From: Philippe Troin <phil@fifi.org>
To: "Johann 'Myrkraverk' Oskarsson" <johann@myrkraverk.com>
Cc: ZSH Users <zsh-users@sunsite.dk>
Subject: Re: Are there "binary" variables?
Date: 02 Jun 2006 19:41:42 -0700 [thread overview]
Message-ID: <87bqtbgduh.fsf@tantale.fifi.org> (raw)
In-Reply-To: <87lksfgdyq.fsf@tantale.fifi.org>
Philippe Troin <phil@fifi.org> writes:
> "Johann 'Myrkraverk' Oskarsson" <johann@myrkraverk.com> writes:
>
> > Is there a way to work with binary data in zsh? That is, more
> > specifically, is there a way to compare ^E to 5 and get true? Or
> > convert a character (say, ^E again) to its integer representation?
>
> Zsh's parameters are 8-bits clean.
>
> You could do the above with:
>
> typeset -A asc
> for i in {0..255}; do asc[$(print "\\$(([##8]$i))")]=$i;done
> var=$'\0\1\2\3'
> for i in $#var; do print "$i: $asc[$var[$i]]"; done
Actually, the last line should read:
for i in {1..$#var}; do print "$i: $asc[$var[$i]]"; done
Phil.
next prev parent reply other threads:[~2006-06-03 2:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-03 0:21 Johann 'Myrkraverk' Oskarsson
2006-06-03 2:39 ` Philippe Troin
2006-06-03 2:41 ` Philippe Troin [this message]
2006-06-03 5:51 ` Bart Schaefer
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