horizontal alignment
I want a horizontal line to the left and right of some text, that is at most one line wide. The lines should be equally sized such that they fill the remaining horizontal space (like two \hfills in a \hbox).
In case it's not clear what I want, at the top of this page there is a row of buttons labeled Questions | Tags | Users | Badges | Unanswered. And above that row of buttons are two horizontal lines filling the remaining space around a symbol. That is what I want to accomplish in LaTeX.
Use \hfill:
\documentclass{article}
\begin{document}
\begin{minipage}{.2\textwidth}
\begin{verbatim}
X := 3
Y := Z * W
Q := X + Y
\end{verbatim}
\end{minipage}
\hfill $\Rightarrow$ \hfill
\begin{minipage}{.2\textwidth}
\begin{verbatim}
X := 3
Y := Z * W
Q := 3 + Y
\end{verbatim}
\end{minipage}
\end{document}
Note that the arrow seem not centered because the space not filled in minipages. For a better results you can use varwidth package instead of minipage
\documentclass{article}
\usepackage{varwidth}
\begin{document}
\hfill
\begin{varwidth}{.2\textwidth}
\begin{verbatim}
X := 3
Y := Z * W
Q := X + Y
\end{verbatim}
\end{varwidth}%
\hfill$\Rightarrow$\hfill%
\begin{varwidth}{.2\textwidth}
\begin{verbatim}
X := 3
Y := Z * W
Q := X + Y
\end{verbatim}
\end{varwidth}
\hfill
\end{document}
Using \dotfill instead of \hfill you can check visually that both block are reaally equally spaced.
Note: Be careful of remove spaces around \hfill (thanks to David to note the lack of ending %).
You need to alter the value of \labelsep for the list. The default is 0.5em. This changes that to 1.5em:
\documentclass{article}
\usepackage{regexpatch}
\usepackage{algpseudocode}
\makeatletter
\xpatchcmd{\algorithmic}{\labelsep 0.5em}{\labelsep 1.5em}{\typeout{Success!}}{\typeout{Oh dear!}}
\makeatother
\begin{document}
\begin{algorithmic}[1]
\State aaa
\State bbb
\State ccc
\State ddd
\State eee
\State fff
\State ggg
\State hhh
\State iii
\State jjj
\State kkk
\State lll
\State aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaa
\end{algorithmic}
\end{document}
Best Answer
You can add the lines using
\hrulefilland create the line using\makebox[\linewidth]. The vertical alignment is a little tricky. I don't know how to raise the filler, so one way is to lower the text first and than raise it again with the lines.Result: