[wp-trac] [WordPress Trac] #35293: Emoji Regex in wp_encode_emoji() is wildly inaccurate

[WordPress Trac]

#35293: Emoji Regex in wp_encode_emoji() is wildly inaccurate
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 Reporter:  pento         |       Owner:  pento
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  4.9
Component:  Emoji         |     Version:  4.2
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by pento):

 == Test 7.2

 Looping over the entire emoji array for every block in staticize is pretty
 wasteful. Instead, looping over it at the start to create a smaller array
 of emoji that we'll probably be replacing means we reduce the size of the
 inner loop significantly.

 '''Data''': https://travis-ci.org/pento/test-41501/builds/260498759

 '''Analysis''':
 - We're now about the same or significantly faster on all tests, when
 compared to 6.1.
 - When compared to the old behaviour, 7.2 is about the same, or a bit
 slower for primary use cases.

 '''Conclusion''': Despite now being the fastest, the optimisation applied
 here could be applied to 6.1, too. That'll need more testing to compare.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35293#comment:39>
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