Support for the LaTeX package `xparse`
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@dpvc is already working on this.
Since Dec 28, 2025.
Feature Request
v3
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Description
Is your feature request related to a problem? Please describe.
LaTeX Workshop uses MathJax to preview equations when hovering above them. However, when the commands, created with \NewDocumentCommand from the package xparse, are used in the equation, it is not rendered properly in the preview.
Describe the solution you'd like
It would make sense to have some support for the commands in xparse, at the very least for \NewDocumentCommand, since it provides one of the best options for LaTeX macros with 2 or more optional parameters; something that is just not possible when using the vanilla \newcommand.
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