CharacterSet (Ontopia)

java.lang.Object
- net.ontopia.utils.CharacterSet

```
public class CharacterSet
extends Object
```
INTERNAL: Represents a set of Unicode characters, and provides a method to quickly determine whether or not a particular character is in the set. Useful for large, complex sets like "the set of XML name start characters". Characters outside the BMP (ie: above U+FFFF) are not supported.

Constructor Summary

Constructors
Constructor Description

CharacterSet()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addInterval(char low, char high)`	Adds the interval of characters to the set.
`void`	`close()`	Called after the last interval has been added.
`boolean`	`contains(char ch)`	Used to determine whether or not the character is a member of the set.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CharacterSet
```
public CharacterSet()
```
- Method Detail
  - addInterval
```
public void addInterval(char low,
                        char high)
```
    Adds the interval of characters to the set. To add a single character make low and high the same value. Cannot be called after close() has been called.
  - close
```
public void close()
```
    Called after the last interval has been added. Compiles the internal, efficient representation of the set. No more additions can be made after this method has been called.
  - contains
```
public boolean contains(char ch)
```
    Used to determine whether or not the character is a member of the set.