Fix #1099: Allow spaces in worspace names

This commit allows unquoted spaces in worspace names in order to keep
compatability with i3. The names _must not_ contain the string "output"
which is documented in 'sway.5' because how sway detects the `move
<workspace> output <output>` command. Also I documented that "number"
may be used before the worspace name without affecting how the name is
evaluated.

2 files changed, 43 insertions, 30 deletions

diff --git a/sway/commands/workspace.c b/sway/commands/workspace.c
index 14fe242f..7db1f332 100644
--- a/sway/commands/workspace.c
+++ b/sway/commands/workspace.c
@@ -12,12 +12,44 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
         if ((error = checkarg(argc, "workspace", EXPECTED_AT_LEAST, 1))) {
                 return error;
         }
-        if (argc == 1 || (argc >= 2 && strcasecmp(argv[0], "number") == 0) ) {
+
+        int output_location = -1;
+
+        for (int i = 0; i < argc; ++i) {
+                if (strcasecmp(argv[i], "output") == 0) {
+                        output_location = i;
+                        break;
+                }
+        }
+        if (output_location >= 0) {
+                if ((error = checkarg(argc, "workspace", EXPECTED_EQUAL_TO, output_location + 2))) {
+                        return error;
+                }
+                struct workspace_output *wso = calloc(1, sizeof(struct workspace_output));
+                if (!wso) {
+                        return cmd_results_new(CMD_FAILURE, "workspace output",
+                                        "Unable to allocate workspace output");
+                }
+                wso->workspace = join_args(argv, argc - 2);
+                wso->output = strdup(argv[output_location]);
+                int i = -1;
+                if ((i = list_seq_find(config->workspace_outputs, workspace_output_cmp_workspace, wso)) != -1) {
+                        struct workspace_output *old = config->workspace_outputs->items[i];
+                        free(old); // workspaces can only be assigned to a single output
+                        list_del(config->workspace_outputs, i);
+                }
+                sway_log(L_DEBUG, "Assigning workspace %s to output %s", wso->workspace, wso->output);
+                list_add(config->workspace_outputs, wso);
+                if (!config->reading) {
+                        // TODO: Move workspace to output. (don't do so when reloading)
+                }
+        }
+        else {
                 if (config->reading || !config->active) {
                         return cmd_results_new(CMD_DEFER, "workspace", NULL);
                 }
                 swayc_t *ws = NULL;
-                if (argc >= 2) {
+                if (strcasecmp(argv[0], "number") == 0) {
                         if (!(ws = workspace_by_number(argv[1]))) {
                                 char *name = join_args(argv + 1, argc - 1);
                                 ws = workspace_create(name);
@@ -41,9 +73,11 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
                                 ws = workspace_create(prev_workspace_name);
                         }
                 } else {
-                        if (!(ws = workspace_by_name(argv[0]))) {
-                                ws = workspace_create(argv[0]);
+                        char *name = join_args(argv, argc);
+                        if (!(ws = workspace_by_name(name))) {
+                                ws = workspace_create(name);
                         }
+                        free(name);
                 }
                 swayc_t *old_output = swayc_active_output();
                 workspace_switch(ws);
@@ -55,30 +89,6 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
                                 center_pointer_on(focused);
                         }
                 }
-        } else {
-                if (strcasecmp(argv[1], "output") == 0) {
-                        if ((error = checkarg(argc, "workspace", EXPECTED_EQUAL_TO, 3))) {
-                                return error;
-                        }
-                        struct workspace_output *wso = calloc(1, sizeof(struct workspace_output));
-                        if (!wso) {
-                                return cmd_results_new(CMD_FAILURE, "workspace output",
-                                                "Unable to allocate workspace output");
-                        }
-                        wso->workspace = strdup(argv[0]);
-                        wso->output = strdup(argv[2]);
-                        int i = -1;
-                        if ((i = list_seq_find(config->workspace_outputs, workspace_output_cmp_workspace, wso)) != -1) {
-                                struct workspace_output *old = config->workspace_outputs->items[i];
-                                free(old); // workspaces can only be assigned to a single output
-                                list_del(config->workspace_outputs, i);
-                        }
-                        sway_log(L_DEBUG, "Assigning workspace %s to output %s", argv[0], argv[2]);
-                        list_add(config->workspace_outputs, wso);
-                        if (!config->reading) {
-                                // TODO: Move workspace to output. (don't do so when reloading)
-                        }
-                }
         }
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
diff --git a/sway/sway.5.txt b/sway/sway.5.txt
index f425cfe7..8e3f64ab 100644
--- a/sway/sway.5.txt
+++ b/sway/sway.5.txt
@@ -364,8 +364,11 @@ The default colors are:
         be configured with perfectly aligned adjacent positions for this option to
         have any effect.
 
-**workspace** <name>::
-        Switches to the specified workspace.
+**workspace** [number] <name>::
+        Switches to the specified workspace. The string "number" is optional. The
+        worspace _name_, if unquoted, may not contain the string "output", as sway
+        will assume that the command is moving a worspace to an output, as described
+        below.
 
 **workspace** <prev|next>::
         Switches to the next workspace on the current output or on the next output