Re: Re: Match anything between two " that is not a " except if it is escaped...

From: Date: Thu, 17 Jan 2008 11:07:04 +0000
Subject: Re: Re: Match anything between two " that is not a " except if it is escaped...
References: 1 2  Groups: php.general 
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Max Antonov schreef:
mathieu leddet writes:
Hi everyone, I am struggling with regular expression trying to match strings delimited by double quotes, but taking into consideration that \" is not a string ending character.
......
// pattern for catching strings between " $pattern = '#"([^"]*)"#';
.....
$out contains : this is a string : <b>"Hi everyone my name is \"</b>Mathieu\<b>"!"</b> Here is a second string : <b>"PHP is just perfect"</b>
.....
-- Mathieu
If I right understand you scope. (yes, my English is bad)
better than our russian.
You hope to get result such as: this is a string : <b>"Hi everyone my name is \"Mathieu\"!"</b> Here is a second string : <b>"PHP is just perfect"</b> I try to fix you regular expression. $pattern = '#"(.*?)(?<=[^\\\\])"#is'; attend to this: (?<=[^\\\\])
attend? don't understand what you mean BUT you have given the OP the answer by changing his regexp to include a [negative] look behind assertion for the backslash. :-)
when PHP compile this string - inside it looks like (?<=[^\\]) when regular expression compile inside pcre library it looks like #"(.*?)(?<=[^\])"#is this part: (?<=[^\])" is mean folow: double quote, which not have leading backslash. see folow: max@maximus:~$ cat preg.php <?php $in = 'this is a string : "Hi everyone my name is \"Mathieu\"!" Here is a second string : "PHP is just perfect"'; // pattern for catching strings between " $pattern = '#"(.*?)(?<=[^\\\\])"#is'; // surround matching string with HTML span code to highlight $replacement = '<b>"${1}"</b>'; // perform the reg exp replacement $out = preg_replace($pattern, $replacement, $in); echo $out,"\n\n"; max@maximus:~$ php preg.php this is a string : <b>"Hi everyone my name is \"Mathieu\"!"</b> Here is a second string : <b>"PHP is just perfect"</b> Is this rigth? -- Max Anotnov (idler at instanceof dot ru)


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