fix: correct various issues from old TeX extraction #13
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WARNING includes new issues, see #11 (comment) WARNING squash before merge!
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Rebased on master. |
This definition would break stretchy root overlines. Part of #11
Document this intentional change (which is an improvement). See also the discussion in #11.
Avoids nabla becoming italic by falling back to core MathJax.
Avoids problems in superscripts by falling back to core MathJax. Part of #11
Set emptyset to use u2205's variant form (cf varnothing). NOTE This is STIX Two specific; CM has u2205 forms reversed. Part of #11
Disables many to fallback to core MathJax, and adjusts others. The main theme is to avoid combining above/below characters. Part of #11
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@davidmjones this is ready for review (the html files with -output might be useful) |
Thanks to @dpvc via c110058#r50433562
now with combining char fix
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Updated with recent STIX2 fixes. Now with good looking accents -- thanks @dpvc! |
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(The only one that didn't change was U+20D2 but I don't know what it's supposed to look like). |
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Visual regression tests for our v3 sample set came back clean. |
U+20D2 is COMBINING LONG VERTICAL LINE OVERLAY, so not an accent (just a regular combining character that should overstrike the U+0338 |
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Thanks for the pointer @dpvc. The TS was originally generated from the TeX file in the bin folder (with the scripts by @davidmjones) where it's a mathaccent, cf. also http://mirrors.ctan.org/macros/unicodetex/latex/unicode-math/unimath-symbols.pdf. Anyway, this is the kind of thing why we're switching away from the generated TS. |
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Well, I suppose it would be possible to use it as an accent if we adjusted the bounding box so that it had negative depth (like other accents), and so that when it is placed above a character, it "hangs down" below its depth. Perhaps that is how unicode-math can treat this as an accent. As I recall, TeX fonts have height and depth values that are not necessarily related to the actual ink, just as left- and right-bearing may not match the actual bounding box of the ink; for example, the height and depth of the minus sign is the same as the plus sign so that they align the same in super- and subscripts. Perhaps the TeX version of the STIX2 font has such values for this character so that is can work as an accent. We can try that out if you like. But since the position of the accent is based on the height of the character, that does mean the vertical overstrike would have different vertical positions for different letters (probably not what is desired). |
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I dunno. It looks like a \not kind of thing to me. @davidmjones will know best. |
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As per F2F, this can be merged without resolving \vertoverlay. |
Fixes several issues due to incompatibilities between xetex+unicode-math and MathJax+mathjax-unicode-math.
Closes #11