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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18
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4answers
1k views

How do I get a list of all font features supported by current font

With LuaTeX, how do I get a list of OTF features supported by the current font in use printed? For example, with otfinfo, I can get a list of OTF features by otfinfo -f font_file_name. Can I do ...
40
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 ...
13
votes
2answers
4k views

Selecting main math font in LuaTeX?

I’d to set some fairly simple maths in Minion Pro (and potentially other system fonts), using LuaTeX.  I’d hoped that something like the following should work: \documentclass{minimal} ...
38
votes
1answer
570 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 ...
33
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
463 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 ...
13
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 ...
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
3answers
329 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} ...
22
votes
2answers
1k 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 ...
18
votes
5answers
1k views

Combining \ifxetex and \ifluatex with the logical OR operation

I want to write in the preamble of a LaTeX document code that should be take into account by different compilers when the document is typeset. There are fragments that should be used: only by ...
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
681 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
1answer
461 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
1k 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
919 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 ...
8
votes
1answer
936 views

How to pick a specific symbol from a specific font?

Using LuaLatex, I need two very specific symbols from two very specific fonts, namely from the ZapfDingbats and the WingDings font. I understand how I could use the fontspec package to set those ...
18
votes
2answers
422 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 ...
14
votes
2answers
4k 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
680 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
627 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
799 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 ...
10
votes
1answer
925 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} ...
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
234 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
359 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
783 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
612 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 ...
3
votes
1answer
2k views

fontspec (xelatex) finding fonts by name, installed or in TEXMFHOME

This is related to my other question: fontspec search path in TEXMFHOME I'm trying to write a package using a specific opentype font through fontspec. Using TeXLive 2013 on a Debian computer (a ...
24
votes
1answer
468 views

Bad interaction between fontspec and some lua code that performs string-related search and replace operations

Update 2013/05/28: The selnolig package is now on the CTAN. Comments and critiques always welcome! If you wish to contact me about any aspects of the package, please use the email address that's given ...
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
889 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
195 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 ...
12
votes
3answers
1k 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 ...
9
votes
3answers
323 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} ...
8
votes
1answer
537 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} ...
8
votes
1answer
259 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
1answer
829 views

TikZ Region bounded by points

I have a set of points. I would like to "enclose" the points by a region. Since a picture is worth a thousand words: The dots are the points I want to enclose. I want the ability to control the ...
6
votes
0answers
71 views

letters and spacing in Arabic — bug in OpenType layout of LuaLaTeX

I perceive the following unwanted outcome: Two issues: In the first line, the last word on the right has a small gap between the second and the third letter from the right that is not supposed to ...
5
votes
0answers
250 views

Will XeTeX or LuaTeX support COLR table in OpenType fonts? [closed]

Announced at the Microsoft //build conference: A data structure, implemented as a new 'COLR' table in OpenType, breaks down the base glyph into a separate set of glyphs, each with its own z-order and ...
5
votes
0answers
916 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 ...
4
votes
1answer
185 views

Pdf bookmark error in beamer

Hi. I've compiled a Persian language beamer file by both luapersian and persian babel package using LuaLaTex, and in both I've the same problem in pdf bookmark as shown in the figure (some strange ...
4
votes
1answer
200 views

LuaTeX won't end a line at Unicode emdash

I'm using LuaLaTeX instead of XeLaTeX for my book, mainly because it supports microtype's expansion feature, to produce the optimal word spacing and line breaking that will result in the most uniform ...
2
votes
1answer
89 views

How to insert Bengali text in IEEE conference paper?

I am writing a paper for an IEEE conference using IEEEtran.cls. The primary language of the paper is English but my work deals with Bengali language. I want to know how do I insert some Bengali words ...
1
vote
1answer
977 views

Some fonts not recognized by LuaLaTeX

I have made an Ubuntu 14.04 fresh installation on a computer installing the following: texmaker 4.1-1 texlive 2013 texlive-xetex 2013 texlive-luatex 2013 texlive-fonts-extra 2013 ...
1
vote
2answers
685 views

Print large macro block from Lua to TeX

I have a rather large block of TeX macro code that is no problem to do in TeX but I'd like to create the macro in Lua instead The macro contains various TeX macro characters (\, %, [, ]) How can I ...