Class Utility

SmartChineseAnalyzer utility constants and methods

Note

This API is experimental and might change in incompatible ways in the next release.

Inheritance
System.Object
Utility
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Analysis.Cn.Smart
Assembly: Lucene.Net.Analysis.SmartCn.dll
Syntax
public static class Utility

Fields

| Improve this Doc View Source

COMMON_DELIMITER

Delimiters will be filtered to this character by SegTokenFilter

Declaration
public static readonly char[] COMMON_DELIMITER
Field Value
Type Description
System.Char[]
| Improve this Doc View Source

END_CHAR_ARRAY

Declaration
public static readonly char[] END_CHAR_ARRAY
Field Value
Type Description
System.Char[]
| Improve this Doc View Source

MAX_FREQUENCE

Maximum bigram frequency (used in the smoothing function).

Declaration
public static readonly int MAX_FREQUENCE
Field Value
Type Description
System.Int32
| Improve this Doc View Source

NUMBER_CHAR_ARRAY

Declaration
public static readonly char[] NUMBER_CHAR_ARRAY
Field Value
Type Description
System.Char[]
| Improve this Doc View Source

SPACES

Space-like characters that need to be skipped: such as space, tab, newline, carriage return.

Declaration
public static readonly string SPACES
Field Value
Type Description
System.String
| Improve this Doc View Source

START_CHAR_ARRAY

Declaration
public static readonly char[] START_CHAR_ARRAY
Field Value
Type Description
System.Char[]
| Improve this Doc View Source

STRING_CHAR_ARRAY

Declaration
public static readonly char[] STRING_CHAR_ARRAY
Field Value
Type Description
System.Char[]

Methods

| Improve this Doc View Source

CompareArray(Char[], Int32, Char[], Int32)

Compare two arrays starting at the specified offsets.

Declaration
public static int CompareArray(char[] larray, int lstartIndex, char[] rarray, int rstartIndex)
Parameters
Type Name Description
System.Char[] larray

left array
System.Int32 lstartIndex

start offset into larray
System.Char[] rarray

right array
System.Int32 rstartIndex

start offset into rarray
Returns
Type Description
System.Int32

0 if the arrays are equal，1 if larray > rarray, -1 if larray < rarray
| Improve this Doc View Source

CompareArrayByPrefix(Char[], Int32, Char[], Int32)

Compare two arrays, starting at the specified offsets, but treating shortArray as a prefix to longArray. As long as shortArray is a prefix of longArray, return 0. Otherwise, behave as CompareArray(Char[], Int32, Char[], Int32).

Declaration
public static int CompareArrayByPrefix(char[] shortArray, int shortIndex, char[] longArray, int longIndex)
Parameters
Type Name Description
System.Char[] shortArray

prefix array
System.Int32 shortIndex

offset into shortArray
System.Char[] longArray

long array (word)
System.Int32 longIndex

offset into longArray
Returns
Type Description
System.Int32

0 if shortArray is a prefix of longArray, otherwise act as CompareArray(Char[], Int32, Char[], Int32).
| Improve this Doc View Source

GetCharType(Char)

Return the internal CharType constant of a given character.

Declaration
public static CharType GetCharType(char ch)
Parameters
Type Name Description
System.Char ch

input character
Returns
Type Description
CharType

Constant from CharType describing the character type.
See Also