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Improve Float.Parse

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disarray2077 2022-02-15 14:15:57 -03:00 • committed by GitHub
parent f0b5101a67
commit 3ff67cfd7b
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1 changed files with 22 additions and 11 deletions
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33
BeefLibs/corlib/src/Float.bf
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@ -166,12 +166,29 @@ namespace System
public static Result<float> Parse(StringView val) public static Result<float> Parse(StringView val)
{ {
bool isNeg = false; return Parse(val, NumberFormatInfo.CurrentInfo);
double result = 0; }
public static Result<float> Parse(StringView val, NumberFormatInfo info)
{
if (val.IsEmpty)
return .Err;
bool isNeg = val[0] == '-';
bool isPos = val[0] == '+';
int32 offset = isNeg || isPos ? 1 : 0;
double result = 0;
double decimalMultiplier = 0; double decimalMultiplier = 0;
if (val.Equals(info.NegativeInfinitySymbol, true))
return NegativeInfinity;
else if (val.Substring(offset).Equals(info.PositiveInfinitySymbol, true))
return PositiveInfinity;
else if (val.Substring(offset).Equals(info.NaNSymbol, true))
return NaN;
//TODO: Use Number.ParseNumber //TODO: Use Number.ParseNumber
for (int32 i = 0; i < val.Length; i++) for (int32 i = offset; i < val.Length - offset; i++)
{ {
char8 c = val.Ptr[i]; char8 c = val.Ptr[i];
@ -186,7 +203,7 @@ namespace System
break; break;
} }
if (c == '.') if (c == info.NumberDecimalSeparator[0])
{ {
if (decimalMultiplier != 0) if (decimalMultiplier != 0)
return .Err; return .Err;
@ -207,12 +224,6 @@ namespace System
continue; continue;
} }
if ((i == 0) && (c == '-'))
{
isNeg = true;
continue;
}
if ((c >= '0') && (c <= '9')) if ((c >= '0') && (c <= '9'))
{ {
result *= 10; result *= 10;