From bf7c9ead9fe04e482cca4ecbcfae40f0ebc8bc1e Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Thu, 1 Jul 2010 17:05:20 +0200
Subject: bla

---
 resources/literature/10.1.1.21.1679.pdf | Bin 259747 -> 0 bytes
 resources/literature/GNfaToDfa.cs       | 629 --------------------------------
 resources/literature/J00-1005.pdf       | Bin 925842 -> 0 bytes
 resources/literature/RENFADFA.doc       | Bin 131072 -> 0 bytes
 resources/literature/compactdfa.pdf     | Bin 0 -> 259747 bytes
 resources/literature/epsilonmoves.pdf   | Bin 0 -> 925842 bytes
 6 files changed, 629 deletions(-)
 delete mode 100644 resources/literature/10.1.1.21.1679.pdf
 delete mode 100644 resources/literature/GNfaToDfa.cs
 delete mode 100644 resources/literature/J00-1005.pdf
 delete mode 100644 resources/literature/RENFADFA.doc
 create mode 100644 resources/literature/compactdfa.pdf
 create mode 100644 resources/literature/epsilonmoves.pdf

(limited to 'resources')

diff --git a/resources/literature/10.1.1.21.1679.pdf b/resources/literature/10.1.1.21.1679.pdf
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diff --git a/resources/literature/GNfaToDfa.cs b/resources/literature/GNfaToDfa.cs
deleted file mode 100644
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--- a/resources/literature/GNfaToDfa.cs
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@@ -1,629 +0,0 @@
-// RegExp -> NFA -> DFA -> Graph in Generic C#
-// This program requires .Net version 2.0.
-// Peter Sestoft (sestoft@dina.kvl.dk) 
-// Java 2000-10-07, GC# 2001-10-23, 2003-09-03, 2004-07-26, 2006-03-05
-
-// This file contains, in order:
-//   * A class Nfa for representing an NFA (a nondeterministic finite 
-//     automaton), and for converting it to a DFA (a deterministic 
-//     finite automaton).  Most complexity is in this class.
-//   * A class Dfa for representing a DFA, a deterministic finite 
-//     automaton, and for writing a dot input file representing the DFA.
-//   * Classes for representing regular expressions, and for building an 
-//     NFA from a regular expression
-//   * A test class that creates an NFA, a DFA, and a dot input file 
-//     for a number of small regular expressions.  The DFAs are 
-//     not minimized.
-
-using System;
-using System.Text;
-using System.Collections;
-using System.Collections.Generic;
-using System.IO;
-
-// A set represented as the collection of keys of a Dictionary
-
-class Set<T> : ICollection<T> {
-  // Only the keys matter; the type bool used for the value is arbitrary
-  private Dictionary<T,bool> dict;
-  public Set() { 
-    dict = new Dictionary<T,bool>();
-  }
-
-  public Set(T x) : this() { 
-    Add(x);
-  }
-
-  public Set(IEnumerable<T> coll) : this() {
-    foreach (T x in coll) 
-      Add(x);
-  }
-
-  public Set(T[] arr) : this() {
-    foreach (T x in arr) 
-      Add(x);
-  }
-
-  public bool Contains(T x) {
-    return dict.ContainsKey(x);
-  }
-
-  public void Add(T x) {
-    if (!Contains(x))
-      dict.Add(x, false);
-  }
-
-  public bool Remove(T x) {
-    return dict.Remove(x);
-  }
-
-  public void Clear() {
-    dict.Clear();
-  }
-
-  public bool IsReadOnly {
-    get { return false; } 
-  }
-  
-  public IEnumerator<T> GetEnumerator() {
-    return dict.Keys.GetEnumerator();
-  }
-
-  IEnumerator IEnumerable.GetEnumerator() {
-    return GetEnumerator();
-  }
-
-  public int Count {
-    get { return dict.Count; }
-  }
-  
-  public void CopyTo(T[] arr, int i) {
-    dict.Keys.CopyTo(arr, i);
-  }
-
-  // Is this set a subset of that?
-  public bool Subset(Set<T> that) { 
-    foreach (T x in this)
-      if (!that.Contains(x))
-        return false;
-    return true;            
-  }
-
-  // Create new set as intersection of this and that
-  public Set<T> Intersection(Set<T> that) { 
-    Set<T> res = new Set<T>();
-    foreach (T x in this)
-      if (that.Contains(x))
-        res.Add(x);
-    return res;
-  }
-
-  // Create new set as union of this and that
-  public Set<T> Union(Set<T> that) { 
-    Set<T> res = new Set<T>(this);
-    foreach (T x in that)
-      res.Add(x);
-    return res;
-  }
-
-  // Compute hash code -- should be cached for efficiency
-  public override int GetHashCode() { 
-    int res = 0;
-    foreach (T x in this)
-      res ^= x.GetHashCode();
-    return res;
-  }
-
-  public override bool Equals(Object that) { 
-    if (that is Set<T>) {
-      Set<T> thatSet = (Set<T>)that;
-      return thatSet.Count == this.Count 
-        && thatSet.Subset(this) && this.Subset(thatSet);
-    } else
-      return false;
-  }
-
-  public override String ToString() {
-    StringBuilder res = new StringBuilder();
-    res.Append("{ ");
-    bool first = true;
-    foreach (T x in this) {
-      if (!first) 
-        res.Append(", ");
-      res.Append(x);
-      first = false;
-    }
-    res.Append(" }");
-    return res.ToString();
-  }
-}
-
-// ----------------------------------------------------------------------
-
-// Regular expressions, NFAs, DFAs, and dot graphs
-// sestoft@dina.kvl.dk * 
-// Java 2001-07-10 * C# 2001-10-22 * Gen C# 2001-10-23, 2003-09-03
-
-// In the Generic C# 2.0 version we 
-//  use Queue<int> and Queue<Set<int>> for worklists
-//  use Set<int> for pre-DFA states
-//  use List<Transition> for NFA transition relations
-//  use Dictionary<Set<int>, Dictionary<String, Set<int>>>
-//  and Dictionary<int, Dictionary<String, int>> for DFA transition relations
-
-/* Class Nfa and conversion from NFA to DFA ---------------------------
-
-  A nondeterministic finite automaton (NFA) is represented as a
-  Map from state number (int) to a List of Transitions, a
-  Transition being a pair of a label lab (a String, null meaning
-  epsilon) and a target state (an int).
-
-  A DFA is created from an NFA in two steps:
-
-    (1) Construct a DFA whose each of whose states is composite,
-        namely a set of NFA states (Set of int).  This is done by
-        methods CompositeDfaTrans and EpsilonClose.
-
-    (2) Replace composite states (Set of int) by simple states
-        (int).  This is done by methods Rename and MkRenamer.
-
-  Method CompositeDfaTrans works as follows: 
-
-    Create the epsilon-closure S0 (a Set of ints) of the start
-    state s0, and put it in a worklist (a Queue).  Create an
-    empty DFA transition relation, which is a Map from a
-    composite state (an epsilon-closed Set of ints) to a Map
-    from a label (a non-null String) to a composite state.
-
-    Repeatedly choose a composite state S from the worklist.  If it is
-    not already in the keyset of the DFA transition relation, compute
-    for every non-epsilon label lab the set T of states reachable by
-    that label from some state s in S.  Compute the epsilon-closure
-    Tclose of every such state T and put it on the worklist.  Then add
-    the transition S -lab-> Tclose to the DFA transition relation, for
-    every lab.
-
-  Method EpsilonClose works as follows: 
-
-    Given a set S of states.  Put the states of S in a worklist.
-    Repeatedly choose a state s from the worklist, and consider all
-    epsilon-transitions s -eps-> s' from s.  If s' is in S already,
-    then do nothing; otherwise add s' to S and the worklist.  When the
-    worklist is empty, S is epsilon-closed; return S.
-
-  Method MkRenamer works as follows: 
-
-    Given a Map from Set of int to something, create an
-    injective Map from Set of int to int, by choosing a fresh
-    int for every value of the map.
-
-  Method Rename works as follows:
-
-    Given a Map from Set of int to Map from String to Set of
-    int, use the result of MkRenamer to replace all Sets of ints
-    by ints.
-
-*/
-
-
-class Nfa {
-  private readonly int startState;
-  private readonly int exitState;    // This is the unique accept state
-  private readonly IDictionary<int,List<Transition>> trans;
-
-  public Nfa(int startState, int exitState) {
-    this.startState = startState; this.exitState = exitState;
-    trans = new Dictionary<int,List<Transition>>();
-    if (!startState.Equals(exitState))
-      trans.Add(exitState, new List<Transition>());
-  }
-
-  public int Start { get { return startState; } }
-
-  public int Exit { get { return exitState; } }
-
-  public IDictionary<int, List<Transition>> Trans { 
-    get { return trans; }
-  }
-
-  public void AddTrans(int s1, String lab, int s2) {
-    List<Transition> s1Trans;
-    if (trans.ContainsKey(s1)) 
-      s1Trans = trans[s1];
-    else {
-      s1Trans = new List<Transition>();
-      trans.Add(s1, s1Trans);
-    }
-    s1Trans.Add(new Transition(lab, s2));
-  }
-
-  public void AddTrans(KeyValuePair<int, List<Transition>> tr) {
-    // Assumption: if tr is in trans, it maps to an empty list (end state)
-    trans.Remove(tr.Key);
-    trans.Add(tr.Key, tr.Value);
-  }
-
-  public override String ToString() {
-    return "NFA start=" + startState + " exit=" + exitState;
-  }
-
-  // Construct the transition relation of a composite-state DFA
-  // from an NFA with start state s0 and transition relation
-  // trans (a Map from int to List of Transition).  The start
-  // state of the constructed DFA is the epsilon closure of s0,
-  // and its transition relation is a Map from a composite state
-  // (a Set of ints) to a Map from label (a String) to a
-  // composite state (a Set of ints).
-
-  static IDictionary<Set<int>, IDictionary<String, Set<int>>>
-    CompositeDfaTrans(int s0, IDictionary<int, List<Transition>> trans) {
-    Set<int> S0 = EpsilonClose(new Set<int>(s0), trans);
-    Queue<Set<int>> worklist = new Queue<Set<int>>();
-    worklist.Enqueue(S0);
-    // The transition relation of the DFA
-    IDictionary<Set<int>, IDictionary<String, Set<int>>> res = 
-      new Dictionary<Set<int>, IDictionary<String, Set<int>>>(); 
-    while (worklist.Count != 0) {
-      Set<int> S = worklist.Dequeue();
-      if (!res.ContainsKey(S)) {
-        // The S -lab-> T transition relation being constructed for a given S
-        IDictionary<String, Set<int>> STrans = 
-	  new Dictionary<String, Set<int>>(); 
-        // For all s in S, consider all transitions s -lab-> t
-	foreach (int s in S) {
-          // For all non-epsilon transitions s -lab-> t, add t to T
-	  foreach (Transition tr in trans[s]) {
-            if (tr.lab != null) {       // Already a transition on lab
-              Set<int> toState; 
-              if (STrans.ContainsKey(tr.lab)) 
-                toState = STrans[tr.lab];
-              else {                    // No transitions on lab yet
-                toState = new Set<int>();
-                STrans.Add(tr.lab, toState);
-              }
-              toState.Add(tr.target);
-            }
-          }
-        }
-        // Epsilon-close all T such that S -lab-> T, and put on worklist
-        Dictionary<String, Set<int>> STransClosed = 
-          new Dictionary<String, Set<int> >();
-	foreach (KeyValuePair<String, Set<int>> entry in STrans) {
-          Set<int> Tclose = EpsilonClose(entry.Value, trans);
-          STransClosed.Add(entry.Key, Tclose);
-          worklist.Enqueue(Tclose);
-        }
-        res.Add(S, STransClosed);
-      }
-    }
-    return res;
-  }  
-
-  // Compute epsilon-closure of state set S in transition relation trans.  
-
-  static Set<int> 
-    EpsilonClose(Set<int> S, IDictionary<int, List<Transition>> trans) {
-    // The worklist initially contains all S members
-    Queue<int> worklist = new Queue<int>(S);
-    Set<int> res = new Set<int>(S);
-    while (worklist.Count != 0) {
-      int s = worklist.Dequeue();
-      foreach (Transition tr in trans[s]) {
-        if (tr.lab == null && !res.Contains(tr.target)) {
-          res.Add(tr.target);
-          worklist.Enqueue(tr.target);
-        }
-      }
-    }
-    return res;
-  }
-
-  // Compute a renamer, which is a Map from Set of int to int
-
-  static IDictionary<Set<int>, int> MkRenamer(ICollection<Set<int>> states) {
-    IDictionary<Set<int>, int> renamer = new Dictionary<Set<int>, int>();
-    int count = 0;
-    foreach (Set<int> k in states) 
-      renamer.Add(k, count++);
-    return renamer;
-  }
-
-  // Using a renamer (a Map from Set of int to int), replace
-  // composite (Set of int) states with simple (int) states in
-  // the transition relation trans, which is assumed to be a Map
-  // from Set of int to Map from String to Set of int.  The
-  // result is a Map from int to Map from String to int.
-
-  static IDictionary<int, IDictionary<String, int>>
-    Rename(IDictionary<Set<int>, int> renamer, 
-           IDictionary<Set<int>, IDictionary<String, Set<int>>> trans) {
-    IDictionary<int, IDictionary<String, int>> newtrans = 
-      new Dictionary<int, IDictionary<String, int>>();
-    foreach (KeyValuePair<Set<int>, IDictionary<String, Set<int>>> entry 
-	     in trans) {
-      Set<int> k = entry.Key;
-      IDictionary<String, int> newktrans = new Dictionary<String, int>();
-      foreach (KeyValuePair<String, Set<int>> tr in entry.Value) 
-        newktrans.Add(tr.Key, renamer[tr.Value]);
-      newtrans.Add(renamer[k], newktrans);
-    }
-    return newtrans;
-  }
-
-  static Set<int> AcceptStates(ICollection<Set<int>> states, 
-			       IDictionary<Set<int>, int> renamer,
-			       int exit) {
-    Set<int> acceptStates = new Set<int>();
-    foreach (Set<int> state in states) 
-      if (state.Contains(exit)) 
-        acceptStates.Add(renamer[state]);
-    return acceptStates;
-  }
-
-  public Dfa ToDfa() {
-    IDictionary<Set<int>, IDictionary<String, Set<int>>> 
-      cDfaTrans = CompositeDfaTrans(startState, trans);
-    Set<int> cDfaStart = EpsilonClose(new Set<int>(startState), trans);
-    ICollection<Set<int>> cDfaStates = cDfaTrans.Keys;
-    IDictionary<Set<int>, int> renamer = MkRenamer(cDfaStates);
-    IDictionary<int, IDictionary<String, int>> simpleDfaTrans = 
-      Rename(renamer, cDfaTrans);
-    int simpleDfaStart = renamer[cDfaStart];
-    Set<int> simpleDfaAccept = AcceptStates(cDfaStates, renamer, exitState);
-    return new Dfa(simpleDfaStart, simpleDfaAccept, simpleDfaTrans);
-  }
-
-  // Nested class for creating distinctly named states when constructing NFAs
-
-  public class NameSource {
-    private static int nextName = 0;
-
-    public int next() { 
-      return nextName++; 
-    }
-  }
-}
-
-// Class Transition, a transition from one state to another ----------
-
-  public class Transition {
-    public String lab;
-    public int target;
-    
-    public Transition(String lab, int target) { 
-      this.lab = lab; this.target = target; 
-    }
-    
-    public override String ToString() {
-      return "-" + lab + "-> " + target;
-    }
-  }
-
-// Class Dfa, deterministic finite automata --------------------------
-
-/*
-  A deterministic finite automaton (DFA) is represented as a Map
-  from state number (int) to a Map from label (a String,
-  non-null) to a target state (an int).  
-*/
-
-class Dfa {
-  private readonly int startState;
-  private readonly Set<int> acceptStates;
-  private readonly IDictionary<int, IDictionary<String,int>> trans;
-
-  public Dfa(int startState, Set<int> acceptStates, 
-	     IDictionary<int, IDictionary<String,int>> trans) {
-    this.startState = startState; 
-    this.acceptStates = acceptStates;
-    this.trans = trans;
-  }
-  
-  public int Start { get { return startState; } }
-
-  public Set<int> Accept { get { return acceptStates; } }
-
-  public IDictionary<int, IDictionary<String,int>> Trans { 
-    get { return trans; }
-  }
-
-  public override String ToString() {
-    return "DFA start=" + startState + "\naccept=" + acceptStates;
-  }
-
-  // Write an input file for the dot program.  You can find dot at
-  // http://www.research.att.com/sw/tools/graphviz/
-
-  public void WriteDot(String filename) {
-    TextWriter wr = 
-      new StreamWriter(new FileStream(filename, FileMode.Create, 
-                                      FileAccess.Write));
-    wr.WriteLine("// Format this file as a Postscript file with ");
-    wr.WriteLine("//    dot " + filename + " -Tps -o out.ps\n");
-    wr.WriteLine("digraph dfa {");
-    wr.WriteLine("size=\"11,8.25\";");
-    wr.WriteLine("rotate=90;");
-    wr.WriteLine("rankdir=LR;");
-    wr.WriteLine("n999999 [style=invis];");    // Invisible start node
-    wr.WriteLine("n999999 -> n" + startState); // Edge into start state
-    
-    // Accept states are double circles
-    foreach (int state in trans.Keys) 
-      if (acceptStates.Contains(state))
-        wr.WriteLine("n" + state + " [peripheries=2];");
-
-    // The transitions 
-    foreach (KeyValuePair<int, IDictionary<String, int>> entry in trans) {
-      int s1 = entry.Key;
-      foreach (KeyValuePair<String, int> s1Trans in entry.Value) {
-        String lab = s1Trans.Key;
-        int s2 = s1Trans.Value;
-        wr.WriteLine("n" + s1 + " -> n" + s2 + " [label=\"" + lab + "\"];");
-      }
-    }
-    wr.WriteLine("}");
-    wr.Close();
-  }
-}
-
-// Regular expressions ----------------------------------------------
-//
-// Abstract syntax of regular expressions
-//    r ::= A | r1 r2 | (r1|r2) | r*
-//
-
-abstract class Regex { 
-  abstract public Nfa MkNfa(Nfa.NameSource names);
-}
-
-class Eps : Regex {
-  // The resulting nfa0 has form s0s -eps-> s0e
-
-  public override Nfa MkNfa(Nfa.NameSource names) {
-    int s0s = names.next();
-    int s0e = names.next();
-    Nfa nfa0 = new Nfa(s0s, s0e);
-    nfa0.AddTrans(s0s, null, s0e);
-    return nfa0;
-  }
-}
-
-class Sym : Regex {
-  String sym;
-
-  public Sym(String sym) { 
-    this.sym = sym; 
-  }
-
-  // The resulting nfa0 has form s0s -sym-> s0e
-
-  public override Nfa MkNfa(Nfa.NameSource names) {
-    int s0s = names.next();
-    int s0e = names.next();
-    Nfa nfa0 = new Nfa(s0s, s0e);
-    nfa0.AddTrans(s0s, sym, s0e);
-    return nfa0;
-  }
-}
-
-class Seq : Regex {
-  Regex r1, r2;
-
-  public Seq(Regex r1, Regex r2) {
-    this.r1 = r1; this.r2 = r2;
-  }
-
-  // If   nfa1 has form s1s ----> s1e 
-  // and  nfa2 has form s2s ----> s2e 
-  // then nfa0 has form s1s ----> s1e -eps-> s2s ----> s2e
-
-  public override Nfa MkNfa(Nfa.NameSource names) {
-    Nfa nfa1 = r1.MkNfa(names);
-    Nfa nfa2 = r2.MkNfa(names);
-    Nfa nfa0 = new Nfa(nfa1.Start, nfa2.Exit);
-    foreach (KeyValuePair<int, List<Transition>> entry in nfa1.Trans) 
-      nfa0.AddTrans(entry);
-    foreach (KeyValuePair<int, List<Transition>> entry in nfa2.Trans) 
-      nfa0.AddTrans(entry);
-    nfa0.AddTrans(nfa1.Exit, null, nfa2.Start);
-    return nfa0;
-  }
-}
-
-class Alt : Regex {
-  Regex r1, r2;
-
-  public Alt(Regex r1, Regex r2) {
-    this.r1 = r1; this.r2 = r2;
-  }
-
-  // If   nfa1 has form s1s ----> s1e 
-  // and  nfa2 has form s2s ----> s2e 
-  // then nfa0 has form s0s -eps-> s1s ----> s1e -eps-> s0e
-  //                    s0s -eps-> s2s ----> s2e -eps-> s0e
-
-  public override Nfa MkNfa(Nfa.NameSource names) {
-    Nfa nfa1 = r1.MkNfa(names);
-    Nfa nfa2 = r2.MkNfa(names);
-    int s0s = names.next();
-    int s0e = names.next();
-    Nfa nfa0 = new Nfa(s0s, s0e);
-    foreach (KeyValuePair<int, List<Transition>> entry in nfa1.Trans) 
-      nfa0.AddTrans(entry);
-    foreach (KeyValuePair<int, List<Transition>> entry in nfa2.Trans) 
-      nfa0.AddTrans(entry);
-    nfa0.AddTrans(s0s, null, nfa1.Start);
-    nfa0.AddTrans(s0s, null, nfa2.Start);
-    nfa0.AddTrans(nfa1.Exit, null, s0e);
-    nfa0.AddTrans(nfa2.Exit, null, s0e);
-    return nfa0;
-  }
-}
-
-class Star : Regex {
-  Regex r;
-
-  public Star(Regex r) {
-    this.r = r; 
-  }
-
-  // If   nfa1 has form s1s ----> s1e 
-  // then nfa0 has form s0s ----> s0s
-  //                    s0s -eps-> s1s
-  //                    s1e -eps-> s0s
-
-  public override Nfa MkNfa(Nfa.NameSource names) {
-    Nfa nfa1 = r.MkNfa(names);
-    int s0s = names.next();
-    Nfa nfa0 = new Nfa(s0s, s0s);
-    foreach (KeyValuePair<int, List<Transition>> entry in nfa1.Trans) 
-      nfa0.AddTrans(entry);
-    nfa0.AddTrans(s0s, null, nfa1.Start);
-    nfa0.AddTrans(nfa1.Exit, null, s0s);
-    return nfa0;
-  }
-}
-
-// Trying the RE->NFA->DFA translation on three regular expressions
-
-class TestNFA {
-  public static void Main(String[] args) {
-    Regex a = new Sym("A");
-    Regex b = new Sym("B");
-    Regex c = new Sym("C");
-    Regex abStar = new Star(new Alt(a, b));
-    Regex bb = new Seq(b, b);
-    Regex r = new Seq(abStar, new Seq(a, b));
-    // The regular expression (a|b)*ab
-    BuildAndShow("dfa1.dot", r);
-    // The regular expression ((a|b)*ab)*
-    BuildAndShow("dfa2.dot", new Star(r));
-    // The regular expression ((a|b)*ab)((a|b)*ab)
-    BuildAndShow("dfa3.dot", new Seq(r, r));
-    // The regular expression (a|b)*abb, from ASU 1986 p 136
-    BuildAndShow("dfa4.dot", new Seq(abStar, new Seq(a, bb)));
-    // SML reals: sign?((digit+(\.digit+)?))([eE]sign?digit+)?
-    Regex d = new Sym("digit");
-    Regex dPlus = new Seq(d, new Star(d));
-    Regex s = new Sym("sign");
-    Regex sOpt = new Alt(s, new Eps());
-    Regex dot = new Sym(".");
-    Regex dotDigOpt = new Alt(new Eps(), new Seq(dot, dPlus));
-    Regex mant = new Seq(sOpt, new Seq(dPlus, dotDigOpt));
-    Regex e = new Sym("e");
-    Regex exp = new Alt(new Eps(), new Seq(e, new Seq(sOpt, dPlus)));
-    Regex smlReal = new Seq(mant, exp);
-    BuildAndShow("dfa5.dot", smlReal);
-  }
-
-  public static void BuildAndShow(String filename, Regex r) {
-    Nfa nfa = r.MkNfa(new Nfa.NameSource());
-    Console.WriteLine(nfa);
-    Console.WriteLine("---");
-    Dfa dfa = nfa.ToDfa();
-    Console.WriteLine(dfa);
-    Console.WriteLine("Writing DFA graph to file " + filename);
-    dfa.WriteDot(filename);
-    Console.WriteLine();
-  }
-}
diff --git a/resources/literature/J00-1005.pdf b/resources/literature/J00-1005.pdf
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diff --git a/resources/literature/RENFADFA.doc b/resources/literature/RENFADFA.doc
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index fb76173..0000000
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diff --git a/resources/literature/compactdfa.pdf b/resources/literature/compactdfa.pdf
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index 0000000..2b7d75a
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diff --git a/resources/literature/epsilonmoves.pdf b/resources/literature/epsilonmoves.pdf
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