JFlex

Class Interval

public final class Interval extends Object

An intervall of characters with basic operations.

Field Summary
char	end
char	start

Constructor Summary
	Interval(char start, char end) Constuct a new intervall from `start` to `end`.
	Interval(Interval other) Copy constructor

Method Summary
boolean	contains(char point) Return `true` iff `point` is contained in this intervall.
boolean	contains(Interval other) Return `true` iff this intervall completely contains the other one.
Interval	copy() Make a copy of this interval.
boolean	equals(Object o) Return `true` if `o` is an intervall with the same borders.
void	setEnd(char end) Set a new last character
void	setStart(char start) Set a new first character
String	toString() Get a String representation of this intervall.

Field Detail

end

public char end

start

public char start

Constructor Detail

Interval

public Interval(char start, char end)

Constuct a new intervall from start to end.

Parameters: start first character the intervall should contain end last character the intervall should contain

Interval

public Interval(Interval other)

Copy constructor

Method Detail

contains

public boolean contains(char point)

Return true iff point is contained in this intervall.

Parameters: point the character to check

contains

public boolean contains(Interval other)

Return true iff this intervall completely contains the other one.

Parameters: other the other intervall

copy

public Interval copy()

Make a copy of this interval.

Returns: the copy

equals

public boolean equals(Object o)

Return true if o is an intervall with the same borders.

Parameters: o the object to check equality with

setEnd

public void setEnd(char end)

Set a new last character

Parameters: end the new last character of this intervall

setStart

public void setStart(char start)

Set a new first character

Parameters: start the new first character of this intervall

toString

public String toString()

Get a String representation of this intervall.

Returns: a string "[start-end]" or "[start]" (if there is only one character in the intervall) where start and end are either a number (the character code) or something of the from 'a'.