From ole2mail at mail.com  Mon Oct 18 13:00:03 2021
From: ole2mail at mail.com (Oleg Kokorin)
Date: Mon Oct 18 13:10:31 2021
Subject: [studxml-users] parser fails to find next_expect as well as
	attribute
Message-ID: <trinity-70f647d8-f381-48ea-ae3b-1483393355ef-1634576403298@3c-app-mailcom-lxa13>


   hello all

   the library has been tested version
   libstudxml-1.0.1
   as well as latest from the
   https://git.codesynthesis.com/libstudxml/libstudxml.git

   the problem is, while parsing attached XML file

   using call
   next_expect (all types of content has been tested with the same
   exception failure):

           xml::parser p (metaStream, "metadataFinder");
           p.next_expect (xml::parser::start_element, "tt",
   xml::content::mixed);


   as well as using call
   attribute

           xml::parser p (metaStream, "metadataFinder");
           p.next_expect (xml::parser::start_element);
           std::cerr << p.line () << ':' << p.column () << ": start "
                << p.name () << " attributes: "
                << p.attribute("xml:lang") << std::endl;


   in both cases exception is happening for the unable to find element or
   attribute.

   however

   the example loop is working and is returning "tt" as the first and
   "head" as second.

          for (xml::parser::event_type e: p)
           {
               switch (e)
               {
                   default:
                       std::cerr << p.line () << ':' << p.column () << ":
   start "
                            << p.name () << std::endl;
                       break;
               }
           }

   thanks
   Oleg
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From boris at codesynthesis.com  Tue Oct 19 09:55:07 2021
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Tue Oct 19 09:53:11 2021
Subject: [studxml-users] parser fails to find next_expect as well as
	attribute
In-Reply-To: <trinity-70f647d8-f381-48ea-ae3b-1483393355ef-1634576403298@3c-app-mailcom-lxa13>
References: <trinity-70f647d8-f381-48ea-ae3b-1483393355ef-1634576403298@3c-app-mailcom-lxa13>
Message-ID: <boris.20211019155308@codesynthesis.com>

Oleg Kokorin <ole2mail@mail.com> writes:

>    the problem is, while parsing attached XML file
> 
>    using call
>    next_expect (all types of content has been tested with the same
>    exception failure):
> 
>            xml::parser p (metaStream, "metadataFinder");
>            p.next_expect (xml::parser::start_element, "tt",
>    xml::content::mixed);
> 
> 
>    as well as using call
>    attribute
> 
>            xml::parser p (metaStream, "metadataFinder");
>            p.next_expect (xml::parser::start_element);
>            std::cerr << p.line () << ':' << p.column () << ": start "
>                 << p.name () << " attributes: "
>                 << p.attribute("xml:lang") << std::endl;

Can you provide a minimal but complete example that I can use to
parse the attached XML and that reproduces the problem you are
seeing?

From boris at codesynthesis.com  Thu Oct 21 05:59:38 2021
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Thu Oct 21 05:57:43 2021
Subject: [studxml-users] parser fails to find next_expect as well as
	attribute
In-Reply-To: <boris.20211019155308@codesynthesis.com>
References: <trinity-70f647d8-f381-48ea-ae3b-1483393355ef-1634576403298@3c-app-mailcom-lxa13>
	<boris.20211019155308@codesynthesis.com>
Message-ID: <boris.20211021115631@codesynthesis.com>

Oleg Kokorin <ole2mail@mail.com> writes:

> xml::parser p (metaStream, "metadataFinder");
> p.next_expect (xml::parser::start_element, "tt", xml::content::mixed);

Your tt element is in the http://www.w3.org/ns/ttml namespace:

> <tt ... xmlns="http://www.w3.org/ns/ttml" ...>

While your next_expect() call above expects an unqualified element. Try
this:

p.next_expect (xml::parser::start_element,
               "http://www.w3.org/ns/ttml", "tt",
	       xml::content::mixed);