Facebook and regex

[aleksa77]

Is anybody have some advice about regex and facebook source, sometimes it works fast, but sometimes it is very slow, I tried to extract parts, but it is the same, first, I do not catch why sometimes for the same page is slow and sometimes not, but Facebook looks crazy every day more and more .

 

[backoff]

I advise you to use xpath works much faster and much more accurate
and regular works slowly because there is a lot of code on the page that is loaded through js and it is much more difficult for regular to process it

be smarter - use xpath )
especially for FB

 

[PHaRTnONu]

Because FB ads a random assortment of div to html coding and random letters and numbers to trick bots up (if you ever save the html from day to day you will see the assortment of bs they do in the coding.
As Backoff said xpath is the solution to this.