ClauseMem
I think its helpful to have an expression member trait for syntax that is not expressions. So I don't think it would be helpful if say an opening brace was an expression. All Expressions are Expression members.
trait ClauseMemExpr
trait CompoundClauseMemExpr
class AlphaBracketExpr
trait ExprSeqNonEmpty
trait BlockStatements
class BracketedStatements
class FileStatements
class StringStatements
class ClausesExpr
class PreOpExpr
class SpacedExpr
class UnimplementedExpr
trait Expr1
trait Expr0
trait ExprSeq
trait EmptyExprToken
class CommaToken
class SemicolonToken
class UnderscoreToken
trait ExprToken
class CharToken
class HashAlphaToken
trait IdentifierToken
trait IdentLowerToken
class IdentLowerHexaToken
class IdentLowerOnlyToken
class IdentUnderToken
trait IdentUpperToken
trait IdentUpperBase32Token
class IdentUpperHexaToken
class IdentUpperOnlyToken
trait NatToken
class Nat0yToken
trait NatBase32Token
class Nat0tToken
trait NatRawToken
trait DigitsRawToken
trait IntDeciToken
class IntNegToken
class NatDeciToken
class Nat32OnlyToken
trait NatRawHexaToken
trait IdentHexaToken
class RawHexaToken
trait NatHexaToken
class Nat0xToken
class StringToken
trait ClauseMemToken
class Dot2Token
class Dot3Token
class DotToken
class OperatorToken