snippet \begin "begin{} .. end{}" bA
\begin{$1}$2
$0
\end{$1}
endsnippet

snippet mk "Math" wA
$${1}$ $0
endsnippet
snippet dm "Math" iA
\[
	${1:${VISUAL}}
.\] $0
endsnippet

snippet // "Fraction" iA
\\frac{$1}{$2}$0
endsnippet

snippet fun "Function" wA
f: \R \to \R
endsnippet
snippet sum "Sum" wA
\sum_{n=1}^{${1:\infty}} $0
endsnippet
snippet !> "Maps to" wA
\mapsto
endsnippet
snippet -> "To" wA
\to
endsnippet

snippet latex "latex"
\documentclass{report}
\usepackage[a4paper,margin=30truemm]{geometry}
\usepackage{polyglossia}
% font
\usepackage{fontspec}
\setmainfont{Luciole}

\title{$1}
\author{Robert Günzler}
\date{`!v strftime('%Y-%m-%d')`}

\begin{document}
\title{awesome title}

$0

\end{document}
endsnippet

snippet letter "letter"
\documentclass{dinbrief}
\usepackage{graphicx}
\usepackage[a4paper,margin=30truemm]{geometry}
% language
\usepackage{polyglossia}
\setdefaultlanguage[spelling=new]{german}
% font
\usepackage{fontspec}
\setmainfont{Luciole}
% dinbrief options
\nowindowtics
\nowindowrules

\newcommand{\setsign}{\includegraphics[height=30truemm]{/home/robert/Pictures/sign.png}}
\signature{Robert Günzler}
\address{
	Robert Günzler \\\\
	Street\\\\
	PLZ Berlin}

\date{\today}
\place{Berlin}
%\subject{{\bf anliegen}}

\begin{document}
\begin{letter}{
	$1}

\opening{${2:Sehr geehrte Damen und Herren,}}

$0

\vspace{10truemm}
\closing[\protect\setsign]{${3:Mit freundlichen Grüßen,}}
\end{letter}
\end{document}
endsnippet