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| java.lang.Object
 java.text.CharSet
| CharSet | | class CharSet implements Cloneable(Code) | | An object representing a set of characters. (This is a "set" in the
mathematical sense: an unduplicated list of characters on which set
operations such as union and intersection can be performed.) The
set information is stored in compressed, optimized form: The object
contains a String with an even number of characters. Each pair of
characters represents a range of characters contained in the set
(a pair of the same character represents a single character). The
characters are sorted in increasing order.
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| Constructor Summary | |
| public | CharSet()
Creates an empty CharSet. | | public | CharSet(char c)
Creates a CharSet containing a single character. | | public | CharSet(char lo, char hi)
Creates a CharSet containing a range of characters. |
| CharSet | | public CharSet()(Code) | | Creates an empty CharSet.
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| CharSet | | public CharSet(char c)(Code) | | Creates a CharSet containing a single character.
Parameters:
c - The character to put into the CharSet |
| CharSet | | public CharSet(char lo, char hi)(Code) | | Creates a CharSet containing a range of characters.
Parameters:
lo - The lowest-numbered character to include in the range
Parameters:
hi - The highest-numbered character to include in the range |
| clone | | public Object clone()(Code) | | Creates a new CharSet that is equal to this one
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| complement | | public CharSet complement()(Code) | | Returns a CharSet containing all the characters which are not
in "this"
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| contains | | public boolean contains(char c)(Code) | | Returns true if this CharSet contains the specified character
Parameters:
c - The character we're testing for set membership |
| difference | | public CharSet difference(CharSet that)(Code) | | Returns a CharSet containing all the characters in "this" that
aren't also in "that"
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| empty | | public boolean empty()(Code) | | Returns true if this CharSet contains no characters
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| equals | | public boolean equals(Object that)(Code) | | Returns true if "that" is another instance of CharSet containing
the exact same characters as this one
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| getChars | | public Enumeration getChars()(Code) | | Returns an Enumeration that will return the ranges of characters
contained in this CharSet one at a time
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| getRanges | | public String getRanges()(Code) | | Returns a String representing the contents of this CharSet
in the same form in which they're stored internally: as pairs
of characters representing the start and end points of ranges
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| intersection | | public CharSet intersection(CharSet that)(Code) | | Returns the intersection of two CharSets.
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| releaseExpressionCache | | public static Hashtable releaseExpressionCache()(Code) | | Returns a copy of CharSet's expression cache and sets CharSet's
expression cache to empty.
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| toString | | public String toString()(Code) | | Returns a textual representation of this CharSet. If the result
of calling this function is passed to CharSet.parseString(), it
will produce another CharSet that is equal to this one.
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| union | | public CharSet union(CharSet that)(Code) | | Returns a CharSet representing the union of two CharSets.
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