Philip Taylor (Webmaster, Ret'd) wrote:
Ron Aaron wrote:
What I wish to do is accumulate text into a paragraph "as I go".
and I offered two solutions, one based on \hboxes and one based
on token-list registers. Off-list, Ron reported problems with
these, and said he was still looking for a \vbox-based solution,
so after considerable introspection I have come up with the
following : it is left to the reader to work out why spaces are
lost and how to overcome it !
\newbox \textbox
\def \addtobox #1%
{%
\setbox \textbox = \vbox
\bgroup
\unvbox \textbox
\setbox 0 = \lastbox
\unhbox 0 \unskip \unskip #1%
\egroup
}
\addtobox {H}
\addtobox {a}
\addtobox {l}
\addtobox {l}
\addtobox {o}
\addtobox { }
\addtobox {t}
\addtobox {h}
\addtobox {e}
\addtobox {r}
\addtobox {e}
\addtobox { }
\addtobox {!}
\addtobox {}
\box \textbox
\end
** Phil.
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