my @matches = (m/(<p\sclass=g>.*?<a\shref=https?:\/\/)([^<]*?>)(.*?(?=<p\sclass=g>))/gx); # Should work.

my @matches = (m/(<p\ class=g>.*?<a\ href=https?:\/\/)([^<]*?>)(.*?(?=<p\ class=g>))/gx); # Should also work.

my @matches = (m/(<p\s+class=g>.*?<a\s+href=https?:\/\/)([^<]*?>)(.*?(?=<p\s+class=g>))/gx); # Probably more robust like this.