make comment regex a constant

scripts/lib/constants.py

@@ -1,4 +1,5 @@
 from os import path
+import re
 
 RULES_PATH = path.join('src', 'main', 'resources', 'org', 'languagetool', 'rules')
 LOCALES = {'de', 'es', 'en', 'fr', 'nl', 'pt'}
@@ -12,3 +13,6 @@
     "personal": ['clarity', 'general', 'informal', 'positive', 'povadd'],
     "expressive": ['clarity', 'general']
 }
+
+COMMENT_REGEX = re.compile(r'<!-- (?P<author>\w+)@(?P<date>\d{4}-\d{2}-\d{2}) - (?P<tag>[A-Z]+): '
+                           r'(?P<content>[\s\S\n]*?)')

scripts/lib/elements.py

@@ -1,6 +1,6 @@
-import re
 from lxml import etree
 from typing import List
+from constants import *
 
 
 class ToneTag:
@@ -62,9 +62,8 @@ def is_goal_specific(self):
     @property
     def comments(self):
         if self.xml_node.tag in ["rule", "rulegroup"]:
-            regex = re.compile(r'<!-- [A-Z]{2}@\d{4}-\d{2}-\d{2} - [A-Z]+: [\s\S\n]*?-->')
             comments = self.xml_node.xpath("./comment()[not(preceding-sibling::pattern)]")
-            return [Comment(c) for c in comments if re.fullmatch(regex, str(c))]
+            return [Comment(c) for c in comments if re.fullmatch(COMMENT_REGEX, str(c))]
 
     # This is stupid, but whatever, it works.
     @staticmethod
@@ -110,5 +109,4 @@ def __str__(self):
         return self.comment
 
     def parse_comment(self):
-        return re.search(r'<!-- (?P<author>\w+)@(?P<date>\d{4}-\d{2}-\d{2}) - (?P<tag>[A-Z]+):'
-                         r' (?P<content>[\s\S\n]*?)-->', self.comment.__str__())
+        return re.search(COMMENT_REGEX, self.comment.__str__())