emacs/README.org

Emacs Configuration

• Installation
• Packages
  • Org
  • Multiple cursors
  • Other packages
• Information
• Errors
• TODOs

This is an ongoing evolution of Emacs configuration files, inspired by a bunch of online resources.

Installation

Run one of the following install script commands.

curl sh -c "$(curl -fsSL http://gogs.weseng.de/daniel/emacs/raw/master/scripts/install.sh)"
wget sh -c "$(wget -O- http://gogs.weseng.de/daniel/emacs/raw/master/scripts/install.sh)"
fetch sh -c "$(fetch -o - http://gogs.weseng.de/daniel/emacs/raw/master/scripts/install.sh)"

Installation path is ~/.config/emacs. See details and other installed linux packages as requirements inside sripts/install.sh.

Packages

M->	end-of-buffer
M-<	beginning-of-buffer
C-x h	mark-whole-buffer	mark the whole buffer
C-x TAB	indent-rigidly	indent selected region
C-x RET f	set-buffer-file-coding-system	e. g. set to utf-8
	decode-coding-region	e. g. decode to utf-8 (郭富城Aaron Kwok)
	diff-buffer-with-file	show a diff between buffer and file
C-h v	counsel-describe-variable	help text of variable
C-h f	counsel-describe-funtion	help text of function
C-r	query-replace-regexp	replace text. (former isearch-backward)
C-x C-b	ibuffer	list buffers (former list-buffers)
C-x |	toggle-window-split	toggle horizontal/vertical 2 window split
M-up	move-line-up	move current line up
M-down	move-line-down	move current line down
mouse-6		scroll right
mouse-7		scroll left
mouse-8	previous-buffer
mouse-9	next-buffer

General key bindings and functions

Org

C-c |	org-table-create-or-convert-from-region	convert seperator 1. TAB, 2. comma, 3. space
C-u C-c |	org-table-create-or-convert-from-region	convert using comma (CSV) seperator
C-u C-u C-c |	org-table-create-or-convert-from-region	convert using TAB
C-u N C-c |	org-table-create-or-convert-from-region	convert using N spaces
C-u REGEX C-c |	org-table-create-or-convert-from-region	convert using regex to match seperator
C-c C-x \	org-toggle-pretty-entries	e. g. displays \pm as ±
Org table
S-right	org-shiftright	move a single cell right
S-left	org-shiftleft	move a single cell left
C-c SPC	org-table-blank-field	clear cell
Org src block
C-c C-v t	org-babel-tangle	create a file with the content of the block, use in header: :tangle filename
Org export
f5		in org export to html
f6		in org export to LaTeX

Org key bindings and functions

Important

• For Gnuplot source blocks: Do not use % inside Gnuplot source block but \% or in format command \%%

  • % starts a comment in LaTeX and therefore stops further interpretations like a closing bracket } etc.

    • Gnuplot graphics are imported as .tex (text, axis, legend) and .eps (figure) files.
  • \% \%% can also be used for HTML SVG export

Links

• https://tex.stackexchange.com/questions/167583/include-custom-file-into-header-with-org-mode/201674
• https://orgmode.org/manual/LaTeX-specific-export-settings.html

Multiple cursors

M-m s m a	mc/mark-all-dwim	try to mark all at point
C-v		jump to next cursor
M-v		jump to previous cursor
C-'		hide/unhide lines without a cursor

Multiple cursors key bindings and functions

Other packages

rainbow-mode.el

https://elpa.gnu.org/packages/rainbow-mode.html rainbow-mode is a minor mode for Emacs which displays strings representing colors with the color they represent as background.

Information

Interlock symlinks and auto-save files. Be aware that symbolic links of the form “.#*” are not auto-save files but interlocks to prevent the simultaneous editing of the same file. See Interlocking in the EmacsManual for details.

Errors

• failed execution of bibtex2html

  • see bib2htmlxxxxxx.blg for errors, e.g.

    • I couldn't open style file acmu.bst
  • copy/merge the texmf directory into your home directory.

• when using this in an Org mode buffer: #+HEADER: :fit yes :imagemagick yes :iminoptions -density 300

  • can leads to:

    • convert: attempt to perform an operation not allowed by the security policy `gs' @ error/delegate.c/ExternalDelegateCommand/378.
    • convert: no images defined `DESY_logo_tikz.png' @ error/convert.c/ConvertImageCommand/3282.

  • edit /etc/ImageMagick-7/policy.xml and comment out

    • <policy domain="delegate" rights="none" pattern="gs" />

TODOs

• Org / global configuration

  • Page formatting

    • Modify HTML styling

      • Printed page layout, white styled figures

  • Custom export function for HTML and \(\LaTeX\), with;

    • Shift - <f5>, Shift - <f6> with open file
  • delete temp. generated export files

• Figures

  • Gnuplot

    • plot transposed files/tables
    • preamble in function and call this function for every gnuplot block either manually or automatically with a hook?!

• Tables

  • Wrap Table in div element. For smartphone scrolling.

• Table of contents

  • \(\LaTeX\); currently headers with no-number property means not included in TOC
  • HTML; currently generated list, like lot and lol, are not included in toc but own headers without numbers are.

• Equation cancel/strike out with color line

  • hcancel[color]{}
  • Example: \(\hcancel[red]{f_{X_2}(x_2)}}\)

  • Definition:

    • Preamle: #+LATEX_HEADER: \usepackage{cancel}
#+LATEX_HEADER: \newcommand\hcancel[2][black]{\setbox0=\hbox{$#2$}%
#+LATEX_HEADER: \rlap{\raisebox{.45\ht0}{\textcolor{#1}{\rule{\wd0}{1pt}}}}#2} \\

    • hcancel: [\"{\\\\setbox0=\\\\hbox{$#2$}\\\\rlap{\\\\raisebox{.45\\\\ht0}{\\\\textcolor{#1}{\\\\rule{\\\\wd0}{1pt}}}}#2}\",2]

      MathJax.Ajax.config.path[\"Contrib\"] = \"https://cdn.mathjax.org/mathjax/contrib\";
      MathJax.Hub.Register.StartupHook(\"TeX Jax Ready\",function () {
      MathJax.Hub.Insert(MathJax.InputJax.TeX.Definitions.macros,{
        cancel: [\"Extension\",\"cancel\"],
        bcancel: [\"Extension\",\"cancel\"],
        xcancel: [\"Extension\",\"cancel\"],
        cancelto: [\"Extension\",\"cancel\"]
      });
      });