diff --git a/example_tree.hpp b/example_tree.hpp
index 09bcfab..8e6fe8f 100644
--- a/example_tree.hpp
+++ b/example_tree.hpp
@@ -1,30 +1,53 @@
 void create_tree()
 {
 	// Declare your tree
-	Tree tree("first_tree");
+	Tree t("first_tree");
 
-	// Add member Adam with parents Nobody, Born: y, m, d
-	tree.addPerson("Адам", true, Nobody, Nobody, {0, 1, 6}); // ID 0
-	tree.addPerson("Ева", false, Nobody, Nobody, {0, 1, 6}); // ID 1
+	// Add member Adam with parents Nobody
+	t.addPerson("Адам", M,        // ID 0
+				   Nobody, Nobody,
+				   {0, 1, 6});      // Born: y, m, d
+
+	t.addPerson("Ева", F,        // ID 1
+				   Nobody, Nobody,
+				   {0, 1, 6});
 
 	// Adam (0) is a Spouse of Eve (1)
-	tree.addRelation(0, Spouse, 1);
+	t.addRelation(0, Spouse, 1);
 
 	// Add Cain with parents Adam (0) and Eve
-	tree.addPerson("Кайн", true, 0, 1);
+	t.addPerson("Кайн", M,
+				   0, 1);
 
-	tree.addPerson("Авел", true, 0, 1);
+	t.addPerson("Авел", M,
+				   0, 1);
 
-	tree.addPerson("Сит", true, 0, 1, 230);
-	tree.addPerson("Енос", true, 4, Nobody, 435);
-	tree.addPerson("Каинан", true, 5 , Nobody, 605);
-	tree.addPerson("Малелеил", true, 6, Nobody, 605);
+	t.addPerson("Сит", M,
+				   0, 1,
+				   230);
+
+	t.addPerson("Енос", M,
+				   4, Nobody,
+				   435);
+
+	t.addPerson("Каинан", M,
+				   5, Nobody,
+				   605);
+
+	t.addPerson("Малелеил", M,
+				   6, Nobody,
+				   605);
 
 
-	tree.addPerson("Енох", true, 3 , Nobody);
-	tree.addPerson("Гаидад", true, 8 , Nobody);
-	tree.addPerson("Малелеил", true, 9, Nobody);
+	t.addPerson("Енох", M,
+				   3, Nobody);
 
-	tree.saveToFile();
-	tree.display();
+	t.addPerson("Гаидад", M,
+				   8, Nobody);
+
+	t.addPerson("Малелеил", M,
+				   9, Nobody);
+
+	/* t.saveToFile(); */
+	t.display();
 }
diff --git a/src/parser.cpp b/src/parser.cpp
new file mode 100644
index 0000000..04ccbd7
--- /dev/null
+++ b/src/parser.cpp
@@ -0,0 +1,157 @@
+#include <iostream>
+/* #include <string_view> */
+#include <string>
+#include "tree.hpp"
+#include "utils.hpp"
+
+using std::cerr;
+using std::string_view;
+using std::string;
+
+namespace /* internal */
+{
+	char* data;
+	char* data_end;				/* past the end pointer */
+	unsigned line = 1;
+
+	/* state */
+	void (*state)();			/* current state */
+	void state_neutral();
+	void state_person();
+	/* void state_person_attribute() */
+
+	/* result */
+	Tree* cur_tree;
+
+
+	void unexpected_char(char c)
+	{
+		cerr << "Line " << line <<  ": Unexpected '" << c << "'\n";
+		exit(1);
+		/* throw 0; */
+	}
+
+	void unexpected_end()
+	{
+		cerr << "Unexpected end of file";
+		exit(1);
+	}
+
+	void proceedToNameEnd()
+	{
+		while(data < data_end &&
+			  *data != ',' &&
+			  *data != '\n')
+		{
+			if(*data == ':' /* && *data == '-' */)
+				unexpected_char(*data);
+			++data;
+		}
+
+	}
+
+	Sex findSex()
+	{
+		Sex res = M;
+		if(*data == ',')
+		{
+			++data;
+			if(*data == 'M')
+				res = M;
+			else if(*data == 'F')
+				res = F;
+			else
+				unexpected_char(*data);
+
+			++data;
+			if(*data != '\n')
+				unexpected_char(*data);
+		}
+		return res;
+	}
+
+	void processAtribute()
+	{
+
+	}
+
+	void state_neutral()
+	{
+		for(; data < data_end; ++data)
+		{
+			switch(*data)
+			{
+			default:
+				state_person();
+				return;
+				break;
+			case '\n':
+				++line;
+				break;
+			/* case '#': */
+			/* 	state = state_comment; */
+			/* 	return; */
+			case ',':
+			case '-':
+			case 0 ... 9:
+			case ':':
+				unexpected_char(*data);
+			}
+		}
+	}
+
+	void state_person()
+	{
+		char* name_start = data;
+		person_id parent1;
+		person_id parent2;
+		EventTime birth;
+		EventTime death;
+
+		proceedToNameEnd();
+		/* string_view name(name_start, data); */
+		string name(name_start, data);
+
+		Sex sex = findSex();
+
+		for(; data < data_end; ++data)
+		{
+			switch(*data)
+			{
+			case '\n':
+				++line;
+				if(data[1] == ':') /* todo */
+				{
+					processAtribute();
+				}
+				else
+				{
+					cur_tree->addPerson(name.c_str(), sex/* , parent1, parent2, birth, death */);
+				}
+				break;
+			/* case '#': */
+				/* state = state_comment; */
+				/* return; */
+			/* case 0...9: */
+			/* case ':': */
+			/* 	unexpected_char(*data); */
+			default:
+				break;
+			}
+		}
+	}
+}
+
+
+Tree parseTftFile(MappedFile file)
+{
+	data = file.data;
+	data_end = file.data + file.len;
+
+	Tree result("name");
+	cur_tree = &result;
+
+	state_neutral();
+
+	return result;
+}
diff --git a/src/parser.hpp b/src/parser.hpp
new file mode 100644
index 0000000..7ce9e19
--- /dev/null
+++ b/src/parser.hpp
@@ -0,0 +1,3 @@
+#include "tree.hpp"
+
+Tree parseTftFile(MappedFile file);
diff --git a/src/person.cpp b/src/person.cpp
index d91ec3f..78cb751 100644
--- a/src/person.cpp
+++ b/src/person.cpp
@@ -60,10 +60,10 @@ void EventTime::print() const
 }
 
 
-Person::Person(const char* name, EventTime birth, bool isMale, EventTime death)
+Person::Person(const char* name, EventTime birth, Sex sex, EventTime death)
 	: name_(name)
 	, birth_(birth)
-    , isMale_(isMale)
+    , sex(sex)
 	, death_(death)
 {
 }
@@ -71,7 +71,7 @@ Person::Person(const char* name, EventTime birth, bool isMale, EventTime death)
 
 bool Person::operator==(const Person &other)const
 {
-	return name_ == other.name_; //&& isMale_ == other.isMale_; //TODO && day == other.day || !day || !other.day) && (month == other.month || !month || !other.month) && (year == other.year || !year || !other.year);
+	return name_ == other.name_; //&& sex == other.sex; //TODO && day == other.day || !day || !other.day) && (month == other.month || !month || !other.month) && (year == other.year || !year || !other.year);
 }
 
 
@@ -81,7 +81,7 @@ void Person::write(std::ofstream &file)const
 	char nameLen = name_.size();
 	file.write(reinterpret_cast<char*>(&nameLen), sizeof(nameLen));
 	file.write(name_.data(), nameLen * sizeof(name_[0]));
-	file.write(reinterpret_cast<const char*>(&isMale_), sizeof(isMale_));
+	file.write(reinterpret_cast<const char*>(&sex), sizeof(sex));
 	//file.write(reinterpret_cast<const char*>(&day), sizeof(day)); TODO
 	//file.write(reinterpret_cast<const char*>(&month), sizeof(month));
 	//file.write(reinterpret_cast<const char*>(&year), sizeof(year));
@@ -97,7 +97,7 @@ void Person::read(std::ifstream &file)
 	nameBuf[nameLen] = '\0';
 	name_ = nameBuf;
 
-	file.read(reinterpret_cast<char*>(&isMale_), sizeof(isMale_));
+	file.read(reinterpret_cast<char*>(&sex), sizeof(sex));
 	//file.read(reinterpret_cast<char*>(&day), sizeof(day)); TODO
 	//file.read(reinterpret_cast<char*>(&month), sizeof(month));
 	//file.read(reinterpret_cast<char*>(&year), sizeof(year));
@@ -132,11 +132,6 @@ void Person::displayInfo()const
 }
 
 
-bool Person::isMale() const
-{
-	return isMale_;
-}
-
 static U16 strUtf8Symbols(const std::string& str)
 {
 	U16 num = 0;
@@ -172,7 +167,7 @@ void Person::draw(const I16 drawY, const I16 drawX, bool selected, bool hasSpous
 		WINDOW* pad = newpad(BOX_HEIGHT, width);
 
 		auto color_pair = COLOR_PAIR( selected ? COLOR_SELECTED
-									  : (isMale_ ? COLOR_MALE : COLOR_FEMALE) );
+									  : (sex ? COLOR_MALE : COLOR_FEMALE) );
 
 		wbkgd(pad, color_pair);
 		/* wattron(pad, color_pair); */
diff --git a/src/person.hpp b/src/person.hpp
index d9c8bb0..a440dd6 100644
--- a/src/person.hpp
+++ b/src/person.hpp
@@ -20,10 +20,10 @@ struct EventTime
 	I8  minute;		//0-59
 };
 
-enum Genders: U8
+enum Sex: U8
 {
-	FEMALE = 0,
-	MALE
+	M = 0,
+	F
 };
 
 enum BoxColors: U8 {
@@ -41,7 +41,7 @@ class Person
 {
 public:
 	Person() = default;
-	Person(const char* name, EventTime birth={}, bool sex=true, EventTime death={});
+	Person(const char* name, EventTime birth={}, Sex=M, EventTime death={});
 	/* Person(Person&&) = default; */
 	/* Person& operator=(Person&&) = default; */
 	/* Person& operator=(const Person&) = default; */
@@ -54,7 +54,6 @@ public:
 
 	void displayInfo() const;
 
-	bool isMale() const;
 	const EventTime& birth() const { return birth_; };
 	U16 boxWidth() const;
 
@@ -63,9 +62,8 @@ public:
 	   returns the width of the box*/
 	void draw(I16 drawY, I16 drawX, bool selected, bool hasSpouse, bool isSpouse, bool hasChildren=false) const;
 
-private:
 	std::string name_;
 	EventTime birth_;
-	bool isMale_;
+	Sex sex;
 	EventTime death_;
 };
diff --git a/src/tft.cpp b/src/tft.cpp
index b5f602a..c68929b 100644
--- a/src/tft.cpp
+++ b/src/tft.cpp
@@ -2,6 +2,7 @@
 #include <iostream>
 #include "tree.hpp"
 #include "utils.hpp"
+#include "parser.hpp"
 
 
 /* using std::cin; */
@@ -10,27 +11,30 @@ int main(int argc, char* argv[])
 {
 	init();
 
+	auto f = mapfile("example_tree.tft");
+	parseTftFile(f).display();
+
 	Tree test1("Dechkovi");
 	test1.loadFromFile();
 
 
-	/* test1.addPerson("Rumen", true, Nobody, Nobody, {1968, 8, 9}); */
-	/* test1.addPerson("Nadejda", false, Nobody, Nobody, {1972, 12, 15}); */
+	/* test1.addPerson("Rumen", M, Nobody, Nobody, {1968, 8, 9}); */
+	/* test1.addPerson("Nadejda", F, Nobody, Nobody, {1972, 12, 15}); */
 	/* test1.addRelation(0, Spouse, 1); */
-	/* test1.addPerson("Venelin", true, 0, 1, {1998, 6, 9}); */
-	/* test1.addPerson("Vasil", true, 0, 1, {2001, 1, 16}); */
+	/* test1.addPerson("Venelin", M, 0, 1, {1998, 6, 9}); */
+	/* test1.addPerson("Vasil", M, 0, 1, {2001, 1, 16}); */
 	/* test1.saveToFile(); */
 
 	Tree test2("Karamanovi");
-	test2.addPerson("Vasil Dimitrov", true, Nobody, Nobody, {1941, 5, 18});
-	test2.addPerson("Maria", false);
+	test2.addPerson("Vasil Dimitrov", M, Nobody, Nobody, {1941, 5, 18});
+	test2.addPerson("Maria", F);
 	test2.addRelation(0, Spouse, 1);
-	test2.addPerson("Dimitar", true, 0, 1);
-	test2.addPerson("Nadejda", false, 0, 1, {1972, 12, 15});
-	test2.addPerson("Branimira", false);
+	test2.addPerson("Dimitar", M, 0, 1);
+	test2.addPerson("Nadejda", F, 0, 1, {1972, 12, 15});
+	test2.addPerson("Branimira", F);
 	test2.addRelation(2, Spouse, 4);
-	test2.addPerson("Ioan", true, 2, 4);
-	test2.addPerson("Rumiana", false, 2, 4);
+	test2.addPerson("Ioan", M, 2, 4);
+	test2.addPerson("Rumiana", F, 2, 4);
 
 	test1.display();
 	test2.display();
@@ -38,25 +42,25 @@ int main(int argc, char* argv[])
 	(test2 + test1).display();
 
 	/* Tree firstTree("firstTree"); */
-	/* firstTree.addPerson("Адам", true, Nobody, Nobody, {0, 1, 6}); */
-	/* firstTree.addPerson("Ева", false, Nobody, Nobody, {0, 1, 6}); */
+	/* firstTree.addPerson("Адам", M, Nobody, Nobody, {0, 1, 6}); */
+	/* firstTree.addPerson("Ева", F, Nobody, Nobody, {0, 1, 6}); */
 	/* firstTree.addRelation(0, Spouse, 1); */
 
-	/* firstTree.addPerson("Кайн", true, 0, 1); */
+	/* firstTree.addPerson("Кайн", M, 0, 1); */
 
-	/* firstTree.addPerson("Авел", true, 0, 1); */
+	/* firstTree.addPerson("Авел", M, 0, 1); */
 	/* firstTree.addRelation(2, Sibling, 3); */
 
-	/* firstTree.addPerson("Сит", true, 0, 1, 230); */
+	/* firstTree.addPerson("Сит", M, 0, 1, 230); */
 	/* firstTree.addRelation(2, Sibling, 4); */
-	/* firstTree.addPerson("Енос", true, 4, Nobody, 435); */
-	/* firstTree.addPerson("Каинан", true, 5 , Nobody, 605); */
-	/* firstTree.addPerson("Малелеил", true, 6, Nobody, 605); */
+	/* firstTree.addPerson("Енос", M, 4, Nobody, 435); */
+	/* firstTree.addPerson("Каинан", M, 5 , Nobody, 605); */
+	/* firstTree.addPerson("Малелеил", M, 6, Nobody, 605); */
 
 
-	/* firstTree.addPerson("Енох", true, 3 , Nobody); */
-	/* firstTree.addPerson("Гаидад", true, 8 , Nobody); */
-	/* firstTree.addPerson("Малелеил", true, 9, Nobody); */
+	/* firstTree.addPerson("Енох", M, 3 , Nobody); */
+	/* firstTree.addPerson("Гаидад", M, 8 , Nobody); */
+	/* firstTree.addPerson("Малелеил", M, 9, Nobody); */
 
 
 	/* firstTree.print(); */
@@ -70,7 +74,7 @@ int main(int argc, char* argv[])
 
 	/* std::vector<Tree> trees; */
 
-	/* bool quit = false; */
+	/* bool quit = F; */
 	/* char input[128]; */
 	/* short i; //Number of the entered command */
 	/* const short numCom = 24; */
diff --git a/src/tree.cpp b/src/tree.cpp
index 84bc4a9..dd9159f 100644
--- a/src/tree.cpp
+++ b/src/tree.cpp
@@ -102,9 +102,9 @@ void Tree::rename(const char* newName)
 	treeName = newName;
 }
 
-person_id Tree::findId(const char* name, bool m) const
+person_id Tree::findId(const char* name, Sex s) const
 {
-	Person sought(name, {}, m);
+	Person sought(name, {}, s);
 	for (person_id i = 0; i < numPeople; ++i)
 	{
 		if (sought == people[i])
@@ -113,12 +113,12 @@ person_id Tree::findId(const char* name, bool m) const
 	return Nobody;
 }
 
-person_id Tree::findOldestAncestor(person_id id, bool isMale) const
+person_id Tree::findOldestAncestor(person_id id, Sex sex) const
 {
 	for (const Relation& rel: relations[id])
 	{
-		if (rel.type == Child && people[ rel.id ].isMale() == isMale)
-			return findOldestAncestor(rel.id, isMale);
+		if (rel.type == Child && people[ rel.id ].sex == sex)
+			return findOldestAncestor(rel.id, sex);
 	}
 	return id;
 }
@@ -143,12 +143,12 @@ person_id Tree::findCommonAncestor(const unsigned first, const unsigned second)
 	return oldest;
 }
 
-person_id Tree::findParent(person_id child, bool isParentMale) const
+person_id Tree::findParent(person_id child, Sex parentSex) const
 {
 	person_id parent = Nobody;
 	for(const Relation& rel: relations[child])
 	{
-		if (rel.type == Child && people[rel.id].isMale() == isParentMale)
+		if (rel.type == Child && people[rel.id].sex == parentSex)
 			parent = rel.id;
 	}
 	return parent;
@@ -253,9 +253,9 @@ bool Tree::loadFromFile()
 	return true;
 }
 
-void Tree::addPerson(const char* name, bool isMale, unsigned father, unsigned mother, EventTime birth, EventTime death)
+void Tree::addPerson(const char* name, Sex sex, unsigned father, unsigned mother, EventTime birth, EventTime death)
 {
-	people.emplace_back(name, birth, isMale, death);
+	people.emplace_back(name, birth, sex, death);
 
 	relations.emplace_back();	/* relations of the new person */
 	++numPeople;
@@ -464,8 +464,8 @@ void Tree::display()
 
 void Tree::updateRels(person_id id)
 {
-	person_id dad = findParent(id, true);
-	person_id mom = findParent(id, false);
+	person_id dad = findParent(id, M);
+	person_id mom = findParent(id, F);
 
 	auto dad_children = findChildren(dad, id);
 	auto mom_children = findChildren(mom, id);
@@ -570,8 +570,8 @@ void Tree::printMember(const unsigned id)const
 
 void Tree::printOldestAncestors(const unsigned id)const
 {
-	people[findOldestAncestor(id)].displayInfo();
-	people[findOldestAncestor(id, 1)].displayInfo();
+	people[findOldestAncestor(id, M)].displayInfo();
+	people[findOldestAncestor(id, F)].displayInfo();
 }
 
 
@@ -749,7 +749,7 @@ void Tree::selectUp()
 	{
 		if (rel.type == Child)
 		{
-			if (people[rel.id].isMale())
+			if (people[rel.id].sex == M)
 				dad = rel.id;
 			else
 				mom = rel.id;
@@ -801,7 +801,7 @@ void Tree::selectLeftSibSpouse(person_id person) /* todo: return a value and spl
 			}
 		}
 	}
-	else if(person_id sel_par = findParent(person, true); sel_par != Nobody)
+	else if(person_id sel_par = findParent(person, M); sel_par != Nobody)
 	{
 		auto siblings = findChildren(sel_par);
 		for(auto it = siblings.begin()+1; it < siblings.end(); ++it)
@@ -835,7 +835,7 @@ void Tree::selectRightSib(person_id person)
 			}
 		}
 	}
-	else if(person_id sel_par = findParent(person, true); sel_par != Nobody)
+	else if(person_id sel_par = findParent(person, M); sel_par != Nobody)
 	{
 		auto siblings = findChildren(sel_par);
 		for(auto it = siblings.begin(); it < siblings.end()-1; ++it)
diff --git a/src/tree.hpp b/src/tree.hpp
index 09b0074..3f45633 100644
--- a/src/tree.hpp
+++ b/src/tree.hpp
@@ -44,12 +44,13 @@ public:
 
 	void rename(const char* newName);
 
-	person_id findId(const char* name, bool=true) const;
-	person_id findOldestAncestor(person_id, bool sex = 0) const;//
+	person_id findId(const char* name) const{return Nobody;} /* todo */
+	person_id findId(const char* name, Sex) const;
+	person_id findOldestAncestor(person_id, Sex) const;//
 	//oldest common ancestor ID, a person is considerd an ancestor of himself
 	person_id findCommonAncestor(person_id first, person_id second) const;
 	RelType   findRelation(person_id first, person_id second) const;
-	person_id findParent(person_id child, bool isParentMale) const;
+	person_id findParent(person_id child, Sex parentSex) const;
 	person_id findSpouse(person_id person) const;
 	std::vector<person_id> findChildren(person_id person) const;
 	std::vector<person_id> findChildren(person_id person, person_id exclude) const;
@@ -57,7 +58,7 @@ public:
 	void saveToFile()const;//
 	bool loadFromFile();
 
-	void addPerson(const char* name, bool isMale, person_id father=Nobody, person_id mother=Nobody, EventTime birth={}, EventTime death={});
+	void addPerson(const char* name, Sex sex, person_id father=Nobody, person_id mother=Nobody, EventTime birth={}, EventTime death={});
 	bool addRelation(const char* firstName, RelType, const char* secondName);   //Adds a new relation or edits an old one. 0 - failure 1 - success
 	bool addRelation(person_id first, RelType, person_id second, bool update=true);   //0 - failure 1 - success
 
diff --git a/src/utils.cpp b/src/utils.cpp
index a503e3c..9317196 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -1,6 +1,9 @@
 #include "utils.hpp"
 #include "person.hpp"
 #include <clocale>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
 
 void init()
 {
@@ -22,6 +25,18 @@ void init()
 	wnoutrefresh(stdscr);					/* if not present the first real refresh is missed */
 }
 
+MappedFile mapfile(const char* path)
+{
+	int file = open(path, O_RDONLY);
+
+	MappedFile res;
+	res.len = lseek(file, 0, SEEK_END);
+	res.data = (char*)mmap(nullptr, res.len, PROT_READ, MAP_PRIVATE, file, 0);
+
+	close(file);
+	return res;
+}
+
 bool willBeVisible(I16 drawY, I16 drawX, U16 height, U16 width)
 {
 	return (drawY + height > 0) && (drawX + width > 0) &&
diff --git a/src/utils.hpp b/src/utils.hpp
index 5a9a402..be8785c 100644
--- a/src/utils.hpp
+++ b/src/utils.hpp
@@ -25,6 +25,14 @@
 
 void init();
 
+struct MappedFile
+{
+	char* data;
+	unsigned len;
+};
+
+MappedFile mapfile(const char* path);
+
 template <class Vec>
 void remove(Vec& vec, size_t pos) /* Remove from vector by moving the last element in its place */
 {
diff --git a/todo.txt b/todo.txt
index aea56bc..58badee 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,3 +1,8 @@
+open tree
+
+Parser:
+- clean wh
+
 --help
 
 findRelative