+++ /dev/null
-%{
-/*
- * vim:ts=4:sw=4:expandtab
- *
- */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <X11/Xlib.h>
-#include <X11/XKBlib.h>
-
-#include "libi3.h"
-
-extern Display *dpy;
-
-struct context {
- int line_number;
- char *line_copy;
-
- char *compact_error;
-
- /* These are the same as in YYLTYPE */
- int first_column;
- int last_column;
-
- char *result;
-};
-
-typedef struct yy_buffer_state *YY_BUFFER_STATE;
-extern int yylex(struct context *context);
-extern int yyparse(void);
-extern FILE *yyin;
-YY_BUFFER_STATE yy_scan_string(const char *);
-
-static struct context *context;
-static xcb_connection_t *conn;
-static xcb_key_symbols_t *keysyms;
-
-/* We don’t need yydebug for now, as we got decent error messages using
- * yyerror(). Should you ever want to extend the parser, it might be handy
- * to just comment it in again, so it stays here. */
-//int yydebug = 1;
-
-void yyerror(const char *error_message) {
- fprintf(stderr, "\n");
- fprintf(stderr, "CONFIG: %s\n", error_message);
- fprintf(stderr, "CONFIG: line %d:\n",
- context->line_number);
- fprintf(stderr, "CONFIG: %s\n", context->line_copy);
- fprintf(stderr, "CONFIG: ");
- for (int c = 1; c <= context->last_column; c++)
- if (c >= context->first_column)
- fprintf(stderr, "^");
- else fprintf(stderr, " ");
- fprintf(stderr, "\n");
- fprintf(stderr, "\n");
-}
-
-int yywrap() {
- return 1;
-}
-
-char *rewrite_binding(const char *bindingline) {
- char *result = NULL;
-
- conn = xcb_connect(NULL, NULL);
- if (conn == NULL || xcb_connection_has_error(conn)) {
- fprintf(stderr, "Cannot open display\n");
- exit(1);
- }
- keysyms = xcb_key_symbols_alloc(conn);
-
- context = calloc(sizeof(struct context), 1);
-
- yy_scan_string(bindingline);
-
- if (yyparse() != 0) {
- fprintf(stderr, "Could not parse configfile\n");
- exit(1);
- }
-
- result = context->result;
-
- if (context->line_copy)
- free(context->line_copy);
- free(context);
- xcb_key_symbols_free(keysyms);
- xcb_disconnect(conn);
-
- return result;
-}
-
-/* XXX: does not work for combinations of modifiers yet */
-static char *modifier_to_string(int modifiers) {
- //printf("should convert %d to string\n", modifiers);
- if (modifiers == (1 << 3))
- return strdup("$mod+");
- else if (modifiers == ((1 << 3) | (1 << 0)))
- return strdup("$mod+Shift+");
- else if (modifiers == (1 << 9))
- return strdup("$mod+");
- else if (modifiers == ((1 << 9) | (1 << 0)))
- return strdup("$mod+Shift+");
- else if (modifiers == (1 << 0))
- return strdup("Shift+");
- else return strdup("");
-}
-
-/*
- * Returns true if sym is bound to any key except for 'except_keycode' on the
- * first four layers (normal, shift, mode_switch, mode_switch + shift).
- *
- */
-static bool keysym_used_on_other_key(KeySym sym, xcb_keycode_t except_keycode) {
- xcb_keycode_t i,
- min_keycode = xcb_get_setup(conn)->min_keycode,
- max_keycode = xcb_get_setup(conn)->max_keycode;
-
- for (i = min_keycode; i && i <= max_keycode; i++) {
- if (i == except_keycode)
- continue;
- for (int level = 0; level < 4; level++) {
- if (xcb_key_symbols_get_keysym(keysyms, i, level) != sym)
- continue;
- return true;
- }
- }
- return false;
-}
-
-%}
-
-%error-verbose
-%lex-param { struct context *context }
-
-%union {
- int number;
- char *string;
-}
-
-%token <number>NUMBER "<number>"
-%token <string>STR "<string>"
-%token TOKBINDCODE
-%token TOKMODVAR "$mod"
-%token MODIFIER "<modifier>"
-%token TOKCONTROL "control"
-%token TOKSHIFT "shift"
-%token WHITESPACE "<whitespace>"
-
-%%
-
-lines: /* empty */
- | lines WHITESPACE bindcode
- | lines error
- | lines bindcode
- ;
-
-bindcode:
- TOKBINDCODE WHITESPACE binding_modifiers NUMBER WHITESPACE STR
- {
- //printf("\tFound keycode binding mod%d with key %d and command %s\n", $<number>3, $4, $<string>6);
- int level = 0;
- if (($<number>3 & (1 << 0))) {
- /* When shift is included, we really need to use the second-level
- * symbol (upper-case). The lower-case symbol could be on a
- * different key than the upper-case one (unlikely for letters, but
- * more likely for special characters). */
- level = 1;
-
- /* Try to use the keysym on the first level (lower-case). In case
- * this doesn’t make it ambiguous (think of a keyboard layout
- * having '1' on two different keys, but '!' only on keycode 10),
- * we’ll stick with the keysym of the first level.
- *
- * This reduces a lot of confusion for users who switch keyboard
- * layouts from qwerty to qwertz or other slight variations of
- * qwerty (yes, that happens quite often). */
- KeySym sym = XkbKeycodeToKeysym(dpy, $4, 0, 0);
- if (!keysym_used_on_other_key(sym, $4))
- level = 0;
- }
- KeySym sym = XkbKeycodeToKeysym(dpy, $4, 0, level);
- char *str = XKeysymToString(sym);
- char *modifiers = modifier_to_string($<number>3);
- sasprintf(&(context->result), "bindsym %s%s %s\n", modifiers, str, $<string>6);
- free(modifiers);
- }
- ;
-
-binding_modifiers:
- /* 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; }
- | TOKMODVAR { $<number>$ = $<number>1; }
- | TOKCONTROL { $<number>$ = (1 << 2); }
- | TOKSHIFT { $<number>$ = (1 << 0); }
- ;
#include <sys/stat.h>
#include <fcntl.h>
#include <glob.h>
+#include <assert.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
+#include <X11/XKBlib.h>
/* We need SYSCONFDIR for the path to the keycode config template, so raise an
* error if it’s not defined for whatever reason */
static char *config_path;
static uint32_t xcb_numlock_mask;
xcb_connection_t *conn;
+static xcb_key_symbols_t *keysyms;
xcb_screen_t *root_screen;
static xcb_get_modifier_mapping_reply_t *modmap_reply;
static i3Font font;
xcb_window_t root;
Display *dpy;
-char *rewrite_binding(const char *bindingline);
static void finish();
+#include "GENERATED_config_enums.h"
+
+typedef struct token {
+ char *name;
+ char *identifier;
+ /* This might be __CALL */
+ cmdp_state next_state;
+ union {
+ uint16_t call_identifier;
+ } extra;
+} cmdp_token;
+
+typedef struct tokenptr {
+ cmdp_token *array;
+ int n;
+} cmdp_token_ptr;
+
+
+#include "GENERATED_config_tokens.h"
+
+static cmdp_state state;
+/* A list which contains the states that lead to the current state, e.g.
+ * INITIAL, WORKSPACE_LAYOUT.
+ * When jumping back to INITIAL, statelist_idx will simply be set to 1
+ * (likewise for other states, e.g. MODE or BAR).
+ * This list is used to process the nearest error token. */
+static cmdp_state statelist[10] = { INITIAL };
+/* NB: statelist_idx points to where the next entry will be inserted */
+static int statelist_idx = 1;
+
+struct stack_entry {
+ /* Just a pointer, not dynamically allocated. */
+ const char *identifier;
+ enum {
+ STACK_STR = 0,
+ STACK_LONG = 1,
+ } type;
+ union {
+ char *str;
+ long num;
+ } val;
+};
+
+/* 10 entries should be enough for everybody. */
+static struct stack_entry stack[10];
+
+/*
+ * Pushes a string (identified by 'identifier') on the stack. We simply use a
+ * single array, since the number of entries we have to store is very small.
+ *
+ */
+static void push_string(const char *identifier, const char *str) {
+ for (int c = 0; c < 10; c++) {
+ if (stack[c].identifier != NULL &&
+ strcmp(stack[c].identifier, identifier) != 0)
+ continue;
+ if (stack[c].identifier == NULL) {
+ /* Found a free slot, let’s store it here. */
+ stack[c].identifier = identifier;
+ stack[c].val.str = sstrdup(str);
+ stack[c].type = STACK_STR;
+ } else {
+ /* Append the value. */
+ char *prev = stack[c].val.str;
+ sasprintf(&(stack[c].val.str), "%s,%s", prev, str);
+ free(prev);
+ }
+ return;
+ }
+
+ /* When we arrive here, the stack is full. This should not happen and
+ * means there’s either a bug in this parser or the specification
+ * contains a command with more than 10 identified tokens. */
+ fprintf(stderr, "BUG: commands_parser stack full. This means either a bug "
+ "in the code, or a new command which contains more than "
+ "10 identified tokens.\n");
+ exit(1);
+}
+
+static void push_long(const char *identifier, long num) {
+ for (int c = 0; c < 10; c++) {
+ if (stack[c].identifier != NULL)
+ continue;
+ /* Found a free slot, let’s store it here. */
+ stack[c].identifier = identifier;
+ stack[c].val.num = num;
+ stack[c].type = STACK_LONG;
+ return;
+ }
+
+ /* When we arrive here, the stack is full. This should not happen and
+ * means there’s either a bug in this parser or the specification
+ * contains a command with more than 10 identified tokens. */
+ fprintf(stderr, "BUG: commands_parser stack full. This means either a bug "
+ "in the code, or a new command which contains more than "
+ "10 identified tokens.\n");
+ exit(1);
+
+}
+
+static const char *get_string(const char *identifier) {
+ for (int c = 0; c < 10; c++) {
+ if (stack[c].identifier == NULL)
+ break;
+ if (strcmp(identifier, stack[c].identifier) == 0)
+ return stack[c].val.str;
+ }
+ return NULL;
+}
+
+
+static void clear_stack(void) {
+ for (int c = 0; c < 10; c++) {
+ if (stack[c].type == STACK_STR && stack[c].val.str != NULL)
+ free(stack[c].val.str);
+ stack[c].identifier = NULL;
+ stack[c].val.str = NULL;
+ stack[c].val.num = 0;
+ }
+}
+
+/*
+ * Returns true if sym is bound to any key except for 'except_keycode' on the
+ * first four layers (normal, shift, mode_switch, mode_switch + shift).
+ *
+ */
+static bool keysym_used_on_other_key(KeySym sym, xcb_keycode_t except_keycode) {
+ xcb_keycode_t i,
+ min_keycode = xcb_get_setup(conn)->min_keycode,
+ max_keycode = xcb_get_setup(conn)->max_keycode;
+
+ for (i = min_keycode; i && i <= max_keycode; i++) {
+ if (i == except_keycode)
+ continue;
+ for (int level = 0; level < 4; level++) {
+ if (xcb_key_symbols_get_keysym(keysyms, i, level) != sym)
+ continue;
+ return true;
+ }
+ }
+ return false;
+}
+
+
+static char *next_state(const cmdp_token *token) {
+ cmdp_state _next_state = token->next_state;
+
+ if (token->next_state == __CALL) {
+ const char *modifiers = get_string("modifiers");
+ int keycode = atoi(get_string("key"));
+ int level = 0;
+ if (modifiers != NULL &&
+ strstr(modifiers, "Shift") != NULL) {
+ /* When shift is included, we really need to use the second-level
+ * symbol (upper-case). The lower-case symbol could be on a
+ * different key than the upper-case one (unlikely for letters, but
+ * more likely for special characters). */
+ level = 1;
+
+ /* Try to use the keysym on the first level (lower-case). In case
+ * this doesn’t make it ambiguous (think of a keyboard layout
+ * having '1' on two different keys, but '!' only on keycode 10),
+ * we’ll stick with the keysym of the first level.
+ *
+ * This reduces a lot of confusion for users who switch keyboard
+ * layouts from qwerty to qwertz or other slight variations of
+ * qwerty (yes, that happens quite often). */
+ KeySym sym = XkbKeycodeToKeysym(dpy, keycode, 0, 0);
+ if (!keysym_used_on_other_key(sym, keycode))
+ level = 0;
+ }
+ KeySym sym = XkbKeycodeToKeysym(dpy, keycode, 0, level);
+ char *str = XKeysymToString(sym);
+ const char *release = get_string("release");
+ char *res;
+ char *modrep = (modifiers == NULL ? sstrdup("") : sstrdup(modifiers));
+ char *comma;
+ while ((comma = strchr(modrep, ',')) != NULL) {
+ *comma = '+';
+ }
+ sasprintf(&res, "bindsym %s%s%s %s%s\n", (modifiers == NULL ? "" : modrep), (modifiers == NULL ? "" : "+"), str, (release == NULL ? "" : release), get_string("command"));
+ clear_stack();
+ return res;
+ }
+
+ state = _next_state;
+
+ /* See if we are jumping back to a state in which we were in previously
+ * (statelist contains INITIAL) and just move statelist_idx accordingly. */
+ for (int i = 0; i < statelist_idx; i++) {
+ if (statelist[i] != _next_state)
+ continue;
+ statelist_idx = i+1;
+ return NULL;
+ }
+
+ /* Otherwise, the state is new and we add it to the list */
+ statelist[statelist_idx++] = _next_state;
+ return NULL;
+}
+
+
+static char *rewrite_binding(const char *input) {
+ state = INITIAL;
+ statelist_idx = 1;
+
+ const char *walk = input;
+ const size_t len = strlen(input);
+ int c;
+ const cmdp_token *token;
+ char *result = NULL;
+
+ /* The "<=" operator is intentional: We also handle the terminating 0-byte
+ * explicitly by looking for an 'end' token. */
+ while ((walk - input) <= len) {
+ /* Skip whitespace before every token, newlines are relevant since they
+ * separate configuration directives. */
+ while ((*walk == ' ' || *walk == '\t') && *walk != '\0')
+ walk++;
+
+ //printf("remaining input: %s\n", walk);
+
+ cmdp_token_ptr *ptr = &(tokens[state]);
+ for (c = 0; c < ptr->n; c++) {
+ token = &(ptr->array[c]);
+
+ /* A literal. */
+ if (token->name[0] == '\'') {
+ if (strncasecmp(walk, token->name + 1, strlen(token->name) - 1) == 0) {
+ if (token->identifier != NULL)
+ push_string(token->identifier, token->name + 1);
+ walk += strlen(token->name) - 1;
+ if ((result = next_state(token)) != NULL)
+ return result;
+ break;
+ }
+ continue;
+ }
+
+ if (strcmp(token->name, "number") == 0) {
+ /* Handle numbers. We only accept decimal numbers for now. */
+ char *end = NULL;
+ errno = 0;
+ long int num = strtol(walk, &end, 10);
+ if ((errno == ERANGE && (num == LONG_MIN || num == LONG_MAX)) ||
+ (errno != 0 && num == 0))
+ continue;
+
+ /* No valid numbers found */
+ if (end == walk)
+ continue;
+
+ if (token->identifier != NULL)
+ push_long(token->identifier, num);
+
+ /* Set walk to the first non-number character */
+ walk = end;
+ if ((result = next_state(token)) != NULL)
+ return result;
+ break;
+ }
+
+ if (strcmp(token->name, "string") == 0 ||
+ strcmp(token->name, "word") == 0) {
+ const char *beginning = walk;
+ /* Handle quoted strings (or words). */
+ if (*walk == '"') {
+ beginning++;
+ walk++;
+ while (*walk != '\0' && (*walk != '"' || *(walk-1) == '\\'))
+ walk++;
+ } else {
+ if (token->name[0] == 's') {
+ while (*walk != '\0' && *walk != '\r' && *walk != '\n')
+ walk++;
+ } else {
+ /* For a word, the delimiters are white space (' ' or
+ * '\t'), closing square bracket (]), comma (,) and
+ * semicolon (;). */
+ while (*walk != ' ' && *walk != '\t' &&
+ *walk != ']' && *walk != ',' &&
+ *walk != ';' && *walk != '\r' &&
+ *walk != '\n' && *walk != '\0')
+ walk++;
+ }
+ }
+ if (walk != beginning) {
+ char *str = scalloc(walk-beginning + 1);
+ /* We copy manually to handle escaping of characters. */
+ int inpos, outpos;
+ for (inpos = 0, outpos = 0;
+ inpos < (walk-beginning);
+ inpos++, outpos++) {
+ /* We only handle escaped double quotes to not break
+ * backwards compatibility with people using \w in
+ * regular expressions etc. */
+ if (beginning[inpos] == '\\' && beginning[inpos+1] == '"')
+ inpos++;
+ str[outpos] = beginning[inpos];
+ }
+ if (token->identifier)
+ push_string(token->identifier, str);
+ free(str);
+ /* If we are at the end of a quoted string, skip the ending
+ * double quote. */
+ if (*walk == '"')
+ walk++;
+ if ((result = next_state(token)) != NULL)
+ return result;
+ break;
+ }
+ }
+
+ if (strcmp(token->name, "end") == 0) {
+ //printf("checking for end: *%s*\n", walk);
+ if (*walk == '\0' || *walk == '\n' || *walk == '\r') {
+ if ((result = next_state(token)) != NULL)
+ return result;
+ /* To make sure we start with an appropriate matching
+ * datastructure for commands which do *not* specify any
+ * criteria, we re-initialize the criteria system after
+ * every command. */
+ // TODO: make this testable
+ walk++;
+ break;
+ }
+ }
+ }
+ }
+
+ return NULL;
+}
+
+
/*
* Having verboselog() and errorlog() is necessary when using libi3.
*
xcb_connection_has_error(conn))
errx(1, "Cannot open display\n");
+ keysyms = xcb_key_symbols_alloc(conn);
xcb_get_modifier_mapping_cookie_t modmap_cookie;
modmap_cookie = xcb_get_modifier_mapping(conn);
symbols = xcb_key_symbols_alloc(conn);
projects / i3 / i3 / commitdiff