Avoid CV IDs in EF

Author: Casvt

backend/base/file_extraction.py

@@ -23,7 +23,7 @@
 
 volume_regex_snippet = r'\b(?:v(?:ol|olume)?)(?:\.\s|[\.\-\s])?(\d+(?:\s?\-\s?\d+)?|(?<!v)I{1,3})'
 year_regex_snippet = r'(?:(\d{4})(?:-\d{2}){0,2}|(\d{4})[\s\.]?[\-\s](?:[\s\.]?\d{4})?|(?:\d{2}-){1,2}(\d{4})|(\d{4})[\s\.\-_]Edition|(\d{4})\-\d{4}\s{3}\d{4})'
-issue_regex_snippet = r'(?!\d+(?:th|rd|st|\s?(?:gb|mb|kb)))(?<!\')(?:\d+(?:\.\d{1,2}|\.?[a-z0-9]+|[\s\-\._]?[½¼])?|[½¼])'
+issue_regex_snippet = r'(?!\d+(?:th|rd|st|\s?(?:gb|mb|kb)))(?<!\')(?<!cv[\s\-_])(?:\d+(?:\.\d{1,2}|\.?[a-z0-9]+|[\s\-\._]?[½¼])?|[½¼])'
 
 # Cleaning the filename
 strip_filename_regex = compile(r'\(.*?\)|\[.*?\]|\{.*?\}', IGNORECASE)