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Re: new module 'system-quote'
From: |
Eli Zaretskii |
Subject: |
Re: new module 'system-quote' |
Date: |
Wed, 09 May 2012 07:59:36 +0300 |
> From: Ben Pfaff <address@hidden>
> Cc: Eli Zaretskii <address@hidden>, address@hidden
> Date: Tue, 08 May 2012 21:03:34 -0700
>
> Bruno Haible <address@hidden> writes:
>
> > It turns out that on native Windows, when going through cmd.exe, it is
> > not possible to pass arguments that contains a newline ('\n') or a CR ('\r')
> > character: the command gets truncated at such a character. Compared to
> > this problem, the handling of the '%' character is easy.
>
> Is there any chance that putting a newline or CR in an
> environment variable, then using %varname%, would allow one to
> embed such a character?
Not surprisingly, it doesn't work, at least in my testing. The small
program below displays just "bar".
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{
int r = _putenv ("FOO=bar\nbaz");
if (r)
perror ("putenv");
else
{
r = system ("echo %FOO%");
fprintf (stderr, "`echo %%FOO%%' returned %d\n", r);
}
return 0;
}
- Re: new module 'system-quote', (continued)
- Re: new module 'system-quote', Bruno Haible, 2012/05/11
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/11
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/13
- Re: unavoidable wildcard expansion on Windows 7, Bruno Haible, 2012/05/13
- Re: unavoidable wildcard expansion on Windows 7, Eli Zaretskii, 2012/05/13
- Re: new module 'system-quote', Bruno Haible, 2012/05/10
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/11
- Re: new module 'system-quote', Bruno Haible, 2012/05/12
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/12
- Re: new module 'system-quote', Ben Pfaff, 2012/05/09
- Re: new module 'system-quote',
Eli Zaretskii <=
- Re: new module 'system-quote', Bruno Haible, 2012/05/09
- Re: new module 'system-quote', Bastien ROUCARIES, 2012/05/09
- Re: new module 'system-quote', Bruno Haible, 2012/05/09
- Re: new module 'system-quote', Eric Blake, 2012/05/09
- Re: new module 'system-quote', Bruno Haible, 2012/05/09
- Re: new module 'system-quote', Paul Eggert, 2012/05/09
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/09
- Re: new module 'system-quote', Paul Eggert, 2012/05/09
- Re: new module 'system-quote', Eli Zaretskii, 2012/05/09
- Re: new module 'system-quote', Bruno Haible, 2012/05/09