Commits on May 16, 2018

1. Fix grammar documentation wrt Unicode identifiers …

   The grammar defines identifiers in terms of XID_start and XID_continue,
   but this is referring to the unstable non_ascii_idents feature.
   The documentation implies that non_ascii_idents is forthcoming, but this
   is left over from pre-1.0 documentation; in reality, non_ascii_idents
   has been without even an RFC for several years now, and will not be
   stabilized anytime soon. Furthermore, according to the tracking issue at
   rust-lang#28979 , it's highly
   questionable whether or not this feature will use XID_start or
   XID_continue even when or if non_ascii_idents is stabilized.
   This commit fixes this by respecifying identifiers as the usual
   [a-zA-Z_][a-zA-Z0-9_]*

   

   bstrie committed May 16, 2018
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