Ruby interpolation is a property of filters in general, not just the
:plain filter. As such, it's mentioned in the section on filters.
Csiszár Attila wrote:
> Nice. But documentation is a little bit confusing.
> Quote from docs:
> "plain
> Does not parse the filtered text. This is useful for large blocks of
> text without HTML tags, when you don‘t want lines starting with . or -
> to be parsed."
>
> Anyway, this post will be useful if someone has troubles.
>
>
>
> On okt. 9, 10:44, "Nathan Weizenbaum" <[EMAIL PROTECTED]> wrote:
>
>> This is a feature. You can interpolate Ruby code into filters using #{}.
>> You've already found the way to include #{} literally.
>>
>> On Thu, Oct 9, 2008 at 12:53 AM, Csiszár Attila <[EMAIL PROTECTED]>wrote:
>>
>>
>>
>>
>>> I found an intresting thing, when I want to insert a plain ruby code
>>> in my text. Syntax was ok, but render failed. I made a little test.
>>> Here it is:
>>>
>>> test.haml:
>>> %pre
>>> :plain
>>> "#{line}"
>>>
>>> haml -c test.haml => Syntax Ok
>>> ham test.haml =>
>>> Exception on line 3: undefined local variable or method `line' for
>>> #<Object:0x105a93c>
>>> Use --trace for backtrace.
>>>
>>> With --trace
>>> ham test.haml =>
>>> Exception on line 3: undefined local variable or method `line' for
>>> #<Object:0x105a93c>
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/../lib/haml/
>>> engine.rb:149:in `to_html'
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/../lib/haml/
>>> engine.rb:149:in `instance_eval'
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/../lib/haml/
>>> engine.rb:149:in `to_html'
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/../lib/haml/exec.rb:
>>> 261:in `process_result'
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/../lib/haml/exec.rb:
>>> 23:in `parse!'
>>> /usr/local/lib/ruby/gems/1.8/gems/haml-2.0.3/bin/haml:9
>>> /usr/local/bin/haml:19:in `load'
>>> /usr/local/bin/haml:19
>>>
>>> However if I write:
>>> %pre
>>> :plain
>>> "\#{line}"
>>>
>>> Then render is works fine.
>>>
>>> So I think this is a bug, because :plain filter should be ignore to
>>> parse the ruby code.
>>>
> >
>
>
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