[antlr-interest] Question about Antlr grammar

[Federico Di Gregorio]

Out of curiosity, can someone explain why in Antlr some "keywords" have
a leading @ and some haven't? Why @begin but not @scope?

Thanks,
federico

-- 
Federico Di Gregorio                         http://people.initd.org/fog
Debian GNU/Linux Developer                                fog at debian.org
INIT.D Developer                                           fog at initd.org
 If we are going to teach "creation science" as an alternative to
  evolution, then we should also teach the stork theory as an
  alternative to biological reproduction.                -- Judith Hayes