doc.md

Here’s a complete quick-reference for all snippets: the “new” pack plus your overlay (mine) and your custom file. I grouped them by category. Columns:

• Trigger: what you type (regex/patterns shown where relevant)
• Expands to: final LaTeX inserted
• Mode: Math / Text / Both
• Auto?: Yes for autosnippet (expands as you type), No for manual (expand key)
• Notes: boundary checks, line-start, packages, custom macros, etc.

Legend for conditions

• Boundary: won’t fire if immediately after a letter or backslash
• NoBackslash: won’t fire if immediately after a backslash
• LineStart: must be at line start

Text-mode and general

Trigger	Expands to	Mode	Auto?	Notes
pac	\usepackage[options]{package}	Text	No	New pack
ali	\begin{align*} … .\end{align*}	Text	No	LineStart
beg	\begin{env} … \end{env}	Text	No	LineStart
bigfun	Align* function mapping skeleton	Text	No	LineStart
fig	figure env with includegraphics/caption/label	Text	No	Overlay
atf	\autoref{…} …	Text	No	Overlay
hpr	\hyperref[ID]{text} …	Text	No	Overlay
lbl	\label{…}	Both	No	wordTrig=false
rmk	\begin{remark} … \end{remark}	Text	No	Overlay
dfn	\begin{definition} … \end{definition}	Text	No	Overlay
wrt	w.r.t.\	Text	No	Overlay
iid	i.i.d.\	Text	No	Overlay
wp	w.p.\	Both	No	Overlay
%--	Unicode divider line	Text	Yes	Overlay, visual separator
letw	“Let \Omega \subset \C be open.”	Text	No	New pack
qed	\qed	Text	No	Overlay

Math delimiters and wrappers

Trigger	Expands to	Mode	Auto?	Notes
mk	( … )	Text	Yes	New pack (TeX); also available in markdown setup
dm	[ … ]	Text	Yes	New pack (TeX/markdown variants)
fm	( … )	Both	Yes	Overlay
lrd	\left( … \right)	Math	Yes	Overlay
lrq	\left[ … \right]	Math	Yes	Overlay
{}	{ … }	Math	No	Overlay; wordTrig=false
<>	\langle … \rangle	Math	Yes	Overlay
lr,	\left\langle … \right\rangle	Math	Yes	Overlay
lr	\left( … \right)	Math	No	New pack
lr(	\left( … \right)	Math	No	New pack
lr[	\left[ … \right]	Math	No	New pack
lr{	\left{ … \right}	Math	No	New pack
lr		\left	… \right
lrb	\left{ … \right}	Math	No	New pack
lra	\left< … \right>	Math	No	New pack (you chose this “new” lra)
ceil	\lceil … \rceil	Math	No	Overlay
Ceil	\left\lceil … \right\rceil	Math	No	Overlay
flr	\lfloor … \rfloor	Math	No	Overlay
Flr	\left\lfloor … \right\rfloor	Math	No	Overlay
abs	\vert … \vert	Math	No	Overlay wins (priority), instead of new’s \abs{…}
Abs	\left\vert … \right\vert	Math	No	Overlay
norm	\lVert … \rVert	Math	No	Overlay wins (priority)
Norm	\left\lVert … \right\rVert	Math	No	Overlay
rm	\mathrm{…}	Math	No	Overlay
Acal/acal	\mathcal{A}	Math	No	Overlay (pattern)
Ascr/ascr	\mathscr{A}	Math	No	Overlay (pattern)
\ll (any double letter)	\mathbb{l}	Math	Yes	Both sets provide; same result

Math environments

Trigger	Expands to	Mode	Auto?	Notes
split	\begin{split} … \end{split}	Math	No	Overlay
case	dcases scaffold with “if/otherwise”	Math	No	Overlay wins (priority)
opmin	aligned min problem skeleton	Text	No	Overlay
opmax	aligned max problem skeleton	Text	No	Overlay
opPD	primal/dual LP alignedat skeleton	Text	No	Overlay

Tables / arrays / matrices

Trigger	Expands to	Mode	Auto?	Notes
table(r) (c)	full table+tabular with booktabs	Text	Yes	LineStart; Overlay
ary(r) (c)	\begin{array}{…} … \end{array}	Math	Yes	Overlay
(b	p)mat(r) (c)	bmatrix/pmatrix grid r×c	Math	Yes
pmat	\begin{pmatrix} … \end{pmatrix}	Math	No	New pack
bmat	\begin{bmatrix} … \end{bmatrix}	Math	No	New pack
cvec	column vector pmatrix skeleton	Math	No	New pack

Fractions and auto-bracing

Trigger	Expands to	Mode	Auto?	Notes
//	\frac{…}{…}	Math	Yes	Overlay
expr/	\frac{expr}{…}	Math	Yes	New pack and overlay both provide; supports peeling (…)
(pattern) .*)/	\frac{…}{…} with (…) peeling	Math	Yes	New pack (pattern fraction)
(pattern) (\w)/ etc.	\frac{token}{…}	Math	Yes	New pack more cases
([a])(\d)	a_{d}	Math	Yes	New pack: auto-subscript letter+digit
([a])_(\d\d)	a_{dd}	Math	Yes	New pack: a_11 → a_{11}
Note	You chose the new auto-bracing; old a_12/a^12/xx rules are excluded from overlay

Comparisons and logic

Trigger	Expands to	Mode	Auto?	Notes
<=	\le	Math	No	New pack wins (you chose “new”)
>=	\ge	Math	No	New pack wins
geq	\geq	Math	Yes	Overlay word form; Boundary
leq	\leq	Math	Yes	Overlay word form; Boundary
neq	\neq	Math	Yes	Overlay word form; Boundary
!=	\neq	Math	Yes/No	Both sets define; same result
==	&= … \ (align step)	Math	No	New pack wins
->	\to	Math	No	Both sets; same
<->	\leftrightarrow	Math	No	Both sets; same
=>	\implies	Math	Yes	Overlay
=<	\impliedby	Math	Yes	Overlay
iff	\iff	Math	Yes	Boundary
~~	\thickapprox	Math	No	Overlay
~=	\cong	Math	No	Overlay
~-	\simeq	Math	No	Overlay
cir	\circ	Math	No	Overlay
@>	\hookrightarrow	Math	No	Overlay
			\mid	Math

Sets, sums, limits, products

Trigger	Expands to	Mode	Auto?	Notes
sum	\sum_{n=1}^{\infty} a_n z^n	Math	No	New pack wins (series scaffold)
Sum	\sum_{i=1}^{\infty} …	Math	No	Overlay
scup	\sqcup	Math	No	Overlay
cup	\cup	Math	No	Both
Cup	\bigcup_{…}^{…} …	Math	No	Overlay
cap	\cap	Math	No	Both
Cap	\bigcap_{…}^{…} …	Math	No	Overlay
Conj	\bigwedge_{…}^{…} …	Math	No	Overlay
Disj	\bigvee_{…}^{…} …	Math	No	Overlay
sub␠	\subset	Math	Yes	Overlay (trigger includes space)
nsub	\nsubseteq	Math	No	Overlay
sube	\subseteq	Math	No	Overlay
subn	\subsetneq	Math	No	Overlay
\sups	\supset	Math	No	Overlay (regTrig)
nsup	\nsupseteq	Math	No	Overlay
\supe	\supseteq	Math	No	Overlay (regTrig)
\supn	\supsetneq	Math	No	Overlay (regTrig)
nlim	\nolimits	Math	No	Overlay
lim	\lim_{n \to \infty} …	Math	No	Both; overlay boundary-checked
limsup	\limsup_{n \to \infty} …	Math	No	New pack
lsup	\limsup_{n \to \infty} …	Math	No	Overlay
linf	\liminf_{n \to \infty} …	Math	No	Overlay
prod	\prod_{n=1}^{\infty} …	Math	No	New pack
prd	\prod	Math	No	Overlay (boundary)
Prd	\prod_{n=1}^{\infty} …	Math	No	Overlay
coprd	\coprod_{n=1}^{\infty} …	Math	No	Overlay
sequence	(a_n)_{n=m}^{\infty}	Math	No	New pack

Calculus, operators, and common math

Trigger	Expands to	Mode	Auto?	Notes
pt	\partial	Math	No	Overlay
pdif	\frac{\partial V}{\partial x} …	Math	No	Overlay
part	\frac{\partial …}{\partial …}	Math	No	New pack
dif	\frac{\mathrm{d}y}{\mathrm{d}x} …	Math	No	Overlay
ddx	\frac{\mathrm{d/…}}{\mathrm{d…}} …	Math	No	New pack
sq	\sqrt{…} …	Math	Yes	Both; overlay boundary-checked
oo	\infty	Math	No	Overlay
ooo	\infty	Math	No	New pack
^oo	^{\infty}	Math	No	Overlay (regTrig)
EE	\exists	Math	No	Both
AA	\forall	Math	No	Both
nin	\notin	Math	No	Overlay
notin	\not\in	Math	No	New pack
inv	^{-1}	Math	No	Overlay
invs	^{-1}	Math	No	New pack (alt trigger)
tp	^{\top}	Math	No	Overlay; Boundary
prp	^{\perp}	Math	No	Overlay
cp	^{c}	Math	No	Overlay
qs	^{2}	Math	No	Overlay
int	\int	Math	No	Overlay; Boundary
dint	\int_{-∞}^{∞} …	Math	No	New pack wins
not	\lnot	Math	No	Overlay; Boundary
--	\setminus	Math	No	Overlay
\\\	\setminus	Math	No	New pack (literal backslashes)
st	^{\star}	Math	No	Overlay; Boundary
**	^{\ast}	Math	No	Overlay wins (priority)
_*	_{\ast}	Math	No	Overlay
^.	\dot{…} …	Math	No	Overlay (regTrig)
dot{.	\ddot{…} …	Math	No	Overlay (regTrig)
>>	\gg	Math	No	Both
<<	\ll	Math	No	Both
ind	\mathbbm{1}_{…} …	Math	No	Overlay (needs bbm)
spt	\mathop{\mathrm{supp}}(… ) …	Math	No	Overlay
mean	\mathbb{E}_{…}[…] …	Math	No	Overlay
Var	\Var_{…}[…] …	Math	No	Overlay (custom macro)
Cov	\Cov_{…}[…] …	Math	No	Overlay (custom macro)
Pr	\Pr_{…}(…) …	Math	No	Overlay
sim	\sim	Math	No	Overlay
apx	\approx	Math	No	Overlay
bino	\binom{…}{…} …	Math	No	Overlay
ems	\varnothing	Math	No	Overlay
::	\colon	Math	No	Overlay
:=	\coloneqq	Math	No	Overlay
=:	\eqqcolon	Math	No	Overlay
idd	\identity_{…} …	Math	No	Overlay (custom macro)
quo	\quotient{…}{…} …	Math	No	Overlay (custom macro)
	_ (regex)	\at{…}{…}{…} …	Math	No
vph	\vphantom{…} …	Math	No	Overlay
tg	\triangle	Math	No	Overlay
<> (in new pack)	\diamond	Math	No	New pack (NB: different from overlay’s angle trigger)
norm (new)	| … |	Math	No	New pack still exists; overlay version wins
stt	_\text{…} …	Math	No	New pack
tt	\text{…} …	Math	No	New pack
xx	\times	Math	No	New pack

Greek letters and math operators (names without backslash)

• From both sets (autosnippets; NoBackslash/Boundary): typing the bare word inserts the backslashed macro.
• Triggers
  • Greek (lowercase, plus uppercase where defined by LaTeX): alpha, beta, gamma/Gamma, delta/Delta, theta/Theta, vartheta, lambda/Lambda, mu, nu, pi/Pi, rho, sigma/Sigma, upsilon/Upsilon, varphi, chi, psi/Psi, omega/Omega, eta, zeta, kappa, epsilon, varepsilon, ell
    • Note: Some uppercase like Alpha, Beta, Epsilon, … do not exist in LaTeX; avoid those.
  • Functions/operators: sin, cos, tan, cot, csc, sec, ln, log, exp, inf, sup, Tr, diag, rank, det, dim, ker, Im, Re, dom, arg, min, max, sgn, OPT, land, lor, perp, int, star
  • Spacing: quad/qquad (pattern “q?quad”)
• Also available: semicolon aliases from your overlay: ;a, ;b, ;g, ;G, … ;vt, ;vp, ;o, ;O, etc. (all autosnippets)

Postfix wrappers (attach a short marker after a token)

• Overlay (tokens can be words/macros ending with }):
  • tokenbar → \overline{token}
  • tokentd → \widetilde{token}
  • tokenht → \hat{token}
  • tokenbf → \mathbf{token}
  • tokenbm → \bm{token} (needs bm)
  • token,. or token., → \vec{token}
  • \ll (any double letter) → \mathbb{l}
  • \bXYn → X_{Y+n} (single letters, n digit)
• New pack (no-backslash word wrappers):
  • xbar → \overline{x}
  • xund → \underline{x}
  • xdot → \dot{x}
  • xhat → \hat{x}
  • xora → \overrightarrow{x}
  • xola → \overleftarrow{x}

Quick sequences and sets

Trigger	Expands to	Mode	Auto?	Notes
1..n	x_1, \dots, x_n	Math	Yes	Overlay; x editable
rij	(x_n)_{n \in \N}	Math	No	New pack
nnn	\bigcap_{i \in I} …	Math	No	New pack
uuu	\bigcup_{i \in I} …	Math	No	New pack
UU	\cup	Math	No	New pack
Nn	\cap	Math	No	New pack

Blackboard, calligraphic, etc.

Trigger	Expands to	Mode	Auto?	Notes
RR/QQ/ZZ/NN/DD/HH	\mathbb{R}/…	Math	No	New pack
lll	\ell	Math	No	New pack
R0+	\mathbb{R}_0^+	Math	No	New pack
mcal	\mathcal{…}	Math	No	New pack

Arrows and maps

Trigger	Expands to	Mode	Auto?	Notes
!>	\mapsto	Math	No	Overlay
-->	\longrightarrow	Math	No	New pack
ora/ola wrappers	over/left arrows	Math	No	New pack
fun	f : X \R \to \R : …	Math	No	New pack
map	${1:f} \colon ${2:X} \longrightarrow ${3:Y} …	Math	No	Custom; quick mapping skeleton
([%a][%w']*):([%w\%^{}]+)%-%->([%w\%^{}]+)	f \colon X \longrightarrow Y	Math	Yes	Custom; type f:X-->Y
([%a][%w']*):([%w\%^{}]+)%->([%w\%^{}]+)	f \colon X \to Y	Math	Yes	Custom; type f:X->Y

Misc

Trigger	Expands to	Mode	Auto?	Notes
floor	\left\lfloor … \right\rfloor	Math	No	New pack
ceil	\left\lceil … \right\rceil	Math	No	Both
<> (diamond)	\diamond	Math	No	New pack
<!	\triangleleft	Math	No	New pack
SI	\SI{…}{…}	Math	No	New pack (siunitx)
compl	^{c}	Math	No	New pack
conj	\overline{…}	Math	No	New pack

Your custom file

Trigger	Expands to	Mode	Auto?	Notes
ddt	\frac{\mathrm{d}}{\mathrm{d}t}	Math	No	Custom example; NoBackslash
([f])(x)	f(x)	Math	Yes	Custom; type fx (only f)
([f])'(x)	f'(x)	Math	Yes	Custom; type f'x (only f)
map	${1:f} \colon ${2:X} \longrightarrow ${3:Y} …	Math	No	Custom mapping helper
([%a][%w']*):([%w\%^{}]+)%-%->([%w\%^{}]+)	f \colon X \longrightarrow Y	Math	Yes	Autosnippet; type f:X-->Y
([%a][%w']*):([%w\%^{}]+)%->([%w\%^{}]+)	f \colon X \to Y	Math	Yes	Autosnippet; type f:X->Y

Notes

• Custom macros used by your overlay: \Var, \Cov, \identity, \quotient, \at, \Homomorphism, \Object, \Morphism — make sure these are defined in your preamble.
• Packages: bm for \bm, amsfonts/amssymb for \mathbb, bbm (or similar) for \mathbbm{1}, siunitx for \SI.