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What is this?
~~~~~~~~~~~~~
| fontTools is a library for manipulating fonts, written in Python. The
project includes the TTX tool, that can convert TrueType and OpenType
fonts to and from an XML text format, which is also called TTX. It
supports TrueType, OpenType, AFM and to an extent Type 1 and some
Mac-specific formats. The project has an `MIT open-source
licence <LICENSE>`__.
| Among other things this means you can use it free of charge.
`User documentation <https://fonttools.readthedocs.io/en/latest/>`_ and
`developer documentation <https://fonttools.readthedocs.io/en/latest/developer.html>`_
are available at `Read the Docs <https://fonttools.readthedocs.io/>`_.
Installation
~~~~~~~~~~~~
FontTools requires `Python <http://www.python.org/download/>`__ 3.8
or later. We try to follow the same schedule of minimum Python version support as
NumPy (see `NEP 29 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__).
The package is listed in the Python Package Index (PyPI), so you can
install it with `pip <https://pip.pypa.io>`__:
.. code:: sh
pip install fonttools
If you would like to contribute to its development, you can clone the
repository from GitHub, install the package in 'editable' mode and
modify the source code in place. We recommend creating a virtual
environment, using `virtualenv <https://virtualenv.pypa.io>`__ or
Python 3 `venv <https://docs.python.org/3/library/venv.html>`__ module.
.. code:: sh
# download the source code to 'fonttools' folder
git clone https://github.com/fonttools/fonttools.git
cd fonttools
# create new virtual environment called e.g. 'fonttools-venv', or anything you like
python -m virtualenv fonttools-venv
# source the `activate` shell script to enter the environment (Unix-like); to exit, just type `deactivate`
. fonttools-venv/bin/activate
# to activate the virtual environment in Windows `cmd.exe`, do
fonttools-venv\Scripts\activate.bat
# install in 'editable' mode
pip install -e .
Optional Requirements
---------------------
The ``fontTools`` package currently has no (required) external dependencies
besides the modules included in the Python Standard Library.
However, a few extra dependencies are required by some of its modules, which
are needed to unlock optional features.
The ``fonttools`` PyPI distribution also supports so-called "extras", i.e. a
set of keywords that describe a group of additional dependencies, which can be
used when installing via pip, or when specifying a requirement.
For example:
.. code:: sh
pip install fonttools[ufo,lxml,woff,unicode]
This command will install fonttools, as well as the optional dependencies that
are required to unlock the extra features named "ufo", etc.
- ``Lib/fontTools/misc/etree.py``
The module exports a ElementTree-like API for reading/writing XML files, and
allows to use as the backend either the built-in ``xml.etree`` module or
`lxml <https://lxml.de>`__. The latter is preferred whenever present,
as it is generally faster and more secure.
*Extra:* ``lxml``
- ``Lib/fontTools/ufoLib``
Package for reading and writing UFO source files; it requires:
* `fs <https://pypi.org/pypi/fs>`__: (aka ``pyfilesystem2``) filesystem
abstraction layer.
* `enum34 <https://pypi.org/pypi/enum34>`__: backport for the built-in ``enum``
module (only required on Python < 3.4).
*Extra:* ``ufo``
- ``Lib/fontTools/ttLib/woff2.py``
Module to compress/decompress WOFF 2.0 web fonts; it requires:
* `brotli <https://pypi.python.org/pypi/Brotli>`__: Python bindings of
the Brotli compression library.
*Extra:* ``woff``
- ``Lib/fontTools/ttLib/sfnt.py``
To better compress WOFF 1.0 web fonts, the following module can be used
instead of the built-in ``zlib`` library:
* `zopfli <https://pypi.python.org/pypi/zopfli>`__: Python bindings of
the Zopfli compression library.
*Extra:* ``woff``
- ``Lib/fontTools/unicode.py``
To display the Unicode character names when dumping the ``cmap`` table
with ``ttx`` we use the ``unicodedata`` module in the Standard Library.
The version included in there varies between different Python versions.
To use the latest available data, you can install:
* `unicodedata2 <https://pypi.python.org/pypi/unicodedata2>`__:
``unicodedata`` backport for Python 3.x updated to the latest Unicode
version 15.0.
*Extra:* ``unicode``
- ``Lib/fontTools/varLib/interpolatable.py``
Module for finding wrong contour/component order between different masters.
It requires one of the following packages in order to solve the so-called
"minimum weight perfect matching problem in bipartite graphs", or
the Assignment problem:
* `scipy <https://pypi.python.org/pypi/scipy>`__: the Scientific Library
for Python, which internally uses `NumPy <https://pypi.python.org/pypi/numpy>`__
arrays and hence is very fast;
* `munkres <https://pypi.python.org/pypi/munkres>`__: a pure-Python
module that implements the Hungarian or Kuhn-Munkres algorithm.
To plot the results to a PDF or HTML format, you also need to install:
* `pycairo <https://pypi.org/project/pycairo/>`__: Python bindings for the
Cairo graphics library. Note that wheels are currently only available for
Windows, for other platforms see pycairo's `installation instructions
<https://pycairo.readthedocs.io/en/latest/getting_started.html>`__.
*Extra:* ``interpolatable``
- ``Lib/fontTools/varLib/plot.py``
Module for visualizing DesignSpaceDocument and resulting VariationModel.
* `matplotlib <https://pypi.org/pypi/matplotlib>`__: 2D plotting library.
*Extra:* ``plot``
- ``Lib/fontTools/misc/symfont.py``
Advanced module for symbolic font statistics analysis; it requires:
* `sympy <https://pypi.python.org/pypi/sympy>`__: the Python library for
symbolic mathematics.
*Extra:* ``symfont``
- ``Lib/fontTools/t1Lib.py``
To get the file creator and type of Macintosh PostScript Type 1 fonts
on Python 3 you need to install the following module, as the old ``MacOS``
module is no longer included in Mac Python:
* `xattr <https://pypi.python.org/pypi/xattr>`__: Python wrapper for
extended filesystem attributes (macOS platform only).
*Extra:* ``type1``
- ``Lib/fontTools/ttLib/removeOverlaps.py``
Simplify TrueType glyphs by merging overlapping contours and components.
* `skia-pathops <https://pypi.python.org/pypy/skia-pathops>`__: Python
bindings for the Skia library's PathOps module, performing boolean
operations on paths (union, intersection, etc.).
*Extra:* ``pathops``
- ``Lib/fontTools/pens/cocoaPen.py`` and ``Lib/fontTools/pens/quartzPen.py``
Pens for drawing glyphs with Cocoa ``NSBezierPath`` or ``CGPath`` require:
* `PyObjC <https://pypi.python.org/pypi/pyobjc>`__: the bridge between
Python and the Objective-C runtime (macOS platform only).
- ``Lib/fontTools/pens/qtPen.py``
Pen for drawing glyphs with Qt's ``QPainterPath``, requires:
* `PyQt5 <https://pypi.python.org/pypi/PyQt5>`__: Python bindings for
the Qt cross platform UI and application toolkit.
- ``Lib/fontTools/pens/reportLabPen.py``
Pen to drawing glyphs as PNG images, requires:
* `reportlab <https://pypi.python.org/pypi/reportlab>`__: Python toolkit
for generating PDFs and graphics.
- ``Lib/fontTools/pens/freetypePen.py``
Pen to drawing glyphs with FreeType as raster images, requires:
* `freetype-py <https://pypi.python.org/pypi/freetype-py>`__: Python binding
for the FreeType library.
- ``Lib/fontTools/ttLib/tables/otBase.py``
Use the Harfbuzz library to serialize GPOS/GSUB using ``hb_repack`` method, requires:
* `uharfbuzz <https://pypi.python.org/pypi/uharfbuzz>`__: Streamlined Cython
bindings for the harfbuzz shaping engine
*Extra:* ``repacker``
How to make a new release
~~~~~~~~~~~~~~~~~~~~~~~~~
1) Update ``NEWS.rst`` with all the changes since the last release. Write a
changelog entry for each PR, with one or two short sentences summarizing it,
as well as links to the PR and relevant issues addressed by the PR. Do not
put a new title, the next command will do it for you.
2) Use semantic versioning to decide whether the new release will be a 'major',
'minor' or 'patch' release. It's usually one of the latter two, depending on
whether new backward compatible APIs were added, or simply some bugs were fixed.
3) From inside a venv, first do ``pip install -r dev-requirements.txt``, then run
the ``python setup.py release`` command from the tip of the ``main`` branch.
By default this bumps the third or 'patch' digit only, unless you pass ``--major``
or ``--minor`` to bump respectively the first or second digit.
This bumps the package version string, extracts the changes since the latest
version from ``NEWS.rst``, and uses that text to create an annotated git tag
(or a signed git tag if you pass the ``--sign`` option and your git and Github
account are configured for `signing commits <https://docs.github.com/en/github/authenticating-to-github/managing-commit-signature-verification/signing-commits>`__
using a GPG key).
It also commits an additional version bump which opens the main branch for
the subsequent developmental cycle
4) Push both the tag and commit to the upstream repository, by running the command
``git push --follow-tags``. Note: it may push other local tags as well, be
careful.
5) Let the CI build the wheel and source distribution packages and verify both
get uploaded to the Python Package Index (PyPI).
6) [Optional] Go to fonttools `Github Releases <https://github.com/fonttools/fonttools/releases>`__
page and create a new release, copy-pasting the content of the git tag
message. This way, the release notes are nicely formatted as markdown, and
users watching the repo will get an email notification. One day we shall
automate that too.
Acknowledgements
~~~~~~~~~~~~~~~~
In alphabetical order:
aschmitz, Olivier Berten, Samyak Bhuta, Erik van Blokland, Petr van Blokland,
Jelle Bosma, Sascha Brawer, Tom Byrer, Antonio Cavedoni, Frédéric Coiffier,
Vincent Connare, David Corbett, Simon Cozens, Dave Crossland, Simon Daniels,
Peter Dekkers, Behdad Esfahbod, Behnam Esfahbod, Hannes Famira, Sam Fishman,
Matt Fontaine, Takaaki Fuji, Rob Hagemans, Yannis Haralambous, Greg Hitchcock,
Jeremie Hornus, Khaled Hosny, John Hudson, Denis Moyogo Jacquerye, Jack Jansen,
Tom Kacvinsky, Jens Kutilek, Antoine Leca, Werner Lemberg, Tal Leming, Peter
Lofting, Cosimo Lupo, Olli Meier, Masaya Nakamura, Dave Opstad, Laurence Penney,
Roozbeh Pournader, Garret Rieger, Read Roberts, Colin Rofls, Guido van Rossum,
Just van Rossum, Andreas Seidel, Georg Seifert, Chris Simpkins, Miguel Sousa,
Adam Twardoch, Adrien Tétar, Vitaly Volkov, Paul Wise.
Copyrights
~~~~~~~~~~
| Copyright (c) 1999-2004 Just van Rossum, LettError
(just@letterror.com)
| See `LICENSE <LICENSE>`__ for the full license.
Copyright (c) 2000 BeOpen.com. All Rights Reserved.
Copyright (c) 1995-2001 Corporation for National Research Initiatives.
All Rights Reserved.
Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam. All
Rights Reserved.
Have fun!
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Changelog
~~~~~~~~~
4.56.0 (released 2025-02-07)
----------------------------
- [varStore] Sort the input todo list with the same sorting key used for the opimizer's output (#3767).
- [otData] Fix DeviceTable's ``DeltaValue`` repeat value which caused a crash after importing from XML and then compiling a GPOS containing Device tables (#3758).
- [feaLib] Make ``FeatureLibError`` pickleable, so client can e.g. use feaLib to can compile features in parallel with multiprocessing (#3762).
- [varLib/gvar] Removed workaround for old, long-fixed macOS bug about composite glyphs with all zero deltas (#1381, #1788).
- [Docs] Updated ttLib documentation, beefed up TTFont and TTGlyphSet explanations (#3720).
4.55.8 (released 2025-01-29)
----------------------------
- [MetaTools] Fixed bug in buildUCD.py script whereby the first non-header line of some UCD text file was being skipped. This affected in particular the U+00B7 (MIDDLE DOT) entry of ScriptExtensions.txt (#3756).
4.55.7 (released 2025-01-28)
----------------------------
- Shorten the changelog included in PyPI package description to accommodate maximum length limit imposed by Azure DevOps. No actual code changes since v4.55.6 (#3754).
4.55.6 (released 2025-01-24)
----------------------------
- [glyf] Fixed regression introduced in 4.55.5 when computing bounds of nested composite glyphs with transformed components (#3752).
4.55.5 (released 2025-01-23)
----------------------------
- [glyf] Fixed recalcBounds of transformed components with unrounded coordinates (#3750).
- [feaLib] Allow duplicate script/language statements (#3749).
4.55.4 (released 2025-01-21)
----------------------------
- [bezierTools] Fixed ``splitCubicAtT`` sometimes not returning identical start/end points as result of numerical precision (#3742, #3743).
- [feaLib/ast] Fixed docstring of ``AlternateSubstStatement`` (#3735).
- [transform] Typing fixes (#3734).
4.55.3 (released 2024-12-10)
----------------------------
- [Docs] fill out ttLib table section [#3716]
- [feaLib] More efficient inline format 4 lookups [#3726]
4.55.2 (released 2024-12-05)
----------------------------
- [Docs] update Sphinx config (#3712)
- [designspaceLib] Allow axisOrdering to be set to zero (#3715)
- [feaLib] Don’t modify variable anchors in place (#3717)
4.55.1 (released 2024-12-02)
----------------------------
- [ttGlyphSet] Support VARC CFF2 fonts (#3683)
- [DecomposedTransform] Document and implement always skewY == 0 (#3697)
- [varLib] "Fix" cython iup issue? (#3704)
- Cython minor refactor (#3705)
4.55.0 (released 2024-11-14)
----------------------------
- [cffLib.specializer] Adjust stack use calculation (#3689)
- [varLib] Lets not add mac names if the rest of name doesn't have them (#3688)
- [ttLib.reorderGlyphs] Update CFF table charstrings and charset (#3682)
- [cffLib.specializer] Add cmdline to specialize a CFF2 font (#3675, #3679)
- [CFF2] Lift uint16 VariationStore.length limitation (#3674)
- [subset] consider variation selectors subsetting cmap14 (#3672)
- [varLib.interpolatable] Support CFF2 fonts (#3670)
- Set isfinal to true in XML parser for proper resource cleanup (#3669)
- [removeOverlaps] Fix CFF CharString width (#3659)
- [glyf] Add optimizeSize option (#3657)
- Python 3.13 support (#3656)
- [TupleVariation] Optimize for loading speed, not size (#3650, #3653)
4.54.1 (released 2024-09-24)
----------------------------
- [unicodedata] Update to Unicode 16
- [subset] Escape ``\\`` in doc string
4.54.0 (released 2024-09-23)
----------------------------
- [Docs] Small docs cleanups by @n8willis (#3611)
- [Docs] cleanup code blocks by @n8willis (#3627)
- [Docs] fix Sphinx builds by @n8willis (#3625)
- [merge] Minor fixes to documentation for merge by @drj11 (#3588)
- [subset] Small tweaks to pyftsubset documentation by @RoelN (#3633)
- [Tests] Do not require fonttools command to be available by @behdad (#3612)
- [Tests] subset_test: add failing test to reproduce issue #3616 by @anthrotype (#3622)
- [ttLib] NameRecordVisitor: include whole sequence of character variants' UI labels, not just the first by @anthrotype (#3617)
- [varLib.avar] Reconstruct mappings from binary by @behdad (#3598)
- [varLib.instancer] Fix visual artefacts with partial L2 instancing by @Hoolean (#3635)
- [varLib.interpolatable] Support discrete axes in .designspace by @behdad (#3599)
- [varLib.models] By default, assume OpenType-like normalized space by @behdad (#3601)
4.53.1 (released 2024-07-05)
----------------------------
- [feaLib] Improve the sharing of inline chained lookups (#3559)
- [otlLib] Correct the calculation of OS/2.usMaxContext with reversed chaining contextual single substitutions (#3569)
- [misc.visitor] Visitors search the inheritance chain of objects they are visiting (#3581)
4.53.0 (released 2024-05-31)
----------------------------
- [ttLib.removeOverlaps] Support CFF table to aid in downconverting CFF2 fonts (#3528)
- [avar] Fix crash when accessing not-yet-existing attribute (#3550)
- [docs] Add buildMathTable to otlLib.builder documentation (#3540)
- [feaLib] Allow UTF-8 with BOM when reading features (#3495)
- [SVGPathPen] Revert rounding coordinates to two decimal places by default (#3543)
- [varLib.instancer] Refix output filename decision-making (#3545, #3544, #3548)
4.52.4 (released 2024-05-27)
----------------------------
- [varLib.cff] Restore and deprecate convertCFFtoCFF2 that was removed in 4.52.0
release as it is used by downstream projects (#3535).
4.52.3 (released 2024-05-27)
----------------------------
- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file
which caused the upload to PyPI to fail for 4.52.2. No other code changes.
4.52.2 (released 2024-05-27)
----------------------------
- [varLib.interpolatable] Ensure that scipy/numpy output is JSON-serializable
(#3522, #3526).
- [housekeeping] Regenerate table lists, to fix pyinstaller packaging of the new
``VARC`` table (#3531, #3529).
- [cffLib] Make CFFToCFF2 and CFF2ToCFF more robust (#3521, #3525).
4.52.1 (released 2024-05-24)
----------------------------
- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file
which caused the upload to PyPI to fail for 4.52.0. No other code changes.
4.52.0 (released 2024-05-24)
----------------------------
- Added support for the new ``VARC`` (Variable Composite) table that is being
proposed to OpenType spec (#3395). For more info:
https://github.com/harfbuzz/boring-expansion-spec/blob/main/VARC.md
- [ttLib.__main__] Fixed decompiling all tables (90fed08).
- [feaLib] Don't reference the same lookup index multiple times within the same
feature record, it is only applied once anyway (#3520).
- [cffLib] Moved methods to desubroutinize, remove hints and unused subroutines
from subset module to cffLib (#3517).
- [varLib.instancer] Added support for partial-instancing CFF2 tables! Also, added
method to down-convert from CFF2 to CFF 1.0, and CLI entry points to convert
CFF<->CFF2 (#3506).
- [subset] Prune unused user name IDs even with --name-IDs='*' (#3410).
- [ttx] use GNU-style getopt to intermix options and positional arguments (#3509).
- [feaLib.variableScalar] Fixed ``value_at_location()`` method (#3491)
- [psCharStrings] Shorten output of ``encodeFloat`` (#3492).
- [bezierTools] Fix infinite-recursion in ``calcCubicArcLength`` (#3502).
- [avar2] Implement ``avar2`` support in ``TTFont.getGlyphSet()`` (#3473).
4.51.0 (released 2024-04-05)
----------------------------
- [ttLib] Optimization on loading aux fields (#3464).
- [ttFont] Add reorderGlyphs (#3468).
4.50.0 (released 2024-03-15)
----------------------------
- [pens] Added decomposing filter pens that draw components as regular contours (#3460).
- [instancer] Drop explicit no-op axes from TupleVariations (#3457).
- [cu2qu/ufo] Return set of modified glyph names from fonts_to_quadratic (#3456).
4.49.0 (released 2024-02-15)
----------------------------
- [otlLib] Add API for building ``MATH`` table (#3446)
4.48.1 (released 2024-02-06)
----------------------------
- Fixed uploading wheels to PyPI, no code changes since v4.48.0.
4.48.0 (released 2024-02-06)
----------------------------
- [varLib] Do not log when there are no OTL tables to be merged.
- [setup.py] Do not restrict lxml<5 any more, tests pass just fine with lxml>=5.
- [feaLib] Remove glyph and class names length restrictions in FEA (#3424).
- [roundingPens] Added ``transformRoundFunc`` parameter to the rounding pens to allow
for custom rounding of the components' transforms (#3426).
- [feaLib] Keep declaration order of ligature components within a ligature set, instead
of sorting by glyph name (#3429).
- [feaLib] Fixed ordering of alternates in ``aalt`` lookups, following the declaration
order of feature references within the ``aalt`` feature block (#3430).
- [varLib.instancer] Fixed a bug in the instancer's IUP optimization (#3432).
- [sbix] Support sbix glyphs with new graphicType "flip" (#3433).
- [svgPathPen] Added ``--glyphs`` option to dump the SVG paths for the named glyphs
in the font (0572f78).
- [designspaceLib] Added "description" attribute to ``<mappings>`` and ``<mapping>``
elements, and allow multiple ``<mappings>`` elements to group ``<mapping>`` elements
that are logically related (#3435, #3437).
- [otlLib] Correctly choose the most compact GSUB contextual lookup format (#3439).
4.47.2 (released 2024-01-11)
----------------------------
Minor release to fix uploading wheels to PyPI.
4.47.1 (released 2024-01-11)
----------------------------
- [merge] Improve help message and add standard command line options (#3408)
- [otlLib] Pass ``ttFont`` to ``name.addName`` in ``buildStatTable`` (#3406)
- [featureVars] Re-use ``FeatureVariationRecord``'s when possible (#3413)
4.47.0 (released 2023-12-18)
----------------------------
- [varLib.models] New API for VariationModel: ``getMasterScalars`` and
``interpolateFromValuesAndScalars``.
- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,
add a Summary page in the front, and an Index and Table-of-Contents in the back.
Change the page size to Letter.
- [Docs/designspaceLib] Defined a new ``public.fontInfo`` lib key, not used anywhere yet (#3358).
4.46.0 (released 2023-12-02)
----------------------------
- [featureVars] Allow to register the same set of substitution rules to multiple features.
The ``addFeatureVariations`` function can now take a list of featureTags; similarly, the
lib key 'com.github.fonttools.varLib.featureVarsFeatureTag' can now take a
comma-separateed string of feature tags (e.g. "salt,ss01") instead of a single tag (#3360).
- [featureVars] Don't overwrite GSUB FeatureVariations, but append new records to it
for features which are not already there. But raise ``VarLibError`` if the feature tag
already has feature variations associated with it (#3363).
- [varLib] Added ``addGSUBFeatureVariations`` function to add GSUB Feature Variations
to an existing variable font from rules defined in a DesignSpace document (#3362).
- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,
a new test for "underweight" glyphs. The new test reports quite a few false-positives
though. Please send feedback.
4.45.1 (released 2023-11-23)
----------------------------
- [varLib.interpolatable] Various bugfixes and improvements, better reporting, reduced
false positives.
- [ttGlyphSet] Added option to not recalculate glyf bounds (#3348).
4.45.0 (released 2023-11-20)
----------------------------
- [varLib.interpolatable] Vastly improved algorithms. Also available now is ``--pdf``
and ``--html`` options to generate a PDF or HTML report of the interpolation issues.
The PDF/HTML report showcases the problematic masters, the interpolated broken
glyph, as well as the proposed fixed version.
4.44.3 (released 2023-11-15)
----------------------------
- [subset] Only prune codepage ranges for OS/2.version >= 1, ignore otherwise (#3334).
- [instancer] Ensure hhea vertical metrics stay in sync with OS/2 ones after instancing
MVAR table containing 'hasc', 'hdsc' or 'hlgp' tags (#3297).
4.44.2 (released 2023-11-14)
----------------------------
- [glyf] Have ``Glyph.recalcBounds`` skip empty components (base glyph with no contours)
when computing the bounding box of composite glyphs. This simply restores the existing
behavior before some changes were introduced in fonttools 4.44.0 (#3333).
4.44.1 (released 2023-11-14)
----------------------------
- [feaLib] Ensure variable mark anchors are deep-copied while building since they
get modified in-place and later reused (#3330).
- [OS/2|subset] Added method to ``recalcCodePageRanges`` to OS/2 table class; added
``--prune-codepage-ranges`` to `fonttools subset` command (#3328, #2607).
4.44.0 (released 2023-11-03)
----------------------------
- [instancer] Recalc OS/2 AvgCharWidth after instancing if default changes (#3317).
- [otlLib] Make ClassDefBuilder class order match varLib.merger's, i.e. large
classes first, then glyph lexicographic order (#3321, #3324).
- [instancer] Allow not specifying any of min:default:max values and let be filled
up with fvar's values (#3322, #3323).
- [instancer] When running --update-name-table ignore axes that have no STAT axis
values (#3318, #3319).
- [Debg] When dumping to ttx, write the embedded JSON as multi-line string with
indentation (92cbfee0d).
- [varStore] Handle > 65535 items per encoding by splitting VarData subtable (#3310).
- [subset] Handle null-offsets in MarkLigPos subtables.
- [subset] Keep East Asian spacing fatures vhal, halt, chws, vchw by default (#3305).
- [instancer.solver] Fixed case where axisDef < lower and upper < axisMax (#3304).
- [glyf] Speed up compilation, mostly around ``recalcBounds`` (#3301).
- [varLib.interpolatable] Speed it up when working on variable fonts, plus various
micro-optimizations (#3300).
- Require unicodedata2 >= 15.1.0 when installed with 'unicode' extra, contains UCD 15.1.
4.43.1 (released 2023-10-06)
----------------------------
- [EBDT] Fixed TypeError exception in `_reverseBytes` method triggered when dumping
some bitmap fonts with `ttx -z bitwise` option (#3162).
- [v/hhea] Fixed UnboundLocalError exception in ``recalc`` method when no vmtx or hmtx
tables are present (#3290).
- [bezierTools] Fixed incorrectly typed cython local variable leading to TypeError when
calling ``calcQuadraticArcLength`` (#3288).
- [feaLib/otlLib] Better error message when building Coverage table with missing glyph (#3286).
4.43.0 (released 2023-09-29)
----------------------------
- [subset] Set up lxml ``XMLParser(resolve_entities=False)`` when parsing OT-SVG documents
to prevent XML External Entity (XXE) attacks (9f61271dc):
https://codeql.github.com/codeql-query-help/python/py-xxe/
- [varLib.iup] Added workaround for a Cython bug in ``iup_delta_optimize`` that was
leading to IUP tolerance being incorrectly initialised, resulting in sub-optimal deltas
(60126435d, cython/cython#5732).
- [varLib] Added new command-line entry point ``fonttools varLib.avar`` to add an
``avar`` table to an existing VF from axes mappings in a .designspace file (0a3360e52).
- [instancer] Fixed bug whereby no longer used variation regions were not correctly pruned
after VarData optimization (#3268).
- Added support for Python 3.12 (#3283).
4.42.1 (released 2023-08-20)
----------------------------
- [t1Lib] Fixed several Type 1 issues (#3238, #3240).
- [otBase/packer] Allow sharing tables reached by different offset sizes (#3241, #3236).
- [varLib/merger] Fix Cursive attachment merging error when all anchors are NULL (#3248, #3247).
- [ttLib] Fixed warning when calling ``addMultilingualName`` and ``ttFont`` parameter was not
passed on to ``findMultilingualName`` (#3253).
4.42.0 (released 2023-08-02)
----------------------------
- [varLib] Use sentinel value 0xFFFF to mark a glyph advance in hmtx/vmtx as non
participating, allowing sparse masters to contain glyphs for variation purposes other
than {H,V}VAR (#3235).
- [varLib/cff] Treat empty glyphs in non-default masters as missing, thus not participating
in CFF2 delta computation, similarly to how varLib already treats them for gvar (#3234).
- Added varLib.avarPlanner script to deduce 'correct' avar v1 axis mappings based on
glyph average weights (#3223).
4.41.1 (released 2023-07-21)
----------------------------
- [subset] Fixed perf regression in v4.41.0 by making ``NameRecordVisitor`` only visit
tables that do contain nameID references (#3213, #3214).
- [varLib.instancer] Support instancing fonts containing null ConditionSet offsets in
FeatureVariationRecords (#3211, #3212).
- [statisticsPen] Report font glyph-average weight/width and font-wide slant.
- [fontBuilder] Fixed head.created date incorrectly set to 0 instead of the current
timestamp, regression introduced in v4.40.0 (#3210).
- [varLib.merger] Support sparse ``CursivePos`` masters (#3209).
4.41.0 (released 2023-07-12)
----------------------------
- [fontBuilder] Fixed bug in setupOS2 with default panose attribute incorrectly being
set to a dict instead of a Panose object (#3201).
- [name] Added method to ``removeUnusedNameRecords`` in the user range (#3185).
- [varLib.instancer] Fixed issue with L4 instancing (moving default) (#3179).
- [cffLib] Use latin1 so we can roundtrip non-ASCII in {Full,Font,Family}Name (#3202).
- [designspaceLib] Mark <source name="..."> as optional in docs (as it is in the code).
- [glyf-1] Fixed drawPoints() bug whereby last cubic segment becomes quadratic (#3189, #3190).
- [fontBuilder] Propagate the 'hidden' flag to the fvar Axis instance (#3184).
- [fontBuilder] Update setupAvar() to also support avar 2, fixing ``_add_avar()`` call
site (#3183).
- Added new ``voltLib.voltToFea`` submodule (originally Tiro Typeworks' "Volto") for
converting VOLT OpenType Layout sources to FEA format (#3164).
4.40.0 (released 2023-06-12)
----------------------------
- Published native binary wheels to PyPI for all the python minor versions and platform
and architectures currently supported that would benefit from this. They will include
precompiled Cython-accelerated modules (e.g. cu2qu) without requiring to compile them
from source. The pure-python wheel and source distribution will continue to be
published as always (pip will automatically chose them when no binary wheel is
available for the given platform, e.g. pypy). Use ``pip install --no-binary=fonttools fonttools``
to expliclity request pip to install from the pure-python source.
- [designspaceLib|varLib] Add initial support for specifying axis mappings and build
``avar2`` table from those (#3123).
- [feaLib] Support variable ligature caret position (#3130).
- [varLib|glyf] Added option to --drop-implied-oncurves; test for impliable oncurve
points either before or after rounding (#3146, #3147, #3155, #3156).
- [TTGlyphPointPen] Don't error with empty contours, simply ignore them (#3145).
- [sfnt] Fixed str vs bytes remnant of py3 transition in code dealing with de/compiling
WOFF metadata (#3129).
- [instancer-solver] Fixed bug when moving default instance with sparse masters (#3139, #3140).
- [feaLib] Simplify variable scalars that don’t vary (#3132).
- [pens] Added filter pen that explicitly emits closing line when lastPt != movePt (#3100).
- [varStore] Improve optimize algorithm and better document the algorithm (#3124, #3127).
Added ``quantization`` option (#3126).
- Added CI workflow config file for building native binary wheels (#3121).
- [fontBuilder] Added glyphDataFormat=0 option; raise error when glyphs contain cubic
outlines but glyphDataFormat was not explicitly set to 1 (#3113, #3119).
- [subset] Prune emptied GDEF.MarkGlyphSetsDef and remap indices; ensure GDEF is
subsetted before GSUB and GPOS (#3114, #3118).
- [xmlReader] Fixed issue whereby DSIG table data was incorrectly parsed (#3115, #2614).
- [varLib/merger] Fixed merging of SinglePos with pos=0 (#3111, #3112).
- [feaLib] Demote "Feature has not been defined" error to a warning when building aalt
and referenced feature is empty (#3110).
- [feaLib] Dedupe multiple substitutions with classes (#3105).
4.39.4 (released 2023-05-10)
----------------------------
- [varLib.interpolatable] Allow for sparse masters (#3075)
- [merge] Handle differing default/nominalWidthX in CFF (#3070)
- [ttLib] Add missing main.py file to ttLib package (#3088)
- [ttx] Fix missing composite instructions in XML (#3092)
- [ttx] Fix split tables option to work on filenames containing '%' (#3096)
- [featureVars] Process lookups for features other than rvrn last (#3099)
- [feaLib] support multiple substitution with classes (#3103)
4.39.3 (released 2023-03-28)
----------------------------
- [sbix] Fixed TypeError when compiling empty glyphs whose imageData is None, regression
was introduced in v4.39 (#3059).
- [ttFont] Fixed AttributeError on python <= 3.10 when opening a TTFont from a tempfile
SpooledTemporaryFile, seekable method only added on python 3.11 (#3052).
4.39.2 (released 2023-03-16)
----------------------------
- [varLib] Fixed regression introduced in 4.39.1 whereby an incomplete 'STAT' table
would be built even though a DesignSpace v5 did contain 'STAT' definitions (#3045, #3046).
4.39.1 (released 2023-03-16)
----------------------------
- [avar2] Added experimental support for reading/writing avar version 2 as specified in
this draft proposal: https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md
- [glifLib] Wrap underlying XML library exceptions with GlifLibError when parsing GLIFs,
and also print the name and path of the glyph that fails to be parsed (#3042).
- [feaLib] Consult avar for normalizing user-space values in ConditionSets and in
VariableScalars (#3042, #3043).
- [ttProgram] Handle string input to Program.fromAssembly() (#3038).
- [otlLib] Added a config option to emit GPOS 7 lookups, currently disabled by default
because of a macOS bug (#3034).
- [COLRv1] Added method to automatically compute ClipBoxes (#3027).
- [ttFont] Fixed getGlyphID to raise KeyError on missing glyphs instead of returning
None. The regression was introduced in v4.27.0 (#3032).
- [sbix] Fixed UnboundLocalError: cannot access local variable 'rawdata' (#3031).
- [varLib] When building VF, do not overwrite a pre-existing ``STAT`` table that was built
with feaLib from FEA feature file. Also, added support for building multiple VFs
defined in Designspace v5 from ``fonttools varLib`` script (#3024).
- [mtiLib] Only add ``Debg`` table with lookup names when ``FONTTOOLS_LOOKUP_DEBUGGING``
env variable is set (#3023).
4.39.0 (released 2023-03-06)
----------------------------
- [mtiLib] Optionally add `Debg` debug info for MTI feature builds (#3018).
- [ttx] Support reading input file from standard input using special `-` character,
similar to existing `-o -` option to write output to standard output (#3020).
- [cython] Prevent ``cython.compiled`` raise AttributeError if cython not installed
properly (#3017).
- [OS/2] Guard against ZeroDivisionError when calculating xAvgCharWidth in the unlikely
scenario no glyph has non-zero advance (#3015).
- [subset] Recompute xAvgCharWidth independently of --no-prune-unicode-ranges,
previously the two options were involuntarily bundled together (#3012).
- [fontBuilder] Add ``debug`` parameter to addOpenTypeFeatures method to add source
debugging information to the font in the ``Debg`` private table (#3008).
- [name] Make NameRecord `__lt__` comparison not fail on Unicode encoding errors (#3006).
- [featureVars] Fixed bug in ``overlayBox`` (#3003, #3005).
- [glyf] Added experimental support for cubic bezier curves in TrueType glyf table, as
outlined in glyf v1 proposal (#2988):
https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md
- Added new qu2cu module and related qu2cuPen, the reverse of cu2qu for converting
TrueType quadratic splines to cubic bezier curves (#2993).
- [glyf] Added experimental support for reading and writing Variable Composites/Components
as defined in glyf v1 spec proposal (#2958):
https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-varComposites.md.
- [pens]: Added `addVarComponent` method to pen protocols' base classes, which pens can implement
to handle varcomponents (by default they get decomposed) (#2958).
- [misc.transform] Added DecomposedTransform class which implements an affine transformation
with separate translate, rotation, scale, skew, and transformation-center components (#2598)
- [sbix] Ensure Glyph.referenceGlyphName is set; fixes error after dumping and
re-compiling sbix table with 'dupe' glyphs (#2984).
- [feaLib] Be cleverer when merging chained single substitutions into same lookup
when they are specified using the inline notation (#2150, #2974).
- [instancer] Clamp user-inputted axis ranges to those of fvar (#2959).
- [otBase/subset] Define ``__getstate__`` for BaseTable so that a copied/pickled 'lazy'
object gets its own OTTableReader to read from; incidentally fixes a bug while
subsetting COLRv1 table containing ClipBoxes on python 3.11 (#2965, #2968).
- [sbix] Handle glyphs with "dupe" graphic type on compile correctly (#2963).
- [glyf] ``endPointsOfContours`` field should be unsigned! Kudos to behdad for
spotting one of the oldest bugs in FT. Probably nobody has ever dared to make
glyphs with more than 32767 points... (#2957).
- [feaLib] Fixed handling of ``ignore`` statements with unmarked glyphs to match
makeotf behavior, which assumes the first glyph is marked (#2950).
- Reformatted code with ``black`` and enforce new code style via CI check (#2925).
- [feaLib] Sort name table entries following OT spec prescribed order in the builder (#2927).
- [cu2quPen] Add Cu2QuMultiPen that converts multiple outlines at a time in
interpolation compatible way; its methods take a list of tuples arguments
that would normally be passed to individual segment pens, and at the end it
dispatches the converted outlines to each pen (#2912).
- [reverseContourPen/ttGlyphPen] Add outputImpliedClosingLine option (#2913, #2914,
#2921, #2922, #2995).
- [gvar] Avoid expanding all glyphs unnecessarily upon compile (#2918).
- [scaleUpem] Fixed bug whereby CFF2 vsindex was scaled; it should not (#2893, #2894).
- [designspaceLib] Add DS.getAxisByTag and refactor getAxis (#2891).
- [unicodedata] map Zmth<->math in ot_tag_{to,from}_script (#1737, #2889).
- [woff2] Support encoding/decoding OVERLAP_SIMPLE glyf flags (#2576, #2884).
- [instancer] Update OS/2 class and post.italicAngle when default moved (L4)
- Dropped support for Python 3.7 which reached EOL, fontTools requires 3.8+.
- [instancer] Fixed instantiateFeatureVariations logic when a rule range becomes
default-applicable (#2737, #2880).
- [ttLib] Add main to ttFont and ttCollection that just decompile and re-compile the
input font (#2869).
- [featureVars] Insert 'rvrn' lookup at the beginning of LookupList, to work around bug
in Apple implementation of 'rvrn' feature which the spec says it should be processed
early whereas on macOS 10.15 it follows lookup order (#2140, #2867).
- [instancer/mutator] Remove 'DSIG' table if present.
- [svgPathPen] Don't close path in endPath(), assume open unless closePath() (#2089, #2865).
4.38.0 (released 2022-10-21)
----------------------------
- [varLib.instancer] Added support for L4 instancing, i.e. moving the default value of
an axis while keeping it variable. Thanks Behdad! (#2728, #2861).
It's now also possible to restrict an axis min/max values beyond the current default
value, e.g. a font wght has min=100, def=400, max=900 and you want a partial VF that
only varies between 500 and 700, you can now do that.
You can either specify two min/max values (wght=500:700), and the new default will be
set to either the minimum or maximum, depending on which one is closer to the current
default (e.g. 500 in this case). Or you can specify three values (e.g. wght=500:600:700)
to specify the new default value explicitly.
- [otlLib/featureVars] Set a few Count values so one doesn't need to compile the font
to update them (#2860).
- [varLib.models] Make extrapolation work for 2-master models as well where one master
is at the default location (#2843, #2846).
Add optional extrapolate=False to normalizeLocation() (#2847, #2849).
- [varLib.cff] Fixed sub-optimal packing of CFF2 deltas by no longer rounding them to
integer (#2838).
- [scaleUpem] Calculate numShorts in VarData after scale; handle CFF hintmasks (#2840).
4.37.4 (released 2022-09-30)
----------------------------
- [subset] Keep nameIDs used by CPAL palette entry labels (#2837).
- [varLib] Avoid negative hmtx values when creating font from variable CFF2 font (#2827).
- [instancer] Don't prune stat.ElidedFallbackNameID (#2828).
- [unicodedata] Update Scripts/Blocks to Unicode 15.0 (#2833).
4.37.3 (released 2022-09-20)
----------------------------
- Fix arguments in calls to (glyf) glyph.draw() and drawPoints(), whereby offset wasn't
correctly passed down; this fix also exposed a second bug, where lsb and tsb were not
set (#2824, #2825, adobe-type-tools/afdko#1560).
4.37.2 (released 2022-09-15)
----------------------------
- [subset] Keep CPAL table and don't attempt to prune unused color indices if OT-SVG
table is present even if COLR table was subsetted away; OT-SVG may be referencing the
CPAL table; for now we assume that's the case (#2814, #2815).
- [varLib.instancer] Downgrade GPOS/GSUB version if there are no more FeatureVariations
after instancing (#2812).
- [subset] Added ``--no-lazy`` to optionally load fonts eagerly (mostly to ease
debugging of table lazy loading, no practical effects) (#2807).
- [varLib] Avoid building empty COLR.DeltaSetIndexMap with only identity mappings (#2803).
- [feaLib] Allow multiple value record types (by promoting to the most general format)
within the same PairPos subtable; e.g. this allows variable and non variable kerning
rules to share the same subtable. This also fixes a bug whereby some kerning pairs
would become unreachable while shapiong because of premature subtable splitting (#2772, #2776).
- [feaLib] Speed up ``VarScalar`` by caching models for recurring master locations (#2798).
- [feaLib] Optionally cythonize ``feaLib.lexer``, speeds up parsing FEA a bit (#2799).
- [designspaceLib] Avoid crash when handling unbounded rule conditions (#2797).
- [post] Don't crash if ``post`` legacy format 1 is malformed/improperly used (#2786)
- [gvar] Don't be "lazy" (load all glyph variations up front) when TTFont.lazy=False (#2771).
- [TTFont] Added ``normalizeLocation`` method to normalize a location dict from the
font's defined axes space (also known as "user space") into the normalized (-1..+1)
space. It applies ``avar`` mapping if the font contains an ``avar`` table (#2789).
- [TTVarGlyphSet] Support drawing glyph instances from CFF2 variable glyph set (#2784).
- [fontBuilder] Do not error when building cmap if there are zero code points (#2785).
- [varLib.plot] Added ability to plot a variation model and set of accompaning master
values corresponding to the model's master locations into a pyplot figure (#2767).
- [Snippets] Added ``statShape.py`` script to draw statistical shape of a glyph as an
ellips (requires pycairo) (baecd88).
- [TTVarGlyphSet] implement drawPoints natively, avoiding going through
SegmentToPointPen (#2778).
- [TTVarGlyphSet] Fixed bug whereby drawing a composite glyph multiple times, its
components would shif; needed an extra copy (#2774).
4.37.1 (released 2022-08-24)
----------------------------
- [subset] Fixed regression introduced with v4.37.0 while subsetting the VarStore of
``HVAR`` and ``VVAR`` tables, whereby an ``AttributeError: subset_varidxes`` was
thrown because an apparently unused import statement (with the side-effect of
dynamically binding that ``subset_varidxes`` method to the VarStore class) had been
accidentally deleted in an unrelated PR (#2679, #2773).
- [pens] Added ``cairoPen`` (#2678).
- [gvar] Read ``gvar`` more lazily by not parsing all of the ``glyf`` table (#2771).
- [ttGlyphSet] Make ``drawPoints(pointPen)`` method work for CFF fonts as well via
adapter pen (#2770).
4.37.0 (released 2022-08-23)
----------------------------
- [varLib.models] Reverted PR #2717 which added support for "narrow tents" in v4.36.0,
as it introduced a regression (#2764, #2765). It will be restored in upcoming release
once we found a solution to the bug.
- [cff.specializer] Fixed issue in charstring generalizer with the ``blend`` operator
(#2750, #1975).
- [varLib.models] Added support for extrapolation (#2757).
- [ttGlyphSet] Ensure the newly added ``_TTVarGlyphSet`` inherits from ``_TTGlyphSet``
to keep backward compatibility with existing API (#2762).
- [kern] Allow compiling legacy kern tables with more than 64k entries (d21cfdede).
- [visitor] Added new visitor API to traverse tree of objects and dispatch based
on the attribute type: cf. ``fontTools.misc.visitor`` and ``fontTools.ttLib.ttVisitor``. Added ``fontTools.ttLib.scaleUpem`` module that uses the latter to
change a font's units-per-em and scale all the related fields accordingly (#2718,
#2755).
4.36.0 (released 2022-08-17)
----------------------------
- [varLib.models] Use a simpler model that generates narrower "tents" (regions, master
supports) whenever possible: specifically when any two axes that actively "cooperate"
(have masters at non-zero positions for both axes) have a complete set of intermediates.
The simpler algorithm produces fewer overlapping regions and behaves better with
respect to rounding at the peak positions than the generic solver, always matching
intermediate masters exactly, instead of maximally 0.5 units off. This may be useful
when 100% metrics compatibility is desired (#2218, #2717).
- [feaLib] Remove warning when about ``GDEF`` not being built when explicitly not
requested; don't build one unconditonally even when not requested (#2744, also works
around #2747).
- [ttFont] ``TTFont.getGlyphSet`` method now supports selecting a location that
represents an instance of a variable font (supports both user-scale and normalized
axes coordinates via the ``normalized=False`` parameter). Currently this only works
for TrueType-flavored variable fonts (#2738).
4.35.0 (released 2022-08-15)
----------------------------
- [otData/otConverters] Added support for 'biased' PaintSweepGradient start/end angles
to match latest COLRv1 spec (#2743).
- [varLib.instancer] Fixed bug in ``_instantiateFeatureVariations`` when at the same
time pinning one axis and restricting the range of a subsequent axis; the wrong axis
tag was being used in the latter step (as the records' axisIdx was updated in the
preceding step but looked up using the old axes order in the following step) (#2733,
#2734).
- [mtiLib] Pad script tags with space when less than 4 char long (#1727).
- [merge] Use ``'.'`` instead of ``'#'`` in duplicate glyph names (#2742).
- [gvar] Added support for lazily loading glyph variations (#2741).
- [varLib] In ``build_many``, we forgot to pass on ``colr_layer_reuse`` parameter to
the ``build`` method (#2730).
- [svgPathPen] Add a main that prints SVG for input text (6df779fd).
- [cffLib.width] Fixed off-by-one in optimized values; previous code didn't match the
code block above it (2963fa50).
- [varLib.interpolatable] Support reading .designspace and .glyphs files (via optional
``glyphsLib``).
- Compile some modules with Cython when available and building/installing fonttools
from source: ``varLib.iup`` (35% faster), ``pens.momentsPen`` (makes
``varLib.interpolatable`` 3x faster).
- [feaLib] Allow features to be built for VF without also building a GDEF table (e.g.
only build GSUB); warn when GDEF would be needed but isn't requested (#2705, 2694).
- [otBase] Fixed ``AttributeError`` when uharfbuzz < 0.23.0 and 'repack' method is
missing (32aa8eaf). Use new ``uharfbuzz.repack_with_tag`` when available (since
uharfbuzz>=0.30.0), enables table-specific optimizations to be performed during
repacking (#2724).
- [statisticsPen] By default report all glyphs (4139d891). Avoid division-by-zero
(52b28f90).
- [feaLib] Added missing required argument to FeatureLibError exception (#2693)
- [varLib.merge] Fixed error during error reporting (#2689). Fixed undefined
``NotANone`` variable (#2714).
4.34.4 (released 2022-07-07)
----------------------------
- Fixed typo in varLib/merger.py that causes NameError merging COLR glyphs
containing more than 255 layers (#2685).
4.34.3 (released 2022-07-07)
----------------------------
- [designspaceLib] Don't make up bad PS names when no STAT data (#2684)
4.34.2 (released 2022-07-06)
----------------------------
- [varStore/subset] fixed KeyError exception to do with NO_VARIATION_INDEX while
subsetting varidxes in GPOS/GDEF (a08140d).
4.34.1 (released 2022-07-06)
----------------------------
- [instancer] When optimizing HVAR/VVAR VarStore, use_NO_VARIATION_INDEX=False to avoid
including NO_VARIATION_INDEX in AdvWidthMap, RsbMap, LsbMap mappings, which would
push the VarIdx width to maximum (4bytes), which is not desirable. This also fixes
a hard crash when attempting to subset a varfont after it had been partially instanced
with use_NO_VARIATION_INDEX=True.
4.34.0 (released 2022-07-06)
----------------------------
- [instancer] Set RIBBI bits in head and OS/2 table when cutting instances and the
subfamily nameID=2 contains strings like 'Italic' or 'Bold' (#2673).
- [otTraverse] Addded module containing methods for traversing trees of otData tables
(#2660).
- [otTables] Made DeltaSetIndexMap TTX dump less verbose by omitting no-op entries
(#2660).
- [colorLib.builder] Added option to disable PaintColrLayers's reuse of layers from
LayerList (#2660).
- [varLib] Added support for merging multiple master COLRv1 tables into a variable
COLR table (#2660, #2328). Base color glyphs of same name in different masters must have
identical paint graph structure (incl. number of layers, palette indices, number
of color line stops, corresponding paint formats at each level of the graph),
but can differ in the variable fields (e.g. PaintSolid.Alpha). PaintVar* tables
are produced when this happens and a VarStore/DeltaSetIndexMap is added to the
variable COLR table. It is possible for non-default masters to be 'sparse', i.e.
omit some of the color glyphs present in the default master.
- [feaLib] Let the Parser set nameIDs 1 through 6 that were previously reserved (#2675).
- [varLib.varStore] Support NO_VARIATION_INDEX in optimizer and instancer.
- [feaLib] Show all missing glyphs at once at end of parsing (#2665).
- [varLib.iup] Rewrite force-set conditions and limit DP loopback length (#2651).
For Noto Sans, IUP time drops from 23s down to 9s, with only a slight size increase
in the final font. This basically turns the algorithm from O(n^3) into O(n).
- [featureVars] Report about missing glyphs in substitution rules (#2654).
- [mutator/instancer] Added CLI flag to --no-recalc-timestamp (#2649).
- [SVG] Allow individual SVG documents in SVG OT table to be compressed on uncompressed,
and remember that when roundtripping to/from ttx. The SVG.docList is now a list
of SVGDocument namedtuple-like dataclass containing an extra ``compressed`` field,
and no longer a bare 3-tuple (#2645).
- [designspaceLib] Check for descriptor types with hasattr() to allow custom classes
that don't inherit the default descriptors (#2634).
- [subset] Enable sharing across subtables of extension lookups for harfbuzz packing
(#2626). Updated how table packing falls back to fontTools from harfbuzz (#2668).
- [subset] Updated default feature tags following current Harfbuzz (#2637).
- [svgLib] Fixed regex for real number to support e.g. 1e-4 in addition to 1.0e-4.
Support parsing negative rx, ry on arc commands (#2596, #2611).
- [subset] Fixed subsetting SinglePosFormat2 when ValueFormat=0 (#2603).
4.33.3 (released 2022-04-26)
----------------------------
- [designspaceLib] Fixed typo in ``deepcopyExceptFonts`` method, preventing font
references to be transferred (#2600). Fixed another typo in the name of ``Range``
dataclass's ``__post_init__`` magic method (#2597).
4.33.2 (released 2022-04-22)
----------------------------
- [otBase] Make logging less verbose when harfbuzz fails to serialize. Do not exit
at the first failure but continue attempting to fix offset overflow error using
the pure-python serializer even when the ``USE_HARFBUZZ_REPACKER`` option was
explicitly set to ``True``. This is normal with fonts with relatively large
tables, at least until hb.repack implements proper table splitting.
4.33.1 (released 2022-04-22)
----------------------------
- [otlLib] Put back the ``FONTTOOLS_GPOS_COMPACT_MODE`` environment variable to fix
regression in ufo2ft (and thus fontmake) introduced with v4.33.0 (#2592, #2593).
This is deprecated and will be removed one ufo2ft gets updated to use the new
config setup.
4.33.0 (released 2022-04-21)
----------------------------
- [OS/2 / merge] Automatically recalculate ``OS/2.xAvgCharWidth`` after merging
fonts with ``fontTools.merge`` (#2591, #2538).
- [misc/config] Added ``fontTools.misc.configTools`` module, a generic configuration
system (#2416, #2439).
Added ``fontTools.config`` module, a fontTools-specific configuration
system using ``configTools`` above.
Attached a ``Config`` object to ``TTFont``.
- [otlLib] Replaced environment variable for GPOS compression level with an
equivalent option using the new config system.
- [designspaceLib] Incremented format version to 5.0 (#2436).
Added discrete axes, variable fonts, STAT information, either design- or
user-space location on instances.
Added ``fontTools.designspaceLib.split`` module to split a designspace
into sub-spaces that interpolate and that represent the variable fonts
listed in the document.
Made instance names optional and allow computing them from STAT data instead.
Added ``fontTools.designspaceLib.statNames`` module.
Allow instances to have the same location as a previously defined STAT label.
Deprecated some attributes:
``SourceDescriptor``: ``copyLib``, ``copyInfo``, ``copyGroups``, ``copyFeatures``.
``InstanceDescriptor``: ``kerning``, ``info``; ``glyphs``: use rules or sparse
sources.
For both, ``location``: use the more explicit designLocation.
Note: all are soft deprecations and existing code should keep working.
Updated documentation for Python methods and the XML format.
- [varLib] Added ``build_many`` to build several variable fonts from a single
designspace document (#2436).
Added ``fontTools.varLib.stat`` module to build STAT tables from a designspace
document.
- [otBase] Try to use the Harfbuzz Repacker for packing GSUB/GPOS tables when
``uharfbuzz`` python bindings are available (#2552). Disable it by setting the
"fontTools.ttLib.tables.otBase:USE_HARFBUZZ_REPACKER" config option to ``False``.
If the option is set explicitly to ``True`` but ``uharfbuzz`` can't be imported
or fails to serialize for any reasons, an error will be raised (ImportError or
uharfbuzz errors).
- [CFF/T2] Ensure that ``pen.closePath()`` gets called for CFF2 charstrings (#2577).
Handle implicit CFF2 closePath within ``T2OutlineExtractor`` (#2580).
4.32.0 (released 2022-04-08)
----------------------------
- [otlLib] Disable GPOS7 optimization to work around bug in Apple CoreText.
Always force Chaining GPOS8 for now (#2540).
- [glifLib] Added ``outputImpliedClosingLine=False`` parameter to ``Glyph.draw()``,
to control behaviour of ``PointToSegmentPen`` (6b4e2e7).
- [varLib.interpolatable] Check for wrong contour starting point (#2571).
- [cffLib] Remove leftover ``GlobalState`` class and fix calls to ``TopDictIndex()``
(#2569, #2570).
- [instancer] Clear ``AxisValueArray`` if it is empty after instantiating (#2563).
4.31.2 (released 2022-03-22)
----------------------------
- [varLib] fix instantiation of GPOS SinglePos values (#2555).
4.31.1 (released 2022-03-18)
----------------------------
- [subset] fix subsetting OT-SVG when glyph id attribute is on the root ``<svg>``
element (#2553).
4.31.0 (released 2022-03-18)
----------------------------
- [ttCollection] Fixed 'ResourceWarning: unclosed file' warning (#2549).
- [varLib.merger] Handle merging SinglePos with valueformat=0 (#2550).
- [ttFont] Update glyf's glyphOrder when calling TTFont.setGlyphOrder() (#2544).
- [ttFont] Added ``ensureDecompiled`` method to load all tables irrespective
of the ``lazy`` attribute (#2551).
- [otBase] Added ``iterSubTable`` method to iterate over BaseTable's children of
type BaseTable; useful for traversing a tree of otTables (#2551).
4.30.0 (released 2022-03-10)
----------------------------
- [varLib] Added debug logger showing the glyph name for which ``gvar`` is built (#2542).
- [varLib.errors] Fixed undefined names in ``FoundANone`` and ``UnsupportedFormat``
exceptions (ac4d5611).
- [otlLib.builder] Added ``windowsNames`` and ``macNames`` (bool) parameters to the
``buildStatTabe`` function, so that one can select whether to only add one or both
of the two sets (#2528).
- [t1Lib] Added the ability to recreate PostScript stream (#2504).
- [name] Added ``getFirstDebugName``, ``getBest{Family,SubFamily,Full}Name`` methods (#2526).
4.29.1 (released 2022-02-01)
----------------------------
- [colorLib] Fixed rounding issue with radial gradient's start/end circles inside
one another (#2521).
- [freetypePen] Handle rotate/skew transform when auto-computing width/height of the
buffer; raise PenError wen missing moveTo (#2517)
4.29.0 (released 2022-01-24)
----------------------------
- [ufoLib] Fixed illegal characters and expanded reserved filenames (#2506).
- [COLRv1] Don't emit useless PaintColrLayers of lenght=1 in LayerListBuilder (#2513).
- [ttx] Removed legacy ``waitForKeyPress`` method on Windows (#2509).
- [pens] Added FreeTypePen that uses ``freetype-py`` and the pen protocol for
rasterizating outline paths (#2494).
- [unicodedata] Updated the script direction list to Unicode 14.0 (#2484).
Bumped unicodedata2 dependency to 14.0 (#2499).
- [psLib] Fixed type of ``fontName`` in ``suckfont`` (#2496).
4.28.5 (released 2021-12-19)
----------------------------
- [svgPathPen] Continuation of #2471: make sure all occurrences of ``str()`` are now
replaced with user-defined ``ntos`` callable.
- [merge] Refactored code into submodules, plus several bugfixes and improvements:
fixed duplicate-glyph-resolution GSUB-lookup generation code; use tolerance in glyph
comparison for empty glyph's width; ignore space of default ignorable glyphs;
downgrade duplicates-resolution missing-GSUB from assert to warn; added --drop-tables
option (#2473, #2475, #2476).
4.28.4 (released 2021-12-15)
----------------------------
- [merge] Merge GDEF marksets in Lookups properly (#2474).
- [feaLib] Have ``fontTools feaLib`` script exit with error code when build fails (#2459)
- [svgPathPen] Added ``ntos`` option to customize number formatting (e.g. rounding) (#2471).
- [subset] Speed up subsetting of large CFF fonts (#2467).
- [otTables] Speculatively promote lookups to extension to speed up compilation. If the
offset to lookup N is too big to fit in a ushort, the offset to lookup N+1 is going to
be too big as well, so we promote to extension all lookups from lookup N onwards (#2465).
4.28.3 (released 2021-12-03)
----------------------------
- [subset] Fixed bug while subsetting ``COLR`` table, whereby incomplete layer records
pointing to missing glyphs were being retained leading to ``struct.error`` upon
compiling. Make it so that ``glyf`` glyph closure, which follows the ``COLR`` glyph
closure, does not influence the ``COLR`` table subsetting (#2461, #2462).
- [docs] Fully document the ``cmap`` and ``glyf`` tables (#2454, #2457).
- [colorLib.unbuilder] Fixed CLI by deleting no longer existing parameter (180bb1867).
4.28.2 (released 2021-11-22)
----------------------------
- [otlLib] Remove duplicates when building coverage (#2433).
- [docs] Add interrogate configuration (#2443).
- [docs] Remove comment about missing “start” optional argument to ``calcChecksum`` (#2448).
- [cu2qu/cli] Adapt to the latest ufoLib2.
- [subset] Support subsetting SVG table and remove it from the list of drop by default tables (#534).
- [subset] add ``--pretty-svg`` option to pretty print SVG table contents (#2452).
- [merge] Support merging ``CFF`` tables (CID-keyed ``CFF`` is still not supported) (#2447).
- [merge] Support ``--output-file`` (#2447).
- [docs] Split table docs into individual pages (#2444).
- [feaLib] Forbid empty classes (#2446).
- [docs] Improve documentation for ``fontTools.ttLib.ttFont`` (#2442).
4.28.1 (released 2021-11-08)
----------------------------
- [subset] Fixed AttributeError while traversing a color glyph's Paint graph when there is no
LayerList, which is optional (#2441).
4.28.0 (released 2021-11-05)
----------------------------
- Dropped support for EOL Python 3.6, require Python 3.7 (#2417).
- [ufoLib/glifLib] Make filename-clash checks faster by using a set instead of a list (#2422).
- [subset] Don't crash if optional ClipList and LayerList are ``None`` (empty) (#2424, 2439).
- [OT-SVG] Removed support for old deprecated version 1 and embedded color palettes,
which were never officially part of the OpenType SVG spec. Upon compile, reuse offsets
to SVG documents that are identical (#2430).
- [feaLib] Added support for Variable Feature File syntax. This is experimental and subject
to change until it is finalized in the Adobe FEA spec (#2432).
- [unicodedata] Update Scripts/ScriptExtensions/Blocks to UnicodeData 14.0 (#2437).
4.27.1 (released 2021-09-23)
----------------------------
- [otlLib] Fixed error when chained contextual lookup builder overflows (#2404, #2411).
- [bezierTools] Fixed two floating-point bugs: one when computing `t` for a point
lying on an almost horizontal/vertical line; another when computing the intersection
point between a curve and a line (#2413).
4.27.0 (released 2021-09-14)
----------------------------
- [ttLib/otTables] Cleaned up virtual GID handling: allow virtual GIDs in ``Coverage``
and ``ClassDef`` readers; removed unused ``allowVID`` argument from ``TTFont``
constructor, and ``requireReal`` argument in ``TTFont.getGlyphID`` method.
Make ``TTFont.setGlyphOrder`` clear reverse glyphOrder map, and assume ``glyphOrder``
internal attribute is never modified outside setGlyphOrder; added ``TTFont.getGlyphNameMany``
and ``getGlyphIDMany`` (#1536, #1654, #2334, #2398).
- [py23] Dropped internal use of ``fontTools.py23`` module to fix deprecation warnings
in client code that imports from fontTools (#2234, #2399, #2400).
- [subset] Fix subsetting COLRv1 clip boxes when font is loaded lazily (#2408).
4.26.2 (released 2021-08-09)
----------------------------
- [otTables] Added missing ``CompositeMode.PLUS`` operator (#2390).
4.26.1 (released 2021-08-03)
----------------------------
- [transform] Added ``transformVector`` and ``transformVectors`` methods to the
``Transform`` class. Similar to ``transformPoint`` but ignore the translation
part (#2386).
4.26.0 (released 2021-08-03)
----------------------------
- [xmlWriter] Default to ``"\n"`` for ``newlinestr`` instead of platform-specific
``os.linesep`` (#2384).
- [otData] Define COLRv1 ClipList and ClipBox (#2379).
- [removeOverlaps/instancer] Added --ignore-overlap-errors option to work around
Skia PathOps.Simplify bug (#2382, #2363, google/fonts#3365).
- NOTE: This will be the last version to support Python 3.6. FontTools will require
Python 3.7 or above from the next release (#2350)
4.25.2 (released 2021-07-26)
----------------------------
- [COLRv1] Various changes to sync with the latest CORLv1 draft spec. In particular:
define COLR.VarIndexMap, remove/inline ColorIndex struct, add VarIndexBase to ``PaintVar*`` tables (#2372);
add reduced-precicion specialized transform Paints;
define Angle as fraction of half circle encoded as F2Dot14;
use FWORD (int16) for all Paint center coordinates;
change PaintTransform to have an offset to Affine2x3;
- [ttLib] when importing XML, only set sfntVersion if the font has no reader and is empty (#2376)
4.25.1 (released 2021-07-16)
----------------------------
- [ttGlyphPen] Fixed bug in ``TTGlyphPointPen``, whereby open contours (i.e. starting
with segmentType "move") would throw ``NotImplementedError``. They are now treated
as if they are closed, like with the ``TTGlyphPen`` (#2364, #2366).
4.25.0 (released 2021-07-05)
----------------------------
- [tfmLib] Added new library for parsing TeX Font Metric (TFM) files (#2354).
- [TupleVariation] Make shared tuples order deterministic on python < 3.7 where
Counter (subclass of dict) doesn't remember insertion order (#2351, #2353).
- [otData] Renamed COLRv1 structs to remove 'v1' suffix and match the updated draft
spec: 'LayerV1List' -> 'LayerList', 'BaseGlyphV1List' -> 'BaseGlyphList',
'BaseGlyphV1Record' -> 'BaseGlyphPaintRecord' (#2346).
Added 8 new ``PaintScale*`` tables: with/without centers, uniform vs non-uniform.
Added ``*AroundCenter`` variants to ``PaintRotate`` and ``PaintSkew``: the default
versions no longer have centerX/Y, but default to origin.
``PaintRotate``, ``PaintSkew`` and ``PaintComposite`` formats were re-numbered.
NOTE: these are breaking changes; clients using the experimental COLRv1 API will
have to be updated (#2348).
- [pointPens] Allow ``GuessSmoothPointPen`` to accept a tolerance. Fixed call to
``math.atan2`` with x/y parameters inverted. Sync the code with fontPens (#2344).
- [post] Fixed parsing ``post`` table format 2.0 when it contains extra garbage
at the end of the stringData array (#2314).
- [subset] drop empty features unless 'size' with FeatureParams table (#2324).
- [otlLib] Added ``otlLib.optimize`` module; added GPOS compaction algorithm.
The compaction can be run on existing fonts with ``fonttools otlLib.optimize``
or using the snippet ``compact_gpos.py``. There's experimental support for
compacting fonts at compilation time using an environment variable, but that
might be removed later (#2326).
4.24.4 (released 2021-05-25)
----------------------------
- [subset/instancer] Fixed ``AttributeError`` when instantiating a VF that
contains GPOS ValueRecords with ``Device`` tables but without the respective
non-Device values (e.g. ``XAdvDevice`` without ``XAdvance``). When not
explicitly set, the latter are assumed to be 0 (#2323).
4.24.3 (released 2021-05-20)
----------------------------
- [otTables] Fixed ``AttributeError`` in methods that split LigatureSubst,
MultipleSubst and AlternateSubst subtables when an offset overflow occurs.
The ``Format`` attribute was removed in v4.22.0 (#2319).
4.24.2 (released 2021-05-20)
----------------------------
- [ttGlyphPen] Fixed typing annotation of TTGlyphPen glyphSet parameter (#2315).
- Fixed two instances of DeprecationWarning: invalid escape sequence (#2311).
4.24.1 (released 2021-05-20)
----------------------------
- [subset] Fixed AttributeError when SinglePos subtable has None Value (ValueFormat 0)
(#2312, #2313).
4.24.0 (released 2021-05-17)
----------------------------
- [pens] Add ``ttGlyphPen.TTGlyphPointPen`` similar to ``TTGlyphPen`` (#2205).
4.23.1 (released 2021-05-14)
----------------------------
- [subset] Fix ``KeyError`` after subsetting ``COLR`` table that initially contains
both v0 and v1 color glyphs when the subset only requested v1 glyphs; we were
not pruning the v0 portion of the table (#2308).
- [colorLib] Set ``LayerV1List`` attribute to ``None`` when empty, it's optional
in CORLv1 (#2308).
4.23.0 (released 2021-05-13)
----------------------------
- [designspaceLib] Allow to use ``\\UNC`` absolute paths on Windows (#2299, #2306).
- [varLib.merger] Fixed bug where ``VarLibMergeError`` was raised with incorrect
parameters (#2300).
- [feaLib] Allow substituting a glyph class with ``NULL`` to delete multiple glyphs
(#2303).
- [glyf] Fixed ``NameError`` exception in ``getPhantomPoints`` (#2295, #2305).
- [removeOverlaps] Retry pathops.simplify after rounding path coordinates to integers
if it fails the first time using floats, to work around a rare and hard to debug
Skia bug (#2288).
- [varLib] Added support for building, reading, writing and optimizing 32-bit
``ItemVariationStore`` as used in COLRv1 table (#2285).
- [otBase/otConverters] Add array readers/writers for int types (#2285).
- [feaLib] Allow more than one lookahead glyph/class in contextual positioning with
"value at end" (#2293, #2294).
- [COLRv1] Default varIdx should be 0xFFFFFFFF (#2297, #2298).
- [pens] Make RecordingPointPen actually pass on identifiers; replace asserts with
explicit ``PenError`` exception (#2284).
- [mutator] Round lsb for CF2 fonts as well (#2286).
4.22.1 (released 2021-04-26)
----------------------------
- [feaLib] Skip references to named lookups if the lookup block definition
is empty, similarly to makeotf. This also fixes an ``AttributeError`` while
generating ``aalt`` feature (#2276, #2277).
- [subset] Fixed bug with ``--no-hinting`` implementation for Device tables (#2272,
#2275). The previous code was alwyas dropping Device tables if no-hinting was
requested, but some Device tables (DeltaFormat=0x8000) are also used to encode
variation indices and need to be retained.
- [otBase] Fixed bug in getting the ValueRecordSize when decompiling ``MVAR``
table with ``lazy=True`` (#2273, #2274).
- [varLib/glyf/gvar] Optimized and simplified ``GlyphCoordinates`` and
``TupleVariation`` classes, use ``bytearray`` where possible, refactored
phantom-points calculations. We measured about 30% speedup in total time
of loading master ttfs, building gvar, and saving (#2261, #2266).
- [subset] Fixed ``AssertionError`` while pruning unused CPAL palettes when
``0xFFFF`` is present (#2257, #2259).
4.22.0 (released 2021-04-01)
----------------------------
- [ttLib] Remove .Format from Coverage, ClassDef, SingleSubst, LigatureSubst,
AlternateSubst, MultipleSubst (#2238).
ATTENTION: This will change your TTX dumps!
- [misc.arrayTools] move Vector to its own submodule, and rewrite as a tuple
subclass (#2201).
- [docs] Added a terminology section for varLib (#2209).
- [varLib] Move rounding to VariationModel, to avoid error accumulation from
multiple deltas (#2214)
- [varLib] Explain merge errors in more human-friendly terms (#2223, #2226)
- [otlLib] Correct some documentation (#2225)
- [varLib/otlLib] Allow merging into VariationFont without first saving GPOS
PairPos2 (#2229)
- [subset] Improve PairPosFormat2 subsetting (#2221)
- [ttLib] TTFont.save: create file on disk as late as possible (#2253)
- [cffLib] Add missing CFF2 dict operators LanguageGroup and ExpansionFactor
(#2249)
ATTENTION: This will change your TTX dumps!
4.21.1 (released 2021-02-26)
----------------------------
- [pens] Reverted breaking change that turned ``AbstractPen`` and ``AbstractPointPen``
into abstract base classes (#2164, #2198).
4.21.0 (released 2021-02-26)
----------------------------
- [feaLib] Indent anchor statements in ``asFea()`` to make them more legible and
diff-able (#2193).
- [pens] Turn ``AbstractPen`` and ``AbstractPointPen`` into abstract base classes
(#2164).
- [feaLib] Added support for parsing and building ``STAT`` table from AFDKO feature
files (#2039).
- [instancer] Added option to update name table of generated instance using ``STAT``
table's axis values (#2189).
- [bezierTools] Added functions to compute bezier point-at-time, as well as line-line,
curve-line and curve-curve intersections (#2192).
4.20.0 (released 2021-02-15)
----------------------------
- [COLRv1] Added ``unbuildColrV1`` to deconstruct COLRv1 otTables to raw json-able
data structure; it does the reverse of ``buildColrV1`` (#2171).
- [feaLib] Allow ``sub X by NULL`` sequence to delete a glyph (#2170).
- [arrayTools] Fixed ``Vector`` division (#2173).
- [COLRv1] Define new ``PaintSweepGradient`` (#2172).
- [otTables] Moved ``Paint.Format`` enum class outside of ``Paint`` class definition,
now named ``PaintFormat``. It was clashing with paint instance ``Format`` attribute
and thus was breaking lazy load of COLR table which relies on magic ``__getattr__``
(#2175).
- [COLRv1] Replace hand-coded builder functions with otData-driven dynamic
implementation (#2181).
- [COLRv1] Define additional static (non-variable) Paint formats (#2181).
- [subset] Added support for subsetting COLR v1 and CPAL tables (#2174, #2177).
- [fontBuilder] Allow ``setupFvar`` to optionally take ``designspaceLib.AxisDescriptor``
objects. Added new ``setupAvar`` method. Support localised names for axes and
named instances (#2185).
4.19.1 (released 2021-01-28)
----------------------------
- [woff2] An initial off-curve point with an overlap flag now stays an off-curve
point after compression.
4.19.0 (released 2021-01-25)
----------------------------
- [codecs] Handle ``errors`` parameter different from 'strict' for the custom
extended mac encodings (#2137, #2132).
- [featureVars] Raise better error message when a script is missing the required
default language system (#2154).
- [COLRv1] Avoid abrupt change caused by rounding ``PaintRadialGradient.c0`` when
the start circle almost touches the end circle's perimeter (#2148).
- [COLRv1] Support building unlimited lists of paints as 255-ary trees of
``PaintColrLayers`` tables (#2153).
- [subset] Prune redundant format-12 cmap subtables when all non-BMP characters
are dropped (#2146).
- [basePen] Raise ``MissingComponentError`` instead of bare ``KeyError`` when a
referenced component is missing (#2145).
4.18.2 (released 2020-12-16)
----------------------------
- [COLRv1] Implemented ``PaintTranslate`` paint format (#2129).
- [varLib.cff] Fixed unbound local variable error (#1787).
- [otlLib] Don't crash when creating OpenType class definitions if some glyphs
occur more than once (#2125).
4.18.1 (released 2020-12-09)
----------------------------
- [colorLib] Speed optimization for ``LayerV1ListBuilder`` (#2119).
- [mutator] Fixed missing tab in ``interpolate_cff2_metrics`` (0957dc7a).
4.18.0 (released 2020-12-04)
----------------------------
- [COLRv1] Update to latest draft: added ``PaintRotate`` and ``PaintSkew`` (#2118).
- [woff2] Support new ``brotlicffi`` bindings for PyPy (#2117).
- [glifLib] Added ``expectContentsFile`` parameter to ``GlyphSet``, for use when
reading existing UFOs, to comply with the specification stating that a
``contents.plist`` file must exist in a glyph set (#2114).
- [subset] Allow ``LangSys`` tags in ``--layout-scripts`` option (#2112). For example:
``--layout-scripts=arab.dflt,arab.URD,latn``; this will keep ``DefaultLangSys``
and ``URD`` language for ``arab`` script, and all languages for ``latn`` script.
- [varLib.interpolatable] Allow UFOs to be checked; report open paths, non existant
glyphs; add a ``--json`` option to produce a machine-readable list of
incompatibilities
- [pens] Added ``QuartzPen`` to create ``CGPath`` from glyph outlines on macOS.
Requires pyobjc (#2107).
- [feaLib] You can export ``FONTTOOLS_LOOKUP_DEBUGGING=1`` to enable feature file
debugging info stored in ``Debg`` table (#2106).
- [otlLib] Build more efficient format 1 and format 2 contextual lookups whenever
possible (#2101).
4.17.1 (released 2020-11-16)
----------------------------
- [colorLib] Fixed regression in 4.17.0 when building COLR v0 table; when color
layers are stored in UFO lib plist, we can't distinguish tuples from lists so
we need to accept either types (e5439eb9, googlefonts/ufo2ft/issues#426).
4.17.0 (released 2020-11-12)
----------------------------
- [colorLib/otData] Updated to latest draft ``COLR`` v1 spec (#2092).
- [svgLib] Fixed parsing error when arc commands' boolean flags are not separated
by space or comma (#2094).
- [varLib] Interpret empty non-default glyphs as 'missing', if the default glyph is
not empty (#2082).
- [feaLib.builder] Only stash lookup location for ``Debg`` if ``Builder.buildLookups_``
has cooperated (#2065, #2067).
- [varLib] Fixed bug in VarStore optimizer (#2073, #2083).
- [varLib] Add designspace lib key for custom feavar feature tag (#2080).
- Add HashPointPen adapted from psautohint. With this pen, a hash value of a glyph
can be computed, which can later be used to detect glyph changes (#2005).
4.16.1 (released 2020-10-05)
----------------------------
- [varLib.instancer] Fixed ``TypeError`` exception when instantiating a VF with
a GSUB table 1.1 in which ``FeatureVariations`` attribute is present but set to
``None`` -- indicating that optional ``FeatureVariations`` is missing (#2077).
- [glifLib] Make ``x`` and ``y`` attributes of the ``point`` element required
even when validation is turned off, and raise a meaningful ``GlifLibError``
message when that happens (#2075).
4.16.0 (released 2020-09-30)
----------------------------
- [removeOverlaps] Added new module and ``removeOverlaps`` function that merges
overlapping contours and components in TrueType glyphs. It requires the
`skia-pathops <https://github.com/fonttools/skia-pathops>`__ module.
Note that removing overlaps invalidates the TrueType hinting (#2068).
- [varLib.instancer] Added ``--remove-overlaps`` command-line option.
The ``overlap`` option in ``instantiateVariableFont`` now takes an ``OverlapMode``
enum: 0: KEEP_AND_DONT_SET_FLAGS, 1: KEEP_AND_SET_FLAGS (default), and 2: REMOVE.
The latter is equivalent to calling ``removeOverlaps`` on the generated static
instance. The option continues to accept ``bool`` value for backward compatibility.
4.15.0 (released 2020-09-21)
----------------------------
- [plistlib] Added typing annotations to plistlib module. Set up mypy static
typechecker to run automatically on CI (#2061).
- [ttLib] Implement private ``Debg`` table, a reverse-DNS namespaced JSON dict.
- [feaLib] Optionally add an entry into the ``Debg`` table with the original
lookup name (if any), feature name / script / language combination (if any),
and original source filename and line location. Annotate the ttx output for
a lookup with the information from the Debg table (#2052).
- [sfnt] Disabled checksum checking by default in ``SFNTReader`` (#2058).
- [Docs] Document ``mtiLib`` module (#2027).
- [varLib.interpolatable] Added checks for contour node count and operation type
of each node (#2054).
- [ttLib] Added API to register custom table packer/unpacker classes (#2055).
4.14.0 (released 2020-08-19)
----------------------------
- [feaLib] Allow anonymous classes in LookupFlags definitions (#2037).
- [Docs] Better document DesignSpace rules processing order (#2041).
- [ttLib] Fixed 21-year old bug in ``maxp.maxComponentDepth`` calculation (#2044,
#2045).
- [varLib.models] Fixed misspelled argument name in CLI entry point (81d0042a).
- [subset] When subsetting GSUB v1.1, fixed TypeError by checking whether the
optional FeatureVariations table is present (e63ecc5b).
- [Snippets] Added snippet to show how to decompose glyphs in a TTF (#2030).
- [otlLib] Generate GSUB type 5 and GPOS type 7 contextual lookups where appropriate
(#2016).
4.13.0 (released 2020-07-10)
----------------------------
- [feaLib/otlLib] Moved lookup subtable builders from feaLib to otlLib; refactored
some common code (#2004, #2007).
- [docs] Document otlLib module (#2009).
- [glifLib] Fixed bug with some UFO .glif filenames clashing on case-insensitive
filesystems (#2001, #2002).
- [colorLib] Updated COLRv1 implementation following changes in the draft spec:
(#2008, googlefonts/colr-gradients-spec#24).
4.12.1 (released 2020-06-16)
----------------------------
- [_n_a_m_e] Fixed error in ``addMultilingualName`` with one-character names.
Only attempt to recovered malformed UTF-16 data from a ``bytes`` string,
not from unicode ``str`` (#1997, #1998).
4.12.0 (released 2020-06-09)
----------------------------
- [otlLib/varLib] Ensure that the ``AxisNameID`` in the ``STAT`` and ``fvar``
tables is grater than 255 as per OpenType spec (#1985, #1986).
- [docs] Document more modules in ``fontTools.misc`` package: ``filenames``,
``fixedTools``, ``intTools``, ``loggingTools``, ``macCreatorType``, ``macRes``,
``plistlib`` (#1981).
- [OS/2] Don't calculate whole sets of unicode codepoints, use faster and more memory
efficient ranges and bisect lookups (#1984).
- [voltLib] Support writing back abstract syntax tree as VOLT data (#1983).
- [voltLib] Accept DO_NOT_TOUCH_CMAP keyword (#1987).
- [subset/merge] Fixed a namespace clash involving a private helper class (#1955).
4.11.0 (released 2020-05-28)
----------------------------
- [feaLib] Introduced ``includeDir`` parameter on Parser and IncludingLexer to
explicitly specify the directory to search when ``include()`` statements are
encountered (#1973).
- [ufoLib] Silently delete duplicate glyphs within the same kerning group when reading
groups (#1970).
- [ttLib] Set version of COLR table when decompiling COLRv1 (commit 9d8a7e2).
4.10.2 (released 2020-05-20)
----------------------------
- [sfnt] Fixed ``NameError: SimpleNamespace`` while reading TTC header. The regression
was introduced with 4.10.1 after removing ``py23`` star import.
4.10.1 (released 2020-05-19)
----------------------------
- [sfnt] Make ``SFNTReader`` pickleable even when TTFont is loaded with lazy=True
option and thus keeps a reference to an external file (#1962, #1967).
- [feaLib.ast] Restore backward compatibility (broken in 4.10 with #1905) for
``ChainContextPosStatement`` and ``ChainContextSubstStatement`` classes.
Make them accept either list of lookups or list of lists of lookups (#1961).
- [docs] Document some modules in ``fontTools.misc`` package: ``arrayTools``,
``bezierTools`` ``cliTools`` and ``eexec`` (#1956).
- [ttLib._n_a_m_e] Fixed ``findMultilingualName()`` when name record's ``string`` is
encoded as bytes sequence (#1963).
4.10.0 (released 2020-05-15)
----------------------------
- [varLib] Allow feature variations to be active across the entire space (#1957).
- [ufoLib] Added support for ``formatVersionMinor`` in UFO's ``fontinfo.plist`` and for
``formatMinor`` attribute in GLIF file as discussed in unified-font-object/ufo-spec#78.
No changes in reading or writing UFOs until an upcoming (non-0) minor update of the
UFO specification is published (#1786).
- [merge] Fixed merging fonts with different versions of ``OS/2`` table (#1865, #1952).
- [subset] Fixed ``AttributeError`` while subsetting ``ContextSubst`` and ``ContextPos``
Format 3 subtable (#1879, #1944).
- [ttLib.table._m_e_t_a] if data happens to be ascii, emit comment in TTX (#1938).
- [feaLib] Support multiple lookups per glyph position (#1905).
- [psCharStrings] Use inheritance to avoid repeated code in initializer (#1932).
- [Doc] Improved documentation for the following modules: ``afmLib`` (#1933), ``agl``
(#1934), ``cffLib`` (#1935), ``cu2qu`` (#1937), ``encodings`` (#1940), ``feaLib``
(#1941), ``merge`` (#1949).
- [Doc] Split off developer-centric info to new page, making front page of docs more
user-focused. List all utilities and sub-modules with brief descriptions.
Make README more concise and focused (#1914).
- [otlLib] Add function to build STAT table from high-level description (#1926).
- [ttLib._n_a_m_e] Add ``findMultilingualName()`` method (#1921).
- [unicodedata] Update ``RTL_SCRIPTS`` for Unicode 13.0 (#1925).
- [gvar] Sort ``gvar`` XML output by glyph name, not glyph order (#1907, #1908).
- [Doc] Added help options to ``fonttools`` command line tool (#1913, #1920).
Ensure all fonttools CLI tools have help documentation (#1948).
- [ufoLib] Only write fontinfo.plist when there actually is content (#1911).
4.9.0 (released 2020-04-29)
---------------------------
- [subset] Fixed subsetting of FeatureVariations table. The subsetter no longer drops
FeatureVariationRecords that have empty substitutions as that will keep the search
going and thus change the logic. It will only drop empty records that occur at the
end of the FeatureVariationRecords array (#1881).
- [subset] Remove FeatureVariations table and downgrade GSUB/GPOS to version 0x10000
when FeatureVariations contain no FeatureVariationRecords after subsetting (#1903).
- [agl] Add support for legacy Adobe Glyph List of glyph names in ``fontTools.agl``
(#1895).
- [feaLib] Ignore superfluous script statements (#1883).
- [feaLib] Hide traceback by default on ``fonttools feaLib`` command line.
Use ``--traceback`` option to show (#1898).
- [feaLib] Check lookup index in chaining sub/pos lookups and print better error
message (#1896, #1897).
- [feaLib] Fix building chained alt substitutions (#1902).
- [Doc] Included all fontTools modules in the sphinx-generated documentation, and
published it to ReadTheDocs for continuous documentation of the fontTools project
(#1333). Check it out at https://fonttools.readthedocs.io/. Thanks to Chris Simpkins!
- [transform] The ``Transform`` class is now subclass of ``typing.NamedTuple``. No
change in functionality (#1904).
4.8.1 (released 2020-04-17)
---------------------------
- [feaLib] Fixed ``AttributeError: 'NoneType' has no attribute 'getAlternateGlyphs'``
when ``aalt`` feature references a chain contextual substitution lookup
(googlefonts/fontmake#648, #1878).
4.8.0 (released 2020-04-16)
---------------------------
- [feaLib] If Parser is initialized without a ``glyphNames`` parameter, it cannot
distinguish between a glyph name containing an hyphen, or a range of glyph names;
instead of raising an error, it now interprets them as literal glyph names, while
also outputting a logging warning to alert user about the ambiguity (#1768, #1870).
- [feaLib] When serializing AST to string, emit spaces around hyphens that denote
ranges. Also, fixed an issue with CID ranges when round-tripping AST->string->AST
(#1872).
- [Snippets/otf2ttf] In otf2ttf.py script update LSB in hmtx to match xMin (#1873).
- [colorLib] Added experimental support for building ``COLR`` v1 tables as per
the `colr-gradients-spec <https://github.com/googlefonts/colr-gradients-spec/blob/main/colr-gradients-spec.md>`__
draft proposal. **NOTE**: both the API and the XML dump of ``COLR`` v1 are
susceptible to change while the proposal is being discussed and formalized (#1822).
4.7.0 (released 2020-04-03)
---------------------------
- [cu2qu] Added ``fontTools.cu2qu`` package, imported from the original
`cu2qu <https://github.com/googlefonts/cu2qu>`__ project. The ``cu2qu.pens`` module
was moved to ``fontTools.pens.cu2quPen``. The optional cu2qu extension module
can be compiled by installing `Cython <https://cython.org/>`__ before installing
fonttools from source (i.e. git repo or sdist tarball). The wheel package that
is published on PyPI (i.e. the one ``pip`` downloads, unless ``--no-binary``
option is used), will continue to be pure-Python for now (#1868).
4.6.0 (released 2020-03-24)
---------------------------
- [varLib] Added support for building variable ``BASE`` table version 1.1 (#1858).
- [CPAL] Added ``fromRGBA`` method to ``Color`` class (#1861).
4.5.0 (released 2020-03-20)
---------------------------
- [designspaceLib] Added ``add{Axis,Source,Instance,Rule}Descriptor`` methods to
``DesignSpaceDocument`` class, to initialize new descriptor objects using keyword
arguments, and at the same time append them to the current document (#1860).
- [unicodedata] Update to Unicode 13.0 (#1859).
4.4.3 (released 2020-03-13)
---------------------------
- [varLib] Always build ``gvar`` table for TrueType-flavored Variable Fonts,
even if it contains no variation data. The table is required according to
the OpenType spec (#1855, #1857).
4.4.2 (released 2020-03-12)
---------------------------
- [ttx] Annotate ``LookupFlag`` in XML dump with comment explaining what bits
are set and what they mean (#1850).
- [feaLib] Added more descriptive message to ``IncludedFeaNotFound`` error (#1842).
4.4.1 (released 2020-02-26)
---------------------------
- [woff2] Skip normalizing ``glyf`` and ``loca`` tables if these are missing from
a font (e.g. in NotoColorEmoji using ``CBDT/CBLC`` tables).
- [timeTools] Use non-localized date parsing in ``timestampFromString``, to fix
error when non-English ``LC_TIME`` locale is set (#1838, #1839).
- [fontBuilder] Make sure the CFF table generated by fontBuilder can be used by varLib
without having to compile and decompile the table first. This was breaking in
converting the CFF table to CFF2 due to some unset attributes (#1836).
4.4.0 (released 2020-02-18)
---------------------------
- [colorLib] Added ``fontTools.colorLib.builder`` module, initially with ``buildCOLR``
and ``buildCPAL`` public functions. More color font formats will follow (#1827).
- [fontBuilder] Added ``setupCOLR`` and ``setupCPAL`` methods (#1826).
- [ttGlyphPen] Quantize ``GlyphComponent.transform`` floats to ``F2Dot14`` to fix
round-trip issue when computing bounding boxes of transformed components (#1830).
- [glyf] If a component uses reference points (``firstPt`` and ``secondPt``) for
alignment (instead of X and Y offsets), compute the effective translation offset
*after* having applied any transform (#1831).
- [glyf] When all glyphs have zero contours, compile ``glyf`` table data as a single
null byte in order to pass validation by OTS and Windows (#1829).
- [feaLib] Parsing feature code now ensures that referenced glyph names are part of
the known glyph set, unless a glyph set was not provided.
- [varLib] When filling in the default axis value for a missing location of a source or
instance, correctly map the value forward.
- [varLib] The avar table can now contain mapping output values that are greater than
OR EQUAL to the preceeding value, as the avar specification allows this.
- [varLib] The errors of the module are now ordered hierarchically below VarLibError.
See #1821.
4.3.0 (released 2020-02-03)
---------------------------
- [EBLC/CBLC] Fixed incorrect padding length calculation for Format 3 IndexSubTable
(#1817, #1818).
- [varLib] Fixed error when merging OTL tables and TTFonts were loaded as ``lazy=True``
(#1808, #1809).
- [varLib] Allow to use master fonts containing ``CFF2`` table when building VF (#1816).
- [ttLib] Make ``recalcBBoxes`` option work also with ``CFF2`` table (#1816).
- [feaLib] Don't reset ``lookupflag`` in lookups defined inside feature blocks.
They will now inherit the current ``lookupflag`` of the feature. This is what
Adobe ``makeotf`` also does in this case (#1815).
- [feaLib] Fixed bug with mixed single/multiple substitutions. If a single substitution
involved a glyph class, we were incorrectly using only the first glyph in the class
(#1814).
4.2.5 (released 2020-01-29)
---------------------------
- [feaLib] Do not fail on duplicate multiple substitutions, only warn (#1811).
- [subset] Optimize SinglePos subtables to Format 1 if all ValueRecords are the same
(#1802).
4.2.4 (released 2020-01-09)
---------------------------
- [unicodedata] Update RTL_SCRIPTS for Unicode 11 and 12.
4.2.3 (released 2020-01-07)
---------------------------
- [otTables] Fixed bug when splitting `MarkBasePos` subtables as offsets overflow.
The mark class values in the split subtable were not being updated, leading to
invalid mark-base attachments (#1797, googlefonts/noto-source#145).
- [feaLib] Only log a warning instead of error when features contain duplicate
substitutions (#1767).
- [glifLib] Strip XML comments when parsing with lxml (#1784, #1785).
4.2.2 (released 2019-12-12)
---------------------------
- [subset] Fixed issue with subsetting FeatureVariations table when the index
of features changes as features get dropped. The feature index need to be
remapped to point to index of the remaining features (#1777, #1782).
- [fontBuilder] Added `addFeatureVariations` method to `FontBuilder` class. This
is a shorthand for calling `featureVars.addFeatureVariations` on the builder's
TTFont object (#1781).
- [glyf] Fixed the flags bug in glyph.drawPoints() like we did for glyph.draw()
(#1771, #1774).
4.2.1 (released 2019-12-06)
---------------------------
- [glyf] Use the ``flagOnCurve`` bit mask in ``glyph.draw()``, so that we ignore
the ``overlap`` flag that may be set when instantiating variable fonts (#1771).
4.2.0 (released 2019-11-28)
---------------------------
- [pens] Added the following pens:
* ``roundingPen.RoundingPen``: filter pen that rounds coordinates and components'
offsets to integer;
* ``roundingPen.RoundingPointPen``: like the above, but using PointPen protocol.
* ``filterPen.FilterPointPen``: base class for filter point pens;
* ``transformPen.TransformPointPen``: filter point pen to apply affine transform;
* ``recordingPen.RecordingPointPen``: records and replays point-pen commands.
- [ttGlyphPen] Always round float coordinates and component offsets to integers
(#1763).
- [ufoLib] When converting kerning groups from UFO2 to UFO3, avoid confusing
groups with the same name as one of the glyphs (#1761, #1762,
unified-font-object/ufo-spec#98).
4.1.0 (released 2019-11-18)
---------------------------
- [instancer] Implemented restricting axis ranges (level 3 partial instancing).
You can now pass ``{axis_tag: (min, max)}`` tuples as input to the
``instantiateVariableFont`` function. Note that changing the default axis
position is not supported yet. The command-line script also accepts axis ranges
in the form of colon-separated float values, e.g. ``wght=400:700`` (#1753, #1537).
- [instancer] Never drop STAT ``DesignAxis`` records, but only prune out-of-range
``AxisValue`` records.
- [otBase/otTables] Enforce that VarStore.RegionAxisCount == fvar.axisCount, even
when regions list is empty to appease OTS < v8.0 (#1752).
- [designspaceLib] Defined new ``processing`` attribute for ``<rules>`` element,
with values "first" or "last", plus other editorial changes to DesignSpace
specification. Bumped format version to 4.1 (#1750).
- [varLib] Improved error message when masters' glyph orders do not match (#1758,
#1759).
- [featureVars] Allow to specify custom feature tag in ``addFeatureVariations``;
allow said feature to already exist, in which case we append new lookup indices
to existing features. Implemented ``<rules>`` attribute ``processing`` according to
DesignSpace specification update in #1750. Depending on this flag, we generate
either an 'rvrn' (always processed first) or a 'rclt' feature (follows lookup order,
therefore last) (#1747, #1625, #1371).
- [ttCollection] Added support for context manager auto-closing via ``with`` statement
like with ``TTFont`` (#1751).
- [unicodedata] Require unicodedata2 >= 12.1.0.
- [py2.py3] Removed yet more PY2 vestiges (#1743).
- [_n_a_m_e] Fixed issue when comparing NameRecords with different string types (#1742).
- [fixedTools] Changed ``fixedToFloat`` to not do any rounding but simply return
``value / (1 << precisionBits)``. Added ``floatToFixedToStr`` and
``strToFixedToFloat`` functions to be used when loading from or dumping to XML.
Fixed values (e.g. fvar axes and instance coordinates, avar mappings, etc.) are
are now stored as un-rounded decimal floats upon decompiling (#1740, #737).
- [feaLib] Fixed handling of multiple ``LigatureCaret`` statements for the same glyph.
Only the first rule per glyph is used, additional ones are ignored (#1733).
4.0.2 (released 2019-09-26)
---------------------------
- [voltLib] Added support for ``ALL`` and ``NONE`` in ``PROCESS_MARKS`` (#1732).
- [Silf] Fixed issue in ``Silf`` table compilation and decompilation regarding str vs
bytes in python3 (#1728).
- [merge] Handle duplicate glyph names better: instead of appending font index to
all glyph names, use similar code like we use in ``post`` and ``CFF`` tables (#1729).
4.0.1 (released 2019-09-11)
---------------------------
- [otTables] Support fixing offset overflows in ``MultipleSubst`` lookup subtables
(#1706).
- [subset] Prune empty strikes in ``EBDT`` and ``CBDT`` table data (#1698, #1633).
- [pens] Fixed issue in ``PointToSegmentPen`` when last point of closed contour has
same coordinates as the starting point and was incorrectly dropped (#1720).
- [Graphite] Fixed ``Sill`` table output to pass OTS (#1705).
- [name] Added ``removeNames`` method to ``table__n_a_m_e`` class (#1719).
- [ttLib] Added aliases for renamed entries ``ascender`` and ``descender`` in
``hhea`` table (#1715).
4.0.0 (released 2019-08-22)
---------------------------
- NOTE: The v4.x version series only supports Python 3.6 or greater. You can keep
using fonttools 3.x if you need support for Python 2.
- [py23] Removed all the python2-only code since it is no longer reachable, thus
unused; only the Python3 symbols were kept, but these are no-op. The module is now
DEPRECATED and will removed in the future.
- [ttLib] Fixed UnboundLocalError for empty loca/glyph tables (#1680). Also, allow
the glyf table to be incomplete when dumping to XML (#1681).
- [varLib.models] Fixed KeyError while sorting masters and there are no on-axis for
a given axis (38a8eb0e).
- [cffLib] Make sure glyph names are unique (#1699).
- [feaLib] Fix feature parser to correctly handle octal numbers (#1700).
\... see `here <https://github.com/fonttools/fonttools/blob/main/NEWS.rst>`__ for earlier changes
Raw data
{
"_id": null,
"home_page": "http://github.com/fonttools/fonttools",
"name": "fonttools",
"maintainer": "Behdad Esfahbod",
"docs_url": null,
"requires_python": ">=3.8",
"maintainer_email": "behdad@behdad.org",
"keywords": null,
"author": "Just van Rossum",
"author_email": "just@letterror.com",
"download_url": "https://files.pythonhosted.org/packages/1c/8c/9ffa2a555af0e5e5d0e2ed7fdd8c9bef474ed676995bb4c57c9cd0014248/fonttools-4.56.0.tar.gz",
"platform": "Any",
"description": "|CI Build Status| |Coverage Status| |PyPI| |Gitter Chat|\n\nWhat is this?\n~~~~~~~~~~~~~\n\n| fontTools is a library for manipulating fonts, written in Python. The\n project includes the TTX tool, that can convert TrueType and OpenType\n fonts to and from an XML text format, which is also called TTX. It\n supports TrueType, OpenType, AFM and to an extent Type 1 and some\n Mac-specific formats. The project has an `MIT open-source\n licence <LICENSE>`__.\n| Among other things this means you can use it free of charge.\n\n`User documentation <https://fonttools.readthedocs.io/en/latest/>`_ and\n`developer documentation <https://fonttools.readthedocs.io/en/latest/developer.html>`_\nare available at `Read the Docs <https://fonttools.readthedocs.io/>`_.\n\nInstallation\n~~~~~~~~~~~~\n\nFontTools requires `Python <http://www.python.org/download/>`__ 3.8\nor later. We try to follow the same schedule of minimum Python version support as\nNumPy (see `NEP 29 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__).\n\nThe package is listed in the Python Package Index (PyPI), so you can\ninstall it with `pip <https://pip.pypa.io>`__:\n\n.. code:: sh\n\n pip install fonttools\n\nIf you would like to contribute to its development, you can clone the\nrepository from GitHub, install the package in 'editable' mode and\nmodify the source code in place. We recommend creating a virtual\nenvironment, using `virtualenv <https://virtualenv.pypa.io>`__ or\nPython 3 `venv <https://docs.python.org/3/library/venv.html>`__ module.\n\n.. code:: sh\n\n # download the source code to 'fonttools' folder\n git clone https://github.com/fonttools/fonttools.git\n cd fonttools\n\n # create new virtual environment called e.g. 'fonttools-venv', or anything you like\n python -m virtualenv fonttools-venv\n\n # source the `activate` shell script to enter the environment (Unix-like); to exit, just type `deactivate`\n . fonttools-venv/bin/activate\n\n # to activate the virtual environment in Windows `cmd.exe`, do\n fonttools-venv\\Scripts\\activate.bat\n\n # install in 'editable' mode\n pip install -e .\n\nOptional Requirements\n---------------------\n\nThe ``fontTools`` package currently has no (required) external dependencies\nbesides the modules included in the Python Standard Library.\nHowever, a few extra dependencies are required by some of its modules, which\nare needed to unlock optional features.\nThe ``fonttools`` PyPI distribution also supports so-called \"extras\", i.e. a\nset of keywords that describe a group of additional dependencies, which can be\nused when installing via pip, or when specifying a requirement.\nFor example:\n\n.. code:: sh\n\n pip install fonttools[ufo,lxml,woff,unicode]\n\nThis command will install fonttools, as well as the optional dependencies that\nare required to unlock the extra features named \"ufo\", etc.\n\n- ``Lib/fontTools/misc/etree.py``\n\n The module exports a ElementTree-like API for reading/writing XML files, and\n allows to use as the backend either the built-in ``xml.etree`` module or\n `lxml <https://lxml.de>`__. The latter is preferred whenever present,\n as it is generally faster and more secure.\n\n *Extra:* ``lxml``\n\n- ``Lib/fontTools/ufoLib``\n\n Package for reading and writing UFO source files; it requires:\n\n * `fs <https://pypi.org/pypi/fs>`__: (aka ``pyfilesystem2``) filesystem\n abstraction layer.\n\n * `enum34 <https://pypi.org/pypi/enum34>`__: backport for the built-in ``enum``\n module (only required on Python < 3.4).\n\n *Extra:* ``ufo``\n\n- ``Lib/fontTools/ttLib/woff2.py``\n\n Module to compress/decompress WOFF 2.0 web fonts; it requires:\n\n * `brotli <https://pypi.python.org/pypi/Brotli>`__: Python bindings of\n the Brotli compression library.\n\n *Extra:* ``woff``\n\n- ``Lib/fontTools/ttLib/sfnt.py``\n\n To better compress WOFF 1.0 web fonts, the following module can be used\n instead of the built-in ``zlib`` library:\n\n * `zopfli <https://pypi.python.org/pypi/zopfli>`__: Python bindings of\n the Zopfli compression library.\n\n *Extra:* ``woff``\n\n- ``Lib/fontTools/unicode.py``\n\n To display the Unicode character names when dumping the ``cmap`` table\n with ``ttx`` we use the ``unicodedata`` module in the Standard Library.\n The\u00a0version included in there varies between different Python versions.\n To use the latest available data, you can install:\n\n * `unicodedata2 <https://pypi.python.org/pypi/unicodedata2>`__:\n ``unicodedata`` backport for Python 3.x updated to the latest Unicode\n version 15.0.\n\n *Extra:* ``unicode``\n\n- ``Lib/fontTools/varLib/interpolatable.py``\n\n Module for finding wrong\u00a0contour/component order between different masters.\n It requires one of the following packages in order to solve the so-called\n \"minimum weight perfect matching problem in bipartite graphs\", or\n the Assignment problem:\n\n * `scipy <https://pypi.python.org/pypi/scipy>`__: the Scientific Library\n for Python, which internally uses `NumPy <https://pypi.python.org/pypi/numpy>`__\n arrays and hence is very fast;\n * `munkres <https://pypi.python.org/pypi/munkres>`__: a pure-Python\n module that implements the Hungarian or Kuhn-Munkres algorithm.\n\n To plot the results to a PDF or HTML format, you also need to install:\n\n * `pycairo <https://pypi.org/project/pycairo/>`__: Python bindings for the\n Cairo graphics library. Note that wheels are currently only available for\n Windows, for other platforms see pycairo's `installation instructions\n <https://pycairo.readthedocs.io/en/latest/getting_started.html>`__.\n\n *Extra:* ``interpolatable``\n\n- ``Lib/fontTools/varLib/plot.py``\n\n Module for visualizing DesignSpaceDocument and resulting VariationModel.\n\n * `matplotlib <https://pypi.org/pypi/matplotlib>`__: 2D plotting library.\n\n *Extra:* ``plot``\n\n- ``Lib/fontTools/misc/symfont.py``\n\n Advanced module for symbolic font statistics analysis; it requires:\n\n * `sympy <https://pypi.python.org/pypi/sympy>`__: the Python library for\n symbolic mathematics.\n\n *Extra:* ``symfont``\n\n- ``Lib/fontTools/t1Lib.py``\n\n To get the file creator\u00a0and type of Macintosh PostScript Type 1 fonts\n on Python 3 you need to install the following module, as the old ``MacOS``\n module is no longer included in Mac Python:\n\n * `xattr <https://pypi.python.org/pypi/xattr>`__: Python wrapper for\n extended filesystem attributes (macOS platform only).\n\n *Extra:* ``type1``\n\n- ``Lib/fontTools/ttLib/removeOverlaps.py``\n\n Simplify TrueType glyphs by merging overlapping contours and components.\n\n * `skia-pathops <https://pypi.python.org/pypy/skia-pathops>`__: Python\n bindings for the Skia library's PathOps module, performing boolean\n operations on paths (union, intersection, etc.).\n\n *Extra:* ``pathops``\n\n- ``Lib/fontTools/pens/cocoaPen.py`` and ``Lib/fontTools/pens/quartzPen.py``\n\n Pens for drawing glyphs with Cocoa ``NSBezierPath`` or ``CGPath`` require:\n\n * `PyObjC <https://pypi.python.org/pypi/pyobjc>`__: the bridge between\n Python and the Objective-C runtime (macOS platform only).\n\n- ``Lib/fontTools/pens/qtPen.py``\n\n Pen for drawing glyphs with Qt's ``QPainterPath``, requires:\n\n * `PyQt5 <https://pypi.python.org/pypi/PyQt5>`__: Python bindings for\n the Qt\u00a0cross platform UI and application toolkit.\n\n- ``Lib/fontTools/pens/reportLabPen.py``\n\n Pen to drawing glyphs as PNG images, requires:\n\n * `reportlab <https://pypi.python.org/pypi/reportlab>`__: Python toolkit\n for generating PDFs and graphics.\n\n- ``Lib/fontTools/pens/freetypePen.py``\n\n Pen to drawing glyphs with FreeType as raster images, requires:\n\n * `freetype-py <https://pypi.python.org/pypi/freetype-py>`__: Python binding\n for the FreeType library.\n \n- ``Lib/fontTools/ttLib/tables/otBase.py``\n\n Use the Harfbuzz library to serialize GPOS/GSUB using ``hb_repack`` method, requires:\n \n * `uharfbuzz <https://pypi.python.org/pypi/uharfbuzz>`__: Streamlined Cython\n bindings for the harfbuzz shaping engine\n \n *Extra:* ``repacker``\n\nHow to make a new release\n~~~~~~~~~~~~~~~~~~~~~~~~~\n\n1) Update ``NEWS.rst`` with all the changes since the last release. Write a\n changelog entry for each PR, with one or two short sentences summarizing it,\n as well as links to the PR and relevant issues addressed by the PR. Do not\n put a new title, the next command will do it for you.\n2) Use semantic versioning to decide whether the new release will be a 'major',\n 'minor' or 'patch' release. It's usually one of the latter two, depending on\n whether new backward compatible APIs were added, or simply some bugs were fixed.\n3) From inside a venv, first do ``pip install -r dev-requirements.txt``, then run\n the ``python setup.py release`` command from the tip of the ``main`` branch.\n By default this bumps the third or 'patch' digit only, unless you pass ``--major``\n or ``--minor`` to bump respectively the first or second digit.\n This bumps the package version string, extracts the changes since the latest\n version from ``NEWS.rst``, and uses that text to create an annotated git tag\n (or a signed git tag if you pass the ``--sign`` option and your git and Github\n account are configured for `signing commits <https://docs.github.com/en/github/authenticating-to-github/managing-commit-signature-verification/signing-commits>`__\n using a GPG key).\n It also commits an additional version bump which opens the main branch for\n the subsequent developmental cycle\n4) Push both the tag and commit to the upstream repository, by running the command\n ``git push --follow-tags``. Note: it may push other local tags as well, be\n careful.\n5) Let the CI build the wheel and source distribution packages and verify both\n get uploaded to the Python Package Index (PyPI).\n6) [Optional] Go to fonttools `Github Releases <https://github.com/fonttools/fonttools/releases>`__\n page and create a new release, copy-pasting the content of the git tag\n message. This way, the release notes are nicely formatted as markdown, and\n users watching the repo will get an email notification. One day we shall\n automate that too.\n\n\nAcknowledgements\n~~~~~~~~~~~~~~~~\n\nIn alphabetical order:\n\naschmitz, Olivier Berten, Samyak Bhuta, Erik van Blokland, Petr van Blokland,\nJelle Bosma, Sascha Brawer, Tom Byrer, Antonio Cavedoni, Fr\u00e9d\u00e9ric Coiffier,\nVincent Connare, David Corbett, Simon Cozens, Dave Crossland, Simon Daniels,\nPeter Dekkers, Behdad Esfahbod, Behnam Esfahbod, Hannes Famira, Sam Fishman,\nMatt Fontaine, Takaaki Fuji, Rob Hagemans, Yannis Haralambous, Greg Hitchcock,\nJeremie Hornus, Khaled Hosny, John Hudson, Denis Moyogo Jacquerye, Jack Jansen,\nTom Kacvinsky, Jens Kutilek, Antoine Leca, Werner Lemberg, Tal Leming, Peter\nLofting, Cosimo Lupo, Olli Meier, Masaya Nakamura, Dave Opstad, Laurence Penney,\nRoozbeh Pournader, Garret Rieger, Read Roberts, Colin Rofls, Guido van Rossum,\nJust van Rossum, Andreas Seidel, Georg Seifert, Chris Simpkins, Miguel Sousa,\nAdam Twardoch, Adrien T\u00e9tar, Vitaly Volkov, Paul Wise.\n\nCopyrights\n~~~~~~~~~~\n\n| Copyright (c) 1999-2004 Just van Rossum, LettError\n (just@letterror.com)\n| See `LICENSE <LICENSE>`__ for the full license.\n\nCopyright (c) 2000 BeOpen.com. All Rights Reserved.\n\nCopyright (c) 1995-2001 Corporation for National Research Initiatives.\nAll Rights Reserved.\n\nCopyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam. All\nRights Reserved.\n\nHave fun!\n\n.. |CI Build Status| image:: https://github.com/fonttools/fonttools/workflows/Test/badge.svg\n :target: https://github.com/fonttools/fonttools/actions?query=workflow%3ATest\n.. |Coverage Status| image:: https://codecov.io/gh/fonttools/fonttools/branch/main/graph/badge.svg\n :target: https://codecov.io/gh/fonttools/fonttools\n.. |PyPI| image:: https://img.shields.io/pypi/v/fonttools.svg\n :target: https://pypi.org/project/FontTools\n.. |Gitter Chat| image:: https://badges.gitter.im/fonttools-dev/Lobby.svg\n :alt: Join the chat at https://gitter.im/fonttools-dev/Lobby\n :target: https://gitter.im/fonttools-dev/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge\n\nChangelog\n~~~~~~~~~\n\n4.56.0 (released 2025-02-07)\n----------------------------\n\n- [varStore] Sort the input todo list with the same sorting key used for the opimizer's output (#3767).\n- [otData] Fix DeviceTable's ``DeltaValue`` repeat value which caused a crash after importing from XML and then compiling a GPOS containing Device tables (#3758).\n- [feaLib] Make ``FeatureLibError`` pickleable, so client can e.g. use feaLib to can compile features in parallel with multiprocessing (#3762).\n- [varLib/gvar] Removed workaround for old, long-fixed macOS bug about composite glyphs with all zero deltas (#1381, #1788).\n- [Docs] Updated ttLib documentation, beefed up TTFont and TTGlyphSet explanations (#3720).\n\n4.55.8 (released 2025-01-29)\n----------------------------\n\n- [MetaTools] Fixed bug in buildUCD.py script whereby the first non-header line of some UCD text file was being skipped. This affected in particular the U+00B7 (MIDDLE DOT) entry of ScriptExtensions.txt (#3756).\n\n4.55.7 (released 2025-01-28)\n----------------------------\n\n- Shorten the changelog included in PyPI package description to accommodate maximum length limit imposed by Azure DevOps. No actual code changes since v4.55.6 (#3754).\n\n4.55.6 (released 2025-01-24)\n----------------------------\n\n- [glyf] Fixed regression introduced in 4.55.5 when computing bounds of nested composite glyphs with transformed components (#3752).\n\n4.55.5 (released 2025-01-23)\n----------------------------\n\n- [glyf] Fixed recalcBounds of transformed components with unrounded coordinates (#3750).\n- [feaLib] Allow duplicate script/language statements (#3749).\n\n4.55.4 (released 2025-01-21)\n----------------------------\n\n- [bezierTools] Fixed ``splitCubicAtT`` sometimes not returning identical start/end points as result of numerical precision (#3742, #3743).\n- [feaLib/ast] Fixed docstring of ``AlternateSubstStatement`` (#3735).\n- [transform] Typing fixes (#3734).\n\n4.55.3 (released 2024-12-10)\n----------------------------\n\n- [Docs] fill out ttLib table section [#3716]\n- [feaLib] More efficient inline format 4 lookups [#3726]\n\n4.55.2 (released 2024-12-05)\n----------------------------\n\n- [Docs] update Sphinx config (#3712)\n- [designspaceLib] Allow axisOrdering to be set to zero (#3715)\n- [feaLib] Don\u2019t modify variable anchors in place (#3717)\n\n4.55.1 (released 2024-12-02)\n----------------------------\n\n- [ttGlyphSet] Support VARC CFF2 fonts (#3683)\n- [DecomposedTransform] Document and implement always skewY == 0 (#3697)\n- [varLib] \"Fix\" cython iup issue? (#3704)\n- Cython minor refactor (#3705)\n\n\n4.55.0 (released 2024-11-14)\n----------------------------\n\n- [cffLib.specializer] Adjust stack use calculation (#3689)\n- [varLib] Lets not add mac names if the rest of name doesn't have them (#3688)\n- [ttLib.reorderGlyphs] Update CFF table charstrings and charset (#3682)\n- [cffLib.specializer] Add cmdline to specialize a CFF2 font (#3675, #3679)\n- [CFF2] Lift uint16 VariationStore.length limitation (#3674)\n- [subset] consider variation selectors subsetting cmap14 (#3672)\n- [varLib.interpolatable] Support CFF2 fonts (#3670)\n- Set isfinal to true in XML parser for proper resource cleanup (#3669)\n- [removeOverlaps] Fix CFF CharString width (#3659)\n- [glyf] Add optimizeSize option (#3657)\n- Python 3.13 support (#3656)\n- [TupleVariation] Optimize for loading speed, not size (#3650, #3653)\n\n\n4.54.1 (released 2024-09-24)\n----------------------------\n\n- [unicodedata] Update to Unicode 16\n- [subset] Escape ``\\\\`` in doc string\n\n4.54.0 (released 2024-09-23)\n----------------------------\n\n- [Docs] Small docs cleanups by @n8willis (#3611)\n- [Docs] cleanup code blocks by @n8willis (#3627)\n- [Docs] fix Sphinx builds by @n8willis (#3625)\n- [merge] Minor fixes to documentation for merge by @drj11 (#3588)\n- [subset] Small tweaks to pyftsubset documentation by @RoelN (#3633)\n- [Tests] Do not require fonttools command to be available by @behdad (#3612)\n- [Tests] subset_test: add failing test to reproduce issue #3616 by @anthrotype (#3622)\n- [ttLib] NameRecordVisitor: include whole sequence of character variants' UI labels, not just the first by @anthrotype (#3617)\n- [varLib.avar] Reconstruct mappings from binary by @behdad (#3598)\n- [varLib.instancer] Fix visual artefacts with partial L2 instancing by @Hoolean (#3635)\n- [varLib.interpolatable] Support discrete axes in .designspace by @behdad (#3599)\n- [varLib.models] By default, assume OpenType-like normalized space by @behdad (#3601)\n\n4.53.1 (released 2024-07-05)\n----------------------------\n\n- [feaLib] Improve the sharing of inline chained lookups (#3559)\n- [otlLib] Correct the calculation of OS/2.usMaxContext with reversed chaining contextual single substitutions (#3569)\n- [misc.visitor] Visitors search the inheritance chain of objects they are visiting (#3581)\n\n4.53.0 (released 2024-05-31)\n----------------------------\n\n- [ttLib.removeOverlaps] Support CFF table to aid in downconverting CFF2 fonts (#3528)\n- [avar] Fix crash when accessing not-yet-existing attribute (#3550)\n- [docs] Add buildMathTable to otlLib.builder documentation (#3540)\n- [feaLib] Allow UTF-8 with BOM when reading features (#3495)\n- [SVGPathPen] Revert rounding coordinates to two decimal places by default (#3543)\n- [varLib.instancer] Refix output filename decision-making (#3545, #3544, #3548)\n\n4.52.4 (released 2024-05-27)\n----------------------------\n\n- [varLib.cff] Restore and deprecate convertCFFtoCFF2 that was removed in 4.52.0\n release as it is used by downstream projects (#3535).\n\n4.52.3 (released 2024-05-27)\n----------------------------\n\n- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file\n which caused the upload to PyPI to fail for 4.52.2. No other code changes.\n\n4.52.2 (released 2024-05-27)\n----------------------------\n\n- [varLib.interpolatable] Ensure that scipy/numpy output is JSON-serializable\n (#3522, #3526).\n- [housekeeping] Regenerate table lists, to fix pyinstaller packaging of the new\n ``VARC`` table (#3531, #3529).\n- [cffLib] Make CFFToCFF2 and CFF2ToCFF more robust (#3521, #3525).\n\n4.52.1 (released 2024-05-24)\n----------------------------\n\n- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file\n which caused the upload to PyPI to fail for 4.52.0. No other code changes.\n\n4.52.0 (released 2024-05-24)\n----------------------------\n\n- Added support for the new ``VARC`` (Variable Composite) table that is being\n proposed to OpenType spec (#3395). For more info:\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/VARC.md\n- [ttLib.__main__] Fixed decompiling all tables (90fed08).\n- [feaLib] Don't reference the same lookup index multiple times within the same\n feature record, it is only applied once anyway (#3520).\n- [cffLib] Moved methods to desubroutinize, remove hints and unused subroutines\n from subset module to cffLib (#3517).\n- [varLib.instancer] Added support for partial-instancing CFF2 tables! Also, added\n method to down-convert from CFF2 to CFF 1.0, and CLI entry points to convert\n CFF<->CFF2 (#3506).\n- [subset] Prune unused user name IDs even with --name-IDs='*' (#3410).\n- [ttx] use GNU-style getopt to intermix options and positional arguments (#3509).\n- [feaLib.variableScalar] Fixed ``value_at_location()`` method (#3491)\n- [psCharStrings] Shorten output of ``encodeFloat`` (#3492).\n- [bezierTools] Fix infinite-recursion in ``calcCubicArcLength`` (#3502).\n- [avar2] Implement ``avar2`` support in ``TTFont.getGlyphSet()`` (#3473).\n\n4.51.0 (released 2024-04-05)\n----------------------------\n\n- [ttLib] Optimization on loading aux fields (#3464).\n- [ttFont] Add reorderGlyphs (#3468).\n\n4.50.0 (released 2024-03-15)\n----------------------------\n\n- [pens] Added decomposing filter pens that draw components as regular contours (#3460).\n- [instancer] Drop explicit no-op axes from TupleVariations (#3457).\n- [cu2qu/ufo] Return set of modified glyph names from fonts_to_quadratic (#3456).\n\n4.49.0 (released 2024-02-15)\n----------------------------\n\n- [otlLib] Add API for building ``MATH`` table (#3446)\n\n4.48.1 (released 2024-02-06)\n----------------------------\n\n- Fixed uploading wheels to PyPI, no code changes since v4.48.0.\n\n4.48.0 (released 2024-02-06)\n----------------------------\n\n- [varLib] Do not log when there are no OTL tables to be merged.\n- [setup.py] Do not restrict lxml<5 any more, tests pass just fine with lxml>=5.\n- [feaLib] Remove glyph and class names length restrictions in FEA (#3424).\n- [roundingPens] Added ``transformRoundFunc`` parameter to the rounding pens to allow\n for custom rounding of the components' transforms (#3426).\n- [feaLib] Keep declaration order of ligature components within a ligature set, instead\n of sorting by glyph name (#3429).\n- [feaLib] Fixed ordering of alternates in ``aalt`` lookups, following the declaration\n order of feature references within the ``aalt`` feature block (#3430).\n- [varLib.instancer] Fixed a bug in the instancer's IUP optimization (#3432).\n- [sbix] Support sbix glyphs with new graphicType \"flip\" (#3433).\n- [svgPathPen] Added ``--glyphs`` option to dump the SVG paths for the named glyphs\n in the font (0572f78).\n- [designspaceLib] Added \"description\" attribute to ``<mappings>`` and ``<mapping>``\n elements, and allow multiple ``<mappings>`` elements to group ``<mapping>`` elements\n that are logically related (#3435, #3437).\n- [otlLib] Correctly choose the most compact GSUB contextual lookup format (#3439).\n\n4.47.2 (released 2024-01-11)\n----------------------------\n\nMinor release to fix uploading wheels to PyPI.\n\n4.47.1 (released 2024-01-11)\n----------------------------\n\n- [merge] Improve help message and add standard command line options (#3408)\n- [otlLib] Pass ``ttFont`` to ``name.addName`` in ``buildStatTable`` (#3406)\n- [featureVars] Re-use ``FeatureVariationRecord``'s when possible (#3413)\n\n4.47.0 (released 2023-12-18)\n----------------------------\n\n- [varLib.models] New API for VariationModel: ``getMasterScalars`` and\n ``interpolateFromValuesAndScalars``.\n- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,\n add a Summary page in the front, and an Index and Table-of-Contents in the back.\n Change the page size to Letter.\n- [Docs/designspaceLib] Defined a new ``public.fontInfo`` lib key, not used anywhere yet (#3358).\n\n4.46.0 (released 2023-12-02)\n----------------------------\n\n- [featureVars] Allow to register the same set of substitution rules to multiple features.\n The ``addFeatureVariations`` function can now take a list of featureTags; similarly, the\n lib key 'com.github.fonttools.varLib.featureVarsFeatureTag' can now take a\n comma-separateed string of feature tags (e.g. \"salt,ss01\") instead of a single tag (#3360).\n- [featureVars] Don't overwrite GSUB FeatureVariations, but append new records to it\n for features which are not already there. But raise ``VarLibError`` if the feature tag\n already has feature variations associated with it (#3363).\n- [varLib] Added ``addGSUBFeatureVariations`` function to add GSUB Feature Variations\n to an existing variable font from rules defined in a DesignSpace document (#3362).\n- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,\n a new test for \"underweight\" glyphs. The new test reports quite a few false-positives\n though. Please send feedback.\n\n4.45.1 (released 2023-11-23)\n----------------------------\n\n- [varLib.interpolatable] Various bugfixes and improvements, better reporting, reduced\n false positives.\n- [ttGlyphSet] Added option to not recalculate glyf bounds (#3348).\n\n4.45.0 (released 2023-11-20)\n----------------------------\n\n- [varLib.interpolatable] Vastly improved algorithms. Also available now is ``--pdf``\n and ``--html`` options to generate a PDF or HTML report of the interpolation issues.\n The PDF/HTML report showcases the problematic masters, the interpolated broken\n glyph, as well as the proposed fixed version.\n\n4.44.3 (released 2023-11-15)\n----------------------------\n\n- [subset] Only prune codepage ranges for OS/2.version >= 1, ignore otherwise (#3334).\n- [instancer] Ensure hhea vertical metrics stay in sync with OS/2 ones after instancing\n MVAR table containing 'hasc', 'hdsc' or 'hlgp' tags (#3297).\n\n4.44.2 (released 2023-11-14)\n----------------------------\n\n- [glyf] Have ``Glyph.recalcBounds`` skip empty components (base glyph with no contours)\n when computing the bounding box of composite glyphs. This simply restores the existing\n behavior before some changes were introduced in fonttools 4.44.0 (#3333).\n\n4.44.1 (released 2023-11-14)\n----------------------------\n\n- [feaLib] Ensure variable mark anchors are deep-copied while building since they\n get modified in-place and later reused (#3330).\n- [OS/2|subset] Added method to ``recalcCodePageRanges`` to OS/2 table class; added\n ``--prune-codepage-ranges`` to `fonttools subset` command (#3328, #2607).\n\n4.44.0 (released 2023-11-03)\n----------------------------\n\n- [instancer] Recalc OS/2 AvgCharWidth after instancing if default changes (#3317).\n- [otlLib] Make ClassDefBuilder class order match varLib.merger's, i.e. large\n classes first, then glyph lexicographic order (#3321, #3324).\n- [instancer] Allow not specifying any of min:default:max values and let be filled\n up with fvar's values (#3322, #3323).\n- [instancer] When running --update-name-table ignore axes that have no STAT axis\n values (#3318, #3319).\n- [Debg] When dumping to ttx, write the embedded JSON as multi-line string with\n indentation (92cbfee0d).\n- [varStore] Handle > 65535 items per encoding by splitting VarData subtable (#3310).\n- [subset] Handle null-offsets in MarkLigPos subtables.\n- [subset] Keep East Asian spacing fatures vhal, halt, chws, vchw by default (#3305).\n- [instancer.solver] Fixed case where axisDef < lower and upper < axisMax (#3304).\n- [glyf] Speed up compilation, mostly around ``recalcBounds`` (#3301).\n- [varLib.interpolatable] Speed it up when working on variable fonts, plus various\n micro-optimizations (#3300).\n- Require unicodedata2 >= 15.1.0 when installed with 'unicode' extra, contains UCD 15.1.\n\n4.43.1 (released 2023-10-06)\n----------------------------\n\n- [EBDT] Fixed TypeError exception in `_reverseBytes` method triggered when dumping\n some bitmap fonts with `ttx -z bitwise` option (#3162).\n- [v/hhea] Fixed UnboundLocalError exception in ``recalc`` method when no vmtx or hmtx\n tables are present (#3290).\n- [bezierTools] Fixed incorrectly typed cython local variable leading to TypeError when\n calling ``calcQuadraticArcLength`` (#3288).\n- [feaLib/otlLib] Better error message when building Coverage table with missing glyph (#3286).\n\n4.43.0 (released 2023-09-29)\n----------------------------\n\n- [subset] Set up lxml ``XMLParser(resolve_entities=False)`` when parsing OT-SVG documents\n to prevent XML External Entity (XXE) attacks (9f61271dc):\n https://codeql.github.com/codeql-query-help/python/py-xxe/\n- [varLib.iup] Added workaround for a Cython bug in ``iup_delta_optimize`` that was\n leading to IUP tolerance being incorrectly initialised, resulting in sub-optimal deltas\n (60126435d, cython/cython#5732).\n- [varLib] Added new command-line entry point ``fonttools varLib.avar`` to add an\n ``avar`` table to an existing VF from axes mappings in a .designspace file (0a3360e52).\n- [instancer] Fixed bug whereby no longer used variation regions were not correctly pruned\n after VarData optimization (#3268).\n- Added support for Python 3.12 (#3283).\n\n4.42.1 (released 2023-08-20)\n----------------------------\n\n- [t1Lib] Fixed several Type 1 issues (#3238, #3240).\n- [otBase/packer] Allow sharing tables reached by different offset sizes (#3241, #3236).\n- [varLib/merger] Fix Cursive attachment merging error when all anchors are NULL (#3248, #3247).\n- [ttLib] Fixed warning when calling ``addMultilingualName`` and ``ttFont`` parameter was not\n passed on to ``findMultilingualName`` (#3253).\n\n4.42.0 (released 2023-08-02)\n----------------------------\n\n- [varLib] Use sentinel value 0xFFFF to mark a glyph advance in hmtx/vmtx as non\n participating, allowing sparse masters to contain glyphs for variation purposes other\n than {H,V}VAR (#3235).\n- [varLib/cff] Treat empty glyphs in non-default masters as missing, thus not participating\n in CFF2 delta computation, similarly to how varLib already treats them for gvar (#3234).\n- Added varLib.avarPlanner script to deduce 'correct' avar v1 axis mappings based on\n glyph average weights (#3223).\n\n4.41.1 (released 2023-07-21)\n----------------------------\n\n- [subset] Fixed perf regression in v4.41.0 by making ``NameRecordVisitor`` only visit\n tables that do contain nameID references (#3213, #3214).\n- [varLib.instancer] Support instancing fonts containing null ConditionSet offsets in\n FeatureVariationRecords (#3211, #3212).\n- [statisticsPen] Report font glyph-average weight/width and font-wide slant.\n- [fontBuilder] Fixed head.created date incorrectly set to 0 instead of the current\n timestamp, regression introduced in v4.40.0 (#3210).\n- [varLib.merger] Support sparse ``CursivePos`` masters (#3209).\n\n4.41.0 (released 2023-07-12)\n----------------------------\n\n- [fontBuilder] Fixed bug in setupOS2 with default panose attribute incorrectly being\n set to a dict instead of a Panose object (#3201).\n- [name] Added method to ``removeUnusedNameRecords`` in the user range (#3185).\n- [varLib.instancer] Fixed issue with L4 instancing (moving default) (#3179).\n- [cffLib] Use latin1 so we can roundtrip non-ASCII in {Full,Font,Family}Name (#3202).\n- [designspaceLib] Mark <source name=\"...\"> as optional in docs (as it is in the code).\n- [glyf-1] Fixed drawPoints() bug whereby last cubic segment becomes quadratic (#3189, #3190).\n- [fontBuilder] Propagate the 'hidden' flag to the fvar Axis instance (#3184).\n- [fontBuilder] Update setupAvar() to also support avar 2, fixing ``_add_avar()`` call\n site (#3183).\n- Added new ``voltLib.voltToFea`` submodule (originally Tiro Typeworks' \"Volto\") for\n converting VOLT OpenType Layout sources to FEA format (#3164).\n\n4.40.0 (released 2023-06-12)\n----------------------------\n\n- Published native binary wheels to PyPI for all the python minor versions and platform\n and architectures currently supported that would benefit from this. They will include\n precompiled Cython-accelerated modules (e.g. cu2qu) without requiring to compile them\n from source. The pure-python wheel and source distribution will continue to be\n published as always (pip will automatically chose them when no binary wheel is\n available for the given platform, e.g. pypy). Use ``pip install --no-binary=fonttools fonttools``\n to expliclity request pip to install from the pure-python source.\n- [designspaceLib|varLib] Add initial support for specifying axis mappings and build\n ``avar2`` table from those (#3123).\n- [feaLib] Support variable ligature caret position (#3130).\n- [varLib|glyf] Added option to --drop-implied-oncurves; test for impliable oncurve\n points either before or after rounding (#3146, #3147, #3155, #3156).\n- [TTGlyphPointPen] Don't error with empty contours, simply ignore them (#3145).\n- [sfnt] Fixed str vs bytes remnant of py3 transition in code dealing with de/compiling\n WOFF metadata (#3129).\n- [instancer-solver] Fixed bug when moving default instance with sparse masters (#3139, #3140).\n- [feaLib] Simplify variable scalars that don\u2019t vary (#3132).\n- [pens] Added filter pen that explicitly emits closing line when lastPt != movePt (#3100).\n- [varStore] Improve optimize algorithm and better document the algorithm (#3124, #3127).\n Added ``quantization`` option (#3126).\n- Added CI workflow config file for building native binary wheels (#3121).\n- [fontBuilder] Added glyphDataFormat=0 option; raise error when glyphs contain cubic\n outlines but glyphDataFormat was not explicitly set to 1 (#3113, #3119).\n- [subset] Prune emptied GDEF.MarkGlyphSetsDef and remap indices; ensure GDEF is\n subsetted before GSUB and GPOS (#3114, #3118).\n- [xmlReader] Fixed issue whereby DSIG table data was incorrectly parsed (#3115, #2614).\n- [varLib/merger] Fixed merging of SinglePos with pos=0 (#3111, #3112).\n- [feaLib] Demote \"Feature has not been defined\" error to a warning when building aalt\n and referenced feature is empty (#3110).\n- [feaLib] Dedupe multiple substitutions with classes (#3105).\n\n4.39.4 (released 2023-05-10)\n----------------------------\n\n- [varLib.interpolatable] Allow for sparse masters (#3075)\n- [merge] Handle differing default/nominalWidthX in CFF (#3070)\n- [ttLib] Add missing main.py file to ttLib package (#3088)\n- [ttx] Fix missing composite instructions in XML (#3092)\n- [ttx] Fix split tables option to work on filenames containing '%' (#3096)\n- [featureVars] Process lookups for features other than rvrn last (#3099)\n- [feaLib] support multiple substitution with classes (#3103)\n\n4.39.3 (released 2023-03-28)\n----------------------------\n\n- [sbix] Fixed TypeError when compiling empty glyphs whose imageData is None, regression\n was introduced in v4.39 (#3059).\n- [ttFont] Fixed AttributeError on python <= 3.10 when opening a TTFont from a tempfile\n SpooledTemporaryFile, seekable method only added on python 3.11 (#3052).\n\n4.39.2 (released 2023-03-16)\n----------------------------\n\n- [varLib] Fixed regression introduced in 4.39.1 whereby an incomplete 'STAT' table\n would be built even though a DesignSpace v5 did contain 'STAT' definitions (#3045, #3046).\n\n4.39.1 (released 2023-03-16)\n----------------------------\n\n- [avar2] Added experimental support for reading/writing avar version 2 as specified in\n this draft proposal: https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md\n- [glifLib] Wrap underlying XML library exceptions with GlifLibError when parsing GLIFs,\n and also print the name and path of the glyph that fails to be parsed (#3042).\n- [feaLib] Consult avar for normalizing user-space values in ConditionSets and in\n VariableScalars (#3042, #3043).\n- [ttProgram] Handle string input to Program.fromAssembly() (#3038).\n- [otlLib] Added a config option to emit GPOS 7 lookups, currently disabled by default\n because of a macOS bug (#3034).\n- [COLRv1] Added method to automatically compute ClipBoxes (#3027).\n- [ttFont] Fixed getGlyphID to raise KeyError on missing glyphs instead of returning\n None. The regression was introduced in v4.27.0 (#3032).\n- [sbix] Fixed UnboundLocalError: cannot access local variable 'rawdata' (#3031).\n- [varLib] When building VF, do not overwrite a pre-existing ``STAT`` table that was built\n with feaLib from FEA feature file. Also, added support for building multiple VFs\n defined in Designspace v5 from ``fonttools varLib`` script (#3024).\n- [mtiLib] Only add ``Debg`` table with lookup names when ``FONTTOOLS_LOOKUP_DEBUGGING``\n env variable is set (#3023).\n\n4.39.0 (released 2023-03-06)\n----------------------------\n\n- [mtiLib] Optionally add `Debg` debug info for MTI feature builds (#3018).\n- [ttx] Support reading input file from standard input using special `-` character,\n similar to existing `-o -` option to write output to standard output (#3020).\n- [cython] Prevent ``cython.compiled`` raise AttributeError if cython not installed\n properly (#3017).\n- [OS/2] Guard against ZeroDivisionError when calculating xAvgCharWidth in the unlikely\n scenario no glyph has non-zero advance (#3015).\n- [subset] Recompute xAvgCharWidth independently of --no-prune-unicode-ranges,\n previously the two options were involuntarily bundled together (#3012).\n- [fontBuilder] Add ``debug`` parameter to addOpenTypeFeatures method to add source\n debugging information to the font in the ``Debg`` private table (#3008).\n- [name] Make NameRecord `__lt__` comparison not fail on Unicode encoding errors (#3006).\n- [featureVars] Fixed bug in ``overlayBox`` (#3003, #3005).\n- [glyf] Added experimental support for cubic bezier curves in TrueType glyf table, as\n outlined in glyf v1 proposal (#2988):\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md\n- Added new qu2cu module and related qu2cuPen, the reverse of cu2qu for converting\n TrueType quadratic splines to cubic bezier curves (#2993).\n- [glyf] Added experimental support for reading and writing Variable Composites/Components\n as defined in glyf v1 spec proposal (#2958):\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-varComposites.md.\n- [pens]: Added `addVarComponent` method to pen protocols' base classes, which pens can implement\n to handle varcomponents (by default they get decomposed) (#2958).\n- [misc.transform] Added DecomposedTransform class which implements an affine transformation\n with separate translate, rotation, scale, skew, and transformation-center components (#2598)\n- [sbix] Ensure Glyph.referenceGlyphName is set; fixes error after dumping and\n re-compiling sbix table with 'dupe' glyphs (#2984).\n- [feaLib] Be cleverer when merging chained single substitutions into same lookup\n when they are specified using the inline notation (#2150, #2974).\n- [instancer] Clamp user-inputted axis ranges to those of fvar (#2959).\n- [otBase/subset] Define ``__getstate__`` for BaseTable so that a copied/pickled 'lazy'\n object gets its own OTTableReader to read from; incidentally fixes a bug while\n subsetting COLRv1 table containing ClipBoxes on python 3.11 (#2965, #2968).\n- [sbix] Handle glyphs with \"dupe\" graphic type on compile correctly (#2963).\n- [glyf] ``endPointsOfContours`` field should be unsigned! Kudos to behdad for\n spotting one of the oldest bugs in FT. Probably nobody has ever dared to make\n glyphs with more than 32767 points... (#2957).\n- [feaLib] Fixed handling of ``ignore`` statements with unmarked glyphs to match\n makeotf behavior, which assumes the first glyph is marked (#2950).\n- Reformatted code with ``black`` and enforce new code style via CI check (#2925).\n- [feaLib] Sort name table entries following OT spec prescribed order in the builder (#2927).\n- [cu2quPen] Add Cu2QuMultiPen that converts multiple outlines at a time in\n interpolation compatible way; its methods take a list of tuples arguments\n that would normally be passed to individual segment pens, and at the end it\n dispatches the converted outlines to each pen (#2912).\n- [reverseContourPen/ttGlyphPen] Add outputImpliedClosingLine option (#2913, #2914,\n #2921, #2922, #2995).\n- [gvar] Avoid expanding all glyphs unnecessarily upon compile (#2918).\n- [scaleUpem] Fixed bug whereby CFF2 vsindex was scaled; it should not (#2893, #2894).\n- [designspaceLib] Add DS.getAxisByTag and refactor getAxis (#2891).\n- [unicodedata] map Zmth<->math in ot_tag_{to,from}_script (#1737, #2889).\n- [woff2] Support encoding/decoding OVERLAP_SIMPLE glyf flags (#2576, #2884).\n- [instancer] Update OS/2 class and post.italicAngle when default moved (L4)\n- Dropped support for Python 3.7 which reached EOL, fontTools requires 3.8+.\n- [instancer] Fixed instantiateFeatureVariations logic when a rule range becomes\n default-applicable (#2737, #2880).\n- [ttLib] Add main to ttFont and ttCollection that just decompile and re-compile the\n input font (#2869).\n- [featureVars] Insert 'rvrn' lookup at the beginning of LookupList, to work around bug\n in Apple implementation of 'rvrn' feature which the spec says it should be processed\n early whereas on macOS 10.15 it follows lookup order (#2140, #2867).\n- [instancer/mutator] Remove 'DSIG' table if present.\n- [svgPathPen] Don't close path in endPath(), assume open unless closePath() (#2089, #2865).\n\n4.38.0 (released 2022-10-21)\n----------------------------\n\n- [varLib.instancer] Added support for L4 instancing, i.e. moving the default value of\n an axis while keeping it variable. Thanks Behdad! (#2728, #2861).\n It's now also possible to restrict an axis min/max values beyond the current default\n value, e.g. a font wght has min=100, def=400, max=900 and you want a partial VF that\n only varies between 500 and 700, you can now do that.\n You can either specify two min/max values (wght=500:700), and the new default will be\n set to either the minimum or maximum, depending on which one is closer to the current\n default (e.g. 500 in this case). Or you can specify three values (e.g. wght=500:600:700)\n to specify the new default value explicitly.\n- [otlLib/featureVars] Set a few Count values so one doesn't need to compile the font\n to update them (#2860).\n- [varLib.models] Make extrapolation work for 2-master models as well where one master\n is at the default location (#2843, #2846).\n Add optional extrapolate=False to normalizeLocation() (#2847, #2849).\n- [varLib.cff] Fixed sub-optimal packing of CFF2 deltas by no longer rounding them to\n integer (#2838).\n- [scaleUpem] Calculate numShorts in VarData after scale; handle CFF hintmasks (#2840).\n\n4.37.4 (released 2022-09-30)\n----------------------------\n\n- [subset] Keep nameIDs used by CPAL palette entry labels (#2837).\n- [varLib] Avoid negative hmtx values when creating font from variable CFF2 font (#2827).\n- [instancer] Don't prune stat.ElidedFallbackNameID (#2828).\n- [unicodedata] Update Scripts/Blocks to Unicode 15.0 (#2833).\n\n4.37.3 (released 2022-09-20)\n----------------------------\n\n- Fix arguments in calls to (glyf) glyph.draw() and drawPoints(), whereby offset wasn't\n correctly passed down; this fix also exposed a second bug, where lsb and tsb were not\n set (#2824, #2825, adobe-type-tools/afdko#1560).\n\n4.37.2 (released 2022-09-15)\n----------------------------\n\n- [subset] Keep CPAL table and don't attempt to prune unused color indices if OT-SVG\n table is present even if COLR table was subsetted away; OT-SVG may be referencing the\n CPAL table; for now we assume that's the case (#2814, #2815).\n- [varLib.instancer] Downgrade GPOS/GSUB version if there are no more FeatureVariations\n after instancing (#2812).\n- [subset] Added ``--no-lazy`` to optionally load fonts eagerly (mostly to ease\n debugging of table lazy loading, no practical effects) (#2807).\n- [varLib] Avoid building empty COLR.DeltaSetIndexMap with only identity mappings (#2803).\n- [feaLib] Allow multiple value record types (by promoting to the most general format)\n within the same PairPos subtable; e.g. this allows variable and non variable kerning\n rules to share the same subtable. This also fixes a bug whereby some kerning pairs\n would become unreachable while shapiong because of premature subtable splitting (#2772, #2776).\n- [feaLib] Speed up ``VarScalar`` by caching models for recurring master locations (#2798).\n- [feaLib] Optionally cythonize ``feaLib.lexer``, speeds up parsing FEA a bit (#2799).\n- [designspaceLib] Avoid crash when handling unbounded rule conditions (#2797).\n- [post] Don't crash if ``post`` legacy format 1 is malformed/improperly used (#2786)\n- [gvar] Don't be \"lazy\" (load all glyph variations up front) when TTFont.lazy=False (#2771).\n- [TTFont] Added ``normalizeLocation`` method to normalize a location dict from the\n font's defined axes space (also known as \"user space\") into the normalized (-1..+1)\n space. It applies ``avar`` mapping if the font contains an ``avar`` table (#2789).\n- [TTVarGlyphSet] Support drawing glyph instances from CFF2 variable glyph set (#2784).\n- [fontBuilder] Do not error when building cmap if there are zero code points (#2785).\n- [varLib.plot] Added ability to plot a variation model and set of accompaning master\n values corresponding to the model's master locations into a pyplot figure (#2767).\n- [Snippets] Added ``statShape.py`` script to draw statistical shape of a glyph as an\n ellips (requires pycairo) (baecd88).\n- [TTVarGlyphSet] implement drawPoints natively, avoiding going through\n SegmentToPointPen (#2778).\n- [TTVarGlyphSet] Fixed bug whereby drawing a composite glyph multiple times, its\n components would shif; needed an extra copy (#2774).\n\n4.37.1 (released 2022-08-24)\n----------------------------\n\n- [subset] Fixed regression introduced with v4.37.0 while subsetting the VarStore of\n ``HVAR`` and ``VVAR`` tables, whereby an ``AttributeError: subset_varidxes`` was\n thrown because an apparently unused import statement (with the side-effect of\n dynamically binding that ``subset_varidxes`` method to the VarStore class) had been\n accidentally deleted in an unrelated PR (#2679, #2773).\n- [pens] Added ``cairoPen`` (#2678).\n- [gvar] Read ``gvar`` more lazily by not parsing all of the ``glyf`` table (#2771).\n- [ttGlyphSet] Make ``drawPoints(pointPen)`` method work for CFF fonts as well via\n adapter pen (#2770).\n\n4.37.0 (released 2022-08-23)\n----------------------------\n\n- [varLib.models] Reverted PR #2717 which added support for \"narrow tents\" in v4.36.0,\n as it introduced a regression (#2764, #2765). It will be restored in upcoming release\n once we found a solution to the bug.\n- [cff.specializer] Fixed issue in charstring generalizer with the ``blend`` operator\n (#2750, #1975).\n- [varLib.models] Added support for extrapolation (#2757).\n- [ttGlyphSet] Ensure the newly added ``_TTVarGlyphSet`` inherits from ``_TTGlyphSet``\n to keep backward compatibility with existing API (#2762).\n- [kern] Allow compiling legacy kern tables with more than 64k entries (d21cfdede).\n- [visitor] Added new visitor API to traverse tree of objects and dispatch based\n on the attribute type: cf. ``fontTools.misc.visitor`` and ``fontTools.ttLib.ttVisitor``. Added ``fontTools.ttLib.scaleUpem`` module that uses the latter to\n change a font's units-per-em and scale all the related fields accordingly (#2718,\n #2755).\n\n4.36.0 (released 2022-08-17)\n----------------------------\n\n- [varLib.models] Use a simpler model that generates narrower \"tents\" (regions, master\n supports) whenever possible: specifically when any two axes that actively \"cooperate\"\n (have masters at non-zero positions for both axes) have a complete set of intermediates.\n The simpler algorithm produces fewer overlapping regions and behaves better with\n respect to rounding at the peak positions than the generic solver, always matching\n intermediate masters exactly, instead of maximally 0.5 units off. This may be useful\n when 100% metrics compatibility is desired (#2218, #2717).\n- [feaLib] Remove warning when about ``GDEF`` not being built when explicitly not\n requested; don't build one unconditonally even when not requested (#2744, also works\n around #2747).\n- [ttFont] ``TTFont.getGlyphSet`` method now supports selecting a location that\n represents an instance of a variable font (supports both user-scale and normalized\n axes coordinates via the ``normalized=False`` parameter). Currently this only works\n for TrueType-flavored variable fonts (#2738).\n\n4.35.0 (released 2022-08-15)\n----------------------------\n\n- [otData/otConverters] Added support for 'biased' PaintSweepGradient start/end angles\n to match latest COLRv1 spec (#2743).\n- [varLib.instancer] Fixed bug in ``_instantiateFeatureVariations`` when at the same\n time pinning one axis and restricting the range of a subsequent axis; the wrong axis\n tag was being used in the latter step (as the records' axisIdx was updated in the\n preceding step but looked up using the old axes order in the following step) (#2733,\n #2734).\n- [mtiLib] Pad script tags with space when less than 4 char long (#1727).\n- [merge] Use ``'.'`` instead of ``'#'`` in duplicate glyph names (#2742).\n- [gvar] Added support for lazily loading glyph variations (#2741).\n- [varLib] In ``build_many``, we forgot to pass on ``colr_layer_reuse`` parameter to\n the ``build`` method (#2730).\n- [svgPathPen] Add a main that prints SVG for input text (6df779fd).\n- [cffLib.width] Fixed off-by-one in optimized values; previous code didn't match the\n code block above it (2963fa50).\n- [varLib.interpolatable] Support reading .designspace and .glyphs files (via optional\n ``glyphsLib``).\n- Compile some modules with Cython when available and building/installing fonttools\n from source: ``varLib.iup`` (35% faster), ``pens.momentsPen`` (makes\n ``varLib.interpolatable`` 3x faster).\n- [feaLib] Allow features to be built for VF without also building a GDEF table (e.g.\n only build GSUB); warn when GDEF would be needed but isn't requested (#2705, 2694).\n- [otBase] Fixed ``AttributeError`` when uharfbuzz < 0.23.0 and 'repack' method is\n missing (32aa8eaf). Use new ``uharfbuzz.repack_with_tag`` when available (since\n uharfbuzz>=0.30.0), enables table-specific optimizations to be performed during\n repacking (#2724).\n- [statisticsPen] By default report all glyphs (4139d891). Avoid division-by-zero\n (52b28f90).\n- [feaLib] Added missing required argument to FeatureLibError exception (#2693)\n- [varLib.merge] Fixed error during error reporting (#2689). Fixed undefined\n ``NotANone`` variable (#2714).\n\n4.34.4 (released 2022-07-07)\n----------------------------\n\n- Fixed typo in varLib/merger.py that causes NameError merging COLR glyphs\n containing more than 255 layers (#2685).\n\n4.34.3 (released 2022-07-07)\n----------------------------\n\n- [designspaceLib] Don't make up bad PS names when no STAT data (#2684)\n\n4.34.2 (released 2022-07-06)\n----------------------------\n\n- [varStore/subset] fixed KeyError exception to do with NO_VARIATION_INDEX while\n subsetting varidxes in GPOS/GDEF (a08140d).\n\n4.34.1 (released 2022-07-06)\n----------------------------\n\n- [instancer] When optimizing HVAR/VVAR VarStore, use_NO_VARIATION_INDEX=False to avoid\n including NO_VARIATION_INDEX in AdvWidthMap, RsbMap, LsbMap mappings, which would\n push the VarIdx width to maximum (4bytes), which is not desirable. This also fixes\n a hard crash when attempting to subset a varfont after it had been partially instanced\n with use_NO_VARIATION_INDEX=True.\n\n4.34.0 (released 2022-07-06)\n----------------------------\n\n- [instancer] Set RIBBI bits in head and OS/2 table when cutting instances and the\n subfamily nameID=2 contains strings like 'Italic' or 'Bold' (#2673).\n- [otTraverse] Addded module containing methods for traversing trees of otData tables\n (#2660).\n- [otTables] Made DeltaSetIndexMap TTX dump less verbose by omitting no-op entries\n (#2660).\n- [colorLib.builder] Added option to disable PaintColrLayers's reuse of layers from\n LayerList (#2660).\n- [varLib] Added support for merging multiple master COLRv1 tables into a variable\n COLR table (#2660, #2328). Base color glyphs of same name in different masters must have\n identical paint graph structure (incl. number of layers, palette indices, number\n of color line stops, corresponding paint formats at each level of the graph),\n but can differ in the variable fields (e.g. PaintSolid.Alpha). PaintVar* tables\n are produced when this happens and a VarStore/DeltaSetIndexMap is added to the\n variable COLR table. It is possible for non-default masters to be 'sparse', i.e.\n omit some of the color glyphs present in the default master.\n- [feaLib] Let the Parser set nameIDs 1 through 6 that were previously reserved (#2675).\n- [varLib.varStore] Support NO_VARIATION_INDEX in optimizer and instancer.\n- [feaLib] Show all missing glyphs at once at end of parsing (#2665).\n- [varLib.iup] Rewrite force-set conditions and limit DP loopback length (#2651).\n For Noto Sans, IUP time drops from 23s down to 9s, with only a slight size increase\n in the final font. This basically turns the algorithm from O(n^3) into O(n).\n- [featureVars] Report about missing glyphs in substitution rules (#2654).\n- [mutator/instancer] Added CLI flag to --no-recalc-timestamp (#2649).\n- [SVG] Allow individual SVG documents in SVG OT table to be compressed on uncompressed,\n and remember that when roundtripping to/from ttx. The SVG.docList is now a list\n of SVGDocument namedtuple-like dataclass containing an extra ``compressed`` field,\n and no longer a bare 3-tuple (#2645).\n- [designspaceLib] Check for descriptor types with hasattr() to allow custom classes\n that don't inherit the default descriptors (#2634).\n- [subset] Enable sharing across subtables of extension lookups for harfbuzz packing\n (#2626). Updated how table packing falls back to fontTools from harfbuzz (#2668).\n- [subset] Updated default feature tags following current Harfbuzz (#2637).\n- [svgLib] Fixed regex for real number to support e.g. 1e-4 in addition to 1.0e-4.\n Support parsing negative rx, ry on arc commands (#2596, #2611).\n- [subset] Fixed subsetting SinglePosFormat2 when ValueFormat=0 (#2603).\n\n4.33.3 (released 2022-04-26)\n----------------------------\n\n- [designspaceLib] Fixed typo in ``deepcopyExceptFonts`` method, preventing font\n references to be transferred (#2600). Fixed another typo in the name of ``Range``\n dataclass's ``__post_init__`` magic method (#2597).\n\n4.33.2 (released 2022-04-22)\n----------------------------\n\n- [otBase] Make logging less verbose when harfbuzz fails to serialize. Do not exit\n at the first failure but continue attempting to fix offset overflow error using\n the pure-python serializer even when the ``USE_HARFBUZZ_REPACKER`` option was\n explicitly set to ``True``. This is normal with fonts with relatively large\n tables, at least until hb.repack implements proper table splitting.\n\n4.33.1 (released 2022-04-22)\n----------------------------\n\n- [otlLib] Put back the ``FONTTOOLS_GPOS_COMPACT_MODE`` environment variable to fix\n regression in ufo2ft (and thus fontmake) introduced with v4.33.0 (#2592, #2593).\n This is deprecated and will be removed one ufo2ft gets updated to use the new\n config setup.\n\n4.33.0 (released 2022-04-21)\n----------------------------\n\n- [OS/2 / merge] Automatically recalculate ``OS/2.xAvgCharWidth`` after merging\n fonts with ``fontTools.merge`` (#2591, #2538).\n- [misc/config] Added ``fontTools.misc.configTools`` module, a generic configuration\n system (#2416, #2439).\n Added ``fontTools.config`` module, a fontTools-specific configuration\n system using ``configTools`` above.\n Attached a ``Config`` object to ``TTFont``.\n- [otlLib] Replaced environment variable for GPOS compression level with an\n equivalent option using the new config system.\n- [designspaceLib] Incremented format version to 5.0 (#2436).\n Added discrete axes, variable fonts, STAT information, either design- or\n user-space location on instances.\n Added ``fontTools.designspaceLib.split`` module to split a designspace\n into sub-spaces that interpolate and that represent the variable fonts\n listed in the document.\n Made instance names optional and allow computing them from STAT data instead.\n Added ``fontTools.designspaceLib.statNames`` module.\n Allow instances to have the same location as a previously defined STAT label.\n Deprecated some attributes:\n ``SourceDescriptor``: ``copyLib``, ``copyInfo``, ``copyGroups``, ``copyFeatures``.\n ``InstanceDescriptor``: ``kerning``, ``info``; ``glyphs``: use rules or sparse\n sources.\n For both, ``location``: use the more explicit designLocation.\n Note: all are soft deprecations and existing code should keep working.\n Updated documentation for Python methods and the XML format.\n- [varLib] Added ``build_many`` to build several variable fonts from a single\n designspace document (#2436).\n Added ``fontTools.varLib.stat`` module to build STAT tables from a designspace\n document.\n- [otBase] Try to use the Harfbuzz Repacker for packing GSUB/GPOS tables when\n ``uharfbuzz`` python bindings are available (#2552). Disable it by setting the\n \"fontTools.ttLib.tables.otBase:USE_HARFBUZZ_REPACKER\" config option to ``False``.\n If the option is set explicitly to ``True`` but ``uharfbuzz`` can't be imported\n or fails to serialize for any reasons, an error will be raised (ImportError or\n uharfbuzz errors).\n- [CFF/T2] Ensure that ``pen.closePath()`` gets called for CFF2 charstrings (#2577).\n Handle implicit CFF2 closePath within ``T2OutlineExtractor`` (#2580).\n\n4.32.0 (released 2022-04-08)\n----------------------------\n\n- [otlLib] Disable GPOS7 optimization to work around bug in Apple CoreText.\n Always force Chaining GPOS8 for now (#2540).\n- [glifLib] Added ``outputImpliedClosingLine=False`` parameter to ``Glyph.draw()``,\n to control behaviour of ``PointToSegmentPen`` (6b4e2e7).\n- [varLib.interpolatable] Check for wrong contour starting point (#2571).\n- [cffLib] Remove leftover ``GlobalState`` class and fix calls to ``TopDictIndex()``\n (#2569, #2570).\n- [instancer] Clear ``AxisValueArray`` if it is empty after instantiating (#2563).\n\n4.31.2 (released 2022-03-22)\n----------------------------\n\n- [varLib] fix instantiation of GPOS SinglePos values (#2555).\n\n4.31.1 (released 2022-03-18)\n----------------------------\n\n- [subset] fix subsetting OT-SVG when glyph id attribute is on the root ``<svg>``\n element (#2553).\n\n4.31.0 (released 2022-03-18)\n----------------------------\n\n- [ttCollection] Fixed 'ResourceWarning: unclosed file' warning (#2549).\n- [varLib.merger] Handle merging SinglePos with valueformat=0 (#2550).\n- [ttFont] Update glyf's glyphOrder when calling TTFont.setGlyphOrder() (#2544).\n- [ttFont] Added ``ensureDecompiled`` method to load all tables irrespective\n of the ``lazy`` attribute (#2551).\n- [otBase] Added ``iterSubTable`` method to iterate over BaseTable's children of\n type BaseTable; useful for traversing a tree of otTables (#2551).\n\n4.30.0 (released 2022-03-10)\n----------------------------\n\n- [varLib] Added debug logger showing the glyph name for which ``gvar`` is built (#2542).\n- [varLib.errors] Fixed undefined names in ``FoundANone`` and ``UnsupportedFormat``\n exceptions (ac4d5611).\n- [otlLib.builder] Added ``windowsNames`` and ``macNames`` (bool) parameters to the\n ``buildStatTabe`` function, so that one can select whether to only add one or both\n of the two sets (#2528).\n- [t1Lib] Added the ability to recreate PostScript stream (#2504).\n- [name] Added ``getFirstDebugName``, ``getBest{Family,SubFamily,Full}Name`` methods (#2526).\n\n4.29.1 (released 2022-02-01)\n----------------------------\n\n- [colorLib] Fixed rounding issue with radial gradient's start/end circles inside\n one another (#2521).\n- [freetypePen] Handle rotate/skew transform when auto-computing width/height of the\n buffer; raise PenError wen missing moveTo (#2517)\n\n4.29.0 (released 2022-01-24)\n----------------------------\n\n- [ufoLib] Fixed illegal characters and expanded reserved filenames (#2506).\n- [COLRv1] Don't emit useless PaintColrLayers of lenght=1 in LayerListBuilder (#2513).\n- [ttx] Removed legacy ``waitForKeyPress`` method on Windows (#2509).\n- [pens] Added FreeTypePen that uses ``freetype-py`` and the pen protocol for\n rasterizating outline paths (#2494).\n- [unicodedata] Updated the script direction list to Unicode 14.0 (#2484).\n Bumped unicodedata2 dependency to 14.0 (#2499).\n- [psLib] Fixed type of ``fontName`` in ``suckfont`` (#2496).\n\n4.28.5 (released 2021-12-19)\n----------------------------\n\n- [svgPathPen] Continuation of #2471: make sure all occurrences of ``str()`` are now\n replaced with user-defined ``ntos`` callable.\n- [merge] Refactored code into submodules, plus several bugfixes and improvements:\n fixed duplicate-glyph-resolution GSUB-lookup generation code; use tolerance in glyph\n comparison for empty glyph's width; ignore space of default ignorable glyphs;\n downgrade duplicates-resolution missing-GSUB from assert to warn; added --drop-tables\n option (#2473, #2475, #2476).\n\n4.28.4 (released 2021-12-15)\n----------------------------\n\n- [merge] Merge GDEF marksets in Lookups properly (#2474).\n- [feaLib] Have ``fontTools feaLib`` script exit with error code when build fails (#2459)\n- [svgPathPen] Added ``ntos`` option to customize number formatting (e.g. rounding) (#2471).\n- [subset] Speed up subsetting of large CFF fonts (#2467).\n- [otTables] Speculatively promote lookups to extension to speed up compilation. If the\n offset to lookup N is too big to fit in a ushort, the offset to lookup N+1 is going to\n be too big as well, so we promote to extension all lookups from lookup N onwards (#2465).\n\n4.28.3 (released 2021-12-03)\n----------------------------\n\n- [subset] Fixed bug while subsetting ``COLR`` table, whereby incomplete layer records\n pointing to missing glyphs were being retained leading to ``struct.error`` upon\n compiling. Make it so that ``glyf`` glyph closure, which follows the ``COLR`` glyph\n closure, does not influence the ``COLR`` table subsetting (#2461, #2462).\n- [docs] Fully document the ``cmap`` and ``glyf`` tables (#2454, #2457).\n- [colorLib.unbuilder] Fixed CLI by deleting no longer existing parameter (180bb1867).\n\n4.28.2 (released 2021-11-22)\n----------------------------\n\n- [otlLib] Remove duplicates when building coverage (#2433).\n- [docs] Add interrogate configuration (#2443).\n- [docs] Remove comment about missing \u201cstart\u201d optional argument to ``calcChecksum`` (#2448).\n- [cu2qu/cli] Adapt to the latest ufoLib2.\n- [subset] Support subsetting SVG table and remove it from the list of drop by default tables (#534).\n- [subset] add ``--pretty-svg`` option to pretty print SVG table contents (#2452).\n- [merge] Support merging ``CFF`` tables (CID-keyed ``CFF`` is still not supported) (#2447).\n- [merge] Support ``--output-file`` (#2447).\n- [docs] Split table docs into individual pages (#2444).\n- [feaLib] Forbid empty classes (#2446).\n- [docs] Improve documentation for ``fontTools.ttLib.ttFont`` (#2442).\n\n4.28.1 (released 2021-11-08)\n----------------------------\n\n- [subset] Fixed AttributeError while traversing a color glyph's Paint graph when there is no\n LayerList, which is optional (#2441).\n\n4.28.0 (released 2021-11-05)\n----------------------------\n\n- Dropped support for EOL Python 3.6, require Python 3.7 (#2417).\n- [ufoLib/glifLib] Make filename-clash checks faster by using a set instead of a list (#2422).\n- [subset] Don't crash if optional ClipList and LayerList are ``None`` (empty) (#2424, 2439).\n- [OT-SVG] Removed support for old deprecated version 1 and embedded color palettes,\n which were never officially part of the OpenType SVG spec. Upon compile, reuse offsets\n to SVG documents that are identical (#2430).\n- [feaLib] Added support for Variable Feature File syntax. This is experimental and subject\n to change until it is finalized in the Adobe FEA spec (#2432).\n- [unicodedata] Update Scripts/ScriptExtensions/Blocks to UnicodeData 14.0 (#2437).\n\n4.27.1 (released 2021-09-23)\n----------------------------\n\n- [otlLib] Fixed error when chained contextual lookup builder overflows (#2404, #2411).\n- [bezierTools] Fixed two floating-point bugs: one when computing `t` for a point\n lying on an almost horizontal/vertical line; another when computing the intersection\n point between a curve and a line (#2413).\n\n4.27.0 (released 2021-09-14)\n----------------------------\n\n- [ttLib/otTables] Cleaned up virtual GID handling: allow virtual GIDs in ``Coverage``\n and ``ClassDef`` readers; removed unused ``allowVID`` argument from ``TTFont``\n constructor, and ``requireReal`` argument in ``TTFont.getGlyphID`` method.\n Make ``TTFont.setGlyphOrder`` clear reverse glyphOrder map, and assume ``glyphOrder``\n internal attribute is never modified outside setGlyphOrder; added ``TTFont.getGlyphNameMany``\n and ``getGlyphIDMany`` (#1536, #1654, #2334, #2398).\n- [py23] Dropped internal use of ``fontTools.py23`` module to fix deprecation warnings\n in client code that imports from fontTools (#2234, #2399, #2400).\n- [subset] Fix subsetting COLRv1 clip boxes when font is loaded lazily (#2408).\n\n4.26.2 (released 2021-08-09)\n----------------------------\n\n- [otTables] Added missing ``CompositeMode.PLUS`` operator (#2390).\n\n4.26.1 (released 2021-08-03)\n----------------------------\n\n- [transform] Added ``transformVector`` and ``transformVectors`` methods to the\n ``Transform`` class. Similar to ``transformPoint`` but ignore the translation\n part (#2386).\n\n4.26.0 (released 2021-08-03)\n----------------------------\n\n- [xmlWriter] Default to ``\"\\n\"`` for ``newlinestr`` instead of platform-specific\n ``os.linesep`` (#2384).\n- [otData] Define COLRv1 ClipList and ClipBox (#2379).\n- [removeOverlaps/instancer] Added --ignore-overlap-errors option to work around\n Skia PathOps.Simplify bug (#2382, #2363, google/fonts#3365).\n- NOTE: This will be the last version to support Python 3.6. FontTools will require\n Python 3.7 or above from the next release (#2350)\n\n4.25.2 (released 2021-07-26)\n----------------------------\n\n- [COLRv1] Various changes to sync with the latest CORLv1 draft spec. In particular:\n define COLR.VarIndexMap, remove/inline ColorIndex struct, add VarIndexBase to ``PaintVar*`` tables (#2372);\n add reduced-precicion specialized transform Paints;\n define Angle as fraction of half circle encoded as F2Dot14;\n use FWORD (int16) for all Paint center coordinates;\n change PaintTransform to have an offset to Affine2x3;\n- [ttLib] when importing XML, only set sfntVersion if the font has no reader and is empty (#2376)\n\n4.25.1 (released 2021-07-16)\n----------------------------\n\n- [ttGlyphPen] Fixed bug in ``TTGlyphPointPen``, whereby open contours (i.e. starting\n with segmentType \"move\") would throw ``NotImplementedError``. They are now treated\n as if they are closed, like with the ``TTGlyphPen`` (#2364, #2366).\n\n4.25.0 (released 2021-07-05)\n----------------------------\n\n- [tfmLib] Added new library for parsing TeX Font Metric (TFM) files (#2354).\n- [TupleVariation] Make shared tuples order deterministic on python < 3.7 where\n Counter (subclass of dict) doesn't remember insertion order (#2351, #2353).\n- [otData] Renamed COLRv1 structs to remove 'v1' suffix and match the updated draft\n spec: 'LayerV1List' -> 'LayerList', 'BaseGlyphV1List' -> 'BaseGlyphList',\n 'BaseGlyphV1Record' -> 'BaseGlyphPaintRecord' (#2346).\n Added 8 new ``PaintScale*`` tables: with/without centers, uniform vs non-uniform.\n Added ``*AroundCenter`` variants to ``PaintRotate`` and ``PaintSkew``: the default\n versions no longer have centerX/Y, but default to origin.\n ``PaintRotate``, ``PaintSkew`` and ``PaintComposite`` formats were re-numbered.\n NOTE: these are breaking changes; clients using the experimental COLRv1 API will\n have to be updated (#2348).\n- [pointPens] Allow ``GuessSmoothPointPen`` to accept a tolerance. Fixed call to\n ``math.atan2`` with x/y parameters inverted. Sync the code with fontPens (#2344).\n- [post] Fixed parsing ``post`` table format 2.0 when it contains extra garbage\n at the end of the stringData array (#2314).\n- [subset] drop empty features unless 'size' with FeatureParams table (#2324).\n- [otlLib] Added ``otlLib.optimize`` module; added GPOS compaction algorithm.\n The compaction can be run on existing fonts with ``fonttools otlLib.optimize``\n or using the snippet ``compact_gpos.py``. There's experimental support for\n compacting fonts at compilation time using an environment variable, but that\n might be removed later (#2326).\n\n4.24.4 (released 2021-05-25)\n----------------------------\n\n- [subset/instancer] Fixed ``AttributeError`` when instantiating a VF that\n contains GPOS ValueRecords with ``Device`` tables but without the respective\n non-Device values (e.g. ``XAdvDevice`` without ``XAdvance``). When not\n explicitly set, the latter are assumed to be 0 (#2323).\n\n4.24.3 (released 2021-05-20)\n----------------------------\n\n- [otTables] Fixed ``AttributeError`` in methods that split LigatureSubst,\n MultipleSubst and AlternateSubst subtables when an offset overflow occurs.\n The ``Format`` attribute was removed in v4.22.0 (#2319).\n\n4.24.2 (released 2021-05-20)\n----------------------------\n\n- [ttGlyphPen] Fixed typing annotation of TTGlyphPen glyphSet parameter (#2315).\n- Fixed two instances of DeprecationWarning: invalid escape sequence (#2311).\n\n4.24.1 (released 2021-05-20)\n----------------------------\n\n- [subset] Fixed AttributeError when SinglePos subtable has None Value (ValueFormat 0)\n (#2312, #2313).\n\n4.24.0 (released 2021-05-17)\n----------------------------\n\n- [pens] Add ``ttGlyphPen.TTGlyphPointPen`` similar to ``TTGlyphPen`` (#2205).\n\n4.23.1 (released 2021-05-14)\n----------------------------\n\n- [subset] Fix ``KeyError`` after subsetting ``COLR`` table that initially contains\n both v0 and v1 color glyphs when the subset only requested v1 glyphs; we were\n not pruning the v0 portion of the table (#2308).\n- [colorLib] Set ``LayerV1List`` attribute to ``None`` when empty, it's optional\n in CORLv1 (#2308).\n\n4.23.0 (released 2021-05-13)\n----------------------------\n\n- [designspaceLib] Allow to use ``\\\\UNC`` absolute paths on Windows (#2299, #2306).\n- [varLib.merger] Fixed bug where ``VarLibMergeError`` was raised with incorrect\n parameters (#2300).\n- [feaLib] Allow substituting a glyph class with ``NULL`` to delete multiple glyphs\n (#2303).\n- [glyf] Fixed ``NameError`` exception in ``getPhantomPoints`` (#2295, #2305).\n- [removeOverlaps] Retry pathops.simplify after rounding path coordinates to integers\n if it fails the first time using floats, to work around a rare and hard to debug\n Skia bug (#2288).\n- [varLib] Added support for building, reading, writing and optimizing 32-bit\n ``ItemVariationStore`` as used in COLRv1 table (#2285).\n- [otBase/otConverters] Add array readers/writers for int types (#2285).\n- [feaLib] Allow more than one lookahead glyph/class in contextual positioning with\n \"value at end\" (#2293, #2294).\n- [COLRv1] Default varIdx should be 0xFFFFFFFF (#2297, #2298).\n- [pens] Make RecordingPointPen actually pass on identifiers; replace asserts with\n explicit ``PenError`` exception (#2284).\n- [mutator] Round lsb for CF2 fonts as well (#2286).\n\n4.22.1 (released 2021-04-26)\n----------------------------\n\n- [feaLib] Skip references to named lookups if the lookup block definition\n is empty, similarly to makeotf. This also fixes an ``AttributeError`` while\n generating ``aalt`` feature (#2276, #2277).\n- [subset] Fixed bug with ``--no-hinting`` implementation for Device tables (#2272,\n #2275). The previous code was alwyas dropping Device tables if no-hinting was\n requested, but some Device tables (DeltaFormat=0x8000) are also used to encode\n variation indices and need to be retained.\n- [otBase] Fixed bug in getting the ValueRecordSize when decompiling ``MVAR``\n table with ``lazy=True`` (#2273, #2274).\n- [varLib/glyf/gvar] Optimized and simplified ``GlyphCoordinates`` and\n ``TupleVariation`` classes, use ``bytearray`` where possible, refactored\n phantom-points calculations. We measured about 30% speedup in total time\n of loading master ttfs, building gvar, and saving (#2261, #2266).\n- [subset] Fixed ``AssertionError`` while pruning unused CPAL palettes when\n ``0xFFFF`` is present (#2257, #2259).\n\n4.22.0 (released 2021-04-01)\n----------------------------\n\n- [ttLib] Remove .Format from Coverage, ClassDef, SingleSubst, LigatureSubst,\n AlternateSubst, MultipleSubst (#2238).\n ATTENTION: This will change your TTX dumps!\n- [misc.arrayTools] move Vector to its own submodule, and rewrite as a tuple\n subclass (#2201).\n- [docs] Added a terminology section for varLib (#2209).\n- [varLib] Move rounding to VariationModel, to avoid error accumulation from\n multiple deltas (#2214)\n- [varLib] Explain merge errors in more human-friendly terms (#2223, #2226)\n- [otlLib] Correct some documentation (#2225)\n- [varLib/otlLib] Allow merging into VariationFont without first saving GPOS\n PairPos2 (#2229)\n- [subset] Improve PairPosFormat2 subsetting (#2221)\n- [ttLib] TTFont.save: create file on disk as late as possible (#2253)\n- [cffLib] Add missing CFF2 dict operators LanguageGroup and ExpansionFactor\n (#2249)\n ATTENTION: This will change your TTX dumps!\n\n4.21.1 (released 2021-02-26)\n----------------------------\n\n- [pens] Reverted breaking change that turned ``AbstractPen`` and ``AbstractPointPen``\n into abstract base classes (#2164, #2198).\n\n4.21.0 (released 2021-02-26)\n----------------------------\n\n- [feaLib] Indent anchor statements in ``asFea()`` to make them more legible and\n diff-able (#2193).\n- [pens] Turn ``AbstractPen`` and ``AbstractPointPen`` into abstract base classes\n (#2164).\n- [feaLib] Added support for parsing and building ``STAT`` table from AFDKO feature\n files (#2039).\n- [instancer] Added option to update name table of generated instance using ``STAT``\n table's axis values (#2189).\n- [bezierTools] Added functions to compute bezier point-at-time, as well as line-line,\n curve-line and curve-curve intersections (#2192).\n\n4.20.0 (released 2021-02-15)\n----------------------------\n\n- [COLRv1] Added ``unbuildColrV1`` to deconstruct COLRv1 otTables to raw json-able\n data structure; it does the reverse of ``buildColrV1`` (#2171).\n- [feaLib] Allow ``sub X by NULL`` sequence to delete a glyph (#2170).\n- [arrayTools] Fixed ``Vector`` division (#2173).\n- [COLRv1] Define new ``PaintSweepGradient`` (#2172).\n- [otTables] Moved ``Paint.Format`` enum class outside of ``Paint`` class definition,\n now named ``PaintFormat``. It was clashing with paint instance ``Format`` attribute\n and thus was breaking lazy load of COLR table which relies on magic ``__getattr__``\n (#2175).\n- [COLRv1] Replace hand-coded builder functions with otData-driven dynamic\n implementation (#2181).\n- [COLRv1] Define additional static (non-variable) Paint formats (#2181).\n- [subset] Added support for subsetting COLR v1 and CPAL tables (#2174, #2177).\n- [fontBuilder] Allow ``setupFvar`` to optionally take ``designspaceLib.AxisDescriptor``\n objects. Added new ``setupAvar`` method. Support localised names for axes and\n named instances (#2185).\n\n4.19.1 (released 2021-01-28)\n----------------------------\n\n- [woff2] An initial off-curve point with an overlap flag now stays an off-curve\n point after compression.\n\n4.19.0 (released 2021-01-25)\n----------------------------\n\n- [codecs] Handle ``errors`` parameter different from 'strict' for the custom\n extended mac encodings (#2137, #2132).\n- [featureVars] Raise better error message when a script is missing the required\n default language system (#2154).\n- [COLRv1] Avoid abrupt change caused by rounding ``PaintRadialGradient.c0`` when\n the start circle almost touches the end circle's perimeter (#2148).\n- [COLRv1] Support building unlimited lists of paints as 255-ary trees of\n ``PaintColrLayers`` tables (#2153).\n- [subset] Prune redundant format-12 cmap subtables when all non-BMP characters\n are dropped (#2146).\n- [basePen] Raise ``MissingComponentError`` instead of bare ``KeyError`` when a\n referenced component is missing (#2145).\n\n4.18.2 (released 2020-12-16)\n----------------------------\n\n- [COLRv1] Implemented ``PaintTranslate`` paint format (#2129).\n- [varLib.cff] Fixed unbound local variable error (#1787).\n- [otlLib] Don't crash when creating OpenType class definitions if some glyphs\n occur more than once (#2125).\n\n4.18.1 (released 2020-12-09)\n----------------------------\n\n- [colorLib] Speed optimization for ``LayerV1ListBuilder`` (#2119).\n- [mutator] Fixed missing tab in ``interpolate_cff2_metrics`` (0957dc7a).\n\n4.18.0 (released 2020-12-04)\n----------------------------\n\n- [COLRv1] Update to latest draft: added ``PaintRotate`` and ``PaintSkew`` (#2118).\n- [woff2] Support new ``brotlicffi`` bindings for PyPy (#2117).\n- [glifLib] Added ``expectContentsFile`` parameter to ``GlyphSet``, for use when\n reading existing UFOs, to comply with the specification stating that a\n ``contents.plist`` file must exist in a glyph set (#2114).\n- [subset] Allow ``LangSys`` tags in ``--layout-scripts`` option (#2112). For example:\n ``--layout-scripts=arab.dflt,arab.URD,latn``; this will keep ``DefaultLangSys``\n and ``URD`` language for ``arab`` script, and all languages for ``latn`` script.\n- [varLib.interpolatable] Allow UFOs to be checked; report open paths, non existant\n glyphs; add a ``--json`` option to produce a machine-readable list of\n incompatibilities\n- [pens] Added ``QuartzPen`` to create ``CGPath`` from glyph outlines on macOS.\n Requires pyobjc (#2107).\n- [feaLib] You can export ``FONTTOOLS_LOOKUP_DEBUGGING=1`` to enable feature file\n debugging info stored in ``Debg`` table (#2106).\n- [otlLib] Build more efficient format 1 and format 2 contextual lookups whenever\n possible (#2101).\n\n4.17.1 (released 2020-11-16)\n----------------------------\n\n- [colorLib] Fixed regression in 4.17.0 when building COLR v0 table; when color\n layers are stored in UFO lib plist, we can't distinguish tuples from lists so\n we need to accept either types (e5439eb9, googlefonts/ufo2ft/issues#426).\n\n4.17.0 (released 2020-11-12)\n----------------------------\n\n- [colorLib/otData] Updated to latest draft ``COLR`` v1 spec (#2092).\n- [svgLib] Fixed parsing error when arc commands' boolean flags are not separated\n by space or comma (#2094).\n- [varLib] Interpret empty non-default glyphs as 'missing', if the default glyph is\n not empty (#2082).\n- [feaLib.builder] Only stash lookup location for ``Debg`` if ``Builder.buildLookups_``\n has cooperated (#2065, #2067).\n- [varLib] Fixed bug in VarStore optimizer (#2073, #2083).\n- [varLib] Add designspace lib key for custom feavar feature tag (#2080).\n- Add HashPointPen adapted from psautohint. With this pen, a hash value of a glyph\n can be computed, which can later be used to detect glyph changes (#2005).\n\n4.16.1 (released 2020-10-05)\n----------------------------\n\n- [varLib.instancer] Fixed ``TypeError`` exception when instantiating a VF with\n a GSUB table 1.1 in which ``FeatureVariations`` attribute is present but set to\n ``None`` -- indicating that optional ``FeatureVariations`` is missing (#2077).\n- [glifLib] Make ``x`` and ``y`` attributes of the ``point`` element required\n even when validation is turned off, and raise a meaningful ``GlifLibError``\n message when that happens (#2075).\n\n4.16.0 (released 2020-09-30)\n----------------------------\n\n- [removeOverlaps] Added new module and ``removeOverlaps`` function that merges\n overlapping contours and components in TrueType glyphs. It requires the\n `skia-pathops <https://github.com/fonttools/skia-pathops>`__ module.\n Note that removing overlaps invalidates the TrueType hinting (#2068).\n- [varLib.instancer] Added ``--remove-overlaps`` command-line option.\n The ``overlap`` option in ``instantiateVariableFont`` now takes an ``OverlapMode``\n enum: 0: KEEP_AND_DONT_SET_FLAGS, 1: KEEP_AND_SET_FLAGS (default), and 2: REMOVE.\n The latter is equivalent to calling ``removeOverlaps`` on the generated static\n instance. The option continues to accept ``bool`` value for backward compatibility.\n\n\n4.15.0 (released 2020-09-21)\n----------------------------\n\n- [plistlib] Added typing annotations to plistlib module. Set up mypy static\n typechecker to run automatically on CI (#2061).\n- [ttLib] Implement private ``Debg`` table, a reverse-DNS namespaced JSON dict.\n- [feaLib] Optionally add an entry into the ``Debg`` table with the original\n lookup name (if any), feature name / script / language combination (if any),\n and original source filename and line location. Annotate the ttx output for\n a lookup with the information from the Debg table (#2052).\n- [sfnt] Disabled checksum checking by default in ``SFNTReader`` (#2058).\n- [Docs] Document ``mtiLib`` module (#2027).\n- [varLib.interpolatable] Added checks for contour node count and operation type\n of each node (#2054).\n- [ttLib] Added API to register custom table packer/unpacker classes (#2055).\n\n4.14.0 (released 2020-08-19)\n----------------------------\n\n- [feaLib] Allow anonymous classes in LookupFlags definitions (#2037).\n- [Docs] Better document DesignSpace rules processing order (#2041).\n- [ttLib] Fixed 21-year old bug in ``maxp.maxComponentDepth`` calculation (#2044,\n #2045).\n- [varLib.models] Fixed misspelled argument name in CLI entry point (81d0042a).\n- [subset] When subsetting GSUB v1.1, fixed TypeError by checking whether the\n optional FeatureVariations table is present (e63ecc5b).\n- [Snippets] Added snippet to show how to decompose glyphs in a TTF (#2030).\n- [otlLib] Generate GSUB type 5 and GPOS type 7 contextual lookups where appropriate\n (#2016).\n\n4.13.0 (released 2020-07-10)\n----------------------------\n\n- [feaLib/otlLib] Moved lookup subtable builders from feaLib to otlLib; refactored\n some common code (#2004, #2007).\n- [docs] Document otlLib module (#2009).\n- [glifLib] Fixed bug with some UFO .glif filenames clashing on case-insensitive\n filesystems (#2001, #2002).\n- [colorLib] Updated COLRv1 implementation following changes in the draft spec:\n (#2008, googlefonts/colr-gradients-spec#24).\n\n4.12.1 (released 2020-06-16)\n----------------------------\n\n- [_n_a_m_e] Fixed error in ``addMultilingualName`` with one-character names.\n Only attempt to recovered malformed UTF-16 data from a ``bytes`` string,\n not from unicode ``str`` (#1997, #1998).\n\n4.12.0 (released 2020-06-09)\n----------------------------\n\n- [otlLib/varLib] Ensure that the ``AxisNameID`` in the ``STAT`` and ``fvar``\n tables is grater than 255 as per OpenType spec (#1985, #1986).\n- [docs] Document more modules in ``fontTools.misc`` package: ``filenames``,\n ``fixedTools``, ``intTools``, ``loggingTools``, ``macCreatorType``, ``macRes``,\n ``plistlib`` (#1981).\n- [OS/2] Don't calculate whole sets of unicode codepoints, use faster and more memory\n efficient ranges and bisect lookups (#1984).\n- [voltLib] Support writing back abstract syntax tree as VOLT data (#1983).\n- [voltLib] Accept DO_NOT_TOUCH_CMAP keyword (#1987).\n- [subset/merge] Fixed a namespace clash involving a private helper class (#1955).\n\n4.11.0 (released 2020-05-28)\n----------------------------\n\n- [feaLib] Introduced ``includeDir`` parameter on Parser and IncludingLexer to\n explicitly specify the directory to search when ``include()`` statements are\n encountered (#1973).\n- [ufoLib] Silently delete duplicate glyphs within the same kerning group when reading\n groups (#1970).\n- [ttLib] Set version of COLR table when decompiling COLRv1 (commit 9d8a7e2).\n\n4.10.2 (released 2020-05-20)\n----------------------------\n\n- [sfnt] Fixed ``NameError: SimpleNamespace`` while reading TTC header. The regression\n was introduced with 4.10.1 after removing ``py23`` star import.\n\n4.10.1 (released 2020-05-19)\n----------------------------\n\n- [sfnt] Make ``SFNTReader`` pickleable even when TTFont is loaded with lazy=True\n option and thus keeps a reference to an external file (#1962, #1967).\n- [feaLib.ast] Restore backward compatibility (broken in 4.10 with #1905) for\n ``ChainContextPosStatement`` and ``ChainContextSubstStatement`` classes.\n Make them accept either list of lookups or list of lists of lookups (#1961).\n- [docs] Document some modules in ``fontTools.misc`` package: ``arrayTools``,\n ``bezierTools`` ``cliTools`` and ``eexec`` (#1956).\n- [ttLib._n_a_m_e] Fixed ``findMultilingualName()`` when name record's ``string`` is\n encoded as bytes sequence (#1963).\n\n4.10.0 (released 2020-05-15)\n----------------------------\n\n- [varLib] Allow feature variations to be active across the entire space (#1957).\n- [ufoLib] Added support for ``formatVersionMinor`` in UFO's ``fontinfo.plist`` and for\n ``formatMinor`` attribute in GLIF file as discussed in unified-font-object/ufo-spec#78.\n No changes in reading or writing UFOs until an upcoming (non-0) minor update of the\n UFO specification is published (#1786).\n- [merge] Fixed merging fonts with different versions of ``OS/2`` table (#1865, #1952).\n- [subset] Fixed ``AttributeError`` while subsetting ``ContextSubst`` and ``ContextPos``\n Format 3 subtable (#1879, #1944).\n- [ttLib.table._m_e_t_a] if data happens to be ascii, emit comment in TTX (#1938).\n- [feaLib] Support multiple lookups per glyph position (#1905).\n- [psCharStrings] Use inheritance to avoid repeated code in initializer (#1932).\n- [Doc] Improved documentation for the following modules: ``afmLib`` (#1933), ``agl``\n (#1934), ``cffLib`` (#1935), ``cu2qu`` (#1937), ``encodings`` (#1940), ``feaLib``\n (#1941), ``merge`` (#1949).\n- [Doc] Split off developer-centric info to new page, making front page of docs more\n user-focused. List all utilities and sub-modules with brief descriptions.\n Make README more concise and focused (#1914).\n- [otlLib] Add function to build STAT table from high-level description (#1926).\n- [ttLib._n_a_m_e] Add ``findMultilingualName()`` method (#1921).\n- [unicodedata] Update ``RTL_SCRIPTS`` for Unicode 13.0 (#1925).\n- [gvar] Sort ``gvar`` XML output by glyph name, not glyph order (#1907, #1908).\n- [Doc] Added help options to ``fonttools`` command line tool (#1913, #1920).\n Ensure all fonttools CLI tools have help documentation (#1948).\n- [ufoLib] Only write fontinfo.plist when there actually is content (#1911).\n\n4.9.0 (released 2020-04-29)\n---------------------------\n\n- [subset] Fixed subsetting of FeatureVariations table. The subsetter no longer drops\n FeatureVariationRecords that have empty substitutions as that will keep the search\n going and thus change the logic. It will only drop empty records that occur at the\n end of the FeatureVariationRecords array (#1881).\n- [subset] Remove FeatureVariations table and downgrade GSUB/GPOS to version 0x10000\n when FeatureVariations contain no FeatureVariationRecords after subsetting (#1903).\n- [agl] Add support for legacy Adobe Glyph List of glyph names in ``fontTools.agl``\n (#1895).\n- [feaLib] Ignore superfluous script statements (#1883).\n- [feaLib] Hide traceback by default on ``fonttools feaLib`` command line.\n Use ``--traceback`` option to show (#1898).\n- [feaLib] Check lookup index in chaining sub/pos lookups and print better error\n message (#1896, #1897).\n- [feaLib] Fix building chained alt substitutions (#1902).\n- [Doc] Included all fontTools modules in the sphinx-generated documentation, and\n published it to ReadTheDocs for continuous documentation of the fontTools project\n (#1333). Check it out at https://fonttools.readthedocs.io/. Thanks to Chris Simpkins!\n- [transform] The ``Transform`` class is now subclass of ``typing.NamedTuple``. No\n change in functionality (#1904).\n\n\n4.8.1 (released 2020-04-17)\n---------------------------\n\n- [feaLib] Fixed ``AttributeError: 'NoneType' has no attribute 'getAlternateGlyphs'``\n when ``aalt`` feature references a chain contextual substitution lookup\n (googlefonts/fontmake#648, #1878).\n\n4.8.0 (released 2020-04-16)\n---------------------------\n\n- [feaLib] If Parser is initialized without a ``glyphNames`` parameter, it cannot\n distinguish between a glyph name containing an hyphen, or a range of glyph names;\n instead of raising an error, it now interprets them as literal glyph names, while\n also outputting a logging warning to alert user about the ambiguity (#1768, #1870).\n- [feaLib] When serializing AST to string, emit spaces around hyphens that denote\n ranges. Also, fixed an issue with CID ranges when round-tripping AST->string->AST\n (#1872).\n- [Snippets/otf2ttf] In otf2ttf.py script update LSB in hmtx to match xMin (#1873).\n- [colorLib] Added experimental support for building ``COLR`` v1 tables as per\n the `colr-gradients-spec <https://github.com/googlefonts/colr-gradients-spec/blob/main/colr-gradients-spec.md>`__\n draft proposal. **NOTE**: both the API and the XML dump of ``COLR`` v1 are\n susceptible to change while the proposal is being discussed and formalized (#1822).\n\n4.7.0 (released 2020-04-03)\n---------------------------\n\n- [cu2qu] Added ``fontTools.cu2qu`` package, imported from the original\n `cu2qu <https://github.com/googlefonts/cu2qu>`__ project. The ``cu2qu.pens`` module\n was moved to ``fontTools.pens.cu2quPen``. The optional cu2qu extension module\n can be compiled by installing `Cython <https://cython.org/>`__ before installing\n fonttools from source (i.e. git repo or sdist tarball). The wheel package that\n is published on PyPI (i.e. the one ``pip`` downloads, unless ``--no-binary``\n option is used), will continue to be pure-Python for now (#1868).\n\n4.6.0 (released 2020-03-24)\n---------------------------\n\n- [varLib] Added support for building variable ``BASE`` table version 1.1 (#1858).\n- [CPAL] Added ``fromRGBA`` method to ``Color`` class (#1861).\n\n\n4.5.0 (released 2020-03-20)\n---------------------------\n\n- [designspaceLib] Added ``add{Axis,Source,Instance,Rule}Descriptor`` methods to\n ``DesignSpaceDocument`` class, to initialize new descriptor objects using keyword\n arguments, and at the same time append them to the current document (#1860).\n- [unicodedata] Update to Unicode 13.0 (#1859).\n\n4.4.3 (released 2020-03-13)\n---------------------------\n\n- [varLib] Always build ``gvar`` table for TrueType-flavored Variable Fonts,\n even if it contains no variation data. The table is required according to\n the OpenType spec (#1855, #1857).\n\n4.4.2 (released 2020-03-12)\n---------------------------\n\n- [ttx] Annotate ``LookupFlag`` in XML dump with comment explaining what bits\n are set and what they mean (#1850).\n- [feaLib] Added more descriptive message to ``IncludedFeaNotFound`` error (#1842).\n\n4.4.1 (released 2020-02-26)\n---------------------------\n\n- [woff2] Skip normalizing ``glyf`` and ``loca`` tables if these are missing from\n a font (e.g. in NotoColorEmoji using ``CBDT/CBLC`` tables).\n- [timeTools] Use non-localized date parsing in ``timestampFromString``, to fix\n error when non-English ``LC_TIME`` locale is set (#1838, #1839).\n- [fontBuilder] Make sure the CFF table generated by fontBuilder can be used by varLib\n without having to compile and decompile the table first. This was breaking in\n converting the CFF table to CFF2 due to some unset attributes (#1836).\n\n4.4.0 (released 2020-02-18)\n---------------------------\n\n- [colorLib] Added ``fontTools.colorLib.builder`` module, initially with ``buildCOLR``\n and ``buildCPAL`` public functions. More color font formats will follow (#1827).\n- [fontBuilder] Added ``setupCOLR`` and ``setupCPAL`` methods (#1826).\n- [ttGlyphPen] Quantize ``GlyphComponent.transform`` floats to ``F2Dot14`` to fix\n round-trip issue when computing bounding boxes of transformed components (#1830).\n- [glyf] If a component uses reference points (``firstPt`` and ``secondPt``) for\n alignment (instead of X and Y offsets), compute the effective translation offset\n *after* having applied any transform (#1831).\n- [glyf] When all glyphs have zero contours, compile ``glyf`` table data as a single\n null byte in order to pass validation by OTS and Windows (#1829).\n- [feaLib] Parsing feature code now ensures that referenced glyph names are part of\n the known glyph set, unless a glyph set was not provided.\n- [varLib] When filling in the default axis value for a missing location of a source or\n instance, correctly map the value forward.\n- [varLib] The avar table can now contain mapping output values that are greater than\n OR EQUAL to the preceeding value, as the avar specification allows this.\n- [varLib] The errors of the module are now ordered hierarchically below VarLibError.\n See #1821.\n\n4.3.0 (released 2020-02-03)\n---------------------------\n\n- [EBLC/CBLC] Fixed incorrect padding length calculation for Format 3 IndexSubTable\n (#1817, #1818).\n- [varLib] Fixed error when merging OTL tables and TTFonts were loaded as ``lazy=True``\n (#1808, #1809).\n- [varLib] Allow to use master fonts containing ``CFF2`` table when building VF (#1816).\n- [ttLib] Make ``recalcBBoxes`` option work also with ``CFF2`` table (#1816).\n- [feaLib] Don't reset ``lookupflag`` in lookups defined inside feature blocks.\n They will now inherit the current ``lookupflag`` of the feature. This is what\n Adobe ``makeotf`` also does in this case (#1815).\n- [feaLib] Fixed bug with mixed single/multiple substitutions. If a single substitution\n involved a glyph class, we were incorrectly using only the first glyph in the class\n (#1814).\n\n4.2.5 (released 2020-01-29)\n---------------------------\n\n- [feaLib] Do not fail on duplicate multiple substitutions, only warn (#1811).\n- [subset] Optimize SinglePos subtables to Format 1 if all ValueRecords are the same\n (#1802).\n\n4.2.4 (released 2020-01-09)\n---------------------------\n\n- [unicodedata] Update RTL_SCRIPTS for Unicode 11 and 12.\n\n4.2.3 (released 2020-01-07)\n---------------------------\n\n- [otTables] Fixed bug when splitting `MarkBasePos` subtables as offsets overflow.\n The mark class values in the split subtable were not being updated, leading to\n invalid mark-base attachments (#1797, googlefonts/noto-source#145).\n- [feaLib] Only log a warning instead of error when features contain duplicate\n substitutions (#1767).\n- [glifLib] Strip XML comments when parsing with lxml (#1784, #1785).\n\n4.2.2 (released 2019-12-12)\n---------------------------\n\n- [subset] Fixed issue with subsetting FeatureVariations table when the index\n of features changes as features get dropped. The feature index need to be\n remapped to point to index of the remaining features (#1777, #1782).\n- [fontBuilder] Added `addFeatureVariations` method to `FontBuilder` class. This\n is a shorthand for calling `featureVars.addFeatureVariations` on the builder's\n TTFont object (#1781).\n- [glyf] Fixed the flags bug in glyph.drawPoints() like we did for glyph.draw()\n (#1771, #1774).\n\n4.2.1 (released 2019-12-06)\n---------------------------\n\n- [glyf] Use the ``flagOnCurve`` bit mask in ``glyph.draw()``, so that we ignore\n the ``overlap`` flag that may be set when instantiating variable fonts (#1771).\n\n4.2.0 (released 2019-11-28)\n---------------------------\n\n- [pens] Added the following pens:\n\n * ``roundingPen.RoundingPen``: filter pen that rounds coordinates and components'\n offsets to integer;\n * ``roundingPen.RoundingPointPen``: like the above, but using PointPen protocol.\n * ``filterPen.FilterPointPen``: base class for filter point pens;\n * ``transformPen.TransformPointPen``: filter point pen to apply affine transform;\n * ``recordingPen.RecordingPointPen``: records and replays point-pen commands.\n\n- [ttGlyphPen] Always round float coordinates and component offsets to integers\n (#1763).\n- [ufoLib] When converting kerning groups from UFO2 to UFO3, avoid confusing\n groups with the same name as one of the glyphs (#1761, #1762,\n unified-font-object/ufo-spec#98).\n\n4.1.0 (released 2019-11-18)\n---------------------------\n\n- [instancer] Implemented restricting axis ranges (level 3 partial instancing).\n You can now pass ``{axis_tag: (min, max)}`` tuples as input to the\n ``instantiateVariableFont`` function. Note that changing the default axis\n position is not supported yet. The command-line script also accepts axis ranges\n in the form of colon-separated float values, e.g. ``wght=400:700`` (#1753, #1537).\n- [instancer] Never drop STAT ``DesignAxis`` records, but only prune out-of-range\n ``AxisValue`` records.\n- [otBase/otTables] Enforce that VarStore.RegionAxisCount == fvar.axisCount, even\n when regions list is empty to appease OTS < v8.0 (#1752).\n- [designspaceLib] Defined new ``processing`` attribute for ``<rules>`` element,\n with values \"first\" or \"last\", plus other editorial changes to DesignSpace\n specification. Bumped format version to 4.1 (#1750).\n- [varLib] Improved error message when masters' glyph orders do not match (#1758,\n #1759).\n- [featureVars] Allow to specify custom feature tag in ``addFeatureVariations``;\n allow said feature to already exist, in which case we append new lookup indices\n to existing features. Implemented ``<rules>`` attribute ``processing`` according to\n DesignSpace specification update in #1750. Depending on this flag, we generate\n either an 'rvrn' (always processed first) or a 'rclt' feature (follows lookup order,\n therefore last) (#1747, #1625, #1371).\n- [ttCollection] Added support for context manager auto-closing via ``with`` statement\n like with ``TTFont`` (#1751).\n- [unicodedata] Require unicodedata2 >= 12.1.0.\n- [py2.py3] Removed yet more PY2 vestiges (#1743).\n- [_n_a_m_e] Fixed issue when comparing NameRecords with different string types (#1742).\n- [fixedTools] Changed ``fixedToFloat`` to not do any rounding but simply return\n ``value / (1 << precisionBits)``. Added ``floatToFixedToStr`` and\n ``strToFixedToFloat`` functions to be used when loading from or dumping to XML.\n Fixed values (e.g. fvar axes and instance coordinates, avar mappings, etc.) are\n are now stored as un-rounded decimal floats upon decompiling (#1740, #737).\n- [feaLib] Fixed handling of multiple ``LigatureCaret`` statements for the same glyph.\n Only the first rule per glyph is used, additional ones are ignored (#1733).\n\n4.0.2 (released 2019-09-26)\n---------------------------\n\n- [voltLib] Added support for ``ALL`` and ``NONE`` in ``PROCESS_MARKS`` (#1732).\n- [Silf] Fixed issue in ``Silf`` table compilation and decompilation regarding str vs\n bytes in python3 (#1728).\n- [merge] Handle duplicate glyph names better: instead of appending font index to\n all glyph names, use similar code like we use in ``post`` and ``CFF`` tables (#1729).\n\n4.0.1 (released 2019-09-11)\n---------------------------\n\n- [otTables] Support fixing offset overflows in ``MultipleSubst`` lookup subtables\n (#1706).\n- [subset] Prune empty strikes in ``EBDT`` and ``CBDT`` table data (#1698, #1633).\n- [pens] Fixed issue in ``PointToSegmentPen`` when last point of closed contour has\n same coordinates as the starting point and was incorrectly dropped (#1720).\n- [Graphite] Fixed ``Sill`` table output to pass OTS (#1705).\n- [name] Added ``removeNames`` method to ``table__n_a_m_e`` class (#1719).\n- [ttLib] Added aliases for renamed entries ``ascender`` and ``descender`` in\n ``hhea`` table (#1715).\n\n4.0.0 (released 2019-08-22)\n---------------------------\n\n- NOTE: The v4.x version series only supports Python 3.6 or greater. You can keep\n using fonttools 3.x if you need support for Python 2.\n- [py23] Removed all the python2-only code since it is no longer reachable, thus\n unused; only the Python3 symbols were kept, but these are no-op. The module is now\n DEPRECATED and will removed in the future.\n- [ttLib] Fixed UnboundLocalError for empty loca/glyph tables (#1680). Also, allow\n the glyf table to be incomplete when dumping to XML (#1681).\n- [varLib.models] Fixed KeyError while sorting masters and there are no on-axis for\n a given axis (38a8eb0e).\n- [cffLib] Make sure glyph names are unique (#1699).\n- [feaLib] Fix feature parser to correctly handle octal numbers (#1700).\n\n\\... see `here <https://github.com/fonttools/fonttools/blob/main/NEWS.rst>`__ for earlier changes\n",
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