Re: stderr not consistently colored

[Karim BELABAS <Karim.Belabas@math.u-psud.fr>]

On Tue, 10 Sep 2002, Bill Allombert wrote:
> ? \g4
> ? default(colors,"1, 5, 3, 5, 6, 2, 3")
>    colors = "1, 5, 3, 5, 6, 2, 3"
> ? factor(2^64+1,0)
[...]
> IFAC is not consistently colored.

Nice. On Solaris, I see nothing [ my Linux box is down, can't check ]

From the code, it's a buffering issue, with a kind of race condition between
stdout and stderr: the terminal reset code is written to stdout, but factor()
starts writing to stderr (possibly) before stdout is flushed.

So I can

1) either reset stderr also [ a bit stupid since it shouldn't have been
altered during the input loop (the error recovery code would restore it) ]

2) or flush stdout after the input loop.

I've chosen 2). Can you try the following patch ?

    Karim.

Index: src/gp/gp.c
===================================================================
RCS file: /home/megrez/cvsroot/pari/src/gp/gp.c,v
retrieving revision 1.136
diff -c -r1.136 gp.c
*** src/gp/gp.c 2002/09/10 13:36:33     1.136
--- src/gp/gp.c 2002/09/10 13:37:42
***************
*** 2339,2345 ****
      else
  #endif
        res = get_line_from_user(PROMPT, F);
!     if (!disable_color) term_color(c_NONE);
    }
    else
      res = get_line_from_file(DFT_PROMPT,F,infile);
--- 2339,2345 ----
      else
  #endif
        res = get_line_from_user(PROMPT, F);
!     if (!disable_color) { term_color(c_NONE); pariflush(); }
    }
    else
      res = get_line_from_file(DFT_PROMPT,F,infile);
-- 
Karim Belabas                    Tel: (+33) (0)1 69 15 57 48
Dép. de Mathematiques, Bat. 425  Fax: (+33) (0)1 69 15 60 19
Université Paris-Sud             Email: Karim.Belabas@math.u-psud.fr
F-91405 Orsay (France)           http://www.math.u-psud.fr/~belabas/
--
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