How do I test for empty labeltext?

24 Oct 2011

      Hello,

The following code

\setuplabeltext[test=]
test is \doifemptyelse{\labeltext{test}}{empty}{not empty}

doesn't work as intended for the reasons that I approximately
understand (not exactly, but I understand that there might be a lot of
weird stuff returned when I ask for labeltext). However I have no idea
how to check if text is empty or not.

As an exception :) :) :), MKIV hints should be highly appreciated and
enough for this particular application.

Mojca

PS: the extended example looks approximately as follows:

\def\document#1#2{
    \setuplabeltext[name={{#1}},company={{#2}}]
    \startstandardmakeup
    \setups{content}
    \setups{decoration}
    \stopstandardmakeup
}

\startsetups content
    This is for \labeltext{name}%
    \doifemptyelse{\labeltext{company}}{.}{, working for \labeltext{company}.}
\stopsetups

I have no problem changing the complete code and I can already find a
workaround by defining some new "if" inside definition of \document,
but I'm still slightly curious to know how to test for existence of a
label. The sources contain
    definelabels("setuplabeltext", data.texts, true)
and it is not too clear to me how to decrypt the rest with too much pain.

Mojca Miklavec

Hans Hagen

Mojca Miklavec

Hans Hagen

Aditya Mahajan

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