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
Summary:
In LaTeX, large delimiters are the same font size as they are at a normal size,
regardless of the actual size. This means that we need to scale up the font size
in the inner nodes, which is annoying because we run into the same problem we
had with \Huge, etc in those nodes. Thus, this fixes both problems at once.
The problem was that when we used our baseline-align-hack and then increased the
font size inside of one of the middle (display: block and height: 0) nodes, the
node with the increased font size would shift downards (misaligning its
baseline). To fix this, we add a method for calculating the maximum font size
used in each of the nodes, and adding a small node with this font size to each
of the other nodes (including the fix-ie node). This shifts all of the nodes
down the same amount, and gets their baselines aligned.
Test Plan:
- Do dumb things by putting \Huge and \big in places they shouldn't be, and
make sure they behave responsibly
- Do the same thing in IE 8, 9, 10, 11, Safari, Firefox, and make sure they all
behave the same (to some approximation)
- Make sure the new huxley image looks good, and the images that changed don't
have significant changes
Reviewers: alpert
Reviewed By: alpert
Differential Revision: http://phabricator.khanacademy.org/D12684
