Query Mode

When no window-mode is available, the user is prompted for the parameters. In this example, the dialog will be

     An integer value
     INTEGER     I$           1 <CR>
     A value between 0 and 1
     REAL        A$           0.1 <CR>
     Any character string
     CHARACTER   CHAIN$       ABCD <CR>
     4 Real values 
     REAL        ARRAY$[4]    1 2 3 4 <CR>
     A valid name
     FILE        FILE$        TESTFILE.DAT <CR>
     Any values 
     VALUES      OLD$         acos(-1) 1.234 <CR>

The prompting method is always the same: an explanatory first line indicating the meaning of the parameter, and a second line in the following format:

     TYPE NAME[Dimensions]

where

• TYPE indicates the type of parameter (CHARACTER, FILE, INTEGER, LOGICAL, REAL). A parameter of type FILE is a character string containing a valid file name. VALUES is intended to hold multiple values (which can be mathematical expression), without any prior on the number of values.
• NAME is the parameter name
• [Dimensions] are the parameter dimensions, in case it is an array. Only REAL and INTEGER parameters may be arrays.

Query mode is also used for missing parameters in Window-mode.