Re: Please Help.

[Dale Stanbrough <dale@goanna.cs.rmit.EDU.AU>]

"with Text_IO;
 use Text_IO;
 Procedure GetName is
 Name : String(1..12);
 begin 
 	Put("Please enter name : ");
 	Get(Name);
 end GetName;


Simple answer:

 with Text_IO;  use Text_IO;
 Procedure GetName is
    Name : String(1..12);
    Last : Natural;
 begin 
 	Put ("Please enter name : ");
 	Get_Line (Name, Last);
 	
 	Put ("Hello ");
 	Put_Line (Name (1..Last));
 end GetName;


Long answer:

 If you want to deal with variable length data like this (esp
 store it in a record) then use an appropriate type, rather than
 string, e.g. Unbounded_String.
 
 
 with Text_IO;               use Text_IO;
 with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
 with Unbounded_IO;          use Unbounded_IO;
 
 Procedure GetName is
    Name : Unbounded_String;
 begin 
 	Put ("Please enter name : ");
 	Get_Line (Name);
 	
 	Put ("Hello ");
 	Put_Line (Name);
 end GetName;


(note that Unbounded_IO is a simple package that i wrote). In my
experience variable length string handling is one thing that has
turned students off Ada a lot. Unbounded_String is a godsend in
this respect. It's a pity that a standard I/O package wasn't
defined in the standard for this type.


Dale