X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=lib%2Fsup%2Flabel.rb;h=67474c2b79ed3393aa3321e458fdb4675225dfe1;hb=46f8e5116f38c8248fdc8553db18f8d2132a1f46;hp=8902dda5757584c4c9dee553ae4146e415544545;hpb=697763248dd4fdbaaf2d0702358e67cc3d45f37e;p=sup

diff --git a/lib/sup/label.rb b/lib/sup/label.rb
index 8902dda..67474c2 100644
--- a/lib/sup/label.rb
+++ b/lib/sup/label.rb
@@ -19,12 +19,13 @@ class LabelManager
         []
       end
     @labels = {}
+    @new_labels = {}
     @modified = false
     labels.each { |t| @labels[t] = true }
-
-    self.class.i_am_the_instance self
   end
 
+  def new_label? l; @new_labels.include?(l) end
+
   ## all labels user-defined and system, ordered
   ## nicely and converted to pretty strings. use #label_for to recover
   ## the original label.
@@ -58,17 +59,18 @@ class LabelManager
       l
     end
   end
-  
+
   def << t
-    t = t.intern unless t.is_a? Symbol
+    raise ArgumentError, "expecting a symbol" unless t.is_a? Symbol
     unless @labels.member?(t) || RESERVED_LABELS.member?(t)
       @labels[t] = true
+      @new_labels[t] = true
       @modified = true
     end
   end
 
   def delete t
-    if @labels.delete t
+    if @labels.delete(t)
       @modified = true
     end
   end
@@ -76,6 +78,7 @@ class LabelManager
   def save
     return unless @modified
     File.open(@fn, "w") { |f| f.puts @labels.keys.sort_by { |l| l.to_s } }
+    @new_labels = {}
   end
 end