diff --git a/docs/1.0.md b/docs/1.0.md index 7fac1f8..5dab8a0 100644 --- a/docs/1.0.md +++ b/docs/1.0.md @@ -541,6 +541,10 @@ Using this pattern, podcasts can maintain a consistent identity across the open * All podcasts in the Podcast Index have already been assigned a GUID; but if one exists in the RSS feed, that value is canonical. * You can programmatically spot a GUID: it is 36 characters long, and contains four hyphen characters. * Be aware that Amazon Music also uses UUIDv5 identifiers, which are calculated differently. +* The following regular expression (regex) will match a GUID: +```re +[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}` +``` ### Parent   ``