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Print user-defined error messages as a table

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Jesus Sanchez
Jesus Sanchez 2019 年 12 月 6 日
コメント済み: Jesus Sanchez 2019 年 12 月 6 日
Hello all,
I would like to display an error message that informs the user of a function of the options that he has avaliable. Although its possible to print it in a straight line, I would like to write them as a table, because it looks prettier :)
So far I have this:
error_msg = ['Polygon not supported. List of supported polygons is:', ...
' Triangle Square Pentagon Hexagon Heptagon Octagon'];
error(error_msg);
This throws the error message:
-> Polygon not supported. List of supported polygons is: Triangle Square Pentagon Hexagon Heptagon Octagon.
I would like to show it like (the bullets do not matter, I just wrote them here for formatting):
-> Polygon not supported. List of supported polygons is:
  • Triangle
  • Square
  • Pentagon
  • Hexagon
  • Heptagon
  • Octagon
Is this possible to do? Thanks in advance!

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Adam Danz
Adam Danz 2019 年 12 月 6 日
編集済み: Adam Danz 2019 年 12 月 6 日
msg = sprintf(['Polygon not supported. List of supported polygons is:\n' ...
' Triangle\n Square\n Pentagon\n Hexagon\n Heptagon\n Octagon']);
error(msg) %#ok<SPERR>
The key is to use line breaks in the error message. I've done this using sprintf() along with \n to indicate a line break.
Another method is to use newline() within a character or string array.
msg = ['Polygon not supported. List of supported polygons is:', newline(), ...
'Triangle',newline(),'Square',newline(),'Pentagon',newline(),...
'Hexagon',newline(),'Heptagon',newline(),'Octagon'];
  1 件のコメント
Jesus Sanchez
Jesus Sanchez 2019 年 12 月 6 日
Thanks! I messed up and wrote "/n" instead of "\n" when I tried to do it with like breaks, so I was quite confused

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