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Re: detecting SMIL syntax errors

From: Henning Timcke <henning.timcke@werft22.com>
Date: Fri, 30 Apr 1999 17:12:56 +0200
Message-ID: <3729C878.E4EC8A4B@werft22.com>
To: HIYAMA Masayuki <hiyama@glocom.ac.jp>
CC: Philipp Hoschka <ph@w3.org>, WWW SMIL ML <www-smil@w3.org>, wwv-s@glocom.ac.jp
Hi
I agree with you opinion;
putting any smil code in an XML parsing applications as sq html pro 5.0
really evoques error messages.
From your point of view, who should take care of your considerations ?
And: how much additional work has to be done to meet your expectations ? 
Henning Timcke
HIYAMA Masayuki wrote:
> 
> Hi,
> 
> On Mon, 05 Apr 1999 10:36:45 -0400
> Philipp Hoschka <ph@w3.org> wrote:
> 
> > Given recent problems reported on this list, I thought it may be
> > worthwhile to point out that SMIL players will give you syntax errors
> > for syntax that does not conform to SMIL 1.0 when you add the following
> > line at the top of the SMIL file:
> >
> > <!DOCTYPE smil PUBLIC "-//W3C//DTD SMIL 1.0//EN"
> > "http://www.w3.org/TR/REC-smil/SMIL10.dtd">
> 
> It seems reasonable and useful. But, can the SMIL community decide the
> rule? Since this issue is XML-generic, wide range of consensus should
> be required.
> 
> Also, it might be a problem that usual XML validaters cannot detect
> SMIL-specific syntax errors. For example, while <switch> in <head> can
> contain only <layout>'s, the SMIL DTD dose not express this
> constraint. Then, a SMIL-unaware parser fail to detect that type of
> violation. This problem concern what is a valid SMIL document, or what
> is a syntax checking in SMIL.
> 
> If a good XML Schema is achieved, a precisely defined XML validity
> will be equivalent to the SMIL validity; ... I expect so.
> 
> Thank you,
> --
> HIYAMA Masayuki <hiyama@glocom.ac.jp>

--
Received on Friday, 30 April 1999 11:14:36 GMT

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