>> >> As you may know, with 16rff change, we cannot anymore use a radix >> notation combined with an exponent notation. >> At least for base > 14, the exponent letter is taken as an ordinary digit. > > do you know how this is handled in VW? > > Stef > >> The options are: >> >> 1) revert the change >> >> 2) abandon combined radix+exponent notation >> all the code for printing Float with different radix, and also for >> scanning can be removed >> Or I can provide a subclass of SqNumberParser for backward compatibility. >> >> 3) find a new syntax for radix+exponent >> >> For example, 16r7f_e6 16r7f^6 16r7f#6 >> None of these is ambiguous with existing code. >> >> Or maybe use an uppercase R for uppercase only digits... >> >> 4) use q exponent to at least enable base 16 >> This is hackish and not universal, but I guess hardly anybody ever >> used a base > 16. > > what would be the example >> >> ------------------------------------- >> >> What would squeak/pharo folks choose ? >> >> ------------------------------------- >> Personnally, I'm OK with 1) and 2). >> But 2) deserves a bit more discussion >> After all this is a change of Squeak syntax. >> I find Dan's notation educative and fun, especially for writing tests. >> But it is a non portable Squeakish thing, rarely used, and it does not >> really has much value for industrial usage, > > I read the mail than juan mentioned but I could not understand or I read > another one :) > >> On the other hand, is it really necessary to parse 16rff ? > > sounds like? > >> I dislike 3) because I find my own propositions bad. >> Also, if we remove Squeak-specific syntax for compatibility reasons, >> why the hell adding a new uncompatible syntax? > > Yes > what does our wonderful ANSI standard mentions? > >> Previous usage of e notation was far better because just extending an >> existing syntax, not creating a new one. >> Maybe you'll have other ideas... > > Stef
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