@ElMiko A long time ago I created a
throw-away Sigil regex tester validation plugin that should theoretically work for your regex.
After the installation you'll find the plugin under Plugins > Validation > RegexTester. (You'll need to select the "regex" engine.)
In my test case:
Code:
<p>Lorem “ipsum dolor” Jack said. “</p>
<p>Lorem ipsum dolor said. “</p>
<p>Dolor amet said. “</p>
it only selected the second and third paragraphs when I searched for:
Code:
(?<!”\s\w+\s)said\. “
For more information on the alternative
regex Python module see the
official documentation.