Why is it that special characters are not being recognized correctly in my standalone app?

"Why is it that special characters are not being recognized correctly in my script?

For instance,

msgbox("Time μs");

when I run the script file with this command, a message box displays "Time μs" as expected.

However, when I create a standalone EXE of the script created using deploytool in Matlab 2023a, the message box displays 'Time □s' instead. (symbol μ became empty square)

This was not an issue in Matlab 2019, and it's causing my code to fail. I use column names like "Time μs" to identify columns in a table.

Answer 1

[Bruno Luong]

It looks like it related to mfile encoding. Through the compiler; the mfiles are encrypted and decrypted and run. May be one the the chain element do not consider correctly the enconding. The most workaround is to replace in the code 'µ' by char(181) or string(char(181)).

[Vyshakh Pv]

It's not just a single character or a specific location; this will require a substantial amount of effort and testing.

I'm puzzled by the varying behavior of Matlab between different versions. My project comprises approximately 7 to 9K lines of code, and I encountered numerous issues after transitioning from 2019 to 2023.

I diligently addressed and tested all these issues within the .m script.

However, the standalone executable now exhibits different behavior compared to the script. Does this mean I have to go through all the testing again twice?"

[Bruno Luong]

There is a default behavior change of source file encoding in R2020a IIRC (default UTF8). You may be affected by this specific change.

[Vyshakh Pv]

I appreciate your response. However, I'm disappointed that I chose Matlab for my implementation, especially considering its already limited backward compatibility. Furthermore, their tendency to make such changes only adds to the frustration.

(readtable method has been updated, which also broke my code)