需要匹配csv和模板字符串生成xml

Question

我需要根据匹配 csvString 和模板字符串中的确切标头值来生成 XML。请指教。

实现此目的的代码：（我在下面编写了将 csvString 转换为 XML 的代码，并且在 csvString 没有标题列且只有数据行的情况下工作。需要实现进行匹配并分配值）

//Defining the final template
            string template = "Header2,Header3,Header1,Header4";
            //Defining the csvString. the 1st line is the header. each line is separated by '///'. each column is separated by ','  
            string csvString = "row11,row12,row13,row14///row21,row22,row23,row24///row31,row32,row33,row34";

            string[] split = template.Split(',');

            // Read into an array of strings.
            string[] source = csvString.Split(new string[] { "///" }, StringSplitOptions.None);
            XElement cust = new XElement("Clients",
            from str in source
            let fields = str.Split(',')
            select new XElement("Client", split.Zip(fields, (name, value) => new XElement(name, value)))
        );

任何帮助或指向正确方向的指针都会很有用。 需要让它匹配，例如，基于此：

string csvString = "Header1,Header2,Header3,Header4///row11,row12,row13,row14///row21,row22,row23,row24///row31,row32,row33,row34";

Answer 1

我认为对于这种特定情况，您可以实现一个自定义比较器来对标题字符串进行排序，并按尾随数字对标题数组进行排序。行看起来已经排序，所以它们稍后会匹配。

这是自定义字符串比较器：

public class ByNumberAtStringEnd : IComparer<string>
{
    public int Compare(string x, string y)
    {
        var num1 = Int32.Parse(System.Text.RegularExpressions.Regex.Match(x, "\\d+$").Value);
        var num2 = Int32.Parse(System.Text.RegularExpressions.Regex.Match(y, "\\d+$").Value);
        return num1.CompareTo(num2);
     }
}

在代码中使用：

...
string template = "Header2,Header3,Header1,Header4";
//Defining the csvString. the 1st line is the header. each line is separated by '///'. each column is separated by ','  
string csvString = "row11,row12,row13,row14///row21,row22,row23,row24///row31,row32,row33,row34";
List<string> split = template.Split(',').ToList();
// --------------------------------------------- SORT THE HEADERS!!!
split.Sort(new ByNumberAtStringEnd());
// Read into an array of strings.
string[] source = csvString.Split(new string[] { "///" }, StringSplitOptions.None);
var elements = from str in source
               let fields = str.Split(',').ToList()
               select new XElement("Client", split.Zip(fields, (name, value2) => new XElement(name, value2)));

XElement cust = new XElement("Clients");
cust.Add(elements);

输出：

<Clients>
  <Client>
    <Header1>row11</Header1>
    <Header2>row12</Header2>
    <Header3>row13</Header3>
    <Header4>row14</Header4>
  </Client>
  <Client>
    <Header1>row21</Header1>
    <Header2>row22</Header2>
    <Header3>row23</Header3>
    <Header4>row24</Header4>
  </Client>
  <Client>
    <Header1>row31</Header1>
    <Header2>row32</Header2>
    <Header3>row33</Header3>
    <Header4>row34</Header4>
  </Client>
</Clients>