Hello,

in Perl, "<<" can start a heredoc string.

While the Perl interpreter can decide if this is indeed a Heredoc string or a shift left operator, a simple language grammar can't, because it doesn't know that TSL2561_LUX_CHSCALE is a constant.

If you save the constant in a variable first and use that to do the binary left shift, it is highlighted correctly:

$shift = TSL2561_LUX_CHSCALE;
$chScale = (1 << $shift);

Can you send me the file so I can try it on my device?

Is the file "gianni_custom2.css" downloaded from iCloud?

Are you using public key authentication or user/password auth? It looks like the credentials are wrong. Do you get any other error message alert?

This is a bug in iOS 9. A reboot of your iPad Pro should fix that.

Are you sure that this is a problem of the editor? In the screenshot it looks like "<script></script>" is correctly highlighted as a string.

Or do you mean when you preview the file in the browser?