* Peter Bailey <pbailey / bna.com> (21:18) schrieb: >> line.gsub!(/<registrantName>(.*)<\/registrantName>/,'<SUB.HEAD4>\1</SUB.HEAD4>') > Thank you, Jano. Yes, this worked for me now. Please note that regular expressions aren't a very good way to parse XML. The above expression subgroup will match everything between the first "<registrantName>" and the last "</registrantName>" which is probably not what you want. You can can use non-greedy *? as a workaround in this case. mfg, simon .... l