/// <summary>
/// Breaks apart an event key into the individual and normalized key and
/// any modifiers.
/// </summary>
/// <param name="evt">The evt.</param>
/// <param name="key">The key.</param>
/// <param name="modifiers">The mod.</param>
public static void DecomposeKeys(
EventKey evt,
out Key key,
out ModifierType modifiers)
{
// Use the keymap to decompose various elements of the hardware keys.
uint keyval;
int effectiveGroup,
level;
ModifierType consumedModifiers;
keymap.TranslateKeyboardState(
evt.HardwareKeycode,
evt.State,
evt.Group,
out keyval,
out effectiveGroup,
out level,
out consumedModifiers);
// Break out the identified keys and modifiers.
key = (Key)keyval;
modifiers = evt.State & ~consumedModifiers;
// Normalize some of the keys that don't make sense.
if (key == Key.ISO_Left_Tab)
{
key = Key.Tab;
modifiers |= ModifierType.ShiftMask;
}
// Check to see if we are a character and pull out the shift key if
// it is a capital letter. This is used to normalize so all the
// keys are uppercase with a shift modifier.
bool shiftWasConsumed = ((evt.State ^ modifiers) & ModifierType.ShiftMask)
!= 0;
var unicode = (char)Keyval.ToUnicode((uint)key);
if (shiftWasConsumed && Char.IsUpper(unicode))
{
modifiers |= ModifierType.ShiftMask;
}
if (Char.IsLetter(unicode) &&
Char.IsLower(unicode))
{
key = (Key)Char.ToUpper(unicode);
}
}
internal static bool Parse(string s, NumberStyles style, IFormatProvider fp, bool tryParse, out int result, out Exception exc)
{
result = 0;
exc = null;
if (s == null)
{
if (!tryParse)
{
exc = new ArgumentNullException("s");
}
return(false);
}
if (s.Length == 0)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
NumberFormatInfo nfi = null;
if (fp != null)
{
Type typeNFI = typeof(System.Globalization.NumberFormatInfo);
nfi = (NumberFormatInfo)fp.GetFormat(typeNFI);
}
if (nfi == null)
{
nfi = Thread.CurrentThread.CurrentCulture.NumberFormat;
}
if (!CheckStyle(style, tryParse, ref exc))
{
return(false);
}
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
bool AllowExponent = (style & NumberStyles.AllowExponent) != 0;
int pos = 0;
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
bool foundOpenParentheses = false;
bool negative = false;
bool foundSign = false;
bool foundCurrency = false;
// Pre-number stuff
if (AllowParentheses && s [pos] == '(')
{
foundOpenParentheses = true;
foundSign = true;
negative = true; // MS always make the number negative when there parentheses
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
pos++;
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (s.Substring(pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (s.Substring(pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
}
if (AllowLeadingSign && !foundSign)
{
// Sign + Currency
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
FindCurrency(ref pos, s, nfi,
ref foundCurrency);
if (foundCurrency && AllowLeadingWhite &&
!JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (foundCurrency)
{
if (!foundSign && AllowLeadingSign)
{
FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
if (foundSign && AllowLeadingWhite &&
!JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
}
int number = 0;
int nDigits = 0;
int decimalPointPos = -1;
int digitValue;
char hexDigit;
// Number stuff
while (pos < s.Length)
{
if (!ValidDigit(s [pos], AllowHexSpecifier))
{
if (AllowThousands &&
(FindOther(ref pos, s, nfi.NumberGroupSeparator) ||
FindOther(ref pos, s, nfi.CurrencyGroupSeparator)))
{
continue;
}
if (AllowDecimalPoint && decimalPointPos < 0 &&
(FindOther(ref pos, s, nfi.NumberDecimalSeparator) ||
FindOther(ref pos, s, nfi.CurrencyDecimalSeparator)))
{
decimalPointPos = nDigits;
continue;
}
break;
}
nDigits++;
if (AllowHexSpecifier)
{
hexDigit = s [pos++];
if (Char.IsDigit(hexDigit))
{
digitValue = (int)(hexDigit - '0');
}
else if (Char.IsLower(hexDigit))
{
digitValue = (int)(hexDigit - 'a' + 10);
}
else
{
digitValue = (int)(hexDigit - 'A' + 10);
}
uint unumber = (uint)number;
if (tryParse)
{
if ((unumber & 0xf0000000) != 0)
{
return(false);
}
number = (int)(unumber * 16u + (uint)digitValue);
}
else
{
number = (int)checked (unumber * 16u + (uint)digitValue);
}
continue;
}
try {
// Calculations done as negative
// (abs (MinValue) > abs (MaxValue))
number = checked (number * 10 - (int)(s [pos++] - '0'));
} catch (OverflowException) {
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
}
// Post number stuff
if (nDigits == 0)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
int exponent = 0;
if (AllowExponent)
{
if (FindExponent(ref pos, s, ref exponent, tryParse, ref exc) && exc != null)
{
return(false);
}
}
if (AllowTrailingSign && !foundSign)
{
// Sign + Currency
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign && pos < s.Length)
{
if (AllowTrailingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
if (AllowTrailingWhite && pos < s.Length && !JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
// Currency + sign
FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency && pos < s.Length)
{
if (AllowTrailingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (!foundSign && AllowTrailingSign)
{
FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
}
}
}
if (AllowTrailingWhite && pos < s.Length && !JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
if (foundOpenParentheses)
{
if (pos >= s.Length || s [pos++] != ')')
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (AllowTrailingWhite && pos < s.Length && !JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
}
if (pos < s.Length && s [pos] != '\u0000')
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (!negative && !AllowHexSpecifier)
{
if (tryParse)
{
long lval = -((long)number);
if (lval < MinValue || lval > MaxValue)
{
return(false);
}
number = (int)lval;
}
else
{
number = checked (-number);
}
}
if (decimalPointPos >= 0)
{
exponent = exponent - nDigits + decimalPointPos;
}
if (exponent < 0)
{
//
// Any non-zero values after decimal point are not allowed
//
int remainder;
number = Math.DivRem(number, (int)Math.Pow(10, -exponent), out remainder);
if (remainder != 0)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
}
else if (exponent > 0)
{
//
// result *= 10^exponent
//
// Reduce the risk of throwing an overflow exc
//
double res = checked (Math.Pow(10, exponent) * number);
if (res < MinValue || res > MaxValue)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
number = (int)res;
}
result = number;
return(true);
}
internal static bool Parse(string s, NumberStyles style, IFormatProvider provider, bool tryParse, out uint result, out Exception exc)
{
result = 0;
exc = null;
if (s == null)
{
if (!tryParse)
{
exc = new ArgumentNullException("s");
}
return(false);
}
if (s.Length == 0)
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
NumberFormatInfo nfi = null;
if (provider != null)
{
Type typeNFI = typeof(NumberFormatInfo);
nfi = (NumberFormatInfo)provider.GetFormat(typeNFI);
}
if (nfi == null)
{
nfi = Thread.CurrentThread.CurrentCulture.NumberFormat;
}
if (!Int32.CheckStyle(style, tryParse, ref exc))
{
return(false);
}
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
bool AllowExponent = (style & NumberStyles.AllowExponent) != 0;
int pos = 0;
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
bool foundOpenParentheses = false;
bool negative = false;
bool foundSign = false;
bool foundCurrency = false;
// Pre-number stuff
if (AllowParentheses && s [pos] == '(')
{
foundOpenParentheses = true;
foundSign = true;
negative = true; // MS always make the number negative when there parentheses
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
pos++;
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (s.Substring(pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
if (s.Substring(pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
}
if (AllowLeadingSign && !foundSign)
{
// Sign + Currency
Int32.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
Int32.FindCurrency(ref pos, s, nfi,
ref foundCurrency);
if (foundCurrency && AllowLeadingWhite &&
!Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
Int32.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (foundCurrency)
{
if (!foundSign && AllowLeadingSign)
{
Int32.FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
if (foundSign && AllowLeadingWhite &&
!Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
}
uint number = 0;
int nDigits = 0;
int decimalPointPos = -1;
uint digitValue;
char hexDigit;
// Number stuff
// Just the same as Int32, but this one adds instead of substract
do
{
if (!Int32.ValidDigit(s [pos], AllowHexSpecifier))
{
if (AllowThousands &&
(Int32.FindOther(ref pos, s, nfi.NumberGroupSeparator) ||
Int32.FindOther(ref pos, s, nfi.CurrencyGroupSeparator)))
{
continue;
}
if (AllowDecimalPoint && decimalPointPos < 0 &&
(Int32.FindOther(ref pos, s, nfi.NumberDecimalSeparator) ||
Int32.FindOther(ref pos, s, nfi.CurrencyDecimalSeparator)))
{
decimalPointPos = nDigits;
continue;
}
break;
}
nDigits++;
if (AllowHexSpecifier)
{
hexDigit = s [pos++];
if (Char.IsDigit(hexDigit))
{
digitValue = (uint)(hexDigit - '0');
}
else if (Char.IsLower(hexDigit))
{
digitValue = (uint)(hexDigit - 'a' + 10);
}
else
{
digitValue = (uint)(hexDigit - 'A' + 10);
}
if (tryParse)
{
ulong l = number * 16 + digitValue;
if (l > MaxValue)
{
return(false);
}
number = (uint)l;
}
else
{
number = checked (number * 16 + digitValue);
}
continue;
}
try {
number = checked (number * 10 + (uint)(s [pos++] - '0'));
} catch (OverflowException) {
if (!tryParse)
{
exc = new OverflowException(Locale.GetText("Value too large or too small."));
}
return(false);
}
} while (pos < s.Length);
// Post number stuff
if (nDigits == 0)
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
int exponent = 0;
if (AllowExponent)
{
if (Int32.FindExponent(ref pos, s, ref exponent, tryParse, ref exc) && exc != null)
{
return(false);
}
}
if (AllowTrailingSign && !foundSign)
{
// Sign + Currency
Int32.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign && pos < s.Length)
{
if (AllowTrailingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
// Currency + sign
Int32.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency && pos < s.Length)
{
if (AllowTrailingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (!foundSign && AllowTrailingSign)
{
Int32.FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
}
}
}
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
if (foundOpenParentheses)
{
if (pos >= s.Length || s [pos++] != ')')
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
}
if (pos < s.Length && s [pos] != '\u0000')
{
if (!tryParse)
{
exc = Int32.GetFormatException();
}
return(false);
}
// -0 is legal but other negative values are not
if (negative && (number > 0))
{
if (!tryParse)
{
exc = new OverflowException(
Locale.GetText("Negative number"));
}
return(false);
}
if (decimalPointPos >= 0)
{
exponent = exponent - nDigits + decimalPointPos;
}
if (exponent < 0)
{
//
// Any non-zero values after decimal point are not allowed
//
long remainder;
number = (uint)Math.DivRem(number, (int)Math.Pow(10, -exponent), out remainder);
if (remainder != 0)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
}
else if (exponent > 0)
{
//
// result *= 10^exponent
//
// Reduce the risk of throwing an overflow exc
//
double res = checked (Math.Pow(10, exponent) * number);
if (res < MinValue || res > MaxValue)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
number = (uint)res;
}
result = number;
return(true);
}
/// <summary> /// Indicates whether the specified Unicode character is categorized as a lowercase letter. /// </summary> /// <param name="Char">The Unicode character to evaluate.</param> /// <returns>true if <paramref name="Char"/> is a lowercase letter; otherwise, false.</returns> public static Boolean IsLower(this Char Char) => Char.IsLower(Char);
internal static bool Parse(string s, NumberStyles style, IFormatProvider fp, bool tryParse, out int result, out Exception exc)
{
result = 0;
exc = null;
if (s == null)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (s == null)
{
if (!tryParse)
{
exc = new ArgumentNullException();
}
return(false);
}
if (s.Length == 0)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
NumberFormatInfo nfi;
if (fp != null)
{
Type typeNFI = typeof(System.Globalization.NumberFormatInfo);
nfi = (NumberFormatInfo)fp.GetFormat(typeNFI);
}
else
{
nfi = CultureInfo.CurrentCulture.NumberFormat;
}
if (!CheckStyle(style, tryParse, ref exc))
{
return(false);
}
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
bool AllowExponent = (style & NumberStyles.AllowExponent) != 0;
int pos = 0;
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
bool foundOpenParentheses = false;
bool negative = false;
bool foundSign = false;
bool foundCurrency = false;
// Pre-number stuff
if (AllowParentheses && s[pos] == '(')
{
foundOpenParentheses = true;
foundSign = true;
negative = true; // MS always make the number negative when there parentheses
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
pos++;
if (AllowLeadingWhite && !!JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (s.Substring(pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (s.Substring(pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
}
if (AllowLeadingSign && !foundSign)
{
// Sign + Currency
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency && AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (foundCurrency)
{
if (!foundSign && AllowLeadingSign)
{
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign && AllowLeadingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
}
int number = 0;
int nDigits = 0;
bool decimalPointFound = false;
int digitValue;
char hexDigit;
// Number stuff
do
{
if (!ValidDigit(s[pos], AllowHexSpecifier))
{
if (AllowThousands && FindOther(ref pos, s, nfi.NumberGroupSeparator))
{
continue;
}
else
{
if (!decimalPointFound && AllowDecimalPoint && FindOther(ref pos, s, nfi.NumberDecimalSeparator))
{
decimalPointFound = true;
continue;
}
}
break;
}
else if (AllowHexSpecifier)
{
nDigits++;
hexDigit = s[pos++];
if (Char.IsDigit(hexDigit))
{
digitValue = (int)(hexDigit - '0');
}
else if (Char.IsLower(hexDigit))
{
digitValue = (int)(hexDigit - 'a' + 10);
}
else
{
digitValue = (int)(hexDigit - 'A' + 10);
}
uint unumber = (uint)number;
try
{
number = (int)checked (unumber * 16u + (uint)digitValue);
}
catch (OverflowException e)
{
exc = e;
return(false);
}
}
else if (decimalPointFound)
{
nDigits++;
// Allows decimal point as long as it's only
// followed by zeroes.
if (s[pos++] != '0')
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
}
else
{
nDigits++;
try
{
// Calculations done as negative
// (abs (MinValue) > abs (MaxValue))
number = checked (
number * 10 -
(int)(s[pos++] - '0')
);
}
catch (OverflowException)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too small.");
}
return(false);
}
}
} while (pos < s.Length);
// Post number stuff
if (nDigits == 0)
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (AllowExponent)
{
FindExponent(ref pos, s);
}
if (AllowTrailingSign && !foundSign)
{
// Sign + Currency
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowTrailingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
FindCurrency(ref pos, s, nfi, ref foundCurrency);
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowTrailingWhite && !JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (!foundSign && AllowTrailingSign)
{
FindSign(ref pos, s, nfi, ref foundSign, ref negative);
}
}
}
if (AllowTrailingWhite && pos < s.Length && !JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
if (foundOpenParentheses)
{
if (pos >= s.Length || s[pos++] != ')')
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (AllowTrailingWhite && pos < s.Length && !JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
}
if (pos < s.Length && s[pos] != '\u0000')
{
if (!tryParse)
{
exc = GetFormatException();
}
return(false);
}
if (!negative && !AllowHexSpecifier)
{
number = checked (-number);
}
result = number;
return(true);
}
internal static bool Parse(string s, NumberStyles style, IFormatProvider fp, bool tryParse, out long result, out Exception exc)
{
result = 0;
exc = null;
if (s == null)
{
if (!tryParse)
{
exc = new ArgumentNullException("s");
}
return(false);
}
if (s.Length == 0)
{
if (!tryParse)
{
exc = new FormatException("Input string was not " +
"in the correct format: s.Length==0.");
}
return(false);
}
NumberFormatInfo nfi;
if (fp != null)
{
Type typeNFI = typeof(System.Globalization.NumberFormatInfo);
nfi = (NumberFormatInfo)fp.GetFormat(typeNFI);
}
else
{
nfi = CultureInfo.CurrentCulture.NumberFormat;
}
if (!Int32.CheckStyle(style, tryParse, ref exc))
{
return(false);
}
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
int pos = 0;
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
bool foundOpenParentheses = false;
bool negative = false;
bool foundSign = false;
bool foundCurrency = false;
// Pre-number stuff
if (AllowParentheses && s[pos] == '(')
{
foundOpenParentheses = true;
foundSign = true;
negative = true; // MS always make the number negative when there parentheses
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
pos++;
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (s.Substring(pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
{
if (!tryParse)
{
exc = new FormatException("Input string was not in the correct " +
"format: Has Negative Sign.");
}
return(false);
}
if (s.Substring(pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
{
if (!tryParse)
{
exc = new FormatException("Input string was not in the correct " +
"format: Has Positive Sign.");
}
return(false);
}
}
if (AllowLeadingSign && !foundSign)
{
// Sign + Currency
Int32.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
Int32.FindCurrency(ref pos, s, nfi,
ref foundCurrency);
if (foundCurrency && AllowLeadingWhite &&
!Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
Int32.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowLeadingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (foundCurrency)
{
if (!foundSign && AllowLeadingSign)
{
Int32.FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
if (foundSign && AllowLeadingWhite &&
!Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
}
long number = 0;
int nDigits = 0;
bool decimalPointFound = false;
int digitValue;
char hexDigit;
// Number stuff
do
{
if (!Int32.ValidDigit(s[pos], AllowHexSpecifier))
{
if (AllowThousands &&
(Int32.FindOther(ref pos, s, nfi.NumberGroupSeparator) ||
Int32.FindOther(ref pos, s, nfi.CurrencyGroupSeparator)))
{
continue;
}
else
if (!decimalPointFound && AllowDecimalPoint &&
(Int32.FindOther(ref pos, s, nfi.NumberDecimalSeparator) ||
Int32.FindOther(ref pos, s, nfi.CurrencyDecimalSeparator)))
{
decimalPointFound = true;
continue;
}
break;
}
else if (AllowHexSpecifier)
{
nDigits++;
hexDigit = s[pos++];
if (Char.IsDigit(hexDigit))
{
digitValue = (int)(hexDigit - '0');
}
else if (Char.IsLower(hexDigit))
{
digitValue = (int)(hexDigit - 'a' + 10);
}
else
{
digitValue = (int)(hexDigit - 'A' + 10);
}
ulong unumber = (ulong)number;
// IMPROVME: We could avoid catching OverflowException
try
{
number = (long)checked (unumber * 16ul + (ulong)digitValue);
}
catch (OverflowException e)
{
if (!tryParse)
{
exc = e;
}
return(false);
}
}
else if (decimalPointFound)
{
nDigits++;
// Allows decimal point as long as it's only
// followed by zeroes.
if (s[pos++] != '0')
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too " +
"small.");
}
return(false);
}
}
else
{
nDigits++;
try
{
// Calculations done as negative
// (abs (MinValue) > abs (MaxValue))
number = checked (
number * 10 -
(long)(s[pos++] - '0')
);
}
catch (OverflowException)
{
if (!tryParse)
{
exc = new OverflowException("Value too large or too " +
"small.");
}
return(false);
}
}
} while (pos < s.Length);
// Post number stuff
if (nDigits == 0)
{
if (!tryParse)
{
exc = new FormatException("Input string was not in the correct format: nDigits == 0.");
}
return(false);
}
if (AllowTrailingSign && !foundSign)
{
// Sign + Currency
Int32.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowTrailingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
Int32.FindCurrency(ref pos, s, nfi,
ref foundCurrency);
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
if (nfi.CurrencyPositivePattern == 3 && s[pos++] != ' ')
{
if (tryParse)
{
return(false);
}
else
{
throw new FormatException("Input string was not in the correct format: no space between number and currency symbol.");
}
}
Int32.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency && pos < s.Length)
{
if (AllowTrailingWhite && !Int32.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (!foundSign && AllowTrailingSign)
{
Int32.FindSign(ref pos, s, nfi, ref foundSign,
ref negative);
}
}
}
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
if (foundOpenParentheses)
{
if (pos >= s.Length || s[pos++] != ')')
{
if (!tryParse)
{
exc = new FormatException("Input string was not in the correct " +
"format: No room for close parens.");
}
return(false);
}
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
}
if (pos < s.Length && s[pos] != '\u0000')
{
if (!tryParse)
{
exc = new FormatException("Input string was not in the correct format: Did not parse entire string. pos = "
+ pos + " s.Length = " + s.Length);
}
return(false);
}
if (!negative && !AllowHexSpecifier)
{
try
{
number = checked (-number);
}
catch (OverflowException e)
{
if (!tryParse)
{
exc = e;
}
return(false);
}
}
result = number;
return(true);
}
/// <summary>
/// Spacifies a string value by adding a separator (usually space) between words
/// </summary>
/// <param name="value">The string value to spacify</param>
/// <param name="separator">The separator value to use, default is a space</param>
/// <returns>The spacified string value</returns>
public static string Spacify(this string value, string separator = " ")
{
if (String.IsNullOrEmpty(value) || value.Contains(separator))
{
return(value);
}
else
{
var result = String.Empty;
var previousChar = '\0';
foreach (var currentChar in value)
{
if (previousChar != Char.MinValue && Char.IsLetter(currentChar))
{
if ((Char.IsNumber(previousChar) && !Char.IsNumber(currentChar)) || (Char.IsUpper(currentChar) && Char.IsLower(previousChar)))
{
result += separator + Convert.ToString(currentChar);
}
else
{
result += Convert.ToString(currentChar);
}
}
else
{
result += Convert.ToString(currentChar);
}
previousChar = currentChar;
}
if (false == String.IsNullOrEmpty(result))
{
result = result.Replace("_", separator).Replace(" ", " ");
}
return(result);
}
}
internal static bool Parse(string s, NumberStyles style, IFormatProvider provider, bool tryParse, out uint result, out Exception exc)
{
result = 0;
exc = null;
if (s == null)
{
if (!tryParse)
{
exc = new ArgumentNullException("s");
}
return(false);
}
if (s.Length == 0)
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
NumberFormatInfo nfi = null;
if (provider != null)
{
Type typeNFI = typeof(NumberFormatInfo);
nfi = (NumberFormatInfo)provider.GetFormat(typeNFI);
}
if (nfi == null)
{
nfi = Thread.CurrentThread.CurrentCulture.NumberFormat;
}
if (!ParseHelper.CheckStyle(style, tryParse, ref exc))
{
return(false);
}
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
int pos = 0;
if (AllowLeadingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
bool foundOpenParentheses = false;
bool negative = false;
bool foundSign = false;
bool foundCurrency = false;
// Pre-number stuff
if (AllowParentheses && s[pos] == '(')
{
foundOpenParentheses = true;
foundSign = true;
negative = true; // MS always make the number negative when there parentheses
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
pos++;
if (AllowLeadingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (s.Substring(pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
if (s.Substring(pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
}
if (AllowLeadingSign && !foundSign)
{
// Sign + Currency
ParseHelper.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowLeadingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
ParseHelper.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency && AllowLeadingWhite &&
!ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
ParseHelper.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowLeadingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (foundCurrency)
{
if (!foundSign && AllowLeadingSign)
{
ParseHelper.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign && AllowLeadingWhite &&
!ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
}
}
}
}
uint number = 0;
int nDigits = 0;
bool decimalPointFound = false;
uint digitValue;
char hexDigit;
// Number stuff
// Just the same as Int32, but this one adds instead of substract
do
{
if (!ParseHelper.ValidDigit(s[pos], AllowHexSpecifier))
{
if (AllowThousands && ParseHelper.FindOther(ref pos, s, nfi.NumberGroupSeparator))
{
continue;
}
else
if (!decimalPointFound && AllowDecimalPoint &&
ParseHelper.FindOther(ref pos, s, nfi.NumberDecimalSeparator))
{
decimalPointFound = true;
continue;
}
break;
}
else if (AllowHexSpecifier)
{
nDigits++;
hexDigit = s[pos++];
if (Char.IsDigit(hexDigit))
{
digitValue = (uint)(hexDigit - '0');
}
else if (Char.IsLower(hexDigit))
{
digitValue = (uint)(hexDigit - 'a' + 10);
}
else
{
digitValue = (uint)(hexDigit - 'A' + 10);
}
if (tryParse)
{
ulong l = number * 16 + digitValue;
if (l > MaxValue)
{
return(false);
}
number = (uint)l;
}
else
{
number = checked (number * 16 + digitValue);
}
}
else if (decimalPointFound)
{
nDigits++;
// Allows decimal point as long as it's only
// followed by zeroes.
if (s[pos++] != '0')
{
if (!tryParse)
{
exc = new OverflowException(String.Format("Value too large or too small."));
}
return(false);
}
}
else
{
nDigits++;
try
{
number = checked (number * 10 + (uint)(s[pos++] - '0'));
}
catch (OverflowException)
{
if (!tryParse)
{
exc = new OverflowException(String.Format("Value too large or too small."));
}
return(false);
}
}
} while (pos < s.Length);
// Post number stuff
if (nDigits == 0)
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
if (AllowTrailingSign && !foundSign)
{
// Sign + Currency
ParseHelper.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
if (foundSign)
{
if (AllowTrailingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (AllowCurrencySymbol)
{
ParseHelper.FindCurrency(ref pos, s, nfi, ref foundCurrency);
}
}
}
if (AllowCurrencySymbol && !foundCurrency)
{
// Currency + sign
ParseHelper.FindCurrency(ref pos, s, nfi, ref foundCurrency);
if (foundCurrency)
{
if (AllowTrailingWhite && !ParseHelper.JumpOverWhite(ref pos, s, true, tryParse, ref exc))
{
return(false);
}
if (!foundSign && AllowTrailingSign)
{
ParseHelper.FindSign(ref pos, s, nfi, ref foundSign, ref negative);
}
}
}
if (AllowTrailingWhite && pos < s.Length && !ParseHelper.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
if (foundOpenParentheses)
{
if (pos >= s.Length || s[pos++] != ')')
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
if (AllowTrailingWhite && pos < s.Length && !ParseHelper.JumpOverWhite(ref pos, s, false, tryParse, ref exc))
{
return(false);
}
}
if (pos < s.Length && s[pos] != '\u0000')
{
if (!tryParse)
{
exc = ParseHelper.GetFormatException();
}
return(false);
}
// -0 is legal but other negative values are not
if (negative && (number > 0))
{
if (!tryParse)
{
exc = new OverflowException(
String.Format("Negative number"));
}
return(false);
}
result = number;
return(true);
}
