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Improvements to Number parsing

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This commit is contained in:
disarray2077 2023-05-14 16:54:26 -03:00
parent 4c65652955
commit 5d28f8e1f0
10 changed files with 418 additions and 90 deletions
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29
BeefLibs/corlib/src/Int64.bf
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@ -9,6 +9,7 @@ namespace System
{
case Ok;
case NoValue;
case Overflow;
case InvalidChar(int64 partialResult);
}
@ -104,7 +105,7 @@ namespace System
strBuffer.Append(char8Ptr);
}
public static Result<int64, ParseError> Parse(StringView val, NumberStyles style)
public static Result<int64, ParseError> Parse(StringView val, NumberStyles style = .Number, CultureInfo cultureInfo = null)
{
//TODO: Use Number.ParseNumber
@ -128,22 +129,26 @@ namespace System
if ((c >= '0') && (c <= '9'))
{
result *= radix;
result += (int32)(c - '0');
result &*= radix;
result &+= (int64)(c - '0');
}
else if ((c >= 'a') && (c <= 'f'))
{
result *= radix;
result += c - 'a' + 10;
if (radix != 0x10)
return .Err(.InvalidChar(result));
result &*= radix;
result &+= c - 'a' + 10;
}
else if ((c >= 'A') && (c <= 'F'))
{
result *= radix;
result += c - 'A' + 10;
if (radix != 0x10)
return .Err(.InvalidChar(result));
result &*= radix;
result &+= c - 'A' + 10;
}
else if ((c == 'X') || (c == 'x'))
{
if (result != 0)
if ((!style.HasFlag(.AllowHexSpecifier)) || (i == 0) || (result != 0))
return .Err(.InvalidChar(result));
radix = 0x10;
}
@ -157,14 +162,12 @@ namespace System
}
else
return .Err(.InvalidChar(result));
if (isNeg ? (uint64)result > (uint64)MinValue : (uint64)result > (uint64)MaxValue)
return .Err(.Overflow);
}
return isNeg ? -result : result;
}
public static Result<int64, ParseError> Parse(StringView val)
{
return Parse(val, .Any);
}
}
}