How do i use regular expressions effectively for parsing my text?
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Hello,
I am currently using regular expressions for parsing my text. The pattern is:
pattern = 'red(dy|dish)?'
regexp(text,pattern,'match')
the answer is reddy, reddish, red. However the pattern recognizes red in words like predominantly , predetermined etc. I do not want this to happen. I want the regular expressions to only return words which describe color red (example red, reddy, reddish). How do i change my pattern or regular expression accordingly? Any help in this regard would be highly appreciated.
Thanks, Phani
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Accepted Answer
Andrei Bobrov
on 19 Jun 2013
Edited: Andrei Bobrov
on 24 Jun 2013
try:
pattern = '\<red(dy|dish)?\s'
ADD
pattern = '\<red(d)?(y|ish)?\>'
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More Answers (3)
Azzi Abdelmalek
on 19 Jun 2013
Edited: Azzi Abdelmalek
on 19 Jun 2013
text='red redy predominant red ade redish red vrd redishh'
pattern='(?<=\s)red(y|ish)?(?!\S)'
regexp([' ' text],pattern,'match')
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