-// -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
//
// System.Char.cs
//
// (C) Ximian, Inc. http://www.ximian.com
//
+// Note about the ToString()'s. ECMA says there's only a ToString() method,
+// BUT it is just a wrapper for ToString(null). However there is no other ToString
+// in the docs. Turning to the NET framework sdk reveals that there is a
+// ToString(formatprovider) method, as well as a 'static ToString (char c)' method,
+// which appears to just be a Convert.ToString(char c) type method. ECMA also
+// doesn't list this class as implementing IFormattable.
+
using System.Globalization;
+using System.Runtime.CompilerServices;
namespace System {
- public struct Char : IComparable, IFormattable {
- public const char MinValue = (char) 0;
+ [Serializable]
+ public struct Char : IComparable, IConvertible { //, IFormattable {
public const char MaxValue = (char) 0xffff;
+ public const char MinValue = (char) 0;
// VES needs to know about value. public is workaround
// so source will compile
- public byte value;
-
+ public char value;
+
public int CompareTo (object v)
{
- if (!(v is System.Byte))
- throw new ArgumentException ("Value is not a System.Byte");
+ if (v == null)
+ return 1;
+
+ if (!(v is System.Char))
+ throw new ArgumentException (Locale.GetText ("Value is not a System.Char"));
+
+ char xv = (char) v;
+ if (value == xv)
+ return 0;
- return value - ((byte) v);
+ if (value > xv)
+ return 1;
+ else
+ return -1;
}
public override bool Equals (object o)
{
- if (!(o is System.Byte))
+ if (!(o is System.Char))
return false;
- return ((byte) o) == value;
+ return ((Char) o) == value;
}
public override int GetHashCode ()
return value;
}
- public static double GetNumericValue (char c)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern double GetNumericValue (char c);
+
+ public static double GetNumericValue (string str, int index)
+ {
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+
+ return GetNumericValue (str[index]);
+ }
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern UnicodeCategory GetUnicodeCategory (char c);
+
+ public static UnicodeCategory GetUnicodeCategory (string str, int index) {
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText ("The value of index is less "+
+ "than zero, or greater than or equal to the length of str"));
+
+ return GetUnicodeCategory (str[index]);
+ }
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsControl (char c);
+
+ public static bool IsControl (string str, int index)
{
- if ((c >= 48) && (c <= 57))
- return (double) (c - '0');
- return -1;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("Str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsControl (str[index]);
}
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsDigit (char c);
- public static double GetNumericValue (string s, int index)
+ public static bool IsDigit (string str, int index)
{
- /* FIXME: implement me */
- return -1;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("Str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsDigit (str[index]);
}
- public static bool IsControl (char c)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsLetter (char c);
+
+ public static bool IsLetter (string str, int index)
{
- return ((c > 1) && (c < 32));
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsLetter (str[index]);
}
- public static bool IsDigit (char c)
+ public static bool IsLetterOrDigit (char c)
{
- return ((c >= '0') && (c <= '9'));
+ if (IsLetter (c) == false && IsDigit (c) == false)
+ return false;
+ else
+ return true;
}
- public static bool IsLetter (char c)
+ public static bool IsLetterOrDigit (string str, int index)
{
- /*
- * FIXME: This is broken, it should support
- * the various categories in System.Globalization.UnicodeCategory
- */
- return ((c >= 65) && (c <= 126));
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsLetterOrDigit (str[index]);
}
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsLower (char c);
- public TypeCode GetTypeCode ()
+ public static bool IsLower (string str, int index)
{
- return TypeCode.Byte;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsLower (str[index]);
}
- public static char Parse (string s)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsNumber (char c);
+
+ public static bool IsNumber (string str, int index)
{
- // TODO: Implement me
- return (char) 0;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsNumber (str[index]);
}
- public static char Parse (string s, IFormatProvider fp)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsPunctuation (char c);
+
+ public static bool IsPunctuation (string str, int index)
{
- // TODO: Implement me
- return (char) 0;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsPunctuation (str[index]);
}
- public static char Parse (string s, NumberStyles style, IFormatProvider fp)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsSeparator (char c);
+
+ public static bool IsSeparator (string str, int index)
{
- // TODO: Implement me
- return (char) 0;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsSeparator (str[index]);
}
- public static char ToLower (char c)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsSurrogate (char c);
+
+ public static bool IsSurrogate (string str, int index)
{
- // FIXME: make me unicode aware
- return (c >= 'A' && c <= 'Z') ? (char) (c + 33) : c;
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsSurrogate (str[index]);
}
- public static char ToUpper (char c)
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsSymbol (char c);
+
+ public static bool IsSymbol (string str, int index)
{
- // FIXME: make me unicode aware
- return (char) ((c >= 'a' && c <= 'z') ? c - 33 : c);
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsSymbol (str[index]);
}
- public override string ToString ()
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsUpper (char c);
+
+ public static bool IsUpper (string str, int index)
+ {
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsUpper (str[index]);
+ }
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern bool IsWhiteSpace (char c);
+
+ public static bool IsWhiteSpace (string str, int index)
+ {
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
+
+ if (index < 0 || index >= str.Length)
+ throw new ArgumentOutOfRangeException (Locale.GetText (
+ "The value of index is less than zero, or greater than or equal to the length of str"));
+
+ return IsWhiteSpace (str[index]);
+ }
+
+ public static char Parse (string str)
{
- // TODO: Implement me
+ if (str == null)
+ throw new ArgumentNullException (Locale.GetText ("str is a null reference"));
- return "";
+ if (str.Length != 1)
+ throw new FormatException ("string contains more than one character.");
+
+ return str [0];
+ }
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern char ToLower (char c);
+
+ [MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
+ public static extern char ToUpper (char c);
+
+ public override string ToString ()
+ {
+ // LAMESPEC: ECMA draft lists this as returning ToString (null),
+ // However it doesn't list another ToString() method.
+ return new String (value, 1);
}
public string ToString (IFormatProvider fp)
{
- // TODO: Implement me.
- return "";
+ // LAMESPEC: ECMA draft doesn't say Char implements IFormattable
+ return new String (value, 1);
}
- public string ToString (string format)
+ // =========== IConvertible Methods =========== //
+
+ public TypeCode GetTypeCode ()
+ {
+ return TypeCode.Char;
+ }
+
+ object IConvertible.ToType (Type conversionType, IFormatProvider provider)
{
- // TODO: Implement me.
- return "";
+ return System.Convert.ToType(value, conversionType, provider);
+ }
+
+ bool IConvertible.ToBoolean (IFormatProvider provider)
+ {
+ throw new InvalidCastException();
+ }
+
+ byte IConvertible.ToByte (IFormatProvider provider)
+ {
+ return System.Convert.ToByte(value);
+ }
+
+ char IConvertible.ToChar (IFormatProvider provider)
+ {
+ return value;
+ }
+
+ [CLSCompliant(false)]
+ DateTime IConvertible.ToDateTime (IFormatProvider provider)
+ {
+ throw new InvalidCastException();
+ }
+
+ decimal IConvertible.ToDecimal (IFormatProvider provider)
+ {
+ throw new InvalidCastException();
+ }
+
+ double IConvertible.ToDouble (IFormatProvider provider)
+ {
+ throw new InvalidCastException();
+ }
+
+ 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)
+ {
+ throw new InvalidCastException();
+ }
+
+ string IConvertible.ToString (IFormatProvider provider)
+ {
+ return ToString(provider);
}
- public string ToString (string format, IFormatProvider fp)
+ [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)
{
- // TODO: Implement me.
- return "";
+ return System.Convert.ToUInt64(value);
}
}
}