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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245 views

LuaLaTex: Where do we stand as of 2014? [closed]

I've been impatiently waiting to switch from pdfLaTeX to LuaLaTeX, specially because it has been stated that the latter is the successor of pdfLaTeX (as described by Xavier in ...
11
votes
0answers
422 views

Selecting optical sizes for all fonts in a family

XeTeX and LuaTeX are able to assign optical sizes to fonts when they are provided. In those situations where XeTeX or LuaTex are unable to correctly assign optical sizes I am able to specify them but ...
10
votes
2answers
267 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
3k 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 ...
10
votes
2answers
272 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
137 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
2answers
679 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 ...
10
votes
3answers
248 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
551 views

Which fonts can be used with *unicode-math* package?

What can i put into \setmathfont{<...>.otf} for the unicode-math package to make it all work (with XeLaTeX or LuaLaTeX)? There are several suggestions on the GitHub page of unicode-math, but ...
10
votes
2answers
109 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
1answer
475 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 ...
10
votes
2answers
535 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 ...
10
votes
2answers
824 views

fontawesome icons are getting too big using XeLaTeX

The following example must be compiled with XeLaTeX to reproduce the issue. % arara: xelatex \documentclass{article} \usepackage{fontawesome} \begin{document} Text Text \faMobilePhone\ Text Text ...
10
votes
2answers
282 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
2answers
572 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 ...
10
votes
1answer
152 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
196 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) ...
10
votes
2answers
323 views

Get cell content from a Google doc spreadsheet using LuaTeX

I know that LuaTeX can access network resource (at least ConTeXt can). Would it be possible to get cell values in a macro, from a Google Docs spreadsheet, dynamically at compilation time, with ...
10
votes
2answers
428 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} ...
10
votes
1answer
427 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
7k views

Problem while compiling friggeri CV template with: ' fontspec error: “font-not-found”'

I have somme problem while I'm trying to compile template CV from: http://www.latextemplates.com/template/friggeri-resume-cv . I have install texlive-full package on Ubuntu and tryied to compiled this ...
10
votes
1answer
202 views

How to debug METAPOST inlined in ConTeXt? (Or “message” primitive and “loggingall;” in inlined METAPOST)

I have a METAPOST program that works fine with mpost, but fails when I try to run it inline in ConTeXt. In order to debug it, I would like to see the usual METAPOST logging and/or to use the METAPOST ...
10
votes
1answer
525 views

Bad position equation number Lualatex

If a math display is too wide, then the \eqno appears on the next line on the left instead of on the right as it should. Does anyone know how to solve this problem? This is an example: ...
10
votes
3answers
1k 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 ...
10
votes
1answer
575 views

XeLaTeX, LuaLaTeX different default font features

The following MWE is producing different outputs on XeLaTeX and LuaLateX: \documentclass{scrartcl} \usepackage{fontspec} \setmainfont{FoglihtenNo04-070.otf} \begin{document} ffi ew \end{document} ...
10
votes
1answer
169 views

Accessing user-selectable features in GentiumPlus in XeLaTeX/LuaLaTeX

Specifically, the combination of f plus î in the italic ends up with the upper curl of the f smashed into the peak of the circumflex (other fonts have the same problem, but the result is even uglier). ...
10
votes
1answer
217 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 ...
10
votes
2answers
650 views

Do XeTeX and LuaTeX always use Unicode?

I am writing some functions to manipulate strings. A typical way to produce a character with a given character code is the \lowercase primitive. The following code produces a character with code 234, ...
10
votes
1answer
205 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 ...
10
votes
1answer
90 views

LuaTeX hpack_filter callback not triggering on certain hlist creations

EDIT: The hpack_filter is triggered and my question pointless. Consult my answer on why I missed the callback invocation. I am using LuaTeX to analyze the creation process of math expressions in a ...
10
votes
1answer
389 views

ledpar: Get rid of any space between paragraphs while retaining the synchronization of the pagecontents

My question: Is there a way to simply get rid of any space between the paragraphs of ledpar- while retaining the pagesynch? (I understand that synchronizing paragraphs is a feature of ledpar, put I ...
10
votes
0answers
91 views

Strange linebreaks with microtype & LuaLaTex [duplicate]

I have a weird problem. If I compile with LuaLaTex and microtype some of my line breaks are messed upped, but I don't get any warnings. XeLaTex with/without microtype or LuaLaTex without microtype are ...
10
votes
0answers
148 views

Why does fake slant only seem to work after italics has been used?

Based on this question, can someone explain this behavior: \documentclass{article} \usepackage{fontspec} \setmainfont[ SlantedFont={Linux Libertine O}, SlantedFeatures={FakeSlant=0.30}, ...
9
votes
4answers
308 views

Patch font with LuaTeX

I don’t like the spacing of \textperiodcentered = U+00B7 in the OpenType cut of Latin Modern. Different from Computer Modern—and in fact, from just about any font I have on my system—LM gives the ...
9
votes
3answers
287 views

Fixing fonts with LuaTeX feature files

Bringhurst urges us in Chapter 10 of The Elements of Typographic Style: Version 4.0 to fix the font files if needed. See below a summary of the chapter using the section titles. Bringhurst suggests ...
9
votes
3answers
233 views

Using \input|texlua… to emulate \directlua in pdfTeX

When --shell-escape is enabled, pdfTeX allows to run external programs and input the result expandably with \input|"...". Together with the Lua interpreter texlua, this could be used to provide a ...
9
votes
2answers
845 views

British hyphenation with either xelatex or lualatex

For several reasons, I am working on a source file that should be compilable by either xelatex or lualatex. I would like British hyphenation for the text and am using csquotes and biblatex with ...
9
votes
2answers
270 views

How to change operator symbols in truth table

I need to type truth tables for my computer architecture classes. Until now I was using a manually typed tabular but today I've found this answer from Scott H. which provides a command called ...
9
votes
2answers
546 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} ...
9
votes
3answers
2k 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
244 views

LuaLatex: How get ascii text from paragraph, change it and render again

Is possible to render paragraph in LuaTeX -> get ascii text with hyphenation -> put back text and render again? I have simple text: "Lorem ipsum dolor sit amet, conse... laborum." I need get this ...
9
votes
2answers
686 views

Is lualatex supposed to be a superset of pdflatex? (regarding production of PDF)

In other words, is it a bug if lualatex cannot compile a document that pdflatex can? Based on the answers to this question How to expand TeX's "main memory size"? (pgfplots memory ...
9
votes
2answers
1k 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 ...
9
votes
3answers
570 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 ...
9
votes
2answers
981 views

lualatex error with Brazilian Portuguese babel option

It seems that lualatex does not known the Brazilian dialect of the Portuguese language with the babel package. When compiling the simple document: \documentclass{article} \usepackage[brazil]{babel} ...
9
votes
3answers
835 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 ...
9
votes
1answer
240 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)?
9
votes
2answers
239 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 ...
9
votes
2answers
468 views

percent signs in luacode* environment (LuaLaTeX)

Can someone explain what happens here: \documentclass{article} \usepackage{luacode} \begin{document} \begin{luacode*} tex.print("xx\%a","yy\\%b","zz\\\%c") \end{luacode*} \end{document} The ...
9
votes
2answers
158 views

Can I create a node list from some text entirely within lua?

I'm playing around with luatex and learning about nodes and callbacks. What I'd like to do is be able to add some text via a particular callback. The type of callback that I'm interested in is one ...