Re: simple help with Text_IO

[enterpoop.mit.edu!spool.mu.edu!howland.reston.ans.net!bogus.sura.net!jhun ix.hcf.jhu.edu!aplcen.apl.jhu.edu!ddsdx2.jhuapl.edu!dlc@ucbvax.Berkeley.EDU (D ave Collard x7468)]

In <C1unnH.Lu9@undergrad.math.waterloo.edu> ccalbrec@laplace.uwaterloo.ca (Cory
 C. Albrecht) writes:

>Could somebody tell me (email please) why this programme,
>which compiles properly, seemingly stalls at the
>line indicated? i.e. I type in a line followed by <cr>,
>but nothing happens. What should happen is that this:

>*:: <the line that was typed>

>should be printed to the console, but isn't. And nothing
>happens. The input prompt:

>*>>

>is printed, then I can type something, but after <cr>
>nothing happens. :(


>With Text_IO; Use Text_IO;

>Procedure main is 

>instr, tokstr : String(1..255);

>Begin
>Loop
>    New_Line;
>    Put("*>> ");
>    Get(instr);                 -- this is where it stalls and won't go furthe
r
>    New_Line;
>    Put("*:: ");
>    Put(instr);
>    Exit When instr="quit";
>End Loop;
>End; --main

It doesn't stall, you just haven't finished entering the string yet!  Try
keep entering characters until you have entered 255 characters.

That is what get does -- What you want is Get_Line 

last : natural;

begin
loop
  new_line;
  put("*>> ");
  get_line(instr, last);
  new_line;
  Put("*:: ");
  Put(instr(1..last);

  etc.


--Thor
collard@capsrv.jhuapl.edu
dlc@ddsdx2.jhuapl.edu