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Right now my regex is something like this:
[a-zA-Z0-9] but it does not include accented characters like I would want to. I would also like - ' , to be included.
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Special Regex Characters: These characters have special meaning in regex (to be discussed below): . , + , * , ? , ^ , $ , ( , ) , [ , ] , { , } , | , \ . Escape Sequences (\char): To match a character having special meaning in regex, you need to use a escape sequence prefix with a backslash ( \ ).
Basically (0+1)* mathes any sequence of ones and zeroes. So, in your example (0+1)*1(0+1)* should match any sequence that has 1. It would not match 000 , but it would match 010 , 1 , 111 etc. (0+1) means 0 OR 1.
It means that it is not capturing group.
Accented Characters: DIY Character Range Subtraction
If your regex engine allows it (and many will), this will work:
(?i)^(?:(?![×Þß÷þø])[-'0-9a-zÀ-ÿ])+$ Please see the demo (you can add characters to test).
Explanation
(?i) sets case-insensitive mode^ anchor asserts that we are at the beginning of the string(?:(?![×Þß÷þø])[-'0-9a-zÀ-ÿ]) matches one character...(?![×Þß÷þø]) asserts that the char is not one of those in the brackets[-'0-9a-zÀ-ÿ] allows dash, apostrophe, digits, letters, and chars in a wide accented range, from which we need to subtract+ matches that one or more times$ anchor asserts that we are at the end of the stringReference
Extended ASCII Table
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