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Date: Thu, 15 Oct 2009 10:14:11 -0700
Message-ID: <cdbebedf0910151014r63d4c6f4s2a89d610e6dd8752@mail.gmail.com>
Subject: Re: ESME-26 The message parser should ignore # in urls
From: David Pollak <feeder.of.the.bears@gmail.com>
To: esme-dev@incubator.apache.org
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On Thu, Oct 15, 2009 at 10:09 AM, Richard Hirsch <hirsch.dick@gmail.com>wrote:

> OK - what do we have to do to solve the problem? Rewrite the parser?
>

I'm not sure.

I think there are a couple of things... first, we can write some unit tests
for the elements of existing parser and see how it's failing for particular
cases and if there's something that can be done.

If that doesn't work, we can change from stream of characters to a stream of
bytes.  Most of the existing parsing logic should work (or be easily
ported), but we'll have finer control over the byte-streams for non-western
character sets.


>
> D.
>
> On Thu, Oct 15, 2009 at 7:00 PM, David Pollak
> <feeder.of.the.bears@gmail.com> wrote:
> > I think part of the problem is that the RFC was written against a
> > byte-stream, but we're running the parser against a character stream.
> >
> > On Thu, Oct 15, 2009 at 9:18 AM, Xuefeng Wu <benewu@gmail.com> wrote:
> >
> >> Thank you for your information.
> >> What we should do for this now?
> >> let the wrong thing stay or find out a resolution?
> >>
> >>
> >> On Thu, Oct 15, 2009 at 6:40 PM, Vassil Dichev <vdichev@apache.org>
> wrote:
> >>
> >> > > Why the name is *escape*, anyone could explain?
> >> >
> >> > I think most of the MsgParser concerning URLs is transformed from
> >> > RFC1738 (http://www.faqs.org/rfcs/rfc1738.html) BNF notation into
> >> > Scala using parser combinators. So for any inconsistencies you've
> >> > found the point of reference is this RFC.
> >> >
> >> > As for the escape, it's a special character which modifies the meaning
> >> > of the following characters (more info here:
> >> > http://en.wikipedia.org/wiki/Escape_character). In the RFC the escape
> >> > is defined like this:
> >> >
> >> > escape         = "%" hex hex
> >> >
> >>
> >>
> >>
> >> --
> >> Global R&D Center,Shanghai China,Carestream Health, Inc.
> >> Tel:(86-21)3852 6101
> >>
> >
> >
> >
> > --
> > Lift, the simply functional web framework http://liftweb.net
> > Beginning Scala http://www.apress.com/book/view/1430219890
> > Follow me: http://twitter.com/dpp
> > Surf the harmonics
> >
>


-- 
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Surf the harmonics

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