Represent tag in regular expression verification

Admittedly, I haven't looked deeply into this myself (yet). Thought I would ask here first to see if anyone can help.

I write a bunch of regular expression rules for QA Checker verification that check against various critieria, some of which involve spacing. I would like to check for an improper space before a period. However, sometimes a tag or tag group representing a link, for example, comes right before a period. For example:

Source:  Wie diese konfiguriert werden müssen, wird im Abschnitt <tag> erklärt.

Target: How these must be configured is explained in section <tag>.

I would love to be able to use the following simple RegEx:

\s\.$

The problem is the RegEx engine ignores the tag and simply treats like this:

...explained in section .

This of course triggers my rule and gives me a false positive. I therefore have to make a bunch of exceptions for the words that come right before the tag. (I hope I'm explaining this clearly).

Is there any way to represent a tag (all tags / any tags) in the "Regular expressions" section of the Verification / QA Checker 3.0?