Questions tagged [directlua]
The directlua tag has no usage guidance.
2
votes
1answer
46 views
How can I use math.log10 function with the directlua?
I would like to know how I can use math.log10 function with the directlua, because I always get none from directlua.
Following a minimal example:
%Engine: LuaLaTeX;
%Encoding: UTF-8;
\documentclass[...
3
votes
1answer
38 views
Coerce LuaTeX into outputting a newline character
I encounter a problem when I wish to output a text file
using a \directlua directive. There where I wish a
newline character to be, I run into TeX problems.
My solution is to invoke the dofile ...
4
votes
1answer
54 views
token.set_macro: \directlua vs. luacode*
If I compile the following code with LuaLaTeX I get the word "RED" as output. The call of token.set_macro inside of luacode* seems to be noneffective.
\listfiles
\documentclass{minimal}
\usepackage{...
5
votes
0answers
175 views
Pre-built preamble with LuaLaTeX and microtype
I have been trying to get super-fast compiles with LuaLaTeX by using a pre-built preamble for my documents. However, every time I try to compile, I get this error:
No file main.aux.
[\directlua]:1: ...
0
votes
1answer
51 views
How to integrate xkeyval keys with Lua code
I am currently maintaining a template that uses directlua to compute a value based on a number of parameters defined as command keys with keyval. As it stands, it compiles correctly. However, when I ...
4
votes
1answer
68 views
Kerning of pairs with LuaTeX for babel shorthands
I want to make use of the pairwise kerning of this answer: https://tex.stackexchange.com/a/370469/75284 using fonts.handlers.otf.addfeature to adjust the kerning of character pairs with the hyphen -. ...
2
votes
2answers
456 views
Using direct lua to read binary bytes to plain text?
In this thread, @David Carlisle tells us how to use luatex to read some of the properties of a png image. Alas, the image library seems to fail regarding the colorspace property. Always reports nil.
...
3
votes
0answers
224 views
TeXstudio - Preventing syntax highlighting effects from LaTeX special characters in Lua code
Is there way to make TeXstudio ignore the contents of a \directlua command when performing syntax highlighting? Currently, it ends up causing highlighting like:
Which is distracting when scanning the ...
4
votes
3answers
236 views
Selecting a Specific Array Element in LuaTeX?
I need to create a command that goes \MyCommand{x,y} or \MyCommand{x,y,z} (both ways should be possible), where x, y, and z are three numbers. It should give the output \begin{matrix}x\\y\end{matrix} ...
6
votes
1answer
338 views
LuaLaTeX: Calculate length in Lua
I apologize if this a rookie question, but I find it extremely hard to find a solution to my Lua problem using online searches and browsing reference manuals.
I would like to calculate a length: ...
1
vote
0answers
192 views
Create external file (like a Makefile) whit real tabs using LaTeX and Lua code
I'm trying to generate a external Makefile (and others) file using latex and the filecontents or fancyvrb package. As the \t (tabs) characters in input file are converted to space in output file (see ...
5
votes
2answers
261 views
Code Comment in directlua
How can I add comments to my directlua code?
{\catcode`\%=12
\directlua{
function boxed (s)
??? Add a comment ???
if not(boxedflag) then
i=string.find(s,'^!!!')
if(i==1) then
boxedflag=true
...
5
votes
1answer
211 views
Write to aux file directly from lua
Is it possible to write to the aux file directly from within a \directlua command?
I am converting an older package to LuaLaTeX, which at some point builds a large string and writes it to the aux ...
4
votes
1answer
143 views
Fixing problems in latin translitteration of acute accented cyrillic vowels with \directlua
A good translitteration method from cyrillic to latin characters using XeLaTeX is discussed in Using XeTeX for automatic transliteration of cyrillic letters
Actually I'm using LuaLaTeX. the ...
4
votes
1answer
125 views
How to get a customized number of decimal places in tex.sprint / directlua / qrCode?
The number of decimal places is "9" in the following example: string.format("\%0.9f", X).
How can one achieve the replacement of the fixed "9" decimal places with "NumberOfDecimalPlaces" (in ...
2
votes
1answer
1k views
How to get a carriage return (newline) in directlua (tex.sprint) inside a QRCode?
How can one get a carriage return at the end of each line (Lualatex) ?
\documentclass{article}
\usepackage[nolinks,forget]{qrcode}%
\begin{document}
\newcommand{\Space}[0]{\ }%
\newcommand{\...
