Parser: Conditional boolean attribute attribute

[dvodvo]

The following

<details <% if @doc.registration_id.present? %>open<% end %>>

generates the following error:

<div class="herb-error-message">
   `&lt;% if %&gt;` started here but never closed with an end tag. The end tag may be in a different
</div>

referencing the opening <% tag.

The only way around the generation of this error is much longer & repetitive:

<% if @doc.registration_id.present? %>
  <details open>
   [...]
<% else %>
  <details open>
  [...]
<% end %>

[marcoroth]

Hey @dvodvo, thanks for reporting!

Can you try adding whitespaces around the open:

<details <% if @doc.registration_id.present? %> open <% end %>>

It's currently a limitation, but I have a pull request open to address this: #873

Related: #872

[dvodvo]

So I toyed around.
>open < does not generate error
> open < does not generate error
>open< generates error

More complex case is surprising:

<details <% if smt.present? %> open <% end %> <% if smt.present? %>style='background-color: rgba(252, 231, 2, 0.25);'<% end %> >
<details <% if cover_deltaprices.present? %>open<% end %><% if cover_deltaprices.present? %>style='background-color: rgba(252, 231, 2, 0.25);'<% end %>>

both do not generate an error.

If I am not mistaken, this was introduced after 0.7.5. I recently upgraded to 0.8.7 and these new errors popped up.

[dvodvo]

found something in the same vein...
link_to( herb complains
link_to ( herb is satisfied