Re: Trying to understand the "rx" macro.

Alex,

   While I heard of irregex before, I wasn't aware that it is a superset of
SRE's.

   Thanks for bringing this to my attention - I will look at both the design
and the
code - you will hear again from me in a month or so.

- igorhvr

On Sun, Nov 9, 2008 at 8:58 AM, Alex Shinn <[email protected]> wrote:

> Note that `rx' in SCSH is just a translator from SREs to
> POSIX strings.
>
> There's now a fully portable, native Scheme implementation
> of SREs available at:
>
>  http://synthcode.com/scheme/irregex/
>
> It has many, many more features, and includes DFA
> conversion.
>
> Even if you don't want to use this code itself, I'd
> appreciate any feedback on the extensions I've made to the
> SRE syntax.  There should be a single SRE standard (to which
> effect I'm debating writing a SRFI).
>
> --
> Alex
>
>
> "Igor Hjelmstrom Vinhas Ribeiro" <[email protected]>
> writes:
>
> > Brian and Rolf,
> >
> >    Thanks for the excellent explanation and for the pointer
> > to William's ps.gz file. I now understand how the macro works
> > and how I will go forward.
> >
> > Best Regards,
> >  Igor.
> >
> > On Sun, Nov 2, 2008 at 6:34 PM, RT Happe <[email protected]> wrote:
> >>
> >> Brian D. Carlstrom wrote [a short explanation of s48 low-level macros].
> >>
> >> Addendum: I don't seem to find the paper on explicit renaming macros,
> >> to be read as an introduction to the s48 low level macro facility,
> >> in the scsh/s48 tarball, but the .ps.gz
> >>
> >>  William D Clinger. Hygienic macros through explicit renaming
> >>  http://www.ccs.neu.edu/home/will/papers.html
> >>
> >> should do the job as well.
> >>
> >>
> >>> symbols. the third comparator argument function is less frequently used
> >>> as the gensym function, but I believe it is used to compare symbols for
> >>> equality taking into account any newly gensymed symbols, etc.
> >>
> >> To avoid terminological confusion: the "symbols/gensyms" aren't symbols
> >> but generated names.
> >>
> >>
> >> rt
> >>
> >
>