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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7
votes
1answer
215 views

LuaLaTeX: How to use a \char directive inside a string.gsub function?

Consider the following MWE: % !TEX TS-program = lualatex \documentclass{article} \usepackage{fontspec} \setmainfont[Ligatures=NoCommon]{Latin Modern Roman} \usepackage{luacode,luatexbase} ...
6
votes
3answers
849 views

lualatex and line breaks after em-dashes

I’ve just installed TeX Live 2012. As mentioned elsewhere on this site, the release history explains that “the parameter \XeTeXdashbreakstate is set to 1 by default, for both xetex and xelatex. This ...
5
votes
0answers
954 views

LuaTeX font database cannot be created in MiKTeX 2.9 [closed]

Quite in a hurry I am trying to setup MiKTeX 2.9 on the computer of a friend of mine. We started with the portable version but the problem is the same in the normal install. Before the compilation ...
11
votes
3answers
584 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 ...
10
votes
2answers
324 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 ...
9
votes
2answers
335 views

How to use punctuation marks in LuaLaTeX with unicode-math?

I also posts this here: http://texwelt.de/wissen/fragen/3000/interpunktion-in-lualatex-mit-unicode-math-von-hauptschriftart. The problem is that I want to have the \period symbol (also range="002E ...
8
votes
3answers
764 views

How to do a 'printline' in LuaTeX

I have just started exploring the world of LuaTeX and wanted to write a piece of code, that prints a name to a new line in the document. \directlua{ for i=1,3,1 do tex.print("FOO") end } which ...
3
votes
1answer
199 views

Write/Read values of the LaTeX commands (like \title, \ author etc) in file using Lua

This problem relate with other my question here . I found a solution with pdfpages package thanks to TX.SX: \documentclass[]{scrbook} \usepackage{authblk} \usepackage{pdfpages} ...
48
votes
4answers
4k views

Abandon LaTeX2e for LaTeX3 or LuaTeX

I think my question is: Should I abandon pdflatex, possibly for xetex or context, and a TeX/LaTeX based macro writing approach, possibly for a LuaTeX or LaTeX3 based approach? Possibly relevant to ...
42
votes
1answer
2k views

Speeding up compilation using precompiled preamble with LuaTeX

Compiling my documents with lualatex takes quite long. I have a complex preamble, and I noticed that it takes long to process this part of the file. Today, I came across this website, which proposes ...
38
votes
1answer
597 views

Replacement(s) for TeX's paragraph builder using LuaTeX

The LuaTeX engine provides a callback that allows you to replace the built-in paragraph builder by your own algorithm. My question is twofold: does there exist a lua implementation that fully (or ...
35
votes
7answers
3k views

What are the advantages of Lua over other scripting languages for a TeX implementation?

The question is inspired by Martin Schröder's answer to I am new to TeX. Should I use LaTeX, XeLaTeX, …? as well as my two previous questions on this forum: Automatic document update Generate LaTeX ...
41
votes
4answers
1k views

Are XeTeX and LuaTeX platform dependent?

One of the main goals that Don Knuth had when developing TeX (other than the obvious one of creating high-quality documents) was a 100% platform independence. A document produced on one system should ...
25
votes
1answer
476 views

Differences regarding kerning and ligaturing when using the MacTex2013 and MacTeX2014 versions of LuaLaTeX with .ttc fonts

This posting is a follow-up to the postings Can't generate ligatures with LuaLaTeX under MacTeX2014 and MacTeX2015 when using certain fonts and LuaLaTeX, fontspec, .ttc fonts and kerning (Optima on ...
18
votes
2answers
8k views

Specify different fonts for bold and italic with fontspec

The main font I use for my LuaLaTeX document lacks bold and italic variants. I'd like to specify a different font for those variants using the fontspec package. Initially what I had in my preamble ...
14
votes
2answers
1k views

Parsing files through LuaTeX

This question has two parts: How would one generally parse a file with LuaTeX, assuming the file only holds data that is delimited either by spaces, commas or semicolons. How would you parse the ...
29
votes
3answers
1k views

Create bitmap within TeX file

I'd like to create a bitmap (black and white) from within LuaTeX (or pdfTeX) and rescale it afterwards. For example (a 4x4 bitmap) could be made by \makebitmap{0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0} I ...
23
votes
3answers
348 views

How to access the last line of a paragraph with LuaTeX

Consider the following code, using traditional TeX programming that through a series of boxing and unboxing, grabs the last line of a paragraph and centers it. \documentclass{article} ...
28
votes
2answers
1k views

Suppress certain ligatures generally

Whether or not certain ligatures should be used (if available in a font) is a least in theory depending on the language used. For example traditional German texts would not have an "ffl" ligature but ...
22
votes
2answers
2k views

Why is LuaLaTeX so slow and is there anything I can do about it?

A while back I started bumping into issues with LuaLaTex and switched to compiling a project in XeLaTeX. Since then it seems most of my issues have been resolved upstream or are fixable one way on ...
22
votes
2answers
2k views

fontspec, lua, microtype: Renderer=Basic no longer working for specific font styles

You may have noticed that, as of now,* letterspacing small capitals is not as easy as it was in pdfTeX, where we could simply combine \textsc with microtype's \textls. Consider this example, which ...
38
votes
1answer
2k views

How to suppress a “Rare” ligature that pre-empts a “Common” ligature for the same character pair?

In several documents I'm creating with LuaLaTeX (using MacTeX2012 on a Mac that's running MacOS X 10.7.5), I primarily use the Adobe-issued font Garamond Premier Pro as the main text font. I use this ...
12
votes
3answers
2k views

How to get accented unicode characters that can be copy-pasted?

The aim is to generate the .pdf with accented characters (the .tex file has mixed macro and unicode input), in a way that the .pdf text can be copy-pasted. An example: \documentclass{article} ...
13
votes
1answer
693 views

duotone PDF files with lualatex

How to provide duotone PDF files for publishers who require it? I have a document with images (graphicx \includegraphics), TikZ diagrams, compiled with lualatex. So, if I understand it right, there ...
16
votes
2answers
866 views

Footnote numbers in index (e.g., 23n3)

I'm currently weighing indexing options for a book-length project. One of the more surprising hurdles is that there doesn't seem to be a way to create an index (in my case, several indices) that ...
14
votes
2answers
345 views

LuaLatex and large braces with MathTime Professional 2

The following example behaves badly in LuaLatex: \documentclass{article} \usepackage{amsmath} \usepackage[lite]{mtpro2} \begin{document} \[ x = \ccases{ x & 1,\\x & 2,\\x & ...
11
votes
1answer
571 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 ...
10
votes
3answers
2k views

Changing language back and forth with polyglossia

I'm using polyglossia and lualatex to compile my source, and I am switching languages back and forth inside my document. It looks like polyglossia (or myself), is not doing what it is supposed to do: ...
8
votes
1answer
980 views

Installing Lua Modules for use in LuaLaTeX - the sequel

There is a question with the same title, Installing Lua Modules for use in LuaLaTeX, that apparently went unresolved. I'm having similar issues and at this point am out of ideas. I'm running Debian ...
18
votes
2answers
433 views

Can the Lua part of LuaTeX know about tokens?

Using \directlua and tex.print, it is possible to send strings of characters back and forth between TeX and Lua. Let's take an example: starting with a macro \A, I pass its replacement text to Lua and ...
15
votes
2answers
5k views

\documentclass: undefined control sequence

There's probably a ton of questions about this already but I've been spending all day feeling overwhelmed with the TeX learning curve. I'm trying to learn LuaTeX (by the way, if you know of a good ...
11
votes
3answers
767 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
655 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
1answer
848 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
993 views

Too much space after integral sign with unicode-math and lualatex

(I had a feeling this was a duplicate, but couldn't find an older question about it. Forgive me if I'm just bad at searching.) Consider the minimal example \documentclass{article} ...
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 ...
9
votes
1answer
1k views

LuaTeX cannot find existing font

My Fedora 17 LuaLaTeX (2012) system just keeps complaining about some particular (of course existing) font not existing. It can't spit out any PDF from a TeX file using that font. This is the error I ...
8
votes
0answers
236 views

xdvipdfmx parse error when using particular font with fontspec [duplicate]

I am using the font IM FELL English PRO (open-source otf here) via the fontspec package, and when I tried typesetting the characters \"{a}, \'{n} or \"{o}, I got this error: xdvipdfmx:fatal: Type2 ...
8
votes
1answer
284 views

Luatex Pattern matching %b

I have never tried to include Lua code in a document before so please be gentle. I am after a pattern matching expression that will eventually take (stuff1)->(stuff2) and replace it with ...
7
votes
2answers
370 views

btex and etex in luamplib labels

I've been experimenting with METAPOST and in particular with luamplib. I found that I couldn't have tex typeset labels with the btex/etex construct as apparently is possible with straight up METAPOST. ...
6
votes
1answer
855 views

Possible LuaLaTeX Problem (compilation seems to hang)

I asked a question earlier, where I had problems with my font specification, since I am using LuaLaTeX with Caslon. I am on Win 7 with TeXLive 2013 (up to date). The file compiles just fine with ...
6
votes
1answer
637 views

Precompiled header in Lualatex on Windows?

I am trying to typeset a longer document with lots of packages. Now it seems that pre-compiling the header can speed up the edit-compile-revise cycle quite a bit. I tried to follow the guideline from ...
5
votes
1answer
266 views

After MiKTeX update when using LuaLaTeX: Package pgf Error: Driver file ``pgfsys-luatex.def'' not found

I just updated my MiKTeX instance to the latest packages and am using the LuaLaTeX compiler. Whenever a document relies on pgf I get the following error: ! Package pgf Error: Driver file ...
18
votes
1answer
1k views

Why do I need Lua or LaTeX3 in a plain old technical document?

I wrote and maintain a couple hundred page computer related technical spec in XeLaTeX. I use tables, figures, bitfields, algorithms and other typical trappings. I'm intrigued by LuaTeX and LaTeX3, ...
14
votes
1answer
893 views

Is it possible now to use microtype with opentype fonts?

LuaTeX has limited support for microtypograhpy now, and it can be invoked if only type1 fonts are used. But is it possible for microtype to work with opentype fonts loaded with fontspec now? I have ...
13
votes
1answer
227 views

How can you check if fontspec (with LuaLaTeX) can load a font?

I want to check if fontspec (with LuaLaTeX) can load a certain font and if not try to load another one. For pdflatex I did by checking if the package file exists; but I don't find an easy way to do it ...
13
votes
3answers
2k views

Compile all tex files within a folder at once

Is there a way to compile all tex files within a specific folder, from LINUX terminal, at once? I would like to do this using pdflatex or lualatex in a way to create a pdf file for each distinc ...
10
votes
3answers
367 views

Remove space before punctuation

I need to remove locally spaces arround (especially before) punctuation signs. This spaces are added by french polyglossia. \documentclass{article} \usepackage{fontspec} \usepackage{polyglossia} ...
10
votes
1answer
292 views

querying whether a font feature has been activated via a fontspec command

A LaTeX package I'm currently writing makes use of -- and definitely requires -- some of the power of LuaLaTeX. I would like to make my package's user interface -- in particular, the options that need ...
8
votes
1answer
580 views

Compilation error with LuaLaTeX (luaotfload- database.lua)

This file does not compile after updating TeXLive 2013 : \RequirePackage{ifluatex} \documentclass[12pt]{standalone} \ifluatex \usepackage[no-math]{fontspec} ...