net.oneandone.mork.regexpr

Class Range

java.lang.Object

net.oneandone.mork.regexpr.RegExpr

net.oneandone.mork.regexpr.Range

All Implemented Interfaces:

Serializable

public class Range
extends RegExpr

Character ranges. Immutable objects, they can be shared.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Range	ALL

Constructor Summary

Constructors

Constructor and Description
Range(char firstAndLast)
Range(char first, char last)

Method Summary

Modifier and Type	Method and Description
Range	and(Range operand)
boolean	contains(char c)
boolean	contains(Range operand)
boolean	equals(Object obj)
char	getFirst()
char	getLast()
int	hashCode()
static void	normalizeRanges(List<Range> ranges)
static void	remove(List here, Range operand)
void	remove(Range operand, List<Range> result) only valid if this.and(operand) is not empty!
String	toString()
boolean	touches(Range operand)
Object	visit(Action action) Visit this expressions and its sub-expression and perform some action.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ALL

public static final Range ALL

Constructor Detail

Range

public Range(char firstAndLast)

Range

public Range(char first,
             char last)

Method Detail

getFirst

public char getFirst()

getLast

public char getLast()

contains

public boolean contains(char c)

contains

public boolean contains(Range operand)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

visit

public Object visit(Action action)
             throws ActionException

Description copied from class: RegExpr

Visit this expressions and its sub-expression and perform some action.

Specified by:

visit in class RegExpr

Throws:

ActionException

and

public Range and(Range operand)

Returns:

intersection between both ranges

touches

public boolean touches(Range operand)

Returns:

true if intersection would return != null. But faster!!

normalizeRanges

public static void normalizeRanges(List<Range> ranges)

Parameters:

ranges - in-out argument TODO: o expensive, the list is modified ... * states that touch each other are not merged

remove

public static void remove(List here,
                          Range operand)

remove

public void remove(Range operand,
                   List<Range> result)

only valid if this.and(operand) is not empty!

toString

public String toString()

Overrides:

toString in class Object