I have a string like the following:
desc=Did you know 2 + 2 \= 4?
I want to split each chunk of that string into segments separated by the equal signs. I can't just split on the equal signs because the text has an equal sign in it. I need to split on the non-escaped equal signs.
@parts = split(/(?<!\\)=/,$str);
This is called positive and negative look behind.
In PHP the only difference is that you have to double escape your
$parts = preg_split('/(?<!\\\\)=/',$str);