Bugs found in 2.4 branch testing

test/simple_source/looping/08_while1_if_continue.py

@@ -7,3 +7,13 @@ def readline (self):
                 continue
 
         return
+
+# From 2.4.6 sre.py
+# Bug in 2.4 and 2.3 was parsing the nested "while 1" with a "break" in it
+def _parse(a, b, source, state):
+    while 1:
+        if b:
+            while 1:
+                break
+        else:
+            raise

uncompyle6/parsers/parse23.py

@@ -32,8 +32,19 @@ class Python23Parser(Python24Parser):
         while1stmt ::= _while1test l_stmts_opt JUMP_BACK
                        POP_TOP POP_BLOCK COME_FROM
 
-        while1stmt ::= _while1test l_stmts_opt JUMP_BACK
-                       COME_FROM POP_TOP POP_BLOCK COME_FROM
+        while1stmt ::= _while1test l_stmts_opt JUMP_BACK COME_FROM
+                       POP_TOP POP_BLOCK COME_FROM
+
+        # Python 2.3
+        # The following has no "JUMP_BACK" after l_stmts because
+        # l_stmts ends in a "break", "return", or "continue"
+        while1stmt ::= _while1test l_stmts
+                       POP_TOP POP_BLOCK
+
+        # The following has a "COME_FROM" at the end which comes from
+        # a "break" inside "l_stmts".
+        while1stmt ::= _while1test l_stmts COME_FROM JUMP_BACK
+                       POP_TOP POP_BLOCK COME_FROM
 
         list_comp  ::= BUILD_LIST_0 DUP_TOP LOAD_ATTR store list_iter del_stmt
         list_for   ::= expr for_iter store list_iter JUMP_BACK come_froms POP_TOP JUMP_BACK

uncompyle6/parsers/parse24.py

@@ -38,8 +38,21 @@ class Python24Parser(Python25Parser):
         _ifstmts_jump24 ::= c_stmts_opt JUMP_FORWARD POP_TOP
 
         # Python 2.5+ omits POP_TOP POP_BLOCK
-        while1stmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK POP_TOP POP_BLOCK COME_FROM
-        while1stmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK POP_TOP POP_BLOCK
+        while1stmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK
+                       POP_TOP POP_BLOCK COME_FROM
+        while1stmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK
+                       POP_TOP POP_BLOCK
+
+        # Python 2.4
+        # The following has no "JUMP_BACK" after l_stmts because
+        # l_stmts ends in a "break", "return", or "continue"
+        while1stmt ::= SETUP_LOOP l_stmts
+                       POP_TOP POP_BLOCK
+
+        # The following has a "COME_FROM" at the end which comes from
+        # a "break" inside "l_stmts".
+        while1stmt ::= SETUP_LOOP l_stmts COME_FROM JUMP_BACK
+                       POP_TOP POP_BLOCK COME_FROM
 
         # Python 2.5+:
         #  call_stmt ::= expr POP_TOP