[l2h] Checking whether a label is defined

Igor Pechtchanski pechtcha at cs.nyu.edu
Fri Nov 12 17:58:45 CET 2004

Hi, everyone,

I'm attempting to write a macro that would test whether a label being
referenced by a \ref command has been defined.  The following LaTeX
snippet illustrates what I would like to do, but it doesn't work in


Is there a way to do this test in LaTeX2HTML?  It doesn't have to work in
LaTeX, BTW -- I can put the test in an {htmlonly} environment.
Thanks in advance,
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