module java.lang.Character;

import java.lang.exceptions;
import java.lang.util;
import tango.text.Unicode;

class Character {
    public static bool isUpperCase( dchar c ){
        implMissing( __FILE__, __LINE__);
        return false;
    }
    public static dchar toUpperCase( dchar c ){
        dchar[] r = tango.text.Unicode.toUpper( [c] );
        return r[0];
    }
    public static dchar toLowerCase( dchar c ){
        dchar[] r = tango.text.Unicode.toLower( [c] );
        return r[0];
    }
    public static bool isWhitespace( dchar c ){
        return tango.text.Unicode.isWhitespace( c );
    }
    public static bool isDigit( dchar c ){
        return tango.text.Unicode.isDigit( c );
    }
    public static bool isLetterOrDigit( dchar c ){
        return isDigit(c) || isLetter(c);
    }
    public static bool isUnicodeIdentifierPart(char ch){
        implMissing( __FILE__, __LINE__);
        return false;
    }
    public static bool isUnicodeIdentifierStart(char ch){
        implMissing( __FILE__, __LINE__);
        return false;
    }
    public static bool isIdentifierIgnorable(char ch){
        implMissing( __FILE__, __LINE__);
        return false;
    }
    public static bool isJavaIdentifierPart(char ch){
        implMissing( __FILE__, __LINE__);
        return false;
    }

    this( char c ){
        // must be correct for container storage
        implMissing( __FILE__, __LINE__);
    }
}