LuaTeX is a Unicode-capable extension of TeX which integrates the scripting language Lua. Use this tag if your question is about LuaTeX or LuaLaTeX specific problems and is not related to standard (La)TeX. For ConTeXt related questions use {context-mkiv}.

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11
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3answers
489 views

In which order is Lua Code in LuaTeX being processed

Can someone help me understand the order in which LuaTeX documents are being processed? From what I've understood, the order is the following: the code is being read, top to bottom when the ...
11
votes
2answers
801 views

How can I enable italic correction for LuaTeX?

LuaTeX ignores mathematical italic correction by default, as noted by Khaled Hosny. This leads to some awful errors when using some alphabet which is very slanted, like XITS' mathematical script ...
11
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2answers
629 views

Availability of LaTeX packages' functionality in ConTeXt, XeTeX, and LuaTeX

I am considering trying out ConTeXt, XeTeX, and LuaTeX, but one concern of mine is the fact that I am using a large number of LaTeX packages. There are a number of questions comparing these TeX ...
11
votes
3answers
3k views

How to display the font size in use in the final output

How can I display the font size in use at a particular point of the document. For example, in the following code, I produced a PDF file showing the fonts actually used for each shape and size, ...
11
votes
4answers
1k views

Replacing Unicode non-breakable spaces by normal spaces

I am using the Neo keyboard layout, which uses all kinds of modifier keys to input all kinds of characters (e.g. Greek letters and mathematical symbols). It also has shift+Mod3+space mapped to Unicode ...
11
votes
3answers
565 views

How to display only certain lines of a paragraph?

From reading Knuth's TeX Book (Chapter 14 How TeX Breaks Paragraphs into Lines), I understand that entire paragraphs are read in and then "massaged" by the "line-breaking algorithm" in an optimal way ...
11
votes
2answers
847 views

tabular numbers in tables, proportional in text

I'm using LuaTeX with a font that has proportional, lining and tabular numbers available. Is it possible to set things up so tables automatically use tabular numbers - but proportional numbers are ...
11
votes
2answers
666 views

Concurrently interleaving execution of Lua and TeX in LuaTeX

The usual way to interleave Lua and TeX in generating documents is by invoking Lua from Tex through the \directlua facility and generate Tex from Lua using tex.print(). For example, consider the ...
11
votes
2answers
696 views

Access specific characters in LuaTeX

Recently, I switched from XeTeX to LuaTex for a document of mine. However, there is a feature which I do not immediately see how to convert: Accessing specific characters. In particular, I need the ...
11
votes
2answers
362 views

\ifpdf returns true when using LuaLaTeX

The ifpdf package is supposed to detect if pdfTeX is running: This package looks for pdfTeX in pdf mode and implements and sets the switch \ifpdf. (from the ifpdf documentation) However, when I ...
11
votes
3answers
2k views

Matrix multiplication (and other operations) macro using lua module

I am hoping to be able to create a macro to multiply matrices using a lua module. The module is here: https://raw.github.com/davidm/lua-matrix/master/lua/matrix.lua As suggested to me in a previous ...
11
votes
1answer
291 views

XeLaTeX can't use TikZ 3 features?

I copied this code from this answer. \documentclass[tikz]{standalone} \begin{document} \tikz [blend group=screen] { \fill[red!90!black] ( 90:.6) circle (1); \fill[green!80!black] (210:.6) ...
11
votes
1answer
177 views

Replacing # characters with luatex

The minimal example below should replace all # characters with another symbol. This works well if I use \# to escape it, but the user should later be able to enter it directly, e.g. to enter hash ...
11
votes
2answers
577 views

Is direct utf8 input of combining diacritics in math mode possible with lualatex?

I am trying to typeset a document with combining diacritics directly input in it. I use LuaLaTex. Here is a minimal example illustrating the original issue: \documentclass{minimal} ...
11
votes
2answers
455 views

Switching to lualatex: How to translate font setups?

I am a long-term pdflatex user. Once in a while I want to give lualatex a try (e.g., to try the recent TikZ graph layout engine). A couple of good answers here at tex.se describe what to do in that ...
11
votes
1answer
467 views

Define fallback font for specific Unicode characters in LuaLaTeX

This closed question prompts me to propose a more general question and a solution I don't think has been demonstrated here. When compiling with LuaLaTeX and using Unicode input, how do you set up a ...
11
votes
1answer
1k views

Fake bold in LuaLaTeX

I am sometimes using a font that has no boldface, so I am wondering whether or not there is a way to use some fakebold-feature in LuaLaTeX. The fontspec documentation explains a feature for XeLaTeX, ...
11
votes
1answer
490 views

text figures (old style numbers) and mhchem

How do I achieve lining figures with mhchem while maintaining text figures in the text (lualatex). My MWE is: \documentclass{minimal} \RequirePackage[paperwidth=70mm, paperheight=20mm, left=10pt, ...
11
votes
1answer
5k views

Package hyperref Warning: Token not allowed in a PDF string [duplicate]

My document contains section titles that are formatted by the listings package. (The section names are names of configure script switches.) ...
11
votes
3answers
682 views

uneven line spacing

This is something that is already annoying me for quite a while. (I use LuaLaTeX) The line spacing of the Arabic text is uneven (see pic and/or MWE below). In particular, I think, lines 2, 7, and 10. ...
11
votes
2answers
613 views

How can I fix a problem where italics prevent line breaking when using microtype? [duplicate]

I wish to use protrusion and expansion from microtype as I like the look you get with them. I use amsthm and typeset theorems in italic as usual (with \theoremstyle{plain}). With microtype enabled, ...
11
votes
1answer
613 views

Reduce compilation time for opentype fonts (otf)

I have some opentype fonts (otf) which I use with fontspec. Everything works fine. During the compilation LuaLaTeX load the otf-files in a temporary file. For example: (load: ...
11
votes
2answers
649 views

How can I replace a character (zero)?

Is it possible to replace characters in pdflatex? I use the Minion Pro and Myriad Pro font and the zero looks like a small 'O'. I want to replace the zero by a zero with a dot or slash in the middle ...
11
votes
1answer
828 views

MiKTeX’s LuaLaTeX and minitoc: “I can't write on file …mtc”

When compiling the code below with LuaLaTeX I get the error: "I can't write on file 'test.mtc'". Any ideas on how to resolve this? (Btw, the file test.mtc is there and contains the word "Contents") ...
11
votes
3answers
2k views

Replacing greek glyphs in math mode

I want to switch fonts, away from computer modern. I'm pretty sure that I will end up with a mixture of fonts. I can't provide a full list of required features, but Linux Libertine's feature set ...
11
votes
2answers
745 views

How can I achieve dictionary headers for two page spreads in LaTeX

I would like to produce a document where I can display the first and last items of each two page spread in the headers of both the left and right pages. I know I can use \markboth{}{} to collect the ...
11
votes
1answer
800 views

How to generate compounded diacritical fonts for Sanskrit with XeTeX and LuaTeX?

I'm trying to use diacritical marks for Sanskrit with a font that does not natively support all the marks (Minion Pro). So they are compounded somehow by XeTeX. This works almost fine in using: ...
11
votes
1answer
473 views

How to make lualatex select the correct OpenType features in math mode?

After fiddling around with egreg's answer to my previous question, I finally discovered that lualatex is not selecting the tnum OpenType features, that is it uses the default numerals instead of the ...
11
votes
1answer
274 views

How to pass a LaTeX argument verbatim to lua?

I would like to pass an argument verbatim from LaTeX to lua including LaTeX commands and end of line characters. The example below takes care of the former issue, but not of the latter. Is there a ...
11
votes
1answer
221 views

Why does using small caps break endash ligatures in lualatex?

I've spent most of my day trying to migrate a project from pdftex tolualatex. The experience has been mostly positive but there are a few gotchas I can't make heads or tails of. Most recently I've ...
11
votes
1answer
269 views

Contextual Substitution with LuaLateX

Contextual substition doesn't seem to work with LuaLateX, while it works fine with XeLateX. Am I doing something wrong or is this a bug? \documentclass{article} \usepackage{fontspec} ...
11
votes
1answer
168 views

Accessing to .log messages from LuaTeX. Is it possible?

Reading the question How to visualize the underfull box in final ouput PDF files I thought that it could be possible to use LuaTeX to intercept the "Underfull vbox" message and draw some kind of ...
10
votes
2answers
434 views

Lua calculation fails with a negative number

The macro runs except when the real b is negative. Why ? \documentclass[a4paper,12pt]{article} \usepackage[upright]{fourier} \usepackage[no-math]{fontspec} \usepackage{luacode,luatextra,luaotfload} ...
10
votes
2answers
620 views

Who maintains babel now?

Who manages babel now? It is said on CTAN that Johannes L. Braams is no longer active on this package. I'd like to contribute babel's support for Russian in LuaLaTeX.
10
votes
2answers
343 views

How to put signature number in footer (derived from page number)?

To make my book easier to bind I'd like to automatically put the signature number with small type in the footer of the first page of each octavo signature (except the first one which is given since it ...
10
votes
2answers
150 views

^^M garbles my terminal output

Contrarily to pdfTeX and XeTeX, which send ^^M to the terminal for the character 13, LuaTeX sends the character 13 itself. This garbles the output of my terminal (bash under Ubuntu 10.04). ...
10
votes
1answer
494 views

Is it possible to use Lua to obtain the current working directory?

Package currfile with the abspath option can obtain the absolute path of the current file. However, it relies on running pdflatex with the -recorder flag. Would it be possible to achieve the same ...
10
votes
2answers
146 views

The strange \luaescapestring in LuaTeX

\directlua{% local s = [[\luaescapestring{\TeX}]] print(s)} After \luaescapestring{\TeX}, I think I should get T\\kern -.1667em\\lower .5ex\\hbox {E}\\kern -.125emX then this line will be ...
10
votes
3answers
1k views

Embedding Type 1C fonts using LuaLaTeX

As pointed out in the answer to PDF file size with LuaLaTeX vs XeLaTeX, the difference between using Type 1 and Type 1C fonts in two documents made a big difference in file size. File size is ...
10
votes
2answers
747 views

LuaLaTeX:PGFplots can't read data passed by Lua

I wanted to give a LuaLaTeX answer to this question Here it is the listing I wrote: % !TEX encoding = UTF-8 % !TEX program = LuaLaTeX % !TEX spellcheck = en_GB \documentclass{standalone} ...
10
votes
1answer
310 views

Help with the lua-visual-debug package

The documentation for lua-visual-debug is a little sparse. Can someone interpret the boxes/lines/colors that lua-visual-debug produces?
10
votes
2answers
293 views

Polyglossia and hookrightarrow

Can someone explain why there is a gap between the tail and the head of \hookrightarrow when I load polyglossia with French support ? I'm using LuaLaTeX for producing the .pdf. ...
10
votes
1answer
406 views

microtype tracking disables small caps in luaLaTeX

Normall microtype tracking loosens the tracking of small caps. However, with fontspec's \setmainfont{ebgaramond}, small caps are completely disabled and I get a loose normal text, as opposed to ...
10
votes
3answers
906 views

Why does hyphsubst not work with LuaTeX?

Consider the following MWE: \RequirePackage[ngerman=ngerman-x-latest]{hyphsubst} \documentclass{scrartcl} \usepackage[english]{babel} \usepackage{blindtext} \begin{document} \Blindtext ...
10
votes
2answers
320 views

Accessing side-bearings in LuaTeX

This question has been solved, in XeTeX, by this code: \def\kright#1{\leavevmode #1\kern-\XeTeXglyphbounds3 \the\XeTeXcharglyph`#1 } \def\kleft#1{\leavevmode \kern-\XeTeXglyphbounds1 ...
10
votes
1answer
266 views

What does \luaescapestring do for us?

It seems that all TeX command are expanded into unexpandable tokens (say, TOKENS1) and these token are converted into some other tokens (say, TOKENS2). For example \directlua{ local var = ...
10
votes
1answer
343 views

Convert color name to pdfliteral code

How can I convert a color name (such as used with the xcolor package) to a pdfliteral code, like q 1 0 0 rg (for red)?
10
votes
2answers
112 views

Workaround to make catchbetweenfiletags work with lualatex

I recently discovered that a basic example of the package catchbetweenfiletags doesn't work with lualatex (while it works with pdflatex). What follows is the MWE. Do you know if there is workaround ...
10
votes
1answer
497 views

When using more than 16 math alphabets, \mathtt uses italic font

I know that in TeX, you can only use 16 math alphabets but XeTeX extends this so I was curious to enlarge the number of my math alphabets and I had to redefine some internals of LaTeX. Here is my ...
10
votes
1answer
2k views

Can I get LuaLaTeX to do font variations on the Zapfino font just as XeLaTeX does?

When I use XeLateX on my mac I can get multiple variations for Zapfino like for example explained here under Glyph Variants. However this does not work when I run the same code though LuaLaTeX. Is ...