KEEP-LEFT Function

Truncating, or padding spaces to, a source string to a defined fixed-length - counting from the left.

Purpose

For truncating, or padding spaces to, a source string to a defined fixed-length – counting from the left. The source string can be a static string value or a reference to a data element.

Format

KEEP-LEFT (source-value, targeted-length)

Example

The following config entry in am HL7DataTransformer handler appends a prefix and a suffix to the PID-7 field of an HL7 record. 

<Parameter>
  <!-- CONCAT Example -->
  <Name>transformation-rule</Name>
  <Value>$PID-7=>KEEP-LEFT($$, "8")</Value>
</Parameter>
InputOutcome
PID|||||||200108071220||PID|||||||20010807||

Related

Nil.