# Package antlr

- Class Summary
  Class | Description
  --- | ---
  ExtendedCommonASTWithHiddenTokens | A CommonAST whose initialization copies hidden token information from the Token used to create a node.
  TokenStreamCopyingHiddenTokenFilter | This class provides TokenStreamHiddenTokenFilters with the concept of tokens which can be copied so that they are seen by both the hidden token stream as well as the parser itself.