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

priority 2
# BEGIN SUPERSCRIPTS AND SUBSCRIPTS
# ------------------------------------------------ #
context "math()"
snippet "([\w]|[\}\)\]\|'])"" "Superscript" rA
`!p snip.rv = match.group(1)`^{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([a-zA-Z]|[\}\)\]\|']):" "Subscript" rA
`!p snip.rv = match.group(1)`_{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([\w]|[\}\)\]\|'])sd" "Text subscript" rA
`!p snip.rv = match.group(1)`_{\mathrm{${1:${VISUAL:}}}}$0
endsnippet

context "math()"
snippet "([\w]|[\}\)\]\|'])'([\w]{1})" "Place the first \w character after the quotation mark in a subscript" rA
`!p snip.rv = match.group(1) + "^{" + match.group(2) + "}"`
endsnippet

context "math()"
snippet "([\w]|[\}\)\]\|']);([\w]{1})" "Place the first \w character after the : in a subscript" rA
`!p snip.rv = match.group(1) + "_{" + match.group(2) + "}"`
endsnippet

context "math()"
snippet "([\w]{1})__" "e.g. expand x__ into x_{1}, x_{2}, x_{3}" rA
`!p snip.rv = match.group(1) + "_{1}, " + match.group(1) + "_{2}, " + match.group(1) + "_{3}"`
endsnippet

snippet "([a-zA-Z]|[\}\)\]\|'])00" "Automatic 0 subscript" rA
`!p snip.rv = match.group(1)`_{0}
endsnippet

context "math()"
snippet "([^a-zA-Z])ee" "e^{} supercript" rA
`!p snip.rv = match.group(1)`e^{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([\w]|[\}\)\]\|'])([-+]{2})" "Automatic +/- subscript" rA
`!p snip.rv = match.group(1) + "_{" + match.group(2)[0] + "}"`
endsnippet

snippet "([\w]|[\}\)\]\|'])\*\*" "Automatic * superscript" rA
`!p snip.rv = match.group(1)`^{*}
endsnippet

snippet "([\w]|[\}\)\]\|'])TT" "Automatic transposed superscript" rA
`!p snip.rv = match.group(1)`^{\top}
endsnippet

context "math()"
snippet "([\w]|[\}\)\]\|'])CC" "Automatic complement superscript" rA
`!p snip.rv = match.group(1)`^{\complement}
endsnippet

# context "math()"
# snippet "([\w]|[\}\)\]\|'])\"" "Access prime with quotation mark, since prime is used for superscript." rA
# `!p snip.rv = match.group(1)`'
# endsnippet
# ----------------------------------------- #
# END SUPERSCRIPTS AND SUBSCRIPTS


# BEGIN SEMANTIC COMMANDS (vec, tilde, etc...)
# --------------------------------------------- #
snippet "(^|[^a-zA-Z])ff" "\frac{}{}" rA
`!p snip.rv = match.group(1)`\frac{${1:${VISUAL:}}}{$2}$0
endsnippet

snippet "(^|[^a-zA-Z])tf" "\tfrac{}{}" rA
`!p snip.rv = match.group(1)`\tfrac{${1:${VISUAL:}}}{$2}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])sa" "\sqrt (with optional arg)" rA
`!p snip.rv = match.group(1)`\sqrt[${1}]{${2:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])sq" "\sqrt (square root)" rA
`!p snip.rv = match.group(1)`\sqrt{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([\W_])vv" "\vec" rA
`!p snip.rv = match.group(1)`\vec{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([\W_])uv" "\uvec" rA
`!p snip.rv = match.group(1)`\uvec{${1:${VISUAL:}}}$0
endsnippet

snippet "([\W_])mt" "\mat{} (for matrices)" rA
`!p snip.rv = match.group(1)`\mat{${1:${VISUAL:}}}$0
endsnippet

snippet "([\W_])tn" "\tensor{}" rA
`!p snip.rv = match.group(1)`\tensor{${1:${VISUAL:}}}$0
endsnippet

snippet "([\W_])wt" "\widetilde" rA
`!p snip.rv = match.group(1)`\widetilde{${1:${VISUAL:}}}$0
endsnippet

snippet "([\W_\\])hh" "\hat" rA
`!p snip.rv = match.group(1)`\hat{${1:${VISUAL:}}}$0
endsnippet

snippet "([\W_\\])bb" "\bar" rA
`!p snip.rv = match.group(1)`\bar{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "ss" "Line segment (assumes a user-defined macro)" A
`!p snip.rv = match.group(1)`\linesegment{${1:${VISUAL:}}}$0
endsnippet

snippet "([^a-zA-Z\\])d" "\dot" r
`!p snip.rv = match.group(1)`\dot{${1:${VISUAL:}}}$0
endsnippet

snippet "([^a-zA-Z\\])dd" "\ddot" r
`!p snip.rv = match.group(1)`\ddot{${1:${VISUAL:}}}$0
endsnippet

snippet "([^a-zA-Z\\])pV" "\pdv{}" rA
`!p snip.rv = match.group(1)`\pdv{${1:${VISUAL:}}}$0
endsnippet

snippet "([^a-zA-Z\\])pvv" "\pdv{}{}" rA
`!p snip.rv = match.group(1)`\pdv{$1}{$2}$0
endsnippet

snippet "([^a-zA-Z\\])ppv" "\pdv[]{}{}" rA
`!p snip.rv = match.group(1)`\pdv[$1]{$2}{$3}$0
endsnippet

snippet "([^a-zA-Z\\])dV" "\dv{}" rA
`!p snip.rv = match.group(1)`\dv{${1:${VISUAL:}}}$0
endsnippet
 
snippet "([^a-zA-Z\\])([dD])vv" "\dv{}{} or \Dv{}{}" rA
`!p snip.rv = match.group(1)`\\`!p snip.rv = match.group(2)`v{$1}{$2}$0
endsnippet

snippet "([^a-zA-Z\\])ddv" "\dv[]{}{}" rA
`!p snip.rv = match.group(1)`\dv[$1]{$2}{$3}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])aa" "\abs{}" rA
`!p snip.rv = match.group(1)`\abs{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])norm" "\norm{}" rA
`!p snip.rv = match.group(1)`\norm{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])ev" "\ev{}" rA
`!p snip.rv = match.group(1)`\ev{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet "([^a-zA-Z\\])ang" "ang{} (Angle)" rA
`!p snip.rv = match.group(1)`\ang{${1:${VISUAL:}}}$0
endsnippet

context "math()"
snippet ann "\annotate{}{} (custom command for annotated stackrel)" A
\annotate{${1:above}}{${2:below}}$0
endsnippet

context "math()"
snippet "([\W_\\])srr" "\stackrel{}{}" rA
`!p snip.rv = match.group(1)`\stackrel{${1:above}}{${2:${VISUAL:below}}}$0
endsnippet
# --------------------------------------------- #
# END SEMANTIC COMMANDS (vec, tilde, etc...)


# BEGIN INTEGRALS
# --------------------------------------------- #
snippet "([^\w\\])intt" "Integral with upper and lower limit" rA
`!p snip.rv = match.group(1)`\int_{$1}^{$2} $0
endsnippet

snippet "([^\w\\])innt" "Integral with symmetric upper and lower limit" rA
`!p snip.rv = match.group(1)`\int_{-$1}^{$1} $0
endsnippet

snippet "([^\w\\])int3" "\iiint" rA
`!p snip.rv = match.group(1)`\iiint
endsnippet

snippet "([^\w\\])int2" "\iint" rA
`!p snip.rv = match.group(1)`\iint
endsnippet
# END INTEGRALS
# --------------------------------------------- #


# BEGIN SUMS
# --------------------------------------------- #
context "math()"
snippet "([^\w\\])sM" "Sum with only lower limit" rA
`!p snip.rv = match.group(1)`\sum_{$1}$0
endsnippet

context "math()"
snippet "([^\w\\])smm" "Sum with upper and lower limit" rA
`!p snip.rv = match.group(1)`\sum_{$1}^{$2}$0
endsnippet

snippet "([^\w\\])smf" "Sum from negative to positive infinity" rA
`!p snip.rv = match.group(1)`\sum_{$1-\infty}^{\infty} $0
endsnippet

context "math()"
snippet "([^\w\\])lsM" "Inline math sum with only lower limit" rA
`!p snip.rv = match.group(1)`\sum \limits_{$1}$0
endsnippet

context "math()"
snippet "([^\w\\])lsmm" "Inline math sum with upper and lower limit" rA
`!p snip.rv = match.group(1)`\sum \limits_{$1}^{$2}$0
endsnippet
# --------------------------------------------- #
# END SUMS

# BEGIN LIMITS
# --------------------------------------------- #
context "math()"
snippet "([^\w\\])lM" "\limits{} with only lower limit" rA
`!p snip.rv = match.group(1)`\limits_{$1}$0
endsnippet

context "math()"
snippet "([^\w\\])lmm" "\limits{}{} with upper and lower limit" rA
`!p snip.rv = match.group(1)`\limits_{$1}{$2}$0
endsnippet
# --------------------------------------------- #
# END LIMITS


# BEGIN STATIC TEXT
# ------------------------------------- #
context "math()"
snippet and "static snippet: qquad-spaced 'and' in equation" A
\qquad \text{and} \qquad $0
endsnippet

context "math()"
snippet where "static snippet: quad-spaced 'where' in equation" A
\quad \text{where } \, $0
endsnippet

context "math()"
snippet else "\text{otherwise}" A
\text{otherwise}
endsnippet
# ------------------------------------- #
# END STATIC TEXT


# BEGIN STATIC MATH SNIPPETS
# ------------------------------------- #
snippet "([\W_])inff" "\infty" rA
`!p snip.rv = match.group(1)`\infty
endsnippet

context "math()"
snippet "([\W_])intf" "Integral from negative to positive infinity" rA
`!p snip.rv = match.group(1)`\int_{-\infty}^{\infty} 
endsnippet

context "math()"
snippet >> "\implies" Ai
\implies 
endsnippet

snippet lra "\leftrightarrow" A
\leftrightarrow 
endsnippet

context "math()"
snippet "([^a-zA-Z0-9\\])df" "\diff" rA
`!p snip.rv = match.group(1)`\diff 
endsnippet

snippet "([^a-zA-Z0-9\\])gd" "\grad" r
`!p snip.rv = match.group(1)`\grad 
endsnippet

snippet "([^a-zA-Z0-9\\])lap" "\laplacian" r
`!p snip.rv = match.group(1)`\laplacian 
endsnippet

snippet "([^a-zA-Z0-9\\])cll" "\curl" rA
`!p snip.rv = match.group(1)`\curl 
endsnippet

snippet "([lcvd]|)dd" "(lcvd)dots (various dots commands in one regex)" rA
\\`!p snip.rv = match.group(1)`dots
endsnippet

snippet ,. "\cdot" iA
\cdot 
endsnippet

snippet xx "\cross" A
\times 
endsnippet

snippet "([^a-zA-Z0-9\\])pt" "\propto" rA
`!p snip.rv = match.group(1)`\propto 
endsnippet

snippet "([^a-zA-Z0-9\\])px" "\approx" rA
`!p snip.rv = match.group(1)`\approx 
endsnippet

snippet "([^a-zA-Z0-9\\])eqq" "\equiv" rA
`!p snip.rv = match.group(1)`\equiv 
endsnippet
# ------------------------------------- #
# END STATIC MATH SNIPPETS


# BEGIN MISC
# --------------------------------------------- #
snippet "(^|[^a-zA-Z])sgg" "\subgrad{} (for cleaner gradient, mostly for ML backprop)" rA
`!p snip.rv = match.group(1)`\subgrad{${1:${VISUAL:}}}$0
endsnippet

snippet "(^|[^a-zA-Z])spp" "\supgrad{} (for cleaner gradient, mostly for ML backprop)" rA
`!p snip.rv = match.group(1)`\supgrad{${1:${VISUAL:}}}{$2}$0
endsnippet

# turns b| into \big |
# turns B| into \Big |
snippet "([\W])([bB])\|" "(bB)ig |_{evaluation}" rA
`!p snip.rv = match.group(1)`\\`!p snip.rv = match.group(2)`ig|_{${1:${VISUAL:}}}$0
endsnippet

snippet qm "\questionmath{} (for coloring math commands to distinguish from colored question text)"
\questionmath{${1:${VISUAL:}}}$0
endsnippet
# --------------------------------------------- #
# END MISC