Non-validated regex causes `PatternSyntaxException`

[Emirlol]

Have you read the compatibility information above?

• Yes, I have read and understand the compatibility note.

Mod Loader

Fabric

Game Version

1.21.9-1.21.10

Mod Version

2.4.21+edge

Environment Type

Multiplayer (Client)

Provide Your Logs

https://mclo.gs/roFXAvY

Describe Your Issue

Invalid regex in the mention keywords config causes PatternSyntaxException.

Sounds/src/main/java/dev/imb11/sounds/mixin/ui/MentionSoundEffect.java

Line 55 in db87c54

boolean isMention = messageString.matches(regex.toString());

According to the oracle docs, the matches method simply creates a Pattern with the given string and tries to match.

Note: I wasn't the one who encountered the issue, it was someone in fabric discord, I'm only reporting out of courtesy since I identified the problem. I'm not sure if the input for mentionKeywords in the config is validated/escaped elsewhere, I'm just going off the error.

Steps to Reproduce

• Add invalid regex into mention keywords
• Receive a message
• Bug occurs