Summary:
Add a way to automatically build vlists correctly. Previously, we built
vlists manually in ~4 different places, which made it difficult to manage
changes, and led to a large amount of duplication in the less. This also fixes
the vlist construction in safari, where the `display: inline-table` wasn't being
applied because of CSS specificity. This leads to the only significant change in
the huxley tests, with the vertical spacing.
Test Plan:
- Make sure the tests still work
- Make sure most of the huxley screenshots didn't change, and that the new
changes are insignificant.
- Make sure vlists now work in Safari
- Make sure the change to the VerticalSpacing screenshot is caused by the
fix-baseline span now correctly applying `display: inline-table` by creating
the construct in master and adding `display: inline-table !important` to the
`.fix-ie` css rule
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D13082
Summary:
This incorporates the changes to add a KA copyright, and to generate the woffs
from the ttfs, not the otfs.
Test Plan:
- Run huxley tests, see very little has changed (it looks like all the images
shifted back down ~1/2 pixel, the opposite of what happened in ad97dab19c
when we started making our own woffs, which means we probably are now
generating woffs the same way fontsquirrel does)
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D12889
Summary:
I don't know why we originally used 2/3em for scriptstyle, but both TeX
and MathJax use 0.7em for the scriptstyle size.
Test Plan:
- Look at huxley tests, make sure everything that changed is due to the change
in font size
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D12869
Summary:
Instead of using the metrics from our generated TTF files, use the fonts that
TeX ships with. Pull the mapping out of the MathJax-dev repo from makeFF to get
the correct mapping of metrics to font characters, and use our own tfm reader to
extract metrics out of the tfm files into a useable format. Add a README and
Makefile rule to make this process easier in the future.
Also remove the silly 0.05em we put on supsubs because our italic correction
works now.
Test Plan:
- Run huxley tests, see that changes are because of font metric changes.
- See that the extension piece of `\bigl |` now extends above the top, as it is
supposed to.
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D12867
Summary: Plain TeX assigns `\scriptspace=0.5pt`, which is used in Rules 18bcd in the TeXbook's Appendix G.
Test Plan:
- Look at `x^{x^{x_{x_{x_{x_x}}}}}\biggr|`, see a gap that looks similar to the one produced by real TeX.
- Look at the huxley tests, see that they look reasonable. Make sure that all changes to other huxley tests are now correct, and only changed because of this.
Reviewers: emily
Reviewed By: emily
Subscribers: jessie
Differential Revision: http://phabricator.khanacademy.org/D12763
