ANTLR parser for SNOMED CT Compositional Grammar and some parts of the SNOMED CT Query Specification.
OWL API compliant classes for loading and storing SNOMED CT Compositional Grammar expressions in a tab separated file format:
(<expression> \t <label> \n)*
An OWL file containing SNOMED CT will have to be added to src/test/resources directory for the tests, see test.TestSNOMEDCTExpressionParser.testConvertToOWL()
Java heap size might need to be increasd to run tests. Running "mvn test -DMAVEN_OPTS=-Xmx6500m" has been succesful on an 8G machine.
http://www.ihtsdo.org/snomed-ct/snomed-docs/snomed-ct-query-specification/
There is a branch for the updated compositional grammar here: https://github.com/danka74/SnomedCTParser/tree/CG2014