22 #include "workspace.h"
26 typedef struct yy_buffer_state *YY_BUFFER_STATE;
27 extern int yylex(struct context *context);
28 extern int yyparse(void);
30 YY_BUFFER_STATE yy_scan_string(const char *);
32 static struct bindings_head *current_bindings;
33 static struct context *context;
35 /* We don’t need yydebug for now, as we got decent error messages using
36 * yyerror(). Should you ever want to extend the parser, it might be handy
37 * to just comment it in again, so it stays here. */
40 void yyerror(const char *error_message) {
42 ELOG("CONFIG: %s\n", error_message);
43 ELOG("CONFIG: in file \"%s\", line %d:\n",
44 context->filename, context->line_number);
45 ELOG("CONFIG: %s\n", context->line_copy);
47 for (int c = 1; c <= context->last_column; c++)
48 if (c >= context->first_column)
59 void parse_file(const char *f) {
60 SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
61 int fd, ret, read_bytes = 0;
65 char buffer[1026], key[512], value[512];
67 if ((fd = open(f, O_RDONLY)) == -1)
68 die("Could not open configuration file: %s\n", strerror(errno));
70 if (fstat(fd, &stbuf) == -1)
71 die("Could not fstat file: %s\n", strerror(errno));
73 buf = scalloc((stbuf.st_size + 1) * sizeof(char));
74 while (read_bytes < stbuf.st_size) {
75 if ((ret = read(fd, buf + read_bytes, (stbuf.st_size - read_bytes))) < 0)
76 die("Could not read(): %s\n", strerror(errno));
80 if (lseek(fd, 0, SEEK_SET) == (off_t)-1)
81 die("Could not lseek: %s\n", strerror(errno));
83 if ((fstr = fdopen(fd, "r")) == NULL)
84 die("Could not fdopen: %s\n", strerror(errno));
87 if (fgets(buffer, 1024, fstr) == NULL) {
90 die("Could not read configuration file\n");
93 /* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
94 if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
95 key[0] == '#' || strlen(key) < 3)
98 if (strcasecmp(key, "set") == 0) {
100 die("Malformed variable assignment, name has to start with $\n");
102 /* get key/value for this variable */
103 char *v_key = value, *v_value;
104 if ((v_value = strstr(value, " ")) == NULL)
105 die("Malformed variable assignment, need a value\n");
109 struct Variable *new = scalloc(sizeof(struct Variable));
110 new->key = sstrdup(v_key);
111 new->value = sstrdup(v_value);
112 SLIST_INSERT_HEAD(&variables, new, variables);
113 DLOG("Got new variable %s = %s\n", v_key, v_value);
118 /* For every custom variable, see how often it occurs in the file and
119 * how much extra bytes it requires when replaced. */
120 struct Variable *current, *nearest;
122 SLIST_FOREACH(current, &variables, variables) {
123 int extra = (strlen(current->value) - strlen(current->key));
126 (next = strcasestr(buf + (next - buf), current->key)) != NULL;
127 next += strlen(current->key))
128 extra_bytes += extra;
131 /* Then, allocate a new buffer and copy the file over to the new one,
132 * but replace occurences of our variables */
133 char *walk = buf, *destwalk;
134 char *new = smalloc((stbuf.st_size + extra_bytes + 1) * sizeof(char));
136 while (walk < (buf + stbuf.st_size)) {
137 /* Find the next variable */
138 SLIST_FOREACH(current, &variables, variables)
139 current->next_match = strcasestr(walk, current->key);
141 int distance = stbuf.st_size;
142 SLIST_FOREACH(current, &variables, variables) {
143 if (current->next_match == NULL)
145 if ((current->next_match - walk) < distance) {
146 distance = (current->next_match - walk);
150 if (nearest == NULL) {
151 /* If there are no more variables, we just copy the rest */
152 strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
153 destwalk += (buf + stbuf.st_size) - walk;
157 /* Copy until the next variable, then copy its value */
158 strncpy(destwalk, walk, distance);
159 strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
160 walk += distance + strlen(nearest->key);
161 destwalk += distance + strlen(nearest->value);
167 context = scalloc(sizeof(struct context));
168 context->filename = f;
170 if (yyparse() != 0) {
171 fprintf(stderr, "Could not parse configfile\n");
175 FREE(context->line_copy);
180 while (!SLIST_EMPTY(&variables)) {
181 current = SLIST_FIRST(&variables);
183 FREE(current->value);
184 SLIST_REMOVE_HEAD(&variables, variables);
193 %lex-param { struct context *context }
198 struct Colortriple *color;
199 struct Assignment *assignment;
200 struct Binding *binding;
203 %token <number>NUMBER "<number>"
204 %token <string>WORD "<word>"
205 %token <string>STR "<string>"
206 %token <string>STR_NG "<string (non-greedy)>"
207 %token <string>HEX "<hex>"
208 %token <string>OUTPUT "<RandR output>"
211 %token TOKCOMMENT "<comment>"
212 %token TOKFONT "font"
213 %token TOKBINDSYM "bindsym"
214 %token MODIFIER "<modifier>"
215 %token TOKCONTROL "control"
216 %token TOKSHIFT "shift"
217 %token WHITESPACE "<whitespace>"
218 %token TOKFLOATING_MODIFIER "floating_modifier"
219 %token QUOTEDSTRING "<quoted string>"
220 %token TOKWORKSPACE "workspace"
221 %token TOKOUTPUT "output"
222 %token TOKASSIGN "assign"
224 %token TOKIPCSOCKET "ipc_socket"
225 %token TOKEXEC "exec"
227 %token TOKARROW "→"
228 %token TOKMODE "mode"
229 %token TOKNEWCONTAINER "new_container"
230 %token TOKNEWWINDOW "new_window"
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
273 TAILQ_INSERT_TAIL(bindings, $<binding>1, bindings);
278 TOKBIND WHITESPACE bind { $<binding>$ = $<binding>3; }
279 | TOKBINDSYM WHITESPACE bindsym { $<binding>$ = $<binding>3; }
283 binding_modifiers NUMBER WHITESPACE command
285 printf("\tFound binding mod%d with key %d and command %s\n", $<number>1, $2, $<string>4);
286 Binding *new = scalloc(sizeof(Binding));
288 new->keycode = $<number>2;
289 new->mods = $<number>1;
290 new->command = $<string>4;
297 binding_modifiers word_or_number WHITESPACE command
299 printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>1, $<string>2, $<string>4);
300 Binding *new = scalloc(sizeof(Binding));
302 new->symbol = $<string>2;
303 new->mods = $<number>1;
304 new->command = $<string>4;
314 asprintf(&$<string>$, "%d", $1);
319 TOKMODE WHITESPACE QUOTEDSTRING WHITESPACE '{' modelines '}'
321 if (strcasecmp($<string>3, "default") == 0) {
322 printf("You cannot use the name \"default\" for your mode\n");
325 printf("\t now in mode %s\n", $<string>3);
326 printf("\t current bindings = %p\n", current_bindings);
328 TAILQ_FOREACH(binding, current_bindings, bindings) {
329 printf("got binding on mods %d, keycode %d, symbol %s, command %s\n",
330 binding->mods, binding->keycode, binding->symbol, binding->command);
333 struct Mode *mode = scalloc(sizeof(struct Mode));
334 mode->name = $<string>3;
335 mode->bindings = current_bindings;
336 current_bindings = NULL;
337 SLIST_INSERT_HEAD(&modes, mode, modes);
352 if (current_bindings == NULL) {
353 current_bindings = scalloc(sizeof(struct bindings_head));
354 TAILQ_INIT(current_bindings);
357 TAILQ_INSERT_TAIL(current_bindings, $<binding>1, bindings);
362 TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
364 DLOG("floating modifier = %d\n", $<number>3);
365 config.floating_modifier = $<number>3;
370 TOKNEWCONTAINER WHITESPACE TOKCONTAINERMODE
372 DLOG("new containers will be in mode %d\n", $<number>3);
373 config.container_mode = $<number>3;
375 /* We also need to change the layout of the already existing
376 * workspaces here. Workspaces may exist at this point because
377 * of the other directives which are modifying workspaces
378 * (setting the preferred screen or name). While the workspace
379 * objects are already created, they have never been used.
380 * Thus, the user very likely awaits the default container mode
381 * to trigger in this case, regardless of where it is inside
382 * his configuration file. */
384 TAILQ_FOREACH(ws, workspaces, workspaces) {
385 if (ws->table == NULL)
387 switch_layout_mode(global_conn,
389 config.container_mode);
392 | TOKNEWCONTAINER WHITESPACE TOKSTACKLIMIT WHITESPACE TOKSTACKLIMIT WHITESPACE NUMBER
394 DLOG("stack-limit %d with val %d\n", $<number>5, $<number>7);
395 config.container_stack_limit = $<number>5;
396 config.container_stack_limit_value = $<number>7;
398 /* See the comment above */
400 TAILQ_FOREACH(ws, workspaces, workspaces) {
401 if (ws->table == NULL)
403 Container *con = ws->table[0][0];
404 con->stack_limit = config.container_stack_limit;
405 con->stack_limit_value = config.container_stack_limit_value;
411 TOKNEWWINDOW WHITESPACE WORD
413 DLOG("new windows should start in mode %s\n", $<string>3);
414 config.default_border = sstrdup($<string>3);
421 $<number>$ = ($<number>1 == 1);
425 DLOG("checking word \"%s\"\n", $<string>1);
426 $<number>$ = (strcasecmp($<string>1, "yes") == 0 ||
427 strcasecmp($<string>1, "true") == 0 ||
428 strcasecmp($<string>1, "on") == 0 ||
429 strcasecmp($<string>1, "enable") == 0 ||
430 strcasecmp($<string>1, "active") == 0);
435 TOKFOCUSFOLLOWSMOUSE WHITESPACE bool
437 DLOG("focus follows mouse = %d\n", $<number>3);
438 config.disable_focus_follows_mouse = !($<number>3);
443 TOKWORKSPACEBAR WHITESPACE bool
445 DLOG("workspace bar = %d\n", $<number>3);
446 config.disable_workspace_bar = !($<number>3);
451 TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKOUTPUT WHITESPACE OUTPUT optional_workspace_name
453 int ws_num = $<number>3;
455 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
457 Workspace *ws = workspace_get(ws_num - 1);
458 ws->preferred_output = $<string>7;
459 if ($<string>8 != NULL) {
460 workspace_set_name(ws, $<string>8);
465 | TOKWORKSPACE WHITESPACE NUMBER WHITESPACE workspace_name
467 int ws_num = $<number>3;
469 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
471 DLOG("workspace name to: %s\n", $<string>5);
472 if ($<string>5 != NULL) {
473 workspace_set_name(workspace_get(ws_num - 1), $<string>5);
480 optional_workspace_name:
481 /* empty */ { $<string>$ = NULL; }
482 | WHITESPACE workspace_name { $<string>$ = $<string>2; }
486 QUOTEDSTRING { $<string>$ = $<string>1; }
487 | STR { $<string>$ = $<string>1; }
488 | WORD { $<string>$ = $<string>1; }
492 TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
494 printf("assignment of %s\n", $<string>3);
496 struct Assignment *new = $<assignment>6;
497 printf(" to %d\n", new->workspace);
498 printf(" floating = %d\n", new->floating);
499 new->windowclass_title = $<string>3;
500 TAILQ_INSERT_TAIL(&assignments, new, assignments);
507 struct Assignment *new = scalloc(sizeof(struct Assignment));
508 new->workspace = $<number>1;
509 new->floating = ASSIGN_FLOATING_NO;
510 $<assignment>$ = new;
514 struct Assignment *new = scalloc(sizeof(struct Assignment));
515 new->floating = ASSIGN_FLOATING_ONLY;
516 $<assignment>$ = new;
520 struct Assignment *new = scalloc(sizeof(struct Assignment));
521 new->workspace = $<number>2;
522 new->floating = ASSIGN_FLOATING;
523 $<assignment>$ = new;
534 | TOKARROW WHITESPACE
538 TOKIPCSOCKET WHITESPACE STR
540 config.ipc_socket_path = $<string>3;
545 TOKEXEC WHITESPACE STR
547 struct Autostart *new = smalloc(sizeof(struct Autostart));
548 new->command = $<string>3;
549 TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
554 TOKTERMINAL WHITESPACE STR
556 ELOG("The terminal option is DEPRECATED and has no effect. "
557 "Please remove it from your configuration file.\n");
562 TOKFONT WHITESPACE STR
564 config.font = $<string>3;
565 printf("font %s\n", config.font);
571 TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
573 struct Colortriple *dest = $<color>1;
575 dest->border = $<number>3;
576 dest->background = $<number>5;
577 dest->text = $<number>7;
585 if (asprintf(&hex, "#%s", $<string>2) == -1)
587 $<number>$ = get_colorpixel(global_conn, hex);
594 /* NULL */ { $<number>$ = 0; }
596 | binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
597 | binding_modifiers '+' { $<number>$ = $<number>1; }
601 MODIFIER { $<number>$ = $<number>1; }
602 | TOKCONTROL { $<number>$ = BIND_CONTROL; }
603 | TOKSHIFT { $<number>$ = BIND_SHIFT; }