diff --git a/lib/read_mealy_from_dot.cpp b/lib/read_mealy.cpp
similarity index 55%
rename from lib/read_mealy_from_dot.cpp
rename to lib/read_mealy.cpp
index c94fccc..c0dfd72 100644
--- a/lib/read_mealy_from_dot.cpp
+++ b/lib/read_mealy.cpp
@@ -1,9 +1,11 @@
-#include "read_mealy_from_dot.hpp"
+#include "read_mealy.hpp"
 #include "mealy.hpp"
 
 #include <boost/algorithm/string/trim.hpp>
 
+#include <cassert>
 #include <fstream>
+#include <sstream>
 #include <stdexcept>
 #include <string>
 
@@ -13,6 +15,54 @@ static string easy_substr(string const & s, size_t begin, size_t end){
 	return s.substr(begin, end - begin);
 }
 
+mealy read_mealy_from_txt(std::istream & in) {
+	mealy m;
+
+	state max_state = 0;
+	input max_input = 0;
+	output max_output = 0;
+
+	string line;
+	while (getline(in, line)) {
+		state from, to;
+		input i;
+		output o;
+		string seperator;
+
+		stringstream ss(line);
+		ss >> from >> seperator >> i >> seperator >> o >> seperator >> to;
+
+		if (from >= max_state) max_state = from + 1;
+		if (to >= max_state) max_state = to + 1;
+		if (i >= max_input) max_input = i + 1;
+		if (o >= max_output) max_output = o + 1;
+
+		if (defined(m, from, i)) throw runtime_error("Nondeterministic machine");
+
+		m.graph.resize(max_state);
+		auto & v = m.graph[from];
+		v.resize(max_input);
+		v[i] = mealy::edge(to, o);
+
+		assert(defined(m, to, i));
+	}
+
+	m.graph_size = max_state;
+	m.input_size = max_input;
+	m.output_size = max_output;
+
+	if (m.graph_size == 0) throw runtime_error("Empty state set");
+	if (m.input_size == 0) throw runtime_error("Empty input set");
+	if (m.output_size == 0) throw runtime_error("Empty output set");
+	if (!is_complete(m)) throw runtime_error("Partial machine");
+	return m;
+}
+
+mealy read_mealy_from_txt(const std::string & filename) {
+	std::ifstream file(filename);
+	return read_mealy_from_txt(file);
+}
+
 mealy read_mealy_from_dot(std::istream & in, translation & t){
 	mealy m;
 
@@ -89,3 +139,39 @@ std::pair<mealy, translation> read_mealy_from_dot(const string & filename){
 	const auto m = read_mealy_from_dot(filename, t);
 	return {move(m), move(t)};
 }
+
+
+template <typename T>
+std::vector<std::string> create_reverse_map_impl(std::map<std::string, T> const & indices) {
+	std::vector<std::string> ret(indices.size());
+	for (auto && p : indices) {
+		ret[p.second] = p.first;
+	}
+	return ret;
+}
+
+std::vector<string> create_reverse_map(const std::map<string, input> & indices) {
+	return create_reverse_map_impl(indices);
+}
+
+#if 0 // Note: input and output are equal types, so this would be a redecl
+std::vector<string> create_reverse_map(const std::map<string, output> & indices) {
+	return create_reverse_map_impl(indices);
+}
+#endif
+
+translation create_translation_for_mealy(const mealy & m) {
+	translation t;
+	t.max_input = m.input_size;
+	t.max_output = m.output_size;
+
+	for (input i = 0; i < t.max_input; ++i) {
+		t.input_indices[to_string(i)] = i;
+	}
+
+	for (output o = 0; o < t.max_output; ++o) {
+		t.output_indices[to_string(o)] = o;
+	}
+
+	return t;
+}
diff --git a/lib/read_mealy.hpp b/lib/read_mealy.hpp
new file mode 100644
index 0000000..845311a
--- /dev/null
+++ b/lib/read_mealy.hpp
@@ -0,0 +1,42 @@
+#pragma once
+
+#include "types.hpp"
+
+#include <iosfwd>
+#include <map>
+#include <utility>
+
+struct mealy;
+struct translation;
+
+/// \brief reads a mealy machine from plain txt file as provided by A. T. Endo
+/// States, inputs and outputs in these files are already integral, so no need for translation
+mealy read_mealy_from_txt(std::istream & in);
+mealy read_mealy_from_txt(std::string const & filename);
+
+/// \brief reads a mealy machine from dot files as generated by learnlib
+/// Here we need a translation, which is extended during parsing
+mealy read_mealy_from_dot(std::istream & in, translation & t);
+mealy read_mealy_from_dot(std::string const & filename, translation & t);
+
+/// \brief reads a mealy machine from dot files as generated by learnlib
+/// Here the translation starts out empty and is returned in the end
+std::pair<mealy, translation> read_mealy_from_dot(std::istream & in);
+std::pair<mealy, translation> read_mealy_from_dot(std::string const & filename);
+
+
+/// \brief For non-integral formats we use a translation to integers
+struct translation {
+	std::map<std::string, input> input_indices;
+	input max_input = 0;
+
+	std::map<std::string, output> output_indices;
+	output max_output = 0;
+};
+
+/// \brief inverts the input_indices and output_indices maps
+std::vector<std::string> create_reverse_map(std::map<std::string, input> const & indices);
+std::vector<std::string> create_reverse_map(std::map<std::string, output> const & indices);
+
+/// \brief defines trivial translation (the string represent integers directly)
+translation create_translation_for_mealy(mealy const & m);
diff --git a/lib/read_mealy_from_dot.hpp b/lib/read_mealy_from_dot.hpp
deleted file mode 100644
index 653d7cb..0000000
--- a/lib/read_mealy_from_dot.hpp
+++ /dev/null
@@ -1,38 +0,0 @@
-#pragma once
-
-#include "types.hpp"
-
-#include <iosfwd>
-#include <map>
-#include <utility>
-
-/*
- * These maps record the translation used while reading.
- */
-struct translation {
-	std::map<std::string, input> input_indices;
-	input max_input = 0;
-
-	std::map<std::string, output> output_indices;
-	output max_output = 0;
-};
-
-struct mealy;
-
-// Read a mealy machine while extending the translation
-mealy read_mealy_from_dot(std::istream & in, translation & t);
-mealy read_mealy_from_dot(const std::string & filename, translation & t);
-
-// Read a mealy machine, starting with the empty translation
-std::pair<mealy, translation> read_mealy_from_dot(std::istream & in);
-std::pair<mealy, translation> read_mealy_from_dot(const std::string & filename);
-
-// Used to invert the input_indices and output_indices maps
-template <typename T>
-std::vector<std::string> create_reverse_map(std::map<std::string, T> const & indices){
-	std::vector<std::string> ret(indices.size());
-	for(auto&& p : indices){
-		ret[p.second] = p.first;
-	}
-	return ret;
-}
diff --git a/lib/read_mealy_from_txt.cpp b/lib/read_mealy_from_txt.cpp
deleted file mode 100644
index 6a1d75a..0000000
--- a/lib/read_mealy_from_txt.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-#include "read_mealy_from_txt.hpp"
-#include "mealy.hpp"
-
-#include <cassert>
-#include <fstream>
-#include <sstream>
-#include <string>
-
-#include <iostream>
-
-using namespace std;
-
-mealy read_mealy_from_txt(std::istream & in) {
-	mealy m;
-
-	state max_state = 0;
-	input max_input = 0;
-	output max_output = 0;
-
-	string line;
-	while (getline(in, line)) {
-		state from, to;
-		input i;
-		output o;
-		string seperator;
-
-		stringstream ss(line);
-		ss >> from >> seperator >> i >> seperator >> o >> seperator >> to;
-
-		if (from >= max_state) max_state = from + 1;
-		if (to >= max_state) max_state = to + 1;
-		if (i >= max_input) max_input = i + 1;
-		if (o >= max_output) max_output = o + 1;
-
-		if (defined(m, from, i)) throw runtime_error("Nondeterministic machine");
-
-		m.graph.resize(max_state);
-		auto & v = m.graph[from];
-		v.resize(max_input);
-		v[i] = mealy::edge(to, o);
-
-		assert(defined(m, to, i));
-	}
-
-	m.graph_size = max_state;
-	m.input_size = max_input;
-	m.output_size = max_output;
-
-	if (m.graph_size == 0) throw runtime_error("Empty state set");
-	if (m.input_size == 0) throw runtime_error("Empty input set");
-	if (m.output_size == 0) throw runtime_error("Empty output set");
-	if (!is_complete(m)) throw runtime_error("Partial machine");
-	return m;
-}
-
-mealy read_mealy_from_txt(const std::string & filename) {
-	std::ifstream file(filename);
-	return read_mealy_from_txt(file);
-}
-
-
-translation create_translation_for_mealy(const mealy & m) {
-	translation t;
-	t.max_input = m.input_size;
-	t.max_output = m.output_size;
-
-	for (input i = 0; i < t.max_input; ++i) {
-		t.input_indices[to_string(i)] = i;
-	}
-
-	for (output o = 0; o < t.max_output; ++o) {
-		t.output_indices[to_string(o)] = o;
-	}
-
-	return t;
-}
diff --git a/lib/read_mealy_from_txt.hpp b/lib/read_mealy_from_txt.hpp
deleted file mode 100644
index cb8e3d0..0000000
--- a/lib/read_mealy_from_txt.hpp
+++ /dev/null
@@ -1,15 +0,0 @@
-#pragma once
-
-#include "types.hpp"
-#include "read_mealy_from_dot.hpp"
-
-#include <iosfwd>
-
-struct mealy;
-
-/// \brief reads a mealy machine from plain txt file (as provided by A. T. Endo)
-/// States, inputs and outputs in these files are already integral (and contiguous)
-mealy read_mealy_from_txt(std::istream & in);
-mealy read_mealy_from_txt(std::string const & filename);
-
-translation create_translation_for_mealy(mealy const & m);
diff --git a/lib/write_tree_to_dot.cpp b/lib/write_tree_to_dot.cpp
index 567a3c5..aefdaa0 100644
--- a/lib/write_tree_to_dot.cpp
+++ b/lib/write_tree_to_dot.cpp
@@ -1,5 +1,5 @@
 #include "adaptive_distinguishing_sequence.hpp"
-#include "read_mealy_from_dot.hpp"
+#include "read_mealy.hpp"
 #include "splitting_tree.hpp"
 #include "write_tree_to_dot.hpp"
 
diff --git a/src/distance.cpp b/src/distance.cpp
index 428ec81..ea34de2 100644
--- a/src/distance.cpp
+++ b/src/distance.cpp
@@ -1,5 +1,5 @@
 #include <mealy.hpp>
-#include <read_mealy_from_dot.hpp>
+#include <read_mealy.hpp>
 
 #include <iostream>
 #include <fstream>
diff --git a/src/main.cpp b/src/main.cpp
index 1a20d6c..ecc3370 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,8 +2,7 @@
 #include <logging.hpp>
 #include <mealy.hpp>
 #include <reachability.hpp>
-#include <read_mealy_from_dot.hpp>
-#include <read_mealy_from_txt.hpp>
+#include <read_mealy.hpp>
 #include <characterization_family.hpp>
 #include <separating_matrix.hpp>
 #include <splitting_tree.hpp>
diff --git a/src/methods.cpp b/src/methods.cpp
index 349d36f..667eac8 100644
--- a/src/methods.cpp
+++ b/src/methods.cpp
@@ -1,6 +1,5 @@
 #include <adaptive_distinguishing_sequence.hpp>
-#include <read_mealy_from_dot.hpp>
-#include <read_mealy_from_txt.hpp>
+#include <read_mealy.hpp>
 #include <characterization_family.hpp>
 #include <separating_matrix.hpp>
 #include <trie.hpp>
diff --git a/src/pre_gephi_tool.cpp b/src/pre_gephi_tool.cpp
index 4209166..d8f46b6 100644
--- a/src/pre_gephi_tool.cpp
+++ b/src/pre_gephi_tool.cpp
@@ -1,5 +1,5 @@
 #include <mealy.hpp>
-#include <read_mealy_from_dot.hpp>
+#include <read_mealy.hpp>
 #include <transfer_sequences.hpp>
 
 #include <boost/optional.hpp>
diff --git a/src/reachability.cpp b/src/reachability.cpp
index 633e507..0ff3a92 100644
--- a/src/reachability.cpp
+++ b/src/reachability.cpp
@@ -1,5 +1,5 @@
 #include <mealy.hpp>
-#include <read_mealy_from_dot.hpp>
+#include <read_mealy.hpp>
 
 #include <fstream>
 #include <iostream>
diff --git a/src/stats.cpp b/src/stats.cpp
index c18836c..90ec6e4 100644
--- a/src/stats.cpp
+++ b/src/stats.cpp
@@ -1,6 +1,5 @@
 #include <mealy.hpp>
-#include <read_mealy_from_dot.hpp>
-#include <read_mealy_from_txt.hpp>
+#include <read_mealy.hpp>
 
 #include <algorithm>
 #include <fstream>
diff --git a/src/trees.cpp b/src/trees.cpp
index f89e643..cd91faa 100644
--- a/src/trees.cpp
+++ b/src/trees.cpp
@@ -1,5 +1,5 @@
 #include <adaptive_distinguishing_sequence.hpp>
-#include <read_mealy_from_dot.hpp>
+#include <read_mealy.hpp>
 #include <splitting_tree.hpp>
 #include <write_tree_to_dot.hpp>