Re: [Qexo-general] New XQuery article (modules support)

[Per Bothner]

Jun Yu wrote:

> It is very nice Qexo 1.7.90 can support modules. But I still not clear how
> to use it. Perhaps I did not explain clearly what I need.  The function
> "#include" I need means: In one Xql file can "include" another Xql
> filename.

I don't see what your problems has to do with "#include".  The XQuery
specification defines "library modules" that (in Qexo) can be separately
compiled.  I mentioned modules because they serve the purpose of
separating definitions into a separate file, like #include does.

> Because I want to store configuration information such as Path information
> in an XML file.

Well, there is the standard web.xml file.  If you want to do something
different, you can of course, but you may have to do some experimentation.

> Then define an Xql file or function to get the path
> information.

Place library constants and functions in a "library module".

> Finally all other Xql files can "include" this file to get
> the Path information.

Other files can import a library module.


> But I check the article "Generating XML and HTML using XQuery" again.
> You used request-servlet-path() to get the reuqest URL, that is
> "http://.../~jyu/dbis/";, right ?

No, it only gets the servlet path (the request's getServletPath),
which is only part of the URI.  See 
http://www.gnu.org/software/qexo/servlet.html

> And servlet-context-realpath() to get the root directory of the
> application, that is "/home/jyu/.../jakarta-tomcat-4.1.27/webapps/dbis/",
> right ?

I believe so.

> It seems that you put your XML files into the root directory of the
> application.
> But if I do, it does not work. I have to put all my XML files into
> "/home/jyu/public_html/dbis/".  "/public_html" is the default directory to
> store HTML files in Suse Linux.

But that is only for Apache.  For Tomcat it depends on how you configure
your web application.

It's been a while since I really played with this, and I'm concentrating
on module issues, so I can't give off-the-top-of-my-head answers about
servlets right now.
--
        --Per Bothner
address@hidden   http://per.bothner.com/