48 lines
1.1 KiB
Python
48 lines
1.1 KiB
Python
#!/usr/bin/env python
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"""Plus joli"""
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import pyparsing
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txt = pyparsing.Word("".join(c for c in pyparsing.printables if c not in '=()|&'),exact=1)
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ne = pyparsing.Literal('!=')
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eq = pyparsing.Literal('=')
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andop = pyparsing.oneOf('&')
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orop = pyparsing.oneOf('|')
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expr = pyparsing.operatorPrecedence( txt,
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[
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(ne, 2, pyparsing.opAssoc.RIGHT),
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(eq, 2, pyparsing.opAssoc.RIGHT),
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(andop, 2, pyparsing.opAssoc.LEFT),
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(orop, 2, pyparsing.opAssoc.LEFT),]
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)
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def simplify(l):
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if not isinstance(l, list):
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return l
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if len(l) == 1:
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return simplify(l[0])
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else:
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return [simplify(i) for i in l]
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def toprefix(l):
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if not isinstance(l, list):
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return l
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op=l[1]
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args=[toprefix(i) for i in l if i!=op]
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return [op]+args
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def toldapfilter(l):
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if not isinstance(l, list):
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return l
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op=l[0]
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if op == "=":
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return "%s=%s" % (l[1], l[2])
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elif op == "!=":
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return "!(%s=%s)" % (l[1], l[2])
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return op + ''.join(['(%s)' % toldapfilter(i) for i in l[1:]])
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def human_to_ldap(str):
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return "(%s)" % toldapfilter(toprefix(simplify(expr.parseString(str).asList())))
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