haml problem with hashes and string interpolation

[jevado]

Hello,

When I do something like the following, I'm getting a syntax error

%div{:class => "test"}= "#{something}somestring"

There's a workaround:

%div{:class => "test"}
= "#{something}somestring"

This works correctly.

Just wanted to let you know.

Kind regards,
Jeroen van Doorn

[Nathan Weizenbaum]

This is a known bug. It's due to a weakness in Ruby regular expressions
- they're unable to deal with nested characters, like brackets or
parentheses. We had to either break

%div{:class => "test"}= "#{something}somestring"

or

%div{:class => "#{something}somestring"}= "test"

And we chose the former, because we wanted people to be able to embed
stuff in attribute strings easily.

Thanks, though.
- Nathan

[Spongy]

Hopefully this kind of issue might go away with Ruby 1.9 which uses a
more featured regular expression engine

[Nathan Weizenbaum]

I believe the Ruby 2.0 Regexp engine has constructs that are
specifically designed to deal with nested characters, which should make
this issue disappear.

- Nathan