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Add support for parsing exponential (scientific) notation numbers in input fields

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This commit is contained in:
Wojtek Figat
2021-02-03 23:10:36 +01:00
parent e3142e6408
commit 880a8c9f58
1 changed files with 18 additions and 4 deletions
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22
Source/Editor/Utilities/ShuntingYardParser.cs
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@@ -193,6 +193,7 @@ namespace FlaxEditor.Utilities
{
case 'x':
case 'X':
{
// Hexadecimal value
i++;
token.Clear();
@@ -200,22 +201,35 @@ namespace FlaxEditor.Utilities
throw new ParsingException("invalid hexadecimal number");
while (i + 1 < text.Length && StringUtils.IsHexDigit(text[i + 1]))
{
i++;
token.Append(text[i]);
token.Append(text[++i]);
}
var value = ulong.Parse(token.ToString(), NumberStyles.HexNumber);
token.Clear();
token.Append(value.ToString());
break;
}
default:
{
// Decimal value
while (i + 1 < text.Length && DetermineType(text[i + 1]) == TokenType.Number)
{
i++;
token.Append(text[i]);
token.Append(text[++i]);
}
// Exponential notation
if (i + 2 < text.Length && (text[i + 1] == 'e' || text[i + 1] == 'E'))
{
token.Append(text[++i]);
if (text[i + 1] == '-' || text[i + 1] == '+')
token.Append(text[++i]);
while (i + 1 < text.Length && DetermineType(text[i + 1]) == TokenType.Number)
{
token.Append(text[++i]);
}
}
break;
}
}
}
// Discard solo '-'