Please have a look at the Readme.
exclude-views is documented to be used with comma separation without any spaces before or after the comma.
You're placing spaces before and after the comma, right? That is why exclude-views didn't work correctly for you.

The way I see it, your changes would break the existing and documented behavior and force everybody to add a single space before and after the comma.

Nonetheless a pull-request, that adds support for spaces (without breaking existing notations) in this comma separated list would be very welcome.
Ideally any combination zero, one or multiple spaces on both sides of the comma should be supported.

In my exclude-subviews, I am using a comma separated list without spaces.

exclude-subviews:PUAlbumListCellContentView,UIImagePickerController,UITableViewCell;

The problem, as pointed out by frapaa in #269 is that the NUIParserDelegate.m is adding in extra spaces around the commas. So:

exclude-subviews:PUAlbumListCellContentView,UIImagePickerController,UITableViewCell;

is converted to
exclude-subviews:PUAlbumListCellContentView , UIImagePickerController , UITableViewCell;

This happens on line 48 of NUIParserDelegate.m

Because the exclude-subviews string now has extra spaces in it, the logic on UIView+NUI.m lines 52 and 66 doesn't work. So my pull request was to address this issue by splitting the exclude-subviews string with a " , " instead of ",".

I think this is ultimately the error that is being reported in issues #224 , #269 and #299

I'm sorry.
Thank you for explaining.

Looks good to me.

For future reference:
The changes in this pull request are a workaround for a regression caused in 79f74d9

In my eyes the parser needs some work as

• taking apart a comma separated list (in the parser)
• putting it back together with spaces (in the parser)
• taking it apart again in the view

is not exactly ideal.

Also this is probably something we should add a unit test for.