Index: compile_rules.py
==================================================================
--- compile_rules.py
+++ compile_rules.py
@@ -133,11 +133,11 @@
     nPriority = 4           # Default is 4, value must be between 0 and 9
     tGroups = None          # code for groups positioning (only useful for JavaScript)
     cCaseMode = 'i'         # i: case insensitive,  s: case sensitive,  u: uppercasing allowed
     cWordLimitLeft = '['    # [: word limit, <: no specific limit
     cWordLimitRight = ']'   # ]: word limit, >: no specific limit
-    m = re.match("^__(?P<borders_and_case>[[<]\\w[]>])(?P<option>/[a-zA-Z0-9]+|)(?P<ruleid>\\(\\w+\\)|)(?P<priority>![0-9]|)__ *", s)
+    m = re.match("^__(?P<borders_and_case>[\\[<]\\w[\\]>])(?P<option>/[a-zA-Z0-9]+|)(?P<ruleid>\\(\\w+\\)|)(?P<priority>![0-9]|)__ *", s)
     if m:
         cWordLimitLeft = m.group('borders_and_case')[0]
         cCaseMode = m.group('borders_and_case')[1]
         cWordLimitRight = m.group('borders_and_case')[2]
         sOption = m.group('option')[1:]  if m.group('option')  else False
@@ -223,11 +223,11 @@
         print("# Regex error at line ", nIdLine)
         print(sRegex)
         traceback.print_exc()
         return None
     ## groups in non grouping parenthesis
-    for x in re.finditer(r"\(\?:[^)]*\([[\w -]", sRegex):
+    for x in re.finditer(r"\(\?:[^)]*\([\[\w -]", sRegex):
         print("# Warning: groups inside non grouping parenthesis in regex at line " + sLineId)
 
     #### PARSE ACTIONS
     lActions = []
     nAction = 1