Validate Name
RegExp to validate the input of a person's name.
/**
* CAUTION: Don't test on large inputs. Apply it to inputs filtered by length limit.
*
* Can be used to test firstName/lastName/fullName
*
* Grammar Rules:
* - Should start with a alphabet
* - In middle,
* - can contain any number of alphabets,
* - or a `'`(quote) or ` `(space) followed by one or more alphabets,
* - or `.`(dot) followed by a ` `(space) and one or more alphabets
* - Should end with a alphabet, or a `.`(dot).
*
* Allowed Examples:
* - A
* - A B
* - A B C (so on)
* - A.
* - A. B.
* - A. B. C. (so on)
* - Edyth O'Keefe
* - Mr. David
* - Robert Downey Jr.
*
*/
export const NAME_REG_EXP = new RegExp(
/^[a-zA-Z]+(([' ][a-zA-Z])?([.][ ][a-zA-Z])?[a-zA-Z]*)*[.]?$/
);