RegexMatchHandler

```
public interface RegexMatchHandler
```
Interface defining a call-back action for processing captured groups within a regular expression

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`characters(UnicodeString s)`	Method to be called with each fragment of text in a matching substring
`void`	`onGroupEnd(int groupNumber)`	Method to be called when the end of a captured group is encountered
`void`	`onGroupStart(int groupNumber)`	Method to be called when the start of a captured group is encountered

- Method Detail
  - characters
```
void characters(UnicodeString s)
         throws XPathException
```
    Method to be called with each fragment of text in a matching substring
    
    Parameters:
    
    s - a matching substring, or part thereof that falls within a specific group
    
    Throws:
    
    XPathException
  - onGroupStart
```
void onGroupStart(int groupNumber)
           throws XPathException
```
    Method to be called when the start of a captured group is encountered
    
    Parameters:
    
    groupNumber - the group number of the captured group
    
    Throws:
    
    XPathException
  - onGroupEnd
```
void onGroupEnd(int groupNumber)
         throws XPathException
```
    Method to be called when the end of a captured group is encountered
    
    Parameters:
    
    groupNumber - the group number of the captured group
    
    Throws:
    
    XPathException