Regular expressions: dealing with spaces

47 views (last 30 days)
Hi all,
I have different strings wich they differ from the number of spaces among words. I need to find a way to find this string pattern in a long string.
For example
TxT='f 2000 min';
TxT='f2000min';
TxT='f 2000 min';
At first, I came up with this,
regexp(Txt,'(f \d+ min)||(of\d+min)','match')
but it doesn't work for the last case for the number of spaces. Is there any way to not consider spaces into regular expressions or that a variable number of spaces inside the string might be in the strings?
  2 Comments

Sign in to comment.

Accepted Answer

Stephen23
Stephen23 on 3 May 2016
Edited: Stephen23 on 21 Apr 2021
You were almost there:
>> fmt = 'f *\d+ *min';
>> regexp('f 2000 min',fmt,'match')
ans =
f 2000 min
>> regexp('f2000min',fmt,'match')
ans =
f2000min
>> regexp('f 2000 min',fmt,'match')
ans =
f 2000 min
One of the best things about MATLAB is the great documentation. It means that you don't have to guess how MATLAB works, or ask random strangers on internet forums. The documentation is online, and searchable using your favorite internet search engine. And when I searched for ˇMATLAB regular expression", this is the first result:
It explains how to specify how many times characters or patterns should be matched.
  2 Comments
Jan
Jan on 25 Oct 2017
Edited: Jan on 21 Apr 2021
I have removed the flag. Stephen's answer contains a solution and is polite. It is not ironic to suggest to use the documentation, but useful.

Sign in to comment.

More Answers (0)

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!