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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