Space preceding DOI is linked when prefixed by CSL

[adunning]

Using pandoc-citeproc 0.7.3 and pandoc 1.15.0.6, a space preceding the linked DOI is linked when it is prefixed by the CSL, as with MHRA:

pandoc --csl=modern-humanities-research-association.csl -F pandoc-citeproc << EOT
> ---
> references:
> - id: test
>   DOI: 10.1484/J.RB.5.100519
> ...
> 
> @test
> 
> EOT

Result:

<p><span class="citation"><a href="#fn1" class="footnoteRef" id="fnref1"><sup>1</sup></a></span></p>
<div class="references">
<div id="ref-test">
<p><a href="http://doi.org/10.1484/J.RB.5.100519"> &lt;http://dx.doi.org/10.1484/J.RB.5.100519&gt;</a></p>
</div>
</div>
<div class="footnotes">
<hr />
<ol>
<li id="fn1"><p><a href="http://doi.org/10.1484/J.RB.5.100519"> &lt;http://dx.doi.org/10.1484/J.RB.5.100519&gt;</a>. <a href="#fnref1">↩</a></p></li>
</ol>
</div>

[adunning]

(This results, of course, from #107; sorry for not pointing this out earlier.)

[jgm]

This is because the style has

            <text variable="URL" prefix=" &lt;" suffix="&gt;"/>

What fix do you propose? I suppose we could strip off leading spaces from the prefix and trailing spaces from the suffix, and put those outside the link.

For reference, here's a link to the relevant code:
d952693

[adunning]

Exactly (technically line 405 is what we're looking at). It's not considered good style in CSL, but it happens frequently in practice.

Excluding the space from the link seems safe. Here, it would probably be better if < and > were not linked either, but that might be making things too complex.

[jgm]

So maybe it would be best, instead of linking the prefix and suffix, just to check the prefix. If it ends with a string beginning http:, then the ending part is stripped off and added to the URL, which is linked. The rest of the prefix and suffix are not linked.

[adunning]

Yes, that does sound more ideal. This would also return the old behaviour of not linking the prefixed doi: in Chicago, which personally I found more aesthetically pleasing.

[adunning]

That's even more clever. Thank you!