MATLAB: Count pattern of a string

countpatternstrings

Problem: I have a string '01234(01)3423(32)' and I want to count the pattern of this string. I consider as pattern '0','1','2','3','4','(01)','3','4','2','3','(32)' –> pattern=11. If I use 'size' or 'length', this function count as pattern '(' '0' '1' ')' that i consider all togheter as one pattern '(01)'. Can you give me some suggestions to solve the problem?

Best Answer

Count the substrings:
>> S = '01234(01)3423(32)';
>> numel(regexp(S,'(\(\d+\)|\d)'))
ans =  11
And check that it matches the correct substrings:
>> regexp(S,'(\(\d+\)|\d)','match')
ans =
  0
  1
  2
  3
  4
  (01)
  3
  4
  2
  3
  (32)
Tip
You should try using my FEX submission that helps you to create regular expressions:
http://www.mathworks.com/matlabcentral/fileexchange/48930-regular-expression-helper
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