Simple Python valuidator for Cypher query syntax.
Install the Python ANTLR library with antlr4-python3-runtime==4.9.2 (reflected in requirements.txt).
You can then run python cypher_validator.py
ANTLR was downloaded with curl -O https://www.antlr.org/download/antlr-4.9.2-complete.jar, the BloodHound Cypher grammar file was downloaded with curl -O https://raw.githubusercontent.com/SpecterOps/BloodHound/main/packages/go/cypher/grammar/Cypher.g4, and the Python lexer/parser files were generated with java -jar antlr-4.9.2-complete.jar -Dlanguage=Python3 Cypher.g4