Mercurial > pub > ImplabNet

annotate Implab/Automaton/RegularExpressions/RegularExpressionVisitorT.cs @ 196:40d7fed4a09e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
author cin
date Mon, 29 Aug 2016 23:15:51 +0300
parents d5c5db0335ee
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
178
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
1 using Implab;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
2 using System;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
3 using System.Collections.Generic;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
4 using System.Diagnostics;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
5 using System.Linq;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
6
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
7 namespace Implab.Automaton.RegularExpressions {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
8 /// <summary>
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
9 /// </summary>
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
10 public class RegularExpressionVisitor<TTag> : RegularExpressionVisitor {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
11 readonly Dictionary<int, TTag> m_tags = new Dictionary<int, TTag>();
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
12
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
13 readonly ITaggedDFABuilder<TTag> m_builder;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
14
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
15 public RegularExpressionVisitor(ITaggedDFABuilder<TTag> builder) : base(builder) {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
16 m_builder = builder;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
17 }
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
18
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
19 public override void Visit(EndToken token) {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
20 base.Visit(token);
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
21 var tagged = token as EndToken<TTag>;
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
22 if (tagged != null)
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
23 m_tags.Add(Index, tagged.Tag);
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
24 }
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
25
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
26 protected override void MarkFinalState(HashSet<int> state) {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
27 base.MarkFinalState(state);
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
28 m_builder.SetStateTag(Translate(state), GetStateTags(state));
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
29 }
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
30
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
31 TTag[] GetStateTags(IEnumerable<int> state) {
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
32 Debug.Assert(state != null);
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
33 return state.Where(m_tags.ContainsKey).Select(pos => m_tags[pos]).ToArray();
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
34 }
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
35
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
36 }
d5c5db0335ee working on JSON parser
cin
parents:
diff changeset
37 }