Merge pull request #181 from taiyu-len/master

multi command keybinds
master
Drew DeVault 9 years ago
commit fe3b85d65f

@ -3,13 +3,15 @@
#include <stdbool.h>
#include "config.h"
struct cmd_handler {
char *command;
enum cmd_status {
CMD_SUCCESS,
CMD_FAILURE,
CMD_INVALID,
CMD_DEFER,
} (*handle)(int argc, char **argv);
// Config Blocks
CMD_BLOCK_END,
CMD_BLOCK_MODE,
};
enum cmd_status handle_command(char *command);

@ -8,10 +8,11 @@ extern int setenv(const char *, const char *, int);
#endif
// array of whitespace characters to use for delims
extern const char *whitespace;
extern const char whitespace[];
char *strip_whitespace(char *str);
char *strip_comments(char *str);
void strip_quotes(char *str);
// Simply split a string with delims, free with `free_flat_list`
list_t *split_string(const char *str, const char *delims);
@ -27,5 +28,10 @@ int unescape_string(char *string);
char *join_args(char **argv, int argc);
char *join_list(list_t *list, char *separator);
// split string into 2 by delim.
char *cmdsep(char **stringp, const char *delim);
// Split string into 2 by delim, handle quotes
char *argsep(char **stringp, const char *delim);
char *strdup(const char *);
#endif

@ -20,6 +20,40 @@
#include "sway.h"
#include "resize.h"
typedef enum cmd_status sway_cmd(int argc, char **argv);
struct cmd_handler {
char *command;
sway_cmd *handle;
};
static sway_cmd cmd_bindsym;
static sway_cmd cmd_orientation;
static sway_cmd cmd_exec;
static sway_cmd cmd_exec_always;
static sway_cmd cmd_exit;
static sway_cmd cmd_floating;
static sway_cmd cmd_floating_mod;
static sway_cmd cmd_focus;
static sway_cmd cmd_focus_follows_mouse;
static sway_cmd cmd_fullscreen;
static sway_cmd cmd_gaps;
static sway_cmd cmd_kill;
static sway_cmd cmd_layout;
static sway_cmd cmd_log_colors;
static sway_cmd cmd_mode;
static sway_cmd cmd_move;
static sway_cmd cmd_output;
static sway_cmd cmd_reload;
static sway_cmd cmd_resize;
static sway_cmd cmd_scratchpad;
static sway_cmd cmd_set;
static sway_cmd cmd_split;
static sway_cmd cmd_splith;
static sway_cmd cmd_splitv;
static sway_cmd cmd_workspace;
static sway_cmd cmd_ws_auto_back_and_forth;
swayc_t *sp_view;
int sp_index = 0;
@ -147,37 +181,33 @@ static enum cmd_status cmd_bindsym(int argc, char **argv) {
}
static enum cmd_status cmd_exec_always(int argc, char **argv) {
if (!config->active) return CMD_DEFER;
if (!checkarg(argc, "exec_always", EXPECTED_MORE_THAN, 0)) {
return CMD_FAILURE;
}
if (!config->active) {
return CMD_DEFER;
}
pid_t pid = fork();
/* Failed to fork */
if (pid < 0) {
sway_log(L_ERROR, "exec command failed, sway did not fork");
// Put argument into cmd array
char *tmp = join_args(argv, argc);
char cmd[4096];
strcpy(cmd, tmp);
free(tmp);
char *args[] = {"sh", "-c", cmd, 0 };
sway_log(L_DEBUG, "Executing %s", cmd);
pid_t pid;
if ((pid = fork()) == 0) {
execv("/bin/sh", args);
_exit(-1);
} else if (pid < 0) {
sway_log(L_ERROR, "exec command failed, sway could not fork");
return CMD_FAILURE;
}
/* Child process */
if (pid == 0) {
char *args = join_args(argv, argc);
sway_log(L_DEBUG, "Executing %s", args);
execl("/bin/sh", "sh", "-c", args, (char *)NULL);
/* Execl doesnt return unless failure */
sway_log(L_ERROR, "could not find /bin/sh");
free(args);
exit(-1);
}
/* Parent */
return CMD_SUCCESS;
}
static enum cmd_status cmd_exec(int argc, char **argv) {
if (!config->active) {
return CMD_DEFER;
}
if (!config->active) return CMD_DEFER;
if (config->reloading) {
char *args = join_args(argv, argc);
sway_log(L_DEBUG, "Ignoring 'exec %s' due to reload", args);
@ -194,8 +224,8 @@ static void kill_views(swayc_t *container, void *data) {
}
static enum cmd_status cmd_exit(int argc, char **argv) {
if (!checkarg(argc, "exit", EXPECTED_EQUAL_TO, 0)
|| config->reading || !config->active) {
if (config->reading) return CMD_INVALID;
if (!checkarg(argc, "exit", EXPECTED_EQUAL_TO, 0)) {
return CMD_FAILURE;
}
// Close all views
@ -205,8 +235,8 @@ static enum cmd_status cmd_exit(int argc, char **argv) {
}
static enum cmd_status cmd_floating(int argc, char **argv) {
if (!checkarg(argc, "floating", EXPECTED_EQUAL_TO, 1)
|| config->reading || !config->active) {
if (config->reading) return CMD_INVALID;
if (!checkarg(argc, "floating", EXPECTED_EQUAL_TO, 1)) {
return CMD_FAILURE;
}
@ -267,8 +297,8 @@ static enum cmd_status cmd_floating(int argc, char **argv) {
}
static enum cmd_status cmd_floating_mod(int argc, char **argv) {
if (!checkarg(argc, "floating_modifier", EXPECTED_EQUAL_TO, 1)
|| !config->reading) {
if (!config->reading) return CMD_INVALID;
if (!checkarg(argc, "floating_modifier", EXPECTED_EQUAL_TO, 1)) {
return CMD_FAILURE;
}
int i, j;
@ -292,10 +322,10 @@ static enum cmd_status cmd_floating_mod(int argc, char **argv) {
}
static enum cmd_status cmd_focus(int argc, char **argv) {
if (config->reading) return CMD_INVALID;
static int floating_toggled_index = 0;
static int tiled_toggled_index = 0;
if (!checkarg(argc, "focus", EXPECTED_EQUAL_TO, 1)
|| config->reading || !config->active) {
if (!checkarg(argc, "focus", EXPECTED_EQUAL_TO, 1)) {
return CMD_FAILURE;
}
if (strcasecmp(argv[0], "left") == 0) {
@ -350,6 +380,7 @@ static enum cmd_status cmd_focus(int argc, char **argv) {
}
static enum cmd_status cmd_focus_follows_mouse(int argc, char **argv) {
if (!config->reading) return CMD_INVALID;
if (!checkarg(argc, "focus_follows_mouse", EXPECTED_EQUAL_TO, 1)) {
return CMD_FAILURE;
}
@ -375,15 +406,19 @@ static void hide_view_in_scratchpad(swayc_t *sp_view) {
}
static enum cmd_status cmd_mode(int argc, char **argv) {
if (!checkarg(argc, "move", EXPECTED_AT_LEAST, 1)) {
if (!checkarg(argc, "mode", EXPECTED_AT_LEAST, 1)) {
return CMD_FAILURE;
}
bool mode_make = !strcmp(argv[argc-1], "{");
if (mode_make && !config->reading) {
return CMD_FAILURE;
char *mode_name = join_args(argv, argc);
int mode_len = strlen(mode_name);
bool mode_make = mode_name[mode_len-1] == '{';
if (mode_make) {
if (!config->reading) return CMD_INVALID;
// Trim trailing spaces
do {
mode_name[--mode_len] = 0;
} while(isspace(mode_name[mode_len-1]));
}
char *mode_name = join_args(argv, argc - mode_make);
struct sway_mode *mode = NULL;
// Find mode
int i, len = config->modes->length;
@ -406,16 +441,18 @@ static enum cmd_status cmd_mode(int argc, char **argv) {
free(mode_name);
return CMD_FAILURE;
}
if ((config->reading && mode_make) || (!config->reading && !mode_make)) {
sway_log(L_DEBUG, "Switching to mode `%s'",mode->name);
}
free(mode_name);
// Set current mode
config->current_mode = mode;
return CMD_SUCCESS;
return mode_make ? CMD_BLOCK_MODE : CMD_SUCCESS;
}
static enum cmd_status cmd_move(int argc, char **argv) {
if (!checkarg(argc, "move", EXPECTED_AT_LEAST, 1)
|| config->reading || !config->active) {
if (config->reading) return CMD_FAILURE;
if (!checkarg(argc, "move", EXPECTED_AT_LEAST, 1)) {
return CMD_FAILURE;
}
@ -485,10 +522,11 @@ static enum cmd_status cmd_move(int argc, char **argv) {
}
static enum cmd_status cmd_orientation(int argc, char **argv) {
if (!checkarg(argc, "orientation", EXPECTED_EQUAL_TO, 1)
|| !config->reading) {
if (!config->reading) return CMD_FAILURE;
if (!checkarg(argc, "orientation", EXPECTED_EQUAL_TO, 1)) {
return CMD_FAILURE;
}
if (strcasecmp(argv[0], "horizontal") == 0) {
config->default_orientation = L_HORIZ;
} else if (strcasecmp(argv[0], "vertical") == 0) {
@ -502,6 +540,7 @@ static enum cmd_status cmd_orientation(int argc, char **argv) {
}
static enum cmd_status cmd_output(int argc, char **argv) {
if (!config->reading) return CMD_FAILURE;
if (!checkarg(argc, "output", EXPECTED_AT_LEAST, 1)) {
return CMD_FAILURE;
}
@ -512,7 +551,6 @@ static enum cmd_status cmd_output(int argc, char **argv) {
output->enabled = true;
// TODO: atoi doesn't handle invalid numbers
if (strcasecmp(argv[1], "disable") == 0) {
output->enabled = false;
}
@ -1089,57 +1127,88 @@ static struct cmd_handler *find_handler(char *line) {
return res;
}
enum cmd_status handle_command(char *exec) {
sway_log(L_INFO, "Handling command '%s'", exec);
enum cmd_status handle_command(char *_exec) {
enum cmd_status status = CMD_SUCCESS;
char *exec = strdup(_exec);
char *head = exec;
char *cmdlist;
char *cmd;
char *criteria __attribute__((unused));
head = exec;
do {
// Handle criteria
if (*head == '[') {
criteria = argsep(&head, "]");
if (head) {
++head;
// TODO handle criteria
} else {
sway_log(L_ERROR, "Unmatched [");
status = CMD_INVALID;
}
// Skip leading whitespace
head += strspn(head, whitespace);
}
// Split command list
cmdlist = argsep(&head, ";");
cmdlist += strspn(cmdlist, whitespace);
do {
// Split commands
cmd = argsep(&cmdlist, ",");
cmd += strspn(cmd, whitespace);
sway_log(L_INFO, "Handling command '%s'", cmd);
//TODO better handling of argv
int argc;
char **argv = split_args(exec, &argc);
enum cmd_status status = CMD_FAILURE;
struct cmd_handler *handler;
if (!argc) {
return status;
}
if ((handler = find_handler(argv[0])) == NULL
|| (status = handler->handle(argc - 1, argv + 1)) != CMD_SUCCESS) {
sway_log(L_ERROR, "Command failed: %s", argv[0]);
char **argv = split_args(cmd, &argc);
if (argc>1 && (*argv[1] == '\"' || *argv[1] == '\'')) {
strip_quotes(argv[1]);
}
struct cmd_handler *handler = find_handler(argv[0]);
enum cmd_status res = CMD_INVALID;
if (!handler
|| (res = handler->handle(argc-1, argv+1)) != CMD_SUCCESS) {
sway_log(L_ERROR, "Command '%s' failed", cmd);
free_argv(argc, argv);
status = res;
goto cleanup;
}
free_argv(argc, argv);
} while(cmdlist);
} while(head);
cleanup:
free(exec);
return status;
}
enum cmd_status config_command(char *exec) {
sway_log(L_INFO, "handling config command '%s'", exec);
enum cmd_status status = CMD_SUCCESS;
int argc;
char **argv = split_args(exec, &argc);
enum cmd_status status = CMD_FAILURE;
struct cmd_handler *handler;
if (!argc) {
status = CMD_SUCCESS;
if (!argc) goto cleanup;
sway_log(L_INFO, "handling config command '%s'", exec);
// Endblock
if (**argv == '}') {
status = CMD_BLOCK_END;
goto cleanup;
}
// TODO better block handling
if (strncmp(argv[0], "}", 1) == 0) {
config->current_mode = config->modes->items[0];
status = CMD_SUCCESS;
struct cmd_handler *handler = find_handler(argv[0]);
if (!handler) {
status = CMD_INVALID;
goto cleanup;
}
if ((handler = find_handler(argv[0]))) {
// Dont replace first argument in cmd_set
int i = handler->handle == cmd_set ? 2 : 1;
int e = argc;
for (; i < e; ++i) {
int i;
// Var replacement, for all but first argument of set
for (i = handler->handle == cmd_set ? 2 : 1; i < argc; ++i) {
argv[i] = do_var_replacement(argv[i]);
}
status = handler->handle(argc - 1, argv + 1);
if (status == CMD_FAILURE) {
sway_log(L_ERROR, "Config load failed for line `%s'", exec);
} else if (status == CMD_DEFER) {
sway_log(L_DEBUG, "Defferring command `%s'", exec);
list_add(config->cmd_queue, strdup(exec));
status = CMD_SUCCESS;
}
} else {
sway_log(L_ERROR, "Unknown command `%s'", exec);
/* Strip quotes for first argument.
* TODO This part needs to be handled much better */
if (argc>1 && (*argv[1] == '\"' || *argv[1] == '\'')) {
strip_quotes(argv[1]);
}
status = handler->handle(argc-1, argv+1);
cleanup:
free_argv(argc, argv);
return status;

@ -116,35 +116,36 @@ static char *get_config_path(void) {
#define home paths[0]
#define conf paths[1]
// Get home and config directories
conf = conf ? strdup(conf) : NULL;
home = home ? strdup(home) : NULL;
if (conf) {
conf = strdup(conf);
} else if (home) {
// If config folder is unset, set it to $HOME/.config
if (!conf && home) {
const char *def = "/.config";
conf = malloc(strlen(home) + strlen(def) + 1);
strcpy(conf, home);
strcat(conf, def);
} else {
home = strdup("");
conf = strdup("");
}
pathlen[0] = strlen(home);
pathlen[1] = strlen(conf);
// Get path lengths
pathlen[0] = home ? strlen(home) : 0;
pathlen[1] = conf ? strlen(conf) : 0;
#undef home
#undef conf
// Search for config file from search paths
static const char *search_paths[] = {
"/.sway/config", // Prepend with $home
"/sway/config", // Prepend with $config
"/etc/sway/config",
"/.i3/config", // $home
"/.i3/config", // $config
"/i3/config", // $config
"/etc/i3/config"
};
for (i = 0; i < (int)(sizeof(search_paths) / sizeof(char *)); ++i) {
// Only try path if it is set by enviroment variables
if (paths[i%3]) {
char *test = malloc(pathlen[i%3] + strlen(search_paths[i]) + 1);
strcpy(test, paths[i%3]);
strcat(test, search_paths[i]);
strcpy(test + pathlen[i%3], search_paths[i]);
sway_log(L_DEBUG, "Checking for config at %s", test);
if (file_exists(test)) {
config_path = test;
@ -152,6 +153,7 @@ static char *get_config_path(void) {
}
free(test);
}
}
sway_log(L_DEBUG, "Trying to find config in XDG_CONFIG_DIRS");
char *xdg_config_dirs = getenv("XDG_CONFIG_DIRS");
@ -225,14 +227,46 @@ bool read_config(FILE *file, bool is_active) {
config->active = true;
}
bool success = true;
enum cmd_status block = CMD_BLOCK_END;
char *line;
while (!feof(file)) {
line = read_line(file);
line = strip_comments(line);
if (config_command(line) == CMD_FAILURE) {
switch(config_command(line)) {
case CMD_FAILURE:
case CMD_INVALID:
sway_log(L_ERROR, "Error on line '%s'", line);
success = false;
break;
case CMD_DEFER:
sway_log(L_DEBUG, "Defferring command `%s'", line);
list_add(config->cmd_queue, strdup(line));
break;
case CMD_BLOCK_MODE:
if (block == CMD_BLOCK_END) {
block = CMD_BLOCK_MODE;
} else {
sway_log(L_ERROR, "Invalid block '%s'", line);
}
break;
case CMD_BLOCK_END:
switch(block) {
case CMD_BLOCK_MODE:
sway_log(L_DEBUG, "End of mode block");
config->current_mode = config->modes->items[0];
break;
case CMD_BLOCK_END:
sway_log(L_ERROR, "Unmatched }");
break;
default:;
}
default:;
}
free(line);
}

@ -405,7 +405,7 @@ swayc_t *swayc_by_test(swayc_t *container, bool (*test)(swayc_t *view, void *dat
}
static bool test_name(swayc_t *view, void *data) {
if (!view && !view->name) {
if (!view || !view->name) {
return false;
}
return strcmp(view->name, data) == 0;

@ -253,8 +253,8 @@ static void handle_view_focus(wlc_handle view, bool focus) {
}
static void handle_view_geometry_request(wlc_handle handle, const struct wlc_geometry *geometry) {
sway_log(L_DEBUG, "geometry request %d x %d : %d x %d",
geometry->origin.x, geometry->origin.y, geometry->size.w, geometry->size.h);
sway_log(L_DEBUG, "geometry request for %ld %dx%d : %dx%d",
handle, geometry->origin.x, geometry->origin.y, geometry->size.w, geometry->size.h);
// If the view is floating, then apply the geometry.
// Otherwise save the desired width/height for the view.
// This will not do anything for the time being as WLC improperly sends geometry requests
@ -331,7 +331,7 @@ static bool handle_key(wlc_handle view, uint32_t time, const struct wlc_modifier
struct sway_binding *binding = mode->bindings->items[i];
if ((modifiers->mods ^ binding->modifiers) == 0) {
bool match;
bool match = false;
int j;
for (j = 0; j < binding->keys->length; ++j) {
xkb_keysym_t *key = binding->keys->items[j];

@ -206,7 +206,8 @@ void swap_geometry(swayc_t *a, swayc_t *b) {
void move_container(swayc_t *container, enum movement_direction dir) {
enum swayc_layouts layout;
if (container->is_floating) {
if (container->is_floating
|| (container->type != C_VIEW && container->type != C_CONTAINER)) {
return;
}
if (dir == MOVE_UP || dir == MOVE_DOWN) {
@ -280,7 +281,6 @@ void move_container(swayc_t *container, enum movement_direction dir) {
// Dirty hack to fix a certain case
arrange_windows(parent, -1, -1);
arrange_windows(parent->parent, -1, -1);
update_visibility(parent->parent);
set_focused_container_for(parent->parent, container);
}
@ -319,31 +319,34 @@ void update_geometry(swayc_t *container) {
if (container->type != C_VIEW) {
return;
}
int gap = swayc_gap(container);
swayc_t *ws = swayc_parent_by_type(container, C_WORKSPACE);
swayc_t *op = ws->parent;
int gap = container->is_floating ? 0 : swayc_gap(container);
struct wlc_geometry geometry = {
.origin = {
.x = container->x + (container->is_floating ? 0 : gap / 2),
.y = container->y + (container->is_floating ? 0 : gap / 2)
.x = container->x + gap/2 < op->width ? container->x + gap/2 : op->width-1,
.y = container->y + gap/2 < op->height ? container->y + gap/2 : op->height-1
},
.size = {
.w = container->width > (container->is_floating ? 0 : gap) ?
container->width - (container->is_floating ? 0 : gap) : 0,
.h = container->height > (container->is_floating ? 0 : gap) ?
container->height - (container->is_floating ? 0 : gap) : 0,
.w = container->width > gap ? container->width - gap : 1,
.h = container->height > gap ? container->height - gap : 1,
}
};
if (swayc_is_fullscreen(container)) {
swayc_t *parent = swayc_parent_by_type(container, C_OUTPUT);
geometry.origin.x = 0;
geometry.origin.y = 0;
geometry.size.w = parent->width;
geometry.size.h = parent->height;
geometry.size.w = op->width;
geometry.size.h = op->height;
if (op->focused == ws) {
wlc_view_bring_to_front(container->handle);
}
}
wlc_view_set_geometry(container->handle, 0, &geometry);
return;
}
void arrange_windows(swayc_t *container, double width, double height) {
static void arrange_windows_r(swayc_t *container, double width, double height) {
int i;
if (width == -1 || height == -1) {
sway_log(L_DEBUG, "Arranging layout for %p", container);
@ -357,7 +360,7 @@ void arrange_windows(swayc_t *container, double width, double height) {
for (i = 0; i < container->children->length; ++i) {
swayc_t *child = container->children->items[i];
sway_log(L_DEBUG, "Arranging output at %d", x);
arrange_windows(child, -1, -1);
arrange_windows_r(child, -1, -1);
x += child->width;
}
return;
@ -373,7 +376,7 @@ void arrange_windows(swayc_t *container, double width, double height) {
child->width = width - gap * 2;
child->height = height - gap * 2;
sway_log(L_DEBUG, "Arranging workspace #%d at %f, %f", i, child->x, child->y);
arrange_windows(child, -1, -1);
arrange_windows_r(child, -1, -1);
}
return;
case C_VIEW:
@ -417,7 +420,7 @@ void arrange_windows(swayc_t *container, double width, double height) {
sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %f by %f)", child, child->type, width, scale);
child->x = x + container->x;
child->y = y + container->y;
arrange_windows(child, child->width * scale, height);
arrange_windows_r(child, child->width * scale, height);
x += child->width;
}
}
@ -444,7 +447,7 @@ void arrange_windows(swayc_t *container, double width, double height) {
sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %f by %f)", child, child->type, height, scale);
child->x = x + container->x;
child->y = y + container->y;
arrange_windows(child, width, child->height * scale);
arrange_windows_r(child, width, child->height * scale);
y += child->height;
}
}
@ -466,6 +469,11 @@ void arrange_windows(swayc_t *container, double width, double height) {
}
}
}
}
void arrange_windows(swayc_t *container, double width, double height) {
update_visibility(container);
arrange_windows_r(container, width, height);
layout_log(&root_container, 0);
}

@ -14,10 +14,10 @@ int colored = 1;
log_importance_t v = L_SILENT;
static const char *verbosity_colors[] = {
"", // L_SILENT
"\x1B[1;31m", // L_ERROR
"\x1B[1;34m", // L_INFO
"\x1B[1;30m", // L_DEBUG
[L_SILENT] = "",
[L_ERROR ] = "\x1B[1;31m",
[L_INFO ] = "\x1B[1;34m",
[L_DEBUG ] = "\x1B[1;30m",
};
void init_log(log_importance_t verbosity) {

@ -1,5 +1,6 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>
#include "stringop.h"
@ -7,7 +8,7 @@
#include "string.h"
#include "list.h"
const char *whitespace = " \f\n\r\t\v";
const char whitespace[] = " \f\n\r\t\v";
/* Note: This returns 8 characters for trimmed_start per tab character. */
char *strip_whitespace(char *_str) {
@ -105,6 +106,7 @@ char **split_args(const char *start, int *argc) {
bool in_char = false;
bool escaped = false;
const char *end = start;
if (start) {
while (*start) {
if (!in_token) {
start = (end += strspn(end, whitespace));
@ -118,20 +120,18 @@ char **split_args(const char *start, int *argc) {
escaped = !escaped;
} else if (*end == '\0' || (!in_string && !in_char && !escaped
&& strchr(whitespace, *end))) {
goto add_part;
goto add_token;
}
if (*end != '\\') {
escaped = false;
}
++end;
continue;
add_part:
add_token:
if (end - start > 0) {
char *token = malloc(end - start + 1);
strncpy(token, start, end - start + 1);
token[end - start] = '\0';
strip_quotes(token);
unescape_string(token);
argv[*argc] = token;
if (++*argc + 1 == alloc) {
argv = realloc(argv, (alloc *= 2) * sizeof(char *));
@ -140,6 +140,7 @@ char **split_args(const char *start, int *argc) {
in_token = false;
escaped = false;
}
}
argv[*argc] = NULL;
return argv;
}
@ -312,6 +313,56 @@ char *join_list(list_t *list, char *separator) {
return res;
}
char *cmdsep(char **stringp, const char *delim) {
// skip over leading delims
char *head = *stringp + strspn(*stringp, delim);
// Find end token
char *tail = *stringp += strcspn(*stringp, delim);
// Set stringp to begining of next token
*stringp += strspn(*stringp, delim);
// Set stringp to null if last token
if (!**stringp) *stringp = NULL;
// Nullify end of first token
*tail = 0;
return head;
}
char *argsep(char **stringp, const char *delim) {
char *start = *stringp;
char *end = start;
bool in_string = false;
bool in_char = false;
bool escaped = false;
while (1) {
if (*end == '"' && !in_char && !escaped) {
in_string = !in_string;
} else if (*end == '\'' && !in_string && !escaped) {
in_char = !in_char;
} else if (*end == '\\') {
escaped = !escaped;
} else if (*end == '\0') {
*stringp = NULL;
goto found;
} else if (!in_string && !in_char && !escaped && strchr(delim, *end)) {
if (end - start) {
*(end++) = 0;
*stringp = end + strspn(end, delim);;
if (!**stringp) *stringp = NULL;
goto found;
} else {
++start;
end = start;
}
}
if (*end != '\\') {
escaped = false;
}
++end;
}
found:
return start;
}
char *strdup(const char *str) {
char *dup = malloc(strlen(str) + 1);
if (dup) {
@ -319,3 +370,4 @@ char *strdup(const char *str) {
}
return dup;
}

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