xml and buffers

xml and buffers

[Junod Antoine]

Hello gurus, 

I'm a bit into trouble wih buffers and xml parsing. Here is my problem:

I've got a .xhtml with the following lines:

     [...]
     <meta name="course_name" content="Génie Logiciel" />
     <meta name="date" content="23 décembre 2005" />
     [...]
     <title>Auction: document d'analyse</title>
     [...]

I'm trying to store the content of the meta tag in a buffer, one per
meta tag, (ie "Génie Logiciel" in buffer course_name, "23 décembre
2005" in buffer date) to use these buffers when I meet the title tag:

     \XMLifequalelse{meta}{name}{course_name}
          {\startbuffer[course_name]\XMLpar{meta}{content}{}\stopbuffer}{}
     \XMLifequalelse{meta}{name}{date}
          {\startbuffer[date]\XMLpar{meta}{content}{}\stopbuffer}{}
     \defineXMLenvironment [title] {\startstandardmakeup
                                    \getbuffer[course_name]
                                    \getbuffer[date]}{\stopstandardmakeup}

But it does not print anything else than the title.

Any idea?

Thanks a lot for you help!
-AJ 

Re: xml and buffers

[Hans Hagen]

Junod Antoine wrote:

>Hello gurus, 
>
>I'm a bit into trouble wih buffers and xml parsing. Here is my problem:
>
>I've got a .xhtml with the following lines:
>
>     [...]
>     <meta name="course_name" content="G�nie Logiciel" />
>     <meta name="date" content="23 d�cembre 2005" />
>     [...]
>     <title>Auction: document d'analyse</title>
>     [...]
>
>I'm trying to store the content of the meta tag in a buffer, one per
>meta tag, (ie "G�nie Logiciel" in buffer course_name, "23 d�cembre
>2005" in buffer date) to use these buffers when I meet the title tag:
>
>     \XMLifequalelse{meta}{name}{course_name}
>          {\startbuffer[course_name]\XMLpar{meta}{content}{}\stopbuffer}{}
>     \XMLifequalelse{meta}{name}{date}
>          {\startbuffer[date]\XMLpar{meta}{content}{}\stopbuffer}{}
>     \defineXMLenvironment [title] {\startstandardmakeup
>                                    \getbuffer[course_name]
>                                    \getbuffer[date]}{\stopstandardmakeup}
>
>But it does not print anything else than the title.
>  
>
buffers serve a different purpose and are part if a text flow 

\starttext

\defineXMLsingular
  [meta]
  [name=,content=]
  {\setevariables[document:meta][\XMLop{name}=\XMLop{content}]}

\defineXMLenvironment
  [title]
  {}
  {\startstandardmakeup
       \getvariable{document:meta}{course_name} \endgraf
       \getvariable{document:meta}{date} \endgraf
   \stopstandardmakeup}

\startXMLdata
<meta name="course_name" content="Genie Logiciel"   />
<meta name="date"        content="23 decembre 2005" />

<title/>
\stopXMLdata

With a little extension (i'll add it) we can prevent unwanted expansion: 

\unprotected \def\setvalueXMLpar#1#2#3%
 {\@EA\let\csname#1\@EA\endcsname
    \csname\ifcsname\@@XMLvariable:#2:#3\endcsname
      \@@XMLvariable:#2:#3\else\s!empty\fi\endcsname}

\defineXMLsingular
  [meta]
  [name=,content=]
  {\setvalueXMLpar{document:meta:\XMLop{name}}{meta}{content}}

\defineXMLenvironment
  [title]
  {}
  {\startstandardmakeup
       \getvalue{document:meta:course_name} \endgraf
       \getvalue{document:meta:date} \endgraf
   \stopstandardmakeup}

\startXMLdata
<meta name="course_name" content="Genie Logiciel"   />
<meta name="date"        content="23 decembre 2005" />

<title/>
\stopXMLdata


\stoptext

Re: xml and buffers

[Junod Antoine]

Thanks a lot!!!
-AJ


On Thu, Jan 19, 2006 at 05:55:22PM +0100, Hans Hagen wrote:
> Junod Antoine wrote:
> 
> >Hello gurus, 
> >
> >I'm a bit into trouble wih buffers and xml parsing. Here is my problem:
> >
> >I've got a .xhtml with the following lines:
> >
> >    [...]
> >    <meta name="course_name" content="G�nie Logiciel" />
> >    <meta name="date" content="23 d�cembre 2005" />
> >    [...]
> >    <title>Auction: document d'analyse</title>
> >    [...]
> >
> >I'm trying to store the content of the meta tag in a buffer, one per
> >meta tag, (ie "G�nie Logiciel" in buffer course_name, "23 d�cembre
> >2005" in buffer date) to use these buffers when I meet the title tag:
> >
> >    \XMLifequalelse{meta}{name}{course_name}
> >         {\startbuffer[course_name]\XMLpar{meta}{content}{}\stopbuffer}{}
> >    \XMLifequalelse{meta}{name}{date}
> >         {\startbuffer[date]\XMLpar{meta}{content}{}\stopbuffer}{}
> >    \defineXMLenvironment [title] {\startstandardmakeup
> >                                   \getbuffer[course_name]
> >                                   \getbuffer[date]}{\stopstandardmakeup}
> >
> >But it does not print anything else than the title.
> > 
> >
> buffers serve a different purpose and are part if a text flow 
> 
> \starttext
> 
> \defineXMLsingular
>  [meta]
>  [name=,content=]
>  {\setevariables[document:meta][\XMLop{name}=\XMLop{content}]}
> 
> \defineXMLenvironment
>  [title]
>  {}
>  {\startstandardmakeup
>       \getvariable{document:meta}{course_name} \endgraf
>       \getvariable{document:meta}{date} \endgraf
>   \stopstandardmakeup}
> 
> \startXMLdata
> <meta name="course_name" content="Genie Logiciel"   />
> <meta name="date"        content="23 decembre 2005" />
> 
> <title/>
> \stopXMLdata
> 
> With a little extension (i'll add it) we can prevent unwanted expansion: 
> 
> \unprotected \def\setvalueXMLpar#1#2#3%
> {\@EA\let\csname#1\@EA\endcsname
>    \csname\ifcsname\@@XMLvariable:#2:#3\endcsname
>      \@@XMLvariable:#2:#3\else\s!empty\fi\endcsname}
> 
> \defineXMLsingular
>  [meta]
>  [name=,content=]
>  {\setvalueXMLpar{document:meta:\XMLop{name}}{meta}{content}}
> 
> \defineXMLenvironment
>  [title]
>  {}
>  {\startstandardmakeup
>       \getvalue{document:meta:course_name} \endgraf
>       \getvalue{document:meta:date} \endgraf
>   \stopstandardmakeup}
> 
> \startXMLdata
> <meta name="course_name" content="Genie Logiciel"   />
> <meta name="date"        content="23 decembre 2005" />
> 
> <title/>
> \stopXMLdata
> 
> 
> \stoptext
> 
> 
> 
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context

Re: xml and buffers

[Junod Antoine]

On Thu, Jan 19, 2006 at 05:55:22PM +0100, Hans Hagen wrote:
> Junod Antoine wrote:
> 
> >Hello gurus, 
> >
> >I'm a bit into trouble wih buffers and xml parsing. Here is my problem:
> >[...]
>
> \defineXMLsingular
>  [meta]
>  [name=,content=]
>  {\setevariables[document:meta][\XMLop{name}=\XMLop{content}]}

It works fine for all "normal" characters but not for accented
characters. Is there a workaround?

I'm using the ConTeXt version of the 16 of this month and the latest
stable version of pdftex.

The .log of the compilation is available here:

     http://zapata.tots-ns.net/analysis.log

The parsed .xhtml is here:

     http://zapata.tots-ns.net/analysis.xhtml

and the .tex is there:

     http://zapata.tots-ns.net/analysis.tex

One more time, thanks a lot for all your help.
Have a nice week-end
-AJ