commands: saner workspace number handling

sway/commands/move.c

@@ -1,4 +1,5 @@
 #define _XOPEN_SOURCE 500
+#include <ctype.h>
 #include <stdbool.h>
 #include <string.h>
 #include <strings.h>
@@ -124,7 +125,11 @@ static struct cmd_results *cmd_move_container(struct sway_container *current,
 					return cmd_results_new(CMD_INVALID, "move",
 							expected_syntax);
 				}
-				ws_name = strdup(argv[3]);
+				if (!isdigit(argv[3][0])) {
+					return cmd_results_new(CMD_INVALID, "move",
+							"Invalid workspace number '%s'", argv[3]);
+				}
+				ws_name = join_args(argv + 3, argc - 3);
 				ws = workspace_by_number(ws_name);
 			} else {
 				ws_name = join_args(argv + 2, argc - 2);

sway/commands/rename.c

@@ -1,4 +1,5 @@
 #define _XOPEN_SOURCE 500
+#include <ctype.h>
 #include <string.h>
 #include <strings.h>
 #include "log.h"
@@ -34,6 +35,10 @@ struct cmd_results *cmd_rename(int argc, char **argv) {
 		}
 	} else if (strcasecmp(argv[1], "number") == 0) {
 		// 'rename workspace number x to new_name'
+		if (!isdigit(argv[2][0])) {
+			return cmd_results_new(CMD_INVALID, "rename",
+					"Invalid workspace number '%s'", argv[2]);
+		}
 		workspace = workspace_by_number(argv[2]);
 		while (argn < argc && strcasecmp(argv[argn], "to") != 0) {
 			++argn;
@@ -67,7 +72,8 @@ struct cmd_results *cmd_rename(int argc, char **argv) {
 			strcasecmp(new_name, "next_on_output") == 0 ||
 			strcasecmp(new_name, "prev_on_output") == 0 ||
 			strcasecmp(new_name, "back_and_forth") == 0 ||
-			strcasecmp(new_name, "current") == 0) {
+			strcasecmp(new_name, "current") == 0 ||
+			strcasecmp(new_name, "number") == 0) {
 		free(new_name);
 		return cmd_results_new(CMD_INVALID, "rename",
 				"Cannot use special workspace name '%s'", argv[argn]);

sway/commands/workspace.c

@@ -1,4 +1,5 @@
 #define _XOPEN_SOURCE 500
+#include <ctype.h>
 #include <string.h>
 #include <strings.h>
 #include "sway/commands.h"
@@ -60,9 +61,13 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 		struct sway_container *ws = NULL;
 		if (strcasecmp(argv[0], "number") == 0) {
 			if (argc < 2) {
-				cmd_results_new(CMD_INVALID, "workspace",
+				return cmd_results_new(CMD_INVALID, "workspace",
 						"Expected workspace number");
 			}
+			if (!isdigit(argv[1][0])) {
+				return cmd_results_new(CMD_INVALID, "workspace",
+						"Invalid workspace number '%s'", argv[1]);
+			}
 			if (!(ws = workspace_by_number(argv[1]))) {
 				char *name = join_args(argv + 1, argc - 1);
 				ws = workspace_create(NULL, name);

sway/tree/workspace.c

@@ -82,11 +82,6 @@ struct sway_container *workspace_create(struct sway_container *output,
 }
 
 char *prev_workspace_name = NULL;
-struct workspace_by_number_data {
-	int len;
-	const char *cset;
-	const char *name;
-};
 
 void next_name_map(struct sway_container *ws, void *data) {
 	int *count = data;
@@ -154,7 +149,7 @@ static void workspace_name_from_binding(const struct sway_binding * binding,
 			wlr_log(WLR_DEBUG, "Isolated name from workspace number: '%s'", _target);
 
 			// Make sure the workspace number doesn't already exist
-			if (workspace_by_number(_target)) {
+			if (isdigit(_target[0]) && workspace_by_number(_target)) {
 				free(_target);
 				free(dup);
 				return;
@@ -233,18 +228,18 @@ static bool _workspace_by_number(struct sway_container *view, void *data) {
 	if (view->type != C_WORKSPACE) {
 		return false;
 	}
-	struct workspace_by_number_data *wbnd = data;
-	int a = strspn(view->name, wbnd->cset);
-	return a == wbnd->len && strncmp(view->name, wbnd->name, a) == 0;
+	char *name = data;
+	char *view_name = view->name;
+	while (isdigit(*name)) {
+		if (*name++ != *view_name++) {
+			return false;
+		}
+	}
+	return !isdigit(*view_name);
 }
 
 struct sway_container *workspace_by_number(const char* name) {
-	struct workspace_by_number_data wbnd = {0, "1234567890", name};
-	wbnd.len = strspn(name, wbnd.cset);
-	if (wbnd.len <= 0) {
-		return NULL;
-	}
-	return root_find_workspace(_workspace_by_number, (void *) &wbnd);
+	return root_find_workspace(_workspace_by_number, (void *) name);
 }
 
 static bool _workspace_by_name(struct sway_container *view, void *data) {