improved test (#13)
fixed doc block
divided test with SPARQL literals into 2 tests, one covering the more specific case with a "literal" inside a literal (#13)
disabled one test for now (needs more work) (#13)
added stub for converter that removes variable prefixes (#13)
implemented tests (#13)
implemented converter (#13)
implemented variable conversion to avoid problems with reserved (SQL) keywords like "group" or "select" (#13)
fixed type hint
documented type
added test that checks handling of camelCased variables (#13)
changed SPARQL parsing to make it less error-prone (#13)
implemented encoding of uppercase characters in variable names via underscores (#13)
added class stub for variable name converter (#13)
added comments (#13)
fixed class name; implemented tests (#13)
implemented variable name converter (#13)
moved variable encoding/decoding methods to util class and added tests (#13)
improved examples (#13)
removed result converter and used util methods to encode/decode variable names (#13)