On Tuesday, October 14, 2014 9:36:58 PM UTC-4, Pontus Stenetorp wrote: > julia> ∀foo = [17, 4711] > ERROR: syntax: invalid character "∀" >
Julia only allows a subset of unicode math characters (category Sm) in identifiers. ∀ hasn't been added to the whitelist yet. One reason why we have a whitelist is that we need to decide for each math symbol whether we want to parse it as part of an identifier or as an operator (and infix or prefix, and with what precedence). It wasn't completely clear to me whether we wanted ∀ to be an identifier or a prefix operator, so I punted on it when I last updated the identifier list.
