[wp-trac] [WordPress Trac] #30445: Math formulas displaying oddly

[WordPress Trac]

#30445: Math formulas displaying oddly
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 Reporter:  PCZatDalton   |       Owner:
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  4.1
Component:  Formatting    |     Version:  4.0
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Changes (by rmccue):

 * keywords:   => needs-patch
 * milestone:  Awaiting Review => 4.1


Comment:

 Hi PCZatDalton, thanks for the bug report here.

 Here's what seems to be happening with the issue. `wptexturize` takes care
 of changing certain characters, such as `--` to an en dash. One of the
 things it handles here is
 [https://core.trac.wordpress.org/browser/trunk/src/wp-
 includes/formatting.php#L290 changing the `x`] in `9x9` to a real
 multiplication symbol. (For example, something like `1024x768`)

 This was changed in r28719 (#19308) to also include negative numbers, but
 it looks like it might be an issue, since `x` is also a valid variable
 name. While the LaTeX plugin could be fixing this, it'd really be a
 workaround.

 I'd suggest we remove the `-` from the regex, so that it only matches
 `9x9` not also `9x-9`, which is ambiguous.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30445#comment:11>
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