git.sur5r.net Git - i3/i3/blob - src/cmdparse.y

   1 %{
   2 /*
   3  * vim:ts=4:sw=4:expandtab
   4  *
   5  * i3 - an improved dynamic tiling window manager
   6  * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
   7  *
   8  * cmdparse.y: the parser for commands you send to i3 (or bind on keys)
   9  *
  10
  11  */
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14 #include <unistd.h>
  15 #include <fcntl.h>
  16 #include <float.h>
  17
  18 #include "all.h"
  19
  20 /** When the command did not include match criteria (!), we use the currently
  21  * focused command. Do not confuse this case with a command which included
  22  * criteria but which did not match any windows. This macro has to be called in
  23  * every command.
  24  */
  25 #define HANDLE_EMPTY_MATCH do { \
  26     if (match_is_empty(&current_match)) { \
  27         owindow *ow = smalloc(sizeof(owindow)); \
  28         ow->con = focused; \
  29         TAILQ_INIT(&owindows); \
  30         TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  31     } \
  32 } while (0)
  33
  34 typedef struct yy_buffer_state *YY_BUFFER_STATE;
  35 extern int cmdyylex(struct context *context);
  36 extern int cmdyyparse(void);
  37 extern int cmdyylex_destroy(void);
  38 extern FILE *cmdyyin;
  39 YY_BUFFER_STATE cmdyy_scan_string(const char *);
  40
  41 static struct context *context;
  42 static Match current_match;
  43
  44 /*
  45  * Helper data structure for an operation window (window on which the operation
  46  * will be performed). Used to build the TAILQ owindows.
  47  *
  48  */
  49 typedef struct owindow {
  50     Con *con;
  51     TAILQ_ENTRY(owindow) owindows;
  52 } owindow;
  53 static TAILQ_HEAD(owindows_head, owindow) owindows;
  54
  55 /* Holds the JSON which will be returned via IPC or NULL for the default return
  56  * message */
  57 static char *json_output;
  58
  59 /* We don’t need yydebug for now, as we got decent error messages using
  60  * yyerror(). Should you ever want to extend the parser, it might be handy
  61  * to just comment it in again, so it stays here. */
  62 //int cmdyydebug = 1;
  63
  64 void cmdyyerror(const char *error_message) {
  65     ELOG("\n");
  66     ELOG("CMD: %s\n", error_message);
  67     ELOG("CMD: in command:\n");
  68     ELOG("CMD:   %s\n", context->line_copy);
  69     ELOG("CMD:   ");
  70     for (int c = 1; c <= context->last_column; c++)
  71         if (c >= context->first_column)
  72                 printf("^");
  73         else printf(" ");
  74     printf("\n");
  75     ELOG("\n");
  76     context->compact_error = sstrdup(error_message);
  77 }
  78
  79 int cmdyywrap() {
  80     return 1;
  81 }
  82
  83 char *parse_cmd(const char *new) {
  84     json_output = NULL;
  85     LOG("COMMAND: *%s*\n", new);
  86     cmdyy_scan_string(new);
  87
  88     match_init(&current_match);
  89     context = scalloc(sizeof(struct context));
  90     context->filename = "cmd";
  91     if (cmdyyparse() != 0) {
  92         fprintf(stderr, "Could not parse command\n");
  93         asprintf(&json_output, "{\"success\":false, \"error\":\"%s at position %d\"}",
  94                  context->compact_error, context->first_column);
  95         FREE(context->line_copy);
  96         FREE(context->compact_error);
  97         free(context);
  98         return json_output;
  99     }
 100     printf("done, json output = %s\n", json_output);
 101
 102     cmdyylex_destroy();
 103     FREE(context->line_copy);
 104     FREE(context->compact_error);
 105     free(context);
 106     return json_output;
 107 }
 108
 109 /*
 110  * Returns true if a is definitely greater than b (using the given epsilon)
 111  *
 112  */
 113 bool definitelyGreaterThan(float a, float b, float epsilon) {
 114     return (a - b) > ( (fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
 115 }
 116
 117 %}
 118
 119 %error-verbose
 120 %lex-param { struct context *context }
 121
 122 %union {
 123     char *string;
 124     char chr;
 125     int number;
 126 }
 127
 128 %token              TOK_EXEC            "exec"
 129 %token              TOK_EXIT            "exit"
 130 %token              TOK_RELOAD          "reload"
 131 %token              TOK_RESTART         "restart"
 132 %token              TOK_KILL            "kill"
 133 %token              TOK_WINDOW          "window"
 134 %token              TOK_CLIENT          "client"
 135 %token              TOK_FULLSCREEN      "fullscreen"
 136 %token              TOK_GLOBAL          "global"
 137 %token              TOK_LAYOUT          "layout"
 138 %token              TOK_DEFAULT         "default"
 139 %token              TOK_STACKED         "stacked"
 140 %token              TOK_TABBED          "tabbed"
 141 %token              TOK_BORDER          "border"
 142 %token              TOK_NORMAL          "normal"
 143 %token              TOK_NONE            "none"
 144 %token              TOK_1PIXEL          "1pixel"
 145 %token              TOK_MODE            "mode"
 146 %token              TOK_TILING          "tiling"
 147 %token              TOK_FLOATING        "floating"
 148 %token              TOK_MODE_TOGGLE     "mode_toggle"
 149 %token              TOK_ENABLE          "enable"
 150 %token              TOK_DISABLE         "disable"
 151 %token              TOK_WORKSPACE       "workspace"
 152 %token              TOK_OUTPUT          "output"
 153 %token              TOK_TOGGLE          "toggle"
 154 %token              TOK_FOCUS           "focus"
 155 %token              TOK_MOVE            "move"
 156 %token              TOK_OPEN            "open"
 157 %token              TOK_NEXT            "next"
 158 %token              TOK_PREV            "prev"
 159 %token              TOK_SPLIT           "split"
 160 %token              TOK_HORIZONTAL      "horizontal"
 161 %token              TOK_VERTICAL        "vertical"
 162 %token              TOK_UP              "up"
 163 %token              TOK_DOWN            "down"
 164 %token              TOK_LEFT            "left"
 165 %token              TOK_RIGHT           "right"
 166 %token              TOK_PARENT          "parent"
 167 %token              TOK_CHILD           "child"
 168 %token              TOK_APPEND_LAYOUT   "append_layout"
 169 %token              TOK_MARK            "mark"
 170 %token              TOK_RESIZE          "resize"
 171 %token              TOK_GROW            "grow"
 172 %token              TOK_SHRINK          "shrink"
 173 %token              TOK_PX              "px"
 174 %token              TOK_OR              "or"
 175 %token              TOK_PPT             "ppt"
 176 %token              TOK_NOP             "nop"
 177
 178 %token              TOK_CLASS           "class"
 179 %token              TOK_INSTANCE        "instance"
 180 %token              TOK_ID              "id"
 181 %token              TOK_CON_ID          "con_id"
 182 %token              TOK_TITLE           "title"
 183
 184 %token  <string>    STR                 "<string>"
 185 %token  <number>    NUMBER              "<number>"
 186
 187 %type   <number>    direction
 188 %type   <number>    split_direction
 189 %type   <number>    fullscreen_mode
 190 %type   <number>    level
 191 %type   <number>    window_mode
 192 %type   <number>    boolean
 193 %type   <number>    border_style
 194 %type   <number>    layout_mode
 195 %type   <number>    resize_px
 196 %type   <number>    resize_way
 197 %type   <number>    resize_tiling
 198 %type   <number>    optional_kill_mode
 199
 200 %%
 201
 202 commands:
 203     commands ';' command
 204     | command
 205     {
 206         owindow *current;
 207
 208         printf("single command completely parsed, dropping state...\n");
 209         while (!TAILQ_EMPTY(&owindows)) {
 210             current = TAILQ_FIRST(&owindows);
 211             TAILQ_REMOVE(&owindows, current, owindows);
 212             free(current);
 213         }
 214         match_init(&current_match);
 215     }
 216     ;
 217
 218 command:
 219     match operations
 220     ;
 221
 222 match:
 223     | matchstart criteria matchend
 224     {
 225         printf("match parsed\n");
 226     }
 227     ;
 228
 229 matchstart:
 230     '['
 231     {
 232         printf("start\n");
 233         match_init(&current_match);
 234         TAILQ_INIT(&owindows);
 235         /* copy all_cons */
 236         Con *con;
 237         TAILQ_FOREACH(con, &all_cons, all_cons) {
 238             owindow *ow = smalloc(sizeof(owindow));
 239             ow->con = con;
 240             TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 241         }
 242     }
 243     ;
 244
 245 matchend:
 246     ']'
 247     {
 248         owindow *next, *current;
 249
 250         printf("match specification finished, matching...\n");
 251         /* copy the old list head to iterate through it and start with a fresh
 252          * list which will contain only matching windows */
 253         struct owindows_head old = owindows;
 254         TAILQ_INIT(&owindows);
 255         for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 256             /* make a copy of the next pointer and advance the pointer to the
 257              * next element as we are going to invalidate the element’s
 258              * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 259             current = next;
 260             next = TAILQ_NEXT(next, owindows);
 261
 262             printf("checking if con %p / %s matches\n", current->con, current->con->name);
 263             if (current_match.con_id != NULL) {
 264                 if (current_match.con_id == current->con) {
 265                     printf("matches container!\n");
 266                     TAILQ_INSERT_TAIL(&owindows, current, owindows);
 267
 268                 }
 269             } else if (current_match.mark != NULL && current->con->mark != NULL &&
 270                        regex_matches(current_match.mark, current->con->mark)) {
 271                 printf("match by mark\n");
 272                 TAILQ_INSERT_TAIL(&owindows, current, owindows);
 273             } else {
 274                 if (current->con->window == NULL)
 275                     continue;
 276                 if (match_matches_window(&current_match, current->con->window)) {
 277                     printf("matches window!\n");
 278                     TAILQ_INSERT_TAIL(&owindows, current, owindows);
 279                 } else {
 280                     printf("doesnt match\n");
 281                     free(current);
 282                 }
 283             }
 284         }
 285
 286         TAILQ_FOREACH(current, &owindows, owindows) {
 287             printf("matching: %p / %s\n", current->con, current->con->name);
 288         }
 289
 290     }
 291     ;
 292
 293 criteria:
 294     criteria criterion
 295     | criterion
 296     ;
 297
 298 criterion:
 299     TOK_CLASS '=' STR
 300     {
 301         printf("criteria: class = %s\n", $3);
 302         current_match.class = regex_new($3);
 303         free($3);
 304     }
 305     | TOK_INSTANCE '=' STR
 306     {
 307         printf("criteria: instance = %s\n", $3);
 308         current_match.instance = regex_new($3);
 309         free($3);
 310     }
 311     | TOK_CON_ID '=' STR
 312     {
 313         printf("criteria: id = %s\n", $3);
 314         char *end;
 315         long parsed = strtol($3, &end, 10);
 316         if (parsed == LONG_MIN ||
 317             parsed == LONG_MAX ||
 318             parsed < 0 ||
 319             (end && *end != '\0')) {
 320             ELOG("Could not parse con id \"%s\"\n", $3);
 321         } else {
 322             current_match.con_id = (Con*)parsed;
 323             printf("id as int = %p\n", current_match.con_id);
 324         }
 325     }
 326     | TOK_ID '=' STR
 327     {
 328         printf("criteria: window id = %s\n", $3);
 329         char *end;
 330         long parsed = strtol($3, &end, 10);
 331         if (parsed == LONG_MIN ||
 332             parsed == LONG_MAX ||
 333             parsed < 0 ||
 334             (end && *end != '\0')) {
 335             ELOG("Could not parse window id \"%s\"\n", $3);
 336         } else {
 337             current_match.id = parsed;
 338             printf("window id as int = %d\n", current_match.id);
 339         }
 340     }
 341     | TOK_MARK '=' STR
 342     {
 343         printf("criteria: mark = %s\n", $3);
 344         current_match.mark = regex_new($3);
 345         free($3);
 346     }
 347     | TOK_TITLE '=' STR
 348     {
 349         printf("criteria: title = %s\n", $3);
 350         current_match.title = regex_new($3);
 351         free($3);
 352     }
 353     ;
 354
 355 operations:
 356     operation
 357     | operations ',' operation
 358     ;
 359
 360 operation:
 361     exec
 362     | exit
 363     | restart
 364     | reload
 365     | border
 366     | layout
 367     | append_layout
 368     | move
 369     | workspace
 370     | focus
 371     | kill
 372     | open
 373     | fullscreen
 374     | split
 375     | floating
 376     | mark
 377     | resize
 378     | nop
 379     | mode
 380     ;
 381
 382 exec:
 383     TOK_EXEC STR
 384     {
 385         printf("should execute %s\n", $2);
 386         start_application($2);
 387         free($2);
 388     }
 389     ;
 390
 391 exit:
 392     TOK_EXIT
 393     {
 394         printf("exit, bye bye\n");
 395         exit(0);
 396     }
 397     ;
 398
 399 reload:
 400     TOK_RELOAD
 401     {
 402         printf("reloading\n");
 403         kill_configerror_nagbar(false);
 404         load_configuration(conn, NULL, true);
 405         x_set_i3_atoms();
 406         /* Send an IPC event just in case the ws names have changed */
 407         ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"reload\"}");
 408     }
 409     ;
 410
 411 restart:
 412     TOK_RESTART
 413     {
 414         printf("restarting i3\n");
 415         i3_restart(false);
 416     }
 417     ;
 418
 419 focus:
 420     TOK_FOCUS
 421     {
 422         owindow *current;
 423
 424         if (match_is_empty(&current_match)) {
 425             ELOG("You have to specify which window/container should be focused.\n");
 426             ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
 427
 428             asprintf(&json_output, "{\"success\":false, \"error\":\"You have to "
 429                      "specify which window/container should be focused\"}");
 430             break;
 431         }
 432
 433         int count = 0;
 434         TAILQ_FOREACH(current, &owindows, owindows) {
 435             Con *ws = con_get_workspace(current->con);
 436             workspace_show(ws->name);
 437             LOG("focusing %p / %s\n", current->con, current->con->name);
 438             con_focus(current->con);
 439             count++;
 440         }
 441
 442         if (count > 1)
 443             LOG("WARNING: Your criteria for the focus command matches %d containers, "
 444                 "while only exactly one container can be focused at a time.\n", count);
 445
 446         tree_render();
 447     }
 448     | TOK_FOCUS direction
 449     {
 450         int direction = $2;
 451         switch (direction) {
 452             case TOK_LEFT:
 453                 LOG("Focusing left\n");
 454                 tree_next('p', HORIZ);
 455                 break;
 456             case TOK_RIGHT:
 457                 LOG("Focusing right\n");
 458                 tree_next('n', HORIZ);
 459                 break;
 460             case TOK_UP:
 461                 LOG("Focusing up\n");
 462                 tree_next('p', VERT);
 463                 break;
 464             case TOK_DOWN:
 465                 LOG("Focusing down\n");
 466                 tree_next('n', VERT);
 467                 break;
 468             default:
 469                 ELOG("Invalid focus direction (%d)\n", direction);
 470                 break;
 471         }
 472
 473         tree_render();
 474     }
 475     | TOK_FOCUS window_mode
 476     {
 477         printf("should focus: ");
 478
 479         if ($2 == TOK_TILING)
 480             printf("tiling\n");
 481         else if ($2 == TOK_FLOATING)
 482             printf("floating\n");
 483         else printf("mode toggle\n");
 484
 485         Con *ws = con_get_workspace(focused);
 486         Con *current;
 487         if (ws != NULL) {
 488             int to_focus = $2;
 489             if ($2 == TOK_MODE_TOGGLE) {
 490                 current = TAILQ_FIRST(&(ws->focus_head));
 491                 if (current != NULL && current->type == CT_FLOATING_CON)
 492                     to_focus = TOK_TILING;
 493                 else to_focus = TOK_FLOATING;
 494             }
 495             TAILQ_FOREACH(current, &(ws->focus_head), focused) {
 496                 if ((to_focus == TOK_FLOATING && current->type != CT_FLOATING_CON) ||
 497                     (to_focus == TOK_TILING && current->type == CT_FLOATING_CON))
 498                     continue;
 499
 500                 con_focus(con_descend_focused(current));
 501                 break;
 502             }
 503         }
 504
 505         tree_render();
 506     }
 507     | TOK_FOCUS level
 508     {
 509         if ($2 == TOK_PARENT)
 510             level_up();
 511         else level_down();
 512
 513         tree_render();
 514     }
 515     ;
 516
 517 window_mode:
 518     TOK_TILING        { $$ = TOK_TILING; }
 519     | TOK_FLOATING    { $$ = TOK_FLOATING; }
 520     | TOK_MODE_TOGGLE { $$ = TOK_MODE_TOGGLE; }
 521     ;
 522
 523 level:
 524     TOK_PARENT  { $$ = TOK_PARENT; }
 525     | TOK_CHILD { $$ = TOK_CHILD;  }
 526     ;
 527
 528 kill:
 529     TOK_KILL optional_kill_mode
 530     {
 531         owindow *current;
 532
 533         printf("killing!\n");
 534         /* check if the match is empty, not if the result is empty */
 535         if (match_is_empty(&current_match))
 536             tree_close_con($2);
 537         else {
 538             TAILQ_FOREACH(current, &owindows, owindows) {
 539                 printf("matching: %p / %s\n", current->con, current->con->name);
 540                 tree_close(current->con, $2, false);
 541             }
 542         }
 543
 544         tree_render();
 545     }
 546     ;
 547
 548 optional_kill_mode:
 549     /* empty */             { $$ = KILL_WINDOW; }
 550     | TOK_WINDOW { $$ = KILL_WINDOW; }
 551     | TOK_CLIENT { $$ = KILL_CLIENT; }
 552     ;
 553
 554 workspace:
 555     TOK_WORKSPACE TOK_NEXT
 556     {
 557         workspace_next();
 558         tree_render();
 559     }
 560     | TOK_WORKSPACE TOK_PREV
 561     {
 562         workspace_prev();
 563         tree_render();
 564     }
 565     | TOK_WORKSPACE STR
 566     {
 567         printf("should switch to workspace %s\n", $2);
 568         workspace_show($2);
 569         free($2);
 570
 571         tree_render();
 572     }
 573     ;
 574
 575 open:
 576     TOK_OPEN
 577     {
 578         printf("opening new container\n");
 579         Con *con = tree_open_con(NULL, NULL);
 580         con_focus(con);
 581         asprintf(&json_output, "{\"success\":true, \"id\":%ld}", (long int)con);
 582
 583         tree_render();
 584     }
 585     ;
 586
 587 fullscreen:
 588     TOK_FULLSCREEN fullscreen_mode
 589     {
 590         printf("toggling fullscreen, mode = %s\n", ($2 == CF_OUTPUT ? "normal" : "global"));
 591         owindow *current;
 592
 593         HANDLE_EMPTY_MATCH;
 594
 595         TAILQ_FOREACH(current, &owindows, owindows) {
 596             printf("matching: %p / %s\n", current->con, current->con->name);
 597             con_toggle_fullscreen(current->con, $2);
 598         }
 599
 600         tree_render();
 601     }
 602     ;
 603
 604 fullscreen_mode:
 605     /* empty */  { $$ = CF_OUTPUT; }
 606     | TOK_GLOBAL { $$ = CF_GLOBAL; }
 607     ;
 608
 609 split:
 610     TOK_SPLIT split_direction
 611     {
 612         /* TODO: use matches */
 613         printf("splitting in direction %c\n", $2);
 614         tree_split(focused, ($2 == 'v' ? VERT : HORIZ));
 615
 616         tree_render();
 617     }
 618     ;
 619
 620 split_direction:
 621     TOK_HORIZONTAL  { $$ = 'h'; }
 622     | 'h'           { $$ = 'h'; }
 623     | TOK_VERTICAL  { $$ = 'v'; }
 624     | 'v'           { $$ = 'v'; }
 625     ;
 626
 627 floating:
 628     TOK_FLOATING boolean
 629     {
 630         HANDLE_EMPTY_MATCH;
 631
 632         owindow *current;
 633         TAILQ_FOREACH(current, &owindows, owindows) {
 634             printf("matching: %p / %s\n", current->con, current->con->name);
 635             if ($2 == TOK_TOGGLE) {
 636                 printf("should toggle mode\n");
 637                 toggle_floating_mode(current->con, false);
 638             } else {
 639                 printf("should switch mode to %s\n", ($2 == TOK_FLOATING ? "floating" : "tiling"));
 640                 if ($2 == TOK_ENABLE) {
 641                     floating_enable(current->con, false);
 642                 } else {
 643                     floating_disable(current->con, false);
 644                 }
 645             }
 646         }
 647
 648         tree_render();
 649     }
 650     ;
 651
 652 boolean:
 653     TOK_ENABLE    { $$ = TOK_ENABLE; }
 654     | TOK_DISABLE { $$ = TOK_DISABLE; }
 655     | TOK_TOGGLE  { $$ = TOK_TOGGLE; }
 656     ;
 657
 658 border:
 659     TOK_BORDER border_style
 660     {
 661         printf("border style should be changed to %d\n", $2);
 662         owindow *current;
 663
 664         HANDLE_EMPTY_MATCH;
 665
 666         TAILQ_FOREACH(current, &owindows, owindows) {
 667             printf("matching: %p / %s\n", current->con, current->con->name);
 668             if ($2 == TOK_TOGGLE) {
 669                 current->con->border_style++;
 670                 current->con->border_style %= 3;
 671             } else current->con->border_style = $2;
 672         }
 673
 674         tree_render();
 675     }
 676     ;
 677
 678 border_style:
 679     TOK_NORMAL      { $$ = BS_NORMAL; }
 680     | TOK_NONE      { $$ = BS_NONE; }
 681     | TOK_1PIXEL    { $$ = BS_1PIXEL; }
 682     | TOK_TOGGLE    { $$ = TOK_TOGGLE; }
 683     ;
 684
 685 move:
 686     TOK_MOVE direction
 687     {
 688         printf("moving in direction %d\n", $2);
 689         tree_move($2);
 690
 691         tree_render();
 692     }
 693     | TOK_MOVE TOK_WORKSPACE STR
 694     {
 695         owindow *current;
 696
 697         printf("should move window to workspace %s\n", $3);
 698         /* get the workspace */
 699         Con *ws = workspace_get($3, NULL);
 700         free($3);
 701
 702         HANDLE_EMPTY_MATCH;
 703
 704         TAILQ_FOREACH(current, &owindows, owindows) {
 705             printf("matching: %p / %s\n", current->con, current->con->name);
 706             con_move_to_workspace(current->con, ws, true, false);
 707         }
 708
 709         tree_render();
 710     }
 711     | TOK_MOVE TOK_OUTPUT STR
 712     {
 713         owindow *current;
 714
 715         printf("should move window to output %s", $3);
 716
 717         HANDLE_EMPTY_MATCH;
 718
 719         /* get the output */
 720         Output *current_output = NULL;
 721         Output *output;
 722
 723         TAILQ_FOREACH(current, &owindows, owindows)
 724             current_output = get_output_containing(current->con->rect.x, current->con->rect.y);
 725
 726         assert(current_output != NULL);
 727
 728         if (strcasecmp($3, "up") == 0)
 729             output = get_output_next(D_UP, current_output);
 730         else if (strcasecmp($3, "down") == 0)
 731             output = get_output_next(D_DOWN, current_output);
 732         else if (strcasecmp($3, "left") == 0)
 733             output = get_output_next(D_LEFT, current_output);
 734         else if (strcasecmp($3, "right") == 0)
 735             output = get_output_next(D_RIGHT, current_output);
 736         else
 737             output = get_output_by_name($3);
 738         free($3);
 739
 740         if (!output)
 741             break;
 742
 743         /* get visible workspace on output */
 744         Con *ws = NULL;
 745         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
 746         if (!ws)
 747             break;
 748
 749         TAILQ_FOREACH(current, &owindows, owindows) {
 750             printf("matching: %p / %s\n", current->con, current->con->name);
 751             con_move_to_workspace(current->con, ws, true, false);
 752         }
 753
 754         tree_render();
 755     }
 756     ;
 757
 758 append_layout:
 759     TOK_APPEND_LAYOUT STR
 760     {
 761         printf("restoring \"%s\"\n", $2);
 762         tree_append_json($2);
 763         free($2);
 764         tree_render();
 765     }
 766     ;
 767
 768 layout:
 769     TOK_LAYOUT layout_mode
 770     {
 771         printf("changing layout to %d\n", $2);
 772         owindow *current;
 773
 774         /* check if the match is empty, not if the result is empty */
 775         if (match_is_empty(&current_match))
 776             con_set_layout(focused->parent, $2);
 777         else {
 778             TAILQ_FOREACH(current, &owindows, owindows) {
 779                 printf("matching: %p / %s\n", current->con, current->con->name);
 780                 con_set_layout(current->con, $2);
 781             }
 782         }
 783
 784         tree_render();
 785     }
 786     ;
 787
 788 layout_mode:
 789     TOK_DEFAULT   { $$ = L_DEFAULT; }
 790     | TOK_STACKED { $$ = L_STACKED; }
 791     | TOK_TABBED  { $$ = L_TABBED; }
 792     ;
 793
 794 mark:
 795     TOK_MARK STR
 796     {
 797         printf("marking window with str %s\n", $2);
 798         owindow *current;
 799
 800         HANDLE_EMPTY_MATCH;
 801
 802         TAILQ_FOREACH(current, &owindows, owindows) {
 803             printf("matching: %p / %s\n", current->con, current->con->name);
 804             current->con->mark = sstrdup($2);
 805         }
 806
 807         free($<string>2);
 808
 809         tree_render();
 810     }
 811     ;
 812
 813 nop:
 814     TOK_NOP STR
 815     {
 816         printf("-------------------------------------------------\n");
 817         printf("  NOP: %s\n", $2);
 818         printf("-------------------------------------------------\n");
 819         free($2);
 820     }
 821     ;
 822
 823 resize:
 824     TOK_RESIZE resize_way direction resize_px resize_tiling
 825     {
 826         /* resize <grow|shrink> <direction> [<px> px] [or <ppt> ppt] */
 827         printf("resizing in way %d, direction %d, px %d or ppt %d\n", $2, $3, $4, $5);
 828         int direction = $3;
 829         int px = $4;
 830         int ppt = $5;
 831         if ($2 == TOK_SHRINK) {
 832             px *= -1;
 833             ppt *= -1;
 834         }
 835
 836         if (con_is_floating(focused)) {
 837             printf("floating resize\n");
 838             if (direction == TOK_UP) {
 839                 focused->parent->rect.y -= px;
 840                 focused->parent->rect.height += px;
 841             } else if (direction == TOK_DOWN) {
 842                 focused->parent->rect.height += px;
 843             } else if (direction == TOK_LEFT) {
 844                 focused->parent->rect.x -= px;
 845                 focused->parent->rect.width += px;
 846             } else {
 847                 focused->parent->rect.width += px;
 848             }
 849         } else {
 850             LOG("tiling resize\n");
 851             /* get the appropriate current container (skip stacked/tabbed cons) */
 852             Con *current = focused;
 853             while (current->parent->layout == L_STACKED ||
 854                    current->parent->layout == L_TABBED)
 855                 current = current->parent;
 856             /* get the default percentage */
 857             int children = con_num_children(current->parent);
 858             Con *other;
 859             LOG("ins. %d children\n", children);
 860             double percentage = 1.0 / children;
 861             LOG("default percentage = %f\n", percentage);
 862
 863             orientation_t orientation = current->parent->orientation;
 864
 865             if ((orientation == HORIZ &&
 866                  (direction == TOK_UP || direction == TOK_DOWN)) ||
 867                 (orientation == VERT &&
 868                  (direction == TOK_LEFT || direction == TOK_RIGHT))) {
 869                 LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 870                     (orientation == HORIZ ? "horizontal" : "vertical"));
 871                 break;
 872             }
 873
 874             if (direction == TOK_UP || direction == TOK_LEFT) {
 875                 other = TAILQ_PREV(current, nodes_head, nodes);
 876             } else {
 877                 other = TAILQ_NEXT(current, nodes);
 878             }
 879             if (other == TAILQ_END(workspaces)) {
 880                 LOG("No other container in this direction found, cannot resize.\n");
 881                 break;
 882             }
 883             LOG("other->percent = %f\n", other->percent);
 884             LOG("current->percent before = %f\n", current->percent);
 885             if (current->percent == 0.0)
 886                 current->percent = percentage;
 887             if (other->percent == 0.0)
 888                 other->percent = percentage;
 889             double new_current_percent = current->percent + ((double)ppt / 100.0);
 890             double new_other_percent = other->percent - ((double)ppt / 100.0);
 891             LOG("new_current_percent = %f\n", new_current_percent);
 892             LOG("new_other_percent = %f\n", new_other_percent);
 893             /* Ensure that the new percentages are positive and greater than
 894              * 0.05 to have a reasonable minimum size. */
 895             if (definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON) &&
 896                 definitelyGreaterThan(new_other_percent, 0.05, DBL_EPSILON)) {
 897                 current->percent += ((double)ppt / 100.0);
 898                 other->percent -= ((double)ppt / 100.0);
 899                 LOG("current->percent after = %f\n", current->percent);
 900                 LOG("other->percent after = %f\n", other->percent);
 901             } else {
 902                 LOG("Not resizing, already at minimum size\n");
 903             }
 904         }
 905
 906         tree_render();
 907     }
 908     ;
 909
 910 resize_px:
 911     /* empty */
 912     {
 913         $$ = 10;
 914     }
 915     | NUMBER TOK_PX
 916     {
 917         $$ = $1;
 918     }
 919     ;
 920
 921 resize_tiling:
 922     /* empty */
 923     {
 924         $$ = 10;
 925     }
 926     | TOK_OR NUMBER TOK_PPT
 927     {
 928         $$ = $2;
 929     }
 930     ;
 931
 932 resize_way:
 933     TOK_GROW        { $$ = TOK_GROW; }
 934     | TOK_SHRINK    { $$ = TOK_SHRINK; }
 935     ;
 936
 937 direction:
 938     TOK_UP          { $$ = TOK_UP; }
 939     | TOK_DOWN      { $$ = TOK_DOWN; }
 940     | TOK_LEFT      { $$ = TOK_LEFT; }
 941     | TOK_RIGHT     { $$ = TOK_RIGHT; }
 942     ;
 943
 944 mode:
 945     TOK_MODE STR
 946     {
 947         switch_mode($2);
 948     }
 949     ;