# vim:ft=snippets:
# https://castel.dev/post/lecture-notes-1/

global !p
def math():
    return vim.eval('vimtex#syntax#in_mathzone()') == '1'
endglobal

snippet template "Basic template" b
\documentclass[a4paper]{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage{babel}
\usepackage{amsmath, amssymb}

% figure support
\usepackage{import}
\usepackage{xifthen}
\pdfminorversion=7
\usepackage{pdfpages}
\usepackage{transparent}
\newcommand{\incfig}[1]{%
	\def\svgwidth{\columnwidth}
	\import{./figures/}{#1.pdf_tex}
}

\pdfsuppresswarningpagegroup=1

\begin{document}
	$0
\end{document}
endsnippet

snippet beg "begin{} / end{}" bA
\\begin{$1}
	$0
\\end{$1}
endsnippet

priority 100
snippet ... "ldots" iA
\ldots
endsnippet

snippet table "Table environment" b
\begin{table}[${1:htpb}]
	\centering
	\caption{${2:caption}}%
	\label{tab:${3:label}}
	\begin{tabular}{${5:c}}
	$0${5/((?<=.)c|l|r)|./(?1: & )/g}
	\end{tabular}
\end{table}
endsnippet

snippet fig "Figure environment" b
\begin{figure}[${1:htpb}]
	\centering
	${2:\includegraphics[width=0.8\textwidth]{$3}}
	\caption{${4:$3}}%
	\label{fig:${5:${3/\W+/-/g}}}
\end{figure}
endsnippet

snippet enum "Enumerate" bA
\begin{enumerate}
	\item $0
\end{enumerate}
endsnippet

snippet item "Itemize" bA
\begin{itemize}
	\item $0
\end{itemize}
endsnippet

snippet desc "Description" b
\begin{description}
	\item[$1] $0
\end{description}
endsnippet

snippet on "O(n)" b
\mathcal{O}(n)
endsnippet

snippet mk "Math" wA
$${1}$`!p
if t[2] and t[2][0] not in [',', '.', '?', '-', ' ']:
	snip.rv = ' '
else:
	snip.rv = ''
`$2
endsnippet

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

context "math()"
snippet '([A-Za-z])(\d)' "auto subscript" wrA
`!p snip.rv = match.group(1)`_`!p snip.rv = match.group(2)`
endsnippet

context "math()"
snippet '([A-Za-z])_(\d\d)' "auto subscript2" wrA
`!p snip.rv = match.group(1)`_{`!p snip.rv = match.group(2)`}
endsnippet

context "math()"
snippet // "Fraction" iA
\\frac{$1}{$2}$0
endsnippet

context "math()"
snippet '((\d+)|(\d*)(\\)?([A-Za-z]+)((\^|_)(\{\d+\}|\d))*)/' "Fraction" wrA
\\frac{`!p snip.rv = match.group(1)`}{$1}$0
endsnippet