Find out file extension of a file from within the file.

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Sasquatch
Sasquatch 2014-12-11
评论： Sasquatch 2014-12-11
I have a build I want to give someone that contain protected models and I have a script that I also want to protect. Right now I have a parameter being passed in to say which library I want to ready from, but I don't like that. Is there any way that I can see if the file that is being run is a .m or a .p? If I can do that then I can base my choice on that. I tried using mfilename and it didn't work and I tried:
a = mfilename('fullpath');
[~,~,ext] = fileparts(a);
but that didn't work either. I don't want to use dir, since I'll have both versions on my computer. Is there anything I can do to get the file extension of the file that I run?

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Sean de Wolski
Sean de Wolski 2014-12-11
编辑：Sean de Wolski 2014-12-11
You could fileparts the output from which.
[~,~,ext] = fileparts(which(mfilename))

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