I need to exclude files with the following pattern:
ProjectFoo.Data[0-9]{14}.lgp
How can I use RegEx for (Visual)SVN ignore list?
As the file looks like an LLBLGen Pro project backup file, you can force llblgen pro to store backup files into a separate folder (See preferences: default backup folder), e.g. .\Backup. This way you can exclude that folder in svn and you're done :)