blahTeX.md

+# blahTeX extension
+
+## References
+
+* [MathJax TeX and LaTeX Support](http://docs.mathjax.org/en/latest/tex.html) ;
+  [TeX Input Jax](https://github.com/mathjax/MathJax/blob/master/unpacked/jax/input/TeX/jax.js) ;
+  [TeX Extensions](https://github.com/mathjax/MathJax/tree/master/unpacked/extensions/TeX)
+
+* [blahTeX Manual and Source](http://gva.noekeon.org/blahtexml/files.html)
+  See "2. What blahtex can handle"
+
+## Macros
+
+\newcommand is implemented in a similar way as in MathJax.
+
+## Environments
+
+All commands are supported.
+
+## Miscellaneous
+
+All commands are supported. \sqrt and \not behave the same way.
+
+## Colour
+
+\color and all color names are supported.
+
+## Text commands
+
+Missing commands: \textsf, \texttt and \emph
+
+## Fractions, binomials
+
+All commands are supported.
+
+## Delimiters
+
+All commands are supported.
+
+## Atom flavours
+
+All commands are supported.
+
+## Limits
+
+Missing command: \displaylimits
+
+## Spacing
+
+All commands are supported.
+
+## Accents
+
+All commands are supported.
+
+## Fonts
+
+Missing command: \bold
+
+## Style
+
+All commands are supported.
+
+## Named operators
+
+Missing command: \operatornamewithlimits
+
+## Escaped characters
+
+All commands are supported.
+
+## Greek letters
+
+All commands are supported.
+
+## Various mathematical symbols in no particular order
+
+Missing commands: \P and \dasharrow.
+
+## Large operators
+
+All commands are supported.
+
+## Symbols only available in text mode
+
+None of these commands are supported.
+
+## Special commands
+
+\strictspacing this is used to force blahTeX strict spacing (that is to output
+MathML spacing elements everywhere to force the rendering looking like
+TeX spacing). That may not be relevant to MathJax, or 
+
+## Unicode symbol translation in math mode
+
+In math mode, blahtex accepts a number of non-ASCII symbols just like their
+command counterpart. These symbols are translated as TEX commands, as
+detailed in the table below.
+
+MathJax does not do that.
+
+## Non-ASCII characters in text mode
+
+Blahtex will serenely transcribe any non-ASCII characters for MathML output,
+as long as they appear in text mode (for example, surrounded by \text{...})
+
+Not if everything here applies to MathJax. BlahTeX has \cyr and \jap commands to
+enter Cyrillic and Japanese.
+
+## Nonstandard commands
+
+Blahtex has a command-line option (--texvc-compatible-commands) that en-
+ables all of the nonstandard commands in texvc’s dialect of TEX;
+
+\R \Reals \reals \Z \N \natnums \Complex \cnums
+\alefsym  \alef   \larr   \rarr    \Larr   \lArr  \Rarr
+\rArr \uarr \uArr \Uarr \darr \dArr \Darr \lrarr
+\harr \Lrarr \Harr \lrArr \hAar \sub \supe \sube
+\infin \lang \rang \real \image \bull \weierp
+\isin \plusmn \Dagger \exist \sect \clubs \spades
+\hearts  \diamonds   \sdot    \ang    \thetasym  \Alpha
+\Beta \Epsilon \Zeta \Eta \Iota \Kappa \Mu \Nu
+\Rho \Tau \Chi \arcsec \arccsc \arccot \sgn
+
+ Also included are the four commands \empty, \and, \or, \part. These
+commands are part of TEX/LATEX/AMS-LATEX, but they do not do what texvc
+thinks they should do! 
+
+=> This is related to Nageh's effort to make commands compatible with texvc
+   (by defining user macro). Should be in the blahTeX extension? Perhaps
+   when a texvc-compatible-commands option is set?