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Java Source Code / Java Documentation » Development » Javolution » javolution.text 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   javolution.text.CharSet

CharSet
final public class CharSet implements Immutable(Code)

This class represents a set of characters.

Instances of this class are typically used for parsing purpose (faster than regular expressions for simple patterns). For example:[code] // Integration with Text. Text number; int exponentIndex = num.indexOfAny(CharSet.valueOf('e', 'E')); // Integration with TextFormat. public List parse(CharSequence csq, TextFormat.Cursor cursor) { FastTable numbers = FastTable.newInstance(); while (cursor.skip(CharSet.WHITESPACES, csq)) { numbers.add(TypeFormat.parseInt(csq, cursor)); } return numbers; } [/code]
author:
   Jean-Marie Dautelle
version:
   3.7, January 1, 2006



Field Summary
final public static  CharSetEMPTY
     Represents an empty character set.
final public static  CharSetISO_CONTROLS
     Represents ISO control characters according to Java (see Character.isISOControl(char) ).
final public static  CharSetSPACES
     Represents spaces characters according to Java (see Character.isSpaceChar(char) ).
final public static  CharSetWHITESPACES
     Represents white spaces characters according to Java (see Character.isWhitespace(char) ).


Method Summary
public  booleancontains(char c)
     Indicates if the specified character is contained by this character set.
Parameters:
  c - the character to test.
public  CharSetminus(CharSet that)
     Returns the character set containing the characters from this character minus the characters from the character set specified.
Parameters:
  that - the set containing the character to be removed.
public  CharSetplus(CharSet that)
     Returns the character set containing the characters from this character set plus the characters from the character set specified.
Parameters:
  that - the set containing the characters to be added.
public static  CharSetrangeOf(char first, char last)
     Returns the character set holding the characters in the specified range.
Parameters:
  first - the first character.
Parameters:
  last - the last character.
public  StringtoString()
     Returns the textual representation of this character set.
public static  CharSetvalueOf(char[] chars)
     Returns the character set holding the specified characters.
Parameters:
  chars - the characters contained by this character set.

Field Detail
EMPTY
final public static CharSet EMPTY(Code)
Represents an empty character set.



ISO_CONTROLS
final public static CharSet ISO_CONTROLS(Code)
Represents ISO control characters according to Java (see Character.isISOControl(char) ).



SPACES
final public static CharSet SPACES(Code)
Represents spaces characters according to Java (see Character.isSpaceChar(char) ).



WHITESPACES
final public static CharSet WHITESPACES(Code)
Represents white spaces characters according to Java (see Character.isWhitespace(char) ).





Method Detail
contains
public boolean contains(char c)(Code)
Indicates if the specified character is contained by this character set.
Parameters:
  c - the character to test. true if this character set contains the specifiedcharacter; false otherwise.



minus
public CharSet minus(CharSet that)(Code)
Returns the character set containing the characters from this character minus the characters from the character set specified.
Parameters:
  that - the set containing the character to be removed. this - that



plus
public CharSet plus(CharSet that)(Code)
Returns the character set containing the characters from this character set plus the characters from the character set specified.
Parameters:
  that - the set containing the characters to be added. this + that



rangeOf
public static CharSet rangeOf(char first, char last)(Code)
Returns the character set holding the characters in the specified range.
Parameters:
  first - the first character.
Parameters:
  last - the last character. the corresponding character set.
throws:
  IllegalArgumentException - if first > last



toString
public String toString()(Code)
Returns the textual representation of this character set. the textual representation.



valueOf
public static CharSet valueOf(char[] chars)(Code)
Returns the character set holding the specified characters.
Parameters:
  chars - the characters contained by this character set. the corresponding character set.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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