Value Members

1.  object TPTPParser

   Parser for the TPTP-based input language, including ...

   Parser for the TPTP-based input language, including ...

   • THF (TH0/TH1): Monomorphic and polymorphic higher-order logic,
   • TFF (TF0/TF1): Monomorphic and polymorphic typed first-order logic,
   • FOF: Untyped first-order logic,
   • CNF: (Untyped) clause-normal form, and
   • TPI: TPTP Process Instruction language.

   The parser parses into an abstract syntax tree defined at datastructures.TPTP, resp. its corresponding specializations for the respective language dialect:

   • THF formulas are parsed into datastructures.TPTP.THF
   • TFF formulas are parsed into datastructures.TPTP.TFF
   • FOF/TPI formulas are parsed into datastructures.TPTP.FOF
   • CNF formulas are parsed into datastructures.TPTP.CNF. ... each wrapper in the respective datastructures.TPTP.AnnotatedFormula.

   Parsing errors will cause TPTPParser.TPTPParseExceptions. Note that includes etc. are parsed as-is and reprented by a datastructures.TPTP.Include entry in the datastructures.TPTP.Problem representation. In particular, they are not parsed recursively. This has to be implemented externally.

   Since

   January 2021

   Note

   For the implementation of this parser v7.4.0.3 of the TPTP syntax was used.

   ,

   Limitations: Currently, FOOL logic (i.e., TFX) cannot be parsed.

   See also

   Original TPTP syntax definition at http://tptp.org/TPTP/SyntaxBNF.html.