> As this is ment for document level, I am tempted to use > \NewDocumentCommand. But this word is longer than the whole code of the > macro itself, that blows some simple code really up. On the other hand, > using \def would be very short but is not LaTeX3-ish. \cs_new:Nn doesn't > let me define something without a : at the end. Or would a \tl_new be a > good way? I don't know what the right way of doing things is. Two ways I can think of are \cs_new:Npn \ie {i.\,e.} \tl_new:Nn \ie {i.\,e.} Bruno