Replace or remove anything that's not a letter A-Z or digit 0-9.
Case:
UPPER
lower
What to do with the extra characters:
Remove
Replace with:
Space
Underscore
Hyphen
Period
Colon
Slash
Octothorpe
Question mark
Collapse multiple spaces/symbols into a single one
Replace/remove extra symbols only
within
words, keeping other whitespace
Preprocessing:
None
Normalize (NFKD)
ASCIIize (partial support)
only works with javascript on
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