hi, how to use strsplit function to split a line of string into multiple lines when a predefined number of characters is reached?

2015 9 17
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更新时间：2015 9 17
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for example: if I have: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", I want to split it into lines after 4 characters and then I could have:"AAAA" "AAAA" "AAAA" "AAAA"

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Star Strider
Star Strider 2015-9-17

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This divides them into 8 rather than 4 strings:
str = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';
SplitLen = 4;
CheckLen = SplitLen*fix(length(str)/SplitLen); % So ‘reshape’ Will Work
Result = {reshape(str(1:CheckLen), [], 4)}; % Result As Cell Array

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sahar hemmati
sahar hemmati 2015-9-17
BUT! instead of saying to split into n strings, I want to split into strings of length l, so i don't know how many strings I will have at the end!
Star Strider
Star Strider 2015-9-17
I forgot to include ‘SplitLen’ as an argument to reshape. The result is unchanged:
str = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';
SplitLen = 4; % Length Of Strings
CheckLen = SplitLen*fix(length(str)/SplitLen); % So ‘reshape’ Will Work
Result = {reshape(str(1:CheckLen), [], SplitLen)}; % Result As Cell Array
sahar hemmati
sahar hemmati 2015-9-17
still it does not work, because if the length of remainder of string is less than what was defined it will be ignored and i don't want this
Star Strider
Star Strider 2015-9-17
The string argument to reshape has to be an integer multiple of the desired length of the substrings. The easiest way to deal with the remainder of the string is to append it to the end:
Result = {reshape(str(1:CheckLen), [], SplitLen); str(CheckLen+1:end)};

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dpb
dpb 2015-9-17

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s=reshape(s,L,[]);
Requires rem(length(S)/L)=0, of course.

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Guillaume
Guillaume 2015-9-17
So the safest thing is to precede the code with:
assert(mod(numel(s), L) == 0, 'String length is not a multiple of the split-length');

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