BNF Extraction

The BNF extraction utility processes the AdqlStoX.jjt file and extracts special comments within the file to compose a set of BNF diagrams which describes ADQL. Currently the utility can be run in two modes.

  • BNF for the projected ADQL v2.0 Standard
  • BNF for the aspects of the ADQL v2.0 Standard supported by AstroGrid