dprint-plugin-fea

A dprint plugin for Adobe Feature Files (.fea), backed by the lossless fea-rs parser and create-font formatter.

Installation

pnpm add --save-dev dprint-plugin-fea

Reference the package artifact from dprint.json:

{
	"fea": {
		"associations": ["**/*.fea"],
		"lineWidth": 80,
		"indentWidth": 2,
		"useTabs": false,
		"newLineKind": "auto"
	},
	"plugins": ["./node_modules/dprint-plugin-fea/plugin.wasm"]
}

The plugin preserves every non-whitespace source token in order, including the exact text of leading, block, inline, and trailing comments. It retains one intentional blank line and produces canonical blocks, statements, classes, records, contextual rules, tables, and include directives. Syntax errors stop formatting before any output is returned.

Supported configuration:

• lineWidth (default 80);
• indentWidth (default 2);
• useTabs (default false);
• newLineKind: "auto", "lf", or "crlf".

Development

The repository does not check in plugin.wasm. Build it reproducibly with the mise-managed Rust toolchain:

mise install
pnpm --filter dprint-plugin-fea build
pnpm --filter dprint-plugin-fea test
pnpm --filter dprint-plugin-fea pack --dry-run

The build writes the ignored plugin.wasm and manifest.json package artifacts. manifest.json records the package version, byte size, and SHA-256 digest included in the npm tarball.