Uni-math is here!

[NanoMichael]

After a few months of coding (and struggling), finally, the Uni-math is (almost) here! 🎆

First, let me show you some screenshots to give an intuitive feel for this major update:

• emoji support

• multi-fonts support

Major changes

• Uni-math support, unlike the Plain-Old-TeX, now we just need one math font to display formulas, so the font management is really simple
• better architecture, tinyxml2 is no longer needed
• no std::wstring anymore
• support for 2877 math symbols (include alias)
• multi-fonts support
• improved debugging info

And much more I haven't listed here...

Play with the GTK demo application

Build the demo

Since I have not yet provided an executable to demonstrate this program, you can build the demo by yourself.

First, make sure you have gtkmm-3.0 and gtksourceviewmm-3.0 installed, the GTK sample application will use it to show a simple GUI. Then use cmake to build it:

mkdir build && cd build && cmake .. && make -j8

also, you can build it with meson:

meson setup builddir && cd builddir && meson compile

Generate clm data file

The clm data file stores the font metrics and other OTF font information to layout math formulas. This program provides a script located in folder prebuilt to generate a clm data file from an OTF font. First, make sure you have fontforge installed, then run the following command:

fontforge -lang=py -script otf2clm.py \
  path/to/math/font \ #1
  true \ #2
  path/to/save/clm #3

• argument 1: specifies the file path of the OTF font to be parsed
• argument 2: specifies if the OTF font is a math font
• argument 3: specifies the path to save the generated clm data file

You can download XITS from here, and latin-modern math from here.

Run the demo

After all works done, you can run the demo application now:

./LaTeX \
  -mathfont=path/to/math/font \ #1
  -clm=path/to/clm/data/file \ #2
  -samples=path/to/samples/file #3

• argument 1: specifies the math font file to display formulas
• argument 2: specifies the clm data file to layout the formulas
• argument 3: specifies the file containing various samples, you can use ./res/SAMPLES.tex

Switch font

You can add math font via:

\addmathfont{% font name
  xits
}{% font file path
  font/file/path
}{% clm data file path
  clm/data/file/path
}

And switch font via:

\mathversion{xits}
% formulas below will use the xits font

And the logo

I've designed the logo shown below, but I'm not satisfied with it... Any suggestions?

[sp1ritCS]

have you seen the comment I made on commit 31283e1?

31283e1#r56210140

[NanoMichael]

done by commit ef33620 🎆

[sp1ritCS]

thanks <3

could you also bump the version from 0.0.4 to 0.1.0 (or maybe even 1.0.0), given that this contains fairly major changes?

[NanoMichael]

I'm planning to bump the version from 0.0.4 to 1.0.0 (since it's a huge update), but some works need to be done. First let me finish this announcement 😄

[sp1ritCS]

So, after playing with it for a while, I've noticed a few things.

documentation & invoke params

I assume this is something you are aware of, but the parser you use for launch parameter fails to parse is incorrect (value ends up being the key) cause it to throw tex:ex_file_not_found (or similar). Consider using gnu getopts instead.

Additionally a bit of documentation would be useful to understand what clm and mathfont is.

displaystyle

clm used to default to displaystyle for equations. it doesn't do so anymore
In order to get that behaviour in LaTeX I'd have to add \everymath{\displaystyle}. However that isn't possible with clm because it doesn't support \everymath.

also clm segfaults when nothing follows \displaystyle. (this behaviour is also present in current clm)

fallback fonts

Do you intend to ship a fallback font with clm in case an application just wants to render latex without the need to manage a custom font?

[sp1ritCS]

I'll add a function to config the default style. I can't reproduce the segfaults with \displaystyle, could you provide an example?

Ah, I see this only occurs when having it wrapped in $. Due to how NoteKit's parser for mardown LaTeX snippets work, these are always included.

Giving the demo application $\displaystyle$ it'll segfault too

[NanoMichael]

OK... I probably get the cause now... I'll fix it later

[NanoMichael]

\everymath now supported via commit 01b3ca6, and the segfaults when parsing $\displaystyle$ is fixed by commit cc28e8d

[NanoMichael]

Ummm, I've forgotten the return statement... fixed by 5a418e3

[sp1ritCS]

yeah, I just wanted to test it but it segfaulted ._.

Edit: but now it works 🚀

[LyesSaadi]

OMG, I'm in awe of the first image there, so amazing yet so cursed.

On another note, good job on doing that O.o ! That should have been such an immense amount of work 👏 🎉 !