Fixes https://github.com/harfbuzz/harfbuzz/issues/3017
Uses AdobeBlank2.ttf from:
https://github.com/adobe-fonts/adobe-blank-2
instead of a dummy empty font so that everything maps to GID 1 and
control code points are kept instead of being dropped because there is
not space glyph (otherwise we’d need to identify control code points
somehow when generating the expectations).
We are not interested in testing FreeType cmap support.
Fixes most format 4 tests. The remaining test seems to be peculiar, and
I can’t find any cmap implementation that produces the expected output.
In batch mode (which is used for testing) we are probably not interested
in splitting text into lines as we could have split the string into
different tests. This fixes a bunch of AOTS tests that use newlines as
input.
When running in batch mode, the quotes are not stripped by the shell and
end up in the feature string. This breaks one of the AOTS tests.
Alternatively, we can remove the quotes from the test files, not sure
which is less hacky, though!
Don’t replace Default_Ignorables with zero-width space if they are
substituted or multiplied, not just when ligated.
After this change, HarfBuzz output matches that of Uniscribe and
CoreText for the new tests.
Fixes https://github.com/harfbuzz/harfbuzz/issues/2883
Was producing non-monotonic cluster numbers because our faulty logic
was not merging clusters if something from before base and after base
had switched positions.
Fixes https://github.com/harfbuzz/harfbuzz/issues/2272
* [aat] Correct array indexing when looking up actions in KerxSubTableFormat4.
- For action_type 0 and 1, there are 2 values per action record; for action_type 2, there are 4. So we need to account for these factors when indexing into the ankrData array.
Fixes https://github.com/harfbuzz/harfbuzz/issues/2531.
* [aat] Fix implementation of AAT kerning for Geeza Pro.
Despite what the comment in the code used to say, it appears that Geeza Pro
does rely on accumulating kerning values from successive subtables. With
this change, the results now match Core Text rendering (and avoid the clear
visual breakage reported in #2358).
Testcase: U+0644,U+064E,U+0645,U+064E,U+0651,U+0627
Fixes#2358.
* [aat] Update test expectations, add new testcase.
The test is added in 7035c9cd but the same font is available in older versions of macOS
so let's run it in older versions also.
It doesn't matter much, more for consistency reasons.
A few simple testcases to confirm that setting liga=0 does not break shaping with
the Tibetan AAT font Kokonor, but does still disable common ligatures in Times.
Khaled Hosny
Behdad Esfahbod
David Corbett
Jonathan Kew
Khaled Hosny
David Corbett
Ebrahim Byagowi
Evgeniy Reizner