Because you use /x unescaped whitespace is ignored. Including the space between \d\d\d\d \d\d.

I'm not the biggest fan of /x, for this reason. It's so easy to miss a space that needs to be escaped.

In reply to Re: Unexpected behaviour of /x Regexp modifier? by JavaFan
in thread Unexpected behaviour of /x Regexp modifier? by jvector

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