I like the semicolon idea.
But doesn't it imply changing web2py, anywhere where args and vars are
used, like the URL function?.


On Apr 8, 2:22 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
> I think if ; is present it be used by default to delimit the args
> since there cannot be confusion there
>
> /a/c/f.ext;a0/a1/a2
> /a/c/f/a0/a1/a2.ext
>
> should be parsed in the same way.
>
> routes_in and routes_out should not be affected since they only
> rewrite the URL before web2py interprets it.
>
> On Apr 8, 12:43 pm, Thadeus Burgess <thade...@thadeusb.com> wrote:
>
> > I just want it to be able to routes_in on both with ; and without ;.
>
> > This is because my blog is indexed on google, and I want my old links
> > to still work If I moved over to the ; method.
>
> > -Thadeus
>
> > On Thu, Apr 8, 2010 at 11:56 AM, Jonathan Lundell <jlund...@pobox.com> 
> > wrote:
> > > On Apr 8, 2010, at 9:37 AM, Thadeus Burgess wrote:
>
> > >> How will we be able to configure to use one or the other?
>
> > > I'm thinking an alternative variable in routes.py.
>
> > > Also, there would be (I think) a provision for application-specific 
> > > routes.py files, so once the application is resolved at the top level, 
> > > the application-specific parsing could either be in the global routes.py 
> > > (as now) or the app-specific version.
>
> > >> Will it be able to do "Both" at the same time (for routes_in of
> > >> course). I ask since certain web2py sites are scanned in google, you
> > >> don't want the old links to dis-appear.
>
> > > Perhaps, but with some restrictions, since using / as the args separator 
> > > leads to ambiguities that don't exist with ;.
>
> > > I'd like to be able to use standard Python libraries to do the main 
> > > parsing work. Seehttp://docs.python.org/library/urlparse.html
>
> > > BTW, RFC2396 actually allows a ;-separated parameter on each component of 
> > > the path; you could 
> > > havehttp://domain.com/app;arg1/ctlr;arg2/function;arg3?query_string. I 
> > > don't see a use for that in the web2py architecture, though.
>
> > >> -Thadeus
>
> > >> On Thu, Apr 8, 2010 at 11:30 AM, mdipierro <mdipie...@cs.depaul.edu> 
> > >> wrote:
> > >>> +1
>
> > >>> On Apr 8, 11:25 am, Jonathan Lundell <jlund...@pobox.com> wrote:
> > >>>> (Context: I've been working on URL parsing.)
>
> > >>>> One of the difficulties that parsing web2py URLs presents is that the 
> > >>>> boundary between /a/c/f and args isn't explicit, along with the fact 
> > >>>> that pieces of /a/c/f can be implied (in particular when routes.py is 
> > >>>> being used).
>
> > >>>> RFC2396 (1998) introduced (or rather extended) the notion of 
> > >>>> 'parameters', taking advantage of the fact that ';' is reserved. So 
> > >>>> the RFC2396 approach is to write: /a/c/f;parameters?query_string, or 
> > >>>> in web2py terms /a/c/f;args?vars.
>
> > >>>> That is, the boundary between /a/c/f and args is marked with a 
> > >>>> semi-colon instead of a slash. Args can of course be further divided 
> > >>>> however one likes; vars is subdivided with '&'.
>
> > >>>> What I'm working on is an alternative to (or rather extension to) the 
> > >>>> routes.py logic that is capable of supporting arbitrary encoding where 
> > >>>> appropriate (especially in args and vars) and that does not rely on 
> > >>>> regexes to do the work. The present scheme would remain in place.
>
> > >>>> Which brings me to my question: I'd like to use the ';' convention to 
> > >>>> separate /a/c/f from args in this new regime. Does anyone have any 
> > >>>> strong feelings about it one way or the other?
>
> > >>>> (One last thing: the architecture would be somewhat modular, so that 
> > >>>> besides the current mechanism and the one I'm describing, it would be 
> > >>>> fairly straightforward to introduce new ones.)
>
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