Input text: How do I combine multiple currency symbols using patterns

I have created this pattern for £ but I would love to know how to add euros and dollars etc within this pattern.

pattern="^\£\d{1,3}(.\d{3})*(.\d+)?$"

Answered my own question

pattern="^[£$€]\d{1,3}(.\d{3})*(.\d+)?$" data-type=“currency”