On Oct 2, 2008, at 10:36 , Timothy S. Nelson wrote:
On Thu, 2 Oct 2008, Timothy S. Nelson wrote:
Now that Perl6 is in the mix, though, I think that the best way to
do it is to make roles that model eg. Nodes, Plexes (Documents),
Elements, and the like, and then have operators on them do all the
work (like my idea of using a slash for a combined feed and call
code operator). I could be wrong, but it seems to me that we could
get something that's somewhat like XPath this way, without having
to worry about defining an XPath grammar or anything.
I'm talking to myself here :). The guys on IRC convinced me that
the way to go might be something like a grammar, but that does trees
and tree transformations instead of a text input stream. See the
IRC log for details :).
I'm trying to find Trey to get his example, but I was under the pretty
strong impression that rules could be treated as higher level entities
in a pattern, thus allowing you to e.g. drill down into an XML
document without needing to specify explicit paths. WHich is what I
recall his example doing,
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
