spell cheaker stuck in loop
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Ive got a simple enough problem code has to make sure user input is correct but Ive made a very ugly while loop and its not working at all probably needs to be completely redone, any tips are appreciated
if true
InputString = input('Input:', 's');
lenghtInput = length(InputString);
test = 'UuGgCcAa';
i = 1;
j = 1;
c = 1;
correctInput = false;
while correctInput ~= true
if InputString(i) ~= test(j) || j == lenghtInput
++j;
++c;
display(i)
if c == 3
c = 0;
i = i + 1;
end
end
correctInput = true;
end
%code
%it needs to check the only characters used are in the test variable
4 个评论
riley collins
2018-5-7
Walter Roberson
2018-5-7
++j is not valid MATLAB syntax.
Why not just use strcmp() or strcmpi() ?
riley collins
2018-5-7
编辑：riley collins
2018-5-7
KSSV
2018-5-7
If you want to compare strings have a look on strcmp and strcmpi.
采纳的回答
Walter Roberson
2018-5-7
tf = ismember(InputString, 'UuGgCcAa');
correctInput = all(tf);
4 个评论
riley collins
2018-5-7
编辑：riley collins
2018-5-7
riley collins
2018-5-7
Walter Roberson
2018-5-7
tf is an arbitrary variable name for this purpose. It could have been written as
are_individual_letters_correct = ismember(InputString, 'UuGgCcAa');
correctInput = all(are_individual_letters_correct);
The letters that are wrong would be
bad_letters = InputString(~are_individual_letters_correct);
ismember() checks each vector element in InputString against every element of 'UuGgCcAa' and returns true in the places that match and false in the places that do not match. If everything comes out as true then the entire string is valid.
riley collins
2018-5-9
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