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<== Date ==> <== Thread ==>

Subject: Re: StreamDevice protocol question
From: Dirk Zimoch <[email protected]>
To: "Shepherd, EL \(Emma\)" <[email protected]>
Cc: [email protected]
Date: Mon, 27 Aug 2007 10:29:59 +0200
Hi Emma,

I found the bug in StreamFormatConverter.cc.

In StdCharsetConverter::parse() (line 387), replace
    info.printf("%%%d[", fmt.width);
with
    info.printf("%%%s%d[", fmt.flags & skip_flag ? "*" : "", fmt.width);

I will put a patch on the StreamDevice website.

Dirk


Shepherd, EL (Emma) wrote:
Hi,

I've been battling with a Streams protocol and thought I would ask for
some advice from the experts!

I have the following input from my Streams device: "RC1C0V0.00E2.50"

Now this is just an echo of a command I have sent so instead of saving
the information I want to use the * modifier to simply skip the floating
point numbers, like so:

in "RC1C0V%*[.0-9]E%*f";

(NB: I am using a charset instead of %f for the first number since the E
character could be interpreted as an exponent).

This doesn't work, and I get the following Streams error:

2007/08/23 09:07:49.260 BLXXI-EA-LED-01:CH1SENDOUTPUT: Input
"RC1C0V0.00E2.50" too short. No match for "E"

However, if I remove the * modifiers and put field names there instead,
it works fine:

in "RC1C0V%(MYRECORD.VAL)[.0-9]E%(MYRECORD.VAL)f";

If I leave the field name in for the first number and %*f for the second
I get the following error:

2007/08/23 09:25:25.632 BLXXI-EA-LED-01:CH1SENDOUTPUT: Input "2.50" does
not match format %*f


Any ideas why I am not able to use the * flag in these cases?


Thanks,

Emma



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References:
StreamDevice protocol question Shepherd, EL (Emma)

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