13 typedef struct yy_buffer_state *YY_BUFFER_STATE;
14 extern int yylex(struct context *context);
15 extern int yyparse(void);
17 YY_BUFFER_STATE yy_scan_string(const char *);
19 static struct bindings_head *current_bindings;
20 static struct context *context;
22 /* We don’t need yydebug for now, as we got decent error messages using
23 * yyerror(). Should you ever want to extend the parser, it might be handy
24 * to just comment it in again, so it stays here. */
27 void yyerror(const char *error_message) {
29 ELOG("CONFIG: %s\n", error_message);
30 ELOG("CONFIG: in file \"%s\", line %d:\n",
31 context->filename, context->line_number);
32 ELOG("CONFIG: %s\n", context->line_copy);
34 for (int c = 1; c <= context->last_column; c++)
35 if (c >= context->first_column)
46 void parse_file(const char *f) {
47 SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
48 int fd, ret, read_bytes = 0;
52 char buffer[1026], key[512], value[512];
54 if ((fd = open(f, O_RDONLY)) == -1)
55 die("Could not open configuration file: %s\n", strerror(errno));
57 if (fstat(fd, &stbuf) == -1)
58 die("Could not fstat file: %s\n", strerror(errno));
60 buf = scalloc((stbuf.st_size + 1) * sizeof(char));
61 while (read_bytes < stbuf.st_size) {
62 if ((ret = read(fd, buf + read_bytes, (stbuf.st_size - read_bytes))) < 0)
63 die("Could not read(): %s\n", strerror(errno));
67 if (lseek(fd, 0, SEEK_SET) == (off_t)-1)
68 die("Could not lseek: %s\n", strerror(errno));
70 if ((fstr = fdopen(fd, "r")) == NULL)
71 die("Could not fdopen: %s\n", strerror(errno));
74 if (fgets(buffer, 1024, fstr) == NULL) {
77 die("Could not read configuration file\n");
80 /* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
81 if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
82 key[0] == '#' || strlen(key) < 3)
85 if (strcasecmp(key, "set") == 0) {
87 die("Malformed variable assignment, name has to start with $\n");
89 /* get key/value for this variable */
90 char *v_key = value, *v_value;
91 if ((v_value = strstr(value, " ")) == NULL)
92 die("Malformed variable assignment, need a value\n");
96 struct Variable *new = scalloc(sizeof(struct Variable));
97 new->key = sstrdup(v_key);
98 new->value = sstrdup(v_value);
99 SLIST_INSERT_HEAD(&variables, new, variables);
100 DLOG("Got new variable %s = %s\n", v_key, v_value);
105 /* For every custom variable, see how often it occurs in the file and
106 * how much extra bytes it requires when replaced. */
107 struct Variable *current, *nearest;
109 /* We need to copy the buffer because we need to invalidate the
110 * variables (otherwise we will count them twice, which is bad when
111 * 'extra' is negative) */
112 char *bufcopy = sstrdup(buf);
113 SLIST_FOREACH(current, &variables, variables) {
114 int extra = (strlen(current->value) - strlen(current->key));
117 (next = strcasestr(bufcopy + (next - bufcopy), current->key)) != NULL;
118 next += strlen(current->key)) {
120 extra_bytes += extra;
125 /* Then, allocate a new buffer and copy the file over to the new one,
126 * but replace occurences of our variables */
127 char *walk = buf, *destwalk;
128 char *new = smalloc((stbuf.st_size + extra_bytes + 1) * sizeof(char));
130 while (walk < (buf + stbuf.st_size)) {
131 /* Find the next variable */
132 SLIST_FOREACH(current, &variables, variables)
133 current->next_match = strcasestr(walk, current->key);
135 int distance = stbuf.st_size;
136 SLIST_FOREACH(current, &variables, variables) {
137 if (current->next_match == NULL)
139 if ((current->next_match - walk) < distance) {
140 distance = (current->next_match - walk);
144 if (nearest == NULL) {
145 /* If there are no more variables, we just copy the rest */
146 strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
147 destwalk += (buf + stbuf.st_size) - walk;
151 /* Copy until the next variable, then copy its value */
152 strncpy(destwalk, walk, distance);
153 strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
154 walk += distance + strlen(nearest->key);
155 destwalk += distance + strlen(nearest->value);
161 context = scalloc(sizeof(struct context));
162 context->filename = f;
164 if (yyparse() != 0) {
165 fprintf(stderr, "Could not parse configfile\n");
169 FREE(context->line_copy);
174 while (!SLIST_EMPTY(&variables)) {
175 current = SLIST_FIRST(&variables);
177 FREE(current->value);
178 SLIST_REMOVE_HEAD(&variables, variables);
187 %lex-param { struct context *context }
192 uint32_t *single_color;
193 struct Colortriple *color;
194 struct Assignment *assignment;
195 struct Binding *binding;
198 %token <number>NUMBER "<number>"
199 %token <string>WORD "<word>"
200 %token <string>STR "<string>"
201 %token <string>STR_NG "<string (non-greedy)>"
202 %token <string>HEX "<hex>"
203 %token <string>OUTPUT "<RandR output>"
206 %token TOKCOMMENT "<comment>"
207 %token TOKFONT "font"
208 %token TOKBINDSYM "bindsym"
209 %token MODIFIER "<modifier>"
210 %token TOKCONTROL "control"
211 %token TOKSHIFT "shift"
212 %token WHITESPACE "<whitespace>"
213 %token TOKFLOATING_MODIFIER "floating_modifier"
214 %token QUOTEDSTRING "<quoted string>"
215 %token TOKWORKSPACE "workspace"
216 %token TOKOUTPUT "output"
217 %token TOKASSIGN "assign"
219 %token TOKIPCSOCKET "ipc_socket"
220 %token TOKRESTARTSTATE "restart_state"
221 %token TOKEXEC "exec"
222 %token TOKSINGLECOLOR
224 %token TOKARROW "→"
225 %token TOKMODE "mode"
226 %token TOKNEWCONTAINER "new_container"
227 %token TOKNEWWINDOW "new_window"
228 %token TOK_NORMAL "normal"
229 %token TOK_NONE "none"
230 %token TOK_1PIXEL "1pixel"
231 %token TOKFOCUSFOLLOWSMOUSE "focus_follows_mouse"
232 %token TOKWORKSPACEBAR "workspace_bar"
233 %token TOKCONTAINERMODE "default/stacking/tabbed"
234 %token TOKSTACKLIMIT "stack-limit"
239 | lines WHITESPACE line
250 | focus_follows_mouse
275 TAILQ_INSERT_TAIL(bindings, $<binding>1, bindings);
280 TOKBIND WHITESPACE bind { $<binding>$ = $<binding>3; }
281 | TOKBINDSYM WHITESPACE bindsym { $<binding>$ = $<binding>3; }
285 binding_modifiers NUMBER WHITESPACE command
287 printf("\tFound binding mod%d with key %d and command %s\n", $<number>1, $2, $<string>4);
288 Binding *new = scalloc(sizeof(Binding));
290 new->keycode = $<number>2;
291 new->mods = $<number>1;
292 new->command = $<string>4;
299 binding_modifiers word_or_number WHITESPACE command
301 printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>1, $<string>2, $<string>4);
302 Binding *new = scalloc(sizeof(Binding));
304 new->symbol = $<string>2;
305 new->mods = $<number>1;
306 new->command = $<string>4;
316 asprintf(&$<string>$, "%d", $1);
321 TOKMODE WHITESPACE QUOTEDSTRING WHITESPACE '{' modelines '}'
323 if (strcasecmp($<string>3, "default") == 0) {
324 printf("You cannot use the name \"default\" for your mode\n");
327 printf("\t now in mode %s\n", $<string>3);
328 printf("\t current bindings = %p\n", current_bindings);
330 TAILQ_FOREACH(binding, current_bindings, bindings) {
331 printf("got binding on mods %d, keycode %d, symbol %s, command %s\n",
332 binding->mods, binding->keycode, binding->symbol, binding->command);
335 struct Mode *mode = scalloc(sizeof(struct Mode));
336 mode->name = $<string>3;
337 mode->bindings = current_bindings;
338 current_bindings = NULL;
339 SLIST_INSERT_HEAD(&modes, mode, modes);
354 if (current_bindings == NULL) {
355 current_bindings = scalloc(sizeof(struct bindings_head));
356 TAILQ_INIT(current_bindings);
359 TAILQ_INSERT_TAIL(current_bindings, $<binding>1, bindings);
364 TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
366 DLOG("floating modifier = %d\n", $<number>3);
367 config.floating_modifier = $<number>3;
372 TOKNEWCONTAINER WHITESPACE TOKCONTAINERMODE
374 DLOG("new containers will be in mode %d\n", $<number>3);
375 config.container_mode = $<number>3;
378 /* We also need to change the layout of the already existing
379 * workspaces here. Workspaces may exist at this point because
380 * of the other directives which are modifying workspaces
381 * (setting the preferred screen or name). While the workspace
382 * objects are already created, they have never been used.
383 * Thus, the user very likely awaits the default container mode
384 * to trigger in this case, regardless of where it is inside
385 * his configuration file. */
387 TAILQ_FOREACH(ws, workspaces, workspaces) {
388 if (ws->table == NULL)
390 switch_layout_mode(global_conn,
392 config.container_mode);
396 | TOKNEWCONTAINER WHITESPACE TOKSTACKLIMIT WHITESPACE TOKSTACKLIMIT WHITESPACE NUMBER
398 DLOG("stack-limit %d with val %d\n", $<number>5, $<number>7);
399 config.container_stack_limit = $<number>5;
400 config.container_stack_limit_value = $<number>7;
403 /* See the comment above */
405 TAILQ_FOREACH(ws, workspaces, workspaces) {
406 if (ws->table == NULL)
408 Container *con = ws->table[0][0];
409 con->stack_limit = config.container_stack_limit;
410 con->stack_limit_value = config.container_stack_limit_value;
417 TOKNEWWINDOW WHITESPACE border_style
419 DLOG("new windows should start with border style %d\n", $<number>3);
420 config.default_border = $<number>3;
425 TOK_NORMAL { $<number>$ = BS_NORMAL; }
426 | TOK_NONE { $<number>$ = BS_NONE; }
427 | TOK_1PIXEL { $<number>$ = BS_1PIXEL; }
433 $<number>$ = ($<number>1 == 1);
437 DLOG("checking word \"%s\"\n", $<string>1);
438 $<number>$ = (strcasecmp($<string>1, "yes") == 0 ||
439 strcasecmp($<string>1, "true") == 0 ||
440 strcasecmp($<string>1, "on") == 0 ||
441 strcasecmp($<string>1, "enable") == 0 ||
442 strcasecmp($<string>1, "active") == 0);
447 TOKFOCUSFOLLOWSMOUSE WHITESPACE bool
449 DLOG("focus follows mouse = %d\n", $<number>3);
450 config.disable_focus_follows_mouse = !($<number>3);
455 TOKWORKSPACEBAR WHITESPACE bool
457 DLOG("workspace bar = %d\n", $<number>3);
458 config.disable_workspace_bar = !($<number>3);
463 TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKOUTPUT WHITESPACE OUTPUT optional_workspace_name
465 int ws_num = $<number>3;
467 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
470 Workspace *ws = workspace_get(ws_num - 1);
471 ws->preferred_output = $<string>7;
472 if ($<string>8 != NULL) {
473 workspace_set_name(ws, $<string>8);
479 | TOKWORKSPACE WHITESPACE NUMBER WHITESPACE workspace_name
481 int ws_num = $<number>3;
483 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
485 DLOG("workspace name to: %s\n", $<string>5);
487 if ($<string>5 != NULL) {
488 workspace_set_name(workspace_get(ws_num - 1), $<string>5);
496 optional_workspace_name:
497 /* empty */ { $<string>$ = NULL; }
498 | WHITESPACE workspace_name { $<string>$ = $<string>2; }
502 QUOTEDSTRING { $<string>$ = $<string>1; }
503 | STR { $<string>$ = $<string>1; }
504 | WORD { $<string>$ = $<string>1; }
508 TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
511 printf("assignment of %s\n", $<string>3);
513 struct Assignment *new = $<assignment>6;
514 printf(" to %d\n", new->workspace);
515 printf(" floating = %d\n", new->floating);
516 new->windowclass_title = $<string>3;
517 TAILQ_INSERT_TAIL(&assignments, new, assignments);
526 struct Assignment *new = scalloc(sizeof(struct Assignment));
527 new->workspace = $<number>1;
528 new->floating = ASSIGN_FLOATING_NO;
529 $<assignment>$ = new;
535 struct Assignment *new = scalloc(sizeof(struct Assignment));
536 new->floating = ASSIGN_FLOATING_ONLY;
537 $<assignment>$ = new;
543 struct Assignment *new = scalloc(sizeof(struct Assignment));
544 new->workspace = $<number>2;
545 new->floating = ASSIGN_FLOATING;
546 $<assignment>$ = new;
558 | TOKARROW WHITESPACE
562 TOKIPCSOCKET WHITESPACE STR
564 config.ipc_socket_path = $<string>3;
569 TOKRESTARTSTATE WHITESPACE STR
571 config.restart_state_path = $<string>3;
576 TOKEXEC WHITESPACE STR
578 struct Autostart *new = smalloc(sizeof(struct Autostart));
579 new->command = $<string>3;
580 TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
585 TOKTERMINAL WHITESPACE STR
587 ELOG("The terminal option is DEPRECATED and has no effect. "
588 "Please remove it from your configuration file.\n");
593 TOKFONT WHITESPACE STR
595 config.font = $<string>3;
596 printf("font %s\n", config.font);
601 TOKSINGLECOLOR WHITESPACE colorpixel
603 uint32_t *dest = $<single_color>1;
609 TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
611 struct Colortriple *dest = $<color>1;
613 dest->border = $<number>3;
614 dest->background = $<number>5;
615 dest->text = $<number>7;
623 if (asprintf(&hex, "#%s", $<string>2) == -1)
625 $<number>$ = get_colorpixel(hex);
632 /* NULL */ { $<number>$ = 0; }
634 | binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
635 | binding_modifiers '+' { $<number>$ = $<number>1; }
639 MODIFIER { $<number>$ = $<number>1; }
640 | TOKCONTROL { $<number>$ = BIND_CONTROL; }
641 | TOKSHIFT { $<number>$ = BIND_SHIFT; }