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mantis 9061 change lsl integer parsing again...

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This commit is contained in:
UbitUmarov
2023-02-22 21:50:08 +00:00
parent dbf675d2d1
commit 8c7c991320
2 changed files with 79 additions and 20 deletions
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97
OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
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@@ -2181,29 +2181,88 @@ namespace OpenSim.Region.ScriptEngine.Shared
public LSLInteger(LSLString s) : this(MemoryExtensions.AsSpan(s.m_string)) { }
public LSLInteger(ReadOnlySpan<char> s)
{
value = 0;
if (s.Length == 0)
return;
int indx = 0;
char c;
bool neg = false;
int rc;
try
{
do
{
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
if (c != ' ')
break;
}
while (++indx < s.Length);
if (c == '0')
{
if (++indx >= s.Length)
return;
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
if (c == 'x' || c == 'X')
{
uint uvalue = 0;
while (++indx < s.Length)
{
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
rc = Utils.HexNibbleWithChk(c);
if (rc < 0)
return;
checked
{
uvalue *= 16;
uvalue += (uint)rc;
}
value = (int)uvalue;
}
return;
}
}
else if (c == '+')
{
if (++indx >= s.Length)
return;
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
}
else if (c == '-')
{
if (++indx >= s.Length)
return;
neg = true;
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
}
while (c >= '0' && c <= '9')
{
rc = c - '0';
checked
{
value *= 10;
value += rc;
}
if(++indx >= s.Length)
break;
c = Unsafe.Add(ref MemoryMarshal.GetReference(s), indx);
}
if(neg)
value = -value;
return;
}
catch (OverflowException)
{
value = -1;
}
catch
{
value = 0;
}
else
{
try
{
s = s.TrimStart();
if (s.StartsWith("0x", StringComparison.OrdinalIgnoreCase))
value = int.Parse(s[2..], NumberStyles.HexNumber);
else
value = int.Parse(s,NumberStyles.Integer);
}
catch (OverflowException)
{
value = -1;
}
catch
{
value = 0;
}
}
}
#endregion