]> git.sur5r.net Git - i3/i3/blobdiff - src/cfgparse.y
Implement options to change the default mode of containers
[i3/i3] / src / cfgparse.y
index 4e09e2b1d42963ca7ec7d1d0f24f43c710041f2d..d706b4001b6157f2822fa3bd62ebabad87709065 100644 (file)
@@ -1,13 +1,32 @@
 %{
+/*
+ * vim:ts=8:expandtab
+ *
+ */
 #include <stdio.h>
 #include <string.h>
 #include <xcb/xcb.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <errno.h>
 
 #include "data.h"
+#include "config.h"
+#include "i3.h"
+#include "util.h"
+#include "queue.h"
+#include "table.h"
+#include "workspace.h"
+#include "xcb.h"
 
 extern int yylex(void);
 extern FILE *yyin;
 
+static struct bindings_head *current_bindings;
+
 int yydebug = 1;
 
 void yyerror(const char *str) {
@@ -19,38 +38,136 @@ int yywrap() {
 }
 
 void parse_file(const char *f) {
-       printf("opening %s\n", f);
-        if ((yyin = fopen(f, "r")) == NULL) {
-               perror("fopen");
-               exit(1);
-       }
-       if (yyparse() != 0) {
-               fprintf(stderr, "Could not parse configfile\n");
-               exit(1);
-       }
-       fclose(yyin);
-}
+        SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
+        int fd, ret, read_bytes = 0;
+        struct stat stbuf;
+        char *buf;
+        FILE *fstr;
+        char buffer[1026], key[512], value[512];
+
+        if ((fd = open(f, O_RDONLY)) == -1)
+                die("Could not open configuration file: %s\n", strerror(errno));
+
+        if (fstat(fd, &stbuf) == -1)
+                die("Could not fstat file: %s\n", strerror(errno));
+
+        buf = smalloc(stbuf.st_size * sizeof(char));
+        while (read_bytes < stbuf.st_size) {
+                if ((ret = read(fd, buf + read_bytes, (stbuf.st_size - read_bytes))) < 0)
+                        die("Could not read(): %s\n", strerror(errno));
+                read_bytes += ret;
+        }
+
+        if (lseek(fd, 0, SEEK_SET) == (off_t)-1)
+                die("Could not lseek: %s\n", strerror(errno));
+
+        if ((fstr = fdopen(fd, "r")) == NULL)
+                die("Could not fdopen: %s\n", strerror(errno));
+
+        while (!feof(fstr)) {
+                if (fgets(buffer, 1024, fstr) == NULL) {
+                        if (feof(fstr))
+                                break;
+                        die("Could not read configuration file\n");
+                }
+
+                /* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
+                if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
+                    key[0] == '#' || strlen(key) < 3)
+                        continue;
+
+                if (strcasecmp(key, "set") == 0) {
+                        if (value[0] != '$')
+                                die("Malformed variable assignment, name has to start with $\n");
+
+                        /* get key/value for this variable */
+                        char *v_key = value, *v_value;
+                        if ((v_value = strstr(value, " ")) == NULL)
+                                die("Malformed variable assignment, need a value\n");
+
+                        *(v_value++) = '\0';
+
+                        struct Variable *new = scalloc(sizeof(struct Variable));
+                        new->key = sstrdup(v_key);
+                        new->value = sstrdup(v_value);
+                        SLIST_INSERT_HEAD(&variables, new, variables);
+                        LOG("Got new variable %s = %s\n", v_key, v_value);
+                        continue;
+                }
+        }
+
+        /* For every custom variable, see how often it occurs in the file and
+         * how much extra bytes it requires when replaced. */
+        struct Variable *current, *nearest;
+        int extra_bytes = 0;
+        SLIST_FOREACH(current, &variables, variables) {
+                int extra = (strlen(current->value) - strlen(current->key));
+                char *next;
+                for (next = buf;
+                     (next = strcasestr(buf + (next - buf), current->key)) != NULL;
+                     next += strlen(current->key))
+                        extra_bytes += extra;
+        }
+
+        /* Then, allocate a new buffer and copy the file over to the new one,
+         * but replace occurences of our variables */
+        char *walk = buf, *destwalk;
+        char *new = smalloc((stbuf.st_size + extra_bytes) * sizeof(char));
+        destwalk = new;
+        while (walk < (buf + stbuf.st_size)) {
+                /* Find the next variable */
+                SLIST_FOREACH(current, &variables, variables)
+                        current->next_match = strcasestr(walk, current->key);
+                nearest = NULL;
+                int distance = stbuf.st_size;
+                SLIST_FOREACH(current, &variables, variables) {
+                        if (current->next_match == NULL)
+                                continue;
+                        if ((current->next_match - walk) < distance) {
+                                distance = (current->next_match - walk);
+                                nearest = current;
+                        }
+                }
+                if (nearest == NULL) {
+                        /* If there are no more variables, we just copy the rest */
+                        strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
+                        destwalk += (buf + stbuf.st_size) - walk;
+                        *destwalk = '\0';
+                        break;
+                } else {
+                        /* Copy until the next variable, then copy its value */
+                        strncpy(destwalk, walk, distance);
+                        strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
+                        walk += distance + strlen(nearest->key);
+                        destwalk += distance + strlen(nearest->value);
+                }
+        }
+
+        yy_scan_string(new);
+
+        if (yyparse() != 0) {
+                fprintf(stderr, "Could not parse configfile\n");
+                exit(1);
+        }
 
-#if 0
-main()
-{
-        yyparse();
-       printf("parsing done\n");
+        free(new);
+        free(buf);
 }
-#endif
 
 %}
 
 %union {
-       int number;
-       char *string;
+        int number;
+        char *string;
+        struct Colortriple *color;
+        struct Assignment *assignment;
+        struct Binding *binding;
 }
 
 %token <number>NUMBER
 %token <string>WORD
 %token <string>STR
 %token <string>STR_NG
-%token <string>VARNAME
 %token <string>HEX
 %token TOKBIND
 %token TOKTERMINAL
@@ -71,151 +188,310 @@ main()
 %token TOKEXEC
 %token TOKCOLOR
 %token TOKARROW
+%token TOKMODE
+%token TOKNEWCONTAINER
+%token TOKCONTAINERMODE
+%token TOKSTACKLIMIT
 
 %%
 
 lines: /* empty */
         | lines WHITESPACE line
-       | lines line
+        | lines line
         ;
 
 line:
-        bind
-       | bindsym
-       | floating_modifier
-       | workspace
-       | assign
-       | set
-       | ipcsocket
-       | exec
-       | color
-       | terminal
-       | font
-       | comment
+        bindline
+        | mode
+        | floating_modifier
+        | new_container
+        | workspace
+        | assign
+        | ipcsocket
+        | exec
+        | color
+        | terminal
+        | font
+        | comment
         ;
 
 comment:
-       TOKCOMMENT
-       ;
+        TOKCOMMENT
+        ;
 
 command:
-       STR
-       ;
+        STR
+        ;
+
+bindline:
+        binding
+        {
+                TAILQ_INSERT_TAIL(bindings, $<binding>1, bindings);
+        }
+        ;
+
+binding:
+        TOKBIND WHITESPACE bind                 { $<binding>$ = $<binding>3; }
+        | TOKBINDSYM WHITESPACE bindsym         { $<binding>$ = $<binding>3; }
+        ;
 
 bind:
-        TOKBIND WHITESPACE binding_modifiers '+' NUMBER WHITESPACE command
+        binding_modifiers NUMBER WHITESPACE command
         {
-                printf("\tFound binding mod%d with key %d and command %s\n", $<number>3, $5, $<string>7);
+                printf("\tFound binding mod%d with key %d and command %s\n", $<number>1, $2, $<string>4);
+                Binding *new = scalloc(sizeof(Binding));
+
+                new->keycode = $<number>2;
+                new->mods = $<number>1;
+                new->command = sstrdup($<string>4);
+
+                $<binding>$ = new;
         }
         ;
 
 bindsym:
-        TOKBINDSYM WHITESPACE binding_modifiers '+' WORD WHITESPACE command
+        binding_modifiers WORD WHITESPACE command
         {
-                printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>3, $5, $<string>7);
+                printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>1, $2, $<string>4);
+                Binding *new = scalloc(sizeof(Binding));
+
+                new->symbol = sstrdup($2);
+                new->mods = $<number>1;
+                new->command = sstrdup($<string>4);
+
+                $<binding>$ = new;
+        }
+        ;
+
+mode:
+        TOKMODE WHITESPACE QUOTEDSTRING WHITESPACE '{' modelines '}'
+        {
+                if (strcasecmp($<string>3, "default") == 0) {
+                        printf("You cannot use the name \"default\" for your mode\n");
+                        exit(1);
+                }
+                printf("\t now in mode %s\n", $<string>3);
+                printf("\t current bindings = %p\n", current_bindings);
+                Binding *binding;
+                TAILQ_FOREACH(binding, current_bindings, bindings) {
+                        printf("got binding on mods %d, keycode %d, symbol %s, command %s\n",
+                                        binding->mods, binding->keycode, binding->symbol, binding->command);
+                }
+
+                struct Mode *mode = scalloc(sizeof(struct Mode));
+                mode->name = strdup($<string>3);
+                mode->bindings = current_bindings;
+                current_bindings = NULL;
+                SLIST_INSERT_HEAD(&modes, mode, modes);
+        }
+        ;
+
+modelines:
+        /* empty */
+        | modelines WHITESPACE modeline
+        | modelines modeline
+        ;
+
+modeline:
+        comment
+        | binding
+        {
+                if (current_bindings == NULL) {
+                        current_bindings = scalloc(sizeof(struct bindings_head));
+                        TAILQ_INIT(current_bindings);
+                }
+
+                TAILQ_INSERT_TAIL(current_bindings, $<binding>1, bindings);
         }
         ;
 
 floating_modifier:
-       TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
-       {
-               printf("\tfloating modifier %d\n", $<number>3);
-       }
-       ;
+        TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
+        {
+                LOG("floating modifier = %d\n", $<number>3);
+                config.floating_modifier = $<number>3;
+        }
+        ;
+
+new_container:
+        TOKNEWCONTAINER WHITESPACE TOKCONTAINERMODE
+        {
+                LOG("new containers will be in mode %d\n", $<number>3);
+                config.container_mode = $<number>3;
+
+                /* We also need to change the layout of the already existing
+                 * workspaces here. Workspaces may exist at this point because
+                 * of the other directives which are modifying workspaces
+                 * (setting the preferred screen or name). While the workspace
+                 * objects are already created, they have never been used.
+                 * Thus, the user very likely awaits the default container mode
+                 * to trigger in this case, regardless of where it is inside
+                 * his configuration file. */
+                for (int c = 0; c < num_workspaces; c++) {
+                        if (workspaces[c].table == NULL)
+                                continue;
+                        switch_layout_mode(global_conn,
+                                           workspaces[c].table[0][0],
+                                           config.container_mode);
+                }
+        }
+        | TOKNEWCONTAINER WHITESPACE TOKSTACKLIMIT WHITESPACE TOKSTACKLIMIT WHITESPACE NUMBER
+        {
+                LOG("stack-limit %d with val %d\n", $<number>5, $<number>7);
+                config.container_stack_limit = $<number>5;
+                config.container_stack_limit_value = $<number>7;
+
+                /* See the comment above */
+                for (int c = 0; c < num_workspaces; c++) {
+                        if (workspaces[c].table == NULL)
+                                continue;
+                        Container *con = workspaces[c].table[0][0];
+                        con->stack_limit = config.container_stack_limit;
+                        con->stack_limit_value = config.container_stack_limit_value;
+                }
+        }
+        ;
 
 workspace:
-       TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKSCREEN WHITESPACE screen
-       {
-               printf("\t workspace %d to screen %d\n", $<number>3, $<number>7);
-       }
-       | TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKSCREEN WHITESPACE screen WHITESPACE QUOTEDSTRING
-       {
-               printf("\t quoted: %s\n", $<string>9);
-       }
-       ;
+        TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKSCREEN WHITESPACE screen workspace_name
+        {
+                int ws_num = $<number>3;
+                if (ws_num < 1) {
+                        LOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
+                } else {
+                        Workspace *ws = workspace_get(ws_num - 1);
+                        ws->preferred_screen = sstrdup($<string>7);
+                        if ($<string>8 != NULL)
+                                workspace_set_name(ws, $<string>8);
+                }
+        }
+        | TOKWORKSPACE WHITESPACE NUMBER workspace_name
+        {
+                int ws_num = $<number>3;
+                if (ws_num < 1) {
+                        LOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
+                } else {
+                        if ($<string>4 != NULL)
+                                workspace_set_name(workspace_get(ws_num - 1), $<string>4);
+                }
+        }
+        ;
 
-screen:
-       NUMBER
-       ;
+workspace_name:
+        /* NULL */                      { $<string>$ = NULL; }
+        | WHITESPACE QUOTEDSTRING       { $<string>$ = $<string>2; }
+        | WHITESPACE STR                { $<string>$ = $<string>2; }
+        ;
 
+screen:
+        NUMBER              { asprintf(&$<string>$, "%d", $<number>1); }
+        | NUMBER 'x'        { asprintf(&$<string>$, "%d", $<number>1); }
+        | NUMBER 'x' NUMBER { asprintf(&$<string>$, "%dx%d", $<number>1, $<number>3); }
+        | 'x' NUMBER        { asprintf(&$<string>$, "x%d", $<number>2); }
+        ;
 
 assign:
-       TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow NUMBER
-       {
-               printf("assignment of %s to %d\n", $<string>3, $<number>6);
-       }
-       ;
+        TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
+        {
+                printf("assignment of %s to %d\n", $<string>3, $<number>6);
+
+                struct Assignment *new = $<assignment>6;
+                new->windowclass_title = strdup($<string>3);
+                TAILQ_INSERT_TAIL(&assignments, new, assignments);
+        }
+        ;
+
+assign_target:
+        NUMBER
+        {
+                struct Assignment *new = scalloc(sizeof(struct Assignment));
+                new->workspace = $<number>1;
+                new->floating = ASSIGN_FLOATING_NO;
+                $<assignment>$ = new;
+        }
+        | '~'
+        {
+                struct Assignment *new = scalloc(sizeof(struct Assignment));
+                new->floating = ASSIGN_FLOATING_ONLY;
+                $<assignment>$ = new;
+        }
+        | '~' NUMBER
+        {
+                struct Assignment *new = scalloc(sizeof(struct Assignment));
+                new->workspace = $<number>2;
+                new->floating = ASSIGN_FLOATING;
+                $<assignment>$ = new;
+        }
+        ;
 
 window_class:
-       QUOTEDSTRING
-       | STR_NG
-       ;
+        QUOTEDSTRING
+        | STR_NG
+        ;
 
 optional_arrow:
-       /* NULL */
-       | TOKARROW WHITESPACE
-       ;
-
-set:
-       TOKSET WHITESPACE variable WHITESPACE STR
-       {
-               printf("set %s to %s\n", $<string>3, $<string>5);
-       }
-       ;
-
-variable:
-       '$' WORD        { asprintf(&$<string>$, "$%s", $<string>2); }
-       | '$' VARNAME   { asprintf(&$<string>$, "$%s", $<string>2); }
-       ;
+        /* NULL */
+        | TOKARROW WHITESPACE
+        ;
 
 ipcsocket:
-       TOKIPCSOCKET WHITESPACE STR
-       {
-               printf("ipc %s\n", $<string>3);
-       }
-       ;
+        TOKIPCSOCKET WHITESPACE STR
+        {
+                config.ipc_socket_path = sstrdup($<string>3);
+        }
+        ;
 
 exec:
-       TOKEXEC WHITESPACE STR
-       {
-               printf("exec %s\n", $<string>3);
-       }
-       ;
+        TOKEXEC WHITESPACE STR
+        {
+                struct Autostart *new = smalloc(sizeof(struct Autostart));
+                new->command = sstrdup($<string>3);
+                TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
+        }
+        ;
 
 terminal:
-       TOKTERMINAL WHITESPACE STR
-       {
-               printf("terminal %s\n", $<string>3);
-       }
-       ;
+        TOKTERMINAL WHITESPACE STR
+        {
+                config.terminal = sstrdup($<string>3);
+                printf("terminal %s\n", config.terminal);
+        }
+        ;
 
 font:
-       TOKFONT WHITESPACE STR
-       {
-               printf("font %s\n", $<string>3);
-       }
-       ;
+        TOKFONT WHITESPACE STR
+        {
+                config.font = sstrdup($<string>3);
+                printf("font %s\n", config.font);
+        }
+        ;
 
 
 color:
-       TOKCOLOR WHITESPACE '#' HEX
-       {
-               printf("color %s\n", $<string>4);
-       }
-       ;
+        TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
+        {
+                struct Colortriple *dest = $<color>1;
+
+                dest->border = $<number>3;
+                dest->background = $<number>5;
+                dest->text = $<number>7;
+        }
+        ;
+
+colorpixel:
+        '#' HEX         { $<number>$ = get_colorpixel(global_conn, $<string>2); }
+        ;
 
 
 binding_modifiers:
-       binding_modifier
-       |
-       binding_modifiers '+' binding_modifier
-       {
-               $<number>$ = $<number>1 | $<number>3;
-       }
-       ;
+        /* NULL */                               { $<number>$ = 0; }
+        | binding_modifier
+        | binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
+        | binding_modifiers '+'                  { $<number>$ = $<number>1; }
+        ;
 
 binding_modifier:
-       MODIFIER        { $<number>$ = $<number>1; }
-       | TOKCONTROL    { $<number>$ = BIND_CONTROL; }
-       | TOKSHIFT      { $<number>$ = BIND_SHIFT; }
-       ;
+        MODIFIER        { $<number>$ = $<number>1; }
+        | TOKCONTROL    { $<number>$ = BIND_CONTROL; }
+        | TOKSHIFT      { $<number>$ = BIND_SHIFT; }
+        ;