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The environment alltt skips a line before and after its use. Is there a way to modify this behaviour to avoid these empty lines ?
*** Edit I tried to get inspired by a similar post about figure but I am a noob and don't really understand how to modify the answer.
Like most latex displays it is a list and so has \topsep spacing above it (note thiis is stretchable vertical space not really a blankline) You can set it to 0 eiether inline or in a \newenvironment definition
\documentclass{article}
\usepackage{alltt}
\begin{document}
xxxxxxxxxxxxxxxxxxxx
{\setlength\topsep{0pt}\begin{alltt}
one two three
four five six
\end{alltt}}%
xxxxxxxxxxxxxxxxxxxxxxx
\end{document}
to redefine alltt to always do this you can use
\let\oldalltt\alltt
\let\endoldalltt\endalltt
\renewenironment{alltt}{\setlength\topsep{0pt}\oldalltt}{\endoldalltt}
alltt environment (with \renewenvironment like in the mentioned question) to alter only alltt?
Oct 14, 2016 at 17:32
{} group around the setting. simplest definition if you want lots of these is just \newenvironment{alltt2}{\setlength\topsep{0pt}\alltt}{\endalltt}
Oct 14, 2016 at 17:40
knitr which produce .tex with alltt environments. That's why I'd like to redefine this environment, and not define to define a new one with another name.
Oct 14, 2016 at 17:44