Re: annoying symbols in logfiles

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

* Vasily Golyshev [2016-06-10 18:50]:
> here's how Pari logs the session in a log file
> on my fresh install from .deb:
> 
>  GP/PARI CALCULATOR Version 2.5.5 (released)
>           amd64 running linux (x86-64/GMP-5.1.2 kernel) 64-bit version
>        compiled: Sep 30 2013, gcc-4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu4)
>      (readline v6.3 enabled [was v6.2 in Configure], extended help enabled)
> 
> 
> [0;33m ?   [0;34m fi=zetakinit(y^2+3);

These are ANSI escape sequences used to change font colour in gp's
terminal (and which some editors or plain 'cat' are able to render when
viewing the logfile). Color 3, then ?, then color 4 [ by default, this
should print a yellowish question mark, then the rest of the line in
blue ].

>   [0;33m ?   [0;34m ze=zetak(fi,3)/zeta(3)
> %77 = 0.88402381175007985674305791687101180775
> 
> How can one get rid of the extra symbols? Should I recompile using
> Configure/Make?

1) This was fixed in release 2.7.0 (04/2013), any later version should be fine
(current stable version is 2.7.5).

2) Something that will work in all versions is to set the 'colors'
default so that it leaves "prompt" and "input line" alone, see ??colors
[ I use black for these two ]

My advice is to upgrade :-)

Cheers,

    K.B.
--
Karim Belabas, IMB (UMR 5251)  Tel: (+33) (0)5 40 00 26 17
Universite de Bordeaux         Fax: (+33) (0)5 40 00 69 50
351, cours de la Liberation    http://www.math.u-bordeaux.fr/~kbelabas/
F-33405 Talence (France)       http://pari.math.u-bordeaux.fr/  [PARI/GP]
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