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Whitespace Bug in Erb Comments in Rails 2.2.2

#1580

Hi,

There seems to be a bug in Erb comments when there are white spaces between the <% and # of the Erb tag. I've noticed this in Rails 2.2.2. This has worked in Rails 2.1.0 and older.

<%# This is comment causes no problems %>

<% # This comment will exclude content up to the next Erb tag %> This text will be removed<%= "but this will be rendered" %> from the output.

In the above example the following is returned to the browser:

but this will be rendered from the output.

Comments such as these were working up until Rails 2.1.0.

Thanks,

Indika

Reported by ijayasin · December 15th, 2008 @ 09:04 PM

State: wontfix
Milestone: 2.x
Assigned to: nobody
Importance: Low

Activity

  1. josh
    josh
    • State changed from new to wontfix

    It could be an ERB bug which is a ruby core lib.

    We don't really touch anything that ERB does, so I'm not sure how it would brake from 2.1 to 2.2.

    December 15th, 2008 @ 09:09 PM

  2. Jeremy Kemper
    Jeremy Kemper

    A comment with a leading space only worked by accident.

    <%# is the only supported ERB comment tag.

    December 16th, 2008 @ 02:16 AM

  3. ijayasin
    ijayasin

    Jeremy and Joshua,

    Thanks for the responses guys.

    @Jeremy: I realized that too while taking a closer look at the Ruby/Erb documentation. So I ran a couple of quick-and-dirty tests under Ruby 1.8.6 and 1.8.7 and both of them didn't like the whitespaces, so I'm not sure why it worked under Rails <=2.1.0.

    I've already updated my code and removed whitespaces. Hopefully this lil' thread will help others experiencing the same issue. :)

    Thanks,

    Indika

    December 16th, 2008 @ 08:00 PM

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