3 * vim:ts=4:sw=4:expandtab
5 * i3 - an improved dynamic tiling window manager
6 * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
8 * cmdparse.y: the parser for commands you send to i3 (or bind on keys)
12 #include <sys/types.h>
19 typedef struct yy_buffer_state *YY_BUFFER_STATE;
20 extern int cmdyylex(struct context *context);
21 extern int cmdyyparse(void);
23 YY_BUFFER_STATE cmdyy_scan_string(const char *);
25 static struct bindings_head *current_bindings;
26 static struct context *context;
27 static Match current_match;
30 * Helper data structure for an operation window (window on which the operation
31 * will be performed). Used to build the TAILQ owindows.
34 typedef struct owindow {
36 TAILQ_ENTRY(owindow) owindows;
38 static TAILQ_HEAD(owindows_head, owindow) owindows;
40 /* We don’t need yydebug for now, as we got decent error messages using
41 * yyerror(). Should you ever want to extend the parser, it might be handy
42 * to just comment it in again, so it stays here. */
45 void cmdyyerror(const char *error_message) {
47 ELOG("CMD: %s\n", error_message);
48 ELOG("CMD: in file \"%s\", line %d:\n",
49 context->filename, context->line_number);
50 ELOG("CMD: %s\n", context->line_copy);
52 for (int c = 1; c <= context->last_column; c++)
53 if (c >= context->first_column)
64 void parse_cmd(const char *new) {
66 //const char *new = "[level-up workspace] attach $output, focus";
68 cmdyy_scan_string(new);
70 context = scalloc(sizeof(struct context));
71 context->filename = "cmd";
72 if (cmdyyparse() != 0) {
73 fprintf(stderr, "Could not parse configfile\n");
78 FREE(context->line_copy);
85 %lex-param { struct context *context }
93 %token TOK_ATTACH "attach"
94 %token TOK_EXEC "exec"
95 %token TOK_EXIT "exit"
96 %token TOK_RELOAD "reload"
97 %token TOK_RESTART "restart"
98 %token TOK_KILL "kill"
99 %token TOK_FULLSCREEN "fullscreen"
100 %token TOK_GLOBAL "global"
101 %token TOK_LAYOUT "layout"
102 %token TOK_DEFAULT "default"
103 %token TOK_STACKED "stacked"
104 %token TOK_TABBED "tabbed"
105 %token TOK_BORDER "border"
106 %token TOK_NONE "none"
107 %token TOK_1PIXEL "1pixel"
108 %token TOK_MODE "mode"
109 %token TOK_TILING "tiling"
110 %token TOK_FLOATING "floating"
111 %token TOK_WORKSPACE "workspace"
112 %token TOK_TOGGLE "toggle"
113 %token TOK_FOCUS "focus"
114 %token TOK_MOVE "move"
115 %token TOK_OPEN "open"
116 %token TOK_NEXT "next"
117 %token TOK_PREV "prev"
118 %token TOK_SPLIT "split"
119 %token TOK_HORIZONTAL "horizontal"
120 %token TOK_VERTICAL "vertical"
121 %token TOK_LEVEL "level"
123 %token TOK_DOWN "down"
124 %token TOK_AFTER "after"
125 %token TOK_BEFORE "before"
126 %token TOK_RESTORE "restore"
128 %token TOK_CLASS "class"
130 %token TOK_CON_ID "con_id"
132 %token WHITESPACE "<whitespace>"
133 %token STR "<string>"
137 commands: /* empty */
138 | commands optwhitespace ';' optwhitespace command
143 printf("single command completely parsed, dropping state...\n");
144 while (!TAILQ_EMPTY(&owindows)) {
145 current = TAILQ_FIRST(&owindows);
146 TAILQ_REMOVE(&owindows, current, owindows);
149 memset(¤t_match, 0, sizeof(Match));
158 match optwhitespace operations
162 | matchstart optwhitespace criteria optwhitespace matchend
164 printf("match parsed\n");
172 memset(¤t_match, '\0', sizeof(Match));
173 TAILQ_INIT(&owindows);
176 TAILQ_FOREACH(con, &all_cons, all_cons) {
177 owindow *ow = smalloc(sizeof(owindow));
179 TAILQ_INSERT_TAIL(&owindows, ow, owindows);
187 owindow *next, *current;
189 printf("match specification finished, matching...\n");
190 /* copy the old list head to iterate through it and start with a fresh
191 * list which will contain only matching windows */
192 struct owindows_head old = owindows;
193 TAILQ_INIT(&owindows);
194 for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
195 /* make a copy of the next pointer and advance the pointer to the
196 * next element as we are going to invalidate the element’s
197 * next/prev pointers by calling TAILQ_INSERT_TAIL later */
199 next = TAILQ_NEXT(next, owindows);
201 printf("checking if con %p / %s matches\n", current->con, current->con->name);
202 if (current_match.con_id != NULL) {
203 if (current_match.con_id == current->con) {
204 printf("matches container!\n");
205 TAILQ_INSERT_TAIL(&owindows, current, owindows);
209 if (current->con->window == NULL)
211 if (match_matches_window(¤t_match, current->con->window)) {
212 printf("matches window!\n");
213 TAILQ_INSERT_TAIL(&owindows, current, owindows);
215 printf("doesnt match\n");
221 TAILQ_FOREACH(current, &owindows, owindows) {
222 printf("matching: %p / %s\n", current->con, current->con->name);
231 printf("criteria: class = %s\n", $<string>3);
232 current_match.class = $<string>3;
236 printf("criteria: id = %s\n", $<string>3);
237 /* TODO: correctly parse number */
238 current_match.con_id = atoi($<string>3);
239 printf("id as int = %d\n", current_match.con_id);
245 | operation optwhitespace
246 | operations ',' optwhitespace operation
273 TOK_EXEC WHITESPACE STR
275 printf("should execute %s\n", $<string>3);
276 start_application($<string>3);
283 printf("exit, bye bye\n");
291 printf("restarting i3\n");
299 printf("should attach\n");
308 printf("should focus\n");
309 if (match_is_empty(¤t_match)) {
310 /* TODO: better error message */
311 LOG("Error: The foucs command requires you to use some criteria.\n");
315 /* TODO: warning if the match contains more than one entry. does not
316 * make so much sense when focusing */
317 TAILQ_FOREACH(current, &owindows, owindows) {
318 LOG("focusing %p / %s\n", current->con, current->con->name);
319 con_focus(current->con);
329 printf("killing!\n");
330 /* check if the match is empty, not if the result is empty */
331 if (match_is_empty(¤t_match))
332 tree_close(focused, true);
334 TAILQ_FOREACH(current, &owindows, owindows) {
335 printf("matching: %p / %s\n", current->con, current->con->name);
336 tree_close(current->con, true);
344 TOK_WORKSPACE WHITESPACE STR
346 printf("should switch to workspace %s\n", $<string>3);
347 workspace_show($<string>3);
355 printf("opening new container\n");
363 printf("toggling fullscreen\n");
366 /* check if the match is empty, not if the result is empty */
367 if (match_is_empty(¤t_match))
368 con_toggle_fullscreen(focused);
370 TAILQ_FOREACH(current, &owindows, owindows) {
371 printf("matching: %p / %s\n", current->con, current->con->name);
372 con_toggle_fullscreen(current->con);
380 TOK_NEXT WHITESPACE direction
382 /* TODO: use matches */
383 printf("should select next window in direction %c\n", $<chr>3);
384 tree_next('n', ($<chr>3 == 'v' ? VERT : HORIZ));
389 TOK_PREV WHITESPACE direction
391 /* TODO: use matches */
392 printf("should select prev window in direction %c\n", $<chr>3);
393 tree_next('p', ($<chr>3 == 'v' ? VERT : HORIZ));
398 TOK_SPLIT WHITESPACE direction
400 /* TODO: use matches */
401 printf("splitting in direction %c\n", $<chr>3);
402 tree_split(focused, ($<chr>3 == 'v' ? VERT : HORIZ));
407 TOK_HORIZONTAL { $<chr>$ = 'h'; }
408 | 'h' { $<chr>$ = 'h'; }
409 | TOK_VERTICAL { $<chr>$ = 'v'; }
410 | 'v' { $<chr>$ = 'v'; }
414 TOK_MODE WHITESPACE window_mode
416 if ($<number>3 == TOK_TOGGLE) {
417 printf("should toggle mode\n");
418 toggle_floating_mode(focused, false);
420 printf("should switch mode to %s\n", ($<number>3 == TOK_FLOATING ? "floating" : "tiling"));
421 /* TODO: actually switch mode (not toggle) */
427 TOK_FLOATING { $<number>$ = TOK_FLOATING; }
428 | TOK_TILING { $<number>$ = TOK_TILING; }
429 | TOK_TOGGLE { $<number>$ = TOK_TOGGLE; }
433 TOK_LEVEL WHITESPACE level_direction
435 printf("level %c\n", $<chr>3);
443 TOK_UP { $<chr>$ = 'u'; }
444 | TOK_DOWN { $<chr>$ = 'd'; }
448 TOK_MOVE WHITESPACE before_after WHITESPACE direction
450 printf("moving: %s and %c\n", ($<number>3 == TOK_BEFORE ? "before" : "after"), $<chr>5);
451 /* TODO: change API for the next call, we need to convert in both directions while ideally
452 * we should not need any of both */
453 tree_move(($<number>3 == TOK_BEFORE ? 'p' : 'n'), ($<chr>5 == 'v' ? VERT : HORIZ));
458 TOK_BEFORE { $<number>$ = TOK_BEFORE; }
459 | TOK_AFTER { $<number>$ = TOK_AFTER; }
463 TOK_RESTORE WHITESPACE STR
465 printf("restoring \"%s\"\n", $<string>3);
466 tree_append_json($<string>3);