Hello Sebastian,

Friday, April 14, 2006, 11:26:53 AM, you wrote:

> Dmitry Stogov schrieb:
>> So some optimizations may be done fine on AST level too.

>  ASTs are useful for performing code transformations (think of language
>  extensions like William's PHPAspect or automatic refactorings as
>  examples).

how is that useful? (outside university)

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