Some text matching questions

[Guest]

Yes, the separate lines help.
But there is still some confusion:

After re-reading Kye-U's explanation of the purpose of "PrxNeverMatch" I sort of see what it's used for, but don't understand how it functions specifically. PrxNeverMatch is not mentioned in the Prox help file and a google search only nets 7 results, none of them explanations. Does it simply make sure that the characters "<" and ">" are excluded when the non-digits/letters are matched later? Does it always follow whatever is not to be matched? And since it follows the entire parenthetical expression, why aren't the $SETs negated?

Why is (s|) necessary? Why not match (pink|pinks) ?

Actually, I don't understand why the "|" after PrxNeverMatch is necessary either. An "or" would seem to match one but not the other.