On 1/12/2016 7:29 PM, Wolfgang Schuster wrote:
Alan BRASLAU <mailto:alan.bras...@cea.fr>
12. Januar 2016 um 19:07
Hello,
Jean-Michel pointed out to me the following curiosity:
\starttext
\input tufte
\startalignment[middle]
\input ward
\stopalignment
\input tufte
\stoptext
The startalignment applies to the preceding text, too. Strange...
It’s a normal behaviour for TeX, the question is should \startalignment
end the previous paragraph or not.
when tex breaks a paragraph into lines the current values of relevant
parameters is used (left and right skips, spacing, etc)
\bgroup \raggedright \inptu tufte \par \egroup
\bgroup \raggedright \inptu tufte \egroup \par
I never noticed this before as I have the habit of coding
\startalignment\stopalignment blocks set-off with leading and trailing
blank lines for better readability. But such practice could lead to
undesired results. Consider the following example:
\setupwhitespace [big]
\starttext
\input tufte
\startalignment[middle]
\input ward
\stopalignment
\input dawkins
\stoptext
So \stopalignment implicitly imposes a \par.
If I were to omit the blank line before \startalignment so that no big
whitespace be included before the centered block, the tufte text will
get middle aligned. Also, perhaps I might not wish for the dawkins text
to be separated by a big whitespace, logically as in:
You can use \startpacked … \stoppacked to suppress blank lines inserted
by \setupwhitespace.
Wolfgang
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