//通常搜索，返回相似度最高的前top个搜索结果
public CardDescription[] NormalSearch(string SentenceString, int Top)
{
//转为简体
//string simplesen = CharacterSet.BIG5ToGB(SentenceString);
//这里应该是全角转半角
string simplesen = CharacterSet.SBCToDBC(SentenceString);
//过滤stopwords
simplesen = stopwrods.Replace(simplesen, " ");
//过滤标点符号
StringBuilder sb = new StringBuilder();
for (int i = 0; i < simplesen.Length; i++)
{
if (Char.IsLetterOrDigit(simplesen[i]))
{
sb.Append(simplesen[i]);
}
else
{
sb.Append(' ');
}
}
simplesen = sb.ToString();
if (simplesen.Length == 0)
{
return(new CardDescription[0]);
}
//清0
for (int i = 0; i < Result.Count; i++)
{
((DictSearcherNode)Result[i]).CardIndex = i;
((DictSearcherNode)Result[i]).Score = 0;
}
DoSearch(simplesen);
DictSearcherCompare dsc = new DictSearcherCompare();
Result.Sort(dsc);
ArrayList al = new ArrayList();
if (Top == 0)
{
Top = cardLibrary.GetCount();
}
for (int i = 0; i < Top; i++)
{
DictSearcherNode node = (DictSearcherNode)Result[i];
if (node.Score > 0)
{
CardDescription card = cardLibrary.GetCardByIndex(node.CardIndex);
al.Add(card);
}
else
{
break;
}
}
return((CardDescription[])al.ToArray(typeof(CardDescription)));
}
//智能扩展搜索，从鼠标位置自动句子中有效截取范围，返回相似度最高的前top个搜索结果
public SearchResult TopSearch(string SentenceString, int lLoc, int top)
{
SearchResult sr = new SearchResult();
//转为简体
//string simplesen = CharacterSet.BIG5ToGB(SentenceString);
//这里应该是全角转半角
string simplesen = CharacterSet.SBCToDBC(SentenceString);
//过滤stopwords
simplesen = stopwrods.Replace(simplesen, " ");
//过滤标点符号
StringBuilder sb = new StringBuilder();
int skip = 0;
for (int i = 0; i < simplesen.Length; i++)
{
if (Char.IsLetterOrDigit(simplesen[i]))
{
sb.Append(simplesen[i]);
}
else
{
sb.Append(' ');
if (i <= lLoc)
{
skip++;
}
}
}
simplesen = sb.ToString();
if (simplesen.Length == 0)
{
return(sr);
}
//清0
for (int i = 0; i < Result.Count; i++)
{
DictSearcherNode node = (DictSearcherNode)Result[i];
node.CardIndex = i;
node.Score = 0;
}
Hashtable SearchedKeyword = new Hashtable();
string lMainWord = "";
int lMainWordLenth = 0;
string rMainWord = "";
int rMainWordLenth = 0;
for (int i = lLoc; i >= 0; i--)
{
string s = simplesen.Substring(i, lLoc - i + 1);
string trims = GetTokenizerText(s);
if (trims.Length > 0 && !SearchedKeyword.ContainsKey(trims))
{
SearchedKeyword.Add(trims, 0);
if (DoSearch(s) > 0)
{
if (trims.Length > lMainWordLenth)
{
int blank = 0;
while (s[blank] == ' ')
{
blank++;
}
lMainWord = SentenceString.Substring(i + blank, lLoc - i + 1 - blank);
lMainWordLenth = trims.Length;
}
}
else
{
break;
}
}
}
for (int i = lLoc + 1; i < simplesen.Length; i++)
{
string s = simplesen.Substring(lLoc, i - lLoc + 1);
string trims = GetTokenizerText(s);
if (trims.Length > 0 && !SearchedKeyword.ContainsKey(trims))
{
SearchedKeyword.Add(trims, 0);
if (DoSearch(s) > 0)
{
if (trims.Length > rMainWordLenth)
{
int blank = 0;
while (s[blank] == ' ')
{
blank++;
}
rMainWord = SentenceString.Substring(lLoc + blank, i - lLoc + 1 - blank);
rMainWordLenth = trims.Length;
}
}
else
{
break;
}
}
}
DictSearcherCompare dsc = new DictSearcherCompare();
Result.Sort(dsc);
sr.Cards = new CardDescription[top];
if (rMainWord.Length > 1)
{
if (GetTokenizerText(SentenceString.Substring(lLoc, 1)).Length > 0)
{
sr.KeyWord = lMainWord + rMainWord.Substring(1);
}
else
{
sr.KeyWord = lMainWord + rMainWord;
}
}
else
{
sr.KeyWord = lMainWord;
}
for (int i = 0; i < top; i++)
{
sr.Cards[i] = cardLibrary.GetCardByIndex(((DictSearcherNode)Result[i]).CardIndex);
}
return(sr);
}
