From: Mojca Miklavec <mojca.miklavec.lists@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: How do I test for empty labeltext?
Date: Mon, 24 Oct 2011 19:41:17 +0200 [thread overview]
Message-ID: <CALBOmsZRaAdXxOgDSeF==FkqKepZWbSoo03wKmLhfV+8ONETkw@mail.gmail.com> (raw)
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.
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next reply other threads:[~2011-10-24 17:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-24 17:41 Mojca Miklavec [this message]
2011-10-24 18:41 ` Hans Hagen
2011-10-25 9:26 ` Mojca Miklavec
2011-10-25 10:14 ` Hans Hagen
2011-10-25 16:36 ` Aditya Mahajan
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