regex - Regular Expression to match only one angle bracket

Question

I'm looking for a regular expression that matches the '>' in

a > b
>
b>
...

but not two or more angled brackets, i.e. it should not match

a>>b
>>
b>>
...

I was sure to do that with lookaheads or lookbehinds, but for some reason neither

>(?!>)

nor

(?<!>)>

work..?

Thanks!

Answer 1

Perl syntax:

/(?<!>)>(?!>)/

Without using lookahead or lookbehind:

/(?:^|[^>])>(?:[^>]|$)/