sway: enable workspace selection by number

include/workspace.h

@@ -10,6 +10,7 @@ extern char *prev_workspace_name;
 char *workspace_next_name(void);
 swayc_t *workspace_create(const char*);
 swayc_t *workspace_by_name(const char*);
+swayc_t *workspace_by_number(const char*);
 bool workspace_switch(swayc_t*);
 swayc_t *workspace_output_next();
 swayc_t *workspace_next();

sway/commands.c

@@ -649,12 +649,15 @@ static struct cmd_results *cmd_move(int argc, char **argv) {
 			}
 
 			const char *ws_name = argv[3];
-			if (argc == 5) {
+			swayc_t *ws;
+			if (argc == 5 && strcasecmp(ws_name, "number") == 0) {
 				// move "container to workspace number x"
 				ws_name = argv[4];
+				ws = workspace_by_number(ws_name);
+			} else {
+				ws = workspace_by_name(ws_name);
 			}
 
-			swayc_t *ws = workspace_by_name(ws_name);
 			if (ws == NULL) {
 				ws = workspace_create(ws_name);
 			}
@@ -1435,13 +1438,17 @@ static struct cmd_results *cmd_workspace(int argc, char **argv) {
 	if ((error = checkarg(argc, "workspace", EXPECTED_AT_LEAST, 1))) {
 		return error;
 	}
-	if (argc == 1) {
+	if (argc == 1 || (argc == 2 && strcasecmp(argv[0], "number") == 0) ) {
 		if (config->reading || !config->active) {
 			return cmd_results_new(CMD_DEFER, "workspace", NULL);
 		}
 		// Handle workspace next/prev
 		swayc_t *ws = NULL;
-		if (strcasecmp(argv[0], "next") == 0) {
+		if (argc == 2) {
+			if (!(ws=workspace_by_number(argv[1]))) {
+				ws = workspace_create(argv[1]);
+			}
+		}else if (strcasecmp(argv[0], "next") == 0) {
 			ws = workspace_next();
 		} else if (strcasecmp(argv[0], "prev") == 0) {
 			ws = workspace_prev();

sway/workspace.c

@@ -17,6 +17,11 @@
 #include "ipc.h"
 
 char *prev_workspace_name = NULL;
+struct workspace_by_number_data {
+	int len;
+	const char *cset;
+	const char *name;
+};
 
 char *workspace_next_name(void) {
 	sway_log(L_DEBUG, "Workspace: Generating new name");
@@ -133,6 +138,23 @@ swayc_t *workspace_by_name(const char* name) {
 	}
 }
 
+static bool _workspace_by_number(swayc_t *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;
+}
+swayc_t *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 swayc_by_test(&root_container, _workspace_by_number, (void *) &wbnd);
+}
+
 /**
  * Get the previous or next workspace on the specified output.
  * Wraps around at the end and beginning.