a bunch of fixes to c-tabber and stacktabber2

--HG--
branch : pmacs2

mode/c.py

@@ -100,29 +100,34 @@ class CTabber2(tab.StackTabber2):
     end_free_tokens    = {'c.string.end': 'c.string.start'}
     start_macro_tokens = {'c.macro.start': 'c.macro.end'}
     end_macro_tokens   = {'c.macro.end': 'c.macro.start'}
-    def is_base(self, y):
+    def _is_base(self, y):
         if y == 0:
             return True
+
+        # if there are no tokens we don't really have any info
         tokens = self._get_tokens(y)
+        if not tokens:
+            return False
 
         # this assumes that people aren't gonna use these macros inside of
         # blocks, which is probably ok.
         t = tokens[0]
-        if t.fqmatchs('c.macro.start', '#define', '#include'):
+        if t.fqmatchs('c.macro.start', ('#define', '#include')):
             return True
-        
+
         # detecting function declarations is annoying; this assumes that people
         # won't put a variable type and name on different lines, but that they
         # might do that for function return type and name.
         #
         # unfortunately, valid function return types might include any of the
-        # four types of tokens below
+        # types of tokens below
         decl = False
         for t in tokens:
-            if t.isa('c.keyword', 'c.identifier', 'c.type'):
+            if decl and self._is_ignored(t):
+                pass
+            elif t.isa('c.keyword', 'c.identifier', 'c.type'):
                 decl = True
-                continue
-            if decl and t.name == 'c.function':
+            elif decl and t.name == 'c.function':
                 break
             else:
                 decl = False

tab.py

@@ -386,6 +386,11 @@ class StackTabber2(Tabber):
         if self.end_at_eof:
             return
 
+        # ok, if we are closing a block then this will end a "single-statement"
+        # block. e.g. else switch() { ... }
+        if t.string in self.close_scope_tokens.get(t.fqname(), set()):
+            self._pop('control')
+
         # if we do want implicit continuation, see if we need it.
         name, s = t.fqname(), t.string
         top     = self._peek()
@@ -406,7 +411,8 @@ class StackTabber2(Tabber):
         if i == 0 and self.stack and self.stack[-1].name == 'continue':
             self.stack.pop()
         if t.string in self.open_scope_tokens.get(t.name, set()):
-            self._pop_while('continue', 'control')
+            #self._pop_while('continue', 'control')
+            self._pop_while('continue')
         if i == 0 and t.string in self.open_scope_tokens.get(t.name, set()):
             self._save_curr_level()
             
@@ -465,4 +471,5 @@ class StackTabber2(Tabber):
             # handle control keywords
             if i == start:
                 self._save_curr_level()
+            self._pop_while('continue');
             self._append('control', name, self._get_next_level(), y)