mxblocks-tex

Math messages for mxblocks: render a formula with the mxblocks-math program (packages/mxblocks-math/) and build the m.image event that carries it, with MSC2191 markup (data-mx-maths) for clients that render LaTeX and the raw TeX as the plain body.

The renderer contract: mxblocks-math render [--inline] --out PATH.png -, TeX on stdin; exit 0 with one JSON line on stdout ({"mimetype":"image/png","w":W,"h":H,"size":BYTES}, w/h the display size of a 2x PNG), or non-zero with the TeX error on stderr.

# async fn render() -> Result<(), Box<dyn std::error::Error>> {
let r = mxblocks_tex::Renderer::new("mxblocks-math").render(r"e^{i\pi} + 1 = 0", true).await?;
// Upload r.png with your Matrix client, then pass its returned mxc URI.
let mxc = "mxc://example.org/rendered";
let content = mxblocks_tex::math_content(r"e^{i\pi} + 1 = 0", true, "", &r, &mxc, None);
assert_eq!(content["msgtype"], "m.image");
# Ok(())
# }

Apache-2.0.