[Apparmor-dev] AppArmor Development

[Jacob I. Torrey]

Thanks for the overview. I would like to use ANTLR if possible in C++,
since that's what I have the most experience in.

JT

John Johansen wrote:
> Jacob I. Torrey wrote:
>   
>> John,
>>     I have checked out the code and I agree that it isn't the prettiest
>> thing I've seen. What functionality should the parser be able to handle?
>> I think that quite an extensive overhaul of the code is needed to make
>> it cleaner.
>>
>>     
> yeah, basically a rewrite is needed.
>
> The functionality that is needed is a parser library, so it can be
> shared by the various tools (parser, genprof/logprof, merge tool,
> profile editor, lint tool, ...)
>
> I see the parser lib split into a few levels/sections
> - Basic parsing
>   - multiple entry points so that it can be used to parse individual
>     statemetns, as well as whole files.
>   - manage the generated parse tree objects, iterate over them
>   - be able to add delete parsed rules.  eg. a tool may add a rule at a
>     time as they are entered.
>   - output parse tree as a profile
>   - retain comments
> - Tree manipulation
>   - variable resolution
>   - conditional resolution
>   - include expansion
> - DFA generation and regex manipulation
>   - generate the dfa
>   - handle regex merging and overlapping
>   - output
> - Profile loading
>   - loading, dumping profiles
> - swig wrappers so it can be used by various languages.
>
>
> I have been doing some work to clean up the dfa code, and plan to
> continue with it.  I also started coding a Basic parser in yacc/flex
> with multiple entry points but haven't gotten very far (I could dig it
> up and send it to you).
>
>
> john
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