[wp-trac] [WordPress Trac] #12690: Square brackets breaking links that contain square brackets

[WordPress Trac]

#12690: Square brackets breaking links that contain square brackets
-----------------------------------+-----------------------------
 Reporter:  iandstewart            |       Owner:  wonderboymusic
     Type:  defect (bug)           |      Status:  reopened
 Priority:  normal                 |   Milestone:  4.0
Component:  Formatting             |     Version:
 Severity:  normal                 |  Resolution:
 Keywords:  wptexturize has-patch  |     Focuses:
-----------------------------------+-----------------------------

Comment (by soulseekah):

 Replying to [comment:31 kovshenin]:
 > r28727 has too much backtracking which can cause segfaults in libpcre.

 To add to the discussion on segfaults in libpcre:
 https://lists.exim.org/lurker/message/20100430.100815.4f7be374.en.html
 (especially point number 4)

 Basically it's a stack overflow due to too much recursion.

 Setting `ulimit -s 65535` will increase the stack size on the machine. But
 still, a large enough string will eventually overflow. Setting a good
 `backtrack_limit` to a reasonable value would prevent PHP from faulting at
 least, although it's probably difficult to find a good limit since it's
 not the count that matters but rather the amount of memory on the stack.

--
Ticket URL: <https://core.trac.wordpress.org/ticket/12690#comment:32>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform