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[Host.MQTT] Add support for mqtt wildcard ( # and + symbols ) #397

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Add mqtt wildcard support for # and + symbols

MQTT subscribe should work using supported wildcards:

wiki

MQTT Wildcard – Multi Level: #
The multi-level wildcard covers multiple topic levels. It is represented by the hash symbol (#) and must be placed as the last character in the topic, preceded by a forward slash.

MQTT Wildcard – Single Level: +
The single-level wildcard is represented by the plus symbol (+) and allows the replacement of a single topic level. By subscribing to a topic with a single-level wildcard, any topic that contains an arbitrary string in place of the wildcard will be matched.

@zarusz zarusz added this to the 3.2.0 milestone Apr 23, 2025
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zarusz commented Apr 23, 2025

Hi @VandenboschVincent, thank you for your effort and contribution — much appreciated!

As a quick reminder, please make sure to include the Signed-off-by: line in your commits, as outlined in the contributing guidelines.

Feel free to let me know once the changes are ready for review. Thanks again!

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