* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
*
* config_parser.c: hand-written parser to parse configuration directives.
*
#include "all.h"
// Macros to make the YAJL API a bit easier to use.
-#define y(x, ...) yajl_gen_ ## x (command_output.json_gen, ##__VA_ARGS__)
-#define ystr(str) yajl_gen_string(command_output.json_gen, (unsigned char*)str, strlen(str))
+#define y(x, ...) yajl_gen_##x(command_output.json_gen, ##__VA_ARGS__)
+#define ystr(str) yajl_gen_string(command_output.json_gen, (unsigned char *)str, strlen(str))
#ifndef TEST_PARSER
-static pid_t configerror_pid = -1;
-/* The path to the temporary script files used by i3-nagbar. We need to keep
- * them around to delete the files in the i3-nagbar SIGCHLD handler. */
-static char *edit_script_path, *pager_script_path;
+pid_t config_error_nagbar_pid = -1;
static struct context *context;
#endif
"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) {
return NULL;
}
-static const long get_long(const char *identifier) {
+static long get_long(const char *identifier) {
for (int c = 0; c < 10; c++) {
if (stack[c].identifier == NULL)
break;
static cmdp_state state;
static Match current_match;
-static struct ConfigResult subcommand_output;
-static struct ConfigResult command_output;
+static struct ConfigResultIR subcommand_output;
+static struct ConfigResultIR command_output;
/* 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 };
+static cmdp_state statelist[10] = {INITIAL};
/* NB: statelist_idx points to where the next entry will be inserted */
static int statelist_idx = 1;
#include "GENERATED_config_call.h"
-
static void next_state(const cmdp_token *token) {
cmdp_state _next_state = token->next_state;
- //printf("token = name %s identifier %s\n", token->name, token->identifier);
- //printf("next_state = %d\n", token->next_state);
+ //printf("token = name %s identifier %s\n", token->name, token->identifier);
+ //printf("next_state = %d\n", token->next_state);
if (token->next_state == __CALL) {
subcommand_output.json_gen = command_output.json_gen;
GENERATED_call(token->extra.call_identifier, &subcommand_output);
for (int i = 0; i < statelist_idx; i++) {
if (statelist[i] != _next_state)
continue;
- statelist_idx = i+1;
+ statelist_idx = i + 1;
return;
}
return result;
}
-struct ConfigResult *parse_config(const char *input, struct context *context) {
+struct ConfigResultIR *parse_config(const char *input, struct context *context) {
/* Dump the entire config file into the debug log. We cannot just use
* DLOG("%s", input); because one log message must not exceed 4 KiB. */
const char *dumpwalk = input;
state = INITIAL;
statelist_idx = 1;
-/* A YAJL JSON generator used for formatting replies. */
-#if YAJL_MAJOR >= 2
+ /* A YAJL JSON generator used for formatting replies. */
command_output.json_gen = yajl_gen_alloc(NULL);
-#else
- command_output.json_gen = yajl_gen_alloc(NULL, NULL);
-#endif
y(array_open);
bool token_handled;
linecnt = 1;
- // TODO: make this testable
+// TODO: make this testable
#ifndef TEST_PARSER
cfg_criteria_init(¤t_match, &subcommand_output, INITIAL);
#endif
/* The "<=" operator is intentional: We also handle the terminating 0-byte
* explicitly by looking for an 'end' token. */
- while ((walk - input) <= len) {
+ while ((size_t)(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);
+ //printf("remaining input: %s\n", walk);
cmdp_token_ptr *ptr = &(tokens[state]);
token_handled = false;
if (*walk == '"') {
beginning++;
walk++;
- while (*walk != '\0' && (*walk != '"' || *(walk-1) == '\\'))
+ while (*walk != '\0' && (*walk != '"' || *(walk - 1) == '\\'))
walk++;
} else {
if (token->name[0] == 's') {
* semicolon (;). */
while (*walk != ' ' && *walk != '\t' &&
*walk != ']' && *walk != ',' &&
- *walk != ';' && *walk != '\r' &&
+ *walk != ';' && *walk != '\r' &&
*walk != '\n' && *walk != '\0')
walk++;
}
}
if (walk != beginning) {
- char *str = scalloc(walk-beginning + 1);
+ 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 < (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] == '"')
+ if (beginning[inpos] == '\\' && beginning[inpos + 1] == '"')
inpos++;
str[outpos] = beginning[inpos];
}
}
}
+ if (strcmp(token->name, "line") == 0) {
+ while (*walk != '\0' && *walk != '\n' && *walk != '\r')
+ walk++;
+ next_state(token);
+ token_handled = true;
+ linecnt++;
+ walk++;
+ break;
+ }
+
if (strcmp(token->name, "end") == 0) {
//printf("checking for end: *%s*\n", walk);
if (*walk == '\0' || *walk == '\n' || *walk == '\r') {
next_state(token);
token_handled = true;
- /* To make sure we start with an appropriate matching
+/* 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
+// TODO: make this testable
#ifndef TEST_PARSER
cfg_criteria_init(¤t_match, &subcommand_output, INITIAL);
#endif
linecnt++;
walk++;
break;
- }
- }
+ }
+ }
}
if (!token_handled) {
possible_tokens);
free(possible_tokens);
-
/* Go back to the beginning of the line */
const char *error_line = start_of_line(walk, input);
/* Print context lines *before* the error, if any. */
if (linecnt > 1) {
- const char *context_p1_start = start_of_line(error_line-2, input);
+ const char *context_p1_start = start_of_line(error_line - 2, input);
char *context_p1_line = single_line(context_p1_start);
if (linecnt > 2) {
- const char *context_p2_start = start_of_line(context_p1_start-2, input);
+ const char *context_p2_start = start_of_line(context_p1_start - 2, input);
char *context_p2_line = single_line(context_p2_start);
ELOG("CONFIG: Line %3d: %s\n", linecnt - 2, context_p2_line);
free(context_p2_line);
y(map_close);
/* Skip the rest of this line, but continue parsing. */
- while ((walk - input) <= len && *walk != '\n')
+ while ((size_t)(walk - input) <= len && *walk != '\n')
walk++;
free(position);
* we find the nearest state which contains an <error> token
* and follow that one. */
bool error_token_found = false;
- for (int i = statelist_idx-1; (i >= 0) && !error_token_found; i--) {
+ for (int i = statelist_idx - 1; (i >= 0) && !error_token_found; i--) {
cmdp_token_ptr *errptr = &(tokens[statelist[i]]);
for (int j = 0; j < errptr->n; j++) {
if (strcmp(errptr->array[j].name, "error") != 0)
#else
-/*
- * Writes the given command as a shell script to path.
- * Returns true unless something went wrong.
- *
- */
-static bool write_nagbar_script(const char *path, const char *command) {
- int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IXUSR);
- if (fd == -1) {
- warn("Could not create temporary script to store the nagbar command");
- return false;
- }
- write(fd, "#!/bin/sh\n", strlen("#!/bin/sh\n"));
- write(fd, command, strlen(command));
- close(fd);
- return true;
-}
-
-/*
- * Handler which will be called when we get a SIGCHLD for the nagbar, meaning
- * it exited (or could not be started, depending on the exit code).
- *
- */
-static void nagbar_exited(EV_P_ ev_child *watcher, int revents) {
- ev_child_stop(EV_A_ watcher);
-
- if (unlink(edit_script_path) != 0)
- warn("Could not delete temporary i3-nagbar script %s", edit_script_path);
- if (unlink(pager_script_path) != 0)
- warn("Could not delete temporary i3-nagbar script %s", pager_script_path);
-
- if (!WIFEXITED(watcher->rstatus)) {
- fprintf(stderr, "ERROR: i3-nagbar did not exit normally.\n");
- return;
- }
-
- int exitcode = WEXITSTATUS(watcher->rstatus);
- printf("i3-nagbar process exited with status %d\n", exitcode);
- if (exitcode == 2) {
- fprintf(stderr, "ERROR: i3-nagbar could not be found. Is it correctly installed on your system?\n");
- }
-
- configerror_pid = -1;
-}
-
-/* We need ev >= 4 for the following code. Since it is not *that* important (it
- * only makes sure that there are no i3-nagbar instances left behind) we still
- * support old systems with libev 3. */
-#if EV_VERSION_MAJOR >= 4
-/*
- * Cleanup handler. Will be called when i3 exits. Kills i3-nagbar with signal
- * SIGKILL (9) to make sure there are no left-over i3-nagbar processes.
- *
- */
-static void nagbar_cleanup(EV_P_ ev_cleanup *watcher, int revent) {
- if (configerror_pid != -1) {
- LOG("Sending SIGKILL (9) to i3-nagbar with PID %d\n", configerror_pid);
- kill(configerror_pid, SIGKILL);
- }
-}
-#endif
-
-/*
- * Kills the configerror i3-nagbar process, if any.
- *
- * Called when reloading/restarting.
- *
- * If wait_for_it is set (restarting), this function will waitpid(), otherwise,
- * ev is assumed to handle it (reloading).
- *
- */
-void kill_configerror_nagbar(bool wait_for_it) {
- if (configerror_pid == -1)
- return;
-
- if (kill(configerror_pid, SIGTERM) == -1)
- warn("kill(configerror_nagbar) failed");
-
- if (!wait_for_it)
- return;
-
- /* When restarting, we don’t enter the ev main loop anymore and after the
- * exec(), our old pid is no longer watched. So, ev won’t handle SIGCHLD
- * for us and we would end up with a <defunct> process. Therefore we
- * waitpid() here. */
- waitpid(configerror_pid, NULL, 0);
-}
-
/*
* Goes through each line of buf (separated by \n) and checks for statements /
* commands which only occur in i3 v4 configuration files. If it finds any, it
strncasecmp(line, "force_focus_wrapping", strlen("force_focus_wrapping")) == 0 ||
strncasecmp(line, "# i3 config file (v4)", strlen("# i3 config file (v4)")) == 0 ||
strncasecmp(line, "workspace_layout", strlen("workspace_layout")) == 0) {
- printf("deciding for version 4 due to this line: %.*s\n", (int)(walk-line), line);
+ LOG("deciding for version 4 due to this line: %.*s\n", (int)(walk - line), line);
return 4;
}
strncasecmp(bind, "border borderless", strlen("border borderless")) == 0 ||
strncasecmp(bind, "--no-startup-id", strlen("--no-startup-id")) == 0 ||
strncasecmp(bind, "bar", strlen("bar")) == 0) {
- printf("deciding for version 4 due to this line: %.*s\n", (int)(walk-line), line);
+ LOG("deciding for version 4 due to this line: %.*s\n", (int)(walk - line), line);
return 4;
}
}
-next:
+ next:
/* advance to the next line */
walk++;
line = walk;
static char *argv[] = {
NULL, /* will be replaced by the executable path */
- NULL
- };
+ NULL};
exec_i3_utility("i3-migrate-config-to-v4", argv);
}
}
/*
- * Checks for duplicate key bindings (the same keycode or keysym is configured
- * more than once). If a duplicate binding is found, a message is printed to
- * stderr and the has_errors variable is set to true, which will start
- * i3-nagbar.
+ * Parses the given file by first replacing the variables, then calling
+ * parse_config and possibly launching i3-nagbar.
*
*/
-static void check_for_duplicate_bindings(struct context *context) {
- Binding *bind, *current;
- TAILQ_FOREACH(current, bindings, bindings) {
- TAILQ_FOREACH(bind, bindings, bindings) {
- /* Abort when we reach the current keybinding, only check the
- * bindings before */
- if (bind == current)
- break;
-
- /* Check if one is using keysym while the other is using bindsym.
- * If so, skip. */
- /* XXX: It should be checked at a later place (when translating the
- * keysym to keycodes) if there are any duplicates */
- if ((bind->symbol == NULL && current->symbol != NULL) ||
- (bind->symbol != NULL && current->symbol == NULL))
- continue;
-
- /* If bind is NULL, current has to be NULL, too (see above).
- * If the keycodes differ, it can't be a duplicate. */
- if (bind->symbol != NULL &&
- strcasecmp(bind->symbol, current->symbol) != 0)
- continue;
-
- /* Check if the keycodes or modifiers are different. If so, they
- * can't be duplicate */
- if (bind->keycode != current->keycode ||
- bind->mods != current->mods ||
- bind->release != current->release)
- continue;
-
- context->has_errors = true;
- if (current->keycode != 0) {
- ELOG("Duplicate keybinding in config file:\n modmask %d with keycode %d, command \"%s\"\n",
- current->mods, current->keycode, current->command);
- } else {
- ELOG("Duplicate keybinding in config file:\n modmask %d with keysym %s, command \"%s\"\n",
- current->mods, current->symbol, current->command);
- }
- }
- }
-}
-
-/*
- * Starts an i3-nagbar process which alerts the user that his configuration
- * file contains one or more errors. Also offers two buttons: One to launch an
- * $EDITOR on the config file and another one to launch a $PAGER on the error
- * logfile.
- *
- */
-static void start_configerror_nagbar(const char *config_path) {
- if (only_check_config)
- return;
-
- fprintf(stderr, "Starting i3-nagbar due to configuration errors\n");
-
- /* We need to create a custom script containing our actual command
- * since not every terminal emulator which is contained in
- * i3-sensible-terminal supports -e with multiple arguments (and not
- * all of them support -e with one quoted argument either).
- *
- * NB: The paths need to be unique, that is, don’t assume users close
- * their nagbars at any point in time (and they still need to work).
- * */
- edit_script_path = get_process_filename("nagbar-cfgerror-edit");
- pager_script_path = get_process_filename("nagbar-cfgerror-pager");
-
- configerror_pid = fork();
- if (configerror_pid == -1) {
- warn("Could not fork()");
- return;
- }
-
- /* child */
- if (configerror_pid == 0) {
- char *edit_command, *pager_command;
- sasprintf(&edit_command, "i3-sensible-editor \"%s\" && i3-msg reload\n", config_path);
- sasprintf(&pager_command, "i3-sensible-pager \"%s\"\n", errorfilename);
- if (!write_nagbar_script(edit_script_path, edit_command) ||
- !write_nagbar_script(pager_script_path, pager_command))
- return;
-
- char *editaction,
- *pageraction;
- sasprintf(&editaction, "i3-sensible-terminal -e \"%s\"", edit_script_path);
- sasprintf(&pageraction, "i3-sensible-terminal -e \"%s\"", pager_script_path);
- char *argv[] = {
- NULL, /* will be replaced by the executable path */
- "-t",
- (context->has_errors ? "error" : "warning"),
- "-m",
- (context->has_errors ?
- "You have an error in your i3 config file!" :
- "Your config is outdated. Please fix the warnings to make sure everything works."),
- "-b",
- "edit config",
- editaction,
- (errorfilename ? "-b" : NULL),
- (context->has_errors ? "show errors" : "show warnings"),
- pageraction,
- NULL
- };
- exec_i3_utility("i3-nagbar", argv);
- }
-
- /* parent */
- /* install a child watcher */
- ev_child *child = smalloc(sizeof(ev_child));
- ev_child_init(child, &nagbar_exited, configerror_pid, 0);
- ev_child_start(main_loop, child);
-
-/* We need ev >= 4 for the following code. Since it is not *that* important (it
- * only makes sure that there are no i3-nagbar instances left behind) we still
- * support old systems with libev 3. */
-#if EV_VERSION_MAJOR >= 4
- /* install a cleanup watcher (will be called when i3 exits and i3-nagbar is
- * still running) */
- ev_cleanup *cleanup = smalloc(sizeof(ev_cleanup));
- ev_cleanup_init(cleanup, nagbar_cleanup);
- ev_cleanup_start(main_loop, cleanup);
-#endif
-}
-
-
-
void parse_file(const char *f) {
SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
int fd, ret, read_bytes = 0;
* variables (otherwise we will count them twice, which is bad when
* 'extra' is negative) */
char *bufcopy = sstrdup(buf);
- SLIST_FOREACH(current, &variables, variables) {
+ SLIST_FOREACH (current, &variables, variables) {
int extra = (strlen(current->value) - strlen(current->key));
char *next;
for (next = bufcopy;
next < (bufcopy + stbuf.st_size) &&
- (next = strcasestr(next, current->key)) != NULL;
+ (next = strcasestr(next, current->key)) != NULL;
next += strlen(current->key)) {
*next = '_';
extra_bytes += extra;
destwalk = new;
while (walk < (buf + stbuf.st_size)) {
/* Find the next variable */
- SLIST_FOREACH(current, &variables, variables)
+ SLIST_FOREACH (current, &variables, variables)
current->next_match = strcasestr(walk, current->key);
nearest = NULL;
int distance = stbuf.st_size;
- SLIST_FOREACH(current, &variables, variables) {
+ SLIST_FOREACH (current, &variables, variables) {
if (current->next_match == NULL)
continue;
if ((current->next_match - walk) < distance) {
free(new);
new = converted;
} else {
- printf("\n");
- printf("**********************************************************************\n");
- printf("ERROR: Could not convert config file. Maybe i3-migrate-config-to-v4\n");
- printf("was not correctly installed on your system?\n");
- printf("**********************************************************************\n");
- printf("\n");
+ LOG("\n");
+ LOG("**********************************************************************\n");
+ LOG("ERROR: Could not convert config file. Maybe i3-migrate-config-to-v4\n");
+ LOG("was not correctly installed on your system?\n");
+ LOG("**********************************************************************\n");
+ LOG("\n");
}
}
-
context = scalloc(sizeof(struct context));
context->filename = f;
- struct ConfigResult *config_output = parse_config(new, context);
+ struct ConfigResultIR *config_output = parse_config(new, context);
yajl_gen_free(config_output->json_gen);
check_for_duplicate_bindings(context);
ELOG("FYI: You are using i3 version " I3_VERSION "\n");
if (version == 3)
ELOG("Please convert your configfile first, then fix any remaining errors (see above).\n");
- start_configerror_nagbar(f);
+
+ char *editaction,
+ *pageraction;
+ sasprintf(&editaction, "i3-sensible-editor \"%s\" && i3-msg reload\n", f);
+ sasprintf(&pageraction, "i3-sensible-pager \"%s\"\n", errorfilename);
+ char *argv[] = {
+ NULL, /* will be replaced by the executable path */
+ "-f",
+ (config.font.pattern ? config.font.pattern : "fixed"),
+ "-t",
+ (context->has_errors ? "error" : "warning"),
+ "-m",
+ (context->has_errors ? "You have an error in your i3 config file!" : "Your config is outdated. Please fix the warnings to make sure everything works."),
+ "-b",
+ "edit config",
+ editaction,
+ (errorfilename ? "-b" : NULL),
+ (context->has_errors ? "show errors" : "show warnings"),
+ pageraction,
+ NULL};
+
+ start_nagbar(&config_error_nagbar_pid, argv);
+ free(editaction);
+ free(pageraction);
}
FREE(context->line_copy);
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