[PATCH 0/2] sepolgen: update for the latest reference policy

[PATCH 0/2] sepolgen: update for the latest reference policy

[Karl MacMillan]

These patch series updates the sepolgen parser (refparser.py) to work 
with the latest reference policy. The first patch updates the parsing 
library (PLY) to a more recent version. The second patch updates the 
grammar and includes some general cleanups of the parser.

This highlights why I think that moving the interfaces and other 
reference policy language constructs into the language is a good idea. 
Tracking the reference policy is going to be time consuming and the 
current grammar is ambiguous in ways that are hard to fix. I also end up 
changing the parser to handle harmless "mistakes" in the reference 
policy (e.g., spurious semi-colons at the end of ifdefs). These would be 
caught by a compiler but are silently accepted by M4.

Karl

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