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

perreal's first regex is correct. However, the second regex given in that answer subtly fails in one condition. Since it captures characters both before and after, two >s separated by a single character will not both be found.

Here is a regex which only uses forward lookaheads and doesn't have that problem:

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

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