[wp-trac] [WordPress Trac] #26827: Using ! (exclamation mark) in rewrite rules causes an error

[WordPress Trac]

#26827: Using ! (exclamation mark) in rewrite rules causes an error
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 Reporter:  kapooostin     |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Rewrite Rules  |    Version:
 Severity:  normal         |   Keywords:  needs-patch
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 An error is caused by exclamation marks used as regexp delimiters in wp-
 includes/rewrite.php, line 357 (WP 3.8).

 There was similar ticket prior to WP 3.0
 https://core.trac.wordpress.org/ticket/7486, that was closed.

 Maybe using ` as the delimiter would be more bulletproof.

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Ticket URL: <https://core.trac.wordpress.org/ticket/26827>
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