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