diff --git a/source/RnnTextHelper.cpp b/source/RnnTextHelper.cpp
new file mode 100644
index 0000000..30cfe00
--- /dev/null
+++ b/source/RnnTextHelper.cpp
@@ -0,0 +1,124 @@
+/*
+ * 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.cpp
+ * Author: jens
+ * 
+ * Created on 18. Januar 2022, 19:12
+ */
+
+#include "RnnTextHelper.hpp"
+
+using namespace std;
+
+RnnTextHelper::RnnTextHelper()
+{
+}
+
+RnnTextHelper::~RnnTextHelper()
+{
+}
+
+int RnnTextHelper::char_is(char c, const char* pTable)
+{
+	int found = 0;
+	while (*pTable)
+	{
+		if (c == *pTable)
+		{
+			found = 1;
+			break;
+		}
+		pTable++;
+	}
+	return found;
+}
+
+int RnnTextHelper::ch2idx(char c)
+{
+	c = toupper(c);
+
+	int index = 0;
+	if (isalpha(c))
+	{
+		index = 1 + (int) (c - 'A');
+	}
+	if (isdigit(c))
+	{
+		index = 1 + 26 + (int) (c - '0');
+	}
+	return index;
+}
+
+char RnnTextHelper::idx2ch(int index)
+{
+	char c = '?';
+	if (index == 0)
+	{
+		c = ' ';
+	}
+	else if (index >= 1 and index < 27)
+	{
+		c = (char) (index + 'A' - 1);
+	}
+	else if (index >= 27 and index < 38)
+	{
+		c = (char) (index + '0' - 27);
+	}
+	return c;
+}
+
+arma::mat RnnTextHelper::createTraining(const string& filename, size_t seq_len)
+{
+	FILE *pFile;
+
+	pFile = fopen(filename.c_str(), "r");
+
+	if (!pFile)
+	{
+		std::cout << "Could not open " << filename << "!" << std::endl;
+		return 0;
+	}
+
+	int numTraining = 0;
+	int numVisible = seq_len*NUM_CODES;
+
+	arma::mat batch = arma::zeros(numTraining, numVisible);
+	arma::mat pattern = arma::zeros(seq_len, NUM_CODES);
+
+	for (int i = 0; i < seq_len; i++)
+	{
+		pattern.row(i)[0] = 1;
+	}
+
+	int last_index = ch2idx(' ');
+	while (!feof(pFile))
+	{
+		char c;
+		int result = fread(&c, 1, 1, pFile);
+		if (result < 0)
+		{
+			break;
+		}
+
+		int index = ch2idx(c);
+		if (index == 0 and last_index == 0)
+		{
+			continue;
+		}
+		last_index = index;
+		pattern = arma::shift(pattern, 1);
+		arma::mat data = arma::zeros(1, NUM_CODES);
+		data[index] = 1;
+		pattern.row(0) = data;
+		arma::mat pattern_vector = pattern.as_row();
+		batch.insert_rows(batch.n_rows, pattern_vector);
+	}
+	fclose(pFile);
+
+	return batch;
+}
diff --git a/source/RnnTextHelper.hpp b/source/RnnTextHelper.hpp
new file mode 100644
index 0000000..9d76695
--- /dev/null
+++ b/source/RnnTextHelper.hpp
@@ -0,0 +1,41 @@
+/*
+ * 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 */
+
diff --git a/source/poet.cpp b/source/poet.cpp
index 4f2079a..7aa24db 100644
--- a/source/poet.cpp
+++ b/source/poet.cpp
@@ -11,6 +11,7 @@
 #include "Layer.hpp"
 #include "RnnStack.hpp"
 #include "StackCreator.hpp"
+#include "RnnTextHelper.hpp"
 
 using namespace std;
 using namespace arma;
@@ -33,116 +34,23 @@ class RbmListener : public Rbm::IListener
 	}
 };
 
-const char punctuation[] = {' ', '.', '!', '?', 0};
-const int NUM_CODES = 1 + 26 + 10;
-const int SEQ_LENGTH = 2;
-
-int char_is(char c, const char *pTable)
-{
-	int found = 0;
-	while(*pTable)
-	{
-		if (c == *pTable)
-		{
-			found = 1;
-			break;
-		}
-		pTable++;
-	}
-	return found;
-}
-
-int ch2idx(char c)
-{
-	c = toupper(c);
-
-	int index = 0;
-	if (isalpha(c))
-	{
-		index = 1+ (int)(c-'A');
-	}
-	if (isdigit(c))
-	{
-		index = 1+26+(int)(c-'0');
-	}
-	return index;
-}
-
-char idx2ch(int index)
-{
-	char c = '?';
-	if (index == 0)
-	{
-		c = ' ';
-	}
-	else if (index >= 1 and index < 27)
-	{
-		c = (char)(index + 'A' - 1);
-	}
-	else if (index >= 27 and index < 38)
-	{
-		c = (char)(index + '0' - 27);
-	}
-	return c;
-}
-
-arma::mat createTraining(const string &filename, size_t seq_len)
-{
-	FILE *pFile;
-
-	pFile = fopen(filename.c_str(), "r");
-
-	if (!pFile)
-	{
-		std::cout << "Could not open " << filename << "!" << std::endl;
-		return 0;
-	}
-
-	int numTraining = 0;
-	int numVisible = seq_len*NUM_CODES;
-	
-	arma::mat batch = arma::zeros(numTraining, numVisible);
-	arma::mat pattern = arma::zeros(seq_len, NUM_CODES);
-	
-	for (int i=0; i < seq_len; i++)
-	{
-		pattern.row(i)[0] = 1;
-	}
-	
-	int last_index = ch2idx(' ');
-	while(!feof(pFile))
-	{
-		char c;
-		int result = fread(&c, 1, 1, pFile);
-		if (result < 0)
-		{
-			break;
-		}
-		
-		int index = ch2idx(c);
-		if (index == 0 and last_index == 0)
-		{
-			continue;
-		}
-		last_index = index;
-		pattern = arma::shift(pattern, 1);
-		arma::mat data = arma::zeros(1, NUM_CODES);
-		data[index] = 1;
-		pattern.row(0) = data;
-		arma::mat pattern_vector = pattern.as_row();
-		batch.insert_rows(batch.n_rows, pattern_vector);
-	}
-	fclose(pFile);
-	
-	return batch;
-}
 
 #define CREATE_TRAINING		0
-#define DO_TRAINING			1
+#define DO_TRAINING			0
 #define DO_FORWARD			1
 
 int main()
 {
+	arma::mat sm = arma::zeros(8, 4);
+	
+	for (int i=0; i < sm.n_rows; i++)
+	{
+		sm = arma::shift(sm, 1, 0);
+		//sm(0,0) = i;
+		sm.row(0) = i*arma::eye(1,4);
+		sm.print("sm");
+	}
+	
 #if CREATE_TRAINING	
 	arma::mat batch = createTraining("moby_ch1.txt", SEQ_LENGTH);
 	batch.save("poet2.training.dat", arma::arma_ascii);
@@ -195,14 +103,14 @@ int main()
 		curr = stack->to_curr(t_vc.row(i));
 		arma::mat r = stack->step_forward(state, curr);
 		arma::mat next = stack->to_next(r);
-		char c = idx2ch(next.index_max());
+		char c = RnnTextHelper::idx2ch(next.index_max());
 		putchar(c);
 	}
 	printf("\n");
 	for (int i=0; i < 40; i++)
 	{
 		curr = stack->to_next(stack->step_forward(state, curr));
-		char c = idx2ch(curr.index_max());
+		char c = RnnTextHelper::idx2ch(curr.index_max());
 		putchar(c);
 	}
 	printf("\n");