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

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