TokenDef (com.gengoai:mango 1.1-SNAPSHOT API)

All Superinterfaces:

Serializable, Tag

All Known Implementing Classes:

CommonTypes
```
public interface TokenDef
extends Tag, Serializable
```
Defines a Tag and pattern representing a terminal token to be lexed. Variables (sub-tokens) can be defined using an anonymous capture group, i.e. (?<> ... ).

Author:

David B. Bracewell

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getPattern()`	Regular expression pattern for use in a `Lexer`
`static TokenDef`	`token(String tag, String pattern)`	Constructs a simple token definition using a `StringTag`

Methods inherited from interface com.gengoai.Tag
isInstance, isInstance, label, name, parent

- Method Detail
  - getPattern
```
String getPattern()
```
    Regular expression pattern for use in a Lexer
    
    Returns:
    
    the pattern
  - token
```
static TokenDef token(String tag,
                      String pattern)
```
    Constructs a simple token definition using a StringTag
    
    Parameters:
    
    tag - the tag
    
    pattern - the pattern
    
    Returns:
    
    the TokenDef