4:08 p.m.
Dear all,
I am using 1.9.14 (build date 2013-11-21). I found that the command,
setinfo, may have a small bug when used with "sprintf." See the following
script
<hansl>
nulldata 10
series x=normal()
lag=3
series y=movavg(x(-1),lag)
sprintf sInfo "This is generated from movavg(%s(-1),%d)","x",lag
setinfo y -d @sInfo
</hansl>
It seems that setinfo with a string @sInfo will not allow any space in that
string.
Thanks
Yi-Nung Yang
4:13 p.m.
On Thu, 13 Mar 2014, yinung at Gmail wrote:
Dear all,
I am using 1.9.14 (build date 2013-11-21). I found that the command,
setinfo, may have a small bug when used with "sprintf." See the following
script
<hansl>
nulldata 10
series x=normal()
lag=3
series y=movavg(x(-1),lag)
sprintf sInfo "This is generated from movavg(%s(-1),%d)","x",lag
setinfo y -d @sInfo
</hansl>
It seems that setinfo with a string @sInfo will not allow any space in that
string.
If the string contains spaces it must be quoted:
setinfo y -d "@sInfo"
Allin Cottrell
4:33 p.m.
Dear Allin,
Yes, it works.
Thanks a lot.
Yi-Nung Yang
2014-03-13 0:13 GMT+08:00 Allin Cottrell <cottrell(a)wfu.edu>:
On Thu, 13 Mar 2014, yinung at Gmail wrote:
> Dear all,
>
> I am using 1.9.14 (build date 2013-11-21). I found that the command,
> setinfo, may have a small bug when used with "sprintf." See the following
> script
>
> <hansl>
> nulldata 10
> series x=normal()
> lag=3
> series y=movavg(x(-1),lag)
> sprintf sInfo "This is generated from
movavg(%s(-1),%d)","x",lag
> setinfo y -d @sInfo
> </hansl>
>
> It seems that setinfo with a string @sInfo will not allow any space in
that
> string.
If the string contains spaces it must be quoted:
setinfo y -d "@sInfo"
Allin Cottrell
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5 p.m.
Am 12.03.2014 17:13, schrieb Allin Cottrell:
On Thu, 13 Mar 2014, yinung at Gmail wrote:
>
> It seems that setinfo with a string @sInfo will not allow any space in that
> string.
If the string contains spaces it must be quoted:
setinfo y -d "@sInfo"
Although Yi-Nung does have a point in that it is a bit unfortunate that
the syntactical correctness of the line:
'setinfo y -d @sInfo'
is ambiguous, depending on the content of sInfo. I understand why that
it so, but still...
cheers,
sven
5:30 p.m.
On Wed, 12 Mar 2014, Sven Schreiber wrote:
Am 12.03.2014 17:13, schrieb Allin Cottrell:
> On Thu, 13 Mar 2014, yinung at Gmail wrote:
>>
>> It seems that setinfo with a string @sInfo will not allow any space in that
>> string.
>
> If the string contains spaces it must be quoted:
>
> setinfo y -d "@sInfo"
>
Although Yi-Nung does have a point in that it is a bit unfortunate that
the syntactical correctness of the line:
'setinfo y -d @sInfo'
is ambiguous, depending on the content of sInfo. I understand why that
it so, but still...
That would be a valid objection if setinfo took a string variable as an
argument, and the correctness depended on whether or not the value of that
variable contained spaces. But as things are setinfo requires a string
literal. The "@..." syntax just dumps a string literal into the command
line, and as usual a string containing spaces must be quoted to keep the
pieces stuck together.
In general, there's no telling whether @-substitution will yield a
syntactically correct command unless you know the expansion of the "@"
term. This is in itself a potential problem, but it's the price paid for
the flexibility that string substitution gives.
Allin
4:20 p.m.
Hi,
I just tested your script in current CVS build and it reproduces.
However if you use quotes it will work as expected:
setinfo y -d "@sInfo"
(Probably Allin is saying the same ;)
Hélio
On Wed, Mar 12, 2014 at 4:08 PM, yinung at Gmail <yinung.cycu(a)gmail.com>wrote:
Dear all,
I am using 1.9.14 (build date 2013-11-21). I found that the command,
setinfo, may have a small bug when used with "sprintf." See the following
script
<hansl>
nulldata 10
series x=normal()
lag=3
series y=movavg(x(-1),lag)
sprintf sInfo "This is generated from movavg(%s(-1),%d)","x",lag
setinfo y -d @sInfo
</hansl>
It seems that setinfo with a string @sInfo will not allow any space in
that string.
Thanks
Yi-Nung Yang
_______________________________________________
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Gretl-users(a)lists.wfu.edu
http://lists.wfu.edu/mailman/listinfo/gretl-users
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5 comments
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participants (4)
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Allin Cottrell -
Hélio Guilherme -
Sven Schreiber -
yinung＠Gmail