Update handling of regex keywords

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 89.13%. Comparing base (d0f686c) to head (a650d4f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #34 +/- ## ========================================== - Coverage 89.16% 89.13% -0.04% ========================================== Files 4 4 Lines 554 552 -2 ========================================== - Hits 494 492 -2 Misses 60 60 ```

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