harfbuzz VS contour

For C/C++ projects that use meson as the build system, there is an excellent way to manage dependencies:

https://mesonbuild.com/Wrapdb-projects.html

https://mesonbuild.com/Wrap-dependency-system-manual.html

meson will download and build the libraries automatically and give you a variable which you pass as a regular dependency into the built target:

https://github.com/qemu/qemu/tree/005ad32358f12fe9313a4a0191...

https://github.com/harfbuzz/harfbuzz/tree/main/subprojects

https://github.com/harfbuzz/harfbuzz/blob/37457412b3212463c5...

Or, if you're using proper operating systems, they're managed by the usual package manager, just like everything else.

If you sympathize with the travails of people working on text rendering in applications, please consider supporting (among other projects):

1. The LibreOffice project (libreoffice.org), the free office application suite. This is where the rubber hits the road and developers deal with the extreme complexities of everything regarding text - shaping, styling, multi-object interaction, multi-language, you name it. And - they/we absolutely need donations to manage a project with > 200 million users: https://www.libreoffice.org/donate

2. harfbuzz (https://harfbuzz.github.io), and specifically Behdad Esfahood the main contributor. Although, TBH, I've not quite figured out whether you can donate to that or to him. At least star the project on GitHub I guess.

As for text, it depends very heavily on what exactly you need. Simple ASCII text and bitmap fonts? Just do it yourself or get a .bdf parser. Simple Latin/Cyrillic-like writing with ok-looking vector fonts (ttfs)? stb_truetype has all you need. Font hinting, subpixel rendering? You use freetype. More complex writing like Arabic? You will have to do shaping as well, say with HarfBuzz. Need right-to-left or unidirectional text? Hypenation? Go for platform APIs if you can (DirectWrite om Windows, CoreText on Mac).

Gold standard? Even though serious bugs are not fixed [1] because "the code is too fragile to touch at this point"? Looks like Android uses HarfBuzz, if so it can't be that bad.

[1] https://github.com/harfbuzz/harfbuzz/issues/2814

The linked libraries are not even close to solving limited subsets of problems solved by FreeType or HarfBuzz. No test is needed if they do not even have a working implementation of particular requisites: Do they work on heterogeneous layouts, directions, languages, locales, scripts, symbols and composites, extensions, variations, legacy, missing, partial or corrupted instructions, standards interpretations, platforms, output devices, nonstandard point structures and grids?

They do not. What they solve is almost a toy problem compared to the size, scope and breadth of these libraries.

Just because some project is implemented in Rust does not make it comparable never mind superior by default.

There is a world out there and it is not homogeneous format and standards-compliant Latin fonts in English LTR text in linear disposition with some generic rectangular subpixel rendering on a regular rectangular grid.

I warmly welcome you to browse closed issues of FreeType [1] and also the closed issues of HarfBuzz [2]. If you feel inspired please do also look into mailing lists and discussion pages related to the development, building, tracking and patching of packages of these projects in any of the numerous places it is used.

The only argument Rust people have is in relation WASM but if you insist in targeting WASM why not fork FreeType, strip it to the strict subset of features your application needs and target it?

Why do it in the first place? Why reinvent the wheel?

As such I will restate my view: I see no gain in using any of these subpar libraries.

[1] https://gitlab.freedesktop.org/freetype/freetype/-/issues/?s...

[2] https://github.com/harfbuzz/harfbuzz/issues?q=is%3Aclosed

I'm not sure if it truly fits this category, but HarfBuzz[0], maintained primarily by Behdad Esfahbod, comes to mind.

[0] https://harfbuzz.github.io/

harfbuzz is a popular library for text rendering. You may also want to check out rustybuzz, a small subset of harfbuzz ported to Rust with pretty great documentation.

I also use HarfBuzz to take care of text shaping (because some languages require different glyphs depending on the context - Arabic for example requires letters to be connected in a word).

contour - https://github.com/contour-terminal/contour. https://github.com/contour-terminal/contour/issues/100 and other modern unicode focused attempts to update the terminal world

contour : a terminal application

I have my eyes on this though.

I am working on a Terminal Emulator (cross platform, GPU accelerated, all the buzz-words modern Terminal users love to see, okay, almost all). While already fully functional, using QtWidgets, I am now in progress of attempting to migrate to QML/QtQuick, and epically fail. Slowly doing progress, but truth is, I don't know much about Qt (especially QML/QtQuick) yet, and that's maybe also part of the reason for me to force myself into it, to better understand that future tech ;)

contour - OpenGL - Linux, OS/X, Windows

Some other terminal emulator developers and I have started to address at least some of the many Unicode problems that are up until now undefined behavior by creating a formal specification on how a terminal emulator should behave in a backward and forward compatible way so that app developers and users will benefit.