With the co[DEMONETIZED]us🦠 shutting down schools, I have had more time to work on CSharpMath lol 🚀

New additions

1. A massive refactor and rename across CSharpMath (left: 0.3.0, right: 0.4.0)
   • 4x test increase!
     
2. A new Avalonia front end! (Thanks @jp2masa!)
   
3. CSharpMath.Editor improvements
   • Enhanced slash (Divide after an expression should put the previous atom in the numerator #109)
   • A blinking cursor
   • Inner atom editing
   • Large operator with limits editing
     
4. New math mode symbol commands!
   

   CSharpMath/CSharpMath/Atom/LaTeXSettings.cs

   Lines 588 to 818 in de1458a

   	// Table 20: AMS Arrows
   	//{ "dashrightarrow", new Relation("⇢") }, // Glyph not in Latin Modern Math
   	//{ "dashleftarrow", new Relation("⇠") }, // Glyph not in Latin Modern Math
   	{ "leftleftarrows", new Relation("⇇") },
   	{ "leftrightarrows", new Relation("⇆") },
   	{ "Lleftarrow", new Relation("⇚") },
   	{ "twoheadleftarrow", new Relation("↞") },
   	{ "leftarrowtail", new Relation("↢") },
   	{ "looparrowleft", new Relation("↫") },
   	{ "leftrightharpoons", new Relation("⇋") },
   	{ "curvearrowleft", new Relation("↶") },
   	{ "circlearrowleft", new Relation("↺") },
   	{ "Lsh", new Relation("↰") },
   	{ "upuparrows", new Relation("⇈") },
   	{ "upharpoonleft", new Relation("↿") },
   	{ "downharpoonleft", new Relation("⇃") },
   	{ "multimap", new Relation("⊸") },
   	{ "leftrightsquigarrow", new Relation("↭") },
   	{ "rightrightarrows", new Relation("⇉") },
   	{ "rightleftarrows", new Relation("⇄") },
   	// Duplicate entry in LaTeX Symbol list: \rightrightarrows
   	// Duplicate entry in LaTeX Symbol list: \rightleftarrows
   	{ "twoheadrightarrow", new Relation("↠") },
   	{ "rightarrowtail", new Relation("↣") },
   	{ "looparrowright", new Relation("↬") },
   	// \rightleftharpoons defined in Table 10
   	{ "curvearrowright", new Relation("↷") },
   	{ "circlearrowright", new Relation("↻") },
   	{ "Rsh", new Relation("↱") },
   	{ "downdownarrows", new Relation("⇊") },
   	{ "upharpoonright", new Relation("↾") },
   	{ "downharpoonright", new Relation("⇂") },
   	{ "rightsquigarrow", new Relation("⇝") },
   	// Table 21: AMS Negated Arrows
   	{ "nleftarrow", new Relation("↚") },
   	{ "nrightarrow", new Relation("↛") },
   	{ "nLeftarrow", new Relation("⇍") },
   	{ "nRightarrow", new Relation("⇏") },
   	{ "nleftrightarrow", new Relation("↮") },
   	{ "nLeftrightarrow", new Relation("⇎") },
   	// Table 22: AMS Greek
   	// { "digamma", new Variable("ϝ") }, // Glyph not in Latin Modern Math
   	{ "varkappa", new Variable("ϰ") },
   	// Table 23: AMS Hebrew
   	{ "beth", new Ordinary("ℶ") },
   	{ "daleth", new Ordinary("ℸ") },
   	{ "gimel", new Ordinary("ℷ") },
   	// Table 24: AMS Miscellaneous
   	// \hbar defined in Table 11
   	{ "hslash", new Ordinary("ℏ") }, // Same as \hbar
   	{ "vartriangle", new Ordinary("△") }, // ▵ not in Latin Modern Math // ▵ is actually a triangle, not an inverted v as displayed in Visual Studio
   	{ "triangledown", new Ordinary("▽") }, // ▿ not in Latin Modern Math
   	{ "square", Placeholder },
   	{ "lozenge", new Ordinary("◊") },
   	// { "circledS", new Ordinary("Ⓢ") }, // Glyph not in Latin Modern Math
   	// \angle defined in Table 11
   	{ "measuredangle", new Ordinary("∡") },
   	{ "nexists", new Ordinary("∄") },
   	// \mho defined in Table 11
   	// { "Finv", new Ordinary("Ⅎ") }, // Glyph not in Latin Modern Math
   	// { "Game", new Ordinary("⅁") }, // Glyph not in Latin Modern Math
   	{ "Bbbk", new Ordinary("𝐤") },
   	{ "backprime", new Ordinary("‵") },
   	{ "varnothing", new Ordinary("∅") }, // Same as \emptyset
   	{ "blacktriangle", new Ordinary("▲") }, // ▴ not in Latin Modern Math
   	{ "blacktriangledown", new Ordinary("▼") }, // ▾ not in Latin Modern Math
   	{ "blacksquare", new Ordinary("▪") },
   	{ "blacklozenge", new Ordinary("♦") }, // ⧫ not in Latin Modern Math
   	{ "bigstar", new Ordinary("⋆") }, // ★ not in Latin Modern Math
   	{ "sphericalangle", new Ordinary("∢") },
   	{ "complement", new Ordinary("∁") },
   	{ "eth", new Ordinary("ð") }, // Same as \dh
   	{ "diagup", new Ordinary("/") }, // ╱ not in Latin Modern Math
   	{ "diagdown", new Ordinary("\\") }, // ╲ not in Latin Modern Math
   	// Table 25: AMS Commands Defined to Work in Both Math and Text Mode
   	{ "checkmark", new Ordinary("✓") },
   	{ "circledR", new Ordinary("®") },
   	{ "maltese", new Ordinary("✠") },
   	// Table 26: AMS Binary Operators
   	{ "dotplus", new BinaryOperator("∔") },
   	{ "smallsetminus", new BinaryOperator("∖") },
   	{ "Cap", new BinaryOperator("⋒") },
   	{ "Cup", new BinaryOperator("⋓") },
   	{ "barwedge", new BinaryOperator("⌅") },
   	{ "veebar", new BinaryOperator("⊻") },
   	// { "doublebarwedge", new BinaryOperator("⩞") }, //Glyph not in Latin Modern Math
   	{ "boxminus", new BinaryOperator("⊟") },
   	{ "boxtimes", new BinaryOperator("⊠") },
   	{ "boxdot", new BinaryOperator("⊡") },
   	{ "boxplus", new BinaryOperator("⊞") },
   	{ "divideontimes", new BinaryOperator("⋇") },
   	{ "ltimes", new BinaryOperator("⋉") },
   	{ "rtimes", new BinaryOperator("⋊") },
   	{ "leftthreetimes", new BinaryOperator("⋋") },
   	{ "rightthreetimes", new BinaryOperator("⋌") },
   	{ "curlywedge", new BinaryOperator("⋏") },
   	{ "curlyvee", new BinaryOperator("⋎") },
   	{ "circleddash", new BinaryOperator("⊝") },
   	{ "circledast", new BinaryOperator("⊛") },
   	{ "circledcirc", new BinaryOperator("⊚") },
   	{ "centerdot", new BinaryOperator("·") }, // Same as \cdot
   	{ "intercal", new BinaryOperator("⊺") },
   	// Table 27: AMS Binary Relations
   	{ "leqq", new Relation("≦") },
   	{ "leqslant", new Relation("⩽") },
   	{ "eqslantless", new Relation("⪕") },
   	{ "lesssim", new Relation("≲") },
   	{ "lessapprox", new Relation("⪅") },
   	{ "approxeq", new Relation("≊") },
   	{ "lessdot", new Relation("⋖") },
   	{ "lll", new Relation("⋘") },
   	{ "lessgtr", new Relation("≶") },
   	{ "lesseqgtr", new Relation("⋚") },
   	{ "lesseqqgtr", new Relation("⪋") },
   	{ "doteqdot", new Relation("≑") },
   	{ "risingdotseq", new Relation("≓") },
   	{ "fallingdotseq", new Relation("≒") },
   	{ "backsim", new Relation("∽") },
   	{ "backsimeq", new Relation("⋍") },
   	// { "subseteqq", new Relation("⫅") }, // Glyph not in Latin Modern Math
   	{ "Subset", new Relation("⋐") },
   	// \sqsubset is defined in Table 8
   	{ "preccurlyeq", new Relation("≼") },
   	{ "curlyeqprec", new Relation("⋞") },
   	{ "precsim", new Relation("≾") },
   	// { "precapprox", new Relation("⪷") }, // Glyph not in Latin Modern Math
   	{ "vartriangleleft", new Relation("⊲") },
   	{ "trianglelefteq", new Relation("⊴") },
   	{ "vDash", new Relation("⊨") },
   	{ "Vvdash", new Relation("⊪") },
   	{ "smallsmile", new Relation("⌣") }, //Same as \smile
   	{ "smallfrown", new Relation("⌢") }, //Same as \frown
   	{ "bumpeq", new Relation("≏") },
   	{ "Bumpeq", new Relation("≎") },
   	{ "geqq", new Relation("≧") },
   	{ "geqslant", new Relation("⩾") },
   	{ "eqslantgtr", new Relation("⪖") },
   	{ "gtrsim", new Relation("≳") },
   	{ "gtrapprox", new Relation("⪆") },
   	{ "gtrdot", new Relation("⋗") },
   	{ "ggg", new Relation("⋙") },
   	{ "gtrless", new Relation("≷") },
   	{ "gtreqless", new Relation("⋛") },
   	{ "gtreqqless", new Relation("⪌") },
   	{ "eqcirc", new Relation("≖") },
   	{ "circeq", new Relation("≗") },
   	{ "triangleq", new Relation("≜") },
   	{ "thicksim", new Relation("∼") },
   	{ "thickapprox", new Relation("≈") },
   	// { "supseteqq", new Relation("⫆") }, // Glyph not in Latin Modern Math
   	{ "Supset", new Relation("⋑") },
   	// \sqsupset is defined in Table 8
   	{ "succcurlyeq", new Relation("≽") },
   	{ "curlyeqsucc", new Relation("⋟") },
   	{ "succsim", new Relation("≿") },
   	// { "succapprox", new Relation("⪸") }, // Glyph not in Latin Modern Math
   	{ "vartriangleright", new Relation("⊳") },
   	{ "trianglerighteq", new Relation("⊵") },
   	{ "Vdash", new Relation("⊩") },
   	{ "shortmid", new Relation("∣") },
   	{ "shortparallel", new Relation("∥") },
   	{ "between", new Relation("≬") },
   	// { "pitchfork", new Relation("⋔") }, // Glyph not in Latin Modern Math
   	{ "varpropto", new Relation("∝") },
   	{ "blacktriangleleft", new Relation("◀") }, // ◂ not in Latin Modern Math
   	{ "therefore", new Relation("∴") },
   	// { "backepsilon", new Relation("϶") }, // Glyph not in Latin Modern Math
   	{ "blacktriangleright", new Relation("▶") }, // ▸ not in Latin Modern Math
   	{ "because", new Relation("∵") },
   	// Table 28: AMS Negated Binary Relations
   	// U+0338, an overlapping slant, is used as a workaround when Unicode has no matching character
   	{ "nless", new Relation("≮") },
   	{ "nleq", new Relation("≰") },
   	{ "nleqslant", new Relation("⩽\u0338") },
   	{ "nleqq", new Relation("≦\u0338") },
   	{ "lneq", new Relation("⪇") },
   	{ "lneqq", new Relation("≨") },
   	// \lvertneqq -> ≨ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much
   	{ "lnsim", new Relation("⋦") },
   	{ "lnapprox", new Relation("⪉") },
   	{ "nprec", new Relation("⊀") },
   	{ "npreceq", new Relation("⪯\u0338") },
   	{ "precnsim", new Relation("⋨") },
   	// { "precnapprox", new Relation("⪹") }, // Glyph not in Latin Modern Math
   	{ "nsim", new Relation("≁") },
   	{ "nshortmid", new Relation("∤") },
   	{ "nmid", new Relation("∤") },
   	{ "nvdash", new Relation("⊬") },
   	{ "nvDash", new Relation("⊭") },
   	{ "ntriangleleft", new Relation("⋪") },
   	{ "ntrianglelefteq", new Relation("⋬") },
   	{ "nsubseteq", new Relation("⊈") },
   	{ "subsetneq", new Relation("⊊") },
   	// \varsubsetneq -> ⊊ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much
   	// { "subsetneqq", new Relation("⫋") }, // Glyph not in Latin Modern Math
   	// \varsubsetneqq -> ⫋ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much
   	{ "ngtr", new Relation("≯") },
   	{ "ngeq", new Relation("≱") },
   	{ "ngeqslant", new Relation("⩾\u0338") },
   	{ "ngeqq", new Relation("≧\u0338") },
   	{ "gneq", new Relation("⪈") },
   	{ "gneqq", new Relation("≩") },
   	// \gvertneqq -> ≩ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much
   	{ "gnsim", new Relation("⋧") },
   	{ "gnapprox", new Relation("⪊") },
   	{ "nsucc", new Relation("⊁") },
   	{ "nsucceq", new Relation("⪰\u0338") },
   	// Duplicate entry in LaTeX Symbol list: \nsucceq
   	{ "succnsim", new Relation("⋩") },
   	// { "succnapprox", new Relation("⪺") }, // Glyph not in Latin Modern Math
   	{ "ncong", new Relation("≇") },
   	{ "nshortparallel", new Relation("∦") },
   	{ "nparallel", new Relation("∦") },
   	{ "nVdash", new Relation("⊮") }, // Error in LaTeX Symbol list: defined as \nvDash which duplicates above
   	{ "nVDash", new Relation("⊯") },
   	{ "ntriangleright", new Relation("⋫") },
   	{ "ntrianglerighteq", new Relation("⋭") },
   	{ "nsupseteq", new Relation("⊉") },
   	// { "nsupseteqq", new Relation("⫆\u0338") }, // Glyph not in Latin Modern Math
   	{ "supsetneq", new Relation("⊋") },
   	// \varsupsetneq -> ⊋ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much
   	// { "supsetneqq", new Relation("⫌") }, // Glyph not in Latin Modern Math
   	// \varsupsetneqq -> ⫌ + U+FE00 (Variation Selector 1) Not dealing with variation selectors, thank you very much

5. \colorboxes!
   
6. More helpful error messages!
   
7. MathButton and TextButton!
   • Usage:
     

     CSharpMath/CSharpMath.Forms.Example/CSharpMath.Forms.Example/Controls/MathKeyboard.xaml

     Lines 159 to 161 in 824d0df

     	<f:MathButton x:Name="NumbersButton" Grid.Column="1" Command="{e:SwitchToTab Self={Reference this}, Target=Numbers}">
     	<f:MathView LaTeX="123"/>
     	</f:MathButton>

   • This control is Xamarin.Forms only as Avalonia buttons can have arbitrary content including MathViews
8. Built-in Cyrillic support!
   
9. Bugs fixed: Arrows over vectors #37, Round trip conversion leads to invalid LaTeX #59, Some math fonts not showing up in android device #77
10. CI for CSharpMath
    
11. C# 8 nullable reference types enabled in the whole repo
12. Removed dependency on the unmaintained SkiaSharp.Extended (Also fixes Some math fonts not showing up in android device #77)

What's next?

Since the exams, although delayed, are still coming up, I will need to temporarily leave once again. However, there are already a bunch of planned items for the next update once I come back. Stay tuned!

Leftovers from 0.2.0 checklist (see #104)

Stay safe🦺, 💪stay healthy🧼 and 🥚🐇Happy Easter🐣🐰!

Supersedes #104.