On Sat, 9 Nov 2013, Peter Münster wrote:
Hi,
How could I avoid that error here please:
--8<---------------cut here---------------start------------->8---
\def\beginInvoice{\dosingleempty\dobeginInvoice}
\def\dobeginInvoice[#1]{\grabbufferdata[myLetter][beginInvoice][endInvoice]}
\def\startInvoice#1\stopInvoice{bla}
\starttext
\beginInvoice
\startInvoice test \stopInvoice
\endInvoice
\stoptext
One possibility is to restrict optional arguments to one line:
\def\beginInvoice{\bgroup\obeylines\dosingleempty\dobeginInvoice}
\def\dobeginInvoice[#1]{\egroup\grabbufferdata[myLetter][beginInvoice][endInvoice]}
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