package ssh_config

import 

type token struct {
	Position
	typ tokenType
	val string
}

func ( token) () string {
	switch .typ {
	case tokenEOF:
		return "EOF"
	}
	return fmt.Sprintf("%q", .val)
}

type tokenType int

const (
	eof = -(iota + 1)
)

const (
	tokenError tokenType = iota
	tokenEOF
	tokenEmptyLine
	tokenComment
	tokenKey
	tokenEquals
	tokenString
)

func ( rune) bool {
	return  == ' ' ||  == '\t'
}

func ( rune) bool {
	return !(isSpace() ||  == '\r' ||  == '\n' ||  == eof)
}
I'm not sure that this is correct
Keys start with the first character that isn't whitespace or [ and end with the last non-whitespace character before the equals sign. Keys cannot contain a # character."
	return !( == '\r' ||  == '\n' ||  == eof ||  == '=')