[pod,px] Allow to reference an already defined variable instead of defining one in a var statement, via the '@' prefix. For example, in PX: var='@i = i + 1'. [pod] Repaired broken tests [gen] Bugfixes.

pod/actions.py

@@ -346,6 +346,10 @@ class VariablesAction(BufferAction):
             # Evaluate variable expression in vRes.
             vRes, error = self.evaluateExpression(result, context, expr)
             if error: return
+            # Replace the value of global variables
+            if name.startswith('@'):
+                context[name[1:]] = vRes
+                continue
             # Remember the variable previous value if already in the context
             if name in context:
                 if not hidden:
@@ -364,6 +368,7 @@ class VariablesAction(BufferAction):
         if hidden: context.update(hidden)
         # Delete not-hidden variables
         for name, expr in self.variables:
+            if name.startswith('@'): continue
             if hidden and (name in hidden): continue
             del context[name]
 # ------------------------------------------------------------------------------

pod/buffers.py

@@ -242,7 +242,7 @@ class MemoryBuffer(Buffer):
     actionRex = re.compile('(?:(\w+)\s*\:\s*)?do\s+(\w+)(-)?' \
                            '(?:\s+(for|if|else|with)\s*(.*))?')
     forRex = re.compile('\s*([\w\-_]+)\s+in\s+(.*)')
-    varRex = re.compile('\s*([\w\-_]+)\s*=\s*(.*)')
+    varRex = re.compile('\s*(@?[\w\-_]+)\s*=\s*(.*)')
 
     def __init__(self, env, parent):
         Buffer.__init__(self, env, parent)