lib: Split collections into readable and writable

[nit.git] / src / parser / lexer.nit

# Lexer and its tokens.
# This file was generated by SableCC (http://www.sablecc.org/).
package lexer

import parser_nodes

redef class Token
    readable writable attr _text: String 
    readable attr _filename: String 
    readable attr _line: Int 
    readable attr _pos: Int 
    
    meth parser_index: Int is abstract

    redef meth to_s: String do
        return "'{_text}'"
    end
end

redef class TEol
    redef meth parser_index: Int
    do
        return 0
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TComment
    redef meth parser_index: Int
    do
        return 1
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwpackage
    redef meth parser_index: Int
    do
        return 2
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "package"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwimport
    redef meth parser_index: Int
    do
        return 3
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "import"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwclass
    redef meth parser_index: Int
    do
        return 4
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "class"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwabstract
    redef meth parser_index: Int
    do
        return 5
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "abstract"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwinterface
    redef meth parser_index: Int
    do
        return 6
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "interface"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwuniversal
    redef meth parser_index: Int
    do
        return 7
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "universal"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwspecial
    redef meth parser_index: Int
    do
        return 8
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "special"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwend
    redef meth parser_index: Int
    do
        return 9
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "end"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwmeth
    redef meth parser_index: Int
    do
        return 10
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "meth"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwtype
    redef meth parser_index: Int
    do
        return 11
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "type"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwattr
    redef meth parser_index: Int
    do
        return 12
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "attr"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwinit
    redef meth parser_index: Int
    do
        return 13
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "init"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwredef
    redef meth parser_index: Int
    do
        return 14
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "redef"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwis
    redef meth parser_index: Int
    do
        return 15
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "is"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwdo
    redef meth parser_index: Int
    do
        return 16
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "do"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwreadable
    redef meth parser_index: Int
    do
        return 17
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "readable"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwwritable
    redef meth parser_index: Int
    do
        return 18
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "writable"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwvar
    redef meth parser_index: Int
    do
        return 19
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "var"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwintern
    redef meth parser_index: Int
    do
        return 20
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "intern"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwextern
    redef meth parser_index: Int
    do
        return 21
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "extern"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwprotected
    redef meth parser_index: Int
    do
        return 22
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "protected"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwprivate
    redef meth parser_index: Int
    do
        return 23
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "private"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwintrude
    redef meth parser_index: Int
    do
        return 24
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "intrude"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwif
    redef meth parser_index: Int
    do
        return 25
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "if"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwthen
    redef meth parser_index: Int
    do
        return 26
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "then"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwelse
    redef meth parser_index: Int
    do
        return 27
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "else"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwwhile
    redef meth parser_index: Int
    do
        return 28
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "while"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwfor
    redef meth parser_index: Int
    do
        return 29
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "for"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwin
    redef meth parser_index: Int
    do
        return 30
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "in"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwand
    redef meth parser_index: Int
    do
        return 31
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "and"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwor
    redef meth parser_index: Int
    do
        return 32
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "or"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwnot
    redef meth parser_index: Int
    do
        return 33
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "not"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwreturn
    redef meth parser_index: Int
    do
        return 34
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "return"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwcontinue
    redef meth parser_index: Int
    do
        return 35
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "continue"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwbreak
    redef meth parser_index: Int
    do
        return 36
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "break"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwabort
    redef meth parser_index: Int
    do
        return 37
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "abort"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwassert
    redef meth parser_index: Int
    do
        return 38
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "assert"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwnew
    redef meth parser_index: Int
    do
        return 39
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "new"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwisa
    redef meth parser_index: Int
    do
        return 40
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "isa"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwonce
    redef meth parser_index: Int
    do
        return 41
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "once"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwsuper
    redef meth parser_index: Int
    do
        return 42
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "super"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwself
    redef meth parser_index: Int
    do
        return 43
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "self"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwtrue
    redef meth parser_index: Int
    do
        return 44
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "true"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwfalse
    redef meth parser_index: Int
    do
        return 45
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "false"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwnull
    redef meth parser_index: Int
    do
        return 46
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "null"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwas
    redef meth parser_index: Int
    do
        return 47
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "as"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TKwwith
    redef meth parser_index: Int
    do
        return 48
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "with"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TOpar
    redef meth parser_index: Int
    do
        return 49
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "("
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TCpar
    redef meth parser_index: Int
    do
        return 50
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ")"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TObra
    redef meth parser_index: Int
    do
        return 51
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "["
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TCbra
    redef meth parser_index: Int
    do
        return 52
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "]"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TComma
    redef meth parser_index: Int
    do
        return 53
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ","
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TColumn
    redef meth parser_index: Int
    do
        return 54
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ":"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TQuad
    redef meth parser_index: Int
    do
        return 55
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "::"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TAssign
    redef meth parser_index: Int
    do
        return 56
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TPluseq
    redef meth parser_index: Int
    do
        return 57
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "+="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TMinuseq
    redef meth parser_index: Int
    do
        return 58
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "-="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TDotdotdot
    redef meth parser_index: Int
    do
        return 59
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "..."
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TDotdot
    redef meth parser_index: Int
    do
        return 60
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ".."
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TDot
    redef meth parser_index: Int
    do
        return 61
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "."
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TPlus
    redef meth parser_index: Int
    do
        return 62
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "+"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TMinus
    redef meth parser_index: Int
    do
        return 63
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "-"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TStar
    redef meth parser_index: Int
    do
        return 64
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "*"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TSlash
    redef meth parser_index: Int
    do
        return 65
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "/"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TPercent
    redef meth parser_index: Int
    do
        return 66
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "%"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TEq
    redef meth parser_index: Int
    do
        return 67
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "=="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TNe
    redef meth parser_index: Int
    do
        return 68
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "!="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TLt
    redef meth parser_index: Int
    do
        return 69
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "<"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TLe
    redef meth parser_index: Int
    do
        return 70
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "<="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TGt
    redef meth parser_index: Int
    do
        return 71
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ">"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TGe
    redef meth parser_index: Int
    do
        return 72
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once ">="
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TStarship
    redef meth parser_index: Int
    do
        return 73
    end

    init init_tk(fname: String, line: Int, pos: Int)
    do
        _text = once "<=>"
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TClassid
    redef meth parser_index: Int
    do
        return 74
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TId
    redef meth parser_index: Int
    do
        return 75
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TAttrid
    redef meth parser_index: Int
    do
        return 76
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TNumber
    redef meth parser_index: Int
    do
        return 77
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TFloat
    redef meth parser_index: Int
    do
        return 78
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TChar
    redef meth parser_index: Int
    do
        return 79
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TString
    redef meth parser_index: Int
    do
        return 80
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TStartString
    redef meth parser_index: Int
    do
        return 81
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TMidString
    redef meth parser_index: Int
    do
        return 82
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end

redef class TEndString
    redef meth parser_index: Int
    do
        return 83
    end

    init init_tk(text: String, fname: String, line: Int, pos: Int)
    do
        _text = text
        _filename = fname
        _line = line
        _pos = pos
    end
end


redef class EOF 
    redef meth parser_index: Int
    do
        return 84
    end
    
    init(fname: String, line: Int, pos: Int)
    do
        _filename = fname
        _text = ""
        _line = line
        _pos = pos
    end
end

redef class PError
    readable writable attr _message: String 
    
    init init_error(fname: String, line: Int, pos: Int, message: String)
    do
        init(fname, line, pos)
        _message = message
    end
end


# The lexer extract NIT tokens from an input stream.
# It is better user with the Parser
class Lexer
        # Last peeked token
        attr _token: Token

        # Lexer current state
        attr _state: Int = 0

        # Name of the stream (as given to tokens)
        readable attr _filename: String 

        # Input stream where character are read
        attr _stream: IStream

        # Pushback buffer to store unread character
        attr _stream_buf: Buffer

        # Number of character stored in the pushback buffer
        attr _stream_pos: Int

        # Current line number in the input stream
        attr _line: Int = 0

        # Current column in the input stream
        attr _pos: Int = 0

        # Was the last character a cariage-return?
        attr _cr: Bool = false

        # If the end of stream?
        attr _eof: Bool = false

        # Current working text read from the input stream
        attr _text: Buffer

        # Constante state values
        private meth state_initial: Int do return 0 end

        # Create a new lexer for a stream (and a name)
        init(stream: IStream, fname: String)
        do
                _filename = fname
                _text = new Buffer
                _stream = stream
                _stream_pos = -1
                _stream_buf = new Buffer
                build_goto_table
                build_accept_table
        end

        # Give the next token (but do not consume it)
        meth peek: Token
        do
                while _token == null do
                        _token = get_token
                end
                return _token
        end

        # Give and consume the next token
        meth next: Token
        do
                var result = _token
                while result == null do
                        result = get_token
                end
                _token = null
                return result
        end

        # Get a token, or null if it is discarded
        private meth get_token: Token
        do
                var dfa_state = 0

                var start_pos = _pos
                var start_line = _line

                var accept_state = -1
                var accept_token = -1
                var accept_length = -1
                var accept_pos = -1
                var accept_line = -1

                var goto_table = _goto_table[_state]
                var accept = _accept_table[_state]
                _text.clear

                while true do
                        var c = get_char

                        if c != -1 then
                                if c == 10 then
                                        if _cr then
                                                _cr = false
                                        else
                                                _line = _line + 1
                                                _pos = 0
                                        end
                                else if c == 13 then
                                        _line = _line + 1
                                        _pos = 0
                                        _cr = true
                                else
                                        _pos = _pos + 1
                                        _cr = false
                                end

                                _text.add(c.ascii)

                                var first_loop = true # aka until
                                while dfa_state < -1 or first_loop do
                                        var old_state = dfa_state
                                        if dfa_state < -1 then
                                                old_state = -2 - dfa_state
                                        end

                                        dfa_state = -1

                                        var tmp1 = goto_table[old_state]
                                        var low = 0
                                        var high = tmp1.length - 1

                                        while low <= high do
                                                var middle = (low + high) / 2
                                                var tmp2 = tmp1[middle]

                                                if c < tmp2[0] then
                                                        high = middle - 1
                                                else if c > tmp2[1] then
                                                        low = middle + 1
                                                else
                                                        dfa_state = tmp2[2]
                                                        low = high + 1 # aka break
                                                end
                                        end
                                        first_loop = false # aka until
                                end
                        else
                                dfa_state = -1
                        end

                        if dfa_state >= 0 then
                                if accept[dfa_state] != -1 then
                                        accept_state = dfa_state
                                        accept_token = accept[dfa_state]
                                        accept_length = _text.length
                                        accept_pos = _pos
                                        accept_line = _line
                                end
                        else
                                if accept_state != -1 then
                                        if accept_token == 0 then
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return null
                                        end
                                        if accept_token == 1 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TEol.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 2 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TComment.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 3 then
                                                var token = new TKwpackage.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 4 then
                                                var token = new TKwimport.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 5 then
                                                var token = new TKwclass.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 6 then
                                                var token = new TKwabstract.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 7 then
                                                var token = new TKwinterface.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 8 then
                                                var token = new TKwuniversal.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 9 then
                                                var token = new TKwspecial.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 10 then
                                                var token = new TKwend.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 11 then
                                                var token = new TKwmeth.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 12 then
                                                var token = new TKwtype.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 13 then
                                                var token = new TKwattr.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 14 then
                                                var token = new TKwinit.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 15 then
                                                var token = new TKwredef.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 16 then
                                                var token = new TKwis.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 17 then
                                                var token = new TKwdo.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 18 then
                                                var token = new TKwreadable.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 19 then
                                                var token = new TKwwritable.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 20 then
                                                var token = new TKwvar.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 21 then
                                                var token = new TKwintern.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 22 then
                                                var token = new TKwextern.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 23 then
                                                var token = new TKwprotected.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 24 then
                                                var token = new TKwprivate.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 25 then
                                                var token = new TKwintrude.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 26 then
                                                var token = new TKwif.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 27 then
                                                var token = new TKwthen.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 28 then
                                                var token = new TKwelse.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 29 then
                                                var token = new TKwwhile.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 30 then
                                                var token = new TKwfor.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 31 then
                                                var token = new TKwin.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 32 then
                                                var token = new TKwand.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 33 then
                                                var token = new TKwor.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 34 then
                                                var token = new TKwnot.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 35 then
                                                var token = new TKwreturn.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 36 then
                                                var token = new TKwcontinue.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 37 then
                                                var token = new TKwbreak.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 38 then
                                                var token = new TKwabort.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 39 then
                                                var token = new TKwassert.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 40 then
                                                var token = new TKwnew.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 41 then
                                                var token = new TKwisa.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 42 then
                                                var token = new TKwonce.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 43 then
                                                var token = new TKwsuper.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 44 then
                                                var token = new TKwself.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 45 then
                                                var token = new TKwtrue.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 46 then
                                                var token = new TKwfalse.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 47 then
                                                var token = new TKwnull.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 48 then
                                                var token = new TKwas.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 49 then
                                                var token = new TKwwith.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 50 then
                                                var token = new TOpar.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 51 then
                                                var token = new TCpar.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 52 then
                                                var token = new TObra.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 53 then
                                                var token = new TCbra.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 54 then
                                                var token = new TComma.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 55 then
                                                var token = new TColumn.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 56 then
                                                var token = new TQuad.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 57 then
                                                var token = new TAssign.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 58 then
                                                var token = new TPluseq.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 59 then
                                                var token = new TMinuseq.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 60 then
                                                var token = new TDotdotdot.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 61 then
                                                var token = new TDotdot.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 62 then
                                                var token = new TDot.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 63 then
                                                var token = new TPlus.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 64 then
                                                var token = new TMinus.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 65 then
                                                var token = new TStar.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 66 then
                                                var token = new TSlash.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 67 then
                                                var token = new TPercent.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 68 then
                                                var token = new TEq.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 69 then
                                                var token = new TNe.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 70 then
                                                var token = new TLt.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 71 then
                                                var token = new TLe.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 72 then
                                                var token = new TGt.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 73 then
                                                var token = new TGe.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 74 then
                                                var token = new TStarship.init_tk(_filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 75 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TClassid.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 76 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TId.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 77 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TAttrid.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 78 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TNumber.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 79 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TFloat.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 80 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TChar.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 81 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TString.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 82 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TStartString.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 83 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TMidString.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                        if accept_token == 84 then
                                                var token_text = _text.substring(0, accept_length)
                                                var token = new TEndString.init_tk(token_text, _filename, start_line + 1, start_pos + 1)
                                                push_back(accept_length)
                                                _pos = accept_pos
                                                _line = accept_line
                                                return token
                                        end
                                else
                                        if _text.length > 0 then
                                                var token = new PError.init_error(_filename, start_line + 1, start_pos + 1, "Unknown token: {_text}")
                                                return token
                                        else
                                                var token = new EOF(_filename, start_line + 1, start_pos + 1)
                                                return token
                                        end
                                end
                        end
                end
                return null
        end

        # Read the next character.
        # The character is read from the stream of from the pushback buffer.
        private meth get_char: Int
        do
                if _eof then
                        return -1
                end

                var result: Int

                var sp = _stream_pos
                if sp >= 0 then
                        var res = _stream_buf[_stream_pos]
                        _stream_pos = sp - 1
                        result = res.ascii
                else
                        result = _stream.read_char
                end

                if result == -1 then
                        _eof = true
                end

                return result
        end

        # Unread some characters.
        # Unread characters are stored in the pushback buffer.
        private meth push_back(accept_length: Int)
        do
                var length = _text.length
                var i = length - 1
                while i >= accept_length do
                        _eof = false
                        _stream_pos = _stream_pos + 1
                        _stream_buf[_stream_pos] = _text[i]
                        i = i - 1
                end
        end

        attr _goto_table: Array[Array[Array[Array[Int]]]]
        private meth build_goto_table
        do
                _goto_table = once [
                        [
                                [
                                        [9, 9, 1] ,
                                        [10, 10, 2] ,
                                        [13, 13, 3] ,
                                        [32, 32, 4] ,
                                        [33, 33, 5] ,
                                        [34, 34, 6] ,
                                        [35, 35, 7] ,
                                        [37, 37, 8] ,
                                        [39, 39, 9] ,
                                        [40, 40, 10] ,
                                        [41, 41, 11] ,
                                        [42, 42, 12] ,
                                        [43, 43, 13] ,
                                        [44, 44, 14] ,
                                        [45, 45, 15] ,
                                        [46, 46, 16] ,
                                        [47, 47, 17] ,
                                        [48, 57, 18] ,
                                        [58, 58, 19] ,
                                        [60, 60, 20] ,
                                        [61, 61, 21] ,
                                        [62, 62, 22] ,
                                        [65, 90, 23] ,
                                        [91, 91, 24] ,
                                        [93, 93, 25] ,
                                        [95, 95, 26] ,
                                        [97, 97, 27] ,
                                        [98, 98, 28] ,
                                        [99, 99, 29] ,
                                        [100, 100, 30] ,
                                        [101, 101, 31] ,
                                        [102, 102, 32] ,
                                        [103, 104, 33] ,
                                        [105, 105, 34] ,
                                        [106, 108, 33] ,
                                        [109, 109, 35] ,
                                        [110, 110, 36] ,
                                        [111, 111, 37] ,
                                        [112, 112, 38] ,
                                        [113, 113, 33] ,
                                        [114, 114, 39] ,
                                        [115, 115, 40] ,
                                        [116, 116, 41] ,
                                        [117, 117, 42] ,
                                        [118, 118, 43] ,
                                        [119, 119, 44] ,
                                        [120, 122, 33] ,
                                        [125, 125, 45] 
                                ] ,
                                [
                                        [9, 9, 1] ,
                                        [32, 32, 4] 
                                ] ,
                                nil_array ,
                                [
                                        [10, 10, 46] 
                                ] ,
                                [
                                        [9, 32, -3] 
                                ] ,
                                [
                                        [61, 61, 47] 
                                ] ,
                                [
                                        [0, 9, 48] ,
                                        [11, 12, 48] ,
                                        [14, 33, 48] ,
                                        [34, 34, 49] ,
                                        [35, 91, 48] ,
                                        [92, 92, 50] ,
                                        [93, 122, 48] ,
                                        [123, 123, 51] ,
                                        [124, 255, 48] 
                                ] ,
                                [
                                        [0, 9, 52] ,
                                        [10, 10, 53] ,
                                        [11, 12, 52] ,
                                        [13, 13, 54] ,
                                        [14, 255, 52] 
                                ] ,
                                nil_array ,
                                [
                                        [0, 9, 55] ,
                                        [11, 12, 55] ,
                                        [14, 38, 55] ,
                                        [39, 39, 56] ,
                                        [40, 255, 55] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                nil_array ,
                                [
                                        [61, 61, 57] 
                                ] ,
                                nil_array ,
                                [
                                        [61, 61, 58] 
                                ] ,
                                [
                                        [46, 46, 59] ,
                                        [48, 57, 60] 
                                ] ,
                                nil_array ,
                                [
                                        [46, 46, 61] ,
                                        [48, 57, 18] 
                                ] ,
                                [
                                        [58, 58, 62] 
                                ] ,
                                [
                                        [61, 61, 63] 
                                ] ,
                                [
                                        [61, 61, 64] 
                                ] ,
                                [
                                        [61, 61, 65] 
                                ] ,
                                [
                                        [48, 57, 66] ,
                                        [65, 90, 67] ,
                                        [95, 95, 68] ,
                                        [97, 122, 69] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                [
                                        [97, 122, 70] 
                                ] ,
                                [
                                        [48, 57, 71] ,
                                        [65, 90, 72] ,
                                        [95, 95, 73] ,
                                        [97, 97, 74] ,
                                        [98, 98, 75] ,
                                        [99, 109, 74] ,
                                        [110, 110, 76] ,
                                        [111, 114, 74] ,
                                        [115, 115, 77] ,
                                        [116, 116, 78] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 113, 74] ,
                                        [114, 114, 79] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 107, 74] ,
                                        [108, 108, 80] ,
                                        [109, 110, 74] ,
                                        [111, 111, 81] ,
                                        [112, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 110, 74] ,
                                        [111, 111, 82] ,
                                        [112, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 83] ,
                                        [109, 109, 74] ,
                                        [110, 110, 84] ,
                                        [111, 119, 74] ,
                                        [120, 120, 85] ,
                                        [121, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 86] ,
                                        [98, 110, 74] ,
                                        [111, 111, 87] ,
                                        [112, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 101, 74] ,
                                        [102, 102, 88] ,
                                        [103, 108, 74] ,
                                        [109, 109, 89] ,
                                        [110, 110, 90] ,
                                        [111, 114, 74] ,
                                        [115, 115, 91] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 100, 74] ,
                                        [101, 101, 92] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 93] ,
                                        [102, 110, 74] ,
                                        [111, 111, 94] ,
                                        [112, 116, 74] ,
                                        [117, 117, 95] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 109, 74] ,
                                        [110, 110, 96] ,
                                        [111, 113, 74] ,
                                        [114, 114, 97] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 98] ,
                                        [98, 113, 74] ,
                                        [114, 114, 99] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 100] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 101] ,
                                        [102, 111, 74] ,
                                        [112, 112, 102] ,
                                        [113, 116, 74] ,
                                        [117, 117, 103] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 103, 74] ,
                                        [104, 104, 104] ,
                                        [105, 113, 74] ,
                                        [114, 114, 105] ,
                                        [115, 120, 74] ,
                                        [121, 121, 106] ,
                                        [122, 122, 74] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 107] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 108] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 103, -43] ,
                                        [104, 104, 109] ,
                                        [105, 105, 110] ,
                                        [106, 113, 74] ,
                                        [114, 114, 111] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [0, 9, 112] ,
                                        [11, 12, 112] ,
                                        [14, 33, 112] ,
                                        [34, 34, 113] ,
                                        [35, 91, 112] ,
                                        [92, 92, 114] ,
                                        [93, 122, 112] ,
                                        [123, 123, 115] ,
                                        [124, 255, 112] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                [
                                        [0, 255, -8] 
                                ] ,
                                nil_array ,
                                [
                                        [0, 9, 116] ,
                                        [11, 12, 116] ,
                                        [14, 255, 116] 
                                ] ,
                                nil_array ,
                                [
                                        [0, 255, -9] 
                                ] ,
                                nil_array ,
                                [
                                        [10, 10, 117] 
                                ] ,
                                [
                                        [0, 255, -11] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                nil_array ,
                                [
                                        [46, 46, 118] 
                                ] ,
                                [
                                        [48, 57, 60] 
                                ] ,
                                [
                                        [48, 57, 60] 
                                ] ,
                                nil_array ,
                                [
                                        [62, 62, 119] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                [
                                        [48, 122, -25] 
                                ] ,
                                [
                                        [48, 122, -25] 
                                ] ,
                                [
                                        [48, 122, -25] 
                                ] ,
                                [
                                        [48, 122, -25] 
                                ] ,
                                [
                                        [48, 57, 120] ,
                                        [65, 90, 121] ,
                                        [95, 95, 122] ,
                                        [97, 122, 123] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 110, -32] ,
                                        [111, 111, 124] ,
                                        [112, 114, 74] ,
                                        [115, 115, 125] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 99, 74] ,
                                        [100, 100, 126] ,
                                        [101, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 114, 74] ,
                                        [115, 115, 127] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 115, 74] ,
                                        [116, 116, 128] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 129] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 130] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 131] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 114, -79] ,
                                        [115, 115, 132] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 99, -78] ,
                                        [100, 100, 133] ,
                                        [101, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 134] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 135] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 136] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 111, 74] ,
                                        [112, 112, 137] ,
                                        [113, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 104, 74] ,
                                        [105, 105, 138] ,
                                        [106, 115, 74] ,
                                        [116, 116, 139] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 140] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 141] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 118, 74] ,
                                        [119, 119, 142] ,
                                        [120, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 143] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 144] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 98, 74] ,
                                        [99, 99, 145] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 98, -98] ,
                                        [99, 99, 146] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 147] ,
                                        [106, 110, 74] ,
                                        [111, 111, 148] ,
                                        [112, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 149] ,
                                        [98, 99, 74] ,
                                        [100, 100, 150] ,
                                        [101, 115, 74] ,
                                        [116, 116, 151] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 152] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 153] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 111, -91] ,
                                        [112, 112, 154] ,
                                        [113, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 155] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 116, 74] ,
                                        [117, 117, 156] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 111, -91] ,
                                        [112, 112, 157] ,
                                        [113, 122, 74] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 158] ,
                                        [106, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 159] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 160] ,
                                        [106, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 161] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 162] ,
                                        [106, 122, 74] 
                                ] ,
                                [
                                        [0, 255, -47] 
                                ] ,
                                nil_array ,
                                [
                                        [0, 9, 163] ,
                                        [11, 12, 163] ,
                                        [14, 255, 163] 
                                ] ,
                                nil_array ,
                                [
                                        [0, 255, -8] 
                                ] ,
                                nil_array ,
                                nil_array ,
                                nil_array ,
                                [
                                        [48, 122, -72] 
                                ] ,
                                [
                                        [48, 122, -72] 
                                ] ,
                                [
                                        [48, 122, -72] 
                                ] ,
                                [
                                        [48, 122, -72] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 164] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 165] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 166] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 167] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 168] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 114, -79] ,
                                        [115, 115, 169] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 170] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 171] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 172] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 114, -79] ,
                                        [115, 115, 173] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 110, -32] ,
                                        [111, 111, 174] ,
                                        [112, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 175] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 176] ,
                                        [102, 113, 74] ,
                                        [114, 114, 177] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 103, -43] ,
                                        [104, 104, 178] ,
                                        [105, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 179] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 180] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 106, 74] ,
                                        [107, 107, 181] ,
                                        [108, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 117, 74] ,
                                        [118, 118, 182] ,
                                        [119, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 183] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 99, -78] ,
                                        [100, 100, 184] ,
                                        [101, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 185] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 116, -107] ,
                                        [117, 117, 186] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 101, -36] ,
                                        [102, 102, 187] ,
                                        [103, 122, 74] 
                                ] ,
                                [
                                        [48, 98, -98] ,
                                        [99, 99, 188] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 189] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 190] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 191] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 192] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 117, -149] ,
                                        [118, 118, 193] ,
                                        [119, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 194] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 103, -43] ,
                                        [104, 104, 195] ,
                                        [105, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 196] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [0, 255, -47] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 197] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 198] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 199] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 106, -148] ,
                                        [107, 107, 200] ,
                                        [108, 122, 74] 
                                ] ,
                                [
                                        [48, 114, -79] ,
                                        [115, 115, 201] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 202] ,
                                        [106, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 203] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 204] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 205] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 206] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 116, -107] ,
                                        [117, 117, 207] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 208] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 209] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 210] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 211] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 101, -36] ,
                                        [102, 102, 212] ,
                                        [103, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 213] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 104, -92] ,
                                        [105, 105, 214] ,
                                        [106, 122, 74] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 215] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 216] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 217] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 218] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 219] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 220] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 221] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 222] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 223] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 101, -36] ,
                                        [102, 102, 224] ,
                                        [103, 109, 74] ,
                                        [110, 110, 225] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 99, -78] ,
                                        [100, 100, 226] ,
                                        [101, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 102, 74] ,
                                        [103, 103, 227] ,
                                        [104, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 228] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 98, -98] ,
                                        [99, 99, 229] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 97, -29] ,
                                        [98, 98, 230] ,
                                        [99, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 109, -39] ,
                                        [110, 110, 231] ,
                                        [111, 122, 74] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 232] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 113, -30] ,
                                        [114, 114, 233] ,
                                        [115, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 97, -29] ,
                                        [98, 98, 234] ,
                                        [99, 122, 74] 
                                ] ,
                                [
                                        [48, 98, -98] ,
                                        [99, 99, 235] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 116, -107] ,
                                        [117, 117, 236] ,
                                        [118, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 237] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 238] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 239] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 240] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 241] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 242] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 243] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 114, -79] ,
                                        [115, 115, 244] ,
                                        [116, 122, 74] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 245] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 115, -80] ,
                                        [116, 116, 246] ,
                                        [117, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 247] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 98, -98] ,
                                        [99, 99, 248] ,
                                        [100, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 249] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 250] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 95, -29] ,
                                        [97, 97, 251] ,
                                        [98, 122, 74] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 252] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 100, -37] ,
                                        [101, 101, 253] ,
                                        [102, 122, 74] 
                                ] ,
                                [
                                        [48, 99, -78] ,
                                        [100, 100, 254] ,
                                        [101, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 107, -31] ,
                                        [108, 108, 255] ,
                                        [109, 122, 74] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] ,
                                [
                                        [48, 122, -35] 
                                ] 
                        ] 
                ]
        end
    
        private meth nil_array: Array[Array[Int]]
        do
                return once new Array[Array[Int]]
        end

        attr _accept_table: Array[Array[Int]]
        private meth build_accept_table do
                _accept_table = once [
                        [
                                -1 , 0 , 1 , 1 , 0 , -1 , -1 , -1 , 67 , -1 , 50 , 51 , 65 , 63 , 54 , 64 , 62 , 66 , 78 , 55 , 70 , 57 , 72 , 75 , 52 , 53 , -1 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , -1 , 1 , 69 , -1 , 81 , -1 , 82 , -1 , 2 , 2 , -1 , 80 , 58 , 59 , 61 , 79 , -1 , 56 , 71 , 68 , 73 , 75 , 75 , 75 , 75 , 77 , 76 , 76 , 76 , 76 , 76 , 76 , 48 , 76 , 76 , 76 , 76 , 17 , 76 , 76 , 76 , 76 , 76 , 26 , 76 , 31 , 16 , 76 , 76 , 76 , 76 , 76 , 33 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , -1 , 84 , -1 , 83 , -1 , 2 , 60 , 74 , 77 , 77 , 77 , 77 , 76 , 76 , 32 , 76 , 76 , 76 , 76 , 76 , 76 , 10 , 76 , 76 , 30 , 76 , 76 , 76 , 41 , 76 , 40 , 34 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 20 , 76 , 76 , 76 , -1 , 76 , 76 , 76 , 13 , 76 , 76 , 76 , 28 , 76 , 76 , 76 , 14 , 76 , 76 , 11 , 47 , 42 , 76 , 76 , 76 , 76 , 76 , 76 , 44 , 76 , 76 , 27 , 45 , 12 , 76 , 76 , 49 , 76 , 38 , 76 , 76 , 37 , 5 , 76 , 76 , 46 , 76 , 76 , 76 , 76 , 76 , 76 , 76 , 15 , 76 , 76 , 43 , 76 , 29 , 76 , 76 , 39 , 76 , 22 , 4 , 76 , 21 , 76 , 76 , 76 , 76 , 76 , 35 , 76 , 76 , 76 , 76 , 76 , 76 , 25 , 3 , 24 , 76 , 76 , 9 , 76 , 76 , 6 , 36 , 76 , 76 , 18 , 76 , 19 , 7 , 23 , 8  

                        ] 
                ]
        end
end