[eschwartz]

First:: I *thought* calibre would turn hard line breaks into <br>'s, but now I am not so sure...


Anyway. So I entered this into the comments column in an empty book (test library ):

<p>I think your regex is fine...
<br><br>
calibre reformats the comments, putting them into a final div IIRC, and if you have multi-paragraph comments those need to be divided up somehow.
<br><br>
:bulb2: Paragraph == anytime there is a line-break.
<br><br>
In HTML mode line-breaks are collapsed into whitespace and paragraphs respect the &lt;p&gt; tags, but after nuking the tags if you have line-breaks calibre will do it's best to recreate a basic structure, and probably inserted hard line-breaks where it thought (:rolleyes:) you wanted them.</p>

Entered Bulk S&R
Search:

<br>

Replace: one standard space

Result:

<p>I think your regex is fine...
  
calibre reformats the comments, putting them into a final div IIRC, and if you have multi-paragraph comments those need to be divided up somehow.
  
:bulb2: Paragraph == anytime there is a line-break.
  
In HTML mode line-breaks are collapsed into whitespace and paragraphs respect the &lt;p&gt; tags, but after nuking the tags if you have line-breaks calibre will do it's best to recreate a basic structure, and probably inserted hard line-breaks where it thought (:rolleyes:) you wanted them.</p>

No <br>'s in sight.