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From: "Jens K S" <jens.schoedt@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: how to use GNAT.Expect
Date: 28 Jul 2006 11:23:00 -0700
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Date: 2006-07-28T11:23:00-07:00
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After downloading the newest AdaCore GNAT compiler for OS X the problem
is gone.

Jens K S wrote:
> Hi all,
>
> I new to Ada and I've been fiddling with this problem for too long
> now.
> Basically I want to transfer some files using Ada, but since I don't
> want to create my own FTP implementation I want to start a new FTP
> process from Ada (I use echo in example below). Works fine with
> GNAT.OS_Lib, but when I use GNAT.Expect I get no output and an
> exception?? What am I doing wrong here?
>
> By the way, I use Xcode on OS X. Does anyone know how I can "Step
> Into" code in the Expect package? This could also help me locate the
> problem....
>
> -------------------------- code -------------------------------
> with Ada.Text_io;
> use Ada.Text_io;
> with GNAT.Expect;
> with GNAT.OS_Lib;
>
> procedure ClonesTest is
>
> 	Fd: GNAT.Expect.Process_Descriptor;
> 	Timeout: Integer := 10000; -- 10 sec
> 	Result: GNAT.Expect.Expect_Match;
> 	Sucess: boolean;
> 	P: GNAT.OS_Lib.Process_Id;
> begin
>
> 	-- using Lib
> 	P:= GNAT.OS_Lib.Non_Blocking_Spawn("/bin/echo", (1 => new String'
> ("from Lib Non_Block")));
> 	GNAT.OS_Lib.Spawn ("/bin/echo", (1 => new String' ("from Lib Block")),
> Sucess);
>
> 	-- using Expect
> 	GNAT.Expect.Non_Blocking_Spawn (Fd, "/bin/echo", (1 => new String'
> ("from Expect")));
> 	GNAT.Expect.Expect (Fd, Result, ".*", Timeout);
> 	Put_Line ("Seen: " & GNAT.Expect.Expect_Out (Fd));
>
>     Put_Line("Hello, World again with Ada!");
>
> end ClonesTest;
>
>
> --------------- Output ---------------
>
> from Lib Non_Block
> from Lib Block
>
> raised GNAT.EXPECT.PROCESS_DIED : g-expect.adb:594
>
> ClonesTest has exited with status 1.
> 
> 
> Thanks in advance
> 
> Jens