internal void Process(Tag.Tag tag)
{
List <string> list = null;
PermissionType pType;
Enum.TryParse <PermissionType>(tag.TagType.ToString(), out pType);
if (dicTable.TryGetValue(pType, out list))
{
list.AddRange(tag.Table);
}
else
{
list = new List <string>(tag.Table);
dicTable[pType] = list;
}
if (tag.Alias.Count > 0)
{
foreach (KeyValuePair <string, string> kv in tag.Alias)
{
dicA[kv.Key] = kv.Value;
}
}
}
public List <Tag.Tag> GetTags()
{
List <Tag.Tag> tags = new List <Tag.Tag>();
TagTreeNode next = head.NextNode;
TagTreeNode last = null;
TagTreeNode cur = null;
TagTreeNode lastPre = null;
Tag.Tag tag = new Tag.Tag();
try
{
tag.TagType = (TagType)Enum.Parse(typeof(TagType), head.NodeKey);
}
catch
{
throw new Exception("SQL异常");
}
while (next != null)
{
if (TagFactory.defaultTag == next.NodeKey)
{
//说明是数据
if (null == last)
{
cur = head;
}
else
{
cur = last;
}
//
switch (cur.NodeKey)
{
case "select":
tag.Fields.AddRange(next.NodeData);
break;
case "from":
case "table":
case "into":
case "join":
tag.Table.AddRange(next.NodeData);
break;
case "l_clause":
{
if (lastPre != null && lastPre.NodeKey == "into")
{
tag.Fields.AddRange(next.NodeData);
}
}
break;
case "as":
{
if (lastPre != null && lastPre.NodeData.Count > 0)
{
tag.Alias[lastPre.NodeData[lastPre.NodeData.Count - 1]] = next.NodeData[0];
}
}
break;
case "field":
{
if (cur.NodeData.Count > 0)
{
tag.Alias[cur.NodeData[cur.NodeData.Count - 1]] = next.NodeData[0];
}
}
break;
}
//
}
else
{
TagType tagType;
if (Enum.TryParse <TagType>(next.NodeKey, out tagType))
{
//说明是操作类关键词
tags.Add(tag);
tag = new Tag.Tag();
tag.TagType = tagType;
}
}
lastPre = last;
last = next;
next = next.NextNode;
}
//
tags.Add(tag);
return(tags);
}
