Wed Sep 11 15:26:34 CEST 2002 Paolo Molaro <lupus@ximian.com>
[mono.git] / mcs / class / corlib / System / UInt32.cs
index 33a014d731ac08d79885a402396bb3ef9fad5c27..aa409a9288013e327b3b7ada699ad308d7d04114 100644 (file)
@@ -8,17 +8,18 @@
 //
 
 using System.Globalization;
+using System.Threading;
 
 namespace System {
 
        [CLSCompliant(false)]
-       public struct UInt32 : IComparable, IFormattable { //, IConvertible {
-               public static Type Type = typeof (uint);
+       [Serializable]
+       public struct UInt32 : IComparable, IFormattable, IConvertible {
 
                public const uint MaxValue = 0xffffffff;
                public const uint MinValue = 0;
                
-               public uint value;
+               internal uint value;
 
                public int CompareTo (object v)
                {
@@ -50,12 +51,14 @@ namespace System {
                        return (int) value;
                }
 
+               [CLSCompliant(false)]
                public static uint Parse (string s)
                {
                        uint val = 0;
                        int len;
                        int i;
                        bool digits_seen = false;
+                       bool has_negative_sign = false;
                        
                        if (s == null)
                                throw new ArgumentNullException (Locale.GetText ("s is null"));
@@ -74,6 +77,11 @@ namespace System {
 
                        if (s [i] == '+')
                                i++;
+                       else
+                               if (s[i] == '-'){
+                                       i++;
+                                       has_negative_sign = true;
+                               }
 
                        for (; i < len; i++){
                                c = s [i];
@@ -97,35 +105,224 @@ namespace System {
                        if (!digits_seen)
                                throw new FormatException ();
                        
-                       return val;
+                       if (has_negative_sign)
+                               throw new OverflowException ();
 
+                       return val;
                }
 
+               [CLSCompliant(false)]
                public static uint Parse (string s, IFormatProvider fp)
                {
                        return Parse (s, NumberStyles.Integer, fp);
                }
 
+               [CLSCompliant(false)]
                public static uint Parse (string s, NumberStyles style)
                {
                        return Parse (s, style, null);
                }
 
-               //[MonoTODO]
+               [CLSCompliant(false)]
                public static uint Parse (string s, NumberStyles style, IFormatProvider fp)
                {
-                       // TODO: Implement me
-                       throw new NotImplementedException ();
+                       if (s == null)
+                               throw new ArgumentNullException ();
+
+                       if (s.Length == 0)
+                               throw new FormatException ("Input string was not in the correct format.");
+
+                       NumberFormatInfo nfi;
+                       if (fp != null) {
+                               Type typeNFI = typeof (System.Globalization.NumberFormatInfo);
+                               nfi = (NumberFormatInfo) fp.GetFormat (typeNFI);
+                       }
+                       else
+                               nfi = Thread.CurrentThread.CurrentCulture.NumberFormat;
+
+                       Int32.CheckStyle (style);
+
+                       bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
+                       bool AllowExponent = (style & NumberStyles.AllowExponent) != 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)
+                               pos = Int32.JumpOverWhite (pos, s, true);
+
+                       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)
+                                       pos = Int32.JumpOverWhite (pos, s, true);
+
+                               if (s.Substring (pos, nfi.NegativeSign.Length) == nfi.NegativeSign)
+                                       throw new FormatException ("Input string was not in the correct format.");
+                               if (s.Substring (pos, nfi.PositiveSign.Length) == nfi.PositiveSign)
+                                       throw new FormatException ("Input string was not in the correct format.");
+                       }
+
+                       if (AllowLeadingSign && !foundSign) {
+                               // Sign + Currency
+                               Int32.FindSign (ref pos, s, nfi, ref foundSign, ref negative);
+                               if (foundSign) {
+                                       if (AllowLeadingWhite)
+                                               pos = Int32.JumpOverWhite (pos, s, true);
+                                       if (AllowCurrencySymbol) {
+                                               Int32.FindCurrency (ref pos, s, nfi,
+                                                                   ref foundCurrency);
+                                               if (foundCurrency && AllowLeadingWhite)
+                                                       pos = Int32.JumpOverWhite (pos, s, true);
+                                       }
+                               }
+                       }
+                       
+                       if (AllowCurrencySymbol && !foundCurrency) {
+                               // Currency + sign
+                               Int32.FindCurrency (ref pos, s, nfi, ref foundCurrency);
+                               if (foundCurrency) {
+                                       if (AllowLeadingWhite)
+                                               pos = Int32.JumpOverWhite (pos, s, true);
+                                       if (foundCurrency) {
+                                               if (!foundSign && AllowLeadingSign) {
+                                                       Int32.FindSign (ref pos, s, nfi, ref foundSign,
+                                                                       ref negative);
+                                                       if (foundSign && AllowLeadingWhite)
+                                                               pos = Int32.JumpOverWhite (pos, s, true);
+                                               }
+                                       }
+                               }
+                       }
+                       
+                       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 (!Int32.ValidDigit (s [pos], AllowHexSpecifier)) {
+                                       if (AllowThousands &&
+                                           Int32.FindOther (ref pos, s, nfi.NumberGroupSeparator))
+                                           continue;
+                                       else
+                                       if (!decimalPointFound && AllowDecimalPoint &&
+                                           Int32.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);
+
+                                       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')
+                                               throw new OverflowException ("Value too large or too small.");
+                               }
+                               else {
+                                       nDigits++;
+
+                                       try {
+                                               number = checked (
+                                                       number * 10 + 
+                                                       (uint) (s [pos++] - '0')
+                                                       );
+                                       } catch (OverflowException) {
+                                               throw new OverflowException ("Value too large or too small.");
+                                       }
+                               }
+                       } while (pos < s.Length);
+
+                       // Post number stuff
+                       if (nDigits == 0)
+                               throw new FormatException ("Input string was not in the correct format.");
+
+                       if (AllowTrailingSign && !foundSign) {
+                               // Sign + Currency
+                               Int32.FindSign (ref pos, s, nfi, ref foundSign, ref negative);
+                               if (foundSign) {
+                                       if (AllowTrailingWhite)
+                                               pos = Int32.JumpOverWhite (pos, s, true);
+                                       if (AllowCurrencySymbol)
+                                               Int32. FindCurrency (ref pos, s, nfi,
+                                                                    ref foundCurrency);
+                               }
+                       }
+                       
+                       if (AllowCurrencySymbol && !foundCurrency) {
+                               // Currency + sign
+                               Int32.FindCurrency (ref pos, s, nfi, ref foundCurrency);
+                               if (foundCurrency) {
+                                       if (AllowTrailingWhite)
+                                               pos = Int32.JumpOverWhite (pos, s, true);
+                                       if (!foundSign && AllowTrailingSign)
+                                               Int32.FindSign (ref pos, s, nfi, ref foundSign,
+                                                               ref negative);
+                               }
+                       }
+                       
+                       if (AllowTrailingWhite && pos < s.Length)
+                               pos = Int32.JumpOverWhite (pos, s, false);
+
+                       if (foundOpenParentheses) {
+                               if (pos >= s.Length || s [pos++] != ')')
+                                       throw new FormatException ("Input string was not in the correct " + 
+                                                                  "format.");
+                               if (AllowTrailingWhite && pos < s.Length)
+                                       pos = Int32.JumpOverWhite (pos, s, false);
+                       }
+
+                       if (pos < s.Length && s [pos] != '\u0000')
+                               throw new FormatException ("Input string was not in the correct format.");
+
+                       if (negative)
+                               throw new OverflowException ( "Value too large or too small.");
+
+                       return number;
                }
 
                public override string ToString ()
                {
-                       return ToString ("G", null);
+                       return ToString (null, null);
                }
 
                public string ToString (IFormatProvider fp)
                {
-                       return ToString ("G", fp);
+                       return ToString (null, fp);
                }
 
                public string ToString (string format)
@@ -135,21 +332,12 @@ namespace System {
 
                public string ToString (string format, IFormatProvider fp)
                {
-                       string fmt;
-                       NumberFormatInfo nfi;
+                       NumberFormatInfo nfi = NumberFormatInfo.GetInstance( fp );
                        
-                       fmt = (format == null) ? "G" : format;
+                       if ( format == null )
+                               format = "G";
                        
-                       if (fp == null)
-                               nfi = NumberFormatInfo.CurrentInfo;
-                       else {
-                               nfi = (NumberFormatInfo) fp.GetFormat (Type);
-                               
-                               if (nfi == null)
-                                       nfi = NumberFormatInfo.CurrentInfo;
-                       }
-
-                       return IntegerFormatter.NumberToString (fmt, nfi, value);
+                       return IntegerFormatter.NumberToString(format, nfi, value);
                }
 
                // =========== IConvertible Methods =========== //
@@ -157,6 +345,85 @@ namespace System {
                public TypeCode GetTypeCode ()
                {
                        return TypeCode.UInt32;
-               }                               
+               }
+
+               bool IConvertible.ToBoolean (IFormatProvider provider)
+               {
+                       return System.Convert.ToBoolean (value);
+               }
+
+               byte IConvertible.ToByte (IFormatProvider provider)
+               {
+                       return System.Convert.ToByte (value);
+               }
+
+               char IConvertible.ToChar (IFormatProvider provider)
+               {
+                       return System.Convert.ToChar (value);
+               }
+
+               DateTime IConvertible.ToDateTime (IFormatProvider provider)
+               {
+                       return System.Convert.ToDateTime (value);
+               }
+
+               decimal IConvertible.ToDecimal (IFormatProvider provider)
+               {
+                       return System.Convert.ToDecimal (value);
+               }
+
+               double IConvertible.ToDouble (IFormatProvider provider)
+               {
+                       return System.Convert.ToDouble (value);
+               }
+
+               short IConvertible.ToInt16 (IFormatProvider provider)
+               {
+                       return System.Convert.ToInt16 (value);
+               }
+
+               int IConvertible.ToInt32 (IFormatProvider provider)
+               {
+                       return System.Convert.ToInt32 (value);
+               }
+
+               long IConvertible.ToInt64 (IFormatProvider provider)
+               {
+                       return System.Convert.ToInt64 (value);
+               }
+
+               [CLSCompliant (false)]
+               sbyte IConvertible.ToSByte (IFormatProvider provider)
+               {
+                       return System.Convert.ToSByte (value);
+               }
+               
+               float IConvertible.ToSingle (IFormatProvider provider)
+               {
+                       return System.Convert.ToSingle (value);
+               }
+
+               object IConvertible.ToType (Type conversionType, IFormatProvider provider)
+               {
+                       return System.Convert.ToType (value, conversionType, provider);
+               }
+
+               [CLSCompliant (false)]
+               ushort IConvertible.ToUInt16 (IFormatProvider provider)
+               {
+                       return System.Convert.ToUInt16 (value);
+               }
+
+               [CLSCompliant (false)]
+               uint IConvertible.ToUInt32 (IFormatProvider provider)
+               {
+                       return System.Convert.ToUInt32 (value);
+               }
+
+               [CLSCompliant (false)]
+               ulong IConvertible.ToUInt64 (IFormatProvider provider)
+               {
+                       return System.Convert.ToUInt64 (value);
+               }
        }
 }