Hey Asma, > However, have you any idea why gcc uses now hand > written lexer and parsers ? > what's wrong with lexer/ parser generated from > flex/ bison ? This is just a wild guess from my side because I was not involved in this change: I think there is generally nothing wrong with flex/bison but you would possibly switch to hand-written code to get better performance and to have better control on the code of the lexer/parser (though not depending on externals tools whose generated code might change). By using hand-written code you could then specifically tune some parts of your code. But maybe, you'll also get an answer from someone being involved in that change ;-) Best regards, Andi
