C# Html格式内容转Csv内容包括table(重点在rowspan和colspan合并),p,div元素

Html格式内容转Csv内容，包括table(重点在rowspan和colspan合并),p,div元素，table不能包含嵌套功能。

 /// <summary>
 /// Html格式内容转Csv内容包括table(重点在rowspan和colspan合并),p,div元素
 /// </summary>
 /// <param name="hrml"></param>
 /// <returns></returns>
 private string HtmlToCsv(string hrml)
 {
     HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
     doc.LoadHtml(hrml);
     StringBuilder sbLines = new StringBuilder();
     HtmlAgilityPack.HtmlNodeCollection tList = doc.DocumentNode.SelectNodes("//table");
     if (tList != null)
     {
         foreach (HtmlAgilityPack.HtmlNode table in tList)
         {
             sbLines.AppendLine("#flag_table#,");
             HtmlAgilityPack.HtmlNodeCollection rows = table.SelectNodes("//tr");
             if (rows != null)
             {
                 int colCount = ;
                 StringBuilder sbTable = new StringBuilder();
                 foreach (HtmlAgilityPack.HtmlNode td in rows[].ChildNodes.Where(m => m.OriginalName.ToLower() == "td"))
                 {
                     HtmlAgilityPack.HtmlAttribute attr = td.Attributes["colspan"];
                     int colspan = (attr != null) ? int.Parse(attr.Value) : ;
                     colCount = colCount + colspan;
                 }
                 int rowCount = rows.Count;

                 string[][] arr = new string[rowCount][];
                 for (int r = ; r < rowCount; r++)
                 {
                     arr[r] = new string[colCount];
                 }

                 //填充区域
                 for (int r = ; r < rowCount; r++)
                 {
                     HtmlAgilityPack.HtmlNode tr = rows[r];
                     List<HtmlAgilityPack.HtmlNode> cols = tr.ChildNodes.Where(m => m.OriginalName.ToLower() == "td").ToList();

                     int colspan = ;
                     int rowspan = ;
                     for (int c = ; c < cols.Count; c++)
                     {
                         HtmlAgilityPack.HtmlAttribute cAttr = cols[c].Attributes["colspan"];
                         colspan = (cAttr != null) ? int.Parse(cAttr.Value) : ;
                         HtmlAgilityPack.HtmlAttribute rAttr = cols[c].Attributes["rowspan"];
                         rowspan = (rAttr != null) ? int.Parse(rAttr.Value) : ;
                         string text = cols[c].InnerText.Replace("&nbsp;", "").Replace(",", "，").Replace("\r", "").Replace("\n", "").Trim();

                         if (colspan ==  && rowspan == )
                         {
                             continue;
                         }

                         bool isFirst = true;
                         int rFill = r + rowspan;
                         for (int ri = r; ri < rFill; ri++)
                         {
                             int cFill = c + colspan;
                             for (int ci = c; ci < cFill; ci++)
                             {
                                 if (isFirst)
                                 {
                                     text = (text == string.Empty) ? " " : text;
                                     arr[ri][ci] = text;
                                     isFirst = false;
                                 }
                                 else
                                 {
                                     arr[ri][ci] = string.Empty;
                                 }
                             }
                         }
                     }
                 }

                 //填充单元
                 for (int r = ; r < rowCount; r++)
                 {
                     HtmlAgilityPack.HtmlNode tr = rows[r];
                     List<HtmlAgilityPack.HtmlNode> cols = tr.ChildNodes.Where(m => m.OriginalName.ToLower() == "td").ToList();
                     Queue<string> queue = new Queue<string>();
                     for (int c = ; c < cols.Count; c++)
                     {
                         string text = cols[c].InnerText.Replace("&nbsp;", "").Replace(",", "，").Replace("\r", "").Replace("\n", "").Trim();
                         queue.Enqueue(text);
                     }
                     for (int c = ; c < colCount; c++)
                     {
                         if (arr[r][c] == null)
                         {
                             string text = queue.Count >  ? queue.Dequeue() : string.Empty;
                             arr[r][c] = text;
                         }
                         else
                         {
                             if (arr[r][c] != string.Empty)
                             {
                                 if (queue.Count > )
                                 {
                                     queue.Dequeue();
                                 }
                             }
                         }
                     }
                 }

                 //组装成cvs格式内容
                 foreach (string[] cols in arr)
                 {
                     foreach (string col in cols)
                     {
                         sbLines.Append(col + ",");
                     }
                     sbLines.AppendLine(",");
                 }
                 table.RemoveAll();
             }
         }
     }

     HtmlAgilityPack.HtmlNodeCollection pList = doc.DocumentNode.SelectNodes("//p");
     if (pList != null)
     {
         sbLines.AppendLine("#flag_text#,");
         foreach (HtmlAgilityPack.HtmlNode p in pList)
         {
             string text = p.InnerText.Replace("&nbsp;", "").Replace(",", "，").Replace("\r", "").Replace("\n", "").Trim();
             text = GetTextByHtml(text);
             if (!string.IsNullOrWhiteSpace(text))
             {
                 sbLines.Append(text + ",");
                 sbLines.AppendLine(",");
             }
             else
             {
                 sbLines.AppendLine(",");
             }
             p.RemoveAll();
         }
     }

     HtmlAgilityPack.HtmlNodeCollection dList = doc.DocumentNode.SelectNodes("//div");
     if (pList != null)
     {
         sbLines.AppendLine("#flag_text#,");
         foreach (HtmlAgilityPack.HtmlNode div in pList)
         {
             string text = div.InnerText.Replace("&nbsp;", "").Replace(",", "，").Replace("\r", "").Replace("\n", "").Trim();
             text = GetTextByHtml(text);
             if (!string.IsNullOrWhiteSpace(text))
             {
                 sbLines.Append(text + ",");
                 sbLines.AppendLine(",");
             }
             else
             {
                 sbLines.AppendLine(",");
             }
             //div.RemoveAll();
         }
     }
     return sbLines.ToString();
 }

html:

csv:

url:http://www.cnblogs.com/dreamman/p/5343924.html