[REBOL] Re: template driven development? Re: Rebol Server Pages
From: al:bri:xtra at: 9-Oct-2002 21:33
YS wrote:
> This also reminds me of Enhydra's XMLC ( http://www.enhydra.org ). XMLC is
one of the thing that solves the problem with embedding other languages
within the HTML codes.
> The clean separation between "UI" and "logic" allows for different teams
(UI and logic) to work in parallel once they have agreed on the use of
certain naming conventions.
> Perhaps we can learn from XMLC to see how we can incorporate some of the
features in one of the frameworks.
Here's some HTML copied from the draw poker demo:
<HEAD>
<TITLE>Welcome to Larry and Daryl's EnhyDraw! poker</TITLE>
</HEAD>
<html>
<head>
<title>Welcome to Larry and Daryl's Enhydra Poker!</title>
</head>
Two head sections in the same page? With two different titles?
Here's some more HTML copied from the FormUpload page:
<FORM name="myForm" enctype="multipart/form-data" method=POST
action=FormUpload.po>
<INPUT type=hidden name=theFileName>
<H2>Input1: </H2><INPUT type=text name=input1 size=30>
<H2>Upload: </H2><INPUT type=file name=upload size=30>
<P><H2>Submit: </H2><INPUT type=submit name=submit size=30
onClick="setFileName()">
</FORM>
They're using presentation markup (H2 tags) for input labels? There's no
closing tags for the page; the "</FORM>" isn't followed by closing tags for
the "<body>" and "<html>" tags. Also, they're using uppercase for tag names
which isn't XML compatible, and not all attribute values are quoted.
But the above is probably because they're using visual web page design tools
to create/maintain the pages, and because they've not got all the content
from the program (content like title tag content is expressed outside the
program). Presumably these problems would be fixed by using a XML-compatible
visual web page design tool?
pekr might be interested in this page:
http://barracuda.enhydra.org/cvs_source/Barracuda/docs/comp/high_level_overv
iew.html
and looking for:
Q: How does the BTemplate work?
The concept of using id attributes to tell the parsing program where to get
the data from can be easily implemented in Rebol, once one has a adequate
HTML parser. :) Except that in the examples, it's changed to using the class
attribute instead. :-\ Here's an example:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html id="HelloWorld">
<head><title class="Dir::Get_Data.HelloWorld.Title">[Title]</title></head>
<body style="font-family: Georgia, Arial, Times New Roman"
bgcolor="#FFFFFF">
<h2 class="Dir::Get_Data.HelloWorld.Title">[Title]</h2>
<p class="Dir::Get_Data.HelloWorld.Descr">[Descr]</p>
<p class="Dir::Get_Data.HelloWorld.Header">[Nav Header goes here]</p>
<p>Here's our third shopping list:<br></p>
<table summary="foo">
<tr class="Dir::Iterate_Start.Groceries Dir::Iterate_Next.Groceries">
<td bgcolor="#8080FF">
<font color="#FFFFFF">
<span class="Dir::Get_Data.Groceries.RowCntr">1</span>.
<strong><span class="Dir::Get_Data.Groceries.Item">Corn</span></strong>
(<span class="Dir::Get_Data.Groceries.Qty">3 cans</span>)
</font>
</td>
</tr>
<tr class="Dir::Iterate_Next.Groceries">
<td>
<em>
<span class="Dir::Get_Data.Groceries.RowCntr">2</span>.
<strong><span class="Dir::Get_Data.Groceries.Item">Peas</span></strong>
(<span class="Dir::Get_Data.Groceries.Qty">4 bags</span>)
</em>
</td>
</tr>
<tr class="Dir::Iterate_End.Groceries Dir::Discard" bgcolor="#8080FF">
<td><font color="#FFFFFF">3. <strong>Bannanas</strong> (1
bunch)</font></td>
</tr>
<tr class="Dir::Discard">
<td><strong>...</strong></td>
</tr>
</table>
<p class="Dir::Get_Data.HelloWorld.Footer" align="center">[Footer goes
here]</p>
</body>
</html>
I wonder is pekr would be happier with this? :) The equivalent in Rebol
would replace "::" with "/", and "." with "/". Except that I think the
example above is faulty. I'm under the impression that the presentation
stuff will vanish, as it's replaced? :-\ I could well be wrong.
But that's enough rambling from me.
Andrew Martin
ICQ: 26227169 http://valley.150m.com/
