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Text File | 1995-01-14 | 1.1 KB | 45 lines | [TEXT/RLAB] |
- //-------------------------------------------------------------------//
-
- // Syntax: input ( STRING )
- // input ( STRING , "s" )
-
- // Description:
-
- // The input function provides an easy method for users to get a
- // simple response from the keyboard. The STRING argument is printed
- // on the standard output (usually the screen), and the program waits
- // until input is entered. Input then returns the input, which can be
- // either a string, or a number. If you want to force the input to be
- // a string, then use the second, and optional argument, "s" to force
- // the return value to be a string.
-
- // If the user does not enter anything when prompted, then input
- // returns an empty matrix.
-
- //-------------------------------------------------------------------//
-
- input = function ( STRING, S )
- {
- if (!exist (STRING)) { STRING = "input: "; }
-
- fprintf ("stdout", "%s", STRING);
- ans = getline ("stdin");
-
- if (length (ans) == 0)
- {
- return [];
- else
- if (exist (S))
- {
- if (class (ans.[1]) == "num")
- {
- return num2str (ans.[1])
- else
- return ans.[1];
- }
- else
- return ans.[1]
- }
- }
- };
-