Fix preprocessing not being applied on Windows (#234)

* Fix preprocessing not happening for files on Windows

* Add Sarah as contributor

* Use path.isAbsolute instead of custom function

Author: SarahIsWeird

package.json

@@ -24,7 +24,8 @@
 	"contributors": [
 		"Daniel Swann (https://github.com/danswann)",
 		"Longboyy",
-		"Helloman892"
+		"Helloman892",
+		"Sarah Klocke (https://sarahisweird.dev/)"
 	],
 	"main": "index.js",
 	"repository": {

src/processScript/index.ts

@@ -26,7 +26,7 @@ import rollupPluginJSON from "@rollup/plugin-json"
 import rollupPluginNodeResolve from "@rollup/plugin-node-resolve"
 import type { LaxPartial } from "@samual/lib"
 import { assert } from "@samual/lib/assert"
-import { relative as getRelativePath } from "path"
+import { relative as getRelativePath, sep as pathSeparator, isAbsolute as isAbsolutePath } from "path"
 import prettier from "prettier"
 import { rollup } from "rollup"
 import { supportedExtensions as extensions } from "../constants"
@@ -260,7 +260,7 @@ export async function processScript(code: string, {
 			{
 				name: `hackmud-script-manager`,
 				async transform(code, id) {
-					if (id.startsWith(`/`) && !id.includes(`/node_modules/`))
+					if (isAbsolutePath(id) && !id.includes(`${pathSeparator}node_modules${pathSeparator}`))
 						return (await preprocess(code, { uniqueId })).code
 
 					let program!: NodePath<Program>