Kroton

Kroton math core definitions.

I am too lazy to explain hows and whys.

TODO

• semantic elements;
• support for all sorts of stuff;
• multiline alignment;
• should space be represented at all? should it be just text?
• should allow custom text sizes? w/ or w/o big?
• should allow empty grid cells?
• grid row/colspan?
• regular text?
• should delims only be allowed for expression?
• should have non-textual symbols (bars)?
• should have placeholders at this level?
• browserification;
• API review;
• documentation.