由于C# XML的管理类没怎么看明白，自己写了实用。
首先是节点UDataElement，是XML数据中的一个节点
节点又可以包含节点。嵌套的包含。
还可以添加子节点
public class UDataElement
{
public List Items { get; protected set; }
public bool HasItem
{
get
{
return Items.Count != 0;
}
}
public string Name { get; set; }
public string Value { get; set; }
public UDataElement()
{
this.Items = new List();
this.Name = string.Empty;
this.Value = string.Empty;
}
public virtual void SetData(string name, string value)
{
foreach (UDataElement element in Items)
{
if (element.Name == name)
{
element.Value = value;
}
}
}
public virtual void AddData(string name, string value)
{
UDataElement ue = new UDataElement();
ue.Name = name;
ue.Value = value;
Items.Add(ue);
}
接下来是文档分析类，作用是分析XML文档（自己定义的格式）
public class UDataParser
{
private List mData;
private int mRow;
private int mCol;
private int mOldRow;
private int mOldCol;
private int mSaveRow;
private int mSaveCol;
private int mSaveOldRow;
private int mSaveOldCol;
private bool mEndOfData;
public UDataParser()
{
this.mData = new List();
this.mRow = 0;
this.mCol = 0;
this.mOldRow = 0;
this.mOldCol = 0;
this.mEndOfData = false;
}
public void Load(string filePath)
{
try
{
StreamReader fp = new StreamReader(filePath, Encoding.Default);
string line = string.Empty;
while (!fp.EndOfStream)
{
line = fp.ReadLine();
if (line == string.Empty)
{
continue;
}
mData.Add(line);
}
fp.Close();
fp.Dispose();
}
catch (Exception ex)
{
throw ex;
}
}
public string GetNextData()
{
StringBuilder result = new StringBuilder();
bool inString = false;
while (!mEndOfData)
{
char ch = GetNextChar();
if (ch == (char)0)
{
break;
}
switch (ch)
{
case '<':
case '>':
case '[':
case ']':
case ' ':
case '=':
case '/':
if (inString)
{
result.Append(ch);
}
else
{
if (result.Length == 0)
{
return ch.ToString();
}
else
{
BackToLast();
if (result[0] == '"')
{
result.Remove(0, 1);
}
if (result[result.Length - 1] == '"')
{
result.Remove(result.Length - 1, 1);
}
return result.ToString();
}
}
break;
case '\t':
break;
case '\n':
break;
case '"':
inString = !inString;
result.Append(ch);
break;
case '\\':
result.Append(GetNextChar());
break;
default:
result.Append(ch);
break;
}
}
return result.ToString();
}
public string GetNextData(string data)
{
string str = GetNextData();
if (str == data)
{
return str;
}
throw new Exception("Unexpect " + data);
}
public string PeekNextData()
{
int col = mCol;
int row = mRow;
int oldCol = mOldCol;
int oldRow = mOldRow;
string data = GetNextData();
mCol = col;
mRow = row;
mOldCol = oldCol;
mOldRow = oldRow;
return data;
}
public void Save()
{
mSaveCol = mCol;
mSaveRow = mRow;
mSaveOldCol = mOldCol;
mSaveOldRow = mOldRow;
}
public void Load()
{
mCol = mSaveCol;
mRow = mSaveRow;
mOldCol = mSaveOldCol;
mOldRow = mSaveOldRow;
}
private char GetNextChar()
{
if (mEndOfData)
{
return (char)0;
}
mOldCol = mCol;
mOldRow = mRow;
if (mRow >= mData.Count)
{
mEndOfData = true;
return (char)0;
}
if (mCol >= mData[mRow].Length)
{
mCol = 0;
mRow++;
if (mRow >= mData.Count)
{
mEndOfData = true;
return (char)0;
}
}
return mData[mRow][mCol++];
}
private void BackToLast()
{
mCol = mOldCol;
mRow = mOldRow;
}
}
接下来是XML文档 UDataDocument，可以保存，载入文档。。。
public class UDataDocument : UDataElement
{
private UDataParser mParser;
public UDataDocument()
{
this.mParser = new UDataParser();
}
public void Load(string filePath)
{
mParser.Load(filePath);
UDataElement Environment = ParseElement();
UDataElement Editor = ParseElement();
UDataElement Language = ParseElement();
Items.Add(Environment);
Items.Add(Editor);
Items.Add(Language);
}
public void Save(string filePath)
{
try
{
StreamWriter fp = new StreamWriter(filePath, false, Encoding.Default);
SaveElement(fp, this, 0);
fp.Close();
fp.Dispose();
}
catch (Exception ex)
{
throw ex;
}
}
private UDataElement ParseElement()
{
try
{
UDataElement element = new UDataElement();
mParser.GetNextData("[");
element.Name = mParser.GetNextData();
element.Value = string.Empty;
mParser.GetNextData("]");
while (true)
{
string nextData = mParser.PeekNextData();
switch (nextData)
{
case "<":
{
UDataElement de = new UDataElement();
mParser.GetNextData("<");
mParser.GetNextData("Name");
mParser.GetNextData("=");
de.Name = mParser.GetNextData();
mParser.GetNextData(" ");
mParser.GetNextData("Value");
mParser.GetNextData("=");
de.Value = mParser.GetNextData();
mParser.GetNextData(">");
element.Items.Add(de);
}
break;
case "[":
mParser.Save();
mParser.GetNextData("[");
if (mParser.PeekNextData() == "/")
{
mParser.GetNextData("/");
mParser.GetNextData(element.Name);
mParser.GetNextData("]");
return element;
}
else
{
mParser.Load();
element.Items.Add(ParseElement());
}
break;
default:
break;
}
}
}
catch (Exception ex)
{
throw ex;
}
}
private void SaveElement(StreamWriter fp, UDataElement element, int tab)
{
try
{
foreach (UDataElement ue in element.Items)
{
for (int i = 0; i < tab; i++)
{
fp.Write('\t');
}
if (ue.HasItem)
{
fp.WriteLine("[" + ue.Name + "]");
SaveElement(fp, ue, tab + 1);
for (int i = 0; i < tab; i++)
{
fp.Write('\t');
}
fp.WriteLine("[/" + ue.Name + "]");
fp.WriteLine();
}
else
{
fp.WriteLine("");
}
}
}
catch (Exception ex)
{
throw ex;
}
}
}
自定义XML格式如下
[Environment]
[/Environment]
[Editor]
[/Editor]
[Language]
[C#]
[/C#]
[/Language]