Question

How do I use HPath to find a segment with a blank field/component?
For example I want to find a PID segment where PID-4 is blank:

PID|1|54664|125-54664||Mouse^Mickey^L||19410101||||||

Answer 1

Be sure to use a quoted empty string after the equals sign.

Example: PID[@4='']

 

Comments

Also see this question: https://www.qvera.com/kb/index.php/940/how-to-test-if-a-node-or-field-in-a-message-is-blank?show=941#a941