Strangely enough, I came across a bug today caused by a misuse of ev in a
share file. (I swear -- I wasn't seeking this out!) In this case, the
semantics of ev were very clear, but not appropriate -- in fact, ev is
almost never appropriate in expression-manipulating code....
Bug report [1721027] trigrat(sin('x)) captures
x<https://sourceforge.net/tracker/index.php?func=detail&aid=1721027&group_id=4933&atid=104933>;
Fixed in CVS.
-s