/// <summary>
/// 文本语法高亮的方法
/// </summary>
/// <param name="text">输入的文本</param>
/// <param name="keys">搜索关键字 需要高亮的文本</param>
/// <param name="analyEnum">选择分词方式</param>
/// <returns>成功返回高亮的文本 失败返回空字符串</returns>
public static string HightLightText(string text, string keys, AnalyzerEnum analyEnum)
{
string _hightText = string.Empty;
SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color=\"red\">", "</font>");
Highlighter highlighter = null;
switch (analyEnum)
{
case AnalyzerEnum.SimpleAnalyzer:
highlighter = new Highlighter(simpleHTMLFormatter, new SimpleAnalyzer());
break;
case AnalyzerEnum.EnglishAnalyzer:
EnglishAnalyzer engEa = new EnglishAnalyzer();
engEa.Init();
highlighter = new Highlighter(simpleHTMLFormatter, engEa);
break;
case AnalyzerEnum.PanGuSegment:
highlighter = new Highlighter(simpleHTMLFormatter, new PanGuAnalyzer());
break;
default:
break;
}
if (highlighter != null)
{
highlighter.FragmentSize = 500000;
_hightText = highlighter.GetBestFragment(keys, text);
}
return(_hightText);
}
public AnalyzerBase(AnalyzerEnum type)
{
if(type == null)
throw new ArgumentNullException("type");
Type = type.ToString();
}
private string _text; //处理关键字
#endregion
#region 构造函数
/// <summary>
/// 分词服务
/// </summary>
/// <param name="text">需要分词得字符串</param>
/// <param name="analyEnu">分词类型</param>
public WrodAnalyzerServer(string text, AnalyzerEnum analyEnu)
{
switch (analyEnu)
{
case AnalyzerEnum.SimpleAnalyzer:
_iAnalyzer = new SimpleAnalyzer();
break;
case AnalyzerEnum.EnglishAnalyzer:
_iAnalyzer = new EnglishAnalyzer();
break;
case AnalyzerEnum.PanGuSegment:
_iAnalyzer = new PanGuAnalyzer();
break;
default:
break;
}
_wordList = _iAnalyzer.Tokenize(text);
_text = text;
}
public LanguageBase(AnalyzerEnum type)
: base(type)
{ }
public StemExclusionLanguageBase(AnalyzerEnum type)
: base(type)
{ }
