正则表达式，允许字母和仅出现一次选择的特殊字符

Question

I need regex for name field. Name can only be alphabets. The other requirements for the name field are that it can contain but it is not necessary to have, any one of these characters: an apostrophe (') or a pound (#) or a hyphen (-) I have this so far

 [\\w]*[\'#-]?

This checks the special character but only at the end of the string. For example

JohnO'Connell -> returns false -> should return true

JohnOConnell' -> returns true -> expected behavior
JohnOConnell# -> returns true -> expected behavior
JohnOConnell- -> returns true -> expected behavior
JohnOConnell-# -> returns false -> expected behavior

How does this have to be updated to ?

Thanks

Answer 1

You are almost there:

^[a-zA-Z]+['#-]?[a-zA-Z]*$

Just making the ' , # , - is optional at the middle.

Answer 2

这个允许任何unicode字母：

^\pL+['#-]?\pL+$