regexp problem in '.'
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I have a string and I want to split it with '.', but the regexp does not work.
test='abcde.abcde';
regexp(test,'.','split')
but it does not work, the result is a 1*12 cell array.
however, if I replace the '.' with other symbol, such as '_', the regexp function works properly.
test='abcde_abcde';
regexp(test,'_','split')
just want know if there is any mistake with my operation? or, is this a feature in 'regexp' function?
Thanks!
Yu
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per isakson
il 8 Gen 2019
Modificato: per isakson
il 8 Gen 2019
Try
%%
test='abcde.abcde';
regexp(test,'\.','split')
returns
ans =
1×2 cell array
{'abcde'} {'abcde'}
dot stands for any single character. An escape is needed to a literal dot.
3 Commenti
per isakson
il 8 Gen 2019
dot is a Metacharacters, see the documentaion, which says:
. Any single character, including white space, '..ain' matches sequences of five consecutive characters that end with 'ain'.
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