in JetBrains.Etw.HostService.Updater/src/Util/ConvertUtil.cs [76:85]
private static byte ParseHexSymbol(char ch)
{
if ('0' <= ch && ch <= '9')
return (byte) (ch - '0');
if ('A' <= ch && ch <= 'F')
return (byte) (ch - 'A' + 10);
if ('a' <= ch && ch <= 'f')
return (byte) (ch - 'a' + 10);
throw new FormatException($"Failed to parse hex symbol '{ch}'");
}