check for non ascii characters in matlab

问题

i have a result string that sometimes hold non ascii values. These non ascii values cause trouble so i need to check for their presence in the result string.

i tried with these two methods

if (regexpi(result , ^\s\x{20}-\x{7e}))
display('non ascii');
end

and

if any(result  < 128)
else
display('non ascii');
end

but it didn't work. Any help is greatly appreciated.

回答1:

small tweak to the above:

if all(result  < 128)
else
display('non ascii');
end

or

if any(result  > 127)
display('non ascii');
end

来源：https://stackoverflow.com/questions/10303634/check-for-non-ascii-characters-in-matlab