Triodion is a contemporary Church Slavonic font that reproduces the typeface most commonly used in liturgical books published in St. Petersburg and Moscow at the end of the 19th and beginning of the 20th century and the current editions printed in Moscow by the Publishing House of the Moscow Patriarchate.
As far as is known, Triodion was created for the Irmologion project by Vlad Dorosh as Triodion Ucs (version 1, 2003) and was then released under the LaTeX Project Public License as part of CSLTeX. Reencoded for Unicode by Aleksandr Andreev as part of the Slavonic Computing Initiative and edited, released under SIL OFL v. 1.1. Edited by Aleksandr Andreev for Google Fonts.
This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at https://openfontlicense.org/.
The font source is stored in a FontForge SFD file in the sources/ directory. All modifications should be made in FontForge, resulting in an updated SFD file. This file is then converted to UFO format by running the convert script. From terminal:
cd your/local/project/directory
./convert.sh
The font can then be built using fontmake and gftools by running:
make build
Note that this requires Python and will install all of the necessary libraries and tools into a virtualenv at venv/.
To delete the virtualenv and the results of the build, run:
make clean
To build the sample image the sits at the top of this README, run:
make images
The commands make update and make update-project-template update the repository structure and Python dependencies and should be run periodically.
Google's master repository also had a GitHub workflow for building the fonts in the cloud on push, but this seems to always fail because of incorrect dependencies, so has been disabled. Instead, built binaries are stored on GitHub in the fonts/ directory.
This font has been added to Google Fonts and is available for use in Google Docs and other cloud-based software.
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Stylistic Set 1 (ss01) changes the hyphen symbol (-) to an underscore (_), which is the default hyphenation symbol used in Synodal Church Slavonic. This can be used for software such as LibreOffice that does not support changing the default hyphenation character.
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Stylistic Alternatives (salt) are provided for the following characters:
- a short version of lowercase yat (U+0463)
- an alternative form of capital omega (U+0460)
- seven alternative forms of the Symbol for Mark's Chapter (U+1F545)
See your software's documentation about how to access these glyphs.
See the main repository and the website.