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You introduce "spurious spaces" (line break sometimes adds a space) in you loops. See ...
Yes, you're right. A programmer, I tend to think that white space is always good for readability. Thanks for that tip. But I DO like the \dorecurse(...) version better. I didn't know of this macro. I couldn't survive context with this list! Thanks very much. IMPORTANT NOTICE: This e-mail and any attachment to it are intended only to be read or used by the named addressee. It is confidential and may contain legally privileged information. No confidentiality or privilege is waived or lost by any mistaken transmission to you. The RTA is not responsible for any unauthorised alterations to this e-mail or attachment to it. Views expressed in this message are those of the individual sender, and are not necessarily the views of the RTA. If you receive this e-mail in error, please immediately delete it from your system and notify the sender. You must not disclose, copy or use any part of this e-mail if you are not the intended recipient.