This is how my conversions are done.
User enters characters through Normal Keyboard and JEditorPane # 1 recieves them.
Say user entered 'himalaya'.
Then this string recieved concurrently through KeyListeners (KeyTyped method ) is converted via my Devanagari-Converter Class for display in JEditorPane # 2.
The Devanagari Converter class has a Hash-table and each char of the string is parsed and search made for in the Hashtable.
Unicode equivalent of 'h' is pulled out. Then that of 'i' and so on, appended and sent to JEditorPane#2.
I have an alogorithm to deal with correct display of vowels as their position can determine their shape. SO I have if and elses to choose the right form of a vowel, but thats about it. I dont miss with their ranges or anything
The following is the code if you are interested.
/* Purpose: Converts Scharfe Encoding to Devanagari
*/
package transliteration;
import sandhi.*;
import java.util.*;
import java.io.*;
import java.text.*;
import java.lang.Integer.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.sql.*;
import sun.jdbc.odbc.*;
import java.nio.charset.Charset;
public class devanagari
{
private String transformed;
private Hashtable<String,String> unicode;
private Hashtable<String,String> matra;
public devanagari()
{
//System.out.println("**** Entered Devanagari:::");
transformed = "";
unicode = new Hashtable<String,String>();
matra = new Hashtable<String,String>();
my_hashtable();
//System.out.println("**** Leaving Devanagari:::");
}
public void my_hashtable( )
//*******************BEGINNING OF FUNCTION********************//public void my_hashtable (String s1)
{
matra.put("halant", "\u094d"); //halanta Sign
matra.put("A", "\u093E");
matra.put("i", "\u093F");
matra.put("I", "\u0940");
matra.put("u", "\u0941");
matra.put("U", "\u0942");
matra.put("f", "\u0943");
matra.put("F", "\u0944");
matra.put("x", "\u0962");
matra.put("X", "\u0963");
matra.put("e", "\u0947");
matra.put("E", "\u0948");
matra.put("o", "\u094b");
matra.put("O", "\u094c");
unicode.put("a", "\u0905");
unicode.put("A", "\u0906");
unicode.put("i", "\u0907");
unicode.put("I", "\u0908");
unicode.put("u", "\u0909");
unicode.put("U", "\u090a");
unicode.put("f", "\u090b");
unicode.put("F", "\u0960");
unicode.put("x", "\u090c");
unicode.put("X", "\u0961");
unicode.put("e", "\u090f");
unicode.put("E", "\u0910");
unicode.put("o", "\u0913");
unicode.put("O", "\u0914");
unicode.put("k", "\u0915");
unicode.put("K", "\u0916");
unicode.put("g", "\u0917");
unicode.put("G", "\u0918");
unicode.put("N", "\u0919");
unicode.put("c", "\u091a");
unicode.put("C", "\u091b");
unicode.put("j", "\u091c");
unicode.put("J", "\u091d");
unicode.put("Y", "\u091e");
unicode.put("w", "\u091f"); // Ta as in Tom
unicode.put("W", "\u0920");
unicode.put("q", "\u0921"); // Da as in David
unicode.put("Q", "\u0922");
unicode.put("R", "\u0923");
unicode.put("t", "\u0924"); // ta as in tamasha
unicode.put("T", "\u0925"); // tha as in thanks
unicode.put("d", "\u0926"); // da as in darvaaza
unicode.put("D", "\u0927"); // dha as in dhanusha
unicode.put("n", "\u0928");
unicode.put("p", "\u092a");
unicode.put("P", "\u092b");
unicode.put("b", "\u092c");
unicode.put("B", "\u092d");
unicode.put("m", "\u092e");
unicode.put("y", "\u092f");
unicode.put("r", "\u0930");
unicode.put("l", "\u0932");
unicode.put("L", "\u0933"); // the Marathi and Vedic 'L'
unicode.put("v", "\u0935");
unicode.put("S", "\u0936");
unicode.put("z", "\u0937");
unicode.put("s", "\u0938");
unicode.put("h", "\u0939");
unicode.put("M", "\u0902"); // anusvara
unicode.put("H", "\u0903"); // visarga
unicode.put("~", "\u0901"); // anunAsika - cchandra bindu, using ~ to represent it\
unicode.put("'", "\u093d"); // avagraha using "'"
unicode.put("3", "\u0969"); // 3 equals to pluta
unicode.put("8", "\u014F");//8 equals to upadhamaniya
// unicode.put("8", "\u0306\u032F");//8 equals to upadhamaniya
}
//*******************END OF FUNCTION********************//
//*******************BEGINNING OF FUNCTION********************//
public String transform(String s1)
{
transformed = "";
//System.out.println(" in devanagari" );
Vowel vowel = new Vowel();
int str_len = s1.length();
Object shabda[];
shabda = new String[str_len*2];
int counter = 0;
for (int i = 0; i < str_len ; i++ )
{
char c = s1.charAt(i);
Character character = new Character(c);
String varna = character.toString();
if (vowel.is_consonant(varna) )
{
shabda[counter++] = unicode.get(varna);
//System.out.println(" shabda [" + (counter - 1) + "] == " + shabda[counter-1]);
shabda[counter++] = "\u094d";//unicode.get("halant");
//System.out.println(" shabda [" + (counter - 1) + "] == " + shabda[counter-1]);
}
else if (vowel.is_Vowel(varna))
{
//System.out.println(" point of error: counter == " + counter);
if ( counter == 0 )
{ shabda[counter++] = unicode.get(varna); }
//System.out.println(" shabda [" + (counter - 1) + "] == " + shabda[counter-1]);
//if( ! shabda[counter - 1].equals(null)){
else if( (shabda[counter - 1].toString()).equals("\u094d") )
{
if( varna.equals("a") )
{ shabda[--counter] = ""; }
else
{
shabda[--counter] = matra.get(varna);
counter++; // or shabda[(--counter)++]
}
}
else
{ shabda[counter++] = unicode.get(varna); }
} // end of else if is-Vowel
else if (unicode.containsKey(varna))
{
shabda[counter++] = unicode.get(varna);
}
else { shabda[counter++] = varna; }
} // end of for
for ( int j = 0; j < counter; j++ )
{
transformed += shabda[j];
}
return transformed; // return transformed;
}
}
Unsolved 
