public static XMLElement Parse(string content)
{
XMLElement xml = new XMLElement();
xml.ParseString(content);
return(xml);
}
private int readInfo(string content, int startIndex = 0)
{
int leftSign = -1;
int len = content.Length;
string c;
int i, j;
//第一步，寻找name
for (i = startIndex; i < len; i++)
{
c = StringUtils.Slice(content, i, i + 1);
if (c == "<")
{
//找名字的开始
for (j = i + 1; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c != " " && c != "\t")
{
i = j;
break;
}
}
//找名字的结尾
for (j = i + 1; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == " " || c == "\t" || c == "/" || c == ">")
{
this.Name = StringUtils.Slice(content, i, j);
i = j;
break;
}
}
break;
}
}
//第二步，找属性
bool end = false;
XMLAttribute attribute = null;
XMLNameSpace nameSpace = null;
for (; i < len; i++)
{
c = StringUtils.CharToString(content[i]);
if (c == "/")
{
end = true;
}
else if (c == ">")
{
i++;
break;
}
else if (c == " " || c == "\t")
{
}
else
{
//先寻找=号左边的名称
for (j = i + 1; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == "=" || c == " " || c == "\t")
{
string atrName = StringUtils.Slice(content, i, j);
if (StringUtils.Split(atrName, ":").Count == 2)
{
nameSpace = new XMLNameSpace();
this.Namesapces.Add(nameSpace);
nameSpace.Name = StringUtils.Split(atrName, ":")[1];
}
else
{
attribute = new XMLAttribute();
this.Attributes.Add(attribute);
attribute.Name = atrName;
}
break;
}
}
//寻找=号右边的字符
//寻找开始 " 符号
j++;
string startSign = "";
for (; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == "\"" || c == "'")
{
i = j + 1;
startSign = c;
break;
}
}
//寻找=号右边的字符
//寻找结束 " 符号
j++;
for (; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == startSign && StringUtils.CharToString(content[j - 1]) != "\\")
{
if (attribute != null)
{
attribute.Value = StringUtils.Slice(content, i, j);
attribute = null;
}
else
{
nameSpace.Value = StringUtils.Slice(content, i, j);
nameSpace = null;
}
i = j;
break;
}
}
}
}
if (end == true)
{
return(i);
}
//第二步，解析内容，和定位结尾
//寻找下一个<
int contentStart = 0;
for (; i < len; i++)
{
c = StringUtils.CharToString(content[i]);
if (c != " " && c != "\t")
{
contentStart = i;
i--;
break;
}
}
for (; i < len; i++)
{
c = StringUtils.CharToString(content[i]);
if (c == "<")
{
//略去前面的" "和"\t"
for (j = i + 1; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c != " " && c != "\t")
{
break;
}
}
//寻找第一个字符，如果是/则表示找到了结尾，否则继续寻找结尾
if (c == "/")
{
for (j = i + 1; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == " " || c == "\t" || c == ">")
{
string endName = StringUtils.Slice(content, i + 2, j);
if (endName != Name)
{
throw new Exception("开始标签和结尾标签不一致，开始标签：" + Name + " ，结尾标签：" + endName);
}
break;
}
}
if (this.List.Count == 0) //寻找中间的字符串内容
{
i--;
for (; i >= 0; i--)
{
c = StringUtils.CharToString(content[i]);
if (c != " " && c != "\t")
{
break;
}
}
Value += StringUtils.Slice(content, contentStart, i + 1);
}
//寻找>结束符
for (; j < len; j++)
{
c = StringUtils.CharToString(content[j]);
if (c == ">")
{
i = j + 1;
break;
}
}
end = true;
break;
}
else
{
XMLElement element = new XMLElement();
this.List.Add(element);
i = element.readInfo(content, i) - 1;
}
}
}
return(i);
}
