3 * vim:ts=4:sw=4:expandtab
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);
106 /* For every custom variable, see how often it occurs in the file and
107 * how much extra bytes it requires when replaced. */
108 struct Variable *current, *nearest;
110 /* We need to copy the buffer because we need to invalidate the
111 * variables (otherwise we will count them twice, which is bad when
112 * 'extra' is negative) */
113 char *bufcopy = sstrdup(buf);
114 SLIST_FOREACH(current, &variables, variables) {
115 int extra = (strlen(current->value) - strlen(current->key));
118 (next = strcasestr(bufcopy + (next - bufcopy), current->key)) != NULL;
119 next += strlen(current->key)) {
121 extra_bytes += extra;
126 /* Then, allocate a new buffer and copy the file over to the new one,
127 * but replace occurences of our variables */
128 char *walk = buf, *destwalk;
129 char *new = smalloc((stbuf.st_size + extra_bytes + 1) * sizeof(char));
131 while (walk < (buf + stbuf.st_size)) {
132 /* Find the next variable */
133 SLIST_FOREACH(current, &variables, variables)
134 current->next_match = strcasestr(walk, current->key);
136 int distance = stbuf.st_size;
137 SLIST_FOREACH(current, &variables, variables) {
138 if (current->next_match == NULL)
140 if ((current->next_match - walk) < distance) {
141 distance = (current->next_match - walk);
145 if (nearest == NULL) {
146 /* If there are no more variables, we just copy the rest */
147 strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
148 destwalk += (buf + stbuf.st_size) - walk;
152 /* Copy until the next variable, then copy its value */
153 strncpy(destwalk, walk, distance);
154 strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
155 walk += distance + strlen(nearest->key);
156 destwalk += distance + strlen(nearest->value);
162 context = scalloc(sizeof(struct context));
163 context->filename = f;
165 if (yyparse() != 0) {
166 fprintf(stderr, "Could not parse configfile\n");
170 FREE(context->line_copy);
175 while (!SLIST_EMPTY(&variables)) {
176 current = SLIST_FIRST(&variables);
178 FREE(current->value);
179 SLIST_REMOVE_HEAD(&variables, variables);
188 %lex-param { struct context *context }
193 uint32_t *single_color;
194 struct Colortriple *color;
196 struct Binding *binding;
199 %token <number> NUMBER "<number>"
200 %token <string> WORD "<word>"
201 %token <string> STR "<string>"
202 %token <string> STR_NG "<string (non-greedy)>"
203 %token <string> HEX "<hex>"
204 %token <string> OUTPUT "<RandR output>"
207 %token TOKCOMMENT "<comment>"
208 %token TOKFONT "font"
209 %token TOKBINDSYM "bindsym"
210 %token <number> MODIFIER "<modifier>"
211 %token TOKCONTROL "control"
212 %token TOKSHIFT "shift"
213 %token WHITESPACE "<whitespace>"
214 %token TOKFLOATING_MODIFIER "floating_modifier"
215 %token <string> QUOTEDSTRING "<quoted string>"
216 %token TOKWORKSPACE "workspace"
217 %token TOKOUTPUT "output"
218 %token TOKASSIGN "assign"
220 %token TOKIPCSOCKET "ipc_socket"
221 %token TOKRESTARTSTATE "restart_state"
222 %token TOKEXEC "exec"
223 %token <single_color> TOKSINGLECOLOR
224 %token <color> TOKCOLOR
225 %token TOKARROW "→"
226 %token TOKMODE "mode"
227 %token TOK_ORIENTATION "default_orientation"
228 %token TOK_HORIZ "horizontal"
229 %token TOK_VERT "vertical"
230 %token TOK_AUTO "auto"
231 %token TOK_WORKSPACE_LAYOUT "workspace_layout"
232 %token TOKNEWWINDOW "new_window"
233 %token TOK_NORMAL "normal"
234 %token TOK_NONE "none"
235 %token TOK_1PIXEL "1pixel"
236 %token TOKFOCUSFOLLOWSMOUSE "focus_follows_mouse"
237 %token TOKWORKSPACEBAR "workspace_bar"
238 %token TOK_DEFAULT "default"
239 %token TOK_STACKING "stacking"
240 %token TOK_TABBED "tabbed"
241 %token <number> TOKSTACKLIMIT "stack-limit"
242 %token TOK_POPUP_DURING_FULLSCREEN "popup_during_fullscreen"
243 %token TOK_IGNORE "ignore"
244 %token TOK_LEAVE_FULLSCREEN "leave_fullscreen"
246 %type <binding> binding
247 %type <binding> bindcode
248 %type <binding> bindsym
249 %type <number> binding_modifiers
250 %type <number> binding_modifier
251 %type <number> direction
252 %type <number> layout_mode
253 %type <number> border_style
254 %type <number> new_window
255 %type <number> colorpixel
257 %type <number> popup_setting
258 %type <string> command
259 %type <string> word_or_number
260 %type <string> optional_workspace_name
261 %type <string> workspace_name
262 %type <string> window_class
263 %type <match> assign_target
268 | lines WHITESPACE line
280 | focus_follows_mouse
292 | popup_during_fullscreen
306 TAILQ_INSERT_TAIL(bindings, $1, bindings);
311 TOKBINDCODE WHITESPACE bindcode { $$ = $3; }
312 | TOKBINDSYM WHITESPACE bindsym { $$ = $3; }
316 binding_modifiers NUMBER WHITESPACE command
318 printf("\tFound keycode binding mod%d with key %d and command %s\n", $1, $2, $4);
319 Binding *new = scalloc(sizeof(Binding));
330 binding_modifiers word_or_number WHITESPACE command
332 printf("\tFound keysym binding mod%d with key %s and command %s\n", $1, $2, $4);
333 Binding *new = scalloc(sizeof(Binding));
347 asprintf(&$$, "%d", $1);
352 TOKMODE WHITESPACE QUOTEDSTRING WHITESPACE '{' modelines '}'
354 if (strcasecmp($3, "default") == 0) {
355 printf("You cannot use the name \"default\" for your mode\n");
358 printf("\t now in mode %s\n", $3);
359 printf("\t current bindings = %p\n", current_bindings);
361 TAILQ_FOREACH(binding, current_bindings, bindings) {
362 printf("got binding on mods %d, keycode %d, symbol %s, command %s\n",
363 binding->mods, binding->keycode, binding->symbol, binding->command);
366 struct Mode *mode = scalloc(sizeof(struct Mode));
368 mode->bindings = current_bindings;
369 current_bindings = NULL;
370 SLIST_INSERT_HEAD(&modes, mode, modes);
385 if (current_bindings == NULL) {
386 current_bindings = scalloc(sizeof(struct bindings_head));
387 TAILQ_INIT(current_bindings);
390 TAILQ_INSERT_TAIL(current_bindings, $1, bindings);
395 TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
397 DLOG("floating modifier = %d\n", $3);
398 config.floating_modifier = $3;
403 TOK_ORIENTATION WHITESPACE direction
405 DLOG("New containers should start with split direction %d\n", $3);
406 config.default_orientation = $3;
411 TOK_HORIZ { $$ = HORIZ; }
412 | TOK_VERT { $$ = VERT; }
413 | TOK_AUTO { $$ = NO_ORIENTATION; }
417 TOK_WORKSPACE_LAYOUT WHITESPACE layout_mode
419 DLOG("new containers will be in mode %d\n", $3);
420 config.default_layout = $3;
423 /* We also need to change the layout of the already existing
424 * workspaces here. Workspaces may exist at this point because
425 * of the other directives which are modifying workspaces
426 * (setting the preferred screen or name). While the workspace
427 * objects are already created, they have never been used.
428 * Thus, the user very likely awaits the default container mode
429 * to trigger in this case, regardless of where it is inside
430 * his configuration file. */
432 TAILQ_FOREACH(ws, workspaces, workspaces) {
433 if (ws->table == NULL)
435 switch_layout_mode(global_conn,
437 config.container_mode);
441 | TOK_WORKSPACE_LAYOUT WHITESPACE TOKSTACKLIMIT WHITESPACE TOKSTACKLIMIT WHITESPACE NUMBER
443 DLOG("stack-limit %d with val %d\n", $5, $7);
444 config.container_stack_limit = $5;
445 config.container_stack_limit_value = $7;
448 /* See the comment above */
450 TAILQ_FOREACH(ws, workspaces, workspaces) {
451 if (ws->table == NULL)
453 Container *con = ws->table[0][0];
454 con->stack_limit = config.container_stack_limit;
455 con->stack_limit_value = config.container_stack_limit_value;
462 TOK_DEFAULT { $$ = L_DEFAULT; }
463 | TOK_STACKING { $$ = L_STACKED; }
464 | TOK_TABBED { $$ = L_TABBED; }
468 TOKNEWWINDOW WHITESPACE border_style
470 DLOG("new windows should start with border style %d\n", $3);
471 config.default_border = $3;
476 TOK_NORMAL { $$ = BS_NORMAL; }
477 | TOK_NONE { $$ = BS_NONE; }
478 | TOK_1PIXEL { $$ = BS_1PIXEL; }
488 DLOG("checking word \"%s\"\n", $1);
489 $$ = (strcasecmp($1, "yes") == 0 ||
490 strcasecmp($1, "true") == 0 ||
491 strcasecmp($1, "on") == 0 ||
492 strcasecmp($1, "enable") == 0 ||
493 strcasecmp($1, "active") == 0);
498 TOKFOCUSFOLLOWSMOUSE WHITESPACE bool
500 DLOG("focus follows mouse = %d\n", $3);
501 config.disable_focus_follows_mouse = !($3);
506 TOKWORKSPACEBAR WHITESPACE bool
508 DLOG("workspace bar = %d\n", $3);
509 config.disable_workspace_bar = !($3);
514 TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKOUTPUT WHITESPACE OUTPUT optional_workspace_name
518 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
520 char *ws_name = NULL;
522 asprintf(&ws_name, "%d", ws_num);
527 DLOG("Should assign workspace %s to output %s\n", ws_name, $7);
528 struct Workspace_Assignment *assignment = scalloc(sizeof(struct Workspace_Assignment));
529 assignment->name = ws_name;
530 assignment->output = $7;
531 TAILQ_INSERT_TAIL(&ws_assignments, assignment, ws_assignments);
534 | TOKWORKSPACE WHITESPACE NUMBER WHITESPACE workspace_name
538 DLOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
540 DLOG("workspace name to: %s\n", $5);
542 if ($<string>5 != NULL) {
543 workspace_set_name(workspace_get(ws_num - 1), $<string>5);
551 optional_workspace_name:
552 /* empty */ { $$ = NULL; }
553 | WHITESPACE workspace_name { $$ = $2; }
557 QUOTEDSTRING { $$ = $1; }
563 TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
565 printf("assignment of %s\n", $3);
567 struct Match *match = $6;
569 char *separator = NULL;
570 if ((separator = strchr($3, '/')) != NULL) {
571 *(separator++) = '\0';
572 match->title = sstrdup(separator);
575 match->class = sstrdup($3);
578 printf(" class = %s\n", match->class);
579 printf(" title = %s\n", match->title);
580 if (match->insert_where == M_ASSIGN_WS)
581 printf(" to ws %s\n", match->target_ws);
582 TAILQ_INSERT_TAIL(&assignments, match, assignments);
589 /* TODO: named workspaces */
590 Match *match = smalloc(sizeof(Match));
592 match->insert_where = M_ASSIGN_WS;
593 asprintf(&(match->target_ws), "%d", $1);
598 /* TODO: compatiblity */
600 struct Assignment *new = scalloc(sizeof(struct Assignment));
601 new->floating = ASSIGN_FLOATING_ONLY;
602 $<assignment>$ = new;
607 /* TODO: compatiblity */
609 struct Assignment *new = scalloc(sizeof(struct Assignment));
610 new->workspace = $<number>2;
611 new->floating = ASSIGN_FLOATING;
612 $<assignment>$ = new;
624 | TOKARROW WHITESPACE
628 TOKIPCSOCKET WHITESPACE STR
630 config.ipc_socket_path = $3;
635 TOKRESTARTSTATE WHITESPACE STR
637 config.restart_state_path = $3;
642 TOKEXEC WHITESPACE STR
644 struct Autostart *new = smalloc(sizeof(struct Autostart));
646 TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
651 TOKTERMINAL WHITESPACE STR
653 ELOG("The terminal option is DEPRECATED and has no effect. "
654 "Please remove it from your configuration file.\n");
659 TOKFONT WHITESPACE STR
661 config.font = load_font($3, true);
662 printf("font %s\n", $3);
667 TOKSINGLECOLOR WHITESPACE colorpixel
675 TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
677 struct Colortriple *dest = $1;
680 dest->background = $5;
689 if (asprintf(&hex, "#%s", $2) == -1)
691 $$ = get_colorpixel(hex);
698 /* NULL */ { $$ = 0; }
700 | binding_modifiers '+' binding_modifier { $$ = $1 | $3; }
701 | binding_modifiers '+' { $$ = $1; }
705 MODIFIER { $$ = $1; }
706 | TOKCONTROL { $$ = BIND_CONTROL; }
707 | TOKSHIFT { $$ = BIND_SHIFT; }
710 popup_during_fullscreen:
711 TOK_POPUP_DURING_FULLSCREEN WHITESPACE popup_setting
713 DLOG("popup_during_fullscreen setting: %d\n", $3);
714 config.popup_during_fullscreen = $3;
719 TOK_IGNORE { $$ = PDF_IGNORE; }
720 | TOK_LEAVE_FULLSCREEN { $$ = PDF_LEAVE_FULLSCREEN; }