github.com/hashicorp/hcl/v2@v2.20.0/ext/README.md (about)

     1  # HCL Extensions
     2  
     3  This directory contains some packages implementing some extensions to HCL
     4  that add features by building on the core API in the main `hcl` package.
     5  
     6  These serve as optional language extensions for use-cases that are limited only
     7  to specific callers. Generally these make the language more expressive at
     8  the expense of increased dynamic behavior that may be undesirable for
     9  applications that need to impose more rigid structure on configuration.