5.27.3 Can you answer these questions?

5.27.3.1 Moving luacode to Lua file, accessing glyphs by name

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=502907

I have a package that includes (basically) the following code (provided by a contributor after asking this question on tex.stackoverflow). 
\begin{luacode} 
documentdata = documentdata or { } 
... 
[symbols] [luatex] [unicode] [luaotfload]
 

asked by uli_1973 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=25670 1 vote

5.27.3.2 Filled contour with Matlab data, pgfplots

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=502870

I'm using contour prepared format=matlab to plot a contour, as sugested in pgfplots manual, but I'm not able to combine it with the contour filled option. I've modified the C data from [C,h]=contourf  ... 
[tikz-pgf] [pgfplots] [matlab] [contour]
 

asked by caiovss https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=194008 1 vote

5.27.3.3 Lmodern: LaTeX tries to create tfm files for EC fonts

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=502820

Assume minimal example: 
\documentclass{minimal} 
\usepackage{lmodern} 
\usepackage[T1]{fontenc} 
%\usepackage[french]{babel} 
\begin{document} 
A. 
\end{document} 
When not having  ... 
[lmodern]
 

asked by Hilmar PreuA~\237e https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=50836 1 vote