This package provides a Tree-Sitter powered major-mode for editing GSP files. GSP is a preprocessor for HTML to make web-development less painful. You can learn more about it here.

At the moment this package provides support for indentation and syntax highlighting. The level of syntax highlighting can be configured by setting treesit-font-lock-level, and the specific elements to highlight can be configured by customizing treesit-font-lock-feature-list.

Other user-customizable variables of note are gsp-ts-indent-offset, gsp-ts-font-lock-rules, and gsp-ts-ident-rules.