take a look at screenshot-1 below

take a look at string:

& & ' ' ' ' '"

Add a space character after '&' and remove it.
Than take a look how vpe render this string:

& & ' ' ' ' '

i.e. in some case vpe displays ' instead of expected '

Related bugzilla bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=357677