From: David Alan Black <dblack@...>
Date: 2001-07-05T10:51:58+09:00
Subject: [ruby-talk:17265] Re: enhancing Ruby error messages for out of the bound constant Fixnum?

On Thu, 5 Jul 2001, Guillaume Cottenceau wrote:

> matz@ruby-lang.org (Yukihiro Matsumoto) writes:
>
>
> [...]
>
> > |But with Ruby here, it silently does, well, I don't know:
> >
> > <snip>
> >
> > It considers the pattern /\068/ as \06 (octal 6) and following "8".
> > Sould it parse like Perl's?
>
> Definitely, when you write \067 and then \068, you don't expect that one
> is parsed as octal 67 and the other one octal 6 then 8.
>
> I think it should parse like Perl's..

I'm still not getting what the difference is, other than a warning
from Perl and no warning from Ruby.

   candle:~/hacking/perl$ perl -lw
   $x = "\068";
   print join ",", map { ord } split "", $x;
   $x =~ s/\068/x/;
   print $x;

   Illegal octal digit ignored at - line 1.
   Illegal octal digit ignored at - line 3.
   Illegal octal digit ignored at - line 3.
   ^D
   6,56
   x


Both the string and the regexp are being parsed by Perl (5.005_03) as
octal 6 followed by 8.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav