Separate settings for the math environments

[matsievskiysv]

For the different types of math equations different indent stiles are useful. For text with small equations it's ok not to indent at all. For bigger equations it's better to start each brace with new line and indent them. It would be nice to have separate settings block just for the math environments to think about them separately and allow more control over their indent.

Consider this example of the moderately big equation:

\begin{multline}
	\cosh{(\alpha D)} =
	\frac{-(K^E - K^H) \cos{\varphi}}
	{2 Q^2 (K^H + K^E)^2 \sin^2{\varphi} + K^H K^E \cos^2{\varphi}}
        \pm
\\
        \pm
	\left[
		(K^E - K^H)^2 \cos^2{\varphi} +
		4 (Q^2 (K^H + K^E)^2 \sin^2{\varphi}+
		K^E K^H \cos^2{\varphi}) \times
	\right.
\\
        \left.
		\times (1 + Q^2 (K^E + K^H)^2 \sin^2{\varphi})
	\right]^{1/2}
	\left[
		2 Q^2 (K^H + K^E)^2 \sin^2{\varphi}+
		K^H K^E \cos^2{\varphi}
	\right]^{-1}
\end{multline}

[cmhughes]

Have you looked at 'indentRules'? :)

[matsievskiysv]

Thanks, somehow I missed this part.
I still have problem with braces though. How to enable indent between them? I tried to add them to indentRules and to enable UnNamedGroupingBracesBrackets. It didn't help.

[cmhughes]

Could you provide a minimum file, together with what your desired output would be?

[matsievskiysv]

Here is the example:

\documentclass[12pt,a4paper]{report}
\begin{document}
\begin{equation}
\left(
\left[
\left\{
\sqrt{
a+b
}
\right\}
\right]
\right)
\end{equation}
\end{document}

and I would like it to look like this:

\documentclass[12pt,a4paper]{report}
\begin{document}
\begin{equation}
	\left(
		\left[
			\left\{
				\sqrt{
					a+b
				}
			\right\}
		\right]
	\right)
\end{equation}
\end{document}

[cmhughes]

Thanks very much for the follow-up, it's very helpful!

If I use the following yaml file:

seregaxvm.yaml

commandCodeBlocks:
    roundParenthesesAllowed: 0
specialBeginEnd:
    leftRightRound:
        begin: '\\left\('
        end: '\\right\)'
        lookForThis: 1
    leftRightSquare:
        begin: '\\left\['
        end: '\\right\]'
        lookForThis: 1
    leftRightCurly:
        begin: '\\left\\\{'
        end: '\\right\\\}'
        lookForThis: 1

and run

latexindent.pl myfile.tex -l=seregaxvm.yaml

then I receive the following output

\documentclass[12pt,a4paper]{report}
\begin{document}
\begin{equation}
	\left(
		\left[
			\left\{
				\sqrt{
					a+b
				}
			\right\}
			\right]
	\right)
\end{equation}
\end{document}

This is nearly correct, but the problem is that latexindent.pl is picking up \left[...] as a command and is not giving itself the option to find \left[ as a specialBeginEnd.

Given that this behaviour is undesired, I'm going to label this as a bug. I've got a few ideas on how to fix it -- leave it with me, and I'll return to this.

Thanks again for raising it.

[matsievskiysv]

Thank you! This helped a lot!

[cmhughes]

As of e218223 I'd say that this is resolved. It'll be part of the next release, V3.3.

Thanks again for raising this!

[cmhughes]

Thanks again, this is resolved as of #83

[cmhughes]

New version to be uploaded to ctan momentarily.