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Libraries Guide

10.4.0
- 10.5

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Example

In an ASN.1 BER file, there is a header before the first message and separators between the subsequent messages. The header and the separators are random sequences of hexadecimal 00 and FF bytes, of any length. For example, a header or separator might have the following form:

00 00 FF 00 FF FF FF 00 FF 00

The following configuration enables the

AsnToXml

processor to find the header and separators. The

header

and

separator

properties use regular expressions to define the pattern.

pre_processor = AsnToXml
  asn_file = SGSN-CDR-def-v2009A.asn
  header = PatternSearch
    pattern = "[\x00|\xFF]+"
  separator = PatternSearch
    pattern = "[\x00|\xFF]+"

The processor ignores the headers and separators, and it processes the messages between them.

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