How to "increment" a pattern in a string array ?

Hello guys,

I have a string character like : '[XYZ]_(?:%d|%d|%d|%d)' .In this example I have 4 values (%d) but maybe in the future I could have more. So I would like to create a loop to increment the pattern automatically.

For instance, if tomorrow I have 5 values, I would like to have :

[XYZ]_(?:%d|%d|%d|%d|%d)

Is there anyway to do this ?

Thanks you really much for your help !

Thibaut

[madhan ravi]

Out of curiosity why do you want to create naming variables dynamically?

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

[Thibaut]

In some applications, I have only 5 variables but in some others, I can have up to 19 variables. It means I have to increment the pattern X times by myself which is really long and source of mistake !

Answer 1

[Ameer Hamza]

Something like this

x = 1:4;
sprintf(['[XYZ]_(?:' repmat('%d|',1,numel(x)-1) '%d)'], x)

Result

ans =
    '[XYZ]_(?:1|2|3|4)'

and

x = 1:10;
sprintf(['[XYZ]_(?:' repmat('%d|',1,numel(x)-1) '%d)'], x)

Result

ans =
    '[XYZ]_(?:1|2|3|4|5|6|7|8|9|10)'

[Thibaut]

Thank you really much !

[Ameer Hamza]

I am glad to be of help!