latex.hsnips

global
function math(context) {
    return context.scopes.some(s => s.startsWith("meta.math"));
}
endglobal

snippet today "current date"
``rv = new Date().toDateString()``
endsnippet

snippet box "Box" bA
``rv = '┌' + '─'.repeat(t[0].length + 2) + '┐'``
│ $1 │
``rv = '└' + '─'.repeat(t[0].length + 2) + '┘'``
endsnippet

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

snippet frame "frame" bA
\begin{frame}
  \frametitle{$1}
	$0
\end{frame}
endsnippet

snippet columns "columns" bA
\begin{columns}
  \begin{column}{${1:0.5\textwidth}}
    $3
  \end{column}
  \begin{column}{${2:0.5\textwidth}}
    $4
  \end{column}
\end{columns}
$0
endsnippet

snippet ttb "bold text" iA
\textbf{$1}$0
endsnippet

snippet tti "italic text" iA
\textit{$1}$0
endsnippet

snippet ttu "underline text" iA
\underline{$1}$0
endsnippet

snippet ttt "typewriter text" iA
\texttt{$1}$0
endsnippet

snippet url "link" iA
\url{$1}$0
endsnippet

snippet iit "item" A
\item $0
endsnippet

snippet dm "Math" wA
\[
    $1
\] $0
endsnippet

snippet ali "Align" bA
\begin{align*}
	${1:${VISUAL}}
.\end{align*}
endsnippet

snippet enum "enumerate" bA
\begin{enumerate}
	\item $1
\end{enumerate}
$0
endsnippet

snippet item "item" A
\begin{itemize}
	\item $1
\end{itemize}
$0
endsnippet

snippet fig "Figure environment" b
\begin{figure}[htpb]
	\centering
	\includegraphics[width=${1:0.8}\textwidth]{$2}
	\caption{$3}
	\label{fig:${5:${2}}}
\end{figure}
$0
endsnippet

snippet table "Table environment" b
\begin{table}[htpb]
	\centering
	\caption{${1:caption}}
	\label{tab:${2:label}}
	\begin{tabular}{${3:c}}
  $4
	\end{tabular}
\end{table}
$0
endsnippet

snippet ... "ldots" iA
\ldots$0
endsnippet

context math(context)
snippet `M([1-9])x([1-9])([ d])` "matrix" A
``rv = '\\begin{bmatrix}'``
``count = 1;
msg = '';
diag = (m[3] == 'd');

for (i=0; i < parseInt(m[1],10); i++) {
  diag && (i!=0) ? msg += '0' : msg += '${' + count + ':0}';
  count++;
  for (j=1; j < parseInt(m[2],10); j++) {
    diag && (i!=j) ? msg += ' & 0' : msg += ' & ${' + count + ':0}';
    count++;
  }
  if (i != parseInt(m[1],10)-1) {
    msg += ' \\\\\\ \n';
  }
}
rv = msg;``
\\end{bmatrix}
endsnippet

context math(context)
snippet `vec([1-9])` "column vector" A
``rv = '\\begin{pmatrix}'``
``count=2;
msg = '${1:0}';
for (i = 1; i < parseInt(m[1],10); i++) {
  msg += ' \\\\\\ \n${' + count + ':0}';
  count++;
}
rv = msg;
``
\\end{pmatrix}
endsnippet

context math(context)
snippet QQ "QQ" A
\mathbb{Q}
endsnippet

context math(context)
snippet RR "RR" A
\mathbb{R}
endsnippet

context math(context)
snippet CC "CC" A
\mathbb{C}
endsnippet

context math(context)
snippet ZZ "ZZ" A
\mathbb{Z}
endsnippet

context math(context)
snippet NN "NN" A
\mathbb{N}
endsnippet

context math(context)
snippet ~ "tilde" A
\tilde{$1} $0
endsnippet

context math(context)
snippet bar "bar" A
\overline{$1}$0
endsnippet

context math(context)
snippet `\b([a-zA-Z])bar\b` "bar" A
``rv = '\\overline{' + m[1] + '}'``
endsnippet

context math(context)
snippet hat "hat" A
\hat{$1}$0
endsnippet

context math(context)
snippet `\b([a-zA-Z])hat\b` "hat" A
``rv = '\\hat{' + m[1] + '}'``
endsnippet

context math(context)
snippet `\b([a-zA-Z])vec\b` "vec" A
``rv = '\\vec{' + m[1] + '}'``
endsnippet

context math(context)
snippet +- "plus minus" A
\pm $0
endsnippet

context math(context)
snippet `(?<![\\a-zA-ZÅÆØåæø])([a-zA-Z])\1{1}(?![a-zA-Z])` "greek letters" A
``transliteration = {"a": "\\alpha", "b": "\\beta", "g": "\\gamma", "G": "\\Gamma", "d": "\\delta", "D": "\\Delta", "e": "\\epsilon", "z": "\\zeta", "h": "\\eta", "t": "\\theta", "T": "\\Theta", "k": "\\kappa", "i": "\\iota", "l": "\\lambda", "L": "\\Lambda", "m": "\\mu", "n": "\\nu", "x": "\\xi", "X": "\\Xi", "p": "\\pi", "P": "\\Pi", "r": "\\rho", "s": "\\sigma", "S": "\\Sigma", "o": "\\omega", "O": "\\Omega", "c": "\\chi", "f": "\\phi", "F": "\\Phi", "y": "\\upsilon", "Y": "\\Upsilon", "v": "\\psi", "V": "\\Psi", "u": "\\tau" };
rv = (transliteration[m[1]] || (m[1] + m[1]))``
endsnippet

context math(context)
snippet `([a-zA-Z])([0-9]+) ` "underset" A
``if ( m[2].length == 1 ) { a = '_'; b = ' '; }
  else { a = '_{'; b = '} '; }
  rv = m[1] + a + m[2] + b``
endsnippet

context math(context)
snippet nab "nabla" iA
\nabla $1
endsnippet

context math(context)
snippet `\b([a-zA-Z])cal\b` "cal" A
``rv = '\\mathcal{' + m[1] + '}'``
endsnippet

context math(context)
snippet `([a-zA-Z]),\.` "bf" A
``rv = '\\mathbf{' + m[1] + '}'``
endsnippet

context math(context)
snippet `([a-zA-Z])#` "bb" A
``rv = '\\mathbb{' + m[1] + '}'``
endsnippet

context math(context)
snippet `sr` "^2" iA
^{2}
endsnippet

context math(context)
snippet `cb` "^3" iA
^{3}
endsnippet

context math(context)
snippet `td` "superscript" iA
^{$1}$0
endsnippet

context math(context)
snippet -> "to" iA
\to
endsnippet

context math(context)
snippet !> "mapsto" iA
\mapsto
endsnippet

context math(context)
snippet inf "infinity" iA
\infty $0
endsnippet

context math(context)
snippet => "implies" iA
\implies
endsnippet

context math(context)
snippet <= "implied by" iA
\impliedby
endsnippet

context math(context)
snippet == "equals" iA
&= $0
endsnippet

context math(context)
snippet =< "leq" iA
\leq
endsnippet

context math(context)
snippet >= "geq" iA
\geq
endsnippet

context math(context)
snippet <> "bothways" iA
\Leftrightarrow
endsnippet

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

context math(context)
snippet `((\d+)|(\d*)(\\)?([A-Za-z]+)((\^|_)(\{\d+\}|\d))*)/` "Fraction" iA
\frac{``rv = m[1]``}{$1}$0
endsnippet

context math(context)
snippet `^.*\)/` "Fraction with ()" A
``
    let str = m[0];
    str = str.slice(0, -1);
    let lastIndex = str.length - 1;

    let depth = 0;
    let i = str.length - 1;

    while (true) {
        if (str[i] == ')') depth += 1;
        if (str[i] == '(') depth -= 1;
        if (depth == 0) break;
        i -= 1;
    }

    let results = str.slice(0, i) + "\\frac{" + str.slice(i+1, -1) + "}";
    results += "{$1}$0";
    rv = results;
``
endsnippet

context math(context)
snippet ** "multiplication" iA
\cdot $0
endsnippet

%snippet `\b(d|D)(\\?\w+)[dD](\w{1}|\\\w+) ` "derivatives" A
%``
%if (m[1] == 'd')
%  rv = '\\frac{\\partial ' + m[2] + '}{\\partial ' + m[3] + '}';
%else
%  rv = '\\frac{\\mathrm{d' + m[2] + '}}{\\mathrm{d' + m[3] + '}}';
%``
%endsnippet

context math(context)
snippet part "partial derivative" i
\frac{\partial $1}{\partial ${2:x}} $0
endsnippet

snippet `lim_([\\?a-zA-Z]+)_([\\?a-zA-Z]+) ` A
``rv = '\\lim_{' + m[1] + ' \\to ' + m[2].replace('inf', '\\infty') + '} '``
endsnippet

context math(context)
snippet ,, "text" iA
\text{$1} $0
endsnippet

context math(context)
snippet __ "subscript" iA
_{$1}$0
endsnippet

context math(context)
snippet ^^ "superscript" iA
^{$1}$0
endsnippet

context math(context)
snippet `(?<!\\)(sin|cos|arccos|arcsin|sec|arccot|cot|csc|ln|log|exp|star|perp|sqrt)` "functions" iA
``rv = '\\' + m[0]``{$1} $0
endsnippet

context math(context)
snippet exp "exponential" iA
\text{exp} $0
endsnippet

context math(context)
snippet norm "norm" iA
\|$1\| $0
endsnippet

context math(context)
snippet times "cross" iA
\times $0
endsnippet

context math(context)
snippet AA "for all" iA
\forall $0
endsnippet

context math(context)
snippet EE "exists" iA
\exists $0
endsnippet

context math(context)
snippet int "integral" iA
\int_{${1:-\infty}}^{${2:\infty}} $0
endsnippet

context math(context)
snippet sum "summation" iA
\sum_{${1:i=1}}^{${2:\infty}} $0
endsnippet

context math(context)
snippet () "parenthesis" iA
\left($1\right)$0
endsnippet

snippet mk "inline math" wA
\$$1\$ $0
endsnippet

context math(context)
snippet case "cases" iA
\begin{cases}
    $1
\end{cases}
$0
endsnippet

context math(context)
snippet Nn "cap" iA
\cap$0
endsnippet

context math(context)
snippet UU "cup" iA
\cup$0
endsnippet

context math(context)
snippet inn "in" iA
\in $0
endsnippet

context math(context)
snippet notin "not in" iA
\not\in $0
endsnippet

context math(context)
snippet cc "subset" iA
\subset $0
endsnippet

context math(context)
snippet || "mid" iA
\mid $0
endsnippet

context math(context)
snippet set "set" wA
\\{$1\\} $0
endsnippet

context math(context)
snippet >> ">>" iA
\gg
endsnippet

context math(context)
snippet << "<<" iA
\ll
endsnippet

context math(context)
snippet lr( "left( right)" i
\left( ${1:${VISUAL}} \right) $0
endsnippet

context math(context)
snippet lr| "left| right|" i
\left| ${1:${VISUAL}} \right| $0
endsnippet

context math(context)
snippet lr{ "left\{ right\}" i
\left\\{ ${1:${VISUAL}} \right\\} $0
endsnippet

context math(context)
snippet lr[ "left[ right]" i
\left[ ${1:${VISUAL}} \right] $0
endsnippet

context math(context)
snippet lr< "leftangle rightangle" i
\left<${1:${VISUAL}} \right>$0
endsnippet

context math(context)
snippet pmat "pmat" iA
\begin{pmatrix} $1 \end{pmatrix} $0
endsnippet

context math(context)
snippet bmat "bmat" iA
\begin{bmatrix} $1 \end{bmatrix} $0
endsnippet

context math(context)
snippet != "equals" iA
\neq $0
endsnippet

context math(context)
snippet iff "if and only if" iA
\iff $0
endsnippet