Ugur - what is the intent of this code?
if text1(control) == '[^a-z]'
text1=text1(1:(control-1));
end
Why reset text1 to some subset of characters? I guess what I would like to know is what output are you looking for? Do you need to use a for loop? As for your condition, perhaps you are trying to exit if the character is not one of a-z (or A-Z). If that is the case then try,
for control=1:length(text1)
if ~isempty(regexpi(text1(control),'[^a-z]'))
text1=text1(1:(control-1));
break;
end
end
which "works" though it will exit/break on space characters too. To allow space characters just change your expression to '[^a-z\s]'.
