From 856d457cefd91db6658e6cb6a2f8bee86082c700 Mon Sep 17 00:00:00 2001
From: Cameron Taylor <cameron.taylor.ninja@gmail.com>
Date: Wed, 8 Oct 2025 19:03:30 -0400
Subject: [PATCH 1/2] add `fileExtensions` to config

---
 src/formatter/Cli.hx                    | 7 +++++--
 src/formatter/config/Config.hx          | 8 ++++++++
 src/formatter/config/FormatterConfig.hx | 6 ++++++
 src/formatter/import.hx                 | 1 +
 4 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/formatter/Cli.hx b/src/formatter/Cli.hx
index 17c4c6df..5d8d850c 100644
--- a/src/formatter/Cli.hx
+++ b/src/formatter/Cli.hx
@@ -202,8 +202,11 @@ class Cli {
 	}
 
 	function formatFile(path:String) {
-		if (path.endsWith(extension)) {
-			var config = Formatter.loadConfig(path);
+		var config = Formatter.loadConfig(path);
+		var fileExtensions = config.fileExtensions;
+		fileExtensions.push(extension);
+
+		if (fileExtensions.exists(fileExtension -> path.endsWith(fileExtension))) {
 			if (verbose) {
 				verboseLogFile(path, config);
 			}
diff --git a/src/formatter/config/Config.hx b/src/formatter/config/Config.hx
index a19ba76b..7b0081a9 100644
--- a/src/formatter/config/Config.hx
+++ b/src/formatter/config/Config.hx
@@ -14,10 +14,12 @@ class Config {
 	public var whitespace:WhitespaceConfig;
 	public var wrapping:WrapConfig;
 	public var disableFormatting:Bool;
+	public var fileExtensions:Array<String>;
 	public var excludes:Array<EReg>;
 	public var configFileName:String;
 
 	public function new() {
+		fileExtensions = [];
 		excludes = [];
 		readConfigFromString("{}", "hxformat.json");
 	}
@@ -41,8 +43,14 @@ class Config {
 		whitespace = data.whitespace;
 		wrapping = data.wrapping;
 		disableFormatting = data.disableFormatting;
+		fileExtensions = [];
 		excludes = [];
 		configFileName = fileName;
+
+		for (fileExtension in data.fileExtensions) {
+			fileExtensions.push(fileExtension);
+		}
+
 		for (exclude in data.excludes) {
 			excludes.push(new EReg(exclude, ""));
 		}
diff --git a/src/formatter/config/FormatterConfig.hx b/src/formatter/config/FormatterConfig.hx
index a50802ec..5dc8add3 100644
--- a/src/formatter/config/FormatterConfig.hx
+++ b/src/formatter/config/FormatterConfig.hx
@@ -14,6 +14,12 @@ typedef FormatterConfig = {
 	@:default(auto) @:optional var whitespace:WhitespaceConfig;
 	@:default(auto) @:optional var wrapping:WrapConfig;
 
+	/**
+	 * Additional file extensions to format.
+	 * Example: hxp files from OpenFL
+	 */
+	@:default(["hx"]) @:optional var fileExtensions:Array<String>;
+
 	/**
 		regular expressions matching files to exclude from formatting
 		default is to exclude any `.haxelib`, `.git` and `node_modules` folder
diff --git a/src/formatter/import.hx b/src/formatter/import.hx
index ef92f20e..70e83ccf 100644
--- a/src/formatter/import.hx
+++ b/src/formatter/import.hx
@@ -11,6 +11,7 @@ import tokentree.utils.TokenTreeCheckUtils;
 import formatter.codedata.ParsedCode;
 import formatter.codedata.TokenInfo;
 
+using Lambda;
 using StringTools;
 using tokentree.TokenTreeAccessHelper;
 using formatter.config.WhitespacePolicy;

From 67a38532242b36ab1463a59e70a34a4179f55ebe Mon Sep 17 00:00:00 2001
From: Cameron Taylor <cameron.taylor.ninja@gmail.com>
Date: Wed, 8 Oct 2025 19:03:30 -0400
Subject: [PATCH 2/2] generate schema and default json file

---
 resources/default-hxformat.json | 3 +++
 resources/hxformat-schema.json  | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/resources/default-hxformat.json b/resources/default-hxformat.json
index ce9c13bd..afdcb493 100644
--- a/resources/default-hxformat.json
+++ b/resources/default-hxformat.json
@@ -116,6 +116,9 @@
 		"\\.git",
 		"node_modules"
 	],
+	"fileExtensions": [
+		"hx"
+	],
 	"indentation": {
 		"character": "tab",
 		"conditionalPolicy": "aligned",
diff --git a/resources/hxformat-schema.json b/resources/hxformat-schema.json
index e353a7be..4cff3ed9 100644
--- a/resources/hxformat-schema.json
+++ b/resources/hxformat-schema.json
@@ -256,6 +256,13 @@
 					},
 					"type": "array"
 				},
+				"fileExtensions": {
+					"description": "Additional file extensions to format. * Example: hxp files from OpenFL",
+					"items": {
+						"type": "string"
+					},
+					"type": "array"
+				},
 				"sameLine": {
 					"$ref": "#/definitions/formatter.config.SameLineConfig"
 				},