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

Answer 1

Perl syntax:

/(?)>(?!>)/

Without using lookahead or lookbehind:

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