Add a prettify-symbols-alist for (La)TeX

* tex-mode.el (tex-prettify-symbols-alist): New variable holding
an alist suitable as prettify-symbols-alist in (La)TeX modes.

lisp/textmodes/tex-mode.el

@@ -2943,6 +2943,461 @@ There might be text before point."
   (setq-local syntax-propertize-function
 	      (syntax-propertize-rules doctex-syntax-propertize-rules)))
 
+;;; Prettify Symbols Support
+
+(defvar tex-prettify-symbols-alist
+  '( ;; Lowercase Greek letters.
+    ("\\alpha" . ?α)
+    ("\\beta" . ?β)
+    ("\\gamma" . ?γ)
+    ("\\delta" . ?δ)
+    ("\\epsilon" . ?ε)
+    ("\\zeta" . ?ζ)
+    ("\\eta" . ?η)
+    ("\\theta" . ?θ)
+    ("\\iota" . ?ι)
+    ("\\kappa" . ?κ)
+    ("\\lambda" . ?λ)
+    ("\\mu" . ?μ)
+    ("\\nu" . ?ν)
+    ("\\xi" . ?ξ)
+    ;; There is no \omicron becase it looks like a latin o.
+    ("\\pi" . ?π)
+    ("\\rho" . ?ρ)
+    ("\\sigma" . ?σ)
+    ("\\tau" . ?τ)
+    ("\\upsilon" . ?υ)
+    ("\\phi" . ?φ)
+    ("\\chi" . ?χ)
+    ("\\psi" . ?ψ)
+    ("\\omega" . ?ω)
+    ;; Uppercase Greek letters.
+    ("\\Gamma" . ?Γ)
+    ("\\Delta" . ?Δ)
+    ("\\Lambda" . ?Λ)
+    ("\\Phi" . ?Φ)
+    ("\\Pi" . ?Π)
+    ("\\Psi" . ?Ψ)
+    ("\\Sigma" . ?Σ)
+    ("\\Theta" . ?Θ)
+    ("\\Upsilon" . ?Υ)
+    ("\\Xi" . ?Ξ)
+    ("\\Omega" . ?Ω)
+
+    ;; Other math symbols (taken from leim/quail/latin-ltx.el).
+    ("\\Box" . ?□)
+    ("\\Bumpeq" . ?≎)
+    ("\\Cap" . ?⋒)
+    ("\\Cup" . ?⋓)
+    ("\\Diamond" . ?◇)
+    ("\\Downarrow" . ?⇓)
+    ("\\H{o}" . ?ő)
+    ("\\Im" . ?ℑ)
+    ("\\Join" . ?⋈)
+    ("\\Leftarrow" . ?⇐)
+    ("\\Leftrightarrow" . ?⇔)
+    ("\\Ll" . ?⋘)
+    ("\\Lleftarrow" . ?⇚)
+    ("\\Longleftarrow" . ?⇐)
+    ("\\Longleftrightarrow" . ?⇔)
+    ("\\Longrightarrow" . ?⇒)
+    ("\\Lsh" . ?↰)
+    ("\\Re" . ?ℜ)
+    ("\\Rightarrow" . ?⇒)
+    ("\\Rrightarrow" . ?⇛)
+    ("\\Rsh" . ?↱)
+    ("\\Subset" . ?⋐)
+    ("\\Supset" . ?⋑)
+    ("\\Uparrow" . ?⇑)
+    ("\\Updownarrow" . ?⇕)
+    ("\\Vdash" . ?⊩)
+    ("\\Vert" . ?‖)
+    ("\\Vvdash" . ?⊪)
+    ("\\aleph" . ?ℵ)
+    ("\\amalg" . ?∐)
+    ("\\angle" . ?∠)
+    ("\\approx" . ?≈)
+    ("\\approxeq" . ?≊)
+    ("\\ast" . ?∗)
+    ("\\asymp" . ?≍)
+    ("\\backcong" . ?≌)
+    ("\\backepsilon" . ?∍)
+    ("\\backprime" . ?‵)
+    ("\\backsim" . ?∽)
+    ("\\backsimeq" . ?⋍)
+    ("\\backslash" . ?\\)
+    ("\\barwedge" . ?⊼)
+    ("\\because" . ?∵)
+    ("\\beth" . ?ℶ)
+    ("\\between" . ?≬)
+    ("\\bigcap" . ?⋂)
+    ("\\bigcirc" . ?◯)
+    ("\\bigcup" . ?⋃)
+    ("\\bigstar" . ?★)
+    ("\\bigtriangledown" . ?▽)
+    ("\\bigtriangleup" . ?△)
+    ("\\bigvee" . ?⋁)
+    ("\\bigwedge" . ?⋀)
+    ("\\blacklozenge" . ?✦)
+    ("\\blacksquare" . ?▪)
+    ("\\blacktriangle" . ?▴)
+    ("\\blacktriangledown" . ?▾)
+    ("\\blacktriangleleft" . ?◂)
+    ("\\blacktriangleright" . ?▸)
+    ("\\bot" . ?⊥)
+    ("\\bowtie" . ?⋈)
+    ("\\boxminus" . ?⊟)
+    ("\\boxplus" . ?⊞)
+    ("\\boxtimes" . ?⊠)
+    ("\\bullet" . ?•)
+    ("\\bumpeq" . ?≏)
+    ("\\cap" . ?∩)
+    ("\\cdots" . ?⋯)
+    ("\\centerdot" . ?·)
+    ("\\checkmark" . ?✓)
+    ("\\chi" . ?χ)
+    ("\\circ" . ?∘)
+    ("\\circeq" . ?≗)
+    ("\\circlearrowleft" . ?↺)
+    ("\\circlearrowright" . ?↻)
+    ("\\circledR" . ?®)
+    ("\\circledS" . ?Ⓢ)
+    ("\\circledast" . ?⊛)
+    ("\\circledcirc" . ?⊚)
+    ("\\circleddash" . ?⊝)
+    ("\\clubsuit" . ?♣)
+    ("\\coloneq" . ?≔)
+    ("\\complement" . ?∁)
+    ("\\cong" . ?≅)
+    ("\\coprod" . ?∐)
+    ("\\cup" . ?∪)
+    ("\\curlyeqprec" . ?⋞)
+    ("\\curlyeqsucc" . ?⋟)
+    ("\\curlypreceq" . ?≼)
+    ("\\curlyvee" . ?⋎)
+    ("\\curlywedge" . ?⋏)
+    ("\\curvearrowleft" . ?↶)
+    ("\\curvearrowright" . ?↷)
+    ("\\dag" . ?†)
+    ("\\dagger" . ?†)
+    ("\\daleth" . ?ℸ)
+    ("\\dashv" . ?⊣)
+    ("\\ddag" . ?‡)
+    ("\\ddagger" . ?‡)
+    ("\\ddots" . ?⋱)
+    ("\\diamond" . ?⋄)
+    ("\\diamondsuit" . ?♢)
+    ("\\divideontimes" . ?⋇)
+    ("\\doteq" . ?≐)
+    ("\\doteqdot" . ?≑)
+    ("\\dotplus" . ?∔)
+    ("\\dotsquare" . ?⊡)
+    ("\\downarrow" . ?↓)
+    ("\\downdownarrows" . ?⇊)
+    ("\\downleftharpoon" . ?⇃)
+    ("\\downrightharpoon" . ?⇂)
+    ("\\ell" . ?ℓ)
+    ("\\emptyset" . ?∅)
+    ("\\eqcirc" . ?≖)
+    ("\\eqcolon" . ?≕)
+    ("\\eqslantgtr" . ?⋝)
+    ("\\eqslantless" . ?⋜)
+    ("\\equiv" . ?≡)
+    ("\\exists" . ?∃)
+    ("\\fallingdotseq" . ?≒)
+    ("\\flat" . ?♭)
+    ("\\forall" . ?∀)
+    ("\\frown" . ?⌢)
+    ("\\ge" . ?≥)
+    ("\\geq" . ?≥)
+    ("\\geqq" . ?≧)
+    ("\\geqslant" . ?≥)
+    ("\\gets" . ?←)
+    ("\\gg" . ?≫)
+    ("\\ggg" . ?⋙)
+    ("\\gimel" . ?ℷ)
+    ("\\gnapprox" . ?⋧)
+    ("\\gneq" . ?≩)
+    ("\\gneqq" . ?≩)
+    ("\\gnsim" . ?⋧)
+    ("\\gtrapprox" . ?≳)
+    ("\\gtrdot" . ?⋗)
+    ("\\gtreqless" . ?⋛)
+    ("\\gtreqqless" . ?⋛)
+    ("\\gtrless" . ?≷)
+    ("\\gtrsim" . ?≳)
+    ("\\gvertneqq" . ?≩)
+    ("\\hbar" . ?ℏ)
+    ("\\heartsuit" . ?♥)
+    ("\\hookleftarrow" . ?↩)
+    ("\\hookrightarrow" . ?↪)
+    ("\\iff" . ?⇔)
+    ("\\imath" . ?ı)
+    ("\\in" . ?∈)
+    ("\\infty" . ?∞)
+    ("\\int" . ?∫)
+    ("\\intercal" . ?⊺)
+    ("\\langle" . 10216)          ; Literal ?⟨ breaks indentation.
+    ("\\lbrace" . ?{)
+    ("\\lbrack" . ?\[)
+    ("\\lceil" . ?⌈)
+    ("\\ldots" . ?…)
+    ("\\le" . ?≤)
+    ("\\leadsto" . ?↝)
+    ("\\leftarrow" . ?←)
+    ("\\leftarrowtail" . ?↢)
+    ("\\leftharpoondown" . ?↽)
+    ("\\leftharpoonup" . ?↼)
+    ("\\leftleftarrows" . ?⇇)
+    ;; ("\\leftparengtr" ?〈), see bug#12948.
+    ("\\leftrightarrow" . ?↔)
+    ("\\leftrightarrows" . ?⇆)
+    ("\\leftrightharpoons" . ?⇋)
+    ("\\leftrightsquigarrow" . ?↭)
+    ("\\leftthreetimes" . ?⋋)
+    ("\\leq" . ?≤)
+    ("\\leqq" . ?≦)
+    ("\\leqslant" . ?≤)
+    ("\\lessapprox" . ?≲)
+    ("\\lessdot" . ?⋖)
+    ("\\lesseqgtr" . ?⋚)
+    ("\\lesseqqgtr" . ?⋚)
+    ("\\lessgtr" . ?≶)
+    ("\\lesssim" . ?≲)
+    ("\\lfloor" . ?⌊)
+    ("\\lhd" . ?◁)
+    ("\\rhd" . ?▷)
+    ("\\ll" . ?≪)
+    ("\\llcorner" . ?⌞)
+    ("\\lnapprox" . ?⋦)
+    ("\\lneq" . ?≨)
+    ("\\lneqq" . ?≨)
+    ("\\lnsim" . ?⋦)
+    ("\\longleftarrow" . ?←)
+    ("\\longleftrightarrow" . ?↔)
+    ("\\longmapsto" . ?↦)
+    ("\\longrightarrow" . ?→)
+    ("\\looparrowleft" . ?↫)
+    ("\\looparrowright" . ?↬)
+    ("\\lozenge" . ?✧)
+    ("\\lq" . ?‘)
+    ("\\lrcorner" . ?⌟)
+    ("\\ltimes" . ?⋉)
+    ("\\lvertneqq" . ?≨)
+    ("\\maltese" . ?✠)
+    ("\\mapsto" . ?↦)
+    ("\\measuredangle" . ?∡)
+    ("\\mho" . ?℧)
+    ("\\mid" . ?∣)
+    ("\\models" . ?⊧)
+    ("\\mp" . ?∓)
+    ("\\multimap" . ?⊸)
+    ("\\nLeftarrow" . ?⇍)
+    ("\\nLeftrightarrow" . ?⇎)
+    ("\\nRightarrow" . ?⇏)
+    ("\\nVDash" . ?⊯)
+    ("\\nVdash" . ?⊮)
+    ("\\nabla" . ?∇)
+    ("\\napprox" . ?≉)
+    ("\\natural" . ?♮)
+    ("\\ncong" . ?≇)
+    ("\\ne" . ?≠)
+    ("\\nearrow" . ?↗)
+    ("\\neg" . ?¬)
+    ("\\neq" . ?≠)
+    ("\\nequiv" . ?≢)
+    ("\\newline" . ?
)
+    ("\\nexists" . ?∄)
+    ("\\ngeq" . ?≱)
+    ("\\ngeqq" . ?≱)
+    ("\\ngeqslant" . ?≱)
+    ("\\ngtr" . ?≯)
+    ("\\ni" . ?∋)
+    ("\\nleftarrow" . ?↚)
+    ("\\nleftrightarrow" . ?↮)
+    ("\\nleq" . ?≰)
+    ("\\nleqq" . ?≰)
+    ("\\nleqslant" . ?≰)
+    ("\\nless" . ?≮)
+    ("\\nmid" . ?∤)
+    ;; ("\\not" ?̸)              ;FIXME: conflict with "NOT SIGN" ¬.
+    ("\\notin" . ?∉)
+    ("\\nparallel" . ?∦)
+    ("\\nprec" . ?⊀)
+    ("\\npreceq" . ?⋠)
+    ("\\nrightarrow" . ?↛)
+    ("\\nshortmid" . ?∤)
+    ("\\nshortparallel" . ?∦)
+    ("\\nsim" . ?≁)
+    ("\\nsimeq" . ?≄)
+    ("\\nsubset" . ?⊄)
+    ("\\nsubseteq" . ?⊈)
+    ("\\nsubseteqq" . ?⊈)
+    ("\\nsucc" . ?⊁)
+    ("\\nsucceq" . ?⋡)
+    ("\\nsupset" . ?⊅)
+    ("\\nsupseteq" . ?⊉)
+    ("\\nsupseteqq" . ?⊉)
+    ("\\ntriangleleft" . ?⋪)
+    ("\\ntrianglelefteq" . ?⋬)
+    ("\\ntriangleright" . ?⋫)
+    ("\\ntrianglerighteq" . ?⋭)
+    ("\\nvDash" . ?⊭)
+    ("\\nvdash" . ?⊬)
+    ("\\nwarrow" . ?↖)
+    ("\\odot" . ?⊙)
+    ("\\oint" . ?∮)
+    ("\\ominus" . ?⊖)
+    ("\\oplus" . ?⊕)
+    ("\\oslash" . ?⊘)
+    ("\\otimes" . ?⊗)
+    ("\\par" . ?
)
+    ("\\parallel" . ?∥)
+    ("\\partial" . ?∂)
+    ("\\perp" . ?⊥)
+    ("\\pitchfork" . ?⋔)
+    ("\\prec" . ?≺)
+    ("\\precapprox" . ?≾)
+    ("\\preceq" . ?≼)
+    ("\\precnapprox" . ?⋨)
+    ("\\precnsim" . ?⋨)
+    ("\\precsim" . ?≾)
+    ("\\prime" . ?′)
+    ("\\prod" . ?∏)
+    ("\\propto" . ?∝)
+    ("\\qed" . ?∎)
+    ("\\quad" . ? )
+    ("\\rangle" . 10217)            ; Literal ?⟩ breaks indentation.
+    ("\\rbrace" . ?})
+    ("\\rbrack" . ?\])
+    ("\\rceil" . ?⌉)
+    ("\\rfloor" . ?⌋)
+    ("\\rightarrow" . ?→)
+    ("\\rightarrowtail" . ?↣)
+    ("\\rightharpoondown" . ?⇁)
+    ("\\rightharpoonup" . ?⇀)
+    ("\\rightleftarrows" . ?⇄)
+    ("\\rightleftharpoons" . ?⇌)
+    ;; ("\\rightparengtr" ?⦔) ;; Was ?〉, see bug#12948.
+    ("\\rightrightarrows" . ?⇉)
+    ("\\rightthreetimes" . ?⋌)
+    ("\\risingdotseq" . ?≓)
+    ("\\rtimes" . ?⋊)
+    ("\\sbs" . ?﹨)
+    ("\\searrow" . ?↘)
+    ("\\setminus" . ?∖)
+    ("\\sharp" . ?♯)
+    ("\\shortmid" . ?∣)
+    ("\\shortparallel" . ?∥)
+    ("\\sim" . ?∼)
+    ("\\simeq" . ?≃)
+    ("\\smallamalg" . ?∐)
+    ("\\smallsetminus" . ?∖)
+    ("\\smallsmile" . ?⌣)
+    ("\\smile" . ?⌣)
+    ("\\spadesuit" . ?♠)
+    ("\\sphericalangle" . ?∢)
+    ("\\sqcap" . ?⊓)
+    ("\\sqcup" . ?⊔)
+    ("\\sqsubset" . ?⊏)
+    ("\\sqsubseteq" . ?⊑)
+    ("\\sqsupset" . ?⊐)
+    ("\\sqsupseteq" . ?⊒)
+    ("\\square" . ?□)
+    ("\\squigarrowright" . ?⇝)
+    ("\\star" . ?⋆)
+    ("\\straightphi" . ?φ)
+    ("\\subset" . ?⊂)
+    ("\\subseteq" . ?⊆)
+    ("\\subseteqq" . ?⊆)
+    ("\\subsetneq" . ?⊊)
+    ("\\subsetneqq" . ?⊊)
+    ("\\succ" . ?≻)
+    ("\\succapprox" . ?≿)
+    ("\\succcurlyeq" . ?≽)
+    ("\\succeq" . ?≽)
+    ("\\succnapprox" . ?⋩)
+    ("\\succnsim" . ?⋩)
+    ("\\succsim" . ?≿)
+    ("\\sum" . ?∑)
+    ("\\supset" . ?⊃)
+    ("\\supseteq" . ?⊇)
+    ("\\supseteqq" . ?⊇)
+    ("\\supsetneq" . ?⊋)
+    ("\\supsetneqq" . ?⊋)
+    ("\\surd" . ?√)
+    ("\\swarrow" . ?↙)
+    ("\\therefore" . ?∴)
+    ("\\thickapprox" . ?≈)
+    ("\\thicksim" . ?∼)
+    ("\\to" . ?→)
+    ("\\top" . ?⊤)
+    ("\\triangle" . ?▵)
+    ("\\triangledown" . ?▿)
+    ("\\triangleleft" . ?◃)
+    ("\\trianglelefteq" . ?⊴)
+    ("\\triangleq" . ?≜)
+    ("\\triangleright" . ?▹)
+    ("\\trianglerighteq" . ?⊵)
+    ("\\twoheadleftarrow" . ?↞)
+    ("\\twoheadrightarrow" . ?↠)
+    ("\\ulcorner" . ?⌜)
+    ("\\uparrow" . ?↑)
+    ("\\updownarrow" . ?↕)
+    ("\\upleftharpoon" . ?↿)
+    ("\\uplus" . ?⊎)
+    ("\\uprightharpoon" . ?↾)
+    ("\\upuparrows" . ?⇈)
+    ("\\urcorner" . ?⌝)
+    ("\\u{i}" . ?ĭ)
+    ("\\vDash" . ?⊨)
+    ("\\varprime" . ?′)
+    ("\\varpropto" . ?∝)
+    ;; ("\\varsigma" ?ς)		;FIXME: Looks reversed with the non\var.
+    ("\\vartriangleleft" . ?⊲)
+    ("\\vartriangleright" . ?⊳)
+    ("\\vdash" . ?⊢)
+    ("\\vdots" . ?⋮)
+    ("\\vee" . ?∨)
+    ("\\veebar" . ?⊻)
+    ("\\vert" . ?|)
+    ("\\wedge" . ?∧)
+    ("\\wp" . ?℘)
+    ("\\wr" . ?≀)
+    ("\\Bbb{N}" . ?ℕ)			; AMS commands for blackboard bold
+    ("\\Bbb{P}" . ?ℙ)			; Also sometimes \mathbb.
+    ("\\Bbb{R}" . ?ℝ)
+    ("\\Bbb{Z}" . ?ℤ)
+    ("--" . ?–)
+    ("---" . ?—)
+    ("\\ordfeminine" . ?ª)
+    ("\\ordmasculine" . ?º)
+    ("\\lambdabar" . ?ƛ)
+    ("\\celsius" . ?℃)
+    ("\\textmu" . ?µ)
+    ("\\textfractionsolidus" . ?⁄)
+    ("\\textbigcircle" . ?⃝)
+    ("\\textmusicalnote" . ?♪)
+    ("\\textdied" . ?✝)
+    ("\\textcolonmonetary" . ?₡)
+    ("\\textwon" . ?₩)
+    ("\\textnaira" . ?₦)
+    ("\\textpeso" . ?₱)
+    ("\\textlira" . ?₤)
+    ("\\textrecipe" . ?℞)
+    ("\\textinterrobang" . ?‽)
+    ("\\textpertenthousand" . ?‱)
+    ("\\textbaht" . ?฿)
+    ("\\textnumero" . ?№)
+    ("\\textdiscount" . ?⁒)
+    ("\\textestimated" . ?℮)
+    ("\\textopenbullet" . ?◦)
+    ("\\textlquill" . 8261)		; Literal ?⁅ breaks indentation.
+    ("\\textrquill" . 8262)             ; Literal ?⁆ breaks indentation.
+    ("\\textcircledP" . ?℗)
+    ("\\textreferencemark" . ?※))
+  "A `prettify-symbols-alist' usable for (La)TeX modes.")
+
 (run-hooks 'tex-mode-load-hook)
 
 (provide 'tex-mode)