Just a short post to share a wonderful C library I recently came across: libotf which provides a really nice API for working with OpenType fonts. Of course, LuaTeX already has excellent support of OpenType fonts through the use of…
If you want to explore passing UTF-8 string data to/from LuaTeX to your C code/library you may want to convert the UTF-8 data back into Unicode code points (reversing the UTF-8 encoding process discussed in this post). To do that…
As you read about OpenType fonts and Unicode you come across terms such as “Glyph IDs”, Unicode characters/code points and suchlike. And this can be a bit puzzling: what’s the relationship between them? In this post I’ll try to give…
I promised to finish the series on Unicode and UTF-8 so here is the final instalment, better late than never. Before reading this article I suggest that you read Part 1 and Part 2 which cover some important background. As…
The following example may help to understand a little more about \directlua{} expansion. \documentclass[11pt,twoside]{article} \begin{document} \def\xx{Hello} \def\yy{(} \def\zz{)} \newcommand{\hellofromTeX}[1]{ \directlua{ function Hello(str) tex.print(str) end \xx\yy#1\zz }} \hellofromTeX{“Hello World”} \end{document} Here’s how it works. Code within \directlua{} is expanded according…
Carrying on the experiments. How well does Word render native objects to blog posts? Here are some Word charts and graphics. The images you see have been rendered by Word and then uploaded. I’ve not edited or altered them in…