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List Built in Commands used by .m function

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Scott
Scott on 24 Feb 2015
Commented: Scott on 24 Feb 2015
I'd like to analyse a set of .m functions that have been written to see which built-in commands have been used by the authors.
The results of this analysis will be to create a coding standard which specifies which built-in commands may be used and which are prohibited.
The "Dependency Report" shows me which functions I've used but not the built-in commands. Anyone know if this is possible?
Thanks.

Accepted Answer

Guillaume
Guillaume on 24 Feb 2015
One possible way, use the undocumented mtree function to get the parse tree of the code, identify the function calls in that tree (the hard bit!), then use exist to identify the built in ones
For example (works on R2014b):
parsetree = mtree('array2table.m', '-file');
treeids = parsetree.mtfind('Kind', 'ID');
idstrings = unique(treeids.strings);
isbuiltin = cellfun(@(id) exist(id, 'builtin') == 5, idstrings);
nonbuiltinid = idstrings(~isbuiltin)
builtinid = idstrings(isbuiltin)
  3 Comments
Scott
Scott on 24 Feb 2015
Thanks for your help. I've got something that will meet my needs.

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