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Usage of strcmpi in embedded strings

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T
T on 15 Jan 2014
Commented: T on 16 Jan 2014
suppose you have the following:
A = 'filename.exe'
B.B =
'whatisthatman.exe'
'nevermind.txt'
'ok.exe'
'\nevermind\filename.exe'
Is it possible to get the index of filename.exe that's embedded in that string with strcmpi?
  3 Comments
Walter Roberson
Walter Roberson on 16 Jan 2014
The outer B could be a structure array with 4 entries; then the output would be structure array expansion.

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Answers (1)

Walter Roberson
Walter Roberson on 16 Jan 2014
No, strcmpi() always compares entire strings. "filename.exe" does not occur as the entire string in the 4th entry in B.B, so strcmpi() is not suitable. You will need to use regexp() or strfind()
Are you looking for the index within B(4).B, which would be 12, or are you looking for the index of the entry that contains the string, which would be the 4 ?
cellfun( @(S) ~isempty(strfind(A, S)), {B.B} )
would return [false false false true]
  7 Comments
Walter Roberson
Walter Roberson on 16 Jan 2014
Bfixed = {B.B};
Bfixed(isnan(Bfixed)) = {''};
T = regexp( Bfixed, ['.*' A '.*'], 'match' );
vertcat(T{:})
T
T on 16 Jan 2014
Bfixed(isnan(Bfixed))
Undefined function 'isnan' for input arguments of type 'cell'.

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