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[NTOSKRNL]

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Merge some changes from r50021 to FsRtlIsNameInExpression() to make code easier to read and understand...

svn path=/trunk/; revision=50022
This commit is contained in:
Pierre Schweitzer 2010-12-13 11:33:29 +00:00
parent 435cdd8c49
commit fd45340e00
1 changed files with 28 additions and 28 deletions
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56
reactos/ntoskrnl/fsrtl/name.c
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@ -22,63 +22,63 @@ FsRtlIsNameInExpressionPrivate(IN PUNICODE_STRING Expression,
IN BOOLEAN IgnoreCase,
IN PWCHAR UpcaseTable OPTIONAL)
{
ULONG i = 0, j, k = 0;
USHORT ExpressionPosition = 0, NamePosition = 0, MatchingChars;
PAGED_CODE();
ASSERT(!IgnoreCase || UpcaseTable);
while (i < Name->Length / sizeof(WCHAR) && k < Expression->Length / sizeof(WCHAR))
while (NamePosition < Name->Length / sizeof(WCHAR) && ExpressionPosition < Expression->Length / sizeof(WCHAR))
{
if ((Expression->Buffer[k] == (IgnoreCase ? UpcaseTable[Name->Buffer[i]] : Name->Buffer[i])) ||
(Expression->Buffer[k] == L'?') || (Expression->Buffer[k] == DOS_QM) ||
(Expression->Buffer[k] == DOS_DOT && Name->Buffer[i] == L'.'))
if ((Expression->Buffer[ExpressionPosition] == (IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition])) ||
(Expression->Buffer[ExpressionPosition] == L'?') || (Expression->Buffer[ExpressionPosition] == DOS_QM) ||
(Expression->Buffer[ExpressionPosition] == DOS_DOT && Name->Buffer[NamePosition] == L'.'))
{
i++;
k++;
NamePosition++;
ExpressionPosition++;
}
else if (Expression->Buffer[k] == L'*')
else if (Expression->Buffer[ExpressionPosition] == L'*')
{
if (k < (Expression->Length / sizeof(WCHAR) - 1))
if (ExpressionPosition < (Expression->Length / sizeof(WCHAR) - 1))
{
if (Expression->Buffer[k+1] != L'*' && Expression->Buffer[k+1] != L'?' &&
Expression->Buffer[k+1] != DOS_DOT && Expression->Buffer[k+1] != DOS_QM &&
Expression->Buffer[k+1] != DOS_STAR)
if (Expression->Buffer[ExpressionPosition+1] != L'*' && Expression->Buffer[ExpressionPosition+1] != L'?' &&
Expression->Buffer[ExpressionPosition+1] != DOS_DOT && Expression->Buffer[ExpressionPosition+1] != DOS_QM &&
Expression->Buffer[ExpressionPosition+1] != DOS_STAR)
{
while ((IgnoreCase ? UpcaseTable[Name->Buffer[i]] : Name->Buffer[i]) != Expression->Buffer[k+1] &&
i < Name->Length / sizeof(WCHAR)) i++;
while ((IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition]) != Expression->Buffer[ExpressionPosition+1] &&
NamePosition < Name->Length / sizeof(WCHAR)) NamePosition++;
}
}
else
{
i = Name->Length / sizeof(WCHAR);
NamePosition = Name->Length / sizeof(WCHAR);
}
k++;
ExpressionPosition++;
}
else if (Expression->Buffer[k] == DOS_STAR)
else if (Expression->Buffer[ExpressionPosition] == DOS_STAR)
{
j = i;
while (j < Name->Length / sizeof(WCHAR))
MatchingChars = NamePosition;
while (MatchingChars < Name->Length / sizeof(WCHAR))
{
if (Name->Buffer[j] == L'.')
if (Name->Buffer[MatchingChars] == L'.')
{
i = j;
NamePosition = MatchingChars;
}
j++;
MatchingChars++;
}
k++;
ExpressionPosition++;
}
else
{
i = Name->Length / sizeof(WCHAR);
NamePosition = Name->Length / sizeof(WCHAR);
}
}
if (k + 1 == Expression->Length / sizeof(WCHAR) && i == Name->Length / sizeof(WCHAR) &&
Expression->Buffer[k] == DOS_DOT)
if (ExpressionPosition + 1 == Expression->Length / sizeof(WCHAR) && NamePosition == Name->Length / sizeof(WCHAR) &&
Expression->Buffer[ExpressionPosition] == DOS_DOT)
{
k++;
ExpressionPosition++;
}
return (k == Expression->Length / sizeof(WCHAR) && i == Name->Length / sizeof(WCHAR));
return (ExpressionPosition == Expression->Length / sizeof(WCHAR) && NamePosition == Name->Length / sizeof(WCHAR));
}
/* PUBLIC FUNCTIONS **********************************************************/