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| parsing hex to number using ASCII table |
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| Vitor |
 Posted: Wed Jun 17, 2009 9:40 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| mqjeff wrote: |
| So it's an integer. |
I said that 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| JULLRICH |
| Posted: Wed Jun 17, 2009 10:21 am Post subject: |
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Apprentice
Joined: 11 Aug 2005
Posts: 42
Location: München
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Hi,
...that means I have to parse the first 2 bytes as integer to get the length-element and the other bytes as string using the length-element as LengthReference.
Isn't it?
I was doing this before also:
It is not working!
Result:
Message data : ''0001JB001234''
Text element offset : 2
Expected length of element : 3072
=> Exception
InputMsg:
X'000C303030314A42303031323334'
There must be another way of interpreting this 000C according to the ASCII Table ...
SRY, but it is my second MsgSet, I build!
another way:
When setting up an CWF with a single Element of physType LengthEncodedString 2 then WMB expects data length of 3072 in case of 000C and 2048 in case of 0008
=> it is also not working |
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| mqjeff |
| Posted: Wed Jun 17, 2009 10:33 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| You did not configure your integer physical properties to match the correct byte order. You're receiving the integer in network byte order, since it's coming over TCP/IP. |
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| JULLRICH |
| Posted: Thu Jun 18, 2009 1:40 am Post subject: |
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Apprentice
Joined: 11 Aug 2005
Posts: 42
Location: München
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You must be right, because when working with one byte describing the length, it is working well.
So I have to change the byte order in that integers are being interpreted.
=> BigEndian LittleEndian ....
... and it worked fine also with 2 bytes of encoded length!
THX to you! |
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