Multiple spaces in a regular expression can make it hard to tell how many spaces should be matched. It’s more readable to use only one space and
then indicate with a quantifier how many spaces are expected.
Noncompliant code example
"/Hello, world!/"
Compliant solution
"/Hello, {3}world!/"
Exceptions
If the extended modifier is set, whitespaces are ignored. In this case no issue should be triggered, because the whitespaces may be intended to
improve readability.
