Custom Accellerators

Sometimes, having to write each part of a structure on a separate line is more verbose than necessary. YamlGen lets you define a custom accelerator on any FHIR type, which allows in lining of those structures.

Update: we removed Regex and replaced it with a simpler and more powerful syntax. Here you can reference sub nodes using < > angular brackets.

Example with HumanName

The following example are three acelerators. Two for HumanName and one for coding

syntax:
  HumanName: <given> | <family>

This allows typing:

   name: Adam | Everyman

instead of

  name:
     given: Adam
     family: Everyman

Example with Coding

You can also use a syntax accelerator to skip defining sub nodes if only one standard node is used:

  Coding: <system> | <code>

And the third one allows:

  code: http://somesystem.nl|11331007

instead of

  code: 
    system: http://somesystem.nl
    code: 11331007

Combined with variables this can become extra powerful:

  code: $snomed|11331007

More advanced example:

syntax:
    cardinality: <min> .. <max>

nl-core-patient[Patient]:
    .name:
        cardinality: 0 .. *

Note

The syntax definition is currently limited to either

• typename: <reference>
• typename: <reference> <literal> <reference> But is planned to become more flexible in the future.