[v2.7.6] [TeX input] \text inside \operatorname (sometimes) left in text node

[pkra]

This is a weirder one.

$$\operatorname {\text{-}}$$ leaves \text{-} in the mtext node.

But, e.g., $$\operatorname {\text{a}}$$ is fine.

Reproducible with https://cdn.rawgit.com/mathjax/MathJax/2.7.6/test/sample-dynamic-2.html.

[pkra]

This seems to be the problem:

MathJax/unpacked/extensions/TeX/AMSmath.js

Line 233 in d9d2422

op = op.replace(/\*/g,'\\text{*}').replace(/-/g,'\\text{-}');

does not check if * or - are already wrapped in text.

[dpvc]

Yes, it looks like you have identified the culprit. I'll work on a solution.

[dpvc]

I have made a PR to handle this, though it is not perfect.

[dpvc]

In testsuite:

LaTeXToMathML/issue2222.html