On Thu, 6 Jan 2011, Joel E. Denny wrote: > On Thu, 6 Jan 2011, Alex Rozenman wrote: > > > Regarding the documentation, I am not sure that we need to document this. It > > looks like a regular bug fix. > > It is a common sense that identifiers can not start from numbers. > > That doesn't explain why Bison now rejects --33-- as a symbol. Maybe we > should fix that?
Here's what I had in mind: id -|({letter}|-({letter}|-))({letter}|[-0-9])* > > P.S. Or you meant other changes in documentation ? > > The following statement appears in NEWS under 2.5 but is now incorrect: > > grammar symbol names may include dashes in any position, > > A similar statement appears in the manual.