7.45.3 Can you answer these questions?

7.45.3.1 Lualatex pass json file as argument and read inside .tex file

https://tex.stackexchange.com/landing/r/digest?cta=question&id=606082

My project has a main.tex file which reads values from a JSON(data.json) file. I'm successful in reading the values from the JSON file when the file is in the same directory as the project. But this ... 
[compiling] [lua] [arguments] [command-line]
 

asked by 24suns https://tex.stackexchange.com/landing/r/digest?cta=user&id=241841 1 vote

7.45.3.2 LuaTeX, \discretionary, and tcolorbox

https://tex.stackexchange.com/landing/r/digest?cta=question&id=606697

The following MWE renders differently in XeLaTeX and LuaLaTeX: XeLaTeX has a line break, but LuaLaTeX doesn't.  pdfLaTeX produces the same result as XeLaTeX. 
\documentclass{article} 
\usepackage{... 
[luatex] [tcolorbox] [discretionary]
 

asked by ClA~(c)ment https://tex.stackexchange.com/landing/r/digest?cta=user&id=1551 1 vote

7.45.3.3 Error in Array and Cases of Equation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=606296

I am doing the following equation 
\documentclass{article} 
\usepackage{amsmath,amssymb} 
\begin{document} 
\begin{equation} 
\left\{\begin{array}{l} 
x_{i+1}=\left\{\begin{array}{ll} 
\left(4 a ... 
[amsmath]
 

asked by Renjth V Ravi https://tex.stackexchange.com/landing/r/digest?cta=user&id=113612 1 vote

answered by Don Hosek https://tex.stackexchange.com/landing/r/digest?cta=user&id=202780 0 votes