tree-sitter-hcl

tree-sitter grammar for the HCL language

Example

Highlighting example/example.hcl:

Developing

It is recommended to use nix to fulfill all development dependencies. To activate the development environment simply run nix-shell in the project root.

Running Tests

To run tests simply run nix-shell --run 'tree-sitter test'.

Compliance

The directory example/real_world_stuff contains a corpus of hcl files that I found with the github query language:HCL for users coreos, hashicorp, oracle and terraform-community-modules.

tree-sitter parse --quiet --stat example/real_world_stuff/*/*

Total parses: 1892; successful parses: 1892; failed parses: 0; success percentage: 100.00%

Fuzzing

The directory fuzz/crashers contains a set of crashes that were found with fuzzing. To fuzz the parser i used the instrumentation of tree-sitter

Todo

• use Unicode® Standard Annex #31 (augmented with '-') for identifiers
• add template expressions
  • add templates
    • add template interpolations
    • add template directives
    • add quoted templates
    • add heredoc templates
• fuzzing
  • start with fuzzing the parser
  • upload fuzzing instrumentation
  • document fuzzing process
  • add parsing of crashers to CI process