Support for cases* environment from mathtools package

[cmcho-connect-ust-hk]

Environment

IntelliJ IDEA 2024.2.3 (Ultimate Edition) on Windows and TeXiFy IDEA 0.9.7.

Steps to reproduce

Input the following minimal example in any .tex file:

\documentclass{article}
\usepackage{mathtools} % Package with provides the cases* environment
\begin{document}
	\begin{itemize}
		\item Testing
		\item one
		\item two three
		\item $\begin{cases*}
			 1 & if $p \equiv 1 \pmod 4$ \\
			-1 & if $p \equiv 3 \pmod 4$
		\end{cases*}$.
	\end{itemize}
\end{document}

Expected behavior

No problems should be detected by the plugin.

The second row (after the & character) in the cases* environment should be highlighted in normal LaTeX text style as well.

Actual behavior

Several problems are incorrectly detected, which were the following:

• "DefaultEnvironment name does not match with the name in \end."
• <no math content>, LatexTokenType.&, LatexTokenType.*, [...] or LatexTokenType.\end expected, got '$'
• <no math content> or LatexTokenType.INLINE_MATH_END expected, got '\end'

The text highlighting is also incorrect.

[xchatiii]

Damn... accidentally used my university account.

[xchatiii]

mathtools Documentation 2024/10/24 Section 3.4.3 More cases-like environments:

\begin{cases*} 〈math_column〉 & 〈text_column〉 \end{cases*}

[PHPirates]

Thanks for reporting this, for the record: the second column is a text column only for the starred environments (cases is provided by amsmath but cases* by mathtools), also for dcases*, rcases* and drcases*