texmacs-users - [TeXmacs] How to tell if a label is defined

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[TeXmacs] How to tell if a label is defined

From: "Sam Liddicott" <address@hidden>
To: address@hidden
Subject: [TeXmacs] How to tell if a label is defined
Date: Mon, 19 Jul 2010 12:31:58 +0100
Envelope-to: address@hidden
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How do I tell if a pageref is valid? In latex I could do something like:

\@ifundefined{r@label-\labelname}

and I could tell if a label "labelname" was defined even if it was defined further on in the document (of course it would take a couple of passes to get it all right).

How do I do the equivalent in texmacs? I need to generate conditional forward references - a reference to an additional block in a sequence, but only if the additional block is actually defined.

Sam

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[TeXmacs] How to tell if a label is defined, Sam Liddicott, 07/19/2010

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