From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2011-03-01T09:05:30+09:00
Subject: Re: erb example from comp.lang.ruby fails

On Feb 28, 2:38 pm, Sean O'Halpin <sean.ohal...@gmail.com> wrote:
> On Mon, Feb 28, 2011 at 7:00 PM, RichardOnRails
>
>
>
> <RichardDummyMailbox58...@uscomputergurus.com> wrote:
> > I copied code fromhttp://www.ruby-doc.org/stdlib-1.8.6/(erb package
> > in Table of Contents, ERB in Classes column.
>
> > I edited it only slightly in SciTE and pasted it inhttp://www.pastie.org/1617782
>
> > Running the code from within SciTE 1.74 gave me the error message:
> > (erb):16: undefined local variable or method `priority' for
> > main:Object (NameError)
> >        from K:/_Utilities/ruby186-26_rc2/ruby/lib/ruby/1.8/erb.rb:741:in
> > `value'
> >        from K:/_Utilities/ruby186-26_rc2/ruby/lib/ruby/1.8/erb.rb:741:in
> > `result'
> >        from erb1.rb:43
>
> > I'm running ruby 1.8.6 under WinXP-Pro/SP3
>
> > If there's a easily recognized fix,  I'd like to apply it to this
> > example.  Meanwhile,  I'll try other examples that might both work and
> > suggest a hint at why this example fails.
>
> > Thanks in Advance,
> > Richard
>
> That ".gsub(/^  /, '')" at the end of the template is the clue. It
> deletes the first two spaces at the beginning of each line.
> The '%' modifier works only at the very beginning of each line. If you
> change either the indent of the template to two spaces
> or change the gsub to replace the same number of spaces you've
> indented by, the example will work.
>
> Regards,
> Sean

Hi Sean (namesake of my 6-yo grandson),

Great job.  I posted the corrected version, including appended output,
at http://www.pastie.org/1618793.

I recognized how the gsub would affect the earlier code, but saw no
purpose for it ... because I never heard about a % sign in the first
column producing some special effect. Do you know where that's
documented online?
The Pastie proves that the code produces excellent output.

Many thanks,
Richard