Beziers provides a variety of classes for constructing, manipulating and drawing Bezier curves and paths. Principally designed for font design software, it allows you to join, split, offset, and perform many other operations on paths.

Nototools is a Python package containing Python scripts used to maintain the Noto Fonts project.

The Adobe Font Development Kit for OpenType (AFDKO) is a set of tools for building OpenType font (OTF) files from PostScript and TrueType font data. It includes the following commands:

buildcff2vf

Assemble a CFF2 variable font from a .designspace file.

buildmasterotfs

Build master source OpenType/CFF fonts from a .designspace file and UFO master source fonts.

charplot

dtdigiplotdtfontplotdtfontsetplotdthintplotdtwaterfallplot

Aliases for the corresponding options of the proofpdf command.

checkoutlinesufo

Perform outline quality checks. It can also remove path overlaps.

comparefamily

Look in a specific directory, examine and report on all the OpenType fonts found.

type1

dtdetype1

Compile and decompile, respectively, a Type 1 font to and from a plain-text representation.

makeinstancesufo

Generate UFO font instances from a set of master UFO fonts.

makeotfexe

Read all the font data and build the final OpenType font.

makeotf

This command can be used to prepare the input files needed by makeotfexe.

mergefonts

Merge one or more fonts into a parent font.

otc2otf

Extract all OpenType fonts from the parent OpenType Collection font.

otf2otc

Build an OpenType Collection font file from two or more OpenType font files.

otf2ttf

Converts OpenType-CFF fonts to TrueType.

rotatefont

Apply a Postscript transform matrix to the source font files.

sfntdiff

Low-level comparison of two OpenType font files.

sfntedit

Support table-editing, listing, and checksumming options on sfnt-formatted files such as OpenType Format (OTF) or TrueType.

spot

Dump sfnt data from plain files or Macintosh resource files.

ttfcomponentizer

Take in a TrueType font and look for a UFO font stored in the same directory. Use the UFO's components data to compose matching TrueType glyphs.

ttfdecomponentizer

Take in a TrueType font and decompose any composite glyphs into simple glyphs.

ttxn

Make a normalized dump of the font, or of selected tables.

tx

The tx (Type eXchange) is a test harness for the CoreType libraries but also provides many useful font conversion and analysis facilities.

This package provides a tool that can be used to make font samples that show coverage of the font and are similar in appearance to Unicode Charts. It was developed for use with DejaVu Fonts project.

This Python package processes and generates instances for UFO files, glyphs and other data. It can, among other things:

• Collect source materials.

• Provide mutators for specific glyphs, font info, kerning so that other tools can generate partial instances.

• Support designspace format 4 with layers.

• Apply avar-like designspace bending.

• Apply rules.

• Generate actual UFO instances in formats 2 and 3.

• Round geometry as requested.

statmake takes a user-written Stylespace that defines OpenType STAT information for an entire font family and then (potentially subsets and) applies it to a specific variable font. This spares users from having to deal with raw TTX dumps and juggling with nameIDs.

This package provides a CFF subroutinizer for fontTools.

The OpenType Sanitizer (OTS) parses and serializes OpenType files (OTF, TTF) and WOFF and WOFF2 font files, validating them and sanitizing them as it goes.

Potrace is a tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image. The input is a bitmap (PBM, PGM, PPM, or BMP format), and the default output is an encapsulated PostScript file (EPS). A typical use is to create EPS files from scanned data, such as company or university logos, handwritten notes, etc. The resulting image is not "jaggy" like a bitmap, but smooth. It can then be rendered at any resolution.

FontForge allows you to create and modify postscript, truetype and opentype fonts. You can save fonts in many different outline formats, and generate bitmaps.

The Adobe Font Development Kit for OpenType (AFDKO) is a set of tools for building OpenType font (OTF) files from PostScript and TrueType font data. It includes the following commands:

buildcff2vf

Assemble a CFF2 variable font from a .designspace file.

buildmasterotfs

Build master source OpenType/CFF fonts from a .designspace file and UFO master source fonts.

charplot

dtdigiplotdtfontplotdtfontsetplotdthintplotdtwaterfallplot

Aliases for the corresponding options of the proofpdf command.

checkoutlinesufo

Perform outline quality checks. It can also remove path overlaps.

comparefamily

Look in a specific directory, examine and report on all the OpenType fonts found.

type1

dtdetype1

Compile and decompile, respectively, a Type 1 font to and from a plain-text representation.

makeinstancesufo

Generate UFO font instances from a set of master UFO fonts.

makeotfexe

Read all the font data and build the final OpenType font.

makeotf

This command can be used to prepare the input files needed by makeotfexe.

mergefonts

Merge one or more fonts into a parent font.

otc2otf

Extract all OpenType fonts from the parent OpenType Collection font.

otf2otc

Build an OpenType Collection font file from two or more OpenType font files.

otf2ttf

Converts OpenType-CFF fonts to TrueType.

rotatefont

Apply a Postscript transform matrix to the source font files.

sfntdiff

Low-level comparison of two OpenType font files.

sfntedit

Support table-editing, listing, and checksumming options on sfnt-formatted files such as OpenType Format (OTF) or TrueType.

spot

Dump sfnt data from plain files or Macintosh resource files.

ttfcomponentizer

Take in a TrueType font and look for a UFO font stored in the same directory. Use the UFO's components data to compose matching TrueType glyphs.

ttfdecomponentizer

Take in a TrueType font and decompose any composite glyphs into simple glyphs.

ttxn

Make a normalized dump of the font, or of selected tables.

tx

The tx (Type eXchange) is a test harness for the CoreType libraries but also provides many useful font conversion and analysis facilities.

Gforth is a fast and portable implementation of the ANSI Forth language. It includes an editing mode for Emacs and an interpreter featuring completion and history. A generic virtual machine environment, vmgen, is also included.

SmithForth is an implementation of the Forth programming language for x86-64 desktop computers. SmithForth is a text interpreter that runs in a Linux text console.

FreeForth2 offers a lightweight Forth for x86 GNU/Linux that deftly blends assembly and Forth.

test-drive is a procedural unit testing framework for Fortran.

This library implements an electronegativity equilibration model to calculate partial charges used in the DFT-D4 model.

This library provides an implementation of TOML data serialization and deserialization in Fortran.

This package contains a Fortran interface to obtain molecular geometries used for testing.

mctc-lib (modular computation tool chain library) is a Fortran library for operating on molecular structures and reading and writing common geometry file formats.

This library provides an implementation of the DFT-D4 dispersion correction with both a Fortran and a C interface.

This library provides an implementation of the https://www.chemie.uni-bonn.de/grimme/de/software/dft-d3/ dispersion correction.

ForUtils is a modern Fortran utility library that provides essential tools for scientific computing and data processing. It offers Python-like convenience functions and object-oriented interfaces for common programming tasks in Fortran 2003/2008 programs.

Key Features:

• ArrayUtils - find (minimal/maximal) index of an element in an array

• FileUtils - classes for handling file access, python-like loadtxt/savetxt functions

• IniObjects - read/write name=value configuration files with inheritance, array and default value support

• MatrixUtils - read/write matrices and interface to some BLAS/LAPACK routines

• MiscUtils - utility functions for optional arguments

• MpiUtils - wrappers for MPI-routines to compile with(out) MPI library

• ObjectLists - lists of arbitrary objects including specializations for vectors

• RandUtils - some functions to generate random numbers

• RangeUtils - maintain sets of equally spaced intervals, e.g. for integration ranges

• StringUtils - utilities for strings, like concat of distinct types a.s.o.

File::Basedir can be used to find directories and files as specified by the Freedesktop.org Base Directory Specification. This specifications gives a mechanism to locate directories for configuration, application data and cache data.

This package provides an xdg-desktop-portal backend for Hyprland.