Handle invalid regex pattern in ExprJoinSplit #7202
Merged
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Description
This PR fixes a bug where an exception was thrown when compiling an invalid regex pattern. It also adds an error when an invalid regex pattern with a literal string. As well as optimizing splitting with a literal pattern by compiling and caching the pattern at initiation rather than with every evaluation.
Target Minecraft Versions: any
Requirements: none
Related Issues: #7159