Function using regexp_replace to return values

I have a function that does an ASCII check and it cleans a string and returns all the ascii characters back. I have symbols(?) that are being returned now that have an ascii value but I definitely dont want them back. I guess I just want A-z 0-9 and then anything that may come in with a company name like ampersands, commas, dashes, etc....I looked at the character class POSIX values but not sure which one to use?
jknj72Asked:
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sdstuberCommented:
regexp_replace(your_string,'[^a-zA-Z0-9&,-]')

add characters you want to keep inside the brackets but after the "^" character.

if you want dashes kept, then put them as the last character in the list to make sure they aren't interpreted as part of a range like 0-9
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jknj72Author Commented:
perfect thanks
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jknj72Author Commented:
Thanks for your help
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jknj72Author Commented:
what about the space character?
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jknj72Author Commented:
oh I got it thanks
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