Question

I would like to split a Simulink path that looks like this: "a/b/c//d". It should split to [a,b,c/d]. How would the regular expression look like?

Thanks and regards

Answer 1

This should do the trick:

>> strrep(regexp('a/b/c//d', '(([^/]|//)*)(?=/[^/]|$)', 'match'), '//', '/')
ans = 
    'a'    'b'    'c/d'

The regular expression can be understood as follows: the first part matches any not-slashes ([^/]) OR double-slashes, giving the piece ([^/]|//). We want any number of those, so we need a *, followed by EITHER a slash-then-not-slash OR the end of the string (/[^/]|$). We use the lookahead operator (?= ... ) do do that.

The strrep is to replace // with / in the result. Maybe that can be done in the same call to regexp, but it’s complicated enough already for my taste.