refactoring, improved string cleansing preprocessing

tests/pre_test_examples.py

@@ -0,0 +1,15 @@
+import re
+
+
+string = """
+Hallo mein Name ist Max Mustermann    und ich bin am 01.01.2024 geboren.
+"""
+
+patt = r'(\d{1,2}\.)?(\d{1,2}\.)([\d]{2,4})?'
+patt2 = r'[ ]{2,}'
+pattern = re.compile(patt)
+pattern2 = re.compile(patt2)
+res = pattern.sub('', string)
+res = pattern2.sub(' ', res)
+
+print(res)