public static StringBuilder AppendNumber(this StringBuilder builder, float number, int decimalCount, AppendNumberOptions options)
{
if (float.IsNaN(number)) return builder.Append("NaN");
if (float.IsNegativeInfinity(number)) return builder.Append("-Infinity");
if (float.IsPositiveInfinity(number)) return builder.Append("+Infinity");
int intNumber = (int) (number * (float) Math.Pow(10, decimalCount) + 0.5f);
return AppendNumberInternal(builder, intNumber, decimalCount, options);
}
static StringBuilder AppendNumberInternal(StringBuilder builder, int number, int decimalCount, AppendNumberOptions options)
{
var numberFormat = CultureInfo.CurrentCulture.NumberFormat;
int index = numberString.Length;
int decimalPos = index - decimalCount;
if (decimalPos == index)
decimalPos = index + 1;
int numberGroupIndex = 0;
int numberGroupCount = numberGroupSizes[numberGroupIndex] + decimalCount;
bool showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
bool showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
bool isNegative = number < 0;
number = Math.Abs(number);
do
{
// decimal point.
if (index == decimalPos)
{
numberString[--index] = numberFormat.NumberDecimalSeparator[0];
}
// digit comma.
if (--numberGroupCount < 0 && showNumberGroup)
{
numberString[--index] = numberFormat.NumberGroupSeparator[0];
if (numberGroupIndex < numberGroupSizes.Length - 1)
numberGroupIndex++;
numberGroupCount = numberGroupSizes[numberGroupIndex++];
}
// number to char.
numberString[--index] = (char) ('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= index);
// append a positive/negative sign.
if (isNegative)
{
numberString[--index] = numberFormat.NegativeSign[0];
}
else if (showPositiveSign)
{
numberString[--index] = numberFormat.PositiveSign[0];
}
// finish.
return builder.Append(numberString, index, numberString.Length - index);
}
static void AppendNumbernternal( StringBuilder builder, int number,
int decimalCount, AppendNumberOptions options)
{
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
int idx = numberString.Length;
int decimalPos = idx - decimalCount;
if ( decimalPos == idx )
decimalPos = idx + 1;
int numberGroupIdx = 0;
int numberGroupCount = numberGroupSizes[numberGroupIdx] + decimalCount;
bool showNumberGroup = ( options & AppendNumberOptions.NumberGroup ) != 0;
bool showPositiveSign = ( options & AppendNumberOptions.PositiveSign ) != 0;
bool isNegative = number < 0;
number = Math.Abs( number );
do
{
if ( idx == decimalPos )
{
numberString[--idx] = nfi.NumberDecimalSeparator[0];
}
if ( --numberGroupCount < 0 && showNumberGroup )
{
numberString[--idx] = nfi.NumberGroupSeparator[0];
if ( numberGroupIdx < numberGroupSizes.Length - 1 )
numberGroupIdx++;
numberGroupCount = numberGroupSizes[numberGroupIdx++];
}
numberString[--idx] = (char)( '0' + ( number % 10 ) );
number /= 10;
} while ( number > 0 || decimalPos <= idx );
if ( isNegative )
{
numberString[--idx] = nfi.NegativeSign[0];
}
else if ( showPositiveSign )
{
numberString[--idx] = nfi.PositiveSign[0];
}
builder.Append( numberString, idx, numberString.Length - idx );
}
/// <summary>
/// Convert float to string and add to string builder.
/// </summary>
public static void AppendNumber(this StringBuilder builder, float number,
int decimalCount, AppendNumberOptions options)
{
// Handle NaN, Infinity cases.
if (float.IsNaN(number))
{
builder.Append("NaN");
}
else if (float.IsNegativeInfinity(number))
{
builder.Append("-Infinity");
}
else if (float.IsPositiveInfinity(number))
{
builder.Append("+Infinity");
}
else
{
int intNumber =
(int)(number * (float)System.Math.Pow(10, decimalCount) + 0.5f);
AppendNumbernternal(builder, intNumber, decimalCount, options);
}
}
public static StringBuilder AppendNumber(this StringBuilder builder, int number, AppendNumberOptions options)
{
return AppendNumberInternal(builder, number, 0, options);
}
public static StringBuilder AppendNumber(this StringBuilder builder, float number, AppendNumberOptions options)
{
return AppendNumber(builder, number, 2, options);
}
static void AppendNumbernternal(StringBuilder builder, int number,
int decimalCount, AppendNumberOptions options)
{
// Initialize varialbes for convertion.
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
int idx = numberString.Length;
int decimalPos = idx - decimalCount;
if (decimalPos == idx)
decimalPos = idx + 1;
int numberGroupIdx = 0;
int numberGroupCount = numberGroupSizes[numberGroupIdx] + decimalCount;
bool showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
bool showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
bool isNegative = number < 0;
number = Math.Abs(number);
// Converting from smallest digit.
do
{
// Add decimal separator ("." in US).
if (idx == decimalPos)
{
numberString[--idx] = nfi.NumberDecimalSeparator[0];
}
// Added number group separator ("," in US).
if (--numberGroupCount < 0 && showNumberGroup)
{
numberString[--idx] = nfi.NumberGroupSeparator[0];
if (numberGroupIdx < numberGroupSizes.Length - 1)
numberGroupIdx++;
numberGroupCount = numberGroupSizes[numberGroupIdx] - 1;
}
// Convert current digit to character and add to buffer.
numberString[--idx] = (char)('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= idx);
// Added sign character if needed.
if (isNegative)
{
numberString[--idx] = nfi.NegativeSign[0];
}
else if (showPositiveSign)
{
numberString[--idx] = nfi.PositiveSign[0];
}
// Added converted string to StringBuilder.
builder.Append(numberString, idx, numberString.Length - idx);
}
/// <summary>
/// Convert integer to string and added to string builder.
/// </summary>
/// <param name="number"></param>
/// <param name="options">Format options</param>
public static void AppendNumber(this StringBuilder builder, int number,
AppendNumberOptions options)
{
AppendNumbernternal(builder, number, 0, options);
}
/// <summary>
/// Convert float to string and added to string builder.
/// </summary>
/// <remarks>It shows 2 decimal digits.</remarks>
public static void AppendNumber(this StringBuilder builder, float number,
AppendNumberOptions options)
{
AppendNumber(builder, number, 2, options);
}
/// <summary>
/// Convert float to string and added to string builder.
/// </summary>
public static void AppendNumber(this StringBuilder builder, float number,
int decimalCount, AppendNumberOptions options)
{
// Handle NaN, Infinity cases.
if (float.IsNaN(number))
{
builder.Append("NaN");
}
else if (float.IsNegativeInfinity(number))
{
builder.Append("-Infinity");
}
else if (float.IsPositiveInfinity(number))
{
builder.Append("+Infinity");
}
else
{
int intNumber =
(int)(number * (float)Math.Pow(10, decimalCount) + 0.5f);
AppendNumbernternal(builder, intNumber, decimalCount, options);
}
}
/// <summary>
/// Convert integer to string and add to string builder.
/// </summary>
/// <param name="number"></param>
/// <param name="options">Format options</param>
public static void AppendNumber(this StringBuilder builder, int number,
AppendNumberOptions options)
{
AppendNumbernternal(builder, number, 0, options);
}
/// <summary>
/// Convert float to string and add to string builder.
/// </summary>
/// <remarks>It shows 2 decimal digits.</remarks>
public static void AppendNumber(this StringBuilder builder, float number,
AppendNumberOptions options)
{
AppendNumber(builder, number, 2, options);
}
static StringBuilder AppendNumberInternal(StringBuilder builder, int number, int decimalCount, AppendNumberOptions options)
{
var numberFormat = CultureInfo.CurrentCulture.NumberFormat;
int index = numberString.Length;
int decimalPos = index - decimalCount;
if (decimalPos == index)
{
decimalPos = index + 1;
}
int numberGroupIndex = 0;
int numberGroupCount = numberGroupSizes[numberGroupIndex] + decimalCount;
bool showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
bool showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
bool isNegative = number < 0;
number = Math.Abs(number);
do
{
// decimal point.
if (index == decimalPos)
{
numberString[--index] = numberFormat.NumberDecimalSeparator[0];
}
// digit comma.
if (--numberGroupCount < 0 && showNumberGroup)
{
numberString[--index] = numberFormat.NumberGroupSeparator[0];
if (numberGroupIndex < numberGroupSizes.Length - 1)
{
numberGroupIndex++;
}
numberGroupCount = numberGroupSizes[numberGroupIndex++];
}
// number to char.
numberString[--index] = (char)('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= index);
// append a positive/negative sign.
if (isNegative)
{
numberString[--index] = numberFormat.NegativeSign[0];
}
else if (showPositiveSign)
{
numberString[--index] = numberFormat.PositiveSign[0];
}
// finish.
return(builder.Append(numberString, index, numberString.Length - index));
}
public static StringBuilder AppendNumber(this StringBuilder builder, float number, int decimalCount, AppendNumberOptions options)
{
if (float.IsNaN(number))
{
return(builder.Append("NaN"));
}
if (float.IsNegativeInfinity(number))
{
return(builder.Append("-Infinity"));
}
if (float.IsPositiveInfinity(number))
{
return(builder.Append("+Infinity"));
}
int intNumber = (int)(number * (float)Math.Pow(10, decimalCount) + 0.5f);
return(AppendNumberInternal(builder, intNumber, decimalCount, options));
}
public static void AppendNumber(this StringBuilder builder, float number, int decimalCount, AppendNumberOptions options)
{
if (builder == null)
throw new ArgumentNullException("builder");
// Handle NaN, Infinity cases.
if (float.IsNaN(number))
{
builder.Append("NaN");
}
else if (float.IsNegativeInfinity(number))
{
builder.Append("-Infinity");
}
else if (float.IsPositiveInfinity(number))
{
builder.Append("+Infinity");
}
else
{
// [FIX, DigitalRune]: The following check was added to catch overflows.
// The original code does not handle the full range of float values. The variable type
// in the following code was changed from int to long to extend the range. However,
// if the value is still out of range, we fall back to the original Append() method (and
// accept some garbage).
try
{
// Convert the float value to a long value. (Checking for possible overflows.)
long longNumber;
checked
{
longNumber = (long)(number * Math.Pow(10, decimalCount) + 0.5);
}
AppendNumberInternal(builder, longNumber, decimalCount, options);
}
catch
{
builder.Append(number);
}
}
}
/// <summary>
/// Convert integer to string and add to string builder.
/// </summary>
/// <param name="builder"></param>
/// <param name="number"></param>
/// <param name="options">Format options</param>
public static StringBuilder AppendNumber(this StringBuilder builder, int number, AppendNumberOptions options)
{
return(AppendNumberInternal(builder, number, 0, options));
}
public static void AppendNumber(this StringBuilder builder, float number, int decimalCount, AppendNumberOptions options)
{
if (builder == null)
{
throw new ArgumentNullException("builder");
}
// Handle NaN, Infinity cases.
if (float.IsNaN(number))
{
builder.Append("NaN");
}
else if (float.IsNegativeInfinity(number))
{
builder.Append("-Infinity");
}
else if (float.IsPositiveInfinity(number))
{
builder.Append("+Infinity");
}
else
{
// [FIX, DigitalRune]: The following check was added to catch overflows.
// The original code does not handle the full range of float values. The variable type
// in the following code was changed from int to long to extend the range. However,
// if the value is still out of range, we fall back to the original Append() method (and
// accept some garbage).
try
{
// Convert the float value to a long value. (Checking for possible overflows.)
long longNumber;
checked
{
longNumber = (long)(number * Math.Pow(10, decimalCount) + 0.5);
}
AppendNumberInternal(builder, longNumber, decimalCount, options);
}
catch
{
builder.Append(number);
}
}
}
static StringBuilder AppendNumberInternal(StringBuilder builder, int number, int decimalCount, AppendNumberOptions options)
{
var nfi = CultureInfo.CurrentCulture.NumberFormat;
var idx = NumberString.Length;
var decimalPos = idx - decimalCount;
if (decimalPos == idx)
{
decimalPos = idx + 1;
}
var numberGroupIdx = 0;
var numberGroupCount = NumberGroupSizes[numberGroupIdx] + decimalCount;
var showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
var showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
var isNegative = number < 0;
if (number > int.MinValue)
{
number = Math.Abs(number);
}
// Converting from smallest digit.
do
{
// Add decimal separator ("." in US).
if (idx == decimalPos)
{
NumberString[--idx] = nfi.NumberDecimalSeparator[0];
}
// Added number group separator ("," in US).
if (--numberGroupCount < 0 && showNumberGroup)
{
NumberString[--idx] = nfi.NumberGroupSeparator[0];
if (numberGroupIdx < NumberGroupSizes.Length - 1)
{
numberGroupIdx++;
}
numberGroupCount = NumberGroupSizes[numberGroupIdx] - 1;
}
// Convert current digit to character and add to buffer.
NumberString[--idx] = (char)('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= idx);
// Added sign character if needed.
if (isNegative)
{
NumberString[--idx] = nfi.NegativeSign[0];
}
else if (showPositiveSign)
{
NumberString[--idx] = nfi.PositiveSign[0];
}
// Added converted string to StringBuilder.
builder.Append(NumberString, idx, NumberString.Length - idx);
return(builder);
}
/// <summary>
/// Convert float to string and add to string builder.
/// </summary>
/// <remarks>It shows 2 decimal digits.</remarks>
public static StringBuilder AppendNumber(this StringBuilder builder, float number, AppendNumberOptions options)
{
return(AppendNumber(builder, number, 2, options));
}
static void AppendNumbernternal(StringBuilder builder, int number,
int decimalCount, AppendNumberOptions options)
{
// Initialize variables for conversion.
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
int idx = numberString.Length;
int decimalPos = idx - decimalCount;
if (decimalPos == idx)
{
decimalPos = idx + 1;
}
int numberGroupIdx = 0;
int numberGroupCount = numberGroupSizes[numberGroupIdx] + decimalCount;
bool showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
bool showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
bool isNegative = number < 0;
number = System.Math.Abs(number);
// Converting from smallest digit.
do
{
// Add decimal separator ("." in US).
if (idx == decimalPos)
{
numberString[--idx] = nfi.NumberDecimalSeparator[0];
}
// Added number group separator ("," in US).
if (--numberGroupCount < 0 && showNumberGroup)
{
numberString[--idx] = nfi.NumberGroupSeparator[0];
if (numberGroupIdx < numberGroupSizes.Length - 1)
{
numberGroupIdx++;
}
numberGroupCount = numberGroupSizes[numberGroupIdx] - 1;
}
// Convert current digit to character and add to buffer.
numberString[--idx] = (char)('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= idx);
// Added sign character if needed.
if (isNegative)
{
numberString[--idx] = nfi.NegativeSign[0];
}
else if (showPositiveSign)
{
numberString[--idx] = nfi.PositiveSign[0];
}
// Added converted string to StringBuilder.
builder.Append(numberString, idx, numberString.Length - idx);
}
static void AppendNumbernternal(StringBuilder builder, int number, int decimalCount, AppendNumberOptions options)
{
// 変換に必要な変数の初期化
NumberFormatInfo nfi = CultureInfo.CurrentCulture.NumberFormat;
int idx = numberString.Length;
int decimalPos = idx - decimalCount;
if (decimalPos == idx)
decimalPos = idx + 1;
int numberGroupIdx = 0;
int numberGroupCount = numberGroupSizes[numberGroupIdx] + decimalCount;
bool showNumberGroup = (options & AppendNumberOptions.NumberGroup) != 0;
bool showPositiveSign = (options & AppendNumberOptions.PositiveSign) != 0;
bool isNegative = number < 0;
number = Math.Abs(number);
// 最小桁から各桁を文字に変換する
do
{
// 小数点の区切り文字(日本では".")の追加
if (idx == decimalPos)
{
numberString[--idx] = nfi.NumberDecimalSeparator[0];
}
// 桁グループ区切り文字(日本では",")の追加
if (--numberGroupCount < 0 && showNumberGroup)
{
numberString[--idx] = nfi.NumberGroupSeparator[0];
if (numberGroupIdx < numberGroupSizes.Length - 1)
numberGroupIdx++;
numberGroupCount = numberGroupSizes[numberGroupIdx++];
}
// 現在の桁を文字に変換してバッファに追加
numberString[--idx] = (char) ('0' + (number % 10));
number /= 10;
} while (number > 0 || decimalPos <= idx);
// 符号文字を必要なら追加する
if (isNegative)
{
numberString[--idx] = nfi.NegativeSign[0];
}
else if (showPositiveSign)
{
numberString[--idx] = nfi.PositiveSign[0];
}
// 変換結果をStringBuilderに追加する
builder.Append(numberString, idx, numberString.Length - idx);
}
