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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10
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1answer
315 views

How to report a bug in LuaTeX? [closed]

I think I found a bug in LuaLaTeX. I use the current version from TeX Live 2012. lualatex --version This is LuaTeX, Version beta-0.70.2-2012052410 (TeX Live 2012) When I compile the following ...
8
votes
4answers
10k views

fontspec LuaTeX error

I have installed "ProTeX" with "TeXstudio 2.3" & "Miktex 2.9". I get an error ! The fontspec package requires either XeTeX or LuaTeX to function when I attempt to run \documentclass{article} \...
8
votes
2answers
3k views

Can XeLaTeX | LuaTeX import movies?

It seems that XeLaTeX cannot handle movies. I imported movies into PDF produced with pdflatex compiler using the multimedia package that comes with beamer. My search over various boards revealed that ...
7
votes
1answer
231 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} \begin{...
5
votes
0answers
975 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
591 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
326 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 \the\...
3
votes
1answer
210 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} \newcommand{\...
1
vote
1answer
131 views

references to floats without ever using figure numbers (possbily using lua or python)

Stephen Wolfram's 'A New Kind of Science' states in its colophon that it has 973 illustrations spread out over 1280 pages. Remarkably, he accomplishes this without ever using figure numbers. No figure ...
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
601 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
483 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
357 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} \usepackage{...
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 ...
19
votes
2answers
860 views

What is the right way to input prime with Unicode-math (LuaTeX backend)

I opened an issue about this in Unicode-math's github repository. However, I am not so sure it is actually a bug, or I just did something wrong. Here is a minimal example, \documentclass{article} \...
39
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 ...
9
votes
0answers
455 views

lualatex and polyglossia with \setdefaultlanguage{german} does not work after recent texlive update

Here is a minimal example: \documentclass{article} \usepackage{polyglossia} \setdefaultlanguage{german} \begin{document} Hallo Welt! \end{document} And here is the error message: (/mnt/software/...
13
votes
1answer
701 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 ...
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, \...
9
votes
2answers
2k views

\tikzexternalize doesn't work with lua code

The following code from the pgf manual compiles fine with lualatex --shell-escape \documentclass{article} \usepackage{tikz} \usetikzlibrary{external} \tikzexternalize \begin{document} A simple image ...
21
votes
5answers
804 views

Highlight every occurrence of a list of words?

In order to revise a draft, and identify related sections, I would like to identify similar words (by color of text, highlight, underline, or otherwise) according to topic. For example, I would like ...
16
votes
2answers
882 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
357 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 & \text{...
11
votes
1answer
622 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
1k 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
441 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
1answer
868 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
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
663 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
806 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
1answer
1k 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} \usepackage{...
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
1answer
297 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 !(stuff1)|...
8
votes
0answers
237 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 ...
7
votes
2answers
377 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
876 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 ...
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
895 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
246 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
1answer
298 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 ...