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How can we find if a string should not start or end with special characters

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For eg. "Name" is valid; "1Name" is invalid; "Name?" is invalid. 
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Hello yasin, in order to flag strings that start or end with a special character, we need to use a combination of the If statement and a regular expression.

if(regexp( @Name@   ,“.*[/[^A-Za-z]].*“, “true”) = “true”, “invalid”, “valid”)
this regular expression should help you do that.
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