Issues

• Feature Requst: Lean backend

  BNFC/bnfc#572 · Filter by author GZGavinZhao opened on Jun 18, 2026
  1

• Providing multiple separators for a class is not handled correctly

  BNFC/bnfc#571 · Filter by author MatthewDaggitt opened on Jun 11, 2026

• Java backend fails to escape \n inside terminator/separator

  BNFC/bnfc#566 · Filter by author katrinafyi opened on May 16, 2026

• Agda: labels with same letters but different cases (first char) may break the compilation

  Agdadocumentation
  BNFC/bnfc#562 · Filter by author Commelina opened on May 1, 2026 · 2.9.7

• Bug in C++ header file generation

  BNFC/bnfc#559 · Filter by author MatthewDaggitt opened on Apr 14, 2026

• Tree-sitter: ambiguous grammar, Makefile, unicode, and comments

  tree-sitter
  BNFC/bnfc#556 · Filter by author Commelina opened on Mar 25, 2026 · 2.9.7
  2

• Behavior on conflicting flags

  enhancement
  BNFC/bnfc#553 · Filter by author Commelina opened on Mar 13, 2026 · 2.9.7
  2

• Drop support for GHC 8.0 and 8.2

  ghc-8.4
  BNFC/bnfc#548 · Filter by author andreasabel opened on Mar 12, 2026 · 2.9.7

• Haskell GADT backend: possible declaration conflicts with labels end with _

  Haskell/GADT
  BNFC/bnfc#542 · Filter by author Commelina opened on Mar 5, 2026

• Improve documentation of the Agda backend on the command line

  BNFC/bnfc#520 · Filter by author MatthewDaggitt opened on Oct 17, 2025
  2

• Correctly configuring Cabal package to compile grammar

  BNFC/bnfc#499 · Filter by author ivanperez-keera opened on Mar 25, 2025
  2

• Add EBNF additions to LBNF

  BNFC/bnfc#495 · Filter by author ethindp opened on Feb 11, 2025

• Allow for implicit rule labels

  BNFC/bnfc#492 · Filter by author ivanperez-keera opened on Jan 26, 2025

• Overlapping definitions for tokens

  faq
  BNFC/bnfc#491 · Filter by author ivanperez-keera opened on Jan 3, 2025
  1

• Modern AST for Java

  ASTJava
  BNFC/bnfc#490 · Filter by author andreasabel opened on Nov 22, 2024

• Grammar railroad diagram

  BNFC/bnfc#489 · Filter by author mingodad opened on Nov 8, 2024

• List category of internal category should be internal

  buginternal rulesparser
  BNFC/bnfc#465 · Filter by author andreasabel opened on Oct 26, 2023 · 2.9.7
  1

  

• Document that $LANG and $LOCALE_ARCHIVE need to be set

  BNFC/bnfc#460 · Filter by author SKyletoft opened on Sep 14, 2023

• how-to cabal

  cabal
  BNFC/bnfc#450 · Filter by author ScottFreeCode opened on Jul 26, 2023
  3

• Optional Semicolons

  BNFC/bnfc#447 · Filter by author ScottFreeCode opened on Jun 3, 2023
  5

• Improve generated CPP code to trace function calls

  BNFC/bnfc#445 · Filter by author agharish17 opened on Apr 23, 2023
  5

• Juxtaposing quotation mark

  bugbuiltinHaskelllexerOCaml
  BNFC/bnfc#436 · Filter by author sergey-goncharov opened on Feb 8, 2023
  4

• bnfc 2.9.4 does not build with ventura m1

  buildhomebrew
  BNFC/bnfc#430 · Filter by author chenrui333 opened on Nov 27, 2022
  4

• Parse error should close layout block

  layout
  BNFC/bnfc#426 · Filter by author andreasabel opened on Oct 5, 2022 · 3.0

• Haskell: errors as record types

  error-reportingHaskellparser
  BNFC/bnfc#423 · Filter by author vkpgwt opened on Jul 15, 2022
  2