Class Character
Mimics Java's Character class.
Inheritance
System.Object
Character
Assembly: Lucene.Net.dll
Syntax
public class Character : object
Fields
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MAX_CODE_POINT
Declaration
public const int MAX_CODE_POINT = null
Field Value
| Type |
Description |
| System.Int32 |
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MAX_HIGH_SURROGATE
Declaration
public const char MAX_HIGH_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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MAX_LOW_SURROGATE
Declaration
public const char MAX_LOW_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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MAX_RADIX
Declaration
public const int MAX_RADIX = null
Field Value
| Type |
Description |
| System.Int32 |
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MAX_SURROGATE
Declaration
public const char MAX_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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MIN_CODE_POINT
Declaration
public const int MIN_CODE_POINT = null
Field Value
| Type |
Description |
| System.Int32 |
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MIN_HIGH_SURROGATE
Declaration
public const char MIN_HIGH_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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MIN_LOW_SURROGATE
Declaration
public const char MIN_LOW_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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MIN_RADIX
Declaration
public const int MIN_RADIX = null
Field Value
| Type |
Description |
| System.Int32 |
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MIN_SUPPLEMENTARY_CODE_POINT
Declaration
public const int MIN_SUPPLEMENTARY_CODE_POINT = null
Field Value
| Type |
Description |
| System.Int32 |
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MIN_SURROGATE
Declaration
public const char MIN_SURROGATE = null
Field Value
| Type |
Description |
| System.Char |
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Methods
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CharCount(Int32)
Declaration
public static int CharCount(int codePoint)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointAt(ICharSequence, Int32)
Declaration
public static int CodePointAt(ICharSequence seq, int index)
Parameters
Returns
| Type |
Description |
| System.Int32 |
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CodePointAt(StringBuilder, Int32)
Declaration
public static int CodePointAt(StringBuilder seq, int index)
Parameters
| Type |
Name |
Description |
| StringBuilder |
seq |
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| System.Int32 |
index |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointAt(Char, Char)
Declaration
public static int CodePointAt(char high, char low)
Parameters
| Type |
Name |
Description |
| System.Char |
high |
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| System.Char |
low |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointAt(Char[], Int32, Int32)
Declaration
public static int CodePointAt(char[] a, int index, int limit)
Parameters
| Type |
Name |
Description |
| System.Char[] |
a |
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| System.Int32 |
index |
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| System.Int32 |
limit |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointAt(String, Int32)
Declaration
public static int CodePointAt(string seq, int index)
Parameters
| Type |
Name |
Description |
| System.String |
seq |
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| System.Int32 |
index |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointBefore(Char[], Int32)
Declaration
public static int CodePointBefore(char[] seq, int index)
Parameters
| Type |
Name |
Description |
| System.Char[] |
seq |
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| System.Int32 |
index |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointCount(Char[], Int32, Int32)
Declaration
public static int CodePointCount(char[] a, int offset, int count)
Parameters
| Type |
Name |
Description |
| System.Char[] |
a |
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| System.Int32 |
offset |
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| System.Int32 |
count |
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Returns
| Type |
Description |
| System.Int32 |
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CodePointCount(String, Int32, Int32)
Returns the number of Unicode code points in the text range of the specified char sequence.
The text range begins at the specified beginIndex and extends to the char at index endIndex - 1.
Thus the length (in s) of the text range is endIndex-beginIndex.
Unpaired surrogates within the text range count as one code point each.
Declaration
public static int CodePointCount(string seq, int beginIndex, int endIndex)
Parameters
| Type |
Name |
Description |
| System.String |
seq |
the char sequence
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| System.Int32 |
beginIndex |
the index to the first char of the text range.
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| System.Int32 |
endIndex |
the index after the last char of the text range.
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Returns
| Type |
Description |
| System.Int32 |
the number of Unicode code points in the specified text range
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GetType(Int32)
LUCENENET safe way to get unicode category. The .NET
method should be used first to be safe for surrogate pairs. However, if the value falls between
0x00d800 and 0x00dfff, that method throws an exception. So this is a wrapper that converts the
codepoint to a char in those cases.
This mimics the behavior of the Java Character.GetType class, but returns the .NET UnicodeCategory
enumeration for easy consumption.
Declaration
public static UnicodeCategory GetType(int codePoint)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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Returns
| Type |
Description |
| UnicodeCategory |
A representing the codePoint.
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IsLetter(Int32)
Declaration
public static bool IsLetter(int c)
Parameters
| Type |
Name |
Description |
| System.Int32 |
c |
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Returns
| Type |
Description |
| System.Boolean |
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OffsetByCodePoints(Char[], Int32, Int32, Int32, Int32)
Declaration
public static int OffsetByCodePoints(char[] a, int start, int count, int index, int codePointOffset)
Parameters
| Type |
Name |
Description |
| System.Char[] |
a |
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| System.Int32 |
start |
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| System.Int32 |
count |
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| System.Int32 |
index |
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| System.Int32 |
codePointOffset |
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Returns
| Type |
Description |
| System.Int32 |
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OffsetByCodePoints(String, Int32, Int32)
Declaration
public static int OffsetByCodePoints(string seq, int index, int codePointOffset)
Parameters
| Type |
Name |
Description |
| System.String |
seq |
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| System.Int32 |
index |
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| System.Int32 |
codePointOffset |
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Returns
| Type |
Description |
| System.Int32 |
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ToChars(Int32)
Declaration
public static char[] ToChars(int codePoint)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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Returns
| Type |
Description |
| System.Char[] |
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ToChars(Int32, Char[], Int32)
Declaration
public static int ToChars(int codePoint, char[] dst, int dstIndex)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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| System.Char[] |
dst |
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| System.Int32 |
dstIndex |
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Returns
| Type |
Description |
| System.Int32 |
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ToCodePoint(Char, Char)
Declaration
public static int ToCodePoint(char high, char low)
Parameters
| Type |
Name |
Description |
| System.Char |
high |
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| System.Char |
low |
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Returns
| Type |
Description |
| System.Int32 |
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ToLower(Int32)
Declaration
public static int ToLower(int codePoint)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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Returns
| Type |
Description |
| System.Int32 |
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ToUpper(Int32)
Declaration
public static int ToUpper(int codePoint)
Parameters
| Type |
Name |
Description |
| System.Int32 |
codePoint |
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Returns
| Type |
Description |
| System.Int32 |
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