Prevent widows in titles with javascript

[mxdubois]

by adapting this function:
http://css-tricks.com/snippets/jquery/add-non-breaking-space-on-title-to-prevent-widows/

As is, it removes the links in the ToC h2s, but I bet it can be improved.

[mxdubois]

Ah, this one comes from further down in the comments. It works without problems.

$("h2").html(function(i, text){ 
    return text
        .replace(/\ ([^\s]+)$/,' $1')
        .replace(/\s([^\s]+)\s*$/,' $1')
 })

[mxdubois]

We could do this for paragraphs too, if we wanted to be perfectionists. I don't think the performance impact would be noticeable next to MathJax. We'd have to test it on a long document (many paragraphs) with MathJax disabled to be sure.

[rbeezer]

Nice idea for titles. But it strikes me as overkill for paragraphs.

What if a title has math in it like "A theorem about $x^2 y^2$"? Would the nbsp totally fubar the MathJax application to the product?

[mxdubois]

That's a good point. I bet it would screw that up. With some careful thought, I bet the function could be adapted to avoid that situation.

I get the suspicion David is good with regular expressions. Maybe he could give it a shot?

[rbeezer]

I get the suspicion David is good with regular expressions.

He's the best.

[davidfarmer]

The idea of "put a non-breaking space when the last word is short"
is a good one, but if the title is writen in LaTeX then there are
too many crazy possibilities. For example:

 On a Theorem of Erd\H os

Some people even put hard returns (LaTeX ) in their titles.

If you knew that math was the only exception to handle (so the above
example was converted to unicode), then it wouldn't be too hard to
write a regular expression that handles most cases.

On Sun, 17 Aug 2014, Michael DuBois wrote:

That's a good point. I bet it would screw that up. With some careful thought, I bet the function could be adapted to avoid that situation.

I get the suspicion David is good with regular expressions. Maybe he could give it a shot?

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