Function lex

query/lex.go:74–82

(name, input string)

}

func lex(name, input string) (*lexer, chan item) {
	l := &lexer{
		name:  name,
		input: input,
		items: make(chan item),
	}
	go l.run() // Concurrently run state machine.
	return l, l.items
}

// emit passes an item back to the client.
func (l *lexer) emit(t itemType) {