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 SLIST_FOREACH(current, &variables, variables) {
110 int extra = (strlen(current->value) - strlen(current->key));
113 (next = strcasestr(buf + (next - buf), current->key)) != NULL;
114 next += strlen(current->key))
115 extra_bytes += extra;
118 /* Then, allocate a new buffer and copy the file over to the new one,
119 * but replace occurences of our variables */
120 char *walk = buf, *destwalk;
121 char *new = smalloc((stbuf.st_size + extra_bytes + 1) * sizeof(char));
123 while (walk < (buf + stbuf.st_size)) {
124 /* Find the next variable */
125 SLIST_FOREACH(current, &variables, variables)
126 current->next_match = strcasestr(walk, current->key);
128 int distance = stbuf.st_size;
129 SLIST_FOREACH(current, &variables, variables) {
130 if (current->next_match == NULL)
132 if ((current->next_match - walk) < distance) {
133 distance = (current->next_match - walk);
137 if (nearest == NULL) {
138 /* If there are no more variables, we just copy the rest */
139 strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
140 destwalk += (buf + stbuf.st_size) - walk;
144 /* Copy until the next variable, then copy its value */
145 strncpy(destwalk, walk, distance);
146 strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
147 walk += distance + strlen(nearest->key);
148 destwalk += distance + strlen(nearest->value);
154 context = scalloc(sizeof(struct context));
155 context->filename = f;
157 if (yyparse() != 0) {
158 fprintf(stderr, "Could not parse configfile\n");
162 FREE(context->line_copy);
167 while (!SLIST_EMPTY(&variables)) {
168 current = SLIST_FIRST(&variables);
170 FREE(current->value);
171 SLIST_REMOVE_HEAD(&variables, variables);
180 %lex-param { struct context *context }
185 struct Colortriple *color;
186 struct Assignment *assignment;
187 struct Binding *binding;
190 %token <number>NUMBER "<number>"
191 %token <string>WORD "<word>"
192 %token <string>STR "<string>"
193 %token <string>STR_NG "<string (non-greedy)>"
194 %token <string>HEX "<hex>"
195 %token <string>OUTPUT "<RandR output>"
198 %token TOKCOMMENT "<comment>"
199 %token TOKFONT "font"
200 %token TOKBINDSYM "bindsym"
201 %token MODIFIER "<modifier>"
202 %token TOKCONTROL "control"
203 %token TOKSHIFT "shift"
204 %token WHITESPACE "<whitespace>"
205 %token TOKFLOATING_MODIFIER "floating_modifier"
206 %token QUOTEDSTRING "<quoted string>"
207 %token TOKWORKSPACE "workspace"
208 %token TOKOUTPUT "output"
209 %token TOKASSIGN "assign"
211 %token TOKIPCSOCKET "ipc_socket"
212 %token TOKEXEC "exec"
214 %token TOKARROW "→"
215 %token TOKMODE "mode"
216 %token TOKNEWCONTAINER "new_container"
217 %token TOKNEWWINDOW "new_window"
218 %token TOKFOCUSFOLLOWSMOUSE "focus_follows_mouse"
219 %token TOKWORKSPACEBAR "workspace_bar"
220 %token TOKCONTAINERMODE "default/stacking/tabbed"
221 %token TOKSTACKLIMIT "stack-limit"
226 | lines WHITESPACE line
237 | focus_follows_mouse
260 TAILQ_INSERT_TAIL(bindings, $<binding>1, bindings);
265 TOKBIND WHITESPACE bind { $<binding>$ = $<binding>3; }
266 | TOKBINDSYM WHITESPACE bindsym { $<binding>$ = $<binding>3; }
270 binding_modifiers NUMBER WHITESPACE command
272 printf("\tFound binding mod%d with key %d and command %s\n", $<number>1, $2, $<string>4);
273 Binding *new = scalloc(sizeof(Binding));
275 new->keycode = $<number>2;
276 new->mods = $<number>1;
277 new->command = $<string>4;
284 binding_modifiers word_or_number WHITESPACE command
286 printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>1, $<string>2, $<string>4);
287 Binding *new = scalloc(sizeof(Binding));
289 new->symbol = $<string>2;
290 new->mods = $<number>1;
291 new->command = $<string>4;
301 asprintf(&$<string>$, "%d", $1);
306 TOKMODE WHITESPACE QUOTEDSTRING WHITESPACE '{' modelines '}'
308 if (strcasecmp($<string>3, "default") == 0) {
309 printf("You cannot use the name \"default\" for your mode\n");
312 printf("\t now in mode %s\n", $<string>3);
313 printf("\t current bindings = %p\n", current_bindings);
315 TAILQ_FOREACH(binding, current_bindings, bindings) {
316 printf("got binding on mods %d, keycode %d, symbol %s, command %s\n",
317 binding->mods, binding->keycode, binding->symbol, binding->command);
320 struct Mode *mode = scalloc(sizeof(struct Mode));
321 mode->name = $<string>3;
322 mode->bindings = current_bindings;
323 current_bindings = NULL;
324 SLIST_INSERT_HEAD(&modes, mode, modes);
339 if (current_bindings == NULL) {
340 current_bindings = scalloc(sizeof(struct bindings_head));
341 TAILQ_INIT(current_bindings);
344 TAILQ_INSERT_TAIL(current_bindings, $<binding>1, bindings);
349 TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
351 DLOG("floating modifier = %d\n", $<number>3);
352 config.floating_modifier = $<number>3;
357 TOKNEWCONTAINER WHITESPACE TOKCONTAINERMODE
359 DLOG("new containers will be in mode %d\n", $<number>3);
360 config.container_mode = $<number>3;
363 /* We also need to change the layout of the already existing
364 * workspaces here. Workspaces may exist at this point because
365 * of the other directives which are modifying workspaces
366 * (setting the preferred screen or name). While the workspace
367 * objects are already created, they have never been used.
368 * Thus, the user very likely awaits the default container mode
369 * to trigger in this case, regardless of where it is inside
370 * his configuration file. */
372 TAILQ_FOREACH(ws, workspaces, workspaces) {
373 if (ws->table == NULL)
375 switch_layout_mode(global_conn,
377 config.container_mode);
381 | TOKNEWCONTAINER WHITESPACE TOKSTACKLIMIT WHITESPACE TOKSTACKLIMIT WHITESPACE NUMBER
383 DLOG("stack-limit %d with val %d\n", $<number>5, $<number>7);
384 config.container_stack_limit = $<number>5;
385 config.container_stack_limit_value = $<number>7;
388 /* See the comment above */
390 TAILQ_FOREACH(ws, workspaces, workspaces) {
391 if (ws->table == NULL)
393 Container *con = ws->table[0][0];
394 con->stack_limit = config.container_stack_limit;
395 con->stack_limit_value = config.container_stack_limit_value;
402 TOKNEWWINDOW WHITESPACE WORD
404 DLOG("new windows should start in mode %s\n", $<string>3);
405 config.default_border = sstrdup($<string>3);
412 $<number>$ = ($<number>1 == 1);
416 DLOG("checking word \"%s\"\n", $<string>1);
417 $<number>$ = (strcasecmp($<string>1, "yes") == 0 ||
418 strcasecmp($<string>1, "true") == 0 ||
419 strcasecmp($<string>1, "on") == 0 ||
420 strcasecmp($<string>1, "enable") == 0 ||
421 strcasecmp($<string>1, "active") == 0);
426 TOKFOCUSFOLLOWSMOUSE WHITESPACE bool
428 DLOG("focus follows mouse = %d\n", $<number>3);
429 config.disable_focus_follows_mouse = !($<number>3);
434 TOKWORKSPACEBAR WHITESPACE bool
436 DLOG("workspace bar = %d\n", $<number>3);
437 config.disable_workspace_bar = !($<number>3);
442 TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKOUTPUT WHITESPACE OUTPUT optional_workspace_name
444 int ws_num = $<number>3;
446 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
449 Workspace *ws = workspace_get(ws_num - 1);
450 ws->preferred_output = $<string>7;
451 if ($<string>8 != NULL) {
452 workspace_set_name(ws, $<string>8);
458 | TOKWORKSPACE WHITESPACE NUMBER WHITESPACE workspace_name
460 int ws_num = $<number>3;
462 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
464 DLOG("workspace name to: %s\n", $<string>5);
466 if ($<string>5 != NULL) {
467 workspace_set_name(workspace_get(ws_num - 1), $<string>5);
475 optional_workspace_name:
476 /* empty */ { $<string>$ = NULL; }
477 | WHITESPACE workspace_name { $<string>$ = $<string>2; }
481 QUOTEDSTRING { $<string>$ = $<string>1; }
482 | STR { $<string>$ = $<string>1; }
483 | WORD { $<string>$ = $<string>1; }
487 TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
490 printf("assignment of %s\n", $<string>3);
492 struct Assignment *new = $<assignment>6;
493 printf(" to %d\n", new->workspace);
494 printf(" floating = %d\n", new->floating);
495 new->windowclass_title = $<string>3;
496 TAILQ_INSERT_TAIL(&assignments, new, assignments);
505 struct Assignment *new = scalloc(sizeof(struct Assignment));
506 new->workspace = $<number>1;
507 new->floating = ASSIGN_FLOATING_NO;
508 $<assignment>$ = new;
514 struct Assignment *new = scalloc(sizeof(struct Assignment));
515 new->floating = ASSIGN_FLOATING_ONLY;
516 $<assignment>$ = new;
522 struct Assignment *new = scalloc(sizeof(struct Assignment));
523 new->workspace = $<number>2;
524 new->floating = ASSIGN_FLOATING;
525 $<assignment>$ = new;
537 | TOKARROW WHITESPACE
541 TOKIPCSOCKET WHITESPACE STR
543 config.ipc_socket_path = $<string>3;
548 TOKEXEC WHITESPACE STR
550 struct Autostart *new = smalloc(sizeof(struct Autostart));
551 new->command = $<string>3;
552 TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
557 TOKTERMINAL WHITESPACE STR
559 ELOG("The terminal option is DEPRECATED and has no effect. "
560 "Please remove it from your configuration file.\n");
565 TOKFONT WHITESPACE STR
567 config.font = $<string>3;
568 printf("font %s\n", config.font);
574 TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
576 struct Colortriple *dest = $<color>1;
578 dest->border = $<number>3;
579 dest->background = $<number>5;
580 dest->text = $<number>7;
588 if (asprintf(&hex, "#%s", $<string>2) == -1)
590 $<number>$ = get_colorpixel(hex);
597 /* NULL */ { $<number>$ = 0; }
599 | binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
600 | binding_modifiers '+' { $<number>$ = $<number>1; }
604 MODIFIER { $<number>$ = $<number>1; }
605 | TOKCONTROL { $<number>$ = BIND_CONTROL; }
606 | TOKSHIFT { $<number>$ = BIND_SHIFT; }