Since LibreOffice regex engine is crippled and don't support lookaheads, the short answer is: no, you can't do that.
BUT do lines you want to delete happen to fall into some common pattern? In your sample (which may or may not be representative for entire text) they does. In fact you want to delete all lines that start with number followed by letter. You can use this regexp to match these lines: ^[0-9]+.* ^ (caret) is for "begging of line". So this will match every line that starts with at least one number. If you don't care about formatting, you may also export your file into TXT and use perl, which has superior regex capabilities. -- Best regards Mirosław Zalewski -- For unsubscribe instructions e-mail to: users+h...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted