take strings set via IBlocalizable into account

[gregoireLem]

Type of issue: Request

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Description:

I am using this lib : https://github.com/PiXeL16/IBLocalizable which allow localization from storyboard.

When I use nslocalizer "--find-unused" all string set via IBLocalizable in storyboard are considered as unused.
Is it possible to take IBlocalizable into account ?

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[samdmarshall]

based on how the code is written now: no, i don't believe this could be achieved. this is because nslocalizer parses the xcode project file to find the source files of a particular target within the project. the code could be changed to also include nib/xib/storyboard files, but it would be a non-trivial change in both lines-of-code and code functionality. i am not in a position to do active development on this, but if you want to contribute a PR with the changes, i would consider merging it.