python imports

Hello CEDET developers,

I'm investigating how to parse python's imports for the cases:

1. from ... import <classes> (works well in current implementation)
  Example:
  from a.b.c import Class1, Class2

2. from ... import <modules> (doesn't work)
  Example:
  from a.b.c import module1, module2

  In this case parser must create:
    - two INCLUDE-TAGs: 'a.b.c.module1' and 'a.b.c.module2'.

When we import something we don't know if it is module or class or
function... So include-tag should be 'a.b.c.something', 'a.b.c.class1',
'a.b.c.module1'. And then in the functions
'semantic-dependency-find-file-on-path' and 'semantic-tag-include-filename'
we can guess which file to open:
  - a/b/c/something.py
  - a/b/c.py   class:something
  - a/b/c/__init__.py    class:something

My question is: how can i build the grammar which makes 2 include tags from
the string: 'from a.b.c import module1, module2'. I need to remember
context ('a.b.c') and then build a full module path (format "%s.%s" "a.b.c"
"module1") ?

Thanks,
-Andrey

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