Ensure word alias is compatible with Ruby

This fixes an issue with odni-che-Cyrl-Latn-2015

Author: webdev778

src/interscript/stdlib.py

@@ -7,8 +7,8 @@
     "whitespace": "[\\b \\t\\0\\r\\n]",
     "boundary": "\\b",
     "non_word_boundary": "\\B",
-    "word": "\\w",
-    "not_word": "\\W",
+    "word": "[a-zA-Z0-9_]",
+    "not_word": "[^a-zA-Z0-9_]",
     "alpha": "[a-zA-Z]",
     "not_alpha": "[^a-zA-Z]",
     "digit": "\\d",