def term():
"""
"""
token = StringStart() + dice() + StringEnd() \
| StringStart() + dice() + operator() + integer() + StringEnd() \
| StringStart() + dice() + flags() + StringEnd() \
| StringStart() + dice() + flags() + operator() + integer() + StringEnd()
token.setName("term")
token.setResultsName("term")
return token
def parse(self, string):
# An integer value
integer = Word(nums)
integer.setParseAction(Integer.parse)
integer.setName("integer")
# An expression in dice notation
expression = StringStart() + operatorPrecedence(integer, [
(CaselessLiteral('d').suppress(), 2, opAssoc.LEFT, Dice.parse_binary),
(CaselessLiteral('d').suppress(), 1, opAssoc.RIGHT, Dice.parse_unary),
(Literal('/').suppress(), 2, opAssoc.LEFT, Div.parse),
(Literal('*').suppress(), 2, opAssoc.LEFT, Mul.parse),
(Literal('-').suppress(), 2, opAssoc.LEFT, Sub.parse),
(Literal('+').suppress(), 2, opAssoc.LEFT, Add.parse),
(CaselessLiteral('t').suppress(), 1, opAssoc.LEFT, Total.parse),
(CaselessLiteral('s').suppress(), 1, opAssoc.LEFT, Sort.parse),
(Literal('^').suppress(), 2, opAssoc.LEFT, Keep.parse),
(Literal('v').suppress(), 2, opAssoc.LEFT, Drop.parse),
]) + StringEnd()
expression.setName("expression")
this <<= (operator_expression | last)
last = this
# Set the full expression and return it
expression <<= last
return expression
# An integer value
integer = Word(nums)
integer.setParseAction(Integer.parse)
integer.setName("integer")
# An expression in dice notation
expression = StringStart() + operatorPrecedence(integer, [
(CaselessLiteral('d').suppress(), 2, opAssoc.LEFT, Dice.parse_binary),
(CaselessLiteral('d').suppress(), 1, opAssoc.RIGHT, Dice.parse_unary),
(Literal('/').suppress(), 2, opAssoc.LEFT, Div.parse),
(Literal('*').suppress(), 2, opAssoc.LEFT, Mul.parse),
(Literal('-').suppress(), 2, opAssoc.LEFT, Sub.parse),
(Literal('+').suppress(), 2, opAssoc.LEFT, Add.parse),
(CaselessLiteral('t').suppress(), 1, opAssoc.LEFT, Total.parse),
(CaselessLiteral('s').suppress(), 1, opAssoc.LEFT, Sort.parse),
(Literal('^').suppress(), 2, opAssoc.LEFT, Keep.parse),
(Literal('v').suppress(), 2, opAssoc.LEFT, Drop.parse),
]) + StringEnd()
expression.setName("expression")
last = this
# Set the full expression and return it
expression <<= last
return expression
# An integer value
integer = Word(nums)
integer.setParseAction(Integer.parse)
integer.setName("integer")
# An expression in dice notation
expression = StringStart() + operatorPrecedence(integer, [
(CaselessLiteral('d').suppress(), 2, opAssoc.LEFT, Dice.parse_binary),
(CaselessLiteral('d').suppress(), 1, opAssoc.RIGHT, Dice.parse_unary),
(Literal('/').suppress(), 2, opAssoc.LEFT, Div.parse),
(Literal('*').suppress(), 2, opAssoc.LEFT, Mul.parse),
(Literal('-').suppress(), 2, opAssoc.LEFT, Sub.parse),
(Literal('+').suppress(), 2, opAssoc.LEFT, Add.parse),
(Word('+-').suppress(), 1, opAssoc.RIGHT, AddEvenSubOdd.parse),
(Word('+-').suppress(), 2, opAssoc.LEFT, AddEvenSubOdd.parse),
(CaselessLiteral('t').suppress(), 1, opAssoc.LEFT, Total.parse),
(CaselessLiteral('s').suppress(), 1, opAssoc.LEFT, Sort.parse),
(Literal('^').suppress(), 2, opAssoc.LEFT, Keep.parse),
(Literal('v').suppress(), 2, opAssoc.LEFT, Drop.parse),
]) + StringEnd()
expression.setName("expression")
and_.setParseAction(lambda s, l, t: pureldap.LDAPFilter_and(t))
and_.setName("and")
filtercomp = and_ | or_ | not_ | item
filtercomp.setName("filtercomp")
filter_ << (
Suppress(Literal("(").leaveWhitespace())
+ filtercomp
+ Suppress(Literal(")").leaveWhitespace())
)
filter_.setName("filter")
filtercomp.leaveWhitespace()
filter_.leaveWhitespace()
toplevel = StringStart().leaveWhitespace() + filter_ + StringEnd().leaveWhitespace()
toplevel.leaveWhitespace()
toplevel.setName("toplevel")
def parseFilter(s):
"""
Converting source string to pureldap.LDAPFilter
Source string is converted to unicode as pyparsing cannot parse bytes
objects with the rules declared in this module.
"""
s = to_unicode(s)
try:
x = toplevel.parseString(s)
except ParseException as e:
raise InvalidLDAPFilter(e.msg, e.loc, e.line)
assert len(x) == 1
