Loosen filename test

package.json

@@ -25,7 +25,7 @@
     {
       "path": "pkg/dist-node/index.js",
       "webpack": false,
-      "limit": "4244 B"
+      "limit": "4293 B"
     }
   ],
   "@pika/pack": {

src/internal/source-checkers.ts

@@ -81,14 +81,17 @@ export const isIterable = (
 
 /**
  * Check, if given argument is simple string, and presumably is is just file name
- * I hope no one will wants to use filename longer than 50 symbols :)
  */
-const fileNameRE = /^[\p{L}\w\s\(\).,-]+\.[A-Za-z0-9]+$/u // tslint:disable-line no-empty-character-class
-const MIN_FILE_NAME_LENGTH = 3
-const MAX_FILE_NAME_LENGTH = 50
+const filenameRE = /.+\..+/
+const filenameReservedRE = /[<>:"/\\|?*\u0000-\u001F]/g
+const windowsReservedNameRE = /^(con|prn|aux|nul|com\d|lpt\d)$/i
+const MAX_FILE_NAME_LENGTH = 255
 export const isFileName = (x: Source | undefined | null) =>
   isString(x) &&
-  !x.startsWith('file:') && // in ideal world there should be `!isFileUri(x)`, but TypeScript sucks here
-  x.length >= MIN_FILE_NAME_LENGTH &&
   x.length <= MAX_FILE_NAME_LENGTH &&
-  fileNameRE.test(x)
+  x !== '.' &&
+  x !== '..' &&
+  !x.startsWith('file:') && // in ideal world there should be `!isFileUri(x)`, but TypeScript sucks here
+  !filenameReservedRE.test(x) &&
+  !windowsReservedNameRE.test(x) &&
+  filenameRE.test(x)

test/internal/source-checkers.spec.ts

@@ -53,7 +53,8 @@ test('Test `isFileName` function', function () {
   expect(isFileName('Screenshot 2021-12-24 at 09.16.20.png')).toBe(true) // <-
   expect(isFileName('.test.png')).toBe(true) // <-
   expect(isFileName('.png')).toBe(false)
-  expect(isFileName('🙀.png')).toBe(false)
+  expect(isFileName('🙀.png')).toBe(true) // <-
+  expect(isFileName('ces La esencia del cristianismo Dios es persona (jóvenes).docx')).toBe(true) // <-
   expect(isFileName(url)).toBe(false)
   expect(isFileName(array)).toBe(false)
   expect(isFileName(map)).toBe(false)