public FileSelector(string selectionCriteria, bool traverseDirectoryReparsePoints)
{
if (!string.IsNullOrEmpty(selectionCriteria))
{
this._Criterion = FileSelector._ParseCriterion(selectionCriteria);
}
this.TraverseReparsePoints = traverseDirectoryReparsePoints;
}
private static SelectionCriterion _ParseCriterion(string s)
{
if (s == null)
{
return(null);
}
s = FileSelector.NormalizeCriteriaExpression(s);
if (s.IndexOf(" ") == -1)
{
s = "name = " + s;
}
string[] array = s.Trim().Split(new char[]
{
' ',
'\t'
});
if (array.Length < 3)
{
throw new ArgumentException(s);
}
SelectionCriterion selectionCriterion = null;
Stack <FileSelector.ParseState> stack = new Stack <FileSelector.ParseState>();
Stack <SelectionCriterion> stack2 = new Stack <SelectionCriterion>();
stack.Push(FileSelector.ParseState.Start);
int i = 0;
while (i < array.Length)
{
string text = array[i].ToLower();
string text2 = text;
if (text2 != null)
{
if (FileSelector.< > f__switch$map0 == null)
{
FileSelector.< > f__switch$map0 = new Dictionary <string, int>(14)
{
{
"and",
0
},
{
"xor",
0
},
{
"or",
0
},
{
"(",
1
},
{
")",
2
},
{
"atime",
3
},
{
"ctime",
3
},
{
"mtime",
3
},
{
"length",
4
},
{
"size",
4
},
{
"filename",
5
},
{
"name",
5
},
{
"type",
6
},
{
string.Empty,
7
}
};
}
int num;
if (FileSelector.< > f__switch$map0.TryGetValue(text2, out num))
{
FileSelector.ParseState parseState;
switch (num)
{
case 0:
{
parseState = stack.Peek();
if (parseState != FileSelector.ParseState.CriterionDone)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
if (array.Length <= i + 3)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
LogicalConjunction conjunction = (LogicalConjunction)Enum.Parse(typeof(LogicalConjunction), array[i].ToUpper(), true);
selectionCriterion = new CompoundCriterion
{
Left = selectionCriterion,
Right = null,
Conjunction = conjunction
};
stack.Push(parseState);
stack.Push(FileSelector.ParseState.ConjunctionPending);
stack2.Push(selectionCriterion);
break;
}
case 1:
parseState = stack.Peek();
if (parseState != FileSelector.ParseState.Start && parseState != FileSelector.ParseState.ConjunctionPending && parseState != FileSelector.ParseState.OpenParen)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
if (array.Length <= i + 4)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
stack.Push(FileSelector.ParseState.OpenParen);
break;
case 2:
parseState = stack.Pop();
if (stack.Peek() != FileSelector.ParseState.OpenParen)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
stack.Pop();
stack.Push(FileSelector.ParseState.CriterionDone);
break;
case 3:
{
if (array.Length <= i + 2)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
DateTime dateTime;
try
{
dateTime = DateTime.ParseExact(array[i + 2], "yyyy-MM-dd-HH:mm:ss", null);
}
catch (FormatException)
{
try
{
dateTime = DateTime.ParseExact(array[i + 2], "yyyy/MM/dd-HH:mm:ss", null);
}
catch (FormatException)
{
try
{
dateTime = DateTime.ParseExact(array[i + 2], "yyyy/MM/dd", null);
}
catch (FormatException)
{
try
{
dateTime = DateTime.ParseExact(array[i + 2], "MM/dd/yyyy", null);
}
catch (FormatException)
{
dateTime = DateTime.ParseExact(array[i + 2], "yyyy-MM-dd", null);
}
}
}
}
dateTime = DateTime.SpecifyKind(dateTime, DateTimeKind.Local).ToUniversalTime();
selectionCriterion = new TimeCriterion
{
Which = (WhichTime)Enum.Parse(typeof(WhichTime), array[i], true),
Operator = (ComparisonOperator)EnumUtil.Parse(typeof(ComparisonOperator), array[i + 1]),
Time = dateTime
};
i += 2;
stack.Push(FileSelector.ParseState.CriterionDone);
break;
}
case 4:
{
if (array.Length <= i + 2)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
string text3 = array[i + 2];
long size;
if (text3.ToUpper().EndsWith("K"))
{
size = long.Parse(text3.Substring(0, text3.Length - 1)) * 1024L;
}
else if (text3.ToUpper().EndsWith("KB"))
{
size = long.Parse(text3.Substring(0, text3.Length - 2)) * 1024L;
}
else if (text3.ToUpper().EndsWith("M"))
{
size = long.Parse(text3.Substring(0, text3.Length - 1)) * 1024L * 1024L;
}
else if (text3.ToUpper().EndsWith("MB"))
{
size = long.Parse(text3.Substring(0, text3.Length - 2)) * 1024L * 1024L;
}
else if (text3.ToUpper().EndsWith("G"))
{
size = long.Parse(text3.Substring(0, text3.Length - 1)) * 1024L * 1024L * 1024L;
}
else if (text3.ToUpper().EndsWith("GB"))
{
size = long.Parse(text3.Substring(0, text3.Length - 2)) * 1024L * 1024L * 1024L;
}
else
{
size = long.Parse(array[i + 2]);
}
selectionCriterion = new SizeCriterion
{
Size = size,
Operator = (ComparisonOperator)EnumUtil.Parse(typeof(ComparisonOperator), array[i + 1])
};
i += 2;
stack.Push(FileSelector.ParseState.CriterionDone);
break;
}
case 5:
{
if (array.Length <= i + 2)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
ComparisonOperator comparisonOperator = (ComparisonOperator)EnumUtil.Parse(typeof(ComparisonOperator), array[i + 1]);
if (comparisonOperator != ComparisonOperator.NotEqualTo && comparisonOperator != ComparisonOperator.EqualTo)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
string text4 = array[i + 2];
if (text4.StartsWith("'") && text4.EndsWith("'"))
{
text4 = text4.Substring(1, text4.Length - 2).Replace("\u0006", " ");
}
selectionCriterion = new NameCriterion
{
MatchingFileSpec = text4,
Operator = comparisonOperator
};
i += 2;
stack.Push(FileSelector.ParseState.CriterionDone);
break;
}
case 6:
{
if (array.Length <= i + 2)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
ComparisonOperator comparisonOperator2 = (ComparisonOperator)EnumUtil.Parse(typeof(ComparisonOperator), array[i + 1]);
if (comparisonOperator2 != ComparisonOperator.NotEqualTo && comparisonOperator2 != ComparisonOperator.EqualTo)
{
throw new ArgumentException(string.Join(" ", array, i, array.Length - i));
}
selectionCriterion = new TypeCriterion
{
AttributeString = array[i + 2],
Operator = comparisonOperator2
};
i += 2;
stack.Push(FileSelector.ParseState.CriterionDone);
break;
}
case 7:
stack.Push(FileSelector.ParseState.Whitespace);
break;
default:
goto IL_7BA;
}
parseState = stack.Peek();
if (parseState == FileSelector.ParseState.CriterionDone)
{
stack.Pop();
if (stack.Peek() == FileSelector.ParseState.ConjunctionPending)
{
while (stack.Peek() == FileSelector.ParseState.ConjunctionPending)
{
CompoundCriterion compoundCriterion = stack2.Pop() as CompoundCriterion;
compoundCriterion.Right = selectionCriterion;
selectionCriterion = compoundCriterion;
stack.Pop();
parseState = stack.Pop();
if (parseState != FileSelector.ParseState.CriterionDone)
{
throw new ArgumentException("??");
}
}
}
else
{
stack.Push(FileSelector.ParseState.CriterionDone);
}
}
if (parseState == FileSelector.ParseState.Whitespace)
{
stack.Pop();
}
i++;
continue;
}
}
IL_7BA:
throw new ArgumentException("'" + array[i] + "'");
}
return(selectionCriterion);
}