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1
2 namespace Implab.Automaton {
3 public static class DFAConst {
4 public const int UNREACHABLE_STATE = -1;
5
6 public const int UNCLASSIFIED_INPUT = 0;
7 }
8 }
9
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1 using Implab;
2 using System;
3 using System.Collections.Generic;
4 using System.Diagnostics;
5 using System.Linq;
6
7 namespace Implab.Automaton.RegularExpressions {
8 /// <summary>
9 /// </summary>
10 public class RegularExpressionVisitor<TTag> : RegularExpressionVisitor {
11 readonly Dictionary<int, TTag> m_tags = new Dictionary<int, TTag>();
12
13 readonly ITaggedDFABuilder<TTag> m_builder;
14
15 public RegularExpressionVisitor(ITaggedDFABuilder<TTag> builder) : base(builder) {
16 m_builder = builder;
17 }
18
19 public override void Visit(EndToken token) {
20 base.Visit(token);
21 var tagged = token as EndToken<TTag>;
22 if (tagged != null)
23 m_tags.Add(Index, tagged.Tag);
24 }
25
26 protected override void MarkFinalState(HashSet<int> state) {
27 base.MarkFinalState(state);
28 m_builder.SetStateTag(Translate(state), GetStateTags(state));
29 }
30
31 TTag[] GetStateTags(IEnumerable<int> state) {
32 Debug.Assert(state != null);
33 return state.Where(m_tags.ContainsKey).Select(pos => m_tags[pos]).ToArray();
34 }
35
36 }
37 }
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1 using System;
2 using System.Threading;
3
4 namespace Implab.Components {
5 public class LazyAndWeak<T> where T : class {
6
7 readonly Func<T> m_factory;
8 readonly object m_lock;
9 WeakReference m_reference;
10
11
12 public LazyAndWeak(Func<T> factory, bool useLock) {
13 Safe.ArgumentNotNull(factory, "factory");
14 m_factory = factory;
15 m_lock = useLock ? new object() : null;
16 }
17
18 public LazyAndWeak(Func<T> factory) : this(factory, false) {
19 }
20
21 public T Value {
22 get {
23 while (true) {
24 var weak = m_reference;
25 T value;
26 if (weak != null) {
27 value = weak.Target as T;
28 if (value != null)
29 return value;
30 }
31
32 if (m_lock == null) {
33 value = m_factory();
34
35 if (Interlocked.CompareExchange(ref m_reference, new WeakReference(value), weak) == weak)
36 return value;
37 } else {
38 }
39 }
40 }
41 }
42 }
43 }
44
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1 1 using Implab;
2 2 using System;
3 3 using System.Collections.Generic;
4 4 using System.Linq;
5 5
6 6 namespace Implab.Automaton {
7 7 public class DFATable : IDFATableBuilder {
8 8 int m_stateCount;
9 9 int m_symbolCount;
10 10 int m_initialState;
11 11
12 12 readonly HashSet<int> m_finalStates = new HashSet<int>();
13 13 readonly HashSet<AutomatonTransition> m_transitions = new HashSet<AutomatonTransition>();
14 14
15 15
16 16 #region IDFADefinition implementation
17 17
18 18 public bool IsFinalState(int s) {
19 19 Safe.ArgumentInRange(s, 0, m_stateCount, "s");
20 20
21 21 return m_finalStates.Contains(s);
22 22 }
23 23
24 24 public IEnumerable<int> FinalStates {
25 25 get {
26 26 return m_finalStates;
27 27 }
28 28 }
29 29
30 30 public int StateCount {
31 31 get { return m_stateCount; }
32 32 }
33 33
34 34 public int AlphabetSize {
35 35 get { return m_symbolCount; }
36 36 }
37 37
38 38 public int InitialState {
39 39 get { return m_initialState; }
40 40 }
41 41
42 42 #endregion
43 43
44 44 public void SetInitialState(int s) {
45 45 Safe.ArgumentAssert(s >= 0, "s");
46 46 m_initialState = s;
47 47 }
48 48
49 49 public void MarkFinalState(int state) {
50 50 m_finalStates.Add(state);
51 51 }
52 52
53 53 public void Add(AutomatonTransition item) {
54 54 Safe.ArgumentAssert(item.s1 >= 0, "item");
55 55 Safe.ArgumentAssert(item.s2 >= 0, "item");
56 56 Safe.ArgumentAssert(item.edge >= 0, "item");
57 57
58 58 m_stateCount = Math.Max(m_stateCount, Math.Max(item.s1, item.s2) + 1);
59 59 m_symbolCount = Math.Max(m_symbolCount, item.edge);
60 60
61 61 m_transitions.Add(item);
62 62 }
63 63
64 64 public void Clear() {
65 65 m_stateCount = 0;
66 66 m_symbolCount = 0;
67 67 m_finalStates.Clear();
68 68 m_transitions.Clear();
69 69 }
70 70
71 71 public bool Contains(AutomatonTransition item) {
72 72 return m_transitions.Contains(item);
73 73 }
74 74
75 75 public void CopyTo(AutomatonTransition[] array, int arrayIndex) {
76 76 m_transitions.CopyTo(array, arrayIndex);
77 77 }
78 78
79 79 public bool Remove(AutomatonTransition item) {
80 80 m_transitions.Remove(item);
81 81 }
82 82
83 83 public int Count {
84 84 get {
85 85 return m_transitions.Count;
86 86 }
87 87 }
88 88
89 89 public bool IsReadOnly {
90 90 get {
91 91 return false;
92 92 }
93 93 }
94 94
95 95 public IEnumerator<AutomatonTransition> GetEnumerator() {
96 96 return m_transitions.GetEnumerator();
97 97 }
98 98
99 99 System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() {
100 100 return GetEnumerator();
101 101 }
102 102
103 103 public int[,] CreateTransitionTable() {
104 104 var table = new int[StateCount,AlphabetSize];
105 105
106 106 for (int i = 0; i < StateCount; i++)
107 107 for (int j = 0; i < AlphabetSize; j++)
108 table[i, j] = DFAConst.UNREACHABLE_STATE;
108 table[i, j] = AutomatonConst.UNREACHABLE_STATE;
109 109
110 110 foreach (var t in this)
111 111 table[t.s1,t.edge] = t.s2;
112 112
113 113 return table;
114 114 }
115 115
116 116 public bool[] CreateFinalStateTable() {
117 117 var table = new bool[StateCount];
118 118
119 119 foreach (var s in FinalStates)
120 120 table[s] = true;
121 121
122 122 return table;
123 123 }
124 124
125 125 /// <summary>Формирует множества конечных состояний перед началом работы алгоритма минимизации.</summary>
126 126 /// <remarks>
127 127 /// В процессе построения минимального автомата требуется разделить множество состояний,
128 128 /// на два подмножества - конечные состояния и все остальные, после чего эти подмножества
129 129 /// будут резделены на более мелкие. Иногда требуется гарантировать различия конечных сосотяний,
130 130 /// для этого необходимо переопределить даннцю фукнцию, для получения множеств конечных состояний.
131 131 /// </remarks>
132 132 /// <returns>The final states.</returns>
133 133 protected virtual IEnumerable<HashSet<int>> GroupFinalStates() {
134 134 return new HashSet<int>[] { m_finalStates };
135 135 }
136 136
137 137 protected void Optimize(
138 138 IDFATableBuilder optimalDFA,
139 139 IDictionary<int,int> alphabetMap,
140 140 IDictionary<int,int> stateMap
141 141 ) {
142 142 Safe.ArgumentNotNull(optimalDFA, "dfa");
143 143 Safe.ArgumentNotNull(alphabetMap, "alphabetMap");
144 144 Safe.ArgumentNotNull(stateMap, "stateMap");
145 145
146 146
147 147 var setComparer = new CustomEqualityComparer<HashSet<int>>(
148 148 (x, y) => x.SetEquals(y),
149 149 s => s.Sum(x => x.GetHashCode())
150 150 );
151 151
152 152 var optimalStates = new HashSet<HashSet<int>>(setComparer);
153 153 var queue = new HashSet<HashSet<int>>(setComparer);
154 154
155 155 // получаем конечные состояния, сгруппированные по маркерам
156 156 optimalStates.UnionWith(
157 157 GroupFinalStates()
158 158 );
159 159
160 160 var state = new HashSet<int>(
161 161 Enumerable
162 162 .Range(0, m_stateCount - 1)
163 163 .Where(i => !m_finalStates.Contains(i))
164 164 );
165 165
166 166 optimalStates.Add(state);
167 167 queue.Add(state);
168 168
169 169 var rmap = m_transitions
170 170 .GroupBy(t => t.s2)
171 171 .ToLookup(
172 172 g => g.Key, // s2
173 173 g => g.ToLookup(t => t.edge, t => t.s1)
174 174 );
175 175
176 176 while (queue.Count > 0) {
177 177 var stateA = queue.First();
178 178 queue.Remove(stateA);
179 179
180 180 for (int c = 0; c < m_symbolCount; c++) {
181 181 var stateX = new HashSet<int>();
182 182 foreach(var a in stateA)
183 183 stateX.UnionWith(rmap[a][c]); // all states from wich 'c' leads to 'a'
184 184
185 185 foreach (var stateY in optimalStates.ToArray()) {
186 186 if (stateX.Overlaps(stateY) && !stateY.IsSubsetOf(stateX)) {
187 187 var stateR1 = new HashSet<int>(stateY);
188 188 var stateR2 = new HashSet<int>(stateY);
189 189
190 190 stateR1.IntersectWith(stateX);
191 191 stateR2.ExceptWith(stateX);
192 192
193 193 optimalStates.Remove(stateY);
194 194 optimalStates.Add(stateR1);
195 195 optimalStates.Add(stateR2);
196 196
197 197 if (queue.Contains(stateY)) {
198 198 queue.Remove(stateY);
199 199 queue.Add(stateR1);
200 200 queue.Add(stateR2);
201 201 } else {
202 202 queue.Add(stateR1.Count <= stateR2.Count ? stateR1 : stateR2);
203 203 }
204 204 }
205 205 }
206 206 }
207 207 }
208 208
209 209 // карта получения оптимального состояния по соотвествующему ему простому состоянию
210 210 var nextState = 0;
211 211 foreach (var item in optimalStates) {
212 212 var id = nextState++;
213 213 foreach (var s in item)
214 214 stateMap[s] = id;
215 215 }
216 216
217 217 // получаем минимальный алфавит
218 218 // входные символы не различимы, если Move(s,a1) == Move(s,a2), для любого s
219 219 // для этого используем алгоритм кластеризации, сначала
220 220 // считаем, что все символы не различимы
221 221
222 222 var minClasses = new HashSet<HashSet<int>>(setComparer);
223 223 var alphaQueue = new Queue<HashSet<int>>();
224 224 alphaQueue.Enqueue(new HashSet<int>(Enumerable.Range(0,AlphabetSize)));
225 225
226 226 // для всех состояний, будем проверять каждый класс на различимость,
227 227 // т.е. символы различимы, если они приводят к разным состояниям
228 228 for (int s = 0 ; s < optimalStates.Count; s++) {
229 229 var newQueue = new Queue<HashSet<int>>();
230 230
231 231 foreach (var A in alphaQueue) {
232 232 // классы из одного символа делить бесполезно, переводим их сразу в
233 233 // результирующий алфавит
234 234 if (A.Count == 1) {
235 235 minClasses.Add(A);
236 236 continue;
237 237 }
238 238
239 239 // различаем классы символов, которые переводят в различные оптимальные состояния
240 240 // optimalState -> alphaClass
241 241 var classes = new Dictionary<int, HashSet<int>>();
242 242
243 243 foreach (var term in A) {
244 244 // ищем все переходы класса по символу term
245 245 var res = m_transitions.Where(t => stateMap[t.s1] == s && t.edge == term).Select(t => stateMap[t.s2]).ToArray();
246 246
247 247 var s2 = res.Length > 0 ? res[0] : -1;
248 248
249 249 HashSet<int> a2;
250 250 if (!classes.TryGetValue(s2, out a2)) {
251 251 a2 = new HashSet<int>();
252 252 newQueue.Enqueue(a2);
253 253 classes[s2] = a2;
254 254 }
255 255 a2.Add(term);
256 256 }
257 257 }
258 258
259 259 if (newQueue.Count == 0)
260 260 break;
261 261 alphaQueue = newQueue;
262 262 }
263 263
264 264 // после окончания работы алгоритма в очереди останутся минимальные различимые классы
265 265 // входных символов
266 266 foreach (var A in alphaQueue)
267 267 minClasses.Add(A);
268 268
269 269 // построение отображения алфавитов входных символов.
270 270 // поскольку символ DFAConst.UNCLASSIFIED_INPUT может иметь
271 271 // специальное значение, тогда сохраним минимальный класс,
272 272 // содержащий этот символ на томже месте.
273 273
274 274 var nextCls = 0;
275 275 foreach (var item in minClasses) {
276 if (nextCls == DFAConst.UNCLASSIFIED_INPUT)
276 if (nextCls == AutomatonConst.UNCLASSIFIED_INPUT)
277 277 nextCls++;
278 278
279 279 // сохраняем DFAConst.UNCLASSIFIED_INPUT
280 var cls = item.Contains(DFAConst.UNCLASSIFIED_INPUT) ? DFAConst.UNCLASSIFIED_INPUT : nextCls;
280 var cls = item.Contains(AutomatonConst.UNCLASSIFIED_INPUT) ? AutomatonConst.UNCLASSIFIED_INPUT : nextCls;
281 281
282 282 foreach (var a in item)
283 283 alphabetMap[a] = cls;
284 284
285 285 nextCls++;
286 286 }
287 287
288 288 // построение автомата
289 289 optimalDFA.SetInitialState(stateMap[m_initialState]);
290 290
291 291 foreach (var sf in m_finalStates.Select(s => stateMap[s]).Distinct())
292 292 optimalDFA.MarkFinalState(sf);
293 293
294 294 foreach (var t in m_transitions.Select(t => new AutomatonTransition(stateMap[t.s1],stateMap[t.s2],alphabetMap[t.edge])).Distinct())
295 295 optimalDFA.Add(t);
296 296 }
297 297
298 298 protected void PrintDFA<TInput, TState>(IAlphabet<TInput> inputAlphabet, IAlphabet<TState> stateAlphabet) {
299 299 Safe.ArgumentNotNull(inputAlphabet, "inputAlphabet");
300 300 Safe.ArgumentNotNull(stateAlphabet, "stateAlphabet");
301 301
302 302 foreach(var t in m_transitions)
303 303 Console.WriteLine(
304 304 "[{0}] -{{{1}}}-> [{2}]{3}",
305 305 String.Join(",", stateAlphabet.GetSymbols(t.s1)),
306 306 String.Join("", inputAlphabet.GetSymbols(t.edge)),
307 307 String.Join(",", stateAlphabet.GetSymbols(t.s2)),
308 308 m_finalStates.Contains(t.s2) ? "$" : ""
309 309 );
310 310 }
311 311
312 312 }
313 313 }
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@@ -1,84 +1,84
1 1 using System;
2 2 using System.Collections.Generic;
3 3 using System.Linq;
4 4
5 5 namespace Implab.Automaton {
6 6 public class MapAlphabet<T> : IAlphabetBuilder<T> {
7 7 readonly Dictionary<T,int> m_map;
8 8 int m_nextCls;
9 9 readonly bool m_supportUnclassified;
10 10
11 11 public MapAlphabet(bool supportUnclassified, IEqualityComparer<T> comparer) {
12 12 m_map = comparer != null ? new Dictionary<T, int>(comparer) : new Dictionary<T,int>();
13 13 m_supportUnclassified = supportUnclassified;
14 14 m_nextCls = supportUnclassified ? 1 : 0;
15 15 }
16 16
17 17 #region IAlphabetBuilder implementation
18 18
19 19 public int DefineSymbol(T symbol) {
20 20 int cls;
21 21 return m_map.TryGetValue(symbol, out cls) ? cls : DefineSymbol(symbol, m_nextCls);
22 22 }
23 23
24 24 public int DefineSymbol(T symbol, int cls) {
25 25 Safe.ArgumentAssert(cls >= 0, "cls");
26 26
27 27 m_nextCls = Math.Max(cls + 1, m_nextCls);
28 28 m_map.Add(symbol, cls);
29 29 return cls;
30 30 }
31 31
32 32 public int DefineClass(IEnumerable<T> symbols) {
33 33 return DefineClass(symbols, m_nextCls);
34 34 }
35 35
36 36 public int DefineClass(IEnumerable<T> symbols, int cls) {
37 37 Safe.ArgumentAssert(cls >= 0, "cls");
38 38 Safe.ArgumentNotNull(symbols, "symbols");
39 39
40 40 m_nextCls = Math.Max(cls + 1, m_nextCls);
41 41
42 42 foreach (var symbol in symbols)
43 43 m_map[symbol] = cls;
44 44 return cls;
45 45 }
46 46
47 47 #endregion
48 48
49 49 #region IAlphabet implementation
50 50
51 51 public int Translate(T symbol) {
52 52 int cls;
53 53 if (m_map.TryGetValue(symbol, out cls))
54 54 return cls;
55 55 if (!m_supportUnclassified)
56 56 throw new ArgumentOutOfRangeException("symbol", "The specified symbol isn't in the alphabet");
57 return DFAConst.UNCLASSIFIED_INPUT;
57 return AutomatonConst.UNCLASSIFIED_INPUT;
58 58 }
59 59
60 60 public int Count {
61 61 get {
62 62 return m_nextCls;
63 63 }
64 64 }
65 65
66 66 public bool Contains(T symbol) {
67 67 return m_supportUnclassified || m_map.ContainsKey(symbol);
68 68 }
69 69
70 70
71 71 public IEnumerable<T> GetSymbols(int cls) {
72 72 Safe.ArgumentAssert(cls > 0, "cls");
73 73 return m_map.Where(p => p.Value == cls).Select(p => p.Key);
74 74 }
75 75 #endregion
76 76
77 77 public IEnumerable<KeyValuePair<T,int>> Mappings {
78 78 get {
79 79 return m_map;
80 80 }
81 81 }
82 82 }
83 83 }
84 84
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@@ -1,33 +1,23
1 using Implab;
2
3 namespace Implab.Automaton.RegularExpressions {
1 namespace Implab.Automaton.RegularExpressions {
4 2 /// <summary>
5 3 /// Конечный символ расширенного регулярного выражения, при построении ДКА
6 4 /// используется для определения конечных состояний.
7 5 /// </summary>
8 public class EndToken<TTag>: Token {
6 public class EndToken<TTag>: EndToken {
9 7
10 TTag m_tag;
8 readonly TTag m_tag;
11 9
12 10 public EndToken(TTag tag) {
13 11 m_tag = tag;
14 12 }
15 13
16 14 public EndToken()
17 15 : this(default(TTag)) {
18 16 }
19 17
20 18 public TTag Tag {
21 19 get { return m_tag; }
22 20 }
23
24 public override void Accept(IVisitor visitor) {
25 Safe.ArgumentOfType(visitor, typeof(IVisitor<TTag>), "visitor");
26 Safe.ArgumentNotNull(visitor, "visitor");
27 ((IVisitor<TTag>)visitor).Visit(this);
28 }
29 public override string ToString() {
30 return "#";
31 }
21
32 22 }
33 23 }
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@@ -1,83 +1,83
1 1 using System.Collections.Generic;
2 2 using System.Linq;
3 3
4 4 namespace Implab.Automaton.RegularExpressions {
5 public class RegularDFA<TInput, TTag> : DFATable, ITaggedDFABuilder<TTag> {
5 public class TaggedDFA<TInput, TTag> : DFATable, ITaggedDFABuilder<TTag> {
6 6
7 7 readonly Dictionary<int,TTag[]> m_tags = new Dictionary<int, TTag[]>();
8 8 readonly IAlphabet<TInput> m_alphabet;
9 9
10 public RegularDFA(IAlphabet<TInput> alphabet) {
10 public TaggedDFA(IAlphabet<TInput> alphabet) {
11 11 Safe.ArgumentNotNull(alphabet, "aplhabet");
12 12
13 13 m_alphabet = alphabet;
14 14 }
15 15
16 16
17 17 public IAlphabet<TInput> InputAlphabet {
18 18 get {
19 19 return m_alphabet;
20 20 }
21 21 }
22 22
23 23 public void MarkFinalState(int s, TTag[] tags) {
24 24 MarkFinalState(s);
25 25 SetStateTag(s, tags);
26 26 }
27 27
28 28 public void SetStateTag(int s, TTag[] tags) {
29 29 Safe.ArgumentNotNull(tags, "tags");
30 30 m_tags[s] = tags;
31 31 }
32 32
33 33 public TTag[] GetStateTag(int s) {
34 34 TTag[] tags;
35 35 return m_tags.TryGetValue(s, out tags) ? tags : new TTag[0];
36 36 }
37 37
38 38 public TTag[][] CreateTagTable() {
39 39 var table = new TTag[StateCount][];
40 40
41 41 foreach (var pair in m_tags)
42 42 table[pair.Key] = pair.Value;
43 43
44 44 return table;
45 45 }
46 46
47 47 /// <summary>
48 48 /// Optimize the specified alphabet.
49 49 /// </summary>
50 50 /// <param name="alphabet">Пустой алфавит, который будет зполнен в процессе оптимизации.</param>
51 public RegularDFA<TInput,TTag> Optimize(IAlphabetBuilder<TInput> alphabet) {
51 public TaggedDFA<TInput,TTag> Optimize(IAlphabetBuilder<TInput> alphabet) {
52 52 Safe.ArgumentNotNull(alphabet, "alphabet");
53 53
54 var dfa = new RegularDFA<TInput, TTag>(alphabet);
54 var dfa = new TaggedDFA<TInput, TTag>(alphabet);
55 55
56 56 var states = new DummyAlphabet(StateCount);
57 57 var alphaMap = new Dictionary<int,int>();
58 58 var stateMap = new Dictionary<int,int>();
59 59
60 60 Optimize(dfa, alphaMap, stateMap);
61 61
62 62 // mark tags in the new DFA
63 63 foreach (var g in m_tags.Where(x => x.Key < StateCount).GroupBy(x => stateMap[x.Key], x => x.Value ))
64 64 dfa.SetStateTag(g.Key, g.SelectMany(x => x).ToArray());
65 65
66 66 // make the alphabet for the new DFA
67 67 foreach (var pair in alphaMap)
68 68 alphabet.DefineClass(m_alphabet.GetSymbols(pair.Key), pair.Value);
69 69
70 70 return dfa;
71 71 }
72 72
73 73 protected override IEnumerable<HashSet<int>> GroupFinalStates() {
74 74 var arrayComparer = new CustomEqualityComparer<TTag[]>(
75 75 (x,y) => x.Length == y.Length && x.All(it => y.Contains(it)),
76 76 x => x.Sum(it => x.GetHashCode())
77 77 );
78 78 return FinalStates.GroupBy(x => m_tags[x], arrayComparer).Select(g => new HashSet<int>(g));
79 79 }
80 80
81 81 }
82 82 }
83 83
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@@ -1,206 +1,212
1 1 using Implab;
2 2 using System;
3 3 using System.Collections.Generic;
4 4 using System.Diagnostics;
5 5 using System.Linq;
6 6
7 7 namespace Implab.Automaton.RegularExpressions {
8 8 /// <summary>
9 9 /// Используется для построения ДКА по регулярному выражению, сначала обходит
10 10 /// регулярное выражение и вычисляет followpos, затем используется метод
11 11 /// <see cref="BuildDFA(IDFADefinition)"/> для построения автомата.
12 12 /// </summary>
13 public class RegularExpressionVisitor<TTag> : IVisitor<TTag> {
13 public class RegularExpressionVisitor : IVisitor {
14 14 int m_idx;
15 15 Token m_root;
16 16 HashSet<int> m_firstpos;
17 17 HashSet<int> m_lastpos;
18 18
19 19 readonly Dictionary<int, HashSet<int>> m_followpos = new Dictionary<int, HashSet<int>>();
20 20 readonly Dictionary<int, int> m_indexes = new Dictionary<int, int>();
21 21 readonly HashSet<int> m_ends = new HashSet<int>();
22 readonly Dictionary<int, TTag> m_tags = new Dictionary<int, TTag>();
23 22
24 public Dictionary<int, HashSet<int>> FollowposMap {
25 get { return m_followpos; }
23 readonly IDFATableBuilder m_builder;
24 readonly IAlphabetBuilder<HashSet<int>> m_states = new MapAlphabet<HashSet<int>>(
25 false,
26 new CustomEqualityComparer<HashSet<int>>(
27 (x, y) => x.SetEquals(y),
28 x => x.Sum(n => n.GetHashCode())
29 )
30 );
31
32 public RegularExpressionVisitor(IDFATableBuilder builder) {
33 Safe.ArgumentNotNull(builder, "builder");
34
35 m_builder = builder;
26 36 }
27 37
28 public HashSet<int> Followpos(int pos) {
38 HashSet<int> Followpos(int pos) {
29 39 HashSet<int> set;
30 40 return m_followpos.TryGetValue(pos, out set) ? set : m_followpos[pos] = new HashSet<int>();
31 41 }
32 42
33 43 bool Nullable(object n) {
34 44 if (n is EmptyToken || n is StarToken)
35 45 return true;
36 46 var altToken = n as AltToken;
37 47 if (altToken != null)
38 48 return Nullable(altToken.Left) || Nullable(altToken.Right);
39 49 var catToken = n as CatToken;
40 50 if (catToken != null)
41 51 return Nullable(catToken.Left) && Nullable(catToken.Right);
42 52 return false;
43 53 }
44 54
55 protected int Index {
56 get { return m_idx; }
57 }
45 58
46 59 public void Visit(AltToken token) {
47 60 if (m_root == null)
48 61 m_root = token;
49 62 var firtspos = new HashSet<int>();
50 63 var lastpos = new HashSet<int>();
51 64
52 65 token.Left.Accept(this);
53 66 firtspos.UnionWith(m_firstpos);
54 67 lastpos.UnionWith(m_lastpos);
55 68
56 69 token.Right.Accept(this);
57 70 firtspos.UnionWith(m_firstpos);
58 71 lastpos.UnionWith(m_lastpos);
59 72
60 73 m_firstpos = firtspos;
61 74 m_lastpos = lastpos;
62 75 }
63 76
64 77 public void Visit(StarToken token) {
65 78 if (m_root == null)
66 79 m_root = token;
67 80 token.Token.Accept(this);
68 81
69 82 foreach (var i in m_lastpos)
70 83 Followpos(i).UnionWith(m_firstpos);
71 84 }
72 85
73 86 public void Visit(CatToken token) {
74 87 if (m_root == null)
75 88 m_root = token;
76 89
77 90 var firtspos = new HashSet<int>();
78 91 var lastpos = new HashSet<int>();
79 92 token.Left.Accept(this);
80 93 firtspos.UnionWith(m_firstpos);
81 94 var leftLastpos = m_lastpos;
82 95
83 96 token.Right.Accept(this);
84 97 lastpos.UnionWith(m_lastpos);
85 98 var rightFirstpos = m_firstpos;
86 99
87 100 if (Nullable(token.Left))
88 101 firtspos.UnionWith(rightFirstpos);
89 102
90 103 if (Nullable(token.Right))
91 104 lastpos.UnionWith(leftLastpos);
92 105
93 106 m_firstpos = firtspos;
94 107 m_lastpos = lastpos;
95 108
96 109 foreach (var i in leftLastpos)
97 110 Followpos(i).UnionWith(rightFirstpos);
98 111
99 112 }
100 113
101 114 public void Visit(EmptyToken token) {
102 115 if (m_root == null)
103 116 m_root = token;
104 117 }
105 118
106 119 public void Visit(SymbolToken token) {
107 120 if (m_root == null)
108 121 m_root = token;
109 122 m_idx++;
110 123 m_indexes[m_idx] = token.Value;
111 124 m_firstpos = new HashSet<int>(new[] { m_idx });
112 125 m_lastpos = new HashSet<int>(new[] { m_idx });
113 126 }
114 127
115 public void Visit(EndToken<TTag> token) {
128 public virtual void Visit(EndToken token) {
116 129 if (m_root == null)
117 130 m_root = token;
118 131 m_idx++;
119 m_indexes[m_idx] = DFAConst.UNCLASSIFIED_INPUT;
120 m_firstpos = new HashSet<int>(new[] { m_idx });
121 m_lastpos = new HashSet<int>(new[] { m_idx });
122 Followpos(m_idx);
123 m_ends.Add(m_idx);
124 m_tags.Add(m_idx, token.Tag);
125 }
126
127 public void Visit(EndToken token) {
128 if (m_root == null)
129 m_root = token;
130 m_idx++;
131 m_indexes[m_idx] = DFAConst.UNCLASSIFIED_INPUT;
132 m_indexes[m_idx] = AutomatonConst.UNCLASSIFIED_INPUT;
132 133 m_firstpos = new HashSet<int>(new[] { m_idx });
133 134 m_lastpos = new HashSet<int>(new[] { m_idx });
134 135 Followpos(m_idx);
135 136 m_ends.Add(m_idx);
136 137 }
137 138
138 public void BuildDFA(ITaggedDFABuilder<TTag> dfa) {
139 Safe.ArgumentNotNull(dfa,"dfa");
139 public void BuildDFA() {
140 AddState(m_firstpos);
141 SetInitialState(m_firstpos);
140 142
141 var states = new MapAlphabet<HashSet<int>>(
142 false,
143 new CustomEqualityComparer<HashSet<int>>(
144 (x, y) => x.SetEquals(y),
145 x => x.Sum(n => n.GetHashCode())
146 ));
147
148 var initialState = states.DefineSymbol(m_firstpos);
149 dfa.SetInitialState(initialState);
150
151 var tags = GetStateTags(m_firstpos);
152 if (tags != null && tags.Length > 0)
153 dfa.MarkFinalState(initialState, tags);
143 if(IsFinal(m_firstpos))
144 MarkFinalState(m_firstpos);
154 145
155 146 var inputMax = m_indexes.Values.Max();
156 147 var queue = new Queue<HashSet<int>>();
157 148
158 149 queue.Enqueue(m_firstpos);
159 150
160 151 while (queue.Count > 0) {
161 var state = queue.Dequeue();
162 var s1 = states.Translate(state);
163 Debug.Assert(s1 != DFAConst.UNCLASSIFIED_INPUT);
152 var s1 = queue.Dequeue();
164 153
165 154 for (int a = 0; a <= inputMax; a++) {
166 var next = new HashSet<int>();
167 foreach (var p in state) {
155 var s2 = new HashSet<int>();
156 foreach (var p in s1) {
168 157 if (m_indexes[p] == a) {
169 next.UnionWith(Followpos(p));
158 s2.UnionWith(Followpos(p));
170 159 }
171 160 }
172 if (next.Count > 0) {
173 int s2;
174 if (states.Contains(next)) {
175 s2 = states.Translate(next);
176 } else {
177 s2 = states.DefineSymbol(next);
161 if (s2.Count > 0) {
162 if (!HasState(s2)) {
163 AddState(s2);
164 if (IsFinal(s2))
165 MarkFinalState(s2);
166
167 queue.Enqueue(s2);
168 }
178 169
179 if (IsFinal(next)) {
180
181 dfa.MarkFinalState(s2);
182 tags = GetStateTags(next);
183 if (tags != null && tags.Length > 0)
184 dfa.SetStateTag(s2, tags);
185 }
186
187 queue.Enqueue(next);
188 }
189 dfa.Add(new AutomatonTransition(s1, s2, a));
170 DefineTransition(s1, s2, a);
190 171 }
172
191 173 }
192 174 }
193 175 }
194 176
177 protected bool HasState(HashSet<int> state) {
178 return m_states.Contains(state);
179 }
180
181 protected void AddState(HashSet<int> state) {
182 Debug.Assert(!HasState(state));
183
184 m_states.DefineSymbol(state);
185 }
186
187 protected int Translate(HashSet<int> state) {
188 Debug.Assert(HasState(state));
189
190 return m_states.Translate(state);
191 }
192
193 protected virtual void SetInitialState(HashSet<int> state) {
194 m_builder.SetInitialState(Translate(state));
195 }
196
197 protected virtual void MarkFinalState(HashSet<int> state) {
198 m_builder.MarkFinalState(Translate(state));
199 }
200
201 protected virtual void DefineTransition(HashSet<int> s1, HashSet<int> s2, int ch) {
202
203 m_builder.Add(new AutomatonTransition(Translate(s1), Translate(s2), ch));
204 }
205
195 206 bool IsFinal(IEnumerable<int> state) {
196 207 Debug.Assert(state != null);
197 208 return state.Any(m_ends.Contains);
198 209 }
199 210
200 TTag[] GetStateTags(IEnumerable<int> state) {
201 Debug.Assert(state != null);
202 return state.Where(m_tags.ContainsKey).Select(pos => m_tags[pos]).ToArray();
203 }
204
205 211 }
206 212 }
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@@ -1,63 +1,63
1 1 using Implab;
2 2 using System;
3 3 using System.Linq;
4 4
5 5 namespace Implab.Automaton.RegularExpressions {
6 6 public abstract class Token {
7 7 public abstract void Accept(IVisitor visitor);
8 8
9 public Token Extend() {
9 public Token End() {
10 10 return Cat(new EndToken());
11 11 }
12 12
13 13 public Token Tag<TTag>(TTag tag) {
14 14 return Cat(new EndToken<TTag>(tag));
15 15 }
16 16
17 17 public Token Cat(Token right) {
18 18 return new CatToken(this, right);
19 19 }
20 20
21 21 public Token Or(Token right) {
22 22 return new AltToken(this, right);
23 23 }
24 24
25 25 public Token Optional() {
26 26 return Or(new EmptyToken());
27 27 }
28 28
29 29 public Token EClosure() {
30 30 return new StarToken(this);
31 31 }
32 32
33 33 public Token Closure() {
34 34 return Cat(new StarToken(this));
35 35 }
36 36
37 37 public Token Repeat(int count) {
38 38 Token token = null;
39 39
40 40 for (int i = 0; i < count; i++)
41 41 token = token != null ? token.Cat(this) : this;
42 42 return token ?? new EmptyToken();
43 43 }
44 44
45 45 public Token Repeat(int min, int max) {
46 46 if (min > max || min < 1)
47 47 throw new ArgumentOutOfRangeException();
48 48 var token = Repeat(min);
49 49
50 50 for (int i = min; i < max; i++)
51 51 token = token.Cat( Optional() );
52 52 return token;
53 53 }
54 54
55 55 public static Token New(params int[] set) {
56 56 Safe.ArgumentNotNull(set, "set");
57 57 Token token = null;
58 58 foreach(var c in set.Distinct())
59 59 token = token == null ? new SymbolToken(c) : token.Or(new SymbolToken(c));
60 60 return token;
61 61 }
62 62 }
63 63 }
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@@ -1,100 +1,99
1 1 using Implab;
2 2 using System;
3 3 using System.Collections.Generic;
4 4 using System.Linq;
5 5 using Implab.Automaton;
6 6 using Implab.Automaton.RegularExpressions;
7 7
8 8 namespace Implab.Formats {
9 9 /// <summary>
10 10 /// Базовый абстрактный класс. Грамматика, позволяет формулировать выражения над алфавитом типа <c>char</c>.
11 11 /// </summary>
12 public abstract class Grammar<TSymbol, TTag> {
12 public abstract class Grammar<TSymbol> {
13 13
14 14 protected abstract IAlphabetBuilder<TSymbol> AlphabetBuilder {
15 15 get;
16 16 }
17 17
18 protected SymbolToken<TTag> UnclassifiedToken() {
19 return new SymbolToken<TTag>(DFAConst.UNCLASSIFIED_INPUT);
18 protected SymbolToken UnclassifiedToken() {
19 return new SymbolToken(AutomatonConst.UNCLASSIFIED_INPUT);
20 20 }
21 21
22 22 protected void DefineAlphabet(IEnumerable<TSymbol> alphabet) {
23 23 Safe.ArgumentNotNull(alphabet, "alphabet");
24 24
25 25 foreach (var ch in alphabet)
26 26 AlphabetBuilder.DefineSymbol(ch);
27 27 }
28 28
29 protected Token<TTag> SymbolToken(TSymbol symbol) {
30 return Token<TTag>.New(TranslateOrAdd(symbol));
29 protected Token SymbolToken(TSymbol symbol) {
30 return Token.New(TranslateOrAdd(symbol));
31 31 }
32 32
33 protected Token<TTag> SymbolToken(IEnumerable<TSymbol> symbols) {
33 protected Token SymbolToken(IEnumerable<TSymbol> symbols) {
34 34 Safe.ArgumentNotNull(symbols, "symbols");
35 35
36 return Token<TTag>.New(TranslateOrAdd(symbols).ToArray());
36 return Token.New(TranslateOrAdd(symbols).ToArray());
37 37 }
38 38
39 protected Token<TTag> SymbolSetToken(params TSymbol[] set) {
39 protected Token SymbolSetToken(params TSymbol[] set) {
40 40 return SymbolToken(set);
41 41 }
42 42
43 43 int TranslateOrAdd(TSymbol ch) {
44 44 var t = AlphabetBuilder.Translate(ch);
45 if (t == DFAConst.UNCLASSIFIED_INPUT)
45 if (t == AutomatonConst.UNCLASSIFIED_INPUT)
46 46 t = AlphabetBuilder.DefineSymbol(ch);
47 47 return t;
48 48 }
49 49
50 50 IEnumerable<int> TranslateOrAdd(IEnumerable<TSymbol> symbols) {
51 51 return symbols.Distinct().Select(TranslateOrAdd);
52 52 }
53 53
54 54 int TranslateOrDie(TSymbol ch) {
55 55 var t = AlphabetBuilder.Translate(ch);
56 if (t == DFAConst.UNCLASSIFIED_INPUT)
56 if (t == AutomatonConst.UNCLASSIFIED_INPUT)
57 57 throw new ApplicationException(String.Format("Symbol '{0}' is UNCLASSIFIED", ch));
58 58 return t;
59 59 }
60 60
61 61 IEnumerable<int> TranslateOrDie(IEnumerable<TSymbol> symbols) {
62 62 return symbols.Distinct().Select(TranslateOrDie);
63 63 }
64 64
65 protected Token<TTag> SymbolTokenExcept(IEnumerable<TSymbol> symbols) {
65 protected Token SymbolTokenExcept(IEnumerable<TSymbol> symbols) {
66 66 Safe.ArgumentNotNull(symbols, "symbols");
67 67
68 return Token<TTag>.New( Enumerable.Range(0, AlphabetBuilder.Count).Except(TranslateOrDie(symbols)).ToArray() );
68 return Token.New( Enumerable.Range(0, AlphabetBuilder.Count).Except(TranslateOrDie(symbols)).ToArray() );
69 69 }
70 70
71 71 protected abstract IndexedAlphabetBase<TSymbol> CreateAlphabet();
72 72
73 protected ScannerContext<TTag> BuildScannerContext(Token<TTag> regexp) {
73 protected ScannerContext<TTag> BuildScannerContext<TTag>(Token regexp) {
74 74
75 75 var dfa = new RegularDFA<TSymbol, TTag>(AlphabetBuilder);
76 76
77 var visitor = new RegularExpressionVisitor<TTag>();
78 regexp.Accept( visitor );
79
80 visitor.BuildDFA(dfa);
77 var visitor = new RegularExpressionVisitor<TTag>(dfa);
78 regexp.Accept(visitor);
79 visitor.BuildDFA();
81 80
82 81 if (dfa.IsFinalState(dfa.InitialState))
83 82 throw new ApplicationException("The specified language contains empty token");
84 83
85 84 var ab = CreateAlphabet();
86 85 var optimal = dfa.Optimize(ab);
87 86
88 87 return new ScannerContext<TTag>(
89 88 optimal.CreateTransitionTable(),
90 89 optimal.CreateFinalStateTable(),
91 90 optimal.CreateTagTable(),
92 91 optimal.InitialState,
93 92 ab.GetTranslationMap()
94 93 );
95 94 }
96 95
97 96 }
98 97
99 98
100 99 }
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@@ -1,11 +1,10
1 1 namespace Implab.Formats.JSON {
2 2 /// <summary>
3 3 /// internal
4 4 /// </summary>
5 5 enum JSONElementContext {
6 6 None,
7 7 Object,
8 Array,
9 Closed
8 Array
10 9 }
11 10 }
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@@ -1,109 +1,111
1 1 using System.Linq;
2 2 using Implab.Automaton.RegularExpressions;
3 3 using System;
4 4 using Implab.Automaton;
5 5
6 6 namespace Implab.Formats.JSON {
7 class JSONGrammar : Grammar<char,JSONGrammar.TokenType> {
7 class JSONGrammar : Grammar<char> {
8 8 public enum TokenType {
9 9 None,
10 10 BeginObject,
11 11 EndObject,
12 12 BeginArray,
13 13 EndArray,
14 14 String,
15 15 Number,
16 16 Literal,
17 17 NameSeparator,
18 18 ValueSeparator,
19 19
20 20 StringBound,
21 21 EscapedChar,
22 22 UnescapedChar,
23 23 EscapedUnicode
24 24 }
25 25
26 26 static Lazy<JSONGrammar> _instance = new Lazy<JSONGrammar>();
27 27
28 28 public static JSONGrammar Instance {
29 29 get { return _instance.Value; }
30 30 }
31 31
32 readonly ScannerContext<TokenType> m_jsonDFA;
33 readonly ScannerContext<TokenType> m_stringDFA;
32 readonly ScannerContext<TokenType> m_jsonExpression;
33 readonly ScannerContext<TokenType> m_stringExpression;
34 34
35 35 public JSONGrammar() {
36 36 DefineAlphabet(Enumerable.Range(0, 0x20).Select(x => (char)x));
37 37 var hexDigit = SymbolRangeToken('a','f').Or(SymbolRangeToken('A','F')).Or(SymbolRangeToken('0','9'));
38 38 var digit9 = SymbolRangeToken('1', '9');
39 39 var zero = SymbolToken('0');
40 40 var digit = zero.Or(digit9);
41 41 var dot = SymbolToken('.');
42 42 var minus = SymbolToken('-');
43 43 var sign = SymbolSetToken('-', '+');
44 44 var expSign = SymbolSetToken('e', 'E');
45 45 var letters = SymbolRangeToken('a', 'z');
46 46 var integer = zero.Or(digit9.Cat(digit.EClosure()));
47 47 var frac = dot.Cat(digit.Closure());
48 48 var exp = expSign.Cat(sign.Optional()).Cat(digit.Closure());
49 49 var quote = SymbolToken('"');
50 50 var backSlash = SymbolToken('\\');
51 51 var specialEscapeChars = SymbolSetToken('\\', '"', '/', 'b', 'f', 't', 'n', 'r');
52 52 var unicodeEspace = SymbolToken('u').Cat(hexDigit.Repeat(4));
53 53 var whitespace = SymbolSetToken('\n', '\r', '\t', ' ').EClosure();
54 54 var beginObject = whitespace.Cat(SymbolToken('{')).Cat(whitespace);
55 55 var endObject = whitespace.Cat(SymbolToken('}')).Cat(whitespace);
56 56 var beginArray = whitespace.Cat(SymbolToken('[')).Cat(whitespace);
57 57 var endArray = whitespace.Cat(SymbolToken(']')).Cat(whitespace);
58 58 var nameSep = whitespace.Cat(SymbolToken(':')).Cat(whitespace);
59 59 var valueSep = whitespace.Cat(SymbolToken(',')).Cat(whitespace);
60 60
61 61 var number = minus.Optional().Cat(integer).Cat(frac.Optional()).Cat(exp.Optional());
62 62 var literal = letters.Closure();
63 63 var unescaped = SymbolTokenExcept(Enumerable.Range(0, 0x20).Union(new int[] { '\\', '"' }).Select(x => (char)x));
64 64
65 65 var jsonExpression =
66 66 number.Tag(TokenType.Number)
67 67 .Or(literal.Tag(TokenType.Literal))
68 68 .Or(quote.Tag(TokenType.StringBound))
69 69 .Or(beginObject.Tag(TokenType.BeginObject))
70 70 .Or(endObject.Tag(TokenType.EndObject))
71 71 .Or(beginArray.Tag(TokenType.BeginArray))
72 72 .Or(endArray.Tag(TokenType.EndArray))
73 73 .Or(nameSep.Tag(TokenType.NameSeparator))
74 74 .Or(valueSep.Tag(TokenType.ValueSeparator));
75 75
76 76
77 77 var jsonStringExpression =
78 78 quote.Tag(TokenType.StringBound)
79 79 .Or(backSlash.Cat(specialEscapeChars).Tag(TokenType.EscapedChar))
80 80 .Or(backSlash.Cat(unicodeEspace).Tag(TokenType.EscapedUnicode))
81 81 .Or(unescaped.Closure().Tag(TokenType.UnescapedChar));
82 82
83 83
84 m_jsonDFA = BuildScannerContext(jsonExpression);
85 m_stringDFA = BuildScannerContext(jsonStringExpression);
84 m_jsonExpression = BuildScannerContext<TokenType>(jsonExpression);
85 m_stringExpression = BuildScannerContext<TokenType>(jsonStringExpression);
86
87
86 88 }
87 89
88 public ScannerContext<TokenType> JsonDFA {
90 public ScannerContext<TokenType> JsonExpression {
89 91 get {
90 return m_jsonDFA;
92 return m_jsonExpression;
91 93 }
92 94 }
93 95
94 public ScannerContext<TokenType> JsonStringDFA {
96 public ScannerContext<TokenType> JsonStringExpression {
95 97 get {
96 return m_stringDFA;
98 return m_stringExpression;
97 99 }
98 100 }
99 101
100 Token<TokenType> SymbolRangeToken(char start, char stop) {
102 Token SymbolRangeToken(char start, char stop) {
101 103 return SymbolToken(Enumerable.Range(start,stop - start).Cast<char>());
102 104 }
103 105
104 106 protected override IAlphabetBuilder<char> CreateAlphabet() {
105 107 return new CharAlphabet();
106 108 }
107 109
108 110 }
109 111 }
Show file before | Show file after | Hide comments
@@ -1,280 +1,295
1 1 using System;
2 2 using System.Diagnostics;
3 3 using System.IO;
4 4 using Implab.Automaton;
5 5 using Implab.Automaton.RegularExpressions;
6 6 using System.Linq;
7 7 using Implab.Components;
8 8
9 9 namespace Implab.Formats.JSON {
10 10 /// <summary>
11 11 /// internal
12 12 /// </summary>
13 13 public struct JSONParserContext {
14 14 public string memberName;
15 15 public JSONElementContext elementContext;
16 16 }
17 17
18 18 /// <summary>
19 19 /// Pull парсер JSON данных.
20 20 /// </summary>
21 21 /// <remarks>
22 22 /// Следует отметить отдельную интерпретацию свойства <see cref="Level"/>,
23 23 /// оно означает текущий уровень вложенности объектов, однако закрывающий
24 24 /// элемент объекта и массива имеет уровень меньше, чем сам объект.
25 25 /// <code>
26 26 /// { // Level = 1
27 27 /// "name" : "Peter", // Level = 1
28 28 /// "address" : { // Level = 2
29 29 /// city : "Stern" // Level = 2
30 30 /// } // Level = 1
31 31 /// } // Level = 0
32 32 /// </code>
33 33 /// </remarks>
34 34 public class JSONParser : Disposable {
35 35
36 36 enum MemberContext {
37 37 MemberName,
38 38 MemberValue
39 39 }
40 40
41 #region Parser rules
41 42 struct ParserContext {
42 DFAStateDescriptior<object>
43 }
43 readonly int[,] m_dfa;
44 int m_state;
45
46 readonly JSONElementContext m_elementContext;
44 47
45 static readonly EnumAlphabet<JsonTokenType> _alphabet = EnumAlphabet<JsonTokenType>.FullAlphabet;
46 static readonly DFAStateDescriptior<object>[] _jsonDFA;
47 static readonly int _jsonDFAInitialState;
48 static readonly DFAStateDescriptior<object>[] _objectDFA;
49 static readonly int _objectDFAInitialState;
50 static readonly DFAStateDescriptior<object>[] _arrayDFA;
51 static readonly int _arrayDFAInitialState;
48 public ParserContext(int[,] dfa, int state, JSONElementContext context) {
49 m_dfa = dfa;
50 m_state = state;
51 m_elementContext = context;
52 }
53
54 public bool Move(JsonTokenType token) {
55 var next = m_dfa[m_state, token];
56 if (next == AutomatonConst.UNREACHABLE_STATE)
57 return false;
58 m_state = next;
59 }
60
61 public JSONElementContext ElementContext {
62 get { return m_elementContext; }
63 }
64 }
52 65
53 66 static JSONParser() {
54 67
55 68
56 69 var valueExpression = Token(JsonTokenType.BeginArray, JsonTokenType.BeginObject, JsonTokenType.Literal, JsonTokenType.Number, JsonTokenType.String);
57 70 var memberExpression = Token(JsonTokenType.String).Cat(Token(JsonTokenType.NameSeparator)).Cat(valueExpression);
58 71
59 72 var objectExpression = memberExpression
60 73 .Cat(
61 74 Token(JsonTokenType.ValueSeparator)
62 75 .Cat(memberExpression)
63 76 .EClosure()
64 77 )
65 78 .Optional()
66 79 .Cat(Token(JsonTokenType.EndObject))
67 .Tag(null);
80 .End();
81
68 82 var arrayExpression = valueExpression
69 83 .Cat(
70 84 Token(JsonTokenType.ValueSeparator)
71 85 .Cat(valueExpression)
72 86 .EClosure()
73 87 )
74 88 .Optional()
75 89 .Cat(Token(JsonTokenType.EndArray))
76 .Tag(null);
90 .End();
77 91
78 var jsonExpression = valueExpression.Tag(null);
92 var jsonExpression = valueExpression.End();
79 93
80 _jsonDFA = CreateDFA(jsonExpression).GetTransitionTable();
81 _objectDFA = CreateDFA(objectExpression).GetTransitionTable();
82 _arrayDFA = CreateDFA(arrayExpression).GetTransitionTable();
94 _jsonDFA = CreateParserContext(jsonExpression, JSONElementContext.None);
95 _objectDFA = CreateParserContext(objectExpression, JSONElementContext.Object);
96 _arrayDFA = CreateParserContext(arrayExpression, JSONElementContext.Array);
83 97 }
84 98
85 static Token<object> Token(params JsonTokenType[] input) {
86 return Token<object>.New(input.Select(t => _alphabet.Translate(t)).ToArray());
99 static Token Token(params JsonTokenType[] input) {
100 return Token.New( input.Select(t => (int)t).ToArray() );
87 101 }
88 102
89 static RegularDFA<JsonTokenType,object> CreateDFA(Token<object> expr) {
90 var builder = new RegularExpressionVisitor<object>();
91 var dfa = new RegularDFA<JsonTokenType,object>(_alphabet);
92
103 static ParserContext CreateParserContext(Token expr, JSONElementContext context) {
104
105 var dfa = new DFATable();
106 var builder = new RegularExpressionVisitor(dfa);
93 107 expr.Accept(builder);
108 builder.BuildDFA();
94 109
95 builder.BuildDFA(dfa);
96 return dfa;
110 return new ParserContext(dfa.CreateTransitionTable(), dfa.InitialState, context);
97 111 }
98 112
113 #endregion
114
99 115 JSONScanner m_scanner;
100 116 MemberContext m_memberContext;
101 117
102 118 JSONElementType m_elementType;
103 119 object m_elementValue;
104 120
105 121 /// <summary>
106 122 /// Создает новый парсер на основе строки, содержащей JSON
107 123 /// </summary>
108 124 /// <param name="text"></param>
109 125 public JSONParser(string text)
110 126 : base(_jsonDFA, INITIAL_STATE, new JSONParserContext { elementContext = JSONElementContext.None, memberName = String.Empty }) {
111 127 Safe.ArgumentNotEmpty(text, "text");
112 128 m_scanner = new JSONScanner();
113 129 m_scanner.Feed(text.ToCharArray());
114 130 }
115 131
116 132 /// <summary>
117 133 /// Создает новый экземпляр парсера, на основе текстового потока.
118 134 /// </summary>
119 135 /// <param name="reader">Текстовый поток.</param>
120 /// <param name="dispose">Признак того, что парсер должен конролировать время жизни входного потока.</param>
121 public JSONParser(TextReader reader, bool dispose)
136 public JSONParser(TextReader reader)
122 137 : base(_jsonDFA, INITIAL_STATE, new JSONParserContext { elementContext = JSONElementContext.None, memberName = String.Empty }) {
123 138 Safe.ArgumentNotNull(reader, "reader");
124 139 m_scanner = new JSONScanner();
125 140 m_scanner.Feed(reader, dispose);
126 141 }
127 142
128 143 /// <summary>
129 144 /// Тип текущего элемента на котором стоит парсер.
130 145 /// </summary>
131 146 public JSONElementType ElementType {
132 147 get { return m_elementType; }
133 148 }
134 149
135 150 /// <summary>
136 151 /// Имя элемента - имя свойства родительского контейнера. Для элементов массивов и корневого всегда
137 152 /// пустая строка.
138 153 /// </summary>
139 154 public string ElementName {
140 155 get { return m_context.info.memberName; }
141 156 }
142 157
143 158 /// <summary>
144 159 /// Значение элемента. Только для элементов типа <see cref="JSONElementType.Value"/>, для остальных <c>null</c>
145 160 /// </summary>
146 161 public object ElementValue {
147 162 get { return m_elementValue; }
148 163 }
149 164
150 165 /// <summary>
151 166 /// Читает слеюудущий объект из потока
152 167 /// </summary>
153 168 /// <returns><c>true</c> - операция чтения прошла успешно, <c>false</c> - конец данных</returns>
154 169 public bool Read() {
155 170 if (m_context.current == UNREACHEBLE_STATE)
156 171 throw new InvalidOperationException("The parser is in invalid state");
157 172 object tokenValue;
158 173 JsonTokenType tokenType;
159 174 m_context.info.memberName = String.Empty;
160 175 while (m_scanner.ReadToken(out tokenValue, out tokenType)) {
161 176 Move((int)tokenType);
162 177 if (m_context.current == UNREACHEBLE_STATE)
163 178 UnexpectedToken(tokenValue, tokenType);
164 179 switch (tokenType) {
165 180 case JsonTokenType.BeginObject:
166 181 Switch(
167 182 _objectDFA,
168 183 INITIAL_STATE,
169 184 new JSONParserContext {
170 185 memberName = m_context.info.memberName,
171 186 elementContext = JSONElementContext.Object
172 187 }
173 188 );
174 189 m_elementValue = null;
175 190 m_memberContext = MemberContext.MemberName;
176 191 m_elementType = JSONElementType.BeginObject;
177 192 return true;
178 193 case JsonTokenType.EndObject:
179 194 Restore();
180 195 m_elementValue = null;
181 196 m_elementType = JSONElementType.EndObject;
182 197 return true;
183 198 case JsonTokenType.BeginArray:
184 199 Switch(
185 200 _arrayDFA,
186 201 INITIAL_STATE,
187 202 new JSONParserContext {
188 203 memberName = m_context.info.memberName,
189 204 elementContext = JSONElementContext.Array
190 205 }
191 206 );
192 207 m_elementValue = null;
193 208 m_memberContext = MemberContext.MemberValue;
194 209 m_elementType = JSONElementType.BeginArray;
195 210 return true;
196 211 case JsonTokenType.EndArray:
197 212 Restore();
198 213 m_elementValue = null;
199 214 m_elementType = JSONElementType.EndArray;
200 215 return true;
201 216 case JsonTokenType.String:
202 217 if (m_memberContext == MemberContext.MemberName) {
203 218 m_context.info.memberName = (string)tokenValue;
204 219 break;
205 220 }
206 221 m_elementType = JSONElementType.Value;
207 222 m_elementValue = tokenValue;
208 223 return true;
209 224 case JsonTokenType.Number:
210 225 m_elementType = JSONElementType.Value;
211 226 m_elementValue = tokenValue;
212 227 return true;
213 228 case JsonTokenType.Literal:
214 229 m_elementType = JSONElementType.Value;
215 230 m_elementValue = ParseLiteral((string)tokenValue);
216 231 return true;
217 232 case JsonTokenType.NameSeparator:
218 233 m_memberContext = MemberContext.MemberValue;
219 234 break;
220 235 case JsonTokenType.ValueSeparator:
221 236 m_memberContext = m_context.info.elementContext == JSONElementContext.Object ? MemberContext.MemberName : MemberContext.MemberValue;
222 237 break;
223 238 default:
224 239 UnexpectedToken(tokenValue, tokenType);
225 240 break;
226 241 }
227 242 }
228 243 if (m_context.info.elementContext != JSONElementContext.None)
229 244 throw new ParserException("Unexpedted end of data");
230 245 return false;
231 246 }
232 247
233 248 object ParseLiteral(string literal) {
234 249 switch (literal) {
235 250 case "null":
236 251 return null;
237 252 case "false":
238 253 return false;
239 254 case "true":
240 255 return true;
241 256 default:
242 257 UnexpectedToken(literal, JsonTokenType.Literal);
243 258 return null; // avoid compliler error
244 259 }
245 260 }
246 261
247 262 void UnexpectedToken(object value, JsonTokenType tokenType) {
248 263 throw new ParserException(String.Format("Unexpected token {0}: '{1}'", tokenType, value));
249 264 }
250 265
251 266
252 267 /// <summary>
253 268 /// Признак конца потока
254 269 /// </summary>
255 270 public bool EOF {
256 271 get {
257 272 return m_scanner.EOF;
258 273 }
259 274 }
260 275
261 276 protected override void Dispose(bool disposing) {
262 277 if (disposing) {
263 278 m_scanner.Dispose();
264 279 }
265 280 }
266 281
267 282 /// <summary>
268 283 /// Переходит в конец текущего объекта.
269 284 /// </summary>
270 285 public void SeekElementEnd() {
271 286 var level = Level - 1;
272 287
273 288 Debug.Assert(level >= 0);
274 289
275 290 while (Level != level)
276 291 Read();
277 292 }
278 293 }
279 294
280 295 }
Show file before | Show file after | Hide comments
@@ -1,150 +1,150
1 1 using System;
2 2 using Implab.Components;
3 3 using System.Diagnostics;
4 4 using Implab.Automaton;
5 5 using System.Text;
6 6
7 7 namespace Implab.Formats {
8 8 public abstract class TextScanner : Disposable {
9 9 readonly int m_bufferMax;
10 10 readonly int m_chunkSize;
11 11
12 12 char[] m_buffer;
13 13 int m_bufferOffset;
14 14 int m_bufferSize;
15 15 int m_tokenOffset;
16 16 int m_tokenLength;
17 17
18 18 /// <summary>
19 19 /// Initializes a new instance of the <see cref="Implab.Formats.TextScanner"/> class.
20 20 /// </summary>
21 21 /// <param name="bufferMax">Buffer max.</param>
22 22 /// <param name="chunkSize">Chunk size.</param>
23 23 protected TextScanner(int bufferMax, int chunkSize) {
24 24 Debug.Assert(m_chunkSize <= m_bufferMax);
25 25
26 26 m_bufferMax = bufferMax;
27 27 m_chunkSize = chunkSize;
28 28 }
29 29
30 30 /// <summary>
31 31 /// Initializes a new instance of the <see cref="Implab.Formats.TextScanner"/> class.
32 32 /// </summary>
33 33 /// <param name="buffer">Buffer.</param>
34 34 protected TextScanner(char[] buffer) {
35 35 if (buffer != null) {
36 36 m_buffer = buffer;
37 37 m_bufferSize = buffer.Length;
38 38 }
39 39 }
40 40
41 41 /// <summary>
42 42 /// (hungry) Reads the next token.
43 43 /// </summary>
44 44 /// <returns><c>true</c>, if token internal was read, <c>false</c> if there is no more tokens in the stream.</returns>
45 45 /// <param name="dfa">The transition map for the automaton</param>
46 46 /// <param name="final">Final states of the automaton.</param>
47 47 /// <param name="tags">Tags.</param>
48 48 /// <param name="state">The initial state for the automaton.</param>
49 49 /// <param name="alphabet"></param>
50 50 /// <param name = "tag"></param>
51 51 internal bool ReadToken<TTag>(int[,] dfa, bool[] final, TTag[][] tags, int state, int[] alphabet, out TTag[] tag) {
52 52 Safe.ArgumentNotNull();
53 53 m_tokenLength = 0;
54 54
55 55 var maxSymbol = alphabet.Length - 1;
56 56
57 57 do {
58 58 // after the next chunk is read the offset in the buffer may change
59 59 int pos = m_bufferOffset + m_tokenLength;
60 60
61 61 while (pos < m_bufferSize) {
62 62 var ch = m_buffer[pos];
63 63
64 state = dfa[state, ch > maxSymbol ? DFAConst.UNCLASSIFIED_INPUT : alphabet[ch]];
65 if (state == DFAConst.UNREACHABLE_STATE)
64 state = dfa[state, ch > maxSymbol ? AutomatonConst.UNCLASSIFIED_INPUT : alphabet[ch]];
65 if (state == AutomatonConst.UNREACHABLE_STATE)
66 66 break;
67 67
68 68 pos++;
69 69 }
70 70
71 71 m_tokenLength = pos - m_bufferOffset;
72 } while (state != DFAConst.UNREACHABLE_STATE && Feed());
72 } while (state != AutomatonConst.UNREACHABLE_STATE && Feed());
73 73
74 74 m_tokenOffset = m_bufferOffset;
75 75 m_bufferOffset += m_tokenLength;
76 76
77 77 if (final[state]) {
78 78 tag = tags[state];
79 79 return true;
80 80 }
81 81
82 82 if (m_bufferOffset == m_bufferSize) {
83 83 if (m_tokenLength == 0) //EOF
84 84 return false;
85 85
86 86 throw new ParserException();
87 87 }
88 88
89 89 throw new ParserException(String.Format("Unexpected symbol '{0}'", m_buffer[m_bufferOffset]));
90 90
91 91 }
92 92
93 93 protected void Feed(char[] buffer, int offset, int length) {
94 94 m_buffer = buffer;
95 95 m_bufferOffset = offset;
96 96 m_bufferSize = offset + length;
97 97 }
98 98
99 99 protected bool Feed() {
100 100 if (m_chunkSize <= 0)
101 101 return false;
102 102
103 103 if (m_buffer != null) {
104 104 var free = m_buffer.Length - m_bufferSize;
105 105
106 106 if (free < m_chunkSize) {
107 107 free += m_chunkSize;
108 108 var used = m_bufferSize - m_bufferOffset;
109 109 var size = used + free;
110 110
111 111 if (size > m_bufferMax)
112 112 throw new ParserException(String.Format("The buffer limit ({0} Kb) is reached", m_bufferMax/1024));
113 113
114 114 var temp = new char[size];
115 115
116 116 var read = Read(temp, used, m_chunkSize);
117 117 if (read == 0)
118 118 return false;
119 119
120 120 Array.Copy(m_buffer, m_bufferOffset, temp, 0, used);
121 121
122 122 m_bufferOffset = 0;
123 123 m_bufferSize = used + read;
124 124 m_buffer = temp;
125 125 }
126 126 } else {
127 127 Debug.Assert(m_bufferOffset == 0);
128 128 m_buffer = new char[m_chunkSize];
129 129 m_bufferSize = Read(m_buffer, 0, m_chunkSize);
130 130 return (m_bufferSize != 0);
131 131 }
132 132 }
133 133
134 134 protected abstract int Read(char[] buffer, int offset, int size);
135 135
136 136 public string GetTokenValue() {
137 137 return new String(m_buffer, m_tokenOffset, m_tokenLength);
138 138 }
139 139
140 140 public void CopyTokenTo(char[] buffer, int offset) {
141 141 m_buffer.CopyTo(buffer, offset);
142 142 }
143 143
144 144 public void CopyTokenTo(StringBuilder sb) {
145 145 sb.Append(m_buffer, m_tokenOffset, m_tokenLength);
146 146 }
147 147
148 148 }
149 149 }
150 150
Show file before | Show file after | Hide comments
@@ -1,275 +1,276
1 1 <?xml version="1.0" encoding="utf-8"?>
2 2 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
3 3 <PropertyGroup>
4 4 <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
5 5 <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
6 6 <ProjectGuid>{F550F1F8-8746-4AD0-9614-855F4C4B7F05}</ProjectGuid>
7 7 <OutputType>Library</OutputType>
8 8 <RootNamespace>Implab</RootNamespace>
9 9 <AssemblyName>Implab</AssemblyName>
10 10 <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
11 11 <ReleaseVersion>0.2</ReleaseVersion>
12 12 <ProductVersion>8.0.30703</ProductVersion>
13 13 <SchemaVersion>2.0</SchemaVersion>
14 14 </PropertyGroup>
15 15 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
16 16 <DebugSymbols>true</DebugSymbols>
17 17 <DebugType>full</DebugType>
18 18 <Optimize>false</Optimize>
19 19 <OutputPath>bin\Debug</OutputPath>
20 20 <DefineConstants>TRACE;DEBUG;</DefineConstants>
21 21 <ErrorReport>prompt</ErrorReport>
22 22 <WarningLevel>4</WarningLevel>
23 23 <ConsolePause>false</ConsolePause>
24 24 <RunCodeAnalysis>true</RunCodeAnalysis>
25 25 </PropertyGroup>
26 26 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
27 27 <DebugType>full</DebugType>
28 28 <Optimize>true</Optimize>
29 29 <OutputPath>bin\Release</OutputPath>
30 30 <ErrorReport>prompt</ErrorReport>
31 31 <WarningLevel>4</WarningLevel>
32 32 <ConsolePause>false</ConsolePause>
33 33 </PropertyGroup>
34 34 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug 4.5|AnyCPU' ">
35 35 <DebugSymbols>true</DebugSymbols>
36 36 <DebugType>full</DebugType>
37 37 <Optimize>false</Optimize>
38 38 <OutputPath>bin\Debug</OutputPath>
39 39 <DefineConstants>TRACE;DEBUG;NET_4_5</DefineConstants>
40 40 <ErrorReport>prompt</ErrorReport>
41 41 <WarningLevel>4</WarningLevel>
42 42 <RunCodeAnalysis>true</RunCodeAnalysis>
43 43 <ConsolePause>false</ConsolePause>
44 44 </PropertyGroup>
45 45 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release 4.5|AnyCPU' ">
46 46 <Optimize>true</Optimize>
47 47 <OutputPath>bin\Release</OutputPath>
48 48 <ErrorReport>prompt</ErrorReport>
49 49 <WarningLevel>4</WarningLevel>
50 50 <ConsolePause>false</ConsolePause>
51 51 <DefineConstants>NET_4_5</DefineConstants>
52 52 </PropertyGroup>
53 53 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'DebugMono|AnyCPU' ">
54 54 <DebugSymbols>true</DebugSymbols>
55 55 <DebugType>full</DebugType>
56 56 <Optimize>false</Optimize>
57 57 <OutputPath>bin\Debug</OutputPath>
58 58 <DefineConstants>TRACE;DEBUG;NET_4_5;MONO</DefineConstants>
59 59 <ErrorReport>prompt</ErrorReport>
60 60 <WarningLevel>4</WarningLevel>
61 61 <RunCodeAnalysis>true</RunCodeAnalysis>
62 62 <ConsolePause>false</ConsolePause>
63 63 </PropertyGroup>
64 64 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseMono|AnyCPU' ">
65 65 <Optimize>true</Optimize>
66 66 <OutputPath>bin\Release</OutputPath>
67 67 <DefineConstants>NET_4_5;MONO;</DefineConstants>
68 68 <ErrorReport>prompt</ErrorReport>
69 69 <WarningLevel>4</WarningLevel>
70 70 <ConsolePause>false</ConsolePause>
71 71 </PropertyGroup>
72 72 <ItemGroup>
73 73 <Reference Include="System" />
74 74 <Reference Include="System.Xml" />
75 75 <Reference Include="mscorlib" />
76 76 </ItemGroup>
77 77 <ItemGroup>
78 78 <Compile Include="CustomEqualityComparer.cs" />
79 79 <Compile Include="Diagnostics\ConsoleTraceListener.cs" />
80 80 <Compile Include="Diagnostics\EventText.cs" />
81 81 <Compile Include="Diagnostics\LogChannel.cs" />
82 82 <Compile Include="Diagnostics\LogicalOperation.cs" />
83 83 <Compile Include="Diagnostics\TextFileListener.cs" />
84 84 <Compile Include="Diagnostics\TraceLog.cs" />
85 85 <Compile Include="Diagnostics\TraceEvent.cs" />
86 86 <Compile Include="Diagnostics\TraceEventType.cs" />
87 87 <Compile Include="ICancellable.cs" />
88 88 <Compile Include="IProgressHandler.cs" />
89 89 <Compile Include="IProgressNotifier.cs" />
90 90 <Compile Include="IPromiseT.cs" />
91 91 <Compile Include="IPromise.cs" />
92 92 <Compile Include="IServiceLocator.cs" />
93 93 <Compile Include="ITaskController.cs" />
94 94 <Compile Include="Parallels\DispatchPool.cs" />
95 95 <Compile Include="Parallels\ArrayTraits.cs" />
96 96 <Compile Include="Parallels\MTQueue.cs" />
97 97 <Compile Include="Parallels\WorkerPool.cs" />
98 98 <Compile Include="ProgressInitEventArgs.cs" />
99 99 <Compile Include="Properties\AssemblyInfo.cs" />
100 100 <Compile Include="Parallels\AsyncPool.cs" />
101 101 <Compile Include="Safe.cs" />
102 102 <Compile Include="ValueEventArgs.cs" />
103 103 <Compile Include="PromiseExtensions.cs" />
104 104 <Compile Include="SyncContextPromise.cs" />
105 105 <Compile Include="Diagnostics\OperationContext.cs" />
106 106 <Compile Include="Diagnostics\TraceContext.cs" />
107 107 <Compile Include="Diagnostics\LogEventArgs.cs" />
108 108 <Compile Include="Diagnostics\LogEventArgsT.cs" />
109 109 <Compile Include="Diagnostics\Extensions.cs" />
110 110 <Compile Include="PromiseEventType.cs" />
111 111 <Compile Include="Parallels\AsyncQueue.cs" />
112 112 <Compile Include="PromiseT.cs" />
113 113 <Compile Include="IDeferred.cs" />
114 114 <Compile Include="IDeferredT.cs" />
115 115 <Compile Include="Promise.cs" />
116 116 <Compile Include="PromiseTransientException.cs" />
117 117 <Compile Include="Parallels\Signal.cs" />
118 118 <Compile Include="Parallels\SharedLock.cs" />
119 119 <Compile Include="Diagnostics\ILogWriter.cs" />
120 120 <Compile Include="Diagnostics\ListenerBase.cs" />
121 121 <Compile Include="Parallels\BlockingQueue.cs" />
122 122 <Compile Include="AbstractEvent.cs" />
123 123 <Compile Include="AbstractPromise.cs" />
124 124 <Compile Include="AbstractPromiseT.cs" />
125 125 <Compile Include="FuncTask.cs" />
126 126 <Compile Include="FuncTaskBase.cs" />
127 127 <Compile Include="FuncTaskT.cs" />
128 128 <Compile Include="ActionChainTaskBase.cs" />
129 129 <Compile Include="ActionChainTask.cs" />
130 130 <Compile Include="ActionChainTaskT.cs" />
131 131 <Compile Include="FuncChainTaskBase.cs" />
132 132 <Compile Include="FuncChainTask.cs" />
133 133 <Compile Include="FuncChainTaskT.cs" />
134 134 <Compile Include="ActionTaskBase.cs" />
135 135 <Compile Include="ActionTask.cs" />
136 136 <Compile Include="ActionTaskT.cs" />
137 137 <Compile Include="ICancellationToken.cs" />
138 138 <Compile Include="SuccessPromise.cs" />
139 139 <Compile Include="SuccessPromiseT.cs" />
140 140 <Compile Include="PromiseAwaiterT.cs" />
141 141 <Compile Include="PromiseAwaiter.cs" />
142 142 <Compile Include="Components\ComponentContainer.cs" />
143 143 <Compile Include="Components\Disposable.cs" />
144 144 <Compile Include="Components\DisposablePool.cs" />
145 145 <Compile Include="Components\ObjectPool.cs" />
146 146 <Compile Include="Components\ServiceLocator.cs" />
147 147 <Compile Include="Components\IInitializable.cs" />
148 148 <Compile Include="TaskController.cs" />
149 149 <Compile Include="Components\App.cs" />
150 150 <Compile Include="Components\IRunnable.cs" />
151 151 <Compile Include="Components\ExecutionState.cs" />
152 152 <Compile Include="Components\RunnableComponent.cs" />
153 153 <Compile Include="Components\IFactory.cs" />
154 154 <Compile Include="Automaton\EnumAlphabet.cs" />
155 155 <Compile Include="Automaton\IAlphabet.cs" />
156 156 <Compile Include="Automaton\ParserException.cs" />
157 157 <Compile Include="Automaton\IndexedAlphabetBase.cs" />
158 158 <Compile Include="Automaton\IAlphabetBuilder.cs" />
159 159 <Compile Include="Automaton\RegularExpressions\AltToken.cs" />
160 160 <Compile Include="Automaton\RegularExpressions\BinaryToken.cs" />
161 161 <Compile Include="Automaton\RegularExpressions\CatToken.cs" />
162 <Compile Include="Automaton\DFAConst.cs" />
163 162 <Compile Include="Automaton\RegularExpressions\StarToken.cs" />
164 163 <Compile Include="Automaton\RegularExpressions\SymbolToken.cs" />
165 164 <Compile Include="Automaton\RegularExpressions\EmptyToken.cs" />
166 165 <Compile Include="Automaton\RegularExpressions\Token.cs" />
167 166 <Compile Include="Automaton\RegularExpressions\IVisitor.cs" />
168 167 <Compile Include="Automaton\AutomatonTransition.cs" />
169 168 <Compile Include="Formats\JSON\JSONElementContext.cs" />
170 169 <Compile Include="Formats\JSON\JSONElementType.cs" />
171 170 <Compile Include="Formats\JSON\JSONGrammar.cs" />
172 171 <Compile Include="Formats\JSON\JSONParser.cs" />
173 172 <Compile Include="Formats\JSON\JSONScanner.cs" />
174 173 <Compile Include="Formats\JSON\JsonTokenType.cs" />
175 174 <Compile Include="Formats\JSON\JSONWriter.cs" />
176 175 <Compile Include="Formats\JSON\JSONXmlReader.cs" />
177 176 <Compile Include="Formats\JSON\JSONXmlReaderOptions.cs" />
178 177 <Compile Include="Formats\JSON\StringTranslator.cs" />
179 178 <Compile Include="Automaton\MapAlphabet.cs" />
180 179 <Compile Include="Automaton\DummyAlphabet.cs" />
181 180 <Compile Include="Formats\CharAlphabet.cs" />
182 181 <Compile Include="Formats\ByteAlphabet.cs" />
183 182 <Compile Include="Automaton\IDFATable.cs" />
184 183 <Compile Include="Automaton\IDFATableBuilder.cs" />
185 184 <Compile Include="Automaton\DFATable.cs" />
186 <Compile Include="Automaton\RegularExpressions\RegularDFA.cs" />
187 185 <Compile Include="Automaton\RegularExpressions\RegularExpressionVisitor.cs" />
188 186 <Compile Include="Automaton\RegularExpressions\ITaggedDFABuilder.cs" />
189 187 <Compile Include="Formats\TextScanner.cs" />
190 188 <Compile Include="Formats\StringScanner.cs" />
191 189 <Compile Include="Formats\ReaderScanner.cs" />
192 190 <Compile Include="Formats\ScannerContext.cs" />
193 191 <Compile Include="Formats\Grammar.cs" />
194 192 <Compile Include="Automaton\RegularExpressions\EndTokenT.cs" />
195 193 <Compile Include="Automaton\RegularExpressions\EndToken.cs" />
196 <Compile Include="Automaton\RegularExpressions\IVisitorT.cs" />
194 <Compile Include="Automaton\RegularExpressions\RegularExpressionVisitorT.cs" />
195 <Compile Include="Automaton\AutomatonConst.cs" />
196 <Compile Include="Automaton\RegularExpressions\RegularDFA.cs" />
197 <Compile Include="Components\LazyAndWeak.cs" />
197 198 </ItemGroup>
198 199 <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
199 200 <ItemGroup />
200 201 <ProjectExtensions>
201 202 <MonoDevelop>
202 203 <Properties>
203 204 <Policies>
204 205 <CSharpFormattingPolicy IndentSwitchBody="True" NamespaceBraceStyle="EndOfLine" ClassBraceStyle="EndOfLine" InterfaceBraceStyle="EndOfLine" StructBraceStyle="EndOfLine" EnumBraceStyle="EndOfLine" MethodBraceStyle="EndOfLine" ConstructorBraceStyle="EndOfLine" DestructorBraceStyle="EndOfLine" BeforeMethodDeclarationParentheses="False" BeforeMethodCallParentheses="False" BeforeConstructorDeclarationParentheses="False" NewLineBeforeConstructorInitializerColon="NewLine" NewLineAfterConstructorInitializerColon="SameLine" BeforeIndexerDeclarationBracket="False" BeforeDelegateDeclarationParentheses="False" NewParentheses="False" SpacesBeforeBrackets="False" inheritsSet="Mono" inheritsScope="text/x-csharp" scope="text/x-csharp" />
205 206 <TextStylePolicy FileWidth="120" EolMarker="Unix" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="text/x-csharp" />
206 207 <DotNetNamingPolicy DirectoryNamespaceAssociation="PrefixedHierarchical" ResourceNamePolicy="MSBuild" />
207 208 <TextStylePolicy FileWidth="120" TabsToSpaces="False" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="application/xml" />
208 209 <XmlFormattingPolicy inheritsSet="Mono" inheritsScope="application/xml" scope="application/xml" />
209 210 <TextStylePolicy FileWidth="120" TabsToSpaces="False" inheritsSet="VisualStudio" inheritsScope="text/plain" scope="text/plain" />
210 211 <NameConventionPolicy>
211 212 <Rules>
212 213 <NamingRule Name="Namespaces" AffectedEntity="Namespace" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
213 214 <NamingRule Name="Types" AffectedEntity="Class, Struct, Enum, Delegate" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
214 215 <NamingRule Name="Interfaces" AffectedEntity="Interface" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True">
215 216 <RequiredPrefixes>
216 217 <String>I</String>
217 218 </RequiredPrefixes>
218 219 </NamingRule>
219 220 <NamingRule Name="Attributes" AffectedEntity="CustomAttributes" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True">
220 221 <RequiredSuffixes>
221 222 <String>Attribute</String>
222 223 </RequiredSuffixes>
223 224 </NamingRule>
224 225 <NamingRule Name="Event Arguments" AffectedEntity="CustomEventArgs" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True">
225 226 <RequiredSuffixes>
226 227 <String>EventArgs</String>
227 228 </RequiredSuffixes>
228 229 </NamingRule>
229 230 <NamingRule Name="Exceptions" AffectedEntity="CustomExceptions" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True">
230 231 <RequiredSuffixes>
231 232 <String>Exception</String>
232 233 </RequiredSuffixes>
233 234 </NamingRule>
234 235 <NamingRule Name="Methods" AffectedEntity="Methods" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
235 236 <NamingRule Name="Static Readonly Fields" AffectedEntity="ReadonlyField" VisibilityMask="Internal, Protected, Public" NamingStyle="CamelCase" IncludeInstanceMembers="False" IncludeStaticEntities="True" />
236 237 <NamingRule Name="Fields (Non Private)" AffectedEntity="Field" VisibilityMask="Internal, Public" NamingStyle="CamelCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
237 238 <NamingRule Name="ReadOnly Fields (Non Private)" AffectedEntity="ReadonlyField" VisibilityMask="Internal, Public" NamingStyle="CamelCase" IncludeInstanceMembers="True" IncludeStaticEntities="False" />
238 239 <NamingRule Name="Fields (Private)" AffectedEntity="Field, ReadonlyField" VisibilityMask="Private, Protected" NamingStyle="CamelCase" IncludeInstanceMembers="True" IncludeStaticEntities="False">
239 240 <RequiredPrefixes>
240 241 <String>m_</String>
241 242 </RequiredPrefixes>
242 243 </NamingRule>
243 244 <NamingRule Name="Static Fields (Private)" AffectedEntity="Field" VisibilityMask="Private" NamingStyle="CamelCase" IncludeInstanceMembers="False" IncludeStaticEntities="True">
244 245 <RequiredPrefixes>
245 246 <String>_</String>
246 247 </RequiredPrefixes>
247 248 </NamingRule>
248 249 <NamingRule Name="ReadOnly Fields (Private)" AffectedEntity="ReadonlyField" VisibilityMask="Private, Protected" NamingStyle="CamelCase" IncludeInstanceMembers="True" IncludeStaticEntities="False">
249 250 <RequiredPrefixes>
250 251 <String>m_</String>
251 252 </RequiredPrefixes>
252 253 </NamingRule>
253 254 <NamingRule Name="Constant Fields" AffectedEntity="ConstantField" VisibilityMask="VisibilityMask" NamingStyle="AllUpper" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
254 255 <NamingRule Name="Properties" AffectedEntity="Property" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
255 256 <NamingRule Name="Events" AffectedEntity="Event" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
256 257 <NamingRule Name="Enum Members" AffectedEntity="EnumMember" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
257 258 <NamingRule Name="Parameters" AffectedEntity="Parameter, LocalVariable" VisibilityMask="VisibilityMask" NamingStyle="CamelCase" IncludeInstanceMembers="True" IncludeStaticEntities="True" />
258 259 <NamingRule Name="Type Parameters" AffectedEntity="TypeParameter" VisibilityMask="VisibilityMask" NamingStyle="PascalCase" IncludeInstanceMembers="True" IncludeStaticEntities="True">
259 260 <RequiredPrefixes>
260 261 <String>T</String>
261 262 </RequiredPrefixes>
262 263 </NamingRule>
263 264 </Rules>
264 265 </NameConventionPolicy>
265 266 </Policies>
266 267 </Properties>
267 268 </MonoDevelop>
268 269 </ProjectExtensions>
269 270 <ItemGroup>
270 271 <Folder Include="Components\" />
271 272 <Folder Include="Automaton\RegularExpressions\" />
272 273 <Folder Include="Formats\" />
273 274 <Folder Include="Formats\JSON\" />
274 275 </ItemGroup>
275 276 </Project> No newline at end of file
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