Exemple #1
0
        private IEnumerable <int> PerformSearch(IList <SearchField> fields, Func <bool> isSearchCanceled)
        {
            var results = new HashSet <int>();

            lock (m_syncRoot)
            {
                foreach (SearchField field in fields)
                {
                    if (isSearchCanceled())
                    {
                        return(null);
                    }

                    Tuple <int, int> key = IsFieldMultiString(field) ? Tuple.Create(field.Flid, field.String.get_WritingSystemAt(0)) : Tuple.Create(field.Flid, 0);
                    int pos;
                    if (!m_indexObjPos.TryGetValue(key, out pos))
                    {
                        pos = 0;
                    }

                    if (m_searchableObjs == null || pos < m_searchableObjs.Count)
                    {
                        // only use the IWorkerThreadReadHandler if we are executing on the worker thread
                        if (SynchronizationContext.Current == m_synchronizationContext)
                        {
                            pos = BuildIndex(pos, field, isSearchCanceled);
                        }
                        else
                        {
                            using (new WorkerThreadReadHelper(m_cache.ServiceLocator.GetInstance <IWorkerThreadReadHandler>()))
                                pos = BuildIndex(pos, field, isSearchCanceled);
                        }
                        m_indexObjPos[key] = pos;
                    }
                }

                foreach (SearchField field in fields)
                {
                    if (isSearchCanceled())
                    {
                        return(null);
                    }
                    results.UnionWith(m_searcher.Search(field.Flid, field.String));
                }
            }

            if (isSearchCanceled())
            {
                return(null);
            }

            return(results);
        }
        public void KMP_Search_String()
        {
            string stringW = "put";
            string stringS = "computer";

            char[] W = stringW.ToCharArray();
            char[] S = stringS.ToCharArray();

            StringSearcher ss = new StringSearcher(W);
            int            ix = ss.Search(S);

            Console.WriteLine("Location of W in S is " + ix);
        }
Exemple #3
0
        private bool PerformUpdate(object param)
        {
            CreateSearcher();
            try
            {
                m_changingSelection = true;
                try
                {
                    m_listBox.BeginUpdate();
                    m_listBox.Items.Clear();
                    // TODO: sort the results
                    foreach (ICmPossibility poss in m_searcher.Search(0, (ITsString)param))
                    {
                        // Every so often see whether the user has typed something that makes our search irrelevant.
                        if (ShouldAbort())
                        {
                            return(false);
                        }

                        var autoCompleteItem = ObjectLabel.CreateObjectLabel(m_cache, poss, m_displayNameProperty, m_displayWs);
                        if (m_listBox.Items.OfType <ObjectLabel>().All(item => !ReferenceEquals(item.Object, autoCompleteItem.Object)))
                        {
                            m_listBox.Items.Add(autoCompleteItem);
                        }
                    }
                }
                finally
                {
                    m_listBox.EndUpdate();
                }

                if (m_listBox.Items.Count > 0)
                {
                    m_listBox.AdjustSize(500, 400);
                    m_listBox.SelectedIndex = 0;
                    m_listBox.Launch(m_control.RectangleToScreen(m_control.Bounds), Screen.GetWorkingArea(m_control));
                }
                else
                {
                    m_listBox.HideForm();
                }
            }
            finally
            {
                m_changingSelection = false;
            }
            return(true);
        }
		private static void CheckNoResultsSearch(StringSearcher<int> searcher, ITsString tss)
		{
			Assert.AreEqual(0, searcher.Search(0, tss).Count());
		}
		private static void CheckSearch(StringSearcher<int> searcher, ITsString tss, int[] expectedResults)
		{
			Assert.AreEqual(expectedResults.Length, searcher.Search(0, tss).Intersect(expectedResults).Count());
		}
Exemple #6
0
        /// <summary>
        /// Searches the specified fields.
        /// </summary>
        /// <param name="fields">The fields.</param>
        /// <param name="filters">The filters.</param>
        public void Search(IEnumerable <SearchField> fields, IEnumerable <ICmObject> filters)
        {
            // If we abort this search (because the user typed), but somehow the system becomes idle before we complete a new
            // search, go ahead and complete the original one.
            m_pendingFields  = fields;
            m_pendingFilters = filters;
            m_mediator.IdleQueue.Add(IdleQueuePriority.High, DoPendingSearchWhenIdle);

            CreateSearchers();

            var       results        = new HashSet <ICmObject>();
            ITsString firstSearchStr = null;

            foreach (SearchField field in fields)
            {
                if (ShouldAbort())
                {
                    return;
                }
                if (firstSearchStr == null)
                {
                    firstSearchStr = field.String;
                }
                results.UnionWith(m_searcher.Search(field.Flid, field.String));
            }

            if (filters != null)
            {
                results.ExceptWith(filters);
            }

            if (ShouldAbort())
            {
                return;
            }
            // The following fixes LT-10293.
            RecordSorter sorter = null;

            if (firstSearchStr != null)
            {
                int  ws     = firstSearchStr.get_WritingSystemAt(0);
                bool isVern = m_cache.ServiceLocator.WritingSystems.VernacularWritingSystems.Contains(ws);
                sorter = m_bvMatches.CreateSorterForFirstColumn(isVern, ws);
            }
            if (sorter != null)
            {
                // Convert each ICmObject in results to a IManyOnePathSortItem, and sort
                // using the sorter.
                var records = new ArrayList(results.Count);
                foreach (ICmObject obj in results)
                {
                    records.Add(new ManyOnePathSortItem(obj));
                }
                sorter.Sort(records);
                var hvos = new int[records.Count];
                for (int i = 0; i < records.Count; ++i)
                {
                    hvos[i] = (((IManyOnePathSortItem)records[i]).KeyObject);
                }
                UpdateResults(hvos);
            }
            else
            {
                UpdateResults(results.Select(obj => obj.Hvo).ToArray());
            }
            // Completed successfully, don't want to do again.
            m_pendingFields = null;
            m_mediator.IdleQueue.Remove(DoPendingSearchWhenIdle);
        }
Exemple #7
0
        public static void Main()
        {
            //string word = "xx";
            //string text = "xxx";

            var word = Console.ReadLine();
            var text = Console.ReadLine();

            char[] S = text.ToCharArray();

            var        prefix = "";
            BigInteger result = 0;

            for (int i = 0; i < word.Length; i++)
            {
                prefix += word[i];

                var suffix = "";

                for (int j = i; j < word.Length - 1; j++)
                {
                    suffix += word[j + 1];
                }

                char[] prefixCharArr = prefix.ToCharArray();
                char[] suffixCharArr = suffix.ToCharArray();


                StringSearcher prefixSearcher = new StringSearcher(prefixCharArr);

                int        prefixIndex = 0;
                BigInteger prefixCount = 0;
                do
                {
                    prefixIndex = prefixSearcher.Search(S, prefixIndex);

                    if (prefixIndex != -1)
                    {
                        prefixCount++;
                        //prefixIndex += prefix.Length;
                        prefixIndex++;
                    }
                } while (prefixIndex != -1);

                int        suffixIndex = 0;
                BigInteger suffixCount = 0;
                if (suffix != "")
                {
                    StringSearcher suffixSearcher = new StringSearcher(suffixCharArr);
                    do
                    {
                        suffixIndex = suffixSearcher.Search(S, suffixIndex);

                        if (suffixIndex != -1)
                        {
                            suffixCount++;
                            //suffixIndex += suffix.Length;
                            suffixIndex++;
                        }
                    } while (suffixIndex != -1);
                }
                else
                {
                    suffixCount = 1;
                }


                result += prefixCount * suffixCount;
            }

            Console.WriteLine(result);
        }