I want to block all character that has possible script such as #$%^&*<>~\[]{}@.,?|/
I cannot use ^[a-zA-Z]([\w -]*[a-zA-Z])?$/i.test(value) because at my application I have spanish lang support which includes alphabets like ę Æ and so on....
Now how can i achieve this forming a Regex? Can anyone help me here? New to RegEx
I want to block special character specified above. characters which can potential form a script. For restriction of user input purpose
/^[a-zA-Z]([\w -]*[a-zA-Z])?$/i regex only matches ASCII characters.
If you plan to make it work with Spanish language, you need to make it Unicode aware.
Bearing in mind that a Unicode aware \w can be represented with [\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}] (see What's the correct regex range for javascript's regexes to match all the non word characters in any script?) and the Unicode letter pattern is \p{L}, the direct Unicode equivalent of your pattern is
/^\p{L}(?:[\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}\s-]*\p{L})?$/iu.test(value)
I also replaced the regular space with \s to match any kind of Unicode whitespace.
Details
^ - start of string\p{L} - any Unicode letter(?:[\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}\s-]*\p{L})? - an optional occurrence of any 0 or more Unicode word chars (letter, diacritic, number, connector punctuation (like _), join control chars), whitespace or hyphens followed with a single Unicode letter$ - end of string.