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Home > Archive > BizTalk Server General > February 2005 > Flat File Disassember - body segments and Tags
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Flat File Disassember - body segments and Tags
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| Hi,
I have a simple application that has a Flat File Header, Body and Trailer.
The idea is that flat-file disassembler just pulls out the body parts. The
header and trailer parts have Tags, the body part does not.
This works as expected when:
1. there is a header and multiple body parts - but NO Trailer.
2. The Header, Body and Trailer Parts have Tags.
However if the Body parts have no Tags then the parser intreprets the
trailer as a body part :-(
On the Schema I've added some extra attributes e.g. parsing=complexity and
Lookahead depth=0 [means infinite? not 0] but it makes no difference.
I presume the problem is that LookAhead depth does not apply over the
Disassember?
Can this problem be resolved by configuration?
thanks
m
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| Ruslan Yakushev [MSFT] 2005-02-25, 8:46 pm |
| No, this cannot be resolved using configuration. The probing algorithm
basically checks the first level only, and is quite forgiving overall.
This prevents us from having to read a significant portion of the document
into memory to make the determination.
As a general rule, if the document has a trailer, they both document and
trailer should be easily determined at the top level.
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>Hi,
>I have a simple application that has a Flat File Header, Body and Trailer.
>The idea is that flat-file disassembler just pulls out the body parts.
The
>header and trailer parts have Tags, the body part does not.
>This works as expected when:
>1. there is a header and multiple body parts - but NO Trailer.
>2. The Header, Body and Trailer Parts have Tags.
>
>However if the Body parts have no Tags then the parser intreprets the
>trailer as a body part :-(
>
>On the Schema I've added some extra attributes e.g. parsing=complexity and
>Lookahead depth=0 [means infinite? not 0] but it makes no difference.
>
>I presume the problem is that LookAhead depth does not apply over the
>Disassember?
>
>Can this problem be resolved by configuration?
>
>thanks
>m
>
>
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