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 Re: LaTeX3 access, pdfTeX extensions, &c. Benjamin BAYART <[log in to unmask]> Tue, 15 Nov 2005 10:23:11 +0100 text/plain (22 lines) Le Tue, Nov 15, 2005 at 10:51:30AM +1030, Will Robertson: > > So we get ... (other "1") (cseq "\previouslet") (cseq "\test") > and end up with the equivalent of \let\test=1 . > > Ohhh, but I think I get it now. This is no more useful than actually > looking at nodes, since anything that survives to be \previouslet > will be turned into a node anyway. Yes. It's more clearly seen with: \hbox{a}\previouslet\test What is \test? The right brace? The box? The box is not a token any more. So we have to keep on that: - look ahead for tokens - look backward for nodes. Regards, Benjamin.