Re: Re: Token filter for erlang-style numbers.

["Joseph Stewart" <joseph.stewart@...>]

On 10/24/06, Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> wrote:
> > Here's my semi-regular posting about erlang style numbers... this time
> > as an excuse to play with Luiz' token filter. Below is the code to
> > support this interesting (to me at least) extension:
>
> See, no need for C hacking! :-) And pretty easy to do it in Lua, right?
> (I'm not blowing my own horn here; just remarking that token filters can be
> a better alternative to hacking the Lua core to add more sugar.)

Yeah, I like it... next comes the php-style variable expansion in
string constants!

As always, thanks for a fun and powerful language!

> > -- 2#1001 means base "2" numeric constant "1001" or 9 in decimal
>
> Just note that you cannot enforce that the three parts are a single token,
> that is, 2   #   1001 will be accepted as a binary constant. Just don't
> tell your users about it :-)
> --lhf