Line-Terminator-Independent Text I/O (Mostly)

Line-Terminator-Independent Text I/O (Mostly)

[PragmAda Software Engineering]

The version of the PragmAda Reusable Components for ISO/IEC 8652:2007 
now contains PragmARC.Text_IO, a simple text I/O package that can read 
files with DOS/Windows (CR-LF), Mac (CR), and Unix (LF) line 
terminators. It can also write files with any of those line terminators.

The PragmARCs are available from the PragmAda website at

https://pragmada.x10hosting.com/pragmarc.htm

or from the GitHub repository at

https://github.com/jrcarter/PragmARC.git

-- 
Jeffrey R. Carter, President
PragmAda Software Engineering
pragmada.x10hosting.com


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Re: Line-Terminator-Independent Text I/O (Mostly)

[comicfanzine]

Hi ,

There is a End_Error problem with this package , that i don't understand :

dead-code@machine:~/Bureau/PragmARC-Ada-07$ "./main"

Execution terminated by unhandled exception
Exception name: ADA.IO_EXCEPTIONS.END_ERROR
Message: s-stratt.adb:194
Call stack traceback locations:
0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
dead-code@machine:~/Bureau/PragmARC-Ada-07$ 


dead-code@machine:~/Bureau/PragmARC-Ada-07$ addr2line --exe=main 0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
??:0
/home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:210
/home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:93
/home/dead-code/Bureau/PragmARC-Ada-07/main.adb:22
/home/dead-code/Bureau/PragmARC-Ada-07/b~main.adb:293
??:0
??:0
dead-code@machine:~/Bureau/PragmARC-Ada-07$ 

Code : http://pastebin.com/DZuEYC01

Re: Line-Terminator-Independent Text I/O (Mostly)

[Jeffrey R. Carter]

On 02/14/2016 10:39 AM, comicfanzine@gmail.com wrote:
> 
> There is a End_Error problem with this package , that i don't understand :
> 
> dead-code@machine:~/Bureau/PragmARC-Ada-07$ "./main"
> 
> Execution terminated by unhandled exception
> Exception name: ADA.IO_EXCEPTIONS.END_ERROR
> Message: s-stratt.adb:194
> Call stack traceback locations:
> 0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
> dead-code@machine:~/Bureau/PragmARC-Ada-07$ 
> 
> 
> dead-code@machine:~/Bureau/PragmARC-Ada-07$ addr2line --exe=main 0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
> ??:0
> /home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:210
> /home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:93
> /home/dead-code/Bureau/PragmARC-Ada-07/main.adb:22
> /home/dead-code/Bureau/PragmARC-Ada-07/b~main.adb:293

Interesting. I was unable to reproduce the problem. Could you send the file used
as input to pragmada@pragmada.x10hosting.com ?

-- 
Jeff Carter
"Unix and C are the ultimate computer viruses."
Richard Gabriel
99

Re: Line-Terminator-Independent Text I/O (Mostly)

[comicfanzine]

Done , i sent the executable .

Re: Line-Terminator-Independent Text I/O (Mostly)

[PragmAda Software Engineering]

On 02/14/2016 10:39 AM, comicfanzine@gmail.com wrote:
>
> dead-code@machine:~/Bureau/PragmARC-Ada-07$ "./main"
>
> Execution terminated by unhandled exception
> Exception name: ADA.IO_EXCEPTIONS.END_ERROR
> Message: s-stratt.adb:194
> Call stack traceback locations:
> 0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
> dead-code@machine:~/Bureau/PragmARC-Ada-07$
>
>
> dead-code@machine:~/Bureau/PragmARC-Ada-07$ addr2line --exe=main 0x8069483 0x804c5e9 0x804bdfc 0x804c8d0 0x804a04f 0xb75664d1 0x8049a9f
> ??:0
> /home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:210
> /home/dead-code/Bureau/PragmARC-Ada-07/pragmarc-text_io.adb:93
> /home/dead-code/Bureau/PragmARC-Ada-07/main.adb:22
> /home/dead-code/Bureau/PragmARC-Ada-07/b~main.adb:293
> ??:0
> ??:0

This was caused by the input having a final line that was not terminated 
by a line terminator. This is now corrected in the version available 
from the PragmAda web site, or from

https://github.com/jrcarter/PragmARC

-- 
Jeffrey R. Carter, President
PragmAda Software Engineering
pragmada.x10hosting.com


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Re: Line-Terminator-Independent Text I/O (Mostly)

[comicfanzine]

So , it would work with this procedure ? :

     PragmARC.Text_IO.Set_Line_Terminator( PragmARC.Text_IO.Unix_EOL );

I tried with it , but there is still the same problem .

Or maybe ,  it wasn't in the right place ?

Re: Line-Terminator-Independent Text I/O (Mostly)

[Jeffrey R. Carter]

On 02/15/2016 12:52 AM, comicfanzine@gmail.com wrote:
> So , it would work with this procedure ? :
> 
>      PragmARC.Text_IO.Set_Line_Terminator( PragmARC.Text_IO.Unix_EOL );

Set_Line_Terminator determines the line terminator used for output. It has no
effect on input.

The new version of the pkg recognizes EOF as a line terminator for Skip_Line and
Get_Line.

-- 
Jeff Carter
"I don't know why I ever come in here. The
flies get the best of everything."
Never Give a Sucker an Even Break
102

Re: Line-Terminator-Independent Text I/O (Mostly)

[comicfanzine]

Yes , no more runtime error .
But , there is 2 lines in excess at the end of the final file ...
Worst than Ada.text_io's package .

57|End Main;
58|
59|

Re: Line-Terminator-Independent Text I/O (Mostly)

[Jeffrey R. Carter]

On 02/15/2016 03:24 PM, comicfanzine@gmail.com wrote:
> Yes , no more runtime error .
> But , there is 2 lines in excess at the end of the final file ...
> Worst than Ada.text_io's package .
> 
> 57|End Main;
> 58|
> 59|

What are the last few lines output by hd on that file?

-- 
Jeff Carter
"I don't know why I ever come in here. The
flies get the best of everything."
Never Give a Sucker an Even Break
102