How to replace a word with another word in a cell array (case insensitive)
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gmltn1212
el 16 de Jul. de 2020
Comentada: gmltn1212
el 16 de Jul. de 2020
Hi I am trying to replace words found in a string with a given value (case insensitive)
str = 'lemon lemontea Lemongrass lime';
replaceword = 'lemon' %case insensitive
withthis = {'berry', 'apple', 'flower'};
Assume that we will be given with enough number of words to replace all the occurance of the word
I want to return this:
newstr = 'berry appletea flowergrass lime';
I tried to use strrep but it would replace for Lemon...
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Stephen23
el 16 de Jul. de 2020
Editada: Stephen23
el 16 de Jul. de 2020
Method one: loop and regexprep:
for k = 1:numel(withthis)
str = regexprep(str,replaceword,withthis{k},'once','ignorecase');
end
Method two: regexpi and indexing:
>> spl = regexpi(str,replaceword,'split');
>> spl(2,1:end-1) = withthis;
>> str = sprintf('%s',spl{:})
str =
berry appletea flowergrass lime
6 comentarios
Stephen23
el 16 de Jul. de 2020
Editada: Stephen23
el 16 de Jul. de 2020
Because one of the withthis words includes the very substring that you are replacing you will have to use the second method, for example:
>> replaceword = 'ye';
>> withthis = {'HELLO','BYE','MEOW'};
>> str = fileread('cartiSnapping.txt');
>> spl = regexp(str,replaceword,'split','ignorecase');
>> spl(2,1:end-1) = withthis;
>> str = sprintf('%s',spl{:})
str =
I got a lot on my mind HELLOah
I got a lot on my mind huh BYEah
I got a lot on my mind huh Whoa
She got a lot on her mind ooh
She got a lot on her mind ooh MEOWah
I got a lot on my mind ooh
I got a lot on my mind
and then save to file like I showed earlier.
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