From: Taku Nakajima <tnakajima@...>
Date: 2002-12-30T21:20:32+09:00
Subject: Re: Another take on RDoc's templates


At Sat, 28 Dec 2002 17:16:45 +0900,
Bruce Williams wrote:
> 
> On Saturday 28 December 2002 02:31 am, Tom Sawyer wrote:
> | currently i use eRuby. I would have liked to use Amrita, but it seems the
> | attribute templating is still considered experimental.
> 
> If you're talking about attribute expansion; yes it is still 'experimental' 
> (as of 1.0), but I speak from experience when I say it is definitely working.  
> I use amrita for the vast majority of my web projects (in the past I used 
> eruby) and attribute expansion has never been a problem.  I'm guessing it is 
> only considered "experimental" due to the fact its implementation may be 
> changed sometime in the future (I defer to Nakajima-san for further details 
> and/or clarification).

I agree with you. I think "attribute expansion" is working well . 

amrita's experimental features are experimental partly because they
are not tested enough. But main reason is it's easy to add a feature
but difficult to remove one once it was released and get users.

> | i'm curious as to the relative performace comparisons between the various
> | templating options. anyone have any experience to draw upon for this?
> |
> | -transami
> 
> Eruby/erb is decidedly faster than amrita due to the way data is applied to 
> the templates (amrita actually understands the template 'context' when the 
> data is applied, enabling it to apply sequences repetatively, etc-- this 
> "smart" templating comes at an obvious perfomance cost)-- other templating 
> libraries blindly insert data, IIRC.  Amrita is, of course, an excellent 
> choice for static page creation, but I would caution using it in larger, 
> heavy bandwidth projects where templates would be expanded dynamically.  
> Speed optimization is definitely one of the chief areas of concern in Amrita 
> development; I'm sure the situation will become more amenable in the future 
> as the project matures.

Recently a good idea of new compiler architecture came to me . I think
the new version of amrita will produce a Ruby code as fast as a plain
Ruby. And it will also generate a C code (extention module) that runs
faster than a Ruby equivalent.

--
Taku Nakajima
http://www.walrus-ruby.org/amrita/