I'm looking for something:
1) more lightweight
2) uses xml markup syntax
3) is oriented around process/workflow -- gluing separate components
together, but client components, not distributed components.
Going the Javascript route doesn't make a lot of sense to me because MyXaml
can already do runtime execution of C#, VB, and J#. I'm looking for
something that acts like a lightweight Interpreter Pattern within the
context of the xml syntax.
Something like (off-the-cuff):
<function name="Login">
<OpenDialog name="LoginDlg"/>
<if DlgResult="OK">
<ValidateLogin args="1:{username} 2:{password}"/>
<if ValResult="true">
<CloseDialog name="LoginDlg"/>
<else>
<ShowError>Invalid login. Try again.</ShowError>
</else>
</if>
</if>
</function>
Where OpenDialog, CloseDialog, ValidateLogin, CloseDialog are methods
defined in the application, and things like DlgResult and ValResult are data
that application manages in a data pool.
As the example illustrates, the script would use reflection to invoke
application specific methods. Using method attributes, you could provide
additional information, for example exposing only methods with an
appropriate "XmlScriptable" attribute.
Probably a separate definition table would define which classes were
instantiated that provided the supporting methods. This would allow you to
extend/modify the application by changing the class being instantiated.
The nifty thing about this is that the scripting engine becomes a Mediator
Pattern and allows methods to remain completely decoupled from one
another--no object entanglement! With such an implementation, "in the
field" changes are a lot easier too--no code recompilation, etc.
And since your building on (theoretically) proven working methods, the high
level scripting calls are a lot more reliable than writing custom solutions
for every application.
It's sort of like Lego's. You build an application from provably correct
building blocks.
Marc
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Charles Goodwin
Sent: Tuesday, April 20, 2004 9:30 PM
To: [EMAIL PROTECTED]
Subject: Re: [xul-talk] I'm looking for an xml based scripting language
On Tue, 2004-04-20 at 21:23 -0400, Marc Clifton wrote:
> Has anyone done anything like this or could point me in the right
> direction?
We use Javascript to great effect.
--
- Charlie
Charles Goodwin <[EMAIL PROTECTED]>
Online @ www.charlietech.com
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