// delimiters; it returns false otherwise.
func (tok Token) IsOperator() bool {
	return (operator_beg < tok && tok < operator_end) || tok == TILDE
}

// IsKeyword returns true for tokens corresponding to keywords;
// it returns false otherwise.
func (tok Token) IsKeyword() bool { return keyword_beg < tok && tok < keyword_end }

// IsExported reports whether name starts with an upper-case letter.
func IsExported(name string) bool {

	special = iota
	literal
	operator
	keyword
)

func tokenclass(tok token.Token) int {
	switch {
	case tok.IsLiteral():
		return literal
	case tok.IsOperator():
		return operator
	case tok.IsKeyword():
		return keyword
	}
	return special
}

type elt struct {
	tok   token.Token
	lit   string
	class int
}

var tokens = []elt{
	// Special tokens

	// (it is token.ILLEGAL), so don't print it.
	if p.trace && p.pos.IsValid() {
		s := p.tok.String()
		switch {
		case p.tok.IsLiteral():
			p.printTrace(s, p.lit)
		case p.tok.IsOperator(), p.tok.IsKeyword():
			p.printTrace("\"" + s + "\"")
		default:
			p.printTrace(s)
		}
	}

	p.pos, p.tok, p.lit = p.scanner.Scan()
}

// Consume a comment and return it and the line on which it ends.

	// (it is token.ILLEGAL), so don't print it.
	if p.trace && p.pos.IsValid() {
		s := p.tok.String()
		switch {
		case p.tok.IsLiteral():
			p.printTrace(s, p.lit)
		case p.tok.IsOperator(), p.tok.IsKeyword():
			p.printTrace("\"" + s + "\"")
		default:
			p.printTrace(s)
		}
	}

	for {
		p.pos, p.tok, p.lit = p.scanner.Scan()
		if p.tok == token.COMMENT {

	used := make(map[string]bool)
	for _, f := range dt.Field {
		ident[f.Name] = f.Name
		used[f.Name] = true
	}

	if !*godefs {
		for cid, goid := range ident {
			if token.Lookup(goid).IsKeyword() {
				// Avoid keyword
				goid = "_" + goid

				// Also avoid existing fields
				for _, exist := used[goid]; exist; _, exist = used[goid] {
					goid = "_" + goid
				}

		{"(*FileSet).RemoveFile", Method, 20},
		{"(*FileSet).Write", Method, 0},
		{"(*Position).IsValid", Method, 0},
		{"(Pos).IsValid", Method, 0},
		{"(Position).String", Method, 0},
		{"(Token).IsKeyword", Method, 0},
		{"(Token).IsLiteral", Method, 0},
		{"(Token).IsOperator", Method, 0},
		{"(Token).Precedence", Method, 0},
		{"(Token).String", Method, 0},
		{"ADD", Const, 0},
		{"ADD_ASSIGN", Const, 0},

pkg go/constant, func Make(interface{}) Value
pkg go/constant, func Val(Value) interface{}
pkg go/token, func IsExported(string) bool
pkg go/token, func IsIdentifier(string) bool
pkg go/token, func IsKeyword(string) bool
pkg go/types, func CheckExpr(*token.FileSet, *Package, token.Pos, ast.Expr, *Info) error
pkg log, func Writer() io.Writer
pkg log/syslog (netbsd-arm64-cgo), const LOG_ALERT = 1

pkg go/token, method (*Position) IsValid() bool
pkg go/token, method (Pos) IsValid() bool
pkg go/token, method (Position) String() string
pkg go/token, method (Token) IsKeyword() bool
pkg go/token, method (Token) IsLiteral() bool
pkg go/token, method (Token) IsOperator() bool
pkg go/token, method (Token) Precedence() int
pkg go/token, method (Token) String() string