// NewParser returns a new Parser object
func NewParser(startState StateFn, lex lexer.Lexer, channelCap int) Parser {
p := &parser{
lex: lex,
tokens: queue.NewQueue(4),
pos: 0,
sequence: 0,
eofToken: nil,
eof: false,
state: startState,
chn: make(chan interface{}, channelCap),
}
return p
}
// NewLexer returns a new Lexer object
func NewLexer(startState StateFn, reader io.Reader, readerBufLen int, channelCap int) Lexer {
r := bufio.NewReaderSize(reader, readerBufLen)
l := &lexer{
reader: r,
bufLen: readerBufLen,
runes: queue.NewQueue(4),
state: startState,
tokens: make(chan *Token, channelCap),
line: 1,
column: 0,
eofToken: nil,
eof: false,
}
l.updatePeekBytes()
return l
}