Escaping of single quotes doesn't work

[kinghuang]

kevi doesn't handle escaping of single quotes correctly. Escaping double quotes seems to work.

kevi

>>> from kevi.predicates import Predicate
>>> p3 = Predicate.predicateWithFormat("FUNCTION(funcs, 'papl_is_in_orga', event.entity_id, 'Dean\\'s Office - Medicine') == True")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/predicates.py", line 81, in predicateWithFormat
    return scanner.parsePredicate()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 408, in parsePredicate
    return self.parseConjunction()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 411, in parseConjunction
    l = self.parseNot()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 463, in parseNot
    return self.parseComparison()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 476, in parseComparison
    left = self.parseExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 208, in parseExpression
    return self.parseBinaryExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 378, in parseBinaryExpression
    left = self.parseAdditionExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 365, in parseAdditionExpression
    left = self.parseMultiplicationExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 352, in parseMultiplicationExpression
    left = self.parsePowerExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 342, in parsePowerExpression
    left = self.parseFunctionalExpression()
  File "/Users/kchuang/Activities/Research_Management_System/repos/ucalgary/inference-rules/kevi/scanners.py", line 316, in parseFunctionalExpression
    raise ValueError('Missing ) in function arguments')
ValueError: Missing ) in function arguments

OS X Playground (Swift)

let p3 = NSPredicate(format: "FUNCTION(funcs, \"papl_is_in_orga\", event.entity_id, \"Dean's Office - Medicine\") == True")

// Console: FUNCTION(funcs, "papl_is_in_orga" , event.entity_id, "Dean's Office - Medicine") == 1