public static bool TryReadIntegerString(this MemoryVariable variable, BinaryReader reader, out long value)
{
value = 0;
try
{
string stringValue;
var success = TryReadString(variable, reader, out stringValue);
if (!success)
{
return(false);
}
long integerValue;
if (long.TryParse(stringValue.Trim(), out integerValue))
{
value = integerValue;
}
else
{
value = 0;
}
return(true);
}
catch { return(false); }
}
public static bool TryReadChar(this MemoryVariable variable, BinaryReader reader, out char value)
{
value = '\0';
try
{
byte byteValue;
var success = TryReadByte(variable, reader, out byteValue);
if (!success)
{
return(false);
}
value = (char)byteValue;
return(true);
}
catch { return(false); }
}
public static bool TryReadBoolean(this MemoryVariable variable, BinaryReader reader, out bool value)
{
value = false;
try
{
byte byteValue;
var success = TryReadByte(variable, reader, out byteValue);
if (!success)
{
return(false);
}
value = byteValue != 0;
return(true);
}
catch { return(false); }
}
public static bool TryReadString(this MemoryVariable variable, BinaryReader reader, out string value)
{
value = null;
try
{
var address = DereferenceValue(variable, reader, isStringType: true);
if (address == 0)
{
return(false);
}
reader.BaseStream.Position = address;
value = reader.ReadNullTerminatedString(variable.MaxLength);
return(true);
}
catch { return(false); }
}
public static bool TryReadUInt64(this MemoryVariable variable, BinaryReader reader, out ulong value)
{
value = 0;
try
{
var address = DereferenceValue(variable, reader);
if (address == 0)
{
return(false);
}
reader.BaseStream.Position = address;
value = reader.ReadUInt64();
return(true);
}
catch { return(false); }
}
public static long DereferenceValue(this MemoryVariable variable, BinaryReader reader, bool isStringType = false)
{
long address = variable.Address;
if (variable is DynamicMemoryVariable)
{
var dynamicVar = variable as DynamicMemoryVariable;
foreach (var offset in dynamicVar.Offets)
{
if (address < MinimumAddress || address > MaximumAddress)
{
return(0);
}
address = DereferencePointer(address, reader);
if (address == 0)
{
return(0);
}
if (offset.IsNegative)
{
address -= offset.Offset;
}
else
{
address += offset.Offset;
}
}
if (isStringType)
{
reader.BaseStream.Position = address;
for (int i = 0; i < 4; i++)
{
var c = reader.ReadChar();
bool allowWhiteSpace = i != 0;
bool allowDash = i == 0;
if (char.IsLetterOrDigit(c))
{
continue;
}
if (char.IsWhiteSpace(c) && allowWhiteSpace)
{
continue;
}
if (c == '-' && allowDash)
{
continue;
}
if (c == '\0')
{
continue;
}
address = DereferencePointer(address, reader);
break;
}
}
}
return(address);
}
