Re: [Chicken-users] using mmap files as strings?

[Peter Bex]

On Fri, Oct 22, 2010 at 06:20:01AM -0400, Felix wrote:
> I can't think of a way in the moment. Strings require a header-word,
> and the data pointed to by a pointer doesn't have that header, so it
> isn't possible to "sneak in" a pointer as a replacement of a string.
> 
> > I'm
> > specifically interested in running regular expressions across the
> > mmap space.
> 
> irregex provides a "chunk" based API, perhaps it is possible to
> define chunks over the data represented by the mmap pointer.
> Alex or Peter might be able to tell more about this.

The chunked API requires being able to extract strings from the mmapped
memory.  Chunks also only move forward, so you can't backtrack.
If the SRE gets compiled to a backtracking matcher you probably
want to include a few "commit"s because otherwise all chunks stick
around in memory, I think.  I'm not exactly sure how it handles that
though.

Cheers,
Peter
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