Adding quotes around $1

plugins/bbedit/bbedit.plugin.zsh

@@ -8,14 +8,14 @@ alias bbd=bbdiff
 # If bb is passed a file, open it in BBEdit
 #
 function bb() {
-    if [[ -z $1 ]]
+    if [[ -z "$1" ]]
     then
         bbedit --launch
     else
-        bbedit $1
-        if [[ -d $1 ]]
+        bbedit "$1"
+        if [[ -d "$1" ]]
         then
-            cd $1
+            cd "$1"
         fi
     fi
 }