[wp-trac] [WordPress Trac] #38187: Regex special chars should be escaped in WP_oEmbed

[WordPress Trac]

#38187: Regex special chars should be escaped in WP_oEmbed
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 Reporter:  jrf           |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Embeds        |    Version:  4.0
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Just noticed four oembed regexes which each contained a non-escaped dot
 which potentially could result in incorrect matches (not very likely).

 `.` in a regex means "match anything", it needs to be escaped `\.` to be
 interpreted as a literal period character.

 So, for example, `http://daiwly/` would match when it shouldn't. Though as
 I said, very unlikely as that would not make for a valid url.

 These are probably artifacts from when each of these were transformed from
 a non-regex key into a regex based key.

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Ticket URL: <https://core.trac.wordpress.org/ticket/38187>
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