using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using PanGu.Dict;
using PanGu.Framework;
using PanGu.Match;
using PanGu.Setting;
using PanGu.HighLight;
using Lucene.Net.Analysis;
using System.IO;
using PanGu;
using System.Configuration;
namespace Pangu.Helper
{
public class PanguHelper
{
private volatile static PanguHelper _instance = null;
private static readonly object lockHelper = new object();
private PanguHelper() { }
/// <summary>
[Default uses pangu.xml profile under the same path]
/// </summary>
/// <returns></returns>
public static PanguHelper ShareHelper
{
get
{
if (_instance == null)
{
lock (lockHelper)
{
if (_instance == null)
{
_instance = new PanguHelper();
string configFile = ConfigurationManager.AppSettings["PANGU_CONFIG"] + "";
if (configFile != "")
{
_instance. Use(configFile);
}
}
}
}
return _instance;
}
}
/// <summary>
Initialize the specified configuration file
/// </summary>
<param name="configFile"> pangu configuration file</param>
public void Use(string configFile)
{
PanGu.Segment.Init(configFile);
}
/// <summary>
Get a part-of-speech description
/// </summary>
<param name="pos"> part of speech enumeration</param>
/// <returns></returns>
public string GetPosDescrip{filter}t(POS pos)
{
switch (pos)
{
case POS. POS_UNK: return "unknown part of speech;"
case POS. POS_D_K: return "trailing component";
case POS. POS_D_H: return "preceding component";
case POS. POS_A_NZ: return "other proper name";
case POS. POS_A_NX: return "foreign character";
case POS. POS_A_NR: return "person's name";
case POS. POS_D_Z: return "status word";
case POS. POS_A_NT: return "body of institutions";
case POS. POS_A_NS: return "place name";
case POS. POS_D_Y: return "mood word mood morpheme";
case POS. POS_D_X: return "non-morphemic word";
case POS. POS_D_W: return "punctuation";
case POS. POS_D_T: return "word of time";
case POS. POS_D_S: return "place word";
case POS. POS_D_V: return "verb morpheme";
case POS. POS_D_U: return "particle particle morpheme";
case POS. POS_D_R: return "pronoun pronoun morpheme";
case POS. POS_A_Q: return "quantifier quantifier morpheme";
case POS. POS_D_P: return "preposition";
case POS. POS_D_MQ: return "quantifier";
case POS. POS_A_M: return "numeral, numeral, numeral";
case POS. POS_D_O: return "onomatopoeia";
case POS. POS_D_N: return "noun morpheme";
case POS. POS_D_F: return "azimuth word azimuth morpheme";
case POS. POS_D_E: return "interjection morpheme";
case POS. POS_D_L: return "idiom";
case POS. POS_D_I: return "idiom";
case POS. POS_D_D: return "adverb adverb morpheme";
case POS. POS_D_C: return "conjunctive conjunction morpheme";
case POS. POS_D_B: return "to distinguish words to distinguish morphemes";
case POS. POS_D_A: return "adjective morpheme";
}
return "unknown part of speech";
}
/// <summary>
Get the participle [Original Wordinfo]
/// </summary>
<param name="content"> the content of the word to be separated</param>
<param name="matchOptions"> use the matching options</param>
<param name="matchParameter"> use the match parameter</param>
/// <returns></returns>
public ICollection<WordInfo> GetSegmentWords(string content, MatchOptions matchOptions = null,
MatchParameter matchParameter = null)
{
Segment segment = new Segment();
ICollection<WordInfo> words = segment. DoSegment(content, matchOptions, matchParameter);
return words;
}
/// <summary>
Get participles
/// </summary>
<param name="content"> the content of the word to be separated</param>
<param name="matchOptions"> Match options are used, not by default</param>
<param name="matchParameter" > use the matching parameter, not by default</param>
public List<string> GetSplitWords(string content, MatchOptions matchOptions = null, MatchParameter matchParameter = null)
{
Segment segment = new Segment();
ICollection<WordInfo> words = segment. DoSegment(content,matchOptions,matchParameter);
List<string> list = new List<string>();
foreach (WordInfo word in words)
{
list. Add(word. Word);
}
return list;
}
/// <summary>
Obtain the participle of the specified word frequency
/// </summary>
<param name="content"> the content of the word to be separated</param>
<param name="frequency"> word frequency</param>
<param name="matchOptions"> Match options are used, not by default</param>
<param name="matchParameter" > use the matching parameter, not by default</param>
/// <returns></returns>
public List<string> GetSplitWordsByFrequency(string content, double frequency, MatchOptions matchOptions = null,
MatchParameter matchParameter = null)
{
Segment segment = new Segment();
ICollection<WordInfo> words = segment. DoSegment(content, matchOptions, matchParameter);
List<string> list = new List<string>();
foreach (WordInfo word in words)
{
if (frequency == word. Frequency)
{
list. Add(word. Word);
}
}
return list;
}
/// <summary>
Get a participle with a specified weight
/// </summary>
<param name="content"> the content of the word to be separated</param>
<param name="rank"> weight</param>
<param name="matchOptions"> Match options are used, not by default</param>
<param name="matchParameter" > use the matching parameter, not by default</param>
/// <returns></returns>
public List<string> GetSplitWordsByRank(string content, int rank, MatchOptions matchOptions = null,
MatchParameter matchParameter = null)
{
Segment segment = new Segment();
ICollection<WordInfo> words = segment. DoSegment(content, matchOptions, matchParameter);
List<string> list = new List<string>();
foreach (WordInfo word in words)
{
if (rank == word. Rank)
{
list. Add(word. Word);
}
}
return list;
}
/// <summary>
Highlight
/// </summary>
<param name="keyword"> the string to highlight</param>
/// <param name="content">content</param>
<param name="fragmentSize"> the number of characters for each summary field</param>
<returns>Highlighted content</returns>
public static string HighLight(string keyword, string content, int fragmentSize)
{
Create an HTML code with the parameter highlighting the search term
SimpleHTMLFormatter simpleHTMLFormatter = new SimpleHTMLFormatter("<font color='red'>", "</font>");
Create highlighting, enter HTML code and Pangu object Semgent
Highlighter highter = new Highlighter(simpleHTMLFormatter, new Segment());
Set the number of characters for each summary field
highter. FragmentSize = fragmentSize;
string highlightStr = highter. GetBestFragment(keyword, content);
if (string. IsNullOrEmpty(highlightStr))
{
return content;
}
return highlightStr;
}
}
}
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Posted on 7/17/2017 10:02:38 AM
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Posted on 7/17/2017 10:55:05 AM
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