|h?

[JDoubleU00]

This is the code from TradeChannelCleaner, I've posted my question there, but the author has not responded so I thought I would ask here.

What does the |H do? Look for hyperlinks? I was trying to find documentation, but my GoogleFu is weak, any pointers there would be appreciated also.

ChatFrame_AddMessageEventFilter("CHAT_MSG_CHANNEL", function(_, _, message, _, _, _, _, _, _, _, channel)
    if channel == "Trade - City" and not message:find("|H") then
        return true
    end
end)