Re: XML tools for Octave

[Andy Adler]

On Tue, 13 Jun 2006, Alois Schloegl wrote:
> > > > 4. Confused by processing instructions
> > > >      <?xml version="1.0" encoding="UTF-8"?>
> > > What do you mean by "confused"? So far I've not observed a problem with 
> > > this.
> >
> >
> > The parser gives an error for this file.
> >      <?xml version="1.0" ?><a></a>
> Not for me, I get:
>
> t=xmlstruct('<?xml version="1.0" ?><a></a>')
> warning: resizing object with index = 502 out of bounds
> warning: resizing object with index = 1 out of bounds
> warning: resizing object with index = 1 out of bounds
> t =
> {
> data =
>
> (,
>   [1] =
>   {
>     version = 1.0
>     x_ = 1.0
>   }
>
>   [2] =
>   {
>     1x1 struct array containing the fields:
>
>   }
>
>   [3] =
> ,)
>
> name =
>
> (,
>   [1] = x_xml
>   [2] = a
>   [3] = a
> ,)
>
> type =
>
> (,
>   [1] = 1
>   [2] = 1
>   [3] = 3
> ,)
>
> }

But that means that the processing instructions are represented
as element data. Is that what you want??

> > > Currently, the biggest issue for me is that the outcome needs some 
> > > postprocessing.
> > > Instead of
> > >      X.data.='aECG'
> > >      X.sub = {anystruct}
> > >
> > > I'd like to see
> > >      X.aECG = {anystruct}
> >
> >
> > Yes. This would be much better.
> >
> > Instead of just complaining, I've decided to make a positive proposal.
> Good..
>
> > Attached is a concept parser (it just parses files to stdout), based
> > on the libexpat library.
> >
> > The advantage is that libexpat is available on all linux platforms and
> > is distributed with Matlab on windows, so it would be fairly easy to
> > port to Matlab as well.
> >
> > Could you take a look to give some feedback on this parser?
>
> Ok. I compiled it with
>
> mkoctfile xmlparse.cc
>
> octave2.9:3> xmlparse('Exa01.xml')
> octave2.9: symbol lookup error: /home/schloegl/matlab/octave/xmlparse.oct: 
> undefined symbol: XML_ParserCreate
> address@hidden:~/matlab/octave$

> Did I miss something ?

yes, you need to compile with
    mkoctfile xmlparse.cc -lexpat


--
Andy Adler <address@hidden> 1(613)562-5800x6218