Identifying language constructs

Identifying language constructs

[Lab User]

Hi
I need a way to programically recognise basic construct of the following
languages:
Ada, C, C++, Java.
I need to recognise comments statements, declarations, assignments,
function calls,
other operations, class declarations, list of inherited methods for the
class,
list of newly defined methods, correctly recognise if a class is defined
inside other class, etc.

Any suggestion how to do it?
Any ideas for any of the listed (or other) languages ?

Thanks a lot

Re: Identifying language constructs

[The Wilkinsons]

Lab User wrote in message <389BA0DC.F1FD7C73@uah.edu>...

>I need a way to programically recognise basic construct of the following
>languages:
>Ada, C, C++, Java.
>I need to recognise comments statements, declarations, assignments,
>function calls,
>other operations, class declarations, list of inherited methods for the
>class,
>list of newly defined methods, correctly recognise if a class is defined
>inside other class, etc.
>
>Any suggestion how to do it?


Get a decent "yacc" and "lex" and the appropriate ".y" and ".l" files
for those languages.  Should be available somewhere under GNU
license.

Making yacc simply *recognize* the constructs, rather than generate
code for them, isn't overwhelmingly difficult, except for figuring out
what to do with shift/reduce conflicts.  (Probably just ignore them
for your purposes?)

Re: Identifying language constructs

[Ira D. Baxter]

You could struggle to find your own parser generator and appropriate
grammars.
I assume you don't want spend a year or two doing this.
If not, look at the DMS Reengineering Toolkit
(http:/www.semdesigns.com/Products/DMS/DMSToolkit.html).
We have done all that and lots for the languages you list, and other
languages besides.
But... its a commercial product.



Lab User wrote in message <389BA0DC.F1FD7C73@uah.edu>...
>Hi
>I need a way to programically recognise basic construct of the following
>languages:
>Ada, C, C++, Java.
>I need to recognise comments statements, declarations, assignments,
>function calls,
>other operations, class declarations, list of inherited methods for the
>class,
>list of newly defined methods, correctly recognise if a class is defined
>inside other class, etc.
>
>Any suggestion how to do it?
>Any ideas for any of the listed (or other) languages ?
>
>Thanks a lot
>