MediaWiki:Smw allows pattern

This page is expected to contain a list of references (followed by regular expressions) to be made available by the Allows pattern property. To edit this page, the smw-patternedit right is required.

ISBN|^(?=(?:\D*\d){10}(?:(?:\D*\d){3})?$)[\d-]+$
price|^(Free|[$€]\d+(.\d+)?)$
page number|^(\d+|Inside Back Cover|Inside Front Cover|Inside Covers)$