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Screening 0x0A (Linefeed) Characters

The HL7 protocol is very strict about the format of segments. Each segment should end with a 0x0D (carriage return) character. No other termination characters, such as 0x0A characters, should be present.

However, applications that process HL7 in batch format often have to deal with messages in which 0x0A characters have been inserted. This causes problems during parsing.

To solve this problem, insert the following code in the Global Inbound Script:

# The value variable stores the incoming message data.
# We can alter it to filter out unwanted characters.
value = strip_chars('\x0A', value)

	For more information on functions that strip characters in Chameleon, see Editing a String and Character Stripping Functions.