Re: Recognition of typedefs in C ?

hi,


  The better will probably be to move this recognition to the parsing
phase. The context concerns are typical things of the parser work -
nevertheless the extensions of lex can help to make some parts of the
work: with states and others concepts.
  A hierachical symbol table (in C: a tree rooted by a global table
followed by a local table for each function and next the block
structure) can do the work fine by saving the type of the identifiers.




Best regards.


David Pereira wrote:


> I need to enable the lexer to distinguish
> typedef names from ordinary identifiers. At first glance, it seemed
> that building a table of typedef names was enough - the lexer would
> consult this table and return TYPENAME if the name was found in this
> table, otherwise IDENTIFIER. However, this is inadequate since
> *context* matters. How can this context be discerned ?


--
Anthony PIRON - Researcher
Universite Libre de Bruxelles, Department of Computer Science
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Email: apiron@ulb.ac.be Web: http://www.ulb.ac.be/di/ssd/apiron

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