Viewing file:  FunctionLibrary.py (1.9 KB) -rw-r--r--
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"""
[28] FunctionCall ::= IRIref ArgList
http://www.w3.org/TR/rdf-sparql-query/#evaluation
"""
from Util import ListRedirect
STR = 0
LANG = 1
LANGMATCHES = 2
DATATYPE = 3
BOUND = 4
isIRI = 5
isURI = 6
isBLANK = 7
isLITERAL = 8
FUNCTION_NAMES = {
STR : 'STR',
LANG : 'LANG',
LANGMATCHES : 'LANGMATCHES',
DATATYPE : 'DATATYPE',
BOUND : 'BOUND',
isIRI : 'isIRI',
isURI : 'isURI',
isBLANK : 'isBLANK',
isLITERAL : 'isLITERAL',
}
class FunctionCall(object):
def __init__(self,name,arguments=None):
self.name = name
self.arguments = arguments is None and [] or arguments
def __repr__(self):
return "%s(%s)"%(self.name,','.join([isinstance(i,ListRedirect) and i.reduce() or i for i in self.arguments]))
class ParsedArgumentList(ListRedirect):
def __init__(self,arguments):
self._list = arguments
class ParsedREGEXInvocation(object):
def __init__(self,arg1,arg2,arg3=None):
self.arg1 = arg1
self.arg2 = arg2
self.arg3 = arg3
def __repr__(self):
return "REGEX(%s,%s%s)"%(
isinstance(self.arg1,ListRedirect) and self.arg1.reduce() or self.arg1,
isinstance(self.arg2,ListRedirect) and self.arg2.reduce() or self.arg2,
isinstance(self.arg3,ListRedirect) and self.arg3.reduce() or self.arg3,)
class BuiltinFunctionCall(FunctionCall):
def __init__(self,name,arg1,arg2=None):
if arg2:
arguments = [arg1,arg2]
else:
arguments = [arg1]
super(BuiltinFunctionCall,self).__init__(name,arguments)
def __repr__(self):
#print self.name
#print [type(i) for i in self.arguments]
return "%s(%s)"%(FUNCTION_NAMES[self.name],','.join([isinstance(i,ListRedirect) and str(i.reduce()) or repr(i) for i in self.arguments]))
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