public YamlNode(YamlData data, YamlNode parent)
{
Data = data;
Parent = parent;
Children = new List <YamlNode>();
}
/// <summary>
/// 检测获取yaml的编写不规范，以及修复后的yaml树
/// </summary>
/// <param name="filename"></param>
/// <param name="newlist"></param>
/// <returns></returns>
public static ObservableCollection <ErrorItem> Parse(string filename, out List <string> newlist)
{
var lines = File.ReadAllLines(filename);
//如果包含TAB，可以考虑报异常
newlist = new List <string>();
var map = new Dictionary <string, string>();
var errorlist = new ObservableCollection <ErrorItem>(); //错误项
var currentNode = new YamlNode(new YamlData(), null);
var headNode = currentNode;
var currentSpan = -1;
var i = 0; //行号
foreach (var l in lines)
{
i++;
var line = l;
if (string.IsNullOrEmpty(line) || !line.Contains(":") || line[0] == '#')
{
newlist.Add(line);
continue;
}
var comment = string.Empty;
if (Regex.IsMatch(line, "^\\s*#"))
{
//去掉注释
var commentTokens = line.Split('#');
line = commentTokens[0];
comment = "#" + commentTokens[1];
if (!line.Contains(":"))
{
errorlist.Add(new ErrorItem {
ErrorCode = 5, Line = i
});
newlist.Add(comment);
continue;
}
}
var match = Regex.Match(line, "([\\w.]*?):\\s*(.*)");
var key = match.Groups[1].Value.Trim();
if (key.Equals(string.Empty)) //没有键
{
errorlist.Add(new ErrorItem {
ErrorCode = 1, Line = i
});
}
var value = match.Groups[2].Value.Trim();
//开头缩进有tab
if (Regex.IsMatch(line, "^\\s*\\t+\\s*"))
{
errorlist.Add(new ErrorItem {
ErrorCode = 3, Line = i
});
}
//替换tab
Regex.Replace(line, @"\t", " ");
var span = GetSpan(line);
if (span <= currentSpan)
{
while (span <= currentSpan)
{
currentNode = currentNode.Parent;
currentSpan = currentNode.Data.Span;
}
}
//同一层级统一缩进
var newspan = currentNode.Children.Count > 0 ? currentNode.Children[0].Data.Span : span;
var node = new YamlNode(new YamlData(key, newspan, key, value, i), currentNode);
if (!string.IsNullOrEmpty(node.Parent.Data.Key))
{
node.Data.Key = node.Parent.Data.Key + "." + key;
}
var dataValue = node.Data.Value;
if (!string.IsNullOrEmpty(dataValue))
{
//双引号内不转义
//if (Regex.IsMatch(dataValue, "\".*?\""))
//{
// dataValue = dataValue.Replace("\"", "");
// dataValue = dataValue.Replace("\\n", "\n");
//}
if (map.ContainsKey(node.Data.Key))
{
errorlist.Add(new ErrorItem {
ErrorCode = 0004, Line = i
});
}
else
{
map.Add(node.Data.Key, dataValue);
}
}
currentNode.Children.Add(node);
if (currentSpan <= span)
{
currentSpan = span;
currentNode = node;
}
var datakey = node.Data.Name;
if (errorlist.Count > 0 && errorlist.Last().Line == i)
{
if (errorlist.Last().ErrorCode == 1) //没有键
{
if (comment != string.Empty)
{
newlist.Add(comment);
}
continue;
}
//if (errorlist.Last().ErrorCode == 2)//没有值
//{
// dataValue = "value needed";
//}
if (errorlist.Last().ErrorCode == 4) //重复key
{
datakey = "duplicate_" + datakey;
}
}
var newline = new string(' ', node.Data.Span) + $"{datakey}: {dataValue} {comment}";
newlist.Add(newline);
}
//遍历获取无值的叶节点
currentNode = headNode;
var stack = new Stack <YamlNode>();
stack.Push(currentNode);
while (stack.Count > 0)
{
currentNode = stack.Pop();
if (currentNode.Children.Count > 0)
{
foreach (var c in currentNode.Children)
{
stack.Push(c);
}
}
else
{
if (string.IsNullOrEmpty(currentNode.Data.Value))
{
errorlist.Add(new ErrorItem {
ErrorCode = 2, Line = currentNode.Data.Line
});
}
}
}
return(errorlist);
}