How can i access one cell {1x1} to split/separate its contained value?

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ARN 2018-8-17

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https://ww2.mathworks.cn/matlabcentral/answers/415225-how-can-i-access-one-cell-1x1-to-split-separate-its-contained-value

编辑： Stephen23 2018-8-17

采纳的回答： Stephen23

alarm_ON_118715_9-29-42.txt

在 MATLAB Online 中打开

I have a .txt file , which contains data like follows

----------------Wed Aug 15 09:30:26 2018Wed Aug 15 09:30:26 2018Wed Aug 15 09:30:26 2018Wed Aug 15 09:30:26 2018----------------Wed Aug 15 09:30:28 2018Wed Aug 15 09:30:28 2018Wed Aug 15 09:30:28 2018Wed Aug 15 09:30:28 2018

I want to separate/split this data in following manner:

-------- (break)
-------- (break)
Wed Aug 15 09:30:26 2018 (break)
Wed Aug 15 09:30:26 2018 (break)
Wed Aug 15 09:30:26 2018(break)
Wed Aug 15 09:30:26 2018(break)
--------(break)
--------(break)
Wed Aug 15 09:30:28 2018(break)
Wed Aug 15 09:30:28 2018(break)
Wed Aug 15 09:30:28 2018(break)
Wed Aug 15 09:30:28 2018(break)

if I call/access that .txt file with fopen and fgets or importdata, all the data get stored in one cell {1x1}.How can i access this one cell to split/separate in shown manner?

P.S: Break means space or starting a new line

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Stephen23 2018-8-17

@Ahmad Riaz Nayer: please upload your data file by clicking the paperclip button.

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Answer 1

Stephen23 2018-8-17

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https://ww2.mathworks.cn/matlabcentral/answers/415225-how-can-i-access-one-cell-1x1-to-split-separate-its-contained-value#answer_333114

编辑：Stephen23 2018-8-17

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test.txt

Here is a simple solution using regexprep:

>> str = fileread('test.txt');
>> regexprep(str,'(-{8}|\d{4})','$1\n')
ans = --------
--------
Wed Aug 15 09:30:26 2018
Wed Aug 15 09:30:26 2018
Wed Aug 15 09:30:26 2018
Wed Aug 15 09:30:26 2018
--------
--------
Wed Aug 15 09:30:28 2018
Wed Aug 15 09:30:28 2018
Wed Aug 15 09:30:28 2018
Wed Aug 15 09:30:28 2018

The test file is attached (you did not provide any sample file).

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ARN 2018-8-17

Thanks for the answer. One more thing, Its still in one cell {1x1} while i want to have the separated data in new cell or stored in one new matrix. So for your test.txt file it should make 1x12 cell/matrix. Thanks

Stephen23 2018-8-17

编辑：Stephen23 2018-8-17

在 MATLAB Online 中打开

@Ahmad Riaz Nayer: your original question indicated that you wanted line breaks, so that is what I inserted into the string. If you want to split the string into multiple strings, then try regexp:

>> str = fileread('test.txt');
>> C = regexp(str,'(-{8}|[\w :]+?\d{4})','match');
>> C{:}
ans = --------
ans = --------
ans = Wed Aug 15 09:30:26 2018
ans = Wed Aug 15 09:30:26 2018
ans = Wed Aug 15 09:30:26 2018
ans = Wed Aug 15 09:30:26 2018
ans = --------
ans = --------
ans = Wed Aug 15 09:30:28 2018
ans = Wed Aug 15 09:30:28 2018
ans = Wed Aug 15 09:30:28 2018
ans = Wed Aug 15 09:30:28 2018