It is most frequently used to read in a C set of channel numbers. Each group is specified by n-m where n C is the first integer in the group and m is the last. The user may enter any number of groups separated by commas. C Single integers may also be included in the list.
C reads in a list of integer groups typed by the user.
If the user does not type a valid entry, the prompt message is C repeated until he does. Character expression containing the user prompt C message. MA must be C dimensioned NMAX or larger by the caller.