Re: length in gawk returns wrong value

[Corinna Vinschen <corinna-cygwin at cygwin dot com>]

On Jul 19 11:27, Ralf wrote:
> Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> 
> > 
> > Uh oh.  1.7.9 is old.  Please update.
> > 
> > > 0000000   R 374   c   k   e   n  \r  \n
> > > 0000010
> > > Length: 1
> > > 
> > > What can I do to get the correct length in gawk without changing
> > > ttt.txt?
> > 
> > Dunno.  This is not what I see.  What did you have $LANG and $LC_CTYPE
> > set to?  Here's what I see:
> > 
> >   $ uname -a
> >   CYGWIN_NT-6.1 vmbert7 1.7.16(0.261/5/3) 2012-07-09 14:51 i686 Cygwin
> > 
> >   $ echo $LANG
> >   C.UTF-8
> > 
> >   $ echo "RÃcken" > ttt.txt
> >   $ od -c ttt.txt
> >   0000000   R 303 274   c   k   e   n  \n
> >   0000010
> > 
> >   $ gawk '{print "Length: " length($0)}' ttt.txt
> >   Length: 6
> > 
> >   $ gawk --version | head -1
> >   GNU Awk 4.0.1
> > 
> > Corinna
> > 
> 
> After updating I added following lines on top of my script:
>  export LANG=C.UTF-8
>  echo LANG: $LANG
>  echo LC_CTYPE: $LC_TYPE
>  c:/unix/bin/gawk --version | head -1
> 
> And this is my output:
>  LANG: C.UTF-8
>  LC_CTYPE:
>  GNU Awk 4.0.1
>  CYGWIN_NT-6.0-WOW64 WIESWEG 1.7.15(0.260/5/3) 2012-05-09 10:25 i686 Cygwin
>  0000000   R 374   c   k   e   n  \r  \n
>  0000010
>  Length: 5
> 
> Very strange!

Not at all.  The file contains an invalid character.  0374 is the
umlaut-u in the ISO-8859-1 or ISO-8859-15 codesets.  Try this:

  $ LC_ALL=de_DE gawk '{print "Length: " length($0)}' ttt.txt
  Length: 6

When you create the file under the UTF-8 codeset, you'll get:

  0000000   R 303 274   c   k   e   n  \n


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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