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Changes between Version 1 and Version 2 of Ticket #12690, comment 31

v1	v2
12	12	}}}
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14		A simple workaround would be to not backtrack to try and match an empty `[]` shortcode, see [attachment:12690.diff]. Here's a little [https://cloudup.com/c~~0FEcmIjupf~~ perl script] if you'd like to compare the amount of backtracking on both variants.
	14	A simple workaround would be to not backtrack to try and match an empty `[]` shortcode, see [attachment:12690.diff]. Here's a little [https://cloudup.com/cUmD0HTHMgO perl script] if you'd like to compare the amount of backtracking on both variants.
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16	16	That said, we should probably be looking into using the data in $shortcode_tags in that regex, or even get_shortcode_regex() entirely, that would limit the search to the actual shortcodes that are available, and it will probably break so many unit tests which rely on non-existent shortcodes such as `[code]` or `[...]`.