Rails - Feb 2006 - Native erb lacks -%>, where is Rails'' erb?

Native ERB in ruby, and eruby, seem to lack the -%> feature for
suppressing trailing newlines.  Thus
erb -n script
gives errors.  Where is Rails ERB so I can invoke it directly?
        Thank you
        Hugh

It''s a standard library located in /usr/local/lib/ruby/1.8/erb.rb

In order to enable a trim mode -%> you have to instantiate ERB object
with trim mode parameter like

e = ERB.new(str, nil, ''-'')

--
Kent
---
http://www.datanoise.com

On 2/20/06, Hugh Sasse <hgs@dmu.ac.uk> wrote:
> Native ERB in ruby, and eruby, seem to lack the -%> feature for
> suppressing trailing newlines.  Thus
> erb -n script
> gives errors.  Where is Rails ERB so I can invoke it directly?
>         Thank you
>         Hugh
>
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

On Mon, 20 Feb 2006, Kent Sibilev wrote:
> It''s a standard library located in /usr/local/lib/ruby/1.8/erb.rb
> 
> In order to enable a trim mode -%> you have to instantiate ERB object
> with trim mode parameter like
> 
> e = ERB.new(str, nil, ''-'')
Ah, so I need erb -T - file

  -T [trim_mode]   specify trim_mode (0..2, -)

Thank you.   I couldn''t find that before, but trim mode was the
key.
> 
> --
> Kent
        Hugh

> In order to enable a trim mode -%> you have to instantiate ERB object
> with trim mode parameter like
> 
> e = ERB.new(str, nil, ''-'')
> 

Inside rails, I add the following line in my 
config/custom_environment.rb

  ActionView::Base.erb_trim_mode=''%<>-''

that enables all erb options

    %  enables Ruby code processing for lines beginning with %
    <> omit newline for lines starting with <% and ending in %>
    >  omit newline for lines ending in %>

Simo
 AddSW

-- 
Posted via http://www.ruby-forum.com/.

On Mon, 20 Feb 2006, Simo Gal wrote:
> Inside rails, I add the following line in my 
> config/custom_environment.rb
> 
>   ActionView::Base.erb_trim_mode=''%<>-''
> 
> that enables all erb options
> 
>     %  enables Ruby code processing for lines beginning with %
>     <> omit newline for lines starting with <% and ending in %>
>     >  omit newline for lines ending in %>
by which I think you meant:

      -  omit newline for lines ending in -%>

Thank you.  My problem was how to reproduce it outside rails, but this
is good to know too.
> 
> Simo
>  AddSW
> 
        Hugh

I really like the % option, but it doesn''t seem to be something
that''s
embraced in the community.  Why is that?

Michael

Maybe that because there is a recommendation to use helpers for cases
that require an even slightly more complicated logic in views.


On 2/20/06, Michael Trier <mtrier@gmail.com>
wrote:
> I really like the % option, but it doesn''t seem to be something
that''s
> embraced in the community.  Why is that?
>
> Michael
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

--
Kent
---
http://www.datanoise.com

Perhaps, but I''m not really advocating doing anything more than:

% for list in @lists
<tr>list.name</tr>
% end

To me that''s six characters with shift keys that I don''t have
to type. :)

Michael