I want to convert a string to uppercase that may or may not be a $LIST so that I can do a case insensitve search. However, when looking at what constitutes a $LIST I can see something that looks like it follows these rules:
Example: S X=$LISTBUILD("hello","world!") gives X=$C(7,1)_"hello"_$C(8,1)_"world!"
The 1st character is $C( how many characters to the start of the next piece)
The 2nd is probably something to do with nested $LISTs
Then you have your raw "hello" followed by $C(8) which is the distance to the end of the next piece
This means that if I have a long string in one of my pieces of

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