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Removal of zero-width matches in generated tree-sitter grammar files, preliminary implementation

tree-sitterConcerning the tree-sitter backendConcerning the tree-sitter backend

Status: Open (in progress).

BNFC/bnfcnumber 475

#475 In BNFC/bnfc;

· chaserhkj opened on Feb 3, 2024

List category of internal category should be internal

bug

internal rulesConcerning the "internal" keyword.Concerning the "internal" keyword.

parserIssues concerning parser generatingIssues concerning parser generating

Status: Open.

#465 In BNFC/bnfc;

· andreasabel opened on Oct 26, 2023

Drop support for GHC 8.0 and 8.2

ghc-8.4

Status: Open.

#548 In BNFC/bnfc;

· andreasabel opened on Mar 12, 2026

Behavior on conflicting flags

enhancement

Status: Open.

#553 In BNFC/bnfc;

· Commelina opened on Mar 13, 2026

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

tree-sitterConcerning the tree-sitter backendConcerning the tree-sitter backend

Status: Open.

#556 In BNFC/bnfc;

· Commelina opened on Mar 25, 2026

Haskell: define without argument produces incorrect AST

defineIssue with define pragmaIssue with define pragma

Haskell

Haskell/GADT

Status: Open.

#560 In BNFC/bnfc;

· Commelina opened on May 1, 2026

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

AgdaIssues of the Agda backendIssues of the Agda backend

documentation

Status: Open.

#562 In BNFC/bnfc;

· Commelina opened on May 1, 2026