// 搜索
private List <LangLine> Search(GetMatchTextDelegate GetMatchText,
bool useRegex, string keyword, bool ignoreCase)
{
if (useRegex)
{
return(SearchRegex(GetMatchText, keyword, ignoreCase));
}
List <LangLine> results = new List <LangLine>();
foreach (LangLine langLine in langLines)
{
// 如果找到就添加
if (IsMatch(GetMatchText(langLine), keyword, ignoreCase))
{
results.Add(langLine);
}
if (results.Count >= MAX_RESULT_NUM)
{
results.Add(overflow);
break;
}
}
return(results);
}
// 正则搜索
private List <LangLine> SearchRegex(GetMatchTextDelegate GetMatchText, string pattern, bool ignoreCase)
{
RegexOptions option = RegexOptions.Compiled;
if (ignoreCase)
{
option |= RegexOptions.IgnoreCase;
}
Regex r = new Regex(pattern, option);
// 第一遍查找
// 因为正则查找太慢，所以先大致找一次
string[] keywords = pattern
.Trim('$')
.Trim('^')
.Split(new string[] { ".*" }, StringSplitOptions.RemoveEmptyEntries);
List <LangLine> firstPassResults = new List <LangLine>();
foreach (LangLine langLine in langLines)
{
foreach (string keyword in keywords)
{
if (IsMatch(GetMatchText(langLine), keyword, ignoreCase))
{
firstPassResults.Add(langLine);
break;
}
}
}
// 第二遍查找
List <LangLine> results = new List <LangLine>();
foreach (LangLine langLine in firstPassResults)
{
// 如果找到就添加
if (IsMatchRegex(GetMatchText(langLine), r))
{
results.Add(langLine);
}
if (results.Count >= MAX_RESULT_NUM)
{
results.Add(overflow);
break;
}
}
return(results);
}