Preg: checking if match is between quotes

[Full-Demon]

Hi,

 

I'm trying to parse a file, and I only need to replace stuff that is outside any single or double quotes. How can I, using preg_match, see if the found key is between quotes or not?

 

Thank you!

 

FD

[effigy]

preg_split on /"(.*?)"/ and perform the operations on elements that do not begin with ".

[Rithiur]

Well.. to do exactly what you want, you can do something like this:

 

$string = preg_replace('/\G(([^\'"]*|([\'"]).*\3)*)foo/Us', '$1bar', $string);

 

That will replace all 'foo's that are not inside single or double quotes with 'bar's. Of course, do remeber, that if you are trying to match strings that contain text, the quotes used in words like "don't" also count.

[effigy]

PCRE does not support \G.

[Rithiur]

PCRE does not support \G.

 

To quote the PHP manual:

 

The \G assertion is true only when the current matching position is at the start point of the match, as specified by the offset argument of preg_match(). It differs from \A when the value of offset is non-zero. It is available since PHP 4.3.3.

[effigy]

I was looking at this in the manual:

 

The Perl \G assertion is not supported as it is not relevant to single pattern matches.

 

That's confusing.