On Thu, Sep 3, 2015 at 8:45 AM, Stephane Chazelas <
stephane.chaze...@gmail.com> wrote:
> 2015-09-01 16:23:08 -0400, Greg Wooledge:
> > On Tue, Sep 01, 2015 at 03:13:57PM -0500, Dennis Williamson wrote:
> > > The version of dash I have handy (0.5.7) has math support which IMHO is
> > > broken:
> >
2015-09-01 16:23:08 -0400, Greg Wooledge:
> On Tue, Sep 01, 2015 at 03:13:57PM -0500, Dennis Williamson wrote:
> > The version of dash I have handy (0.5.7) has math support which IMHO is
> > broken:
> >
> > $ foo=bar
> > $ bar=5
> > $ echo $foo
> > bar
> > $ echo $((foo))
> > dash: 4: Illegal numb
On 9/2/15 11:48 AM, Greg Wooledge wrote:
> On Wed, Sep 02, 2015 at 11:24:42AM -0400, Chet Ramey wrote:
>> On 9/2/15 11:19 AM, Greg Wooledge wrote:
>>> On Wed, Sep 02, 2015 at 10:16:14AM -0500, Dennis Williamson wrote:
The $ is implied.
>>>
>>> That is completely absurd. (And wrong.)
>>
>> Not
On Wed, Sep 02, 2015 at 11:24:42AM -0400, Chet Ramey wrote:
> On 9/2/15 11:19 AM, Greg Wooledge wrote:
> > On Wed, Sep 02, 2015 at 10:16:14AM -0500, Dennis Williamson wrote:
> >> The $ is implied.
> >
> > That is completely absurd. (And wrong.)
>
> Not exactly. When the arithmetic evaluator enc
On 9/2/15 11:19 AM, Greg Wooledge wrote:
> On Wed, Sep 02, 2015 at 10:16:14AM -0500, Dennis Williamson wrote:
>> The $ is implied.
>
> That is completely absurd. (And wrong.)
Not exactly. When the arithmetic evaluator encounters a token that is of
the form of a shell identifier (`bar'), in a co
On Wed, Sep 02, 2015 at 10:16:14AM -0500, Dennis Williamson wrote:
> The $ is implied.
That is completely absurd. (And wrong.)
On Wed, Sep 2, 2015 at 2:16 AM, Andreas Schwab
wrote:
> Dennis Williamson writes:
>
> > I disagree. The _expansion_ produced "bar"
>
> That's not an expansion. Only $ introduces an expansion.
>
> Andreas.
>
>
The $ is implied.
--
Visit serverfault.com to get your system administration questio
On 9/1/15 5:05 PM, Dennis Williamson wrote:
> It's the line above those two where I demonstrate the failure in the
> indirection and equivalency.
>
> $ echo $((foo)) # expansion succeeds, indirection fails
> dash: 4: Illegal number: bar
Because `foo' is expanded, but the value is not treated as
On 9/1/15 12:50 AM, Clint Hepner wrote:
> Bash Version: 4.3
> Patch Level: 42
> Release Status: release
>
> Description:
>
> Parameter names are recursively evaluated in an arithmetic expression, but
> this
> is not done consistently.
Parameter names are expanded and treated as expressions whe
On 9/1/15 4:13 PM, Dennis Williamson wrote:
> The version of dash I have handy (0.5.7) has math support which IMHO is
> broken:
>
> $ foo=bar
> $ bar=5
> $ echo $foo
> bar
> $ echo $((foo))
> dash: 4: Illegal number: bar
> $ echo $(($foo))
> 5
> $ echo $((bar))
> 5
> $ echo $(($bar))
> 5
Dash
Dennis Williamson writes:
> On Tue, Sep 1, 2015 at 4:24 PM, Andreas Schwab
> wrote:
>
>> Dennis Williamson writes:
>>
>> > $ echo $((foo)) # expansion succeeds, indirection fails
>> > dash: 4: Illegal number: bar
>>
>> The indirection didn't fail, it just didn't produce a number, so the
>> exp
On Tue, Sep 1, 2015 at 4:24 PM, Andreas Schwab
wrote:
> Dennis Williamson writes:
>
> > $ echo $((foo)) # expansion succeeds, indirection fails
> > dash: 4: Illegal number: bar
>
> The indirection didn't fail, it just didn't produce a number, so the
> expression is malformed.
>
> Andreas.
>
> -
Dennis Williamson writes:
> $ echo $((foo)) # expansion succeeds, indirection fails
> dash: 4: Illegal number: bar
The indirection didn't fail, it just didn't produce a number, so the
expression is malformed.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6
On Tue, Sep 1, 2015 at 3:23 PM, Greg Wooledge wrote:
> On Tue, Sep 01, 2015 at 03:13:57PM -0500, Dennis Williamson wrote:
> > The version of dash I have handy (0.5.7) has math support which IMHO is
> > broken:
> >
> > $ foo=bar
> > $ bar=5
> > $ echo $foo
> > bar
> > $ echo $((foo))
> > dash: 4:
On Tue, Sep 01, 2015 at 03:13:57PM -0500, Dennis Williamson wrote:
> The version of dash I have handy (0.5.7) has math support which IMHO is
> broken:
>
> $ foo=bar
> $ bar=5
> $ echo $foo
> bar
> $ echo $((foo))
> dash: 4: Illegal number: bar
> $ echo $(($foo))
> 5
> $ echo $((bar))
> 5
> $ echo
On Tue, Sep 1, 2015 at 12:50 PM, Greg Wooledge wrote:
> On Tue, Sep 01, 2015 at 12:50:23AM -0400, Clint Hepner wrote:
> > Repeat-By:
> >
> > foo=bar
> > bar=5
> > echo $(( foo ))# produces 5
> > echo $(( foo++ )) # produces 5
> > echo $foo # produces 6, not bar
>
On Tue, Sep 01, 2015 at 12:50:23AM -0400, Clint Hepner wrote:
> Repeat-By:
>
> foo=bar
> bar=5
> echo $(( foo ))# produces 5
> echo $(( foo++ )) # produces 5
> echo $foo # produces 6, not bar
> echo $bar # produces 5, not 6
bar was never changed from
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: darwin14.5.0
Compiler: clang
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
-DCONF_OSTYPE='darwin14.5.0' -DCONF_MACHTYPE='x86_64-apple-darwin14.5.0'
-DCONF_VENDOR='apple' -DLOCALEDIR='/usr/loca
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