Some additions to the TeX input method

* lisp/leim/quail/latin-ltx.el (latin-ltx--define-rules): Add some
rules from Unicode Technical Note 28 "UnicodeMath" v3.1.

lisp/leim/quail/latin-ltx.el

@@ -279,13 +279,17 @@ system, including many technical ones.  Examples:
  ("\\Vdash" ?⊩)
  ("\\Vert" ?‖)
  ("\\Vvdash" ?⊪)
+ ("\\above" ?┴)
  ("\\aleph" ?ℵ)
  ("\\amalg" ?∐)
  ("\\angle" ?∠)
+ ("\\aoint" ?∳)
  ("\\approx" ?≈)
  ("\\approxeq" ?≊)
+ ("\\asmash" ?⬆)
  ("\\ast" ?∗)
  ("\\asymp" ?≍)
+ ("\\atop" ?¦)
  ("\\backcong" ?≌)
  ("\\backepsilon" ?∍)
  ("\\backprime" ?‵)
@@ -294,11 +298,18 @@ system, including many technical ones.  Examples:
  ("\\backslash" ?\\)
  ("\\barwedge" ?⊼)
  ("\\because" ?∵)
+ ("\\begin" ?\〖)
+ ("\\below" ?┬)
  ("\\beth" ?ℶ)
  ("\\between" ?≬)
  ("\\bigcap" ?⋂)
  ("\\bigcirc" ?◯)
  ("\\bigcup" ?⋃)
+ ("\\bigodot" ?⨀)
+ ("\\bigoplus" ?⨁)
+ ("\\bigotimes" ?⨂)
+ ("\\bigsqcup" ?⨆)
+ ("\\biguplus" ?⨄)
  ("\\bigstar" ?★)
  ("\\bigtriangledown" ?▽)
  ("\\bigtriangleup" ?△)
@@ -315,6 +326,7 @@ system, including many technical ones.  Examples:
  ("\\boxminus" ?⊟)
  ("\\boxplus" ?⊞)
  ("\\boxtimes" ?⊠)
+ ("\\bra" ?\⟨)
  ("\\bullet" ?•)
  ("\\bumpeq" ?≏)
  ("\\cap" ?∩)
@@ -331,7 +343,9 @@ system, including many technical ones.  Examples:
  ("\\circledast" ?⊛)
  ("\\circledcirc" ?⊚)
  ("\\circleddash" ?⊝)
+ ("\\close" ?┤)
  ("\\clubsuit" ?♣)
+ ("\\coint" ?∲)
  ("\\coloneq" ?≔)
  ("\\complement" ?∁)
  ("\\cong" ?≅)
@@ -349,8 +363,12 @@ system, including many technical ones.  Examples:
  ("\\dagger" ?†)
  ("\\daleth" ?ℸ)
  ("\\dashv" ?⊣)
+ ("\\Dd" ?ⅅ)
+ ("\\dd" ?ⅆ)
  ("\\ddag" ?‡)
  ("\\ddagger" ?‡)
+ ("\\ddddot" ?⃜)
+ ("\\dddot" ?⃛)
  ("\\ddots" ?⋱)
  ("\\diamond" ?⋄)
  ("\\diamondsuit" ?♢)
@@ -363,8 +381,12 @@ system, including many technical ones.  Examples:
  ("\\downdownarrows" ?⇊)
  ("\\downleftharpoon" ?⇃)
  ("\\downrightharpoon" ?⇂)
+ ("\\dsmash" ?⬇)
+ ("\\ee" ?ⅇ)
  ("\\ell" ?ℓ)
  ("\\emptyset" ?∅)
+ ("\\end" ?\〗)
+ ("\\eqarray" ?█)
  ("\\eqcirc" ?≖)
  ("\\eqcolon" ?≕)
  ("\\eqslantgtr" ?⋝)
@@ -414,16 +436,25 @@ system, including many technical ones.  Examples:
  ("\\heartsuit" ?♥)
  ("\\hookleftarrow" ?↩)
  ("\\hookrightarrow" ?↪)
+ ("\\hphantom" ?⬄)
+ ("\\hsmash" ?⬌)
  ("\\iff" ?⇔)
+ ("\\ii" ?ⅈ)
+ ("\\iiiint" ?⨌)
+ ("\\iiint" ?∭)
+ ("\\iint" ?∬)
  ("\\imath" ?ı)
  ("\\in" ?∈)
  ("\\infty" ?∞)
  ("\\int" ?∫)
  ("\\intercal" ?⊺)
+ ("\\jj" ?ⅉ)
+ ("\\jmath" ?ȷ)
  ("\\langle" ?⟨) ;; Was ?〈, see bug#12948.
  ("\\lbrace" ?{)
  ("\\lbrack" ?\[)
  ("\\lceil" ?⌈)
+ ("\\ldiv" ?∕)
  ("\\ldots" ?…)
  ("\\le" ?≤)
  ("\\leadsto" ?↝)
@@ -529,16 +560,25 @@ system, including many technical ones.  Examples:
  ("\\nvdash" ?⊬)
  ("\\nwarrow" ?↖)
  ("\\odot" ?⊙)
+ ("\\oiiint" ?∰)
+ ("\\oiint" ?∯)
  ("\\oint" ?∮)
  ("\\ominus" ?⊖)
  ("\\oplus" ?⊕)
  ("\\oslash" ?⊘)
  ("\\otimes" ?⊗)
+ ("\\overbrace" ?⏞)
+ ("\\overparen" ?⏜)
  ("\\par" ?
)
  ("\\parallel" ?∥)
  ("\\partial" ?∂)
  ("\\perp" ?⊥)
+ ("\\phantom" ?⟡)
  ("\\pitchfork" ?⋔)
+ ("\\pppprime" ?⁗)
+ ("\\ppprime" ?‴)
+ ("\\pprime" ?″)
+ ("\\prcue" ?≼)
  ("\\prec" ?≺)
  ("\\precapprox" ?≾)
  ("\\preceq" ?≼)
@@ -548,12 +588,16 @@ system, including many technical ones.  Examples:
  ("\\prime" ?′)
  ("\\prod" ?∏)
  ("\\propto" ?∝)
+ ("\\qdrt" ?∜)
  ("\\qed" ?∎)
  ("\\quad" ? )
  ("\\rangle" ?\⟩) ;; Was ?〉, see bug#12948.
+ ("\\ratio" ?∶)
  ("\\rbrace" ?})
  ("\\rbrack" ?\])
  ("\\rceil" ?⌉)
+ ("\\rddots" ?⋰)
+ ("\\rect" ?▭)
  ("\\rfloor" ?⌋)
  ("\\rightarrow" ?→)
  ("\\rightarrowtail" ?↣)
@@ -565,6 +609,8 @@ system, including many technical ones.  Examples:
  ("\\rightrightarrows" ?⇉)
  ("\\rightthreetimes" ?⋌)
  ("\\risingdotseq" ?≓)
+ ("\\rrect" ?▢)
+ ("\\sdiv" ?⁄)
  ("\\rtimes" ?⋊)
  ("\\sbs" ?﹨)
  ("\\searrow" ?↘)
@@ -577,6 +623,7 @@ system, including many technical ones.  Examples:
  ("\\smallamalg" ?∐)
  ("\\smallsetminus" ?∖)
  ("\\smallsmile" ?⌣)
+ ("\\smash" ?⬍)
  ("\\smile" ?⌣)
  ("\\spadesuit" ?♠)
  ("\\sphericalangle" ?∢)
@@ -627,12 +674,16 @@ system, including many technical ones.  Examples:
  ("\\ulcorner" ?⌜)
  ("\\uparrow" ?↑)
  ("\\updownarrow" ?↕)
+ ("\\underbar" ?▁)
+ ("\\underbrace" ?⏟)
+ ("\\underparen" ?⏝)
  ("\\upleftharpoon" ?↿)
  ("\\uplus" ?⊎)
  ("\\uprightharpoon" ?↾)
  ("\\upuparrows" ?⇈)
  ("\\urcorner" ?⌝)
  ("\\u{i}" ?ĭ)
+ ("\\vbar" ?│)
  ("\\vDash" ?⊨)
 
  ((lambda (name char)
@@ -655,6 +706,7 @@ system, including many technical ones.  Examples:
  ("\\vee" ?∨)
  ("\\veebar" ?⊻)
  ("\\vert" ?|)
+ ("\\vphantom" ?⇳)
  ("\\wedge" ?∧)
  ("\\wp" ?℘)
  ("\\wr" ?≀)