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// java.lang.Character
// An implementation of the Java Language Specification section 20.5
// Written by Charles Briscoe-Smith; refer to the file LEGAL for details.
package java.lang;
public final class Character {
public static final char MIN_VALUE = (char) 0x0;
public static final char MAX_VALUE = (char) 0xffff;
public static final int MIN_RADIX = 2;
public static final int MAX_RADIX = 36;
private char myvalue;
public Character(char value)
{
myvalue=value;
}
public String toString()
{
char[] buf=new char[1];
buf[0]=myvalue;
return new String(buf);
}
public boolean equals(Object obj)
{
try {
return ((Character) obj).myvalue==myvalue;
} catch (NullPointerException e) {
return false;
} catch (ClassCastException e) {
return false;
}
}
public int hashCode()
{
return (int) myvalue;
}
public char charValue()
{
return myvalue;
}
public static boolean isLowerCase(char ch)
{
return (ch>=0x61 && ch<=0x7a)
|| (ch>=0xdf && ch<=0xf6)
|| (ch>=0xf8 && ch<=0xff);
}
public static boolean isUpperCase(char ch)
{
return (ch>=0x41 && ch<=0x5a)
|| (ch>=0xc0 && ch<=0xd6)
|| (ch>=0xd8 && ch<=0xde);
}
public static boolean isDigit(char ch)
{
return ch>=0x30 && ch<=0x39;
}
public static boolean isSpace(char ch)
{
return ch==(char)0x9 || ch==(char) 0xa || ch==(char) 0xc
|| ch==(char) 0xd || ch==(char) 0x20;
}
public static char toLowerCase(char ch)
{
if (ch>=0x41 && ch<=0x5a) return ch+0x61-0x41;
if (ch>=0xc0 && ch<=0xd6) return ch+0xe0-0xc0;
if (ch>=0xd8 && ch<=0xde) return ch+0xf8-0xd8;
return ch;
}
public static char toUpperCase(char ch)
{
if (ch>=0x61 && ch<=0x7a) return ch+0x41-0x61;
if (ch>=0xe0 && ch<=0xf6) return ch+0xc0-0xe0;
if (ch>=0xf8 && ch<=0xfe) return ch+0xd8-0xf8;
if (ch==0xff) return 0x178;
return ch;
}
public static int digit(char ch, int radix)
{
if (radix < MIN_RADIX || radix > MAX_RADIX) {
return -1;
}
if (ch>=0x30 && ch<=0x39) {
ch-=0x30;
} else if (ch>=0x41 && ch<=0x5a) {
ch+=10-0x41;
} else if (ch>=0x61 && ch<=0x7a) {
ch+=10-0x61;
} else {
return -1;
}
if (ch<radix) {
return ch;
} else {
return -1;
}
}
public static char forDigit(int digit, int radix)
{
if (radix < MIN_RADIX || radix > MAX_RADIX
|| digit < 0 || digit >= radix)
{
return (char) 0;
}
if (digit < 10)
return '0' + digit;
else
return 'a' + digit - 10;
}
}
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