C# RegularExpressions.Regex类代码示例

 public void ShouldRegexMatchColonTerminatedFirstMultilineSlashNTerminated()
 {
   string content = string.Format("blah:{0}blah", "\n");
   Regex regex = new Regex(".*:$", RegexOptions.Multiline);
   regex.IsMatch(content).Should().BeTrue();
   regex.Matches(content).Count.Should().Be(1);
 }

 public MessInfo(string s)
 {
     const string FILE = "file";
     const string LINE = "line";
     const string COND = "cond";
     const string ERROR = "error";
     const string MESSAGE = "message";
     Regex rex = new Regex(@"""?(?<" + FILE + @">[a-zA-Z]:\\(?:[^\\/:*?<>|\r\n]+\\)*(?:[^\\/:*?""<>|\r\n]+))""?,\sline\s(?<" + LINE + @">[0-9]+):\s(?<" + COND + @">Error|Warning):[^#]+#(?<"[email protected]">[0-9]+(?:-\D)?):\s*(?<"[email protected]">.+)\z");
     Match m = rex.Match(s);
     if (m.Success)
     {
         try
         {
             this.File = m.Groups[FILE].Value;
             this.Line = int.Parse(m.Groups[LINE].Value);
             this.Cond = (Level)Enum.Parse(typeof(Level), m.Groups[COND].Value);
             this.Error = m.Groups[ERROR].Value;
             this.Message = m.Groups[MESSAGE].Value;
             this.Success = true;
         }
         catch
         {
             this.Success = false;
         }
     }
 }

        /// <summary>
        /// Corrects the image path relative to the requested page or css where they originate from
        /// </summary>
        /// <param name="url"></param>
        /// <param name="requestPath"></param>
        /// <returns></returns>
        public static string CorrectUrl(string url, string requestPath)
        {
            var correctedImgPath = url.TrimStart('~');

            // make sure 'requestPath' starts with a '/'
            if (!requestPath.StartsWith("/"))
                requestPath = "/" + requestPath;

            if (!url.StartsWith("/") && !url.StartsWith("../"))
            {
                correctedImgPath = VirtualPathUtility.GetDirectory(requestPath) + url.TrimStart('/');
            }
            else if (url.StartsWith("../"))
            {
                var path = VirtualPathUtility.GetDirectory(requestPath);
                var regex = new Regex(@"\.\./");
                var levelUpMatches = regex.Matches(url);
                var numberOfLevelsUp = levelUpMatches.Count;
                var pathDirs = path.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
                var newPathDirs = pathDirs.Take(pathDirs.Length - numberOfLevelsUp);
                var newPath = String.Join("/", newPathDirs).Trim();
                correctedImgPath = regex.Replace(url, "");
                correctedImgPath = String.IsNullOrEmpty(newPath) ? String.Format("/{0}", correctedImgPath) : String.Format("/{0}/{1}", newPath, correctedImgPath);
            }

            return correctedImgPath;
        }

		public static string UpdateStatus(string status, TwUser user, string replyId)
		{
			Regex regex = new Regex(@"\[(.*?)\]");
			List<FileInfo> media = new List<FileInfo>();
			foreach (System.Text.RegularExpressions.Match match in regex.Matches(status))
			{
				status = status.Replace(match.Value, "");
				FileInfo file = new FileInfo(match.Value.Replace("[", "").Replace("]", ""));
				if (!file.Exists)
					throw new FileNotFoundException("File not found", file.FullName);
				media.Add(file);
            }

			if (media.Count > 4) //limited by the twitter API
				throw new ArgumentOutOfRangeException("media", "Up to 4 media files are allowed per tweet");

			if (user == null)
				user = TwUser.LoadCredentials();
			string encodedStatus = Util.EncodeString(status);
			
			if (media.Count == 0)
				return InternalUpdateStatus(user, encodedStatus, replyId);
			else
				return InternalUpdateWithMedia(user, encodedStatus, replyId, media);
		}

        /// <summary>
        /// Gets inner HTML string from the first found element with the given class name (e.g. class="sample-test").
        /// </summary>
        /// <param name="sourceString">An HTML string to parse.</param>
        /// <param name="className">Class name.</param>
        /// <returns>An HTML string.</returns>
        public static string getInnerHTML(string sourceString, string className)
        {
            Match match = new Regex(className).Match(sourceString);

            if (!match.Success) return "";

            int lb = match.Index + className.Length;
            for (; lb < sourceString.Length && !(sourceString[lb - 1] == '>' && sourceString[lb - 2] != '\\'); lb++);
            int rb = lb, tmp, bracketCounter = 1;

            while (bracketCounter > 0)
            {
                while (rb < sourceString.Length && !(sourceString[rb] == '<' && sourceString[rb - 1] != '\\')) rb++;

                tmp = rb + 1;
                while (tmp < sourceString.Length && !(sourceString[tmp] == '>' && sourceString[tmp - 1] != '\\')) tmp++;

                if (sourceString[rb + 1] == '/') bracketCounter--;
                else if (sourceString[tmp - 1] != '/') bracketCounter++;

                rb++;
            }

            while (!(sourceString[--rb] == '<' && sourceString[rb - 1] != '\\')) ;

            return sourceString.Substring(lb, rb - lb);
        }

        public override void DataSet(string myPath, string myPattern)
        {
            string[] fileList = Directory.GetFiles(myPath, myPattern, SearchOption.AllDirectories);

            Regex regexMov = new Regex(MovieContents.REGEX_MOVIE_EXTENTION, RegexOptions.IgnoreCase);
            Regex regexJpg = new Regex(@".*\.jpg$|.*\.jpeg$", RegexOptions.IgnoreCase);
            Regex regexLst = new Regex(@".*\.wpl$|.*\.asx$", RegexOptions.IgnoreCase);

            foreach (string file in fileList)
            {
                listFileInfo.Add(new common.FileContents(file, myPath));

                if (regexMov.IsMatch(file))
                    MovieCount++;
                if (regexJpg.IsMatch(file))
                    ImageCount++;
                if (regexLst.IsMatch(file))
                    ListCount++;

                if (regexJpg.IsMatch(file) && ImageCount == 1)
                    StartImagePathname = file;
            }
            ColViewListFileInfo = CollectionViewSource.GetDefaultView(listFileInfo);

            if (ColViewListFileInfo != null && ColViewListFileInfo.CanSort == true)
            {
                ColViewListFileInfo.SortDescriptions.Clear();
                ColViewListFileInfo.SortDescriptions.Add(new SortDescription("FileInfo.LastWriteTime", ListSortDirection.Ascending));
            }
        }

        private void ValidateInputText()
        {
            if (regexPattern == String.Empty)
            {
                Message = "Regex is Empty";
                return;
            }

            try
            {
                regex = new Regex(regexPattern);
                Message = String.Empty;
            }
            catch (ArgumentException error)
            {
                Message = error.Message;
                return;
            }

            if (InputText != null)
            {
                bool isMatch = regex.IsMatch(InputText);
                if (isMatch)
                {
                    Message = "It's works!";
                }
                else
                {
                    Message = "No working :(";
                }
            }
        }

        /// <summary/>
        protected CodeFormat()
        {
            //generate the keyword and preprocessor regexes from the keyword lists
            var r = new Regex(@"\w+|-\w+|#\w+|@@\w+|#(?:\\(?:s|w)(?:\*|\+)?\w+)+|@\\w\*+");
            string regKeyword = r.Replace(Keywords, @"(?<=^|\W)$0(?=\W)");
            string regPreproc = r.Replace(Preprocessors, @"(?<=^|\s)$0(?=\s|$)");
            r = new Regex(@" +");
            regKeyword = r.Replace(regKeyword, @"|");
            regPreproc = r.Replace(regPreproc, @"|");

            if (regPreproc.Length == 0)
            {
                regPreproc = "(?!.*)_{37}(?<!.*)"; //use something quite impossible...
            }

            //build a master regex with capturing groups
            var regAll = new StringBuilder();
            regAll.Append("(");
            regAll.Append(CommentRegex);
            regAll.Append(")|(");
            regAll.Append(StringRegex);
            if (regPreproc.Length > 0)
            {
                regAll.Append(")|(");
                regAll.Append(regPreproc);
            }
            regAll.Append(")|(");
            regAll.Append(regKeyword);
            regAll.Append(")");

            RegexOptions caseInsensitive = CaseSensitive ? 0 : RegexOptions.IgnoreCase;
            CodeRegex = new Regex(regAll.ToString(), RegexOptions.Singleline | caseInsensitive);
        }

        public void ExecuteMethodFromRegex(IrcEventArgs e)
        {
            if(isRunning==true)
            {
                SendUnscramble(e);
            }
            foreach(KeyValuePair<string,string> pair in regexDictionary)
            {
                regex = new Regex(pair.Key);
                if(regex.IsMatch(e.Data.Message))
                {
                    string methodName = pair.Value;

                        //Get the method information using the method info class
                        MethodInfo mi = this.GetType().GetMethod(methodName);
                        object[] objargs = new object[1];
                        objargs[0]=e;
            //						//Invoke the method
            //						// (null- no paramyeseter for the method call
            //						// or you can pass the array of parameters...)
                    if(mi==null)
                    {
                        //client.SendMessage(SendType.Message, e.Data.Channel,"mi is null! "+e.Data.Message);
                        SharpBotClient.SharpBotClient.SendChannelMessag(e.Data.Channel,"handled from client");
                    }
                    else
                    {
                        mi.Invoke(this,objargs);
                    }

                }
            }
        }

        /// <summary>
        /// Обрабатывает шаблон, вставляет значение полей моделей в макросы в шаблоне
        /// </summary>
        /// <param name="content"></param>
        /// <returns></returns>
        protected override string Process(string content)
        {
            // Подгатавливаем данные
            var parseRegEx = new Regex(@"\$\{([A-Za-z0-9]+?)\}");
            var sb = new StringBuilder(content);

            var ti = Model.GetType();

            // Находим все вхождения макросов по регулярному выражению
            var matches = parseRegEx.Matches(content);
            foreach (Match match in matches)
            {
                var propertyName = match.Groups[1].Value;

                // Ищем свойство у модели
                var propertyInfo = ti.GetProperty(propertyName);
                if (propertyInfo == null)
                {
                    // Похоже что данное свойство у модели не найдено
                    continue;
                }
                var value = propertyInfo.GetValue(Model,null);

                // Выполняем замену
                sb.Replace(match.Value, value != null ? value.ToString() : String.Empty);
            }

            // Отдаем преобразованный результат
            return sb.ToString();
        }

 public int RowCount(string source)
 {
   Regex rowRegex = new Regex(_rowDelimiter);
   _source = source;
   _rows = rowRegex.Matches(_source);
   return _rows.Count;
 }

        public override IEnumerable<IVertex> GetMatchingVertices(IVertexType myInterestingVertexType)
        {
            Regex regexpression;

            try
            {
                regexpression = new Regex((String)_constant.Value);
            }
            catch (Exception e)
            {
                throw new InvalidLikeOperationException(String.Format("Invalid regular expression given:{0}{1}", Environment.NewLine, e.Message), e);
            }

            foreach (var aVertex in _vertexStore.GetVerticesByTypeID(_securityToken, _transactionToken, myInterestingVertexType.ID, _property.Edition, VertexRevisionFilter))
            {
                var value = _property.Property.GetValue(aVertex);

                if (value != null && (regexpression.IsMatch((String)value)))
                {
                    yield return aVertex;
                }
            }

            yield break;
        }

 private IEnumerable<string> LoadProjects(
     string solutionPath)
 {
     const string projectRegEx = "Project\\(\"\\{[\\w-]*\\}\"\\) = \"([\\w _]*.*)\", \"(.*\\.(cs|vcx|vb)proj)\"";
     var content = File.ReadAllText(solutionPath);
     var projReg = new Regex(projectRegEx, RegexOptions.Compiled);
     var matches = projReg.Matches(content).Cast<Match>();
     var projects = matches.Select(x => x.Groups[2].Value).ToList();
     for (var i = 0; i < projects.Count; ++i)
     {
         if (!Path.IsPathRooted(projects[i]))
         {
             var folderName = Path.GetDirectoryName(solutionPath);
             if (folderName != null)
                 projects[i] = Path.Combine(folderName, projects[i]);
         }
         try
         {
             projects[i] = Path.GetFullPath(projects[i]);
         }
         catch (NotSupportedException ex)
         {
             resolver_ProgressMessageEvent($"Path: {projects[i]}, Error: {ex.Message}");
         }
     }
     return projects;
 }

        private string CheckMetaCharSetAndReEncode(Stream memStream, string html)
        {
            Match m = new Regex(@"<meta\s+.*?charset\s*=\s*(?<charset>[A-Za-z0-9_-]+)", RegexOptions.Singleline | RegexOptions.IgnoreCase).Match(html);
            if (m.Success)
            {
                string charset = m.Groups["charset"].Value.ToLower() ?? "iso-8859-1";
                if ((charset == "unicode") || (charset == "utf-16"))
                {
                    charset = "utf-8";
                }

                try
                {
                    Encoding metaEncoding = Encoding.GetEncoding(charset);
                    if (Encoding != metaEncoding)
                    {
                        memStream.Position = 0L;
                        StreamReader recodeReader = new StreamReader(memStream, metaEncoding);
                        html = recodeReader.ReadToEnd().Trim();
                        recodeReader.Close();
                    }
                }
                catch (ArgumentException)
                {
                }
            }

            return html;
        }

 public TypePattern()
 {
     IPattern descritePattern = PatternFactory.GetInstance().Get(typeof (DiscreteTypePattern));
     IPattern compositePattern = PatternFactory.GetInstance().Get(typeof (CompositeTypePattern));
     m_TextPattern = "(" + descritePattern.TextPattern + "|" + compositePattern.TextPattern + ")";
     m_Regex = new Regex(m_TextPattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
 }