Refactor TypeScript definition to CommonJS compatible export (#21)

index.d.ts

@@ -1,9 +1,26 @@
 /// <reference types="node"/>
 
-/**
- * Check if a string or buffer is [SVG](https://en.wikipedia.org/wiki/Scalable_Vector_Graphics).
- *
- * @param input - The data to check.
- * @returns Whether `input` is SVG or not.
- */
-export default function isSvg(input: string | Buffer): boolean;
+declare const isSvg: {
+	/**
+	Check if a string or buffer is [SVG](https://en.wikipedia.org/wiki/Scalable_Vector_Graphics).
+
+	@param input - The data to check.
+	@returns Whether `input` is SVG or not.
+
+	@example
+	```
+	import isSvg = require('is-svg');
+
+	isSvg('<svg xmlns="http://www.w3.org/2000/svg"><path fill="#00CD9F"/></svg>');
+	//=> true
+	```
+	*/
+	(input: string | Buffer): boolean;
+
+	// TODO: Remove this for the next major release, refactor the whole definition to:
+	// declare function isSvg(input: string | Buffer): boolean;
+	// export = isSvg;
+	default: typeof isSvg;
+};
+
+export = isSvg;

index.js

@@ -20,4 +20,5 @@ const regex = /^\s*(?:<\?xml[^>]*>\s*)?(?:<!doctype svg[^>]*\s*(?:\[?(?:\s*<![^>
 const isSvg = input => Boolean(input) && !isBinary(input) && regex.test(input.toString().replace(htmlCommentRegex, ''));
 
 module.exports = isSvg;
+// TODO: Remove this for the next major release
 module.exports.default = isSvg;

index.test-d.ts

@@ -1,5 +1,5 @@
-import {expectType} from 'tsd-check';
-import isSvg from '.';
+import {expectType} from 'tsd';
+import isSvg = require('.');
 
 const data = '<svg></svg>';
 

package.json

@@ -13,7 +13,7 @@
 		"node": ">=6"
 	},
 	"scripts": {
-		"test": "xo && ava && tsd-check"
+		"test": "xo && ava && tsd"
 	},
 	"files": [
 		"index.js",
@@ -36,12 +36,12 @@
 		"buffer"
 	],
 	"dependencies": {
-		"html-comment-regex": "^1.1.0"
+		"html-comment-regex": "^1.1.2"
 	},
 	"devDependencies": {
-		"@types/node": "^11.10.4",
-		"ava": "^1.2.1",
-		"tsd-check": "^0.3.0",
+		"@types/node": "^11.13.0",
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
 		"xo": "^0.24.0"
 	}
 }