| Class | Description | 
|---|---|
| AbstractMultipleParser | 
 Abstract base class for parser wrappers which may / will
 process a given stream multiple times, merging the results
 of the various parsers used. 
 | 
| FallbackParser | 
 Tries multiple parsers in turn, until one succeeds. 
 | 
| SupplementingParser | 
 Runs the input stream through all available parsers,
 merging the metadata from them based on the
  
AbstractMultipleParser.MetadataPolicy chosen. | 
| Enum | Description | 
|---|---|
| AbstractMultipleParser.MetadataPolicy | 
 The various strategies for handling metadata emitted by
 multiple parsers. 
 | 
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