| public static GetDigitValue ( String s, int index ) : int | ||
| s | String | |
| index | int | |
| return | int | |
/// <summary>Gets the digit value of the numeric character at the specified index of the specified string.</summary>
/// <returns>The digit value of the numeric character at the specified index of the specified string.-or- -1, if the character at the specified index of the specified string is not a digit.</returns>
/// <param name="s">The <see cref="T:System.String" /> containing the Unicode character for which to get the digit value. </param>
/// <param name="index">The index of the Unicode character for which to get the digit value. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="s" /> is null. </exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="index" /> is outside the range of valid indexes in <paramref name="s" />. </exception>
public static int GetDigitValue(string s, int index)
{
if (s == null)
{
throw new ArgumentNullException("s");
}
return(CharUnicodeInfo.GetDigitValue(s[index]));
}
/// <summary>Gets the numeric value associated with the specified character.</summary>
/// <returns>The numeric value associated with the specified character.-or- -1, if the specified character is not a numeric character.</returns>
/// <param name="ch">The Unicode character for which to get the numeric value. </param>
public static double GetNumericValue(char ch)
{
int digitValue = CharUnicodeInfo.GetDigitValue(ch);
if (digitValue >= 0)
{
return((double)digitValue);
}
switch (ch)
{
case '⅓':
return(0.33333333333333331);
case '⅔':
return(0.66666666666666663);
default:
switch (ch)
{
case 'ⅼ':
return(50.0);
case 'ⅽ':
return(100.0);
case 'ⅾ':
return(500.0);
case 'ⅿ':
return(1000.0);
case 'ↀ':
return(1000.0);
case 'ↁ':
return(5000.0);
case 'ↂ':
return(10000.0);
default:
switch (ch)
{
case '৴':
return(1.0);
case '৵':
return(2.0);
case '৶':
return(3.0);
case '৷':
return(4.0);
default:
switch (ch)
{
case 'Ⅼ':
return(50.0);
case 'Ⅽ':
return(100.0);
case 'Ⅾ':
return(500.0);
case 'Ⅿ':
return(1000.0);
default:
switch (ch)
{
case '¼':
return(0.25);
case '½':
return(0.5);
case '¾':
return(0.75);
default:
switch (ch)
{
case '௰':
return(10.0);
case '௱':
return(100.0);
case '௲':
return(1000.0);
default:
switch (ch)
{
case 'ᛮ':
return(17.0);
case 'ᛯ':
return(18.0);
case 'ᛰ':
return(19.0);
default:
switch (ch)
{
case '〸':
return(10.0);
case '〹':
return(20.0);
case '〺':
return(30.0);
default:
if (ch == '፼')
{
return(10000.0);
}
if (ch == '⓾' || ch == '❿' || ch == '➉' || ch == '➓')
{
return(10.0);
}
if (ch == '〇')
{
return(0.0);
}
if ('⓫' <= ch && ch < '⓵')
{
return((double)(ch - 'ⓠ'));
}
if ('〡' <= ch && ch < '〪')
{
return((double)(ch - '〠'));
}
if ('㉑' <= ch && ch < '㉠')
{
return((double)(ch - '㈼'));
}
if ('㊱' <= ch && ch < '㋀')
{
return((double)(ch - '㊍'));
}
if (!char.IsNumber(ch))
{
return(-1.0);
}
if (ch < '༳')
{
return(0.5 + (double)ch - 3882.0);
}
if (ch < '፼')
{
return((double)((ch - '፱') * '\n'));
}
if (ch < '⅙')
{
return(0.2 * (double)(ch - '⅔'));
}
if (ch < 'Ⅼ')
{
return((double)(ch - '⅟'));
}
if (ch < 'ⅼ')
{
return((double)(ch - 'Ⅿ'));
}
if (ch < '⑴')
{
return((double)(ch - ''));
}
if (ch < '⒈')
{
return((double)(ch - '⑳'));
}
if (ch < '⒜')
{
return((double)(ch - '⒇'));
}
if (ch < '㆖')
{
return((double)(ch - '㆑'));
}
if (ch < '㈪')
{
return((double)(ch - ''));
}
if (ch < '㊊')
{
return((double)(ch - '㉿'));
}
return(-1.0);
}
break;
}
break;
}
break;
}
break;
}
break;
case '৹':
return(16.0);
}
break;
}
break;
case '⅙':
return(0.16666666666666666);
case '⅚':
return(0.83333333333333337);
case '⅛':
return(0.125);
case '⅜':
return(0.375);
case '⅝':
return(0.625);
case '⅞':
return(0.875);
case '⅟':
return(1.0);
}
}
