> And when we want to adjust our lexer to admit other haracter types, such as Unicode identifiers Actually regex libraries such as PCRE have a good unicode sup

> And when we want to adjust our lexer to admit other haracter types, such as Unicode identifiers Actually regex libraries such as PCRE have a good unicode support and are better than me when it comes to do things like matching character properties (letters, uppercase letters, numbers, punctuation, etc).