regexp to capture only certain length of characters
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Hi, I'm trying to capture words with 4 characters only. A word consists or alphanumeric characters.(no symbols of white space)
str4='4-44g 4541 75872 a4cd stuvw';
patt4='(\w{4,4})';
regexp(str4,patt4,'match')
I'm expecting 4541 a4cd as the correct answer. However my code outputs stuv & 7587 in addition. How can I correct this
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Answers (2)
Rashmil Dahanayake
on 7 Aug 2014
1 Comment
Azzi Abdelmalek
on 7 Aug 2014
This doesn't work for underscore. For example
str4='4-44g 454_ 75872 abcd stuvw'
Azzi Abdelmalek
on 7 Aug 2014
str4='4-44g 4541 75872 a4cd stuvw';
regexpi([' ' str4 ' '],'(?<=[^0-9,a-z])[0-9,a-z]{4}(?=[^0-9,a-z])','match')
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