value)-1] = '\0';
 513
 514                         /* The target is the last argument separated by a space */
 515                         if ((target = strrchr(value, ' ')) == NULL)
 516                                 die("Malformed assignment, couldn't find target (\"%s\")\n", value);
 517                         target++;
 518
 519                         if (strchr(target, '~') == NULL && (atoi(target) < 1 || atoi(target) > 10))
 520                                 die("Malformed assignment, invalid workspace number\n");
 521
 522                         LOG("assignment parsed: \"%s\" to \"%s\"\n", class_title, target);
 523
 524                         struct Assignment *new = scalloc(sizeof(struct Assignment));
 525                         new->windowclass_title = class_title;
 526                         if (strchr(target, '~') != NULL)
 527                                 new->floating = ASSIGN_FLOATING_ONLY;
 528
 529                         while (*target == '~')
 530                                 target++;
 531
 532                         if (atoi(target) >= 1) {
 533                                 if (new->floating == ASSIGN_FLOATING_ONLY)
 534                                         new->floating = ASSIGN_FLOATING;
 535                                 new->workspace = atoi(target);
 536                         }
 537                         TAILQ_INSERT_TAIL(&assignments, new, assignments);
 538
 539                         LOG("Assignment loaded: \"%s\":\n", class_title);
 540                         if (new->floating != ASSIGN_FLOATING_ONLY)
 541                                 LOG(" to workspace %d\n", new->workspace);
 542
 543                         if (new->floating != ASSIGN_FLOATING_NO)
 544                                 LOG(" will be floating\n");
 545
 546                         continue;
 547                 }
 548
 549                 /* set a custom variable */
 550                 if (strcasecmp(key, "set") == 0) {
 551                         if (value[0] != '$')
 552                                 die("Malformed variable assignment, name has to start with $\n");
 553
 554                         /* get key/value for this variable */
 555                         char *v_key = value, *v_value;
 556                         if ((v_value = strstr(value, " ")) == NULL)
 557                                 die("Malformed variable assignment, need a value\n");
 558
 559                         *(v_value++) = '\0';
 560
 561                         struct Variable *new = scalloc(sizeof(struct Variable));
 562                         new->key = sstrdup(v_key);
 563                         new->value = sstrdup(v_value);
 564                         SLIST_INSERT_HEAD(&variables, new, variables);
 565                         LOG("Got new variable %s = %s\n", v_key, v_value);
 566                         continue;
 567                 }
 568
 569                 if (strcasecmp(key, "ipc-socket") == 0) {
 570                         config.ipc_socket_path = sstrdup(value);
 571                         continue;
 572                 }
 573
 574                 die("Unknown configfile option: %s\n", key);
 575         }
 576         /* now grab all keys again */
 577         if (reload)
 578                 grab_all_keys(conn);
 579         fclose(handle);
 580
 581         while (!SLIST_EMPTY(&variables)) {
 582                 struct Variable *v = SLIST_FIRST(&variables);
 583                 SLIST_REMOVE_HEAD(&variables, variables);
 584                 free(v->key);
 585                 free(v->value);
 586                 free(v);
 587         }
 588         }
 589
 590         REQUIRED_OPTION(terminal);
 591         REQUIRED_OPTION(font);
 592
 593         /* Set an empty name for every workspace which got no name */
 594         Workspace *ws;
 595         TAILQ_FOREACH(ws, workspaces, workspaces) {
 596                 if (ws->name != NULL) {
 597                         /* If the font was not specified when the workspace name
 598                          * was loaded, we need to predict the text width now */
 599                         if (ws->text_width == 0)
 600                                 ws->text_width = predict_text_width(global_conn,
 601                                                 config.font, ws->name, ws->name_len);
 602                         continue;
 603                 }
 604
 605                 workspace_set_name(ws, NULL);
 606         }
 607
 608         return;
 609 }