/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/* 
 * File:   RnnTextHelper.hpp
 * Author: jens
 *
 * Created on 18. Januar 2022, 19:12
 */

#ifndef RNNTEXTHELPER_HPP
#define RNNTEXTHELPER_HPP

#include <armadillo>

class RnnTextHelper
{
public:
	RnnTextHelper();
	RnnTextHelper(const RnnTextHelper& orig) = delete;
	virtual ~RnnTextHelper();
	
	const char punctuation[5] = {' ', '.', '!', '?', 0};
	static constexpr int NUM_CODES = 1 + 26 + 10;
	static constexpr int SEQ_LENGTH = 2;

	static int char_is(char c, const char *pTable);
	static int ch2idx(char c);
	static char idx2ch(int index);

	static arma::mat createTraining(const std::string &filename, size_t seq_len);

private:

};

#endif /* RNNTEXTHELPER_HPP */