How can I use a multiline value for an HTML tag attribute? (i.e. how do I escape newline?)

Question

How do I include a newline in an HTML tag attribute?

For example:

<a href="somepage.html" onclick="javascript: foo('This is a multiline string. This is the part after the newline.')">some link</a> 

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Edit: Sorry, bad example, what if the tag happened to not be in javascript, say:

<sometag someattr="This is a multiline string. This is the part after the newline." /> 

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Edit 2: Turns out the newline in the string wasn't my problem, it was the javascript function I was calling. FWIW, "
" can be used for newline in an HTML attribute.

Answer 1

From what I remember about the HTML standard, character entities work in attributes, so this might work:

<sometag someattr="This is a multiline string.&#10;This is the part after the newline." /> 

I'm not sure if the "newline" you want ought to be 
 (\n) or 
 (\r\n), and I'm not sure if browsers will interpret it the way you want.

Why do you need it? What specific problem are you trying to solve by adding a newline in an HTML tag attribute?

Answer 2

To include a multiline value, just continue the text of the html attribute on the next line in your editor e.g.

<input type="submit" value="hallo hallo">  

will put the second hallo under the first