Allow shorter domain suffix for just one character

- FIX: Allow shorter domain suffix for just one character
- FEATURE: Add unit test for checking short domain suffix

refs #1167

GTG/core/urlregex.py

@@ -28,7 +28,7 @@
 UTF_CHARS = r'a-z0-9_\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff'
 
 SUBST_DICT = {
-    "domain": r'([\.-]|[^\s_\!\.\/])+\.[a-z]{2,}(?::[0-9]+)?',
+    "domain": r'([\.-]|[^\s_\!\.\/])+\.[a-z]{1,}(?::[0-9]+)?',
     "path": r'(?:[\.,]?[%s!\*\'\(\);:&=\+\$/%s#\[\]\-_,~@])' % (
         UTF_CHARS, '%'),
     "query": r'[a-z0-9!\*\'\(\);:&=\+\$/%#\[\]\-_\.,~]',

tests/core/test_urlregex.py

@@ -25,3 +25,7 @@ def test_search_does_not_include_preceeding_whitespace(self):
         match = urlregex.search("This snippet contains an url with whitespace"
             "before it:  https://wiki.gnome.org/Apps/GTG/")
         self.assertEqual(list(match)[0].group(), "https://wiki.gnome.org/Apps/GTG/")
+
+    def test_domain_with_short_suffix(selfs):
+        match = urlregex.search("https://ticketsystem.company.x/issues/12345")
+        selfs.assertEqual(list(match)[0].group(), "https://ticketsystem.company.x/issues/12345")