\hline is not supported

[an0]

Is it a bug? Is there any alternative way to draw a horizontal line to separate rows in a matrix?

[fred-wang]

TeXZilla's syntax is aligned on itex2MML.

cc'ing @distler

[an0]

So what's the syntax for \hline?

[distler]

I can't speak for Frederic, but itex2MML is concerned with LaTeX equations, not running text (it is envisioned a way to embed equations in some other text markup language -- be it HTML or Markdown or whatever -- that is processed to HTML+MathML).

So it is neither desired nor expected to support LaTeX commands that only appear in running text.

[distler]

Hmm. OK, sorry. I guess there is a use-case in matrices. There is a rowlines attribute on the MathML mtable element which is sorta similar ... but not really.

[fred-wang]

That's the same for TeXZilla. If one wants to process a whole LaTeX document, then something like latexml ( https://dlmf.nist.gov/LaTeXML/ ) is more appropriate.

I'm happy to accept PRs adding support for itex2MML commands that are missing from TeXZilla.