PQ - M Code to strip almost all non-alphanumeric characters from a column

[sandy666]

(question from the web)

In PQ in a column named Thru, I'd like to delete all non-alphanumeric characters with the exception of + and -. Anyone know M code step(s) to accomplish this following a step called #"Promoted Headers"?

    Text = Table.TransformColumnTypes(#"Promoted Headers",{{"Thru", type text}}),
    TS = Table.AddColumn(Text, "Custom", each Text.Select([Thru],{"A".."Z","a".."z","0".."9","+","-"})),
    RC = Table.RemoveColumns(TS,{"Thru"}),
    Rename = Table.RenameColumns(RC,{{"Custom", "Thru"}})

https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA
https://www.youtube.com/watch?v=jTmVtPHtiTg&lc=Ugy_RiNN_kAqUvZ8W994AaABAg
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https://www.youtube.com/watch?v=0ltJS7uHfK4&lc=UgxYnpd9leriPmc8rPd4AaABAg. 9gdrYDocLIm9xI-2ZpVF-q
https://www.youtube.com/watch?v=0ltJS7uHfK4&lc=UgyjoPLjNeIAOMVH_u94AaABAg. 9id_Q3FO8Lp9xHyeYSuv1I
https://www.reddit.com/r/windowsxp/comments/pexq9q/comment/k81ybvj/?utm_source=reddit&utm_medium=web2x&context=3
https://www.youtube.com/watch?v=bs-urI_o8jo&lc=UgxYgiEZuS9I3xkjJv54AaABAg
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ttps://www.youtube.com/watch?v=LP9fz2DCMBE
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https://www.youtube.com/watch?v=LP9fz2DCMBE&lc=UgzbPgJUMCztIOQDym14AaABAg. 9wdo_rWgxSH9wdpcYqrvp8
ttps://www.youtube.com/watch?v=bFxnXH4-L1A
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ttps://www.youtube.com/watch?v=GqzeFYWjTxI
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https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA