How can i read multiple values in a string?

Hi guys,

I have a problem getting some values.

Basically, i have a variable (string) that always has the same format but with a variable length.

Some examples:

1. " H:2T:16799C:7| H:2T:16803C:15 | H:1T:17399C:11 "
2. " H:4T:16500C:7 "
3. " H:6T:568C:20| H:5T:313929C:11 "

How we can see, the variable has the same format in all examples but can have a variable number of repetitions.

I want to read the values, for the first example: 2 - 16799 - 7 | 2 - 16803 - 15 | 1 - 17399 - 11.

How can i do this dynamically? To be able to read in all cases.

Thanks.

Answer 1

[Joel Handy]

I believe a regular expression along these lines is what you are looking for.

data = regexp('1º:" H:2T:16799C:7| H:2T:16803C:15 | H:1T:17399C:11 "', ...
              'H:(?<H>\d+)T:(?<T>\d+)C:(?<C>\d+)', 'names')
          
H = str2double({data.H})
T = str2double({data.T})
C = str2double({data.C})

If these are all lines in a file, you can read the entire file into a signle string and process everything at once.

MyString = sprintf('1º:" H:2T:16799C:7| H:2T:16803C:15 | H:1T:17399C:11 "\n2º:" H:4T:16500C:7 "\n3º:" H:6T:568C:20| H:5T:313929C:11 "')
regexp(MyString, 'H:(?<H>\d+)T:(?<T>\d+)C:(?<C>\d+)', 'names')

[Marco Silva]

The regular expression works perfectly. Thank you !!