This repository contains the source for the Health Level Seven International Clinical Quality Language (CQL) Specification. The specification is stewarded by the HL7 Clinical Decision Support (CDS) Work Group with co-sponsorship from the Clinical Quality Information Work Group. Changes to the specification are made through the HL7 balloting process.

The specification is published by Health Level Seven International at the following location: http://cql.hl7.org

This repository is structured as a standard FHIR implementation guide so that the IGPublisher can be used to build the specification, with some additional content specific to this specification:

• root - IG Publisher content and settings, especially ig.ini and publishing scripts
  • input
    • images
      • assets
      • cql - CQL grammar specification, in G4 (Antlr4 grammar specification)
      • elm - ELM model and schema specifications
      • examples - CQL and ELM XML and JSON examples
    • includes
    • pages
    • vocabulary
  • tests

Commits to this repository will trigger the continuous-integration (CI) build, published here:

http://build.fhir.org/ig/HL7/cql/

Build log is available here:

http://ig-build.fhir.org.s3-website-us-east-1.amazonaws.com/logs/HL7/cql

Full debugging information is available here:

http://build.fhir.org/ig/HL7/cql/debug.tgz

To initially build locally, clone the repository and run the following commands in order below in the root command:

1. _updatePublisher[.bat | .sh] - Process retrieves the current version of the IG publisher and stores it within the input-cache folder. The IG publisher is updated on a regular basis but this process does not have to be executed for every instance of the publication process.

2. _genonce[.bat | .sh] - This initiates the publication process. Launching the .bat file (Windows) or .sh file (Unix/Mac) will launch HL7's IGPublisher program and build/publish the IG one time.

Documentation on how to install and use the FHIR IG publisher is available at IG Publisher Documentation.