added .nvim with configuration

8 files changed, 765 insertions, 0 deletions

diff --git a/nvim/after/ftplugin/tex/folding.vim b/nvim/after/ftplugin/tex/folding.vim
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/nvim/after/ftplugin/tex/folding.vim
diff --git a/nvim/after/ftplugin/tex/mappings.vim b/nvim/after/ftplugin/tex/mappings.vim
new file mode 100644
index 0000000..a8753bb
--- /dev/null
+++ b/nvim/after/ftplugin/tex/mappings.vim
@@ -0,0 +1,50 @@
+inoremap <buffer> (( \left(
+inoremap <buffer> )) \right)
+inoremap <buffer> {{ \left\{
+inoremap <buffer> }} \right\}
+inoremap <buffer> [[ \left[
+inoremap <buffer> ]] \right]
+inoremap <buffer> == \,=\,
+inoremap <buffer> >> \,\geq\,
+inoremap <buffer> << \,\leq\,
+inoremap <buffer> ++ \,+\,
+inoremap <buffer> -- \,-\,
+
+iabbrev <buffer> ga \alpha
+iabbrev <buffer> gb \beta
+iabbrev <buffer> gg \gamma
+iabbrev <buffer> gd \delta
+iabbrev <buffer> ge \varepsilon
+iabbrev <buffer> gz \zeta
+iabbrev <buffer> gh \eta
+iabbrev <buffer> gt \theta
+iabbrev <buffer> gi \iota
+iabbrev <buffer> gk \kappa
+iabbrev <buffer> gl \lambda
+iabbrev <buffer> gm \mu
+iabbrev <buffer> gn \nu
+iabbrev <buffer> gx \xi
+iabbrev <buffer> gr \rho
+iabbrev <buffer> gs \sigma
+iabbrev <buffer> gf \phi
+iabbrev <buffer> gp \pi
+iabbrev <buffer> gw \omega
+iabbrev <buffer> dd \d
+
+function! SynctexShow()
+    let synctex = glob("*.synctex.gz")
+    if strlen(synctex) == 0
+        echom "no synctex file found"
+    else
+        let pdffile = substitute(synctex,"synctex.gz","pdf","")
+        let execline = printf(":!zathura --synctex-forward %d:%d:%s %s", line('.'), col('.'), shellescape(bufname("%")), shellescape(pdffile))
+        exec execline
+    end
+endfunction
+
+nnoremap <buffer> <LocalLeader>a :call SynctexShow()<CR><CR>
+nnoremap <buffer> <LocalLeader>i :Latexmk<CR>
+nnoremap <buffer> <LocalLeader>e :LatexErrors<CR>
+nnoremap <buffer> <LocalLeader>o :LatexView<CR>
+nnoremap <buffer> <LocalLeader>k :LatexmkStop<CR>:LatexmkClean<CR>
+nnoremap <buffer> <LocalLeader>h :split header.sty<CR>
diff --git a/nvim/after/ftplugin/tex/unilatex.vim b/nvim/after/ftplugin/tex/unilatex.vim
new file mode 100644
index 0000000..69358fc
--- /dev/null
+++ b/nvim/after/ftplugin/tex/unilatex.vim
@@ -0,0 +1,675 @@
+function! UTF8toLaTeX()
+    " store cursor position
+    let s:line = line(".")
+    let s:column = col(".")
+    silent %s/α/\\alpha/eg
+    silent %s/β/\\beta/eg
+    silent %s/γ/\\gamma/eg
+    silent %s/δ/\\delta/eg
+    silent %s/∊/\\epsilon/eg
+    silent %s/ε/\\varepsilon/eg
+    silent %s/ζ/\\zeta/eg
+    silent %s/η/\\eta/eg
+    silent %s/θ/\\theta/eg
+    silent %s/ϑ/\\vartheta/eg
+    silent %s/ι/\\iota/eg
+    silent %s/κ/\\kappa/eg
+    silent %s/λ/\\lambda/eg
+    silent %s/μ/\\mu/eg
+    silent %s/ν/\\nu/eg
+    silent %s/ξ/\\xi/eg
+    silent %s/π/\\pi/eg
+    silent %s/ϖ/\\varpi/eg
+    silent %s/ρ/\\rho/eg
+    silent %s/ϱ/\\varrho/eg
+    silent %s/σ/\\sigma/eg
+    silent %s/ς/\\varsigma/eg
+    silent %s/τ/\\tau/eg
+    silent %s/υ/\\upsilon/eg
+    silent %s/φ/\\phi/eg
+    silent %s/ϕ/\\varphi/eg
+    silent %s/χ/\\chi/eg
+    silent %s/ψ/\\psi/eg
+    silent %s/ω/\\omega/eg
+    silent %s/Γ/\\Gamma/eg
+    silent %s/Δ/\\Delta/eg
+    silent %s/Θ/\\Theta/eg
+    silent %s/Λ/\\Lambda/eg
+    silent %s/Ξ/\\Xi/eg
+    silent %s/Π/\\Pi/eg
+    silent %s/Υ/\\Upsilon/eg
+    silent %s/Φ/\\Phi/eg
+    silent %s/Ψ/\\Psi/eg
+    silent %s/Ω/\\Omega/eg
+    silent %s/≤/\\leq/eg
+    silent %s/≪/\\ll/eg
+    silent %s/≺/\\prec/eg
+    silent %s/≼/\\preceq/eg
+    silent %s/⊂/\\subset/eg
+    silent %s/⊆/\\subseteq/eg
+    silent %s/⊏/\\sqsubset/eg
+    silent %s/⊑/\\sqsubseteq/eg
+    silent %s/∈/\\in/eg
+    silent %s/⊢/\\vdash/eg
+    silent %s/∣/\\mid/eg
+    silent %s/⌣/\\smile/eg
+    silent %s/≥/\\geq/eg
+    silent %s/≫/\\gg/eg
+    silent %s/≻/\\succ/eg
+    silent %s/≽/\\succeq/eg
+    silent %s/⊃/\\supset/eg
+    silent %s/⊇/\\supseteq/eg
+    silent %s/⊐/\\sqsupset/eg
+    silent %s/⊒/\\sqsupseteq/eg
+    silent %s/∋/\\ni/eg
+    silent %s/⊣/\\dashv/eg
+    silent %s/∥/\\parallel/eg
+    silent %s/⌢/\\frown/eg
+    silent %s/∉/\\notin/eg
+    silent %s/≡/\\equiv/eg
+    silent %s/≐/\\doteq/eg
+    silent %s/∼/\\sim/eg
+    silent %s/≃/\\simeq/eg
+    silent %s/≈/\\approx/eg
+    silent %s/≅/\\cong/eg
+    silent %s/⋈/\\Join/eg
+    silent %s/⋈/\\bowtie/eg
+    silent %s/∝/\\propto/eg
+    silent %s/⊨/\\models/eg
+    silent %s/⊥/\\perp/eg
+    silent %s/≍/\\asymp/eg
+    silent %s/≠/\\neq/eg
+    silent %s/±/\\pm/eg
+    silent %s/⋅/\\cdot/eg
+    silent %s/×/\\times/eg
+    silent %s/∪/\\cup/eg
+    silent %s/⊔/\\sqcup/eg
+    silent %s/∨/\\vee/eg
+    silent %s/⊕/\\oplus/eg
+    silent %s/⊙/\\odot/eg
+    silent %s/⊗/\\otimes/eg
+    silent %s/△/\\bigtriangleup/eg
+    silent %s/⊲/\\lhd/eg
+    silent %s/⊴/\\unlhd/eg
+    silent %s/∓/\\mp/eg
+    silent %s/÷/\\div/eg
+    silent %s/∖/\\setminus/eg
+    silent %s/∩/\\cap/eg
+    silent %s/⊓/\\sqcap/eg
+    silent %s/∧/\\wedge/eg
+    silent %s/⊖/\\ominus/eg
+    silent %s/⊘/\\oslash/eg
+    silent %s/○/\\bigcirc/eg
+    silent %s/▽/\\bigtriangledown/eg
+    silent %s/⊳/\\rhd/eg
+    silent %s/⊵/\\unrhd/eg
+    silent %s/◁/\\triangleleft/eg
+    silent %s/▷/\\triangleright/eg
+    silent %s/⋆/\\star/eg
+    silent %s/∗/\\ast/eg
+    silent %s/∘/\\circ/eg
+    silent %s/∙/\\bullet/eg
+    silent %s/⋄/\\diamond/eg
+    silent %s/⊎/\\uplus/eg
+    silent %s/†/\\dagger/eg
+    silent %s/‡/\\ddagger/eg
+    silent %s/≀/\\wr/eg
+    silent %s/∑/\\sum/eg
+    silent %s/∏/\\prod/eg
+    silent %s/∐/\\coprod/eg
+    silent %s/∫/\\int/eg
+    silent %s/⋃/\\bigcup/eg
+    silent %s/⋂/\\bigcap/eg
+    silent %s/⊔/\\bigsqcup/eg
+    silent %s/∮/\\oint/eg
+    silent %s/⋁/\\bigvee/eg
+    silent %s/⋀/\\bigwedge/eg
+    silent %s/⊕/\\bigoplus/eg
+    silent %s/⊗/\\bigotimes/eg
+    silent %s/⊙/\\bigodot/eg
+    silent %s/⊎/\\biguplus/eg
+    silent %s/←/\\leftarrow/eg
+    silent %s/→/\\rightarrow/eg
+    silent %s/↔/\\leftrightarrow/eg
+    silent %s/⇐/\\Leftarrow/eg
+    silent %s/⇒/\\Rightarrow/eg
+    silent %s/⇔/\\Leftrightarrow/eg
+    silent %s/↦/\\mapsto/eg
+    silent %s/↩/\\hookleftarrow/eg
+    silent %s/↼/\\leftharpoonup/eg
+    silent %s/↽/\\leftharpoondown/eg
+    silent %s/↪/\\hookrightarrow/eg
+    silent %s/⇀/\\rightharpoonup/eg
+    silent %s/⇁/\\rightharpoondown/eg
+    silent %s/←/\\longleftarrow/eg
+    silent %s/→/\\longrightarrow/eg
+    silent %s/↔/\\longleftrightarrow/eg
+    silent %s/⇐/\\Longleftarrow/eg
+    silent %s/⇒/\\Longrightarrow/eg
+    silent %s/⇔/\\Longleftrightarrow/eg
+    silent %s/⇖/\\longmapsto/eg
+    silent %s/↑/\\uparrow/eg
+    silent %s/↓/\\downarrow/eg
+    silent %s/↕/\\updownarrow/eg
+    silent %s/⇑/\\Uparrow/eg
+    silent %s/⇓/\\Downarrow/eg
+    silent %s/⇕/\\Updownarrow/eg
+    silent %s/↗/\\nearrow/eg
+    silent %s/↘/\\searrow/eg
+    silent %s/↙/\\swarrow/eg
+    silent %s/↖/\\nwarrow/eg
+    silent %s/↝/\\leadsto/eg
+    silent %s/…/\\dots/eg
+    silent %s/⋯/\\cdots/eg
+    silent %s/⋮/\\vdots/eg
+    silent %s/⋱/\\ddots/eg
+    silent %s/ℏ/\\hbar/eg
+    silent %s/ℓ/\\ell/eg
+    silent %s/ℜ/\\Re/eg
+    silent %s/ℑ/\\Im/eg
+    silent %s/א/\\aleph/eg
+    silent %s/℘/\\wp/eg
+    silent %s/∀/\\forall/eg
+    silent %s/∃/\\exists/eg
+    silent %s/℧/\\mho/eg
+    silent %s/∂/\\partial/eg
+    silent %s/′/\\prime/eg
+    silent %s/∅/\\emptyset/eg
+    silent %s/∞/\\infty/eg
+    silent %s/∇/\\nabla/eg
+    silent %s/△/\\triangle/eg
+    silent %s/□/\\Box/eg
+    silent %s/◇/\\Diamond/eg
+    silent %s/⊥/\\bot/eg
+    silent %s/⊤/\\top/eg
+    silent %s/∠/\\angle/eg
+    silent %s/√/\\surd/eg
+    silent %s/♢/\\diamondsuit/eg
+    silent %s/♡/\\heartsuit/eg
+    silent %s/♣/\\clubsuit/eg
+    silent %s/♠/\\spadesuit/eg
+    silent %s/¬/\\neg/eg
+    silent %s/♭/\\flat/eg
+    silent %s/♮/\\natural/eg
+    silent %s/♯/\\sharp/eg
+    silent %s/Ϝ/\\digamma/eg
+    silent %s/ϰ/\\varkappa/eg
+    silent %s/ב/\\beth/eg
+    silent %s/ד/\\daleth/eg
+    silent %s/ג/\\gimel/eg
+    silent %s/⋖/\\lessdot/eg
+    silent %s/≤/\\leqslant/eg
+    silent %s/≦/\\leqq/eg
+    silent %s/⋘/\\lll/eg
+    silent %s/≲/\\lesssim/eg
+    silent %s/≶/\\lessgtr/eg
+    silent %s/⋚/\\lesseqgtr/eg
+    silent %s/≼/\\preccurlyeq/eg
+    silent %s/⋞/\\curlyeqprec/eg
+    silent %s/≾/\\precsim/eg
+    silent %s/⋐/\\Subset/eg
+    silent %s/⊏/\\sqsubset/eg
+    silent %s/∴/\\therefore/eg
+    silent %s/⌣/\\smallsmile/eg
+    silent %s/⊲/\\vartriangleleft/eg
+    silent %s/⊴/\\trianglelefteq/eg
+    silent %s/⋗/\\gtrdot/eg
+    silent %s/≧/\\geqq/eg
+    silent %s/⋙/\\ggg/eg
+    silent %s/≳/\\gtrsim/eg
+    silent %s/≷/\\gtrless/eg
+    silent %s/⋛/\\gtreqless/eg
+    silent %s/≽/\\succcurlyeq/eg
+    silent %s/⋟/\\curlyeqsucc/eg
+    silent %s/≿/\\succsim/eg
+    silent %s/⋑/\\Supset/eg
+    silent %s/⊐/\\sqsupset/eg
+    silent %s/∵/\\because/eg
+    silent %s/∥/\\shortparallel/eg
+    silent %s/⌢/\\smallfrown/eg
+    silent %s/⊳/\\vartriangleright/eg
+    silent %s/⊵/\\trianglerighteq/eg
+    silent %s/≑/\\doteqdot/eg
+    silent %s/≓/\\risingdotseq/eg
+    silent %s/≒/\\fallingdotseq/eg
+    silent %s/≖/\\eqcirc/eg
+    silent %s/≗/\\circeq/eg
+    silent %s/≜/\\triangleq/eg
+    silent %s/≏/\\bumpeq/eg
+    silent %s/≎/\\Bumpeq/eg
+    silent %s/∼/\\thicksim/eg
+    silent %s/≈/\\thickapprox/eg
+    silent %s/≊/\\approxeq/eg
+    silent %s/∽/\\backsim/eg
+    silent %s/⊨/\\vDash/eg
+    silent %s/⊩/\\Vdash/eg
+    silent %s/⊪/\\Vvdash/eg
+    silent %s/∍/\\backepsilon/eg
+    silent %s/∝/\\varpropto/eg
+    silent %s/≬/\\between/eg
+    silent %s/⋔/\\pitchfork/eg
+    silent %s/◀/\\blacktriangleleft/eg
+    silent %s/▷/\\blacktriangleright/eg
+    silent %s/⇠/\\dashleftarrow/eg
+    silent %s/⇇/\\leftleftarrows/eg
+    silent %s/⇆/\\leftrightarrows/eg
+    silent %s/⇚/\\Lleftarrow/eg
+    silent %s/↞/\\twoheadleftarrow/eg
+    silent %s/↢/\\leftarrowtail/eg
+    silent %s/⇋/\\leftrightharpoons/eg
+    silent %s/↰/\\Lsh/eg
+    silent %s/↫/\\looparrowleft/eg
+    silent %s/↶/\\curvearrowleft/eg
+    silent %s/↺/\\circlearrowleft/eg
+    silent %s/⇢/\\dashrightarrow/eg
+    silent %s/⇉/\\rightrightarrows/eg
+    silent %s/⇄/\\rightleftarrows/eg
+    silent %s/⇛/\\Rrightarrow/eg
+    silent %s/↠/\\twoheadrightarrow/eg
+    silent %s/↣/\\rightarrowtail/eg
+    silent %s/⇌/\\rightleftharpoons/eg
+    silent %s/↱/\\Rsh/eg
+    silent %s/↬/\\looparrowright/eg
+    silent %s/↷/\\curvearrowright/eg
+    silent %s/↻/\\circlearrowright/eg
+    silent %s/⊸/\\multimap/eg
+    silent %s/⇈/\\upuparrows/eg
+    silent %s/⇊/\\downdownarrows/eg
+    silent %s/↿/\\upharpoonleft/eg
+    silent %s/↾/\\upharpoonright/eg
+    silent %s/⇃/\\downharpoonleft/eg
+    silent %s/⇂/\\downharpoonright/eg
+    silent %s/⇝/\\rightsquigarrow/eg
+    silent %s/↭/\\leftrightsquigarrow/eg
+    silent %s/∔/\\dotplus/eg
+    silent %s/⋉/\\ltimes/eg
+    silent %s/⋓/\\Cup/eg
+    silent %s/⊻/\\veebar/eg
+    silent %s/⊞/\\boxplus/eg
+    silent %s/⊠/\\boxtimes/eg
+    silent %s/⋋/\\leftthreetimes/eg
+    silent %s/⋎/\\curlyvee/eg
+    silent %s/⋅/\\centerdot/eg
+    silent %s/⋈/\\rtimes/eg
+    silent %s/⋒/\\Cap/eg
+    silent %s/⊼/\\barwedge/eg
+    silent %s/⊟/\\boxminus/eg
+    silent %s/⊡/\\boxdot/eg
+    silent %s/⋌/\\rightthreetimes/eg
+    silent %s/⋏/\\curlywedge/eg
+    silent %s/⊺/\\intercal/eg
+    silent %s/⋇/\\divideontimes/eg
+    silent %s/∖/\\smallsetminus/eg
+    silent %s/⊝/\\circleddash/eg
+    silent %s/⊚/\\circledcirc/eg
+    silent %s/⊛/\\circledast/eg
+    silent %s/ℏ/\\hbar/eg
+    silent %s/ℏ/\\hslash/eg
+    silent %s/□/\\square/eg
+    silent %s/■/\\blacksquare/eg
+    silent %s/Ⓢ/\\circledS/eg
+    silent %s/△/\\vartriangle/eg
+    silent %s/▲/\\blacktriangle/eg
+    silent %s/∁/\\complement/eg
+    silent %s/▽/\\triangledown/eg
+    silent %s/▼/\\blacktriangledown/eg
+    silent %s/◊/\\lozenge/eg
+    silent %s/◆/\\blacklozenge/eg
+    silent %s/★/\\bigstar/eg
+    silent %s/∠/\\angle/eg
+    silent %s/∡/\\measuredangle/eg
+    silent %s/∢/\\sphericalangle/eg
+    silent %s/‵/\\backprime/eg
+    silent %s/∄/\\nexists/eg
+    silent %s/Ⅎ/\\Finv/eg
+    silent %s/∅/\\varnothing/eg
+    silent %s/ð/\\eth/eg
+    silent %s/℧/\\mho/eg
+
+    call cursor(s:line,s:column)
+endfunction
+
+function! LaTeXtoUTF8()
+    let s:line = line(".")
+    let s:column = col(".")
+
+    let s:oldencoding = &l:fileencoding
+    set fileencoding=utf-8
+
+    " convert latex commands to unicode
+    silent %s/\\alpha\>/α/eg
+    silent %s/\\beta\>/β/eg
+    silent %s/\\gamma\>/γ/eg
+    silent %s/\\delta\>/δ/eg
+    silent %s/\\epsilon\>/∊/eg
+    silent %s/\\varepsilon\>/ε/eg
+    silent %s/\\zeta\>/ζ/eg
+    silent %s/\\eta\>/η/eg
+    silent %s/\\theta\>/θ/eg
+    silent %s/\\vartheta\>/ϑ/eg
+    silent %s/\\iota\>/ι/eg
+    silent %s/\\kappa\>/κ/eg
+    silent %s/\\lambda\>/λ/eg
+    silent %s/\\mu\>/μ/eg
+    silent %s/\\nu\>/ν/eg
+    silent %s/\\xi\>/ξ/eg
+    silent %s/\\pi\>/π/eg
+    silent %s/\\varpi\>/ϖ/eg
+    silent %s/\\rho\>/ρ/eg
+    silent %s/\\varrho\>/ϱ/eg
+    silent %s/\\sigma\>/σ/eg
+    silent %s/\\varsigma\>/ς/eg
+    silent %s/\\tau\>/τ/eg
+    silent %s/\\upsilon\>/υ/eg
+    silent %s/\\phi\>/φ/eg
+    silent %s/\\varphi\>/ϕ/eg
+    silent %s/\\chi\>/χ/eg
+    silent %s/\\psi\>/ψ/eg
+    silent %s/\\omega\>/ω/eg
+    silent %s/\\Gamma\>/Γ/eg
+    silent %s/\\Delta\>/Δ/eg
+    silent %s/\\Theta\>/Θ/eg
+    silent %s/\\Lambda\>/Λ/eg
+    silent %s/\\Xi\>/Ξ/eg
+    silent %s/\\Pi\>/Π/eg
+    silent %s/\\Upsilon\>/Υ/eg
+    silent %s/\\Phi\>/Φ/eg
+    silent %s/\\Psi\>/Ψ/eg
+    silent %s/\\Omega\>/Ω/eg
+    silent %s/\\leq\>/≤/eg
+    silent %s/\\ll\>/≪/eg
+    silent %s/\\prec\>/≺/eg
+    silent %s/\\preceq\>/≼/eg
+    silent %s/\\subset\>/⊂/eg
+    silent %s/\\subseteq\>/⊆/eg
+    silent %s/\\sqsubset\>/⊏/eg
+    silent %s/\\sqsubseteq\>/⊑/eg
+    silent %s/\\in\>/∈/eg
+    silent %s/\\vdash\>/⊢/eg
+    silent %s/\\mid\>/∣/eg
+    silent %s/\\smile\>/⌣/eg
+    silent %s/\\geq\>/≥/eg
+    silent %s/\\gg\>/≫/eg
+    silent %s/\\succ\>/≻/eg
+    silent %s/\\succeq\>/≽/eg
+    silent %s/\\supset\>/⊃/eg
+    silent %s/\\supseteq\>/⊇/eg
+    silent %s/\\sqsupset\>/⊐/eg
+    silent %s/\\sqsupseteq\>/⊒/eg
+    silent %s/\\ni\>/∋/eg
+    silent %s/\\dashv\>/⊣/eg
+    silent %s/\\parallel\>/∥/eg
+    silent %s/\\frown\>/⌢/eg
+    silent %s/\\notin\>/∉/eg
+    silent %s/\\equiv\>/≡/eg
+    silent %s/\\doteq\>/≐/eg
+    silent %s/\\sim\>/∼/eg
+    silent %s/\\simeq\>/≃/eg
+    silent %s/\\approx\>/≈/eg
+    silent %s/\\cong\>/≅/eg
+    silent %s/\\Join\>/⋈/eg
+    silent %s/\\bowtie\>/⋈/eg
+    silent %s/\\propto\>/∝/eg
+    silent %s/\\models\>/⊨/eg
+    silent %s/\\perp\>/⊥/eg
+    silent %s/\\asymp\>/≍/eg
+    silent %s/\\neq\>/≠/eg
+    silent %s/\\pm\>/±/eg
+    silent %s/\\cdot\>/⋅/eg
+    silent %s/\\times\>/×/eg
+    silent %s/\\cup\>/∪/eg
+    silent %s/\\sqcup\>/⊔/eg
+    silent %s/\\vee\>/∨/eg
+    silent %s/\\oplus\>/⊕/eg
+    silent %s/\\odot\>/⊙/eg
+    silent %s/\\otimes\>/⊗/eg
+    silent %s/\\bigtriangleup\>/△/eg
+    silent %s/\\lhd\>/⊲/eg
+    silent %s/\\unlhd\>/⊴/eg
+    silent %s/\\mp\>/∓/eg
+    silent %s/\\div\>/÷/eg
+    silent %s/\\setminus\>/∖/eg
+    silent %s/\\cap\>/∩/eg
+    silent %s/\\sqcap\>/⊓/eg
+    silent %s/\\wedge\>/∧/eg
+    silent %s/\\ominus\>/⊖/eg
+    silent %s/\\oslash\>/⊘/eg
+    silent %s/\\bigcirc\>/○/eg
+    silent %s/\\bigtriangledown\>/▽/eg
+    silent %s/\\rhd\>/⊳/eg
+    silent %s/\\unrhd\>/⊵/eg
+    silent %s/\\triangleleft\>/◁/eg
+    silent %s/\\triangleright\>/▷/eg
+    silent %s/\\star\>/⋆/eg
+    silent %s/\\ast\>/∗/eg
+    silent %s/\\circ\>/∘/eg
+    silent %s/\\bullet\>/∙/eg
+    silent %s/\\diamond\>/⋄/eg
+    silent %s/\\uplus\>/⊎/eg
+    silent %s/\\dagger\>/†/eg
+    silent %s/\\ddagger\>/‡/eg
+    silent %s/\\wr\>/≀/eg
+    silent %s/\\sum\>/∑/eg
+    silent %s/\\prod\>/∏/eg
+    silent %s/\\coprod\>/∐/eg
+    silent %s/\\int\>/∫/eg
+    silent %s/\\bigcup\>/⋃/eg
+    silent %s/\\bigcap\>/⋂/eg
+    silent %s/\\bigsqcup\>/⊔/eg
+    silent %s/\\oint\>/∮/eg
+    silent %s/\\bigvee\>/⋁/eg
+    silent %s/\\bigwedge\>/⋀/eg
+    silent %s/\\bigoplus\>/⊕/eg
+    silent %s/\\bigotimes\>/⊗/eg
+    silent %s/\\bigodot\>/⊙/eg
+    silent %s/\\biguplus\>/⊎/eg
+    silent %s/\\leftarrow\>/←/eg
+    silent %s/\\rightarrow\>/→/eg
+    silent %s/\\leftrightarrow\>/↔/eg
+    silent %s/\\Leftarrow\>/⇐/eg
+    silent %s/\\Rightarrow\>/⇒/eg
+    silent %s/\\Leftrightarrow\>/⇔/eg
+    silent %s/\\mapsto\>/↦/eg
+    silent %s/\\hookleftarrow\>/↩/eg
+    silent %s/\\leftharpoonup\>/↼/eg
+    silent %s/\\leftharpoondown\>/↽/eg
+    silent %s/\\hookrightarrow\>/↪/eg
+    silent %s/\\rightharpoonup\>/⇀/eg
+    silent %s/\\rightharpoondown\>/⇁/eg
+    silent %s/\\longleftarrow\>/←/eg
+    silent %s/\\longrightarrow\>/→/eg
+    silent %s/\\longleftrightarrow\>/↔/eg
+    silent %s/\\Longleftarrow\>/⇐/eg
+    silent %s/\\Longrightarrow\>/⇒/eg
+    silent %s/\\Longleftrightarrow\>/⇔/eg
+    silent %s/\\longmapsto\>/⇖/eg
+    silent %s/\\uparrow\>/↑/eg
+    silent %s/\\downarrow\>/↓/eg
+    silent %s/\\updownarrow\>/↕/eg
+    silent %s/\\Uparrow\>/⇑/eg
+    silent %s/\\Downarrow\>/⇓/eg
+    silent %s/\\Updownarrow\>/⇕/eg
+    silent %s/\\nearrow\>/↗/eg
+    silent %s/\\searrow\>/↘/eg
+    silent %s/\\swarrow\>/↙/eg
+    silent %s/\\nwarrow\>/↖/eg
+    silent %s/\\leadsto\>/↝/eg
+    silent %s/\\dots\>/…/eg
+    silent %s/\\cdots\>/⋯/eg
+    silent %s/\\vdots\>/⋮/eg
+    silent %s/\\ddots\>/⋱/eg
+    silent %s/\\hbar\>/ℏ/eg
+    silent %s/\\ell\>/ℓ/eg
+    silent %s/\\Re\>/ℜ/eg
+    silent %s/\\Im\>/ℑ/eg
+    silent %s/\\aleph\>/א/eg
+    silent %s/\\wp\>/℘/eg
+    silent %s/\\forall\>/∀/eg
+    silent %s/\\exists\>/∃/eg
+    silent %s/\\mho\>/℧/eg
+    silent %s/\\partial\>/∂/eg
+    silent %s/\\prime\>/′/eg
+    silent %s/\\emptyset\>/∅/eg
+    silent %s/\\infty\>/∞/eg
+    silent %s/\\nabla\>/∇/eg
+    silent %s/\\triangle\>/△/eg
+    silent %s/\\Box\>/□/eg
+    silent %s/\\Diamond\>/◇/eg
+    silent %s/\\bot\>/⊥/eg
+    silent %s/\\top\>/⊤/eg
+    silent %s/\\angle\>/∠/eg
+    silent %s/\\surd\>/√/eg
+    silent %s/\\diamondsuit\>/♢/eg
+    silent %s/\\heartsuit\>/♡/eg
+    silent %s/\\clubsuit\>/♣/eg
+    silent %s/\\spadesuit\>/♠/eg
+    silent %s/\\neg\>/¬/eg
+    silent %s/\\flat\>/♭/eg
+    silent %s/\\natural\>/♮/eg
+    silent %s/\\sharp\>/♯/eg
+    silent %s/\\digamma\>/Ϝ/eg
+    silent %s/\\varkappa\>/ϰ/eg
+    silent %s/\\beth\>/ב/eg
+    silent %s/\\daleth\>/ד/eg
+    silent %s/\\gimel\>/ג/eg
+    silent %s/\\lessdot\>/⋖/eg
+    silent %s/\\leqslant\>/≤/eg
+    silent %s/\\leqq\>/≦/eg
+    silent %s/\\lll\>/⋘/eg
+    silent %s/\\lesssim\>/≲/eg
+    silent %s/\\lessgtr\>/≶/eg
+    silent %s/\\lesseqgtr\>/⋚/eg
+    silent %s/\\preccurlyeq\>/≼/eg
+    silent %s/\\curlyeqprec\>/⋞/eg
+    silent %s/\\precsim\>/≾/eg
+    silent %s/\\Subset\>/⋐/eg
+    silent %s/\\sqsubset\>/⊏/eg
+    silent %s/\\therefore\>/∴/eg
+    silent %s/\\smallsmile\>/⌣/eg
+    silent %s/\\vartriangleleft\>/⊲/eg
+    silent %s/\\trianglelefteq\>/⊴/eg
+    silent %s/\\gtrdot\>/⋗/eg
+    silent %s/\\geqq\>/≧/eg
+    silent %s/\\ggg\>/⋙/eg
+    silent %s/\\gtrsim\>/≳/eg
+    silent %s/\\gtrless\>/≷/eg
+    silent %s/\\gtreqless\>/⋛/eg
+    silent %s/\\succcurlyeq\>/≽/eg
+    silent %s/\\curlyeqsucc\>/⋟/eg
+    silent %s/\\succsim\>/≿/eg
+    silent %s/\\Supset\>/⋑/eg
+    silent %s/\\sqsupset\>/⊐/eg
+    silent %s/\\because\>/∵/eg
+    silent %s/\\shortparallel\>/∥/eg
+    silent %s/\\smallfrown\>/⌢/eg
+    silent %s/\\vartriangleright\>/⊳/eg
+    silent %s/\\trianglerighteq\>/⊵/eg
+    silent %s/\\doteqdot\>/≑/eg
+    silent %s/\\risingdotseq\>/≓/eg
+    silent %s/\\fallingdotseq\>/≒/eg
+    silent %s/\\eqcirc\>/≖/eg
+    silent %s/\\circeq\>/≗/eg
+    silent %s/\\triangleq\>/≜/eg
+    silent %s/\\bumpeq\>/≏/eg
+    silent %s/\\Bumpeq\>/≎/eg
+    silent %s/\\thicksim\>/∼/eg
+    silent %s/\\thickapprox\>/≈/eg
+    silent %s/\\approxeq\>/≊/eg
+    silent %s/\\backsim\>/∽/eg
+    silent %s/\\vDash\>/⊨/eg
+    silent %s/\\Vdash\>/⊩/eg
+    silent %s/\\Vvdash\>/⊪/eg
+    silent %s/\\backepsilon\>/∍/eg
+    silent %s/\\varpropto\>/∝/eg
+    silent %s/\\between\>/≬/eg
+    silent %s/\\pitchfork\>/⋔/eg
+    silent %s/\\blacktriangleleft\>/◀/eg
+    silent %s/\\blacktriangleright\>/▷/eg
+    silent %s/\\dashleftarrow\>/⇠/eg
+    silent %s/\\leftleftarrows\>/⇇/eg
+    silent %s/\\leftrightarrows\>/⇆/eg
+    silent %s/\\Lleftarrow\>/⇚/eg
+    silent %s/\\twoheadleftarrow\>/↞/eg
+    silent %s/\\leftarrowtail\>/↢/eg
+    silent %s/\\leftrightharpoons\>/⇋/eg
+    silent %s/\\Lsh\>/↰/eg
+    silent %s/\\looparrowleft\>/↫/eg
+    silent %s/\\curvearrowleft\>/↶/eg
+    silent %s/\\circlearrowleft\>/↺/eg
+    silent %s/\\dashrightarrow\>/⇢/eg
+    silent %s/\\rightrightarrows\>/⇉/eg
+    silent %s/\\rightleftarrows\>/⇄/eg
+    silent %s/\\Rrightarrow\>/⇛/eg
+    silent %s/\\twoheadrightarrow\>/↠/eg
+    silent %s/\\rightarrowtail\>/↣/eg
+    silent %s/\\rightleftharpoons\>/⇌/eg
+    silent %s/\\Rsh\>/↱/eg
+    silent %s/\\looparrowright\>/↬/eg
+    silent %s/\\curvearrowright\>/↷/eg
+    silent %s/\\circlearrowright\>/↻/eg
+    silent %s/\\multimap\>/⊸/eg
+    silent %s/\\upuparrows\>/⇈/eg
+    silent %s/\\downdownarrows\>/⇊/eg
+    silent %s/\\upharpoonleft\>/↿/eg
+    silent %s/\\upharpoonright\>/↾/eg
+    silent %s/\\downharpoonleft\>/⇃/eg
+    silent %s/\\downharpoonright\>/⇂/eg
+    silent %s/\\rightsquigarrow\>/⇝/eg
+    silent %s/\\leftrightsquigarrow\>/↭/eg
+    silent %s/\\dotplus\>/∔/eg
+    silent %s/\\ltimes\>/⋉/eg
+    silent %s/\\Cup\>/⋓/eg
+    silent %s/\\veebar\>/⊻/eg
+    silent %s/\\boxplus\>/⊞/eg
+    silent %s/\\boxtimes\>/⊠/eg
+    silent %s/\\leftthreetimes\>/⋋/eg
+    silent %s/\\curlyvee\>/⋎/eg
+    silent %s/\\centerdot\>/⋅/eg
+    silent %s/\\rtimes\>/⋈/eg
+    silent %s/\\Cap\>/⋒/eg
+    silent %s/\\barwedge\>/⊼/eg
+    silent %s/\\boxminus\>/⊟/eg
+    silent %s/\\boxdot\>/⊡/eg
+    silent %s/\\rightthreetimes\>/⋌/eg
+    silent %s/\\curlywedge\>/⋏/eg
+    silent %s/\\intercal\>/⊺/eg
+    silent %s/\\divideontimes\>/⋇/eg
+    silent %s/\\smallsetminus\>/∖/eg
+    silent %s/\\circleddash\>/⊝/eg
+    silent %s/\\circledcirc\>/⊚/eg
+    silent %s/\\circledast\>/⊛/eg
+    silent %s/\\hbar\>/ℏ/eg
+    silent %s/\\hslash\>/ℏ/eg
+    silent %s/\\square\>/□/eg
+    silent %s/\\blacksquare\>/■/eg
+    silent %s/\\circledS\>/Ⓢ/eg
+    silent %s/\\vartriangle\>/△/eg
+    silent %s/\\blacktriangle\>/▲/eg
+    silent %s/\\complement\>/∁/eg
+    silent %s/\\triangledown\>/▽/eg
+    silent %s/\\blacktriangledown\>/▼/eg
+    silent %s/\\lozenge\>/◊/eg
+    silent %s/\\blacklozenge\>/◆/eg
+    silent %s/\\bigstar\>/★/eg
+    silent %s/\\angle\>/∠/eg
+    silent %s/\\measuredangle\>/∡/eg
+    silent %s/\\sphericalangle\>/∢/eg
+    silent %s/\\backprime\>/‵/eg
+    silent %s/\\nexists\>/∄/eg
+    silent %s/\\Finv\>/Ⅎ/eg
+    silent %s/\\varnothing\>/∅/eg
+    silent %s/\\eth\>/ð/eg
+    silent %s/\\mho\>/℧/eg
+    call cursor(s:line,s:column)
+endfunction
+
+nnoremap <buffer> <LocalLeader>cl :call UTF8toLaTeX()<CR>
+nnoremap <buffer> <LocalLeader>cu :call LaTeXtoUTF8()<CR>
+command! Convert2Latex :call UTF8toLaTeX()
+command! Convert2UTF8 :call LaTeXtoUTF8()
+
+" augroup LaTeX
+"     au!
+"     autocmd BufWritePre *.tex :Convert2Latex
+"     autocmd BufWritePost *.tex :Convert2UTF8
+" augroup END
diff --git a/nvim/after/ftplugin/vim/folding.vim b/nvim/after/ftplugin/vim/folding.vim
new file mode 100644
index 0000000..1454cbe
--- /dev/null
+++ b/nvim/after/ftplugin/vim/folding.vim
@@ -0,0 +1,25 @@
+function! VimFolds()
+    let thisline = getline(v:lnum)
+    if match(thisline,'^"" ') >= 0
+        return ">1"
+    elseif match(thisline,'^" ') >=0
+        return ">1"
+    else
+        return "="
+    endif
+endfunction
+
+function! VimFoldText()
+    let startline = getline(v:foldstart)
+    if match(startline,'^"" ') >= 0
+        let title = substitute(startline,'^"" \(.*\)$','\1',"")
+        return '# ' . title
+    elseif match(startline,'^" ') >=0
+        let title = substitute(startline,'^" \(.*\)$','\1',"")
+        return '    ## ' .title
+    endif
+endfunction
+
+setlocal foldmethod=expr
+setlocal foldexpr=VimFolds()
+setlocal foldtext=VimFoldText()
diff --git a/nvim/after/syntax/cpp.vim b/nvim/after/syntax/cpp.vim
new file mode 100644
index 0000000..4da741d
--- /dev/null
+++ b/nvim/after/syntax/cpp.vim
@@ -0,0 +1,3 @@
+syntax keyword mPigroup pi
+hi def link mPigroup Todo
+
diff --git a/nvim/after/syntax/cpp.vim~ b/nvim/after/syntax/cpp.vim~
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/nvim/after/syntax/cpp.vim~
diff --git a/nvim/after/syntax/tex.vim b/nvim/after/syntax/tex.vim
new file mode 100644
index 0000000..a40cc30
--- /dev/null
+++ b/nvim/after/syntax/tex.vim
@@ -0,0 +1,6 @@
+syn match texMathSymbol '\\arr\>' contained conceal cchar=←
+syn match texMathSymbol '\\,' contained conceal cchar= 
+syn match texMathSymbol '\\mathcal' contained conceal cchar= 
+syn match texMathSymbol '\\text' contained conceal cchar= 
+syn match texMathSymbol '\\mathbb' contained conceal cchar= 
+syn match texMathSymbol '\\quad' contained conceal cchar=  
diff --git a/nvim/after/syntax/tex.vim~ b/nvim/after/syntax/tex.vim~
new file mode 100644
index 0000000..4e1d112
--- /dev/null
+++ b/nvim/after/syntax/tex.vim~
@@ -0,0 +1,6 @@
+syn match texMathSymbol '\\arr\>' contained conceal cchar=←
+syn match texMathSymbol '\\,' contained conceal cchar= 
+syn match texMathSymbol '\\mathcal' contained conceal cchar= 
+syn match texMathSymbol '\\text' contained conceal cchar= 
+syn match texMathSymbol '\\mathbb' contained conceal cchar= 
+syn match texMathSymbol '\\quad' contained conceal cchar=