I'm working on this RegEx to match and replace CSS with other CSS values. So far I have this:
$css_new = preg_replace('/('.$definition.'.*?\s'.$property.':)[^;]*([^}]*)/is','$1 '.$value.'$2',$css_temp);
The issue I have is that if I am trying to replace something in the definition ".menu" values also get replaced in the ".menu li" definition.
I was thinking of adding a "{" somewhere but I'm not having luck with it. I tried this:
$css_new = preg_replace('/('.$definition.'{.*?\s'.$property.':)[^;]*([^}]*)/is','$1 '.$value.'$2',$css_temp);
Thanks for your help.
Just wanted to report how I solved this problem. I was able to come up with this line and have tested it extensively.
$css_new = preg_replace('/(.*^'.$definition.'\s{.*?\s'.$property.':)[^;]*([^}]*)/ism','$1 '.$value.'$2',$css_temp);
If you see something wrong with this line please let me know but I believe this solves the issue.
I assume $definition always contains the entire selector. (And note that you replace the dot in your definition before adding it to your regexp, else .menu would match smenu as well)
$definition = '.submenu';
// no match:
.menu .submenu
I also assume that the CSS is not entirely clean (so double spaces can occur etc.).
.menu .submenu {
Next assumption is that multiple (comma) separated CSS rules do NOT exist (else you would be changing more than 1 rule):
.menu .submenu, .menu .list {
Then this should work: (not fully tested)
$cleanDefinition = str_replace(array('.', ' '), array('\.', '\s+'), $definition);
$result = preg_replace('/((?:}|^)\s*'.$cleanDefinition.'\s*{.*'.$property.'\s*:)(.+?)(;.*?})/is', '$1'.$value.'$3', $css_temp);