2.8.4 Andreas Abel <andreas.abel@gu.se> October 2020 * GHC versions 7.10 - 8.10 supported, dropped GHC 7.6 and 7.8 * LBNF: whitespace list separators are now accepted; treated like "" [#70] * `define` pragma now implemented by all maintained backends [#266, #285] * BNFC performs more sanity checks on the grammar, reports errors with source locations [#186, #213, #214] * option `--check` to only perform sanity checks [#286] * Backends now more resilient against keyword and name clashes (e.g. via qualified imports) [#278, #289] * Haskell: new option --text-token to use Data.Text instead of String in the lexer [#167] * Haskell: allow block comment delimiters of any length [#169, #202] * Haskell: define Err monad as Either String [#273], migration guide at https://bnfc.readthedocs.io/en/v2.8.4/user_guide.html#haskell-backend * Haskell: IsString instances for Ident-like token types [#192] * C/C++/Java: support multiple block comment forms per grammar [#202] * C++(STL): parser now throws exception on parse error [#288] * C++: fixed quadratic behavior in C++-generated printer (regression in 2.8.2) * Java: escape JFlex special characters [#299] * Java/ANTLR: emit start rules to work around ANTLR issue #2689 [#272] * Ocaml: new flag --menhir to generate parser with menhir instead of ocamlyacc * Bug fixes: #163, #169, #196, #212, #235, #256, #264, #269, #274, #276, #277, #279, #282, #283, #290 * Fact-checking and revising LBNF documentation at https://bnfc.readthedocs.io/en/v2.8.4/lbnf.html 2.8.3 Andreas Abel <andreas.abel@gu.se> August 2019 * GHC 8.8 compatibility * Stack installation supported by provided .yaml files [#198] * Unicode support in lexer, excl. C, C++ and Ocaml [#249] * LBNF: support \r (carriage return) and \f (form feed) in token declaration [#257] * LBNF: allow numbered categories (like Foo2) independent of coercions [#210] * Agda: new (experimental) backend, providing bindings to AST/parser/printer of Haskell backend * C: supports now the -l option to give error locations [#238] * C: correct function names in generated skeletons [#239] * C, C++: handle regular expression difference (subtraction) correctly [#237] * Haskell: generates now more fine-grained Makefile that invokes bnfc on changed .cf file * Haskell: use qualified import of AST in generated printer [#128,#228] * Haskell: printer code no longer produces deprecation warning concerning OverlappingInstances [#233] * Haskell/CNF: fixed problem with Any type in generated code [#216] * Haskell/CNF: generated test program now same name (Test) as w/o --cnf * Haskell/GLR: correct module header in .y file [#252] 2.8.2 Andreas Abel <andreas.abel@gu.se> November 2018 * GHC 8.4 compatibility [#227,#236] * bnfc now puts current timestamp on all created files, even unchanged ones [#219] * bnfc is now more accepting about border-line terminals [#149] * Improved error messages [#144] in particular on undefined categories [#151] * C: Emit correct function prototypes [#185] * C++: Fix buffer overrun in pretty printer [#242] * C++: Fix regression introduced in 2.8 in Skeleton.H [#164] * C++: Replace `%name-prefix` with `%define api.prefix` in bison files [#181] * C++: Fix a bug that appeared if you had a category named "List" * C, C++: Add usage output to the test program [#141] * C, C++: Fix a bug in the parser file when using -p [#172] * C, C++, OCaml, Java: Accept ' or " as comment delimiters [#146] * Haskell: Generated code mostly hlint-warning free * Haskell: Small fixes [#166,#170,#222] * Java: Add an experimental ANTLR4 backend [#155] * Java: Add support for passing line numbers to parser [#217,#224,#226] * OCaml: Reserved symbols now have a higher precedence than predefined tokens as in Haskell * Some updates of the documentation [#211,#223] * And various small fixes [#139,#159,#195,#201,#215] 2.8.1 Grégoire Détrez <gregoire.detrez@gu.se> February 2016 * Fix compatibility with GHC 7.10.2 and Alex 3.14 * Fixed #160 2.8 Grégoire Détrez <gregoire.detrez@gu.se> May 2015 * Builds with ghc 7.10.1 * Add support for JFlex (java) * Add an option to generate files in an other directory * Add an experimental option that turns the AST into a parametrized functor (in Haskell only) * New pygment backend to generate syntax highlighters * Bug fixes 2.7.1 Grégoire Détrez <gregoire.detrez@gu.se> October 2014 * Generated haskell code is now warning free * Removed unused terminal in happy * Correctly escape backslashes in symbols * Fix problem that was preventing custom tokens to work in OCaml if they conflict with the build-in Ident * BNFC build is also warning free (ghc 7.4.2) * Test programs return non-zerro exit code on parse error 2.7.0.0 Grégoire Détrez <gregoire.detrez@gu.se> September 2014 * Add token support for Ocaml * New option parser * Adds an optional argument to change Makefile name * Add a --ghc option to derive Data, Typeable, Generic in Haskell * New online documentation (https://bnfc.readthedocs.org) * Derive ``Read`` for newtype decls in Haskell * New option to get the version number --version * Remove the F# backend * Remove the Java4 backend * New Applicative and Alternative instances to ``Err`` * Remove the coupling between building the parser and the pdf from latex * Improvement to the CNF Backend * Bug fixes #92, #21, #34, #33, #90, #30, #60