def parseMFQL(self, content):
'''
parse a MFQL source file an return a list of Statements.
@param content: the name of the file to be parsed or directly an file
object.
@type content: string || file.
@return: the list of statements.
@rtype: list<Statement>
'''
if isinstance(content, str) or isinstance(content, unicode):
stream = antlr3.ANTLRStringStream(content)
else:
stream = antlr3.ANTLRInputStream(content)
lexer = MFQLLexer(stream)
tokens = antlr3.CommonTokenStream(lexer)
parser = MFQLParser(tokens)
result = parser.stmts()
parser.eof()
validator = CompositeVisitor()
validator.addComponent(IsKeyValidator())
if isinstance(result, list):
for elem in result:
elem.walk(validator)
else:
result.walk(validator)
return result
def parse(self, rule, input):
char_stream = antlr3.ANTLRStringStream(input)
lexer = MFQLLexer(char_stream)
tokens = antlr3.CommonTokenStream(lexer)
parser = MFQLParser(tokens)
rule = getattr(parser, rule)
result = rule()
parser.eof()
return result