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Emacs Configuration

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

Requirements

external packages:

  # fonts (opensans in latex article preamble)
  yay -S ttf-inconsolata ttf-opensans
  # spelling flyspell-buffer
  yay -S aspell aspell-de aspell-en \
  hunspell hunspell-de hunspell-en_US \
  languagetool
  # org-mode latex-mode ox-latex
  yay -S biber bibtex2html texlive-bibtexextra texlive-core \
  texlive-fontsextra texlive-formatsextra texlive-langgreek \
  texlive-langjapanese texlive-latexextra texlive-pgf-pie \
  texlive-pgfopts texlive-pictures texlive-pstricks \
  texlive-publishers texlive-science texlive-slashbox
  # ledger-mode
  yay -S ledger
  # python-mode
  yay -S python-pylint
  # emacs-application-famework EAF
  yay -S --needed git nodejs aria2 libreoffice wmctrl xdotool jre-openjdk \
  python-pyqt5 python-pyqt5-sip python-pyqtwebengine python-qrcode \
  python-feedparser python-dbus python-pyinotify python-markdown \
  python-grip filebrowser-bin python-epc
  # other
  yay -S ditaa plantuml r

Optional package for EAF see in Installation.

Installation

Install into ~/.config/emacs (must be empty)

  git clone http://gogs.weseng.de/daniel/emacs.git ~/.config/emacs

or copy all files of this directory into your ~/.config/emacs directory

  • for Emacs version < 27 create symbolic link to the init file
  • ln -s ~/.config/emacs/init ~/.emacs (or ~/.emacs.el, ~/.emacs.d/init.el)

LaTeX sytling files: copy/merge the texmf directory into your home directory ~/texmf

optional for EAF

  yay --editmenu -S mupdf python-pymupdf

edit PGKBUILD file for python-pymupdf to:

prepare() {
  cd "${_name}-${pkgver}"
  patch --forward --strip=1 --input="${HOME}/.config/emacs/scripts/fix-pymupdf-library-linking-for-arcolinux.patch"
}

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

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\"]
});
});
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