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_FOCUS "focus"
113 %token TOK_MOVE "move"
114 %token TOK_OPEN "open"
115 %token TOK_NEXT "next"
116 %token TOK_PREV "prev"
117 %token TOK_SPLIT "split"
118 %token TOK_HORIZONTAL "horizontal"
119 %token TOK_VERTICAL "vertical"
120 %token TOK_LEVEL "level"
122 %token TOK_DOWN "down"
123 %token TOK_AFTER "after"
124 %token TOK_BEFORE "before"
125 %token TOK_RESTORE "restore"
127 %token TOK_CLASS "class"
129 %token TOK_CON_ID "con_id"
131 %token WHITESPACE "<whitespace>"
132 %token STR "<string>"
136 commands: /* empty */
137 | commands optwhitespace ';' optwhitespace command
142 printf("single command completely parsed, dropping state...\n");
143 while (!TAILQ_EMPTY(&owindows)) {
144 current = TAILQ_FIRST(&owindows);
145 TAILQ_REMOVE(&owindows, current, owindows);
148 memset(¤t_match, 0, sizeof(Match));
157 match optwhitespace operations
161 | matchstart optwhitespace criteria optwhitespace matchend
163 printf("match parsed\n");
171 memset(¤t_match, '\0', sizeof(Match));
172 TAILQ_INIT(&owindows);
175 TAILQ_FOREACH(con, &all_cons, all_cons) {
176 owindow *ow = smalloc(sizeof(owindow));
178 TAILQ_INSERT_TAIL(&owindows, ow, owindows);
186 owindow *next, *current;
188 printf("match specification finished, matching...\n");
189 /* copy the old list head to iterate through it and start with a fresh
190 * list which will contain only matching windows */
191 struct owindows_head old = owindows;
192 TAILQ_INIT(&owindows);
193 for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
194 /* make a copy of the next pointer and advance the pointer to the
195 * next element as we are going to invalidate the element’s
196 * next/prev pointers by calling TAILQ_INSERT_TAIL later */
198 next = TAILQ_NEXT(next, owindows);
200 printf("checking if con %p / %s matches\n", current->con, current->con->name);
201 if (current_match.con_id != NULL) {
202 if (current_match.con_id == current->con) {
203 printf("matches container!\n");
204 TAILQ_INSERT_TAIL(&owindows, current, owindows);
208 if (current->con->window == NULL)
210 if (match_matches_window(¤t_match, current->con->window)) {
211 printf("matches window!\n");
212 TAILQ_INSERT_TAIL(&owindows, current, owindows);
214 printf("doesnt match\n");
220 TAILQ_FOREACH(current, &owindows, owindows) {
221 printf("matching: %p / %s\n", current->con, current->con->name);
230 printf("criteria: class = %s\n", $<string>3);
231 current_match.class = $<string>3;
235 printf("criteria: id = %s\n", $<string>3);
236 /* TODO: correctly parse number */
237 current_match.con_id = atoi($<string>3);
238 printf("id as int = %d\n", current_match.con_id);
244 | operation optwhitespace
245 | operations ',' optwhitespace operation
272 TOK_EXEC WHITESPACE STR
274 printf("should execute %s\n", $<string>3);
275 start_application($<string>3);
282 printf("exit, bye bye\n");
290 printf("restarting i3\n");
298 printf("should attach\n");
305 printf("should focus\n");
314 printf("killing!\n");
315 /* check if the match is empty, not if the result is empty */
316 if (match_is_empty(¤t_match))
319 TAILQ_FOREACH(current, &owindows, owindows) {
320 printf("matching: %p / %s\n", current->con, current->con->name);
321 tree_close(current->con);
329 TOK_WORKSPACE WHITESPACE STR
331 printf("should switch to workspace %s\n", $<string>3);
332 workspace_show($<string>3);
340 printf("opening new container\n");
348 printf("toggling fullscreen\n");
351 /* check if the match is empty, not if the result is empty */
352 if (match_is_empty(¤t_match))
353 con_toggle_fullscreen(focused);
355 TAILQ_FOREACH(current, &owindows, owindows) {
356 printf("matching: %p / %s\n", current->con, current->con->name);
357 con_toggle_fullscreen(current->con);
365 TOK_NEXT WHITESPACE direction
367 /* TODO: use matches */
368 printf("should select next window in direction %c\n", $<chr>3);
369 tree_next('n', ($<chr>3 == 'v' ? VERT : HORIZ));
374 TOK_PREV WHITESPACE direction
376 /* TODO: use matches */
377 printf("should select prev window in direction %c\n", $<chr>3);
378 tree_next('p', ($<chr>3 == 'v' ? VERT : HORIZ));
383 TOK_SPLIT WHITESPACE direction
385 /* TODO: use matches */
386 printf("splitting in direction %c\n", $<chr>3);
387 tree_split(focused, ($<chr>3 == 'v' ? VERT : HORIZ));
392 TOK_HORIZONTAL { $<chr>$ = 'h'; }
393 | 'h' { $<chr>$ = 'h'; }
394 | TOK_VERTICAL { $<chr>$ = 'v'; }
395 | 'v' { $<chr>$ = 'v'; }
399 TOK_MODE WHITESPACE window_mode
401 printf("should switch mode to %s\n", ($<number>3 == TOK_FLOATING ? "floating" : "tiling"));
402 /* TODO: actually switch mode (not toggle) */
407 TOK_FLOATING { $<number>$ = TOK_FLOATING; }
408 | TOK_TILING { $<number>$ = TOK_TILING; }
412 TOK_LEVEL WHITESPACE level_direction
414 printf("level %c\n", $<chr>3);
422 TOK_UP { $<chr>$ = 'u'; }
423 | TOK_DOWN { $<chr>$ = 'd'; }
427 TOK_MOVE WHITESPACE before_after WHITESPACE direction
429 printf("moving: %s and %c\n", ($<number>3 == TOK_BEFORE ? "before" : "after"), $<chr>5);
430 /* TODO: change API for the next call, we need to convert in both directions while ideally
431 * we should not need any of both */
432 tree_move(($<number>3 == TOK_BEFORE ? 'p' : 'n'), ($<chr>5 == 'v' ? VERT : HORIZ));
437 TOK_BEFORE { $<number>$ = TOK_BEFORE; }
438 | TOK_AFTER { $<number>$ = TOK_AFTER; }
442 TOK_RESTORE WHITESPACE STR
444 printf("restoring \"%s\"\n", $<string>3);
445 tree_append_json($<string>3);