private static void AddInMap(string prefix, string tail, string code, SortedDictionary <string, AreaInfo> map)
{
AreaInfo ai;
if (map.TryGetValue(prefix, out ai))
{
ai.AddTailCode(tail, code);
}
else
{
ai = new AreaInfo();
ai.AddTailCode(tail, code);
map[prefix] = ai;
}
}
public static bool Load(string path)
{
try
{
_trie = new DoubleArrayTrie <AreaInfo>();
var valueArr = LoadDat(path + ".value.dat");
if (valueArr != null)
{
if (_trie.Load(path + ".trie.dat", valueArr))
{
return(true);
}
}
// 读取txt文件
var map = new SortedDictionary <string, AreaInfo>(StrComparer.Default);
foreach (var line in File.ReadLines(path))
{
if (string.IsNullOrWhiteSpace(line))
{
continue;
}
var segs = line.Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
var code = segs[0];
for (int i = 1; i < segs.Length; i++)
{
var name = segs[i];
if (Invalids.Contains(name))
{
continue; // 跳过无效地区名
}
if (name.Length == 2)
{
AddInMap(name, "", code, map);
}
else
{
var lastChar = name[name.Length - 1];
if ("市省县区州旗盟".Contains(lastChar))
{
AddInMap(name.Substring(0, name.Length - 1), lastChar.ToString(), code, map);
}
else if (name.Length < 9)
{
AddInMap(name, "", code, map);
}
var lastTwo = name.Substring(2);
var prevs = name.Substring(0, name.Length - 2);
if (Invalids.Contains(lastTwo))
{
AddInMap(prevs, lastTwo, code, map);
if (prevs.Length == 3 && "市省".Contains(prevs[2]))
{
AddInMap(name.Substring(0, 2), lastTwo, code, map);
}
}
if (lastChar == '旗')
{
var sublast = name[2];
if ("前后左中右特".Contains(sublast))
{
AddInMap(prevs, "旗", code, map);
}
}
var subLastTwo = name.Substring(name.Length - 3, 2);
if (subLastTwo == "自治")
{
prevs = name.Substring(0, name.Length - 3);
var ends = name.Substring(name.Length - 3);
AddInMap(prevs, ends, code, map);
if (prevs.Length >= 4)
{
for (int k = 2; k < prevs.Length - 1; k++)
{
if (k < prevs.Length - 3)
{
if (Nationalities.Contains(prevs.Substring(k, 4)))
{
AddInMap(prevs.Substring(0, k), ends, code, map);
AddInMap(prevs.Substring(0, k) + "自治", lastChar.ToString(), code, map);
break;
}
}
if (k < prevs.Length - 2)
{
if (Nationalities.Contains(prevs.Substring(k, 3)))
{
AddInMap(prevs.Substring(0, k), ends, code, map);
AddInMap(prevs.Substring(0, k) + "自治", lastChar.ToString(), code, map);
break;
}
}
if (Nationalities.Contains(prevs.Substring(k, 2)))
{
AddInMap(prevs.Substring(0, k), ends, code, map);
AddInMap(prevs.Substring(0, k) + "自治", lastChar.ToString(), code, map);
break;
}
}
}
}
}
}
}
_trie = new DoubleArrayTrie <AreaInfo>();
_trie.Build(map);
valueArr = new AreaInfo[map.Count];
int m = 0;
foreach (var v in map.Values)
{
valueArr[m++] = v;
}
var fs = new FileStream(path + ".trie.dat", FileMode.Create, FileAccess.Write);
_trie.Save(fs);
fs.Close();
SaveDat(path + ".value.dat", valueArr);
return(true);
}
catch (Exception e)
{
return(false);
}
}