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Removing Trailing Vertical Bar Characters |
If an HL7 message contains segments with unwanted trailing vertical bar | characters, the following Python transformation script will remove them:
import re
value = re.sub("\|+\r", "\r", value)
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The re.sub() function looks for any occurrence of one or more vertical bar characters followed by the carriage return character. This can only occur if unwanted trailing vertical bar characters exist. re.sub() removes these vertical bar characters, and assigns the result to value.
For example, suppose that you have the following message:
MSH|^~\&|MESA_ADT|XYZ_ADMITTING|MESA_IS|XYZ_HOSPITAL|||ADT^A04|101102|P|2.5|||||||| EVN||200004211000||||200004210950 PID|||583020^^^ADT1||WHITE^CHARLES||19980704|M||AI|7616 STANFORD AVE^^ST. LOUIS^MO^63130|||||||20-98-1701|||||||||||| PV1||E||||||5101^NELL^FREDERICK^P^^DR|||||||||||V1002^^^ADT1|||||||||||||||||||||||||200004210950|||||||| |
This script will produce the following:
MSH|^~\&|MESA_ADT|XYZ_ADMITTING|MESA_IS|XYZ_HOSPITAL|||ADT^A04|101102|P|2.5 EVN||200004211000||||200004210950 PID|||583020^^^ADT1||WHITE^CHARLES||19980704|M||AI|7616 STANFORD AVE^^ST. LOUIS^MO^63130|||||||20-98-1701 PV1||E||||||5101^NELL^FREDERICK^P^^DR|||||||||||V1002^^^ADT1|||||||||||||||||||||||||200004210950 |
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For more examples using re.sub(), see Substitution Using Pattern Matching. For more information on using Python to perform scripted transformation, see Scripted Transformation. | ||
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