editorsindentationtexstudio
Is there an easy way of selecting the text in vertical? Something similar to the action described here.
Why am I asking it? Because I would like to fix the indentation of an entire section in a couple of easy steps. I would prefer to avoid the option of selecting line by line and fixing the spaces every time.
Most TeX compilers provide the feature \pdfsavepos that allows to record the position on the shipout page. It was introduced in pdfTeX and is nowadays available in pdfTeX, both modes DVI and PDF, XeTeX, and LuaTeX.
Because the position is not known, before the page is output, some kind of reference system is needed. Package zref-savepos of project zref provides an interface to the \pdfsavepos feature.
\documentclass{article}
\usepackage{zref-savepos}
\makeatletter
% \zsaveposx is defined since 2011/12/05 v2.23 of zref-savepos
\@ifundefined{zsaveposx}{\let\zsaveposx\zsavepos}{}
\makeatother
\newcounter{hposcnt}
\renewcommand*{\thehposcnt}{hpos\number\value{hposcnt}}
\newcommand*{\SP}{% set position
\stepcounter{hposcnt}%
\zsaveposx{\thehposcnt s}%
}
\makeatletter
\newcommand*{\UP}{% use previous position
\zsaveposx{\thehposcnt u}%
\zref@refused{\thehposcnt s}%
\zref@refused{\thehposcnt u}%
\kern\zposx{\thehposcnt s}sp\relax
\kern-\zposx{\thehposcnt u}sp\relax
}
\makeatother
\begin{document}
This \SP is the first line\\
\UP One more \SP line\\
\UP And another.
\end{document}
Some remarks:
The label names are automatically chosen via the help of a counter. That makes the usage easier, because the user don't need to invent unique label names.
The internal position data are integer numbers with implicit unit sp.
\zref@refused marks the reference as used to allow LaTeX the notification for undefined references.
Reposted the above comment:
Text selection is currently not supported in the internal viewer. Please use an external viewer for this. You can open it directly from the menu bar of the internal viewer.
Best Answer
In TeXstudio, you can select the blocks with ctrl+alt+shift+leftmouse+drag. But I find easier to do it with notepad++ (free) as advocated by @Sango.