Edit report at http://bugs.php.net/bug.php?id=54702&edit=1
ID: 54702
Updated by: fel...@php.net
Reported by: gwbv at yahoo dot com
Summary: character @ not handled properly with \b
-Status: Open
+Status: Bogus
Type: Bug
Package: PCRE related
Operating System: Linux
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
This is not a bug.
>From PCRE library documentation:
"
\Biss\B
which finds occurrences of "iss" in the middle of words. (\B
matches
only if the current position in the subject is not a word
boundary.)
"
I.e. \b just makes sense surrounding another word.
re> /!\b/
data> !
No match
data>
re> /a\b/
data> abc a
0: a
Previous Comments:
------------------------------------------------------------------------
[2011-05-10 19:02:35] gwbv at yahoo dot com
Description:
------------
Hi,
I have a problem with the @ character at the end of a word, with the
word delimiter \b:
input: i wrote this exampl@ for you
preg_match('/\bexampl@/','i wrote this exampl@ for you') = 1
preg_match('/\bexampl@\b/','i wrote this exampl@ for you') = 0
the second preg_match should also return 1 !!
Test script:
---------------
<?php
$input='i wrote this exampl@ for you';
echo "input: ".$input."\n";
$patt='/\bexampl@/';
echo "preg_match('".$patt."','".$input."') = ".preg_match($patt,
$input)."\n";
$patt='/\bexampl@\b/';
echo "preg_match('".$patt."','".$input."') = ".preg_match($patt,
$input)."\n";
?>
Expected result:
----------------
for both preg_match, output should be 1, that is, the pattern should be
found in the input string
preg_match('/\bexampl@/','i wrote this exampl@ for you') = 1
preg_match('/\bexampl@\b/','i wrote this exampl@ for you') = 1
Actual result:
--------------
preg_match('/\bexampl@/','i wrote this exampl@ for you') = 1
preg_match('/\bexampl@\b/','i wrote this exampl@ for you') = 0
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=54702&edit=1
