What dose @ mean in Regex?

May I ask about @?
I didn’t find @ in Regex reference books, dose it xbench only?

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Source : Regular Expression
“((#|%|&|‘|*|-|/|@|[|]|_|{|}|¡|«|-|·|»|¿)$)=1”
Target : Regular Expression
-“@1$”

I find my answer here :
[Check ISIN Codes RegEx - Technical Support - ApSIC Xbench Forum]

:slight_smile:

As far as i know the whole expression in the source is set to “=1” and in target you can search for exactly that by using @1 or searching if it does not exist in target by using -“@1”.

1 Like

That’s right!
Thank you Burim :slight_smile: