From 629722d8859d1e8db47417673cb78963d41ce435 Mon Sep 17 00:00:00 2001
From: Marion Zepf <marion.zepf@gmail.com>
Date: Sun, 27 Oct 2013 02:06:05 +0000
Subject: python export

---
(limited to 'TurtleArt/tautils.py')

diff --git a/TurtleArt/tautils.py b/TurtleArt/tautils.py
index b0aa368..634ee01 100644
--- a/TurtleArt/tautils.py
+++ b/TurtleArt/tautils.py
@@ -107,7 +107,7 @@ def chr_to_ord(x):
     ''' Try to comvert a string to an ord '''
     if strtype(x) and len(x) == 1:
         try:
-            return ord(x[0]), True
+            return ord(x), True
         except ValueError:
             return x, False
     return x, False
@@ -115,9 +115,7 @@ def chr_to_ord(x):
 
 def strtype(x):
     ''' Is x a string type? '''
-    if isinstance(x, (str, unicode)):
-        return True
-    return False
+    return isinstance(x, basestring)
 
 
 def increment_name(name):
@@ -311,7 +309,7 @@ def get_save_name(filefilter, load_save_folder, save_file_name):
         gtk.FILE_CHOOSER_ACTION_SAVE, (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
                                        gtk.STOCK_SAVE, gtk.RESPONSE_OK))
     dialog.set_default_response(gtk.RESPONSE_OK)
-    if filefilter in ['.png', '.svg', '.lg']:
+    if filefilter in ['.png', '.svg', '.lg', '.py']:
         suffix = filefilter
     else:
         suffix = SUFFIX[1]
@@ -808,6 +806,30 @@ def find_blk_below(blk, namelist):
     return None
 
 
+def get_stack_name(blk):
+    ''' Return the name of the action stack that the given block belongs to.
+    If the top block of this stack is not a stack-defining block, return
+    None. '''
+    top_block = find_top_block(blk)
+    if top_block.name == 'start':
+        return 'start'
+    elif top_block.name == 'hat1':
+        return 'stack1'
+    elif top_block.name == 'hat2':
+        return 'stack2'
+    elif top_block.name == 'hat':
+        try:
+            return top_block.connections[1].values[0]
+        except (AttributeError, TypeError, IndexError):
+            # AttributeError: t_b has no attribute 'connections' or t_b.c[1]
+            #   has no attribute 'value'
+            # TypeError: t_b.c or t_b.c[1].v is not a subscriptable sequence
+            # IndexError: t_b.c or t_b.c[1].v is too short
+            return None
+    else:
+        return None
+
+
 def get_hardware():
     ''' Determine whether we are using XO 1.0, 1.5, ... or 'unknown'
     hardware '''
--
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