Bug #53797 [Opn->Bgs]: PCRE_DOTALL modifier overrides non-greedy operator
| From: | felipe@php.net | Date: | Thu, 20 Jan 2011 12:11:19 +0000 |
| Subject: | Bug #53797 [Opn->Bgs]: PCRE_DOTALL modifier overrides non-greedy operator | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-158034@lists.php.net to get a copy of this message | ||
Edit report at http://bugs.php.net/bug.php?id=53797&edit=1
ID: 53797
Updated by: felipe@php.net
Reported by: lists at excogitate dot co dot uk
Summary: PCRE_DOTALL modifier overrides non-greedy operator
-Status: Open
+Status: Bogus
Type: Bug
Package: PCRE related
Operating System: Windows 7
PHP Version: 5.3.5
Block user comment: N
Private report: N
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
Previous Comments:
------------------------------------------------------------------------
[2011-01-20 02:41:09] lists at excogitate dot co dot uk
Description:
------------
If the PCRE_DOTALL 's' modifier is specified in the regex, instances of
the non-greedy (lazy) operator '?' are ignored.
Test script:
---------------
$input = <<<END
<p>paragraph 1</p>
<p>paragraph 2</p>
END;
print "Output 1:\n";
print preg_replace('|<p.*?>paragraph 2</p>|', '', $input);
print "\nOutput 2:\n";
print preg_replace('|<p.*?>paragraph 2</p>|s', '', $input);
Expected result:
----------------
Output 1 and Output 2 should be the same, i.e. with the second paragraph
removed.
Actual result:
--------------
Output 2, with the PCRE_DOTALL modifier set, is blank: the first pattern
matched greedily.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=53797&edit=1