Rails + Haml: How to unescape tag parameter?

I'm trying to accomplish the following content in source code:

<div id="box<%=id%>"></div>

Without escaping any signs in Haml.

%div{ :id => "box_<%=id%>" }

produces

<div id='box_&lt;%=id%&gt;'></div>

Right now the only way I can do th开发者_如何学JAVAis with Haml is to use :plain filter and hardcode HTML without using any View Helpers. How can I fix that?

I need this because I'm forced to follow this convention because of third-party syntax convention: JavaScript Micro-Templating

Reference:

Haml reference

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You say you're coding in Haml, but the brackets indicate Erb.

• Step 1. Try normal Ruby interpolation:

  %div{ :id => "box_#{id}" }
  

• Step 2. There is no step 2.

Update: When I wrote this answer, I had not used a JS templating framework before. My apologies for not grokking why this was necessary.

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Basically, just don't use HAML for that one statement. For example, assuming you are doing something like this in HAML right now:

%script#template(type="text/html")
    %div{ :id => "box_<%=id%>" }

Instead, do:

%script#template(type="text/html")
    <div id="box_<%=id%>"></div>

It will interpret the script tag as HAML correctly, then since you aren't using any %, #, etc. to start the next line it will interpret that line as plain text and pass it through. Seems to work fine for me and I have a very similar case to yours. The one thing I did do was change the jQote (the templating engine I'm using for my Javascript templating) tag from % to $ with this Javascript statement in the head of the page:

%script( type="text/javascript")
    $(function() { $.jqotetag( '$' ); });

That way the % signs don't confuse the Ruby interpreter. So the final example would be:

%script#template(type="text/html")
    <div id="box_<$=id$>"></div>

Good luck!

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http://haml.info/docs/yardoc/file.REFERENCE.html#unescaping_html

! %div(id="box_<%= data.id %>")