Fix for #1985:
* ensure that the AxisNameID in the STAT table is not less than 256. This needed an additional argument to the addMultiLingualName() name table method.
* fvar axis name IDs must also not be less than 256, just like STAT axis names.
_getUnicodeRangeSets used to calculate sets containing lots of numbers, only to
get intersections between a set and ranges. Creating and manipulating a lot of
big sets requires a lot of memory.
The function has been replaced by _getUnicodeRanges, returning a list of range
starts boundaries and a list of range stops + corresponding bits.
Tests on intersectUnicodeRanges save about 130 MB (!) of RAM, with no
significant speed penalty.
Adds __str__() method to ast classes that writes back VOLT data. Tries
to replicate VOLT syntax idiosyncrasies as much as possible for better
round-trip conversion.
This makes the directory to search for included files explicit.
Also use Python 3's FileNotFoundError to catch non-existant files instead of a workaround for Python 2.
Instead of copying to BytesIO, we can return the file name in getstate and reopen the file in setstate. This keeps the TTFont truly lazy as it avoids the extra copy
* when reading from binary, name.string may be an encoded bytes sequence: we should call toUnicode() before we compare to the requested string
* fix expected output
* Allow feature variations to be active across the entire space
* Add test with empty condition set
* Skip initial box instead of removing it
* Correct comment
[docs] Document cu2qu library
Reorganise the documentation so that everything is in one place and users are more clearly pointed to the modules which are likely to be useful for their purposes. (I still think it’s worth having at least a brief reference to ``cu2qu.cli`` in there, as a way of reminding users that there is a command-line implementation.) Docstrings are provided for non-API methods where I could understand them - trusting these will be useful for future maintainers.
Also, implement merging version 5 (by taking the min/max of the optical
point sizes), and rename `usMaxContex` to the correct name `usMaxContext`.
The typo was fixed in the OS/2 table some time ago, but we forgot to
also update the merge module.
Fixes#1865
[docs] Document feaLib
* Rearrange docs by user intention, highlighting the things you can do with each component.
* Remove reference to lexer and error modules from documentation tree, since they’re not user-facing.
* I’ve added docstrings to the parser even though we only provide access to the user-facing part of the API in the main documentation, just to clarify what some of the more obscure methods do and provide links to the spec.
* AST *is* user-facing if you’re building your own feature files in code, so all classes are documented with the user in mind.
