public virtual void SimpleTest()
        {
            SemanticGraph   sg             = SemanticGraph.ValueOf("[mixed/VBN nsubj>[Joe/NNP appos>[bartender/NN det>the/DT]]  dobj>[drink/NN det>a/DT]]");
            SemgrexPattern  semgrexPattern = SemgrexPattern.Compile("{}=a1 >appos=e1 {}=a2 <nsubj=e2 {}=a3");
            SsurgeonPattern pattern        = new SsurgeonPattern(semgrexPattern);

            System.Console.Out.WriteLine("Start = " + sg.ToCompactString());
            // Find and snip the appos and root to nsubj links
            SsurgeonEdit apposSnip = new RemoveNamedEdge("e1", "a1", "a2");

            pattern.AddEdit(apposSnip);
            SsurgeonEdit nsubjSnip = new RemoveNamedEdge("e2", "a3", "a1");

            pattern.AddEdit(nsubjSnip);
            // Attach Joe to be the nsubj of bartender
            SsurgeonEdit reattachSubj = new AddEdge("a2", "a1", EnglishGrammaticalRelations.NominalSubject);

            pattern.AddEdit(reattachSubj);
            // Attach copula
            IndexedWord isNode = new IndexedWord();

            isNode.Set(typeof(CoreAnnotations.TextAnnotation), "is");
            isNode.Set(typeof(CoreAnnotations.LemmaAnnotation), "is");
            isNode.Set(typeof(CoreAnnotations.OriginalTextAnnotation), "is");
            isNode.Set(typeof(CoreAnnotations.PartOfSpeechAnnotation), "VBN");
            SsurgeonEdit addCopula = new AddDep("a2", EnglishGrammaticalRelations.Copula, isNode);

            pattern.AddEdit(addCopula);
            // Destroy subgraph
            SsurgeonEdit destroySubgraph = new DeleteGraphFromNode("a3");

            pattern.AddEdit(destroySubgraph);
            // Process and output modified
            ICollection <SemanticGraph> newSgs = pattern.Execute(sg);

            foreach (SemanticGraph newSg in newSgs)
            {
                System.Console.Out.WriteLine("Modified = " + newSg.ToCompactString());
            }
            string firstGraphString = newSgs.GetEnumerator().Current.ToCompactString().Trim();

            NUnit.Framework.Assert.AreEqual(firstGraphString, "[bartender cop>is nsubj>Joe det>the]");
        }
Beispiel #2
0
        /// <summary>Given a string entry, converts it into a SsurgeonEdit object.</summary>
        public static SsurgeonEdit ParseEditLine(string editLine)
        {
            // Extract the operation name first
            string[] tuples1 = editLine.Split("\\s+", 2);
            if (tuples1.Length < 2)
            {
                throw new ArgumentException("Error in SsurgeonEdit.parseEditLine: invalid number of arguments");
            }
            string command = tuples1[0];

            string[] argsArray            = ParseArgs(tuples1[1]);
            Ssurgeon.SsurgeonArgs argsBox = new Ssurgeon.SsurgeonArgs();
            for (int argIndex = 0; argIndex < argsArray.Length; ++argIndex)
            {
                switch (argsArray[argIndex])
                {
                case GovNodenameArg:
                {
                    argsBox.govNodeName = argsArray[argIndex + 1];
                    argIndex           += 2;
                    break;
                }

                case DepNodenameArg:
                {
                    argsBox.dep = argsArray[argIndex + 1];
                    argIndex   += 2;
                    break;
                }

                case EdgeNameArg:
                {
                    argsBox.edge = argsArray[argIndex + 1];
                    argIndex    += 2;
                    break;
                }

                case RelnArg:
                {
                    argsBox.reln = argsArray[argIndex + 1];
                    argIndex    += 2;
                    break;
                }

                case NodenameArg:
                {
                    argsBox.node = argsArray[argIndex + 1];
                    argIndex    += 2;
                    break;
                }

                case NodeProtoArg:
                {
                    argsBox.nodeString = argsArray[argIndex + 1];
                    argIndex          += 2;
                    break;
                }

                case WeightArg:
                {
                    argsBox.weight = double.ValueOf(argsArray[argIndex + 1]);
                    argIndex      += 2;
                    break;
                }

                case NameArg:
                {
                    argsBox.name = argsArray[argIndex + 1];
                    argIndex    += 2;
                    break;
                }

                default:
                {
                    throw new ArgumentException("Parsing Ssurgeon args: unknown flag " + argsArray[argIndex]);
                }
                }
            }
            // Parse the arguments based upon the type of command to execute.
            // TODO: this logic really should be moved into the individual classes.  The string-->class
            // mappings should also be stored in more appropriate data structure.
            SsurgeonEdit retEdit;

            if (Sharpen.Runtime.EqualsIgnoreCase(command, AddDep.Label))
            {
                retEdit = AddDep.CreateEngAddDep(argsBox.govNodeName, argsBox.reln, argsBox.nodeString);
            }
            else
            {
                if (Sharpen.Runtime.EqualsIgnoreCase(command, AddNode.Label))
                {
                    retEdit = AddNode.CreateAddNode(argsBox.nodeString, argsBox.name);
                }
                else
                {
                    if (Sharpen.Runtime.EqualsIgnoreCase(command, AddEdge.Label))
                    {
                        retEdit = AddEdge.CreateEngAddEdge(argsBox.govNodeName, argsBox.dep, argsBox.reln);
                    }
                    else
                    {
                        if (Sharpen.Runtime.EqualsIgnoreCase(command, DeleteGraphFromNode.Label))
                        {
                            retEdit = new DeleteGraphFromNode(argsBox.node);
                        }
                        else
                        {
                            if (Sharpen.Runtime.EqualsIgnoreCase(command, RemoveEdge.Label))
                            {
                                retEdit = new RemoveEdge(GrammaticalRelation.ValueOf(argsBox.reln), argsBox.govNodeName, argsBox.dep);
                            }
                            else
                            {
                                if (Sharpen.Runtime.EqualsIgnoreCase(command, RemoveNamedEdge.Label))
                                {
                                    retEdit = new RemoveNamedEdge(argsBox.edge, argsBox.govNodeName, argsBox.dep);
                                }
                                else
                                {
                                    if (Sharpen.Runtime.EqualsIgnoreCase(command, SetRoots.Label))
                                    {
                                        string[]       names    = tuples1[1].Split("\\s+");
                                        IList <string> newRoots = Arrays.AsList(names);
                                        retEdit = new SetRoots(newRoots);
                                    }
                                    else
                                    {
                                        if (Sharpen.Runtime.EqualsIgnoreCase(command, KillNonRootedNodes.Label))
                                        {
                                            retEdit = new KillNonRootedNodes();
                                        }
                                        else
                                        {
                                            if (Sharpen.Runtime.EqualsIgnoreCase(command, KillAllIncomingEdges.Label))
                                            {
                                                retEdit = new KillAllIncomingEdges(argsBox.node);
                                            }
                                            else
                                            {
                                                throw new ArgumentException("Error in SsurgeonEdit.parseEditLine: command '" + command + "' is not supported");
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
            return(retEdit);
        }