Am 12.10.2011 08:06, schrieb Joseph Wright: >> >>> Rather than \regex_extract_once:nnN, I would probably call it >>> \regex_extract_first:nnN. >> >> Not sure about that. We already have \tl_replace_(once|all):Nnn, which >> is what prompted me to use once there. @Joseph (and others), would >> \tl_replace_first:Nnn make more sense than _once? > > For the moment, go with 'once', and we can discuss separately whether it > should be once/all or first/all in general. (We've only just changed > this from having 'in' in the name, which has caused confusion enough!) on first glance "first" feels more precise than once. But I guess this is not really true since it requires knowledge that processing is left to right. But personally I like "first" better. Having said that I agree with Joseph that for now use "once" to keep common name structures. frank