explain simple example please

[theG]

class MainController < Ramaze::Controller
def index
%q(
<?r @str = "abc" ?>
@str is #{@str}
)
end
end

why does the code in the midle need %q {} around it?
should the body of the function return string/html content? does the
%q mean some sort of directive?

Thanks

[Adam Kittelson]

The %q( ) is an example of a multi line string, manveru replied with this link in your other topic http://www.zenspider.com/Languages/Ruby/QuickRef.html#6 which is a good source of information on that.

It did lead me to wonder about something though. At the link above it says that %q is a multi line string with no interpolation. The example below uses interpolation, and based on the %q my expectation would be that it would fail and just output @str is #{@str} to the browser. My text editor seems to agree because it doesn't syntax highlight the interpolation.

However, when I run this example code the interpolation is parsed and my browser displays @str is abc.

Sorry to hijack your question theG, but can anyone help me understand why the interpolation still works in this example?

-Adam

[Aman Gupta]

Sorry to hijack your question theG, but can anyone help me understand why the interpolation still works in this example?

You're passing the uninterpolated version to Ramaze as a template, and ramaze will use the ezamar templating engine to render that template before sending it to the browser. 

  Aman

[Adam Kittelson]

Gotcha, so it's not being interpolated immediately... and in retrospect if it was the example wouldn't work because @str hasn't been defined until ezamar gets it's hands on it.

Thanks

[James Britt]

Adam Kittelson wrote:
> Gotcha, so it's not being interpolated immediately... and in retrospect if
> it was the example wouldn't work because @str hasn't been defined until
> ezamar gets it's hands on it.

An interesting twist here is that you *could* use an interpolated string
as a means to dynamically create the string that would be interpolated
by the Ezamar engine.

--
James Britt

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