Appendix D: Masking Action Set
The following text parts are always masked, that means they will never be processed.
ISBN/ISSN numbers
Please note that the numbers in { } brackets give the number of subsequent elements.
- 978-<NUMBER>-<NUMBER>-<NUMBER>-<NUMBER>{1}<NO_NUMBER>: avoid ISBN replacement
- 979-<NUMBER>-<NUMBER>-<NUMBER>-<NUMBER>{1}<NO_NUMBER>: avoid ISBN replacement
- <NUMBER>-<NUMBER>-<NUMBER>-<NUMBER>{1}<NO_NUMBER>: avoid ISBN replacement
- ISSN <NUMBER>{4}-<NUMBER>{4}: avoid ISSN replacement
URLs
URLs are always masked.