From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zack Weinberg <zack@codesourcery.com>
To: Florian Krohm <florian@edamail.fishkill.ibm.com>
Cc: Guillaume <guillaume.thouvenin@polymtl.ca>, Joe Buck <jbuck@synopsys.com>, gcc@gcc.gnu.org
Subject: Re: fdump-ast-original and strg:
Date: Fri, 30 Nov 2001 10:26:00 -0000
Message-ID: <20011130102600.A20309@codesourcery.com>
References: <Pine.LNX.4.33L2.0111301216140.1619-100000@leffetriple.localdomain> <01113013120701.01459@warp9.fishkill.ibm.com>
X-SW-Source: 2001-11/msg01632.html
Message-ID: <20011130102600.vIPO1AKTgvjucffYO8GOi9Lj8H_JFlVuo_VafOHvIPE@z>

On Fri, Nov 30, 2001 at 01:12:07PM -0500, Florian Krohm wrote:
> I'm afraid, things are even a bit more complex.
> Consider a string containing two characters, the first
> of which contains the bit pattern 00001010. The second
> character is '2'. If you want to recover the original
> representation for that string you will have to use a 
> string concatenation e.g. "\12" "2" or "\x6" "2". 

I think you meant "\xa" "2".

> Note that you cannot write "\122" as that would specify
> only a single character.
> You could call this a pathological example, but I think
> you want to come up with an algorithm that can handle
> the general case.

"\0122" will work fine.  (Or, in this case, "\n2" assuming ASCII.)

We already have code to emit strings safely, into the assembly output;
you could just use that.

zw