A Tree-sitter grammar for parsing HashiCorp Configuration Language (HCL) syntax.
tree-sitter-hcl is a Tree-sitter grammar for the HashiCorp Configuration Language (HCL), enabling syntax parsing and highlighting for HCL files. It allows editors and tools to understand HCL syntax structure, which is essential for infrastructure-as-code projects using Terraform, Packer, or other HashiCorp tools. The grammar is tested against real-world HCL files to ensure accuracy and reliability.
Developers and DevOps engineers working with HashiCorp tools like Terraform, Packer, or Nomad who need syntax highlighting, code analysis, or editor integration for HCL files.
It provides a robust, community-maintained grammar that accurately parses HCL syntax, enabling better tooling support compared to basic regex-based highlighters. The grammar is validated against real-world usage, ensuring it handles production HCL code correctly.
HCL grammar for tree-sitter
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Implements the official HCL specification and has been tested against 1892 real-world HCL files with a 100% success rate, ensuring reliability for production infrastructure code.
Validated against HCL files from major projects like HashiCorp and Terraform community modules, guaranteeing it handles actual usage patterns found in the wild.
Provides a Nix-based development environment that simplifies setup and testing, making it easy for contributors to run tests and ensure correctness.
Includes a dedicated fuzzing repository to stress-test the grammar against unusual inputs, enhancing its robustness and preventing parsing failures.
The development environment requires Nix, which can be a hurdle for developers unfamiliar with it or working in environments where Nix is not supported.
Only beneficial for tools and editors that integrate Tree-sitter; for systems using alternative parsing methods, this grammar adds no value.
The README focuses on development and testing, lacking clear instructions for non-developers on how to deploy the grammar in popular editors like VSCode or IntelliJ.