[wp-trac] [WordPress Trac] #23307: shortcode_parse_atts may return empty string

[WordPress Trac]

#23307: shortcode_parse_atts may return empty string
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 Reporter:  GaryJ                         |       Owner:
     Type:  defect (bug)                  |      Status:  new
 Priority:  normal                        |   Milestone:  3.9
Component:  Shortcodes                    |     Version:
 Severity:  minor                         |  Resolution:
 Keywords:  needs-unit-tests needs-patch  |     Focuses:
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Comment (by GaryJ):

 Replying to [comment:10 TobiasBg]:
 > An array with a single empty string in it feels wrong. Also, `empty()`
 checks (which plugins might be doing to catch the empty string that's
 returned currently) would fail.
 > The correct return value should be an empty array.

 If the string is empty (i.e. `[foobar]`), then my attached patch already
 ensures an empty array is returned.

 What that last suggestion covers is the edge case when some non-empty
 string fails the regex.

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Ticket URL: <https://core.trac.wordpress.org/ticket/23307#comment:11>
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