Помогите доработать Транслитератор

• Проблема в преобразовании символа 'CH' в кириллицу Ч, нужно что бы он сначала проверял стоит ли после символа С символ H, если стоит то преобразовать в русскую Ч.

Нужно доработать метод lat2cyr.

import java.util.HashMap;

import java.util.Map;

public class Transliterator {

private static final Map<Character, String> charMap = new HashMap<Character, String>();
static {
    charMap.put('А', "A");
    charMap.put('Б', "B");
    charMap.put('В', "V");
    charMap.put('Г', "G");
    charMap.put('Д', "D");
    charMap.put('Е', "E");
    charMap.put('Ё', "E");
    charMap.put('Ж', "J");
    charMap.put('З', "Z");
    charMap.put('И', "I");
    /*charMap.put('Й', "I");*/
    charMap.put('Й', "Y");
    charMap.put('К', "K");
    charMap.put('Л', "L");
    charMap.put('М', "M");
    charMap.put('Н', "N");
    charMap.put('О', "O");
    charMap.put('П', "P");
    charMap.put('Р', "R");
    charMap.put('С', "S");
    charMap.put('Т', "T");
    charMap.put('У', "U");
    charMap.put('Ф', "F");
    charMap.put('Х', "X");
    charMap.put('Ч', "CH");
    charMap.put('Ц', "C");
    charMap.put('Ш', "SH");
    charMap.put('Щ', "SH");
    charMap.put('Ъ', "'");
    charMap.put('Ы', "I");
    charMap.put('Ь', "'");
    charMap.put('Э', "E");
    charMap.put('Ю', "YU");
    charMap.put('Я', "YA");
    charMap.put('а', "a");
    charMap.put('б', "b");
    charMap.put('в', "v");
    charMap.put('г', "g");
    charMap.put('д', "d");
    charMap.put('е', "e");
    charMap.put('ё', "e");
    charMap.put('ж', "j");
    charMap.put('з', "z");
    charMap.put('и', "i");
    /*charMap.put('й', "y");*/
    charMap.put('й', "y");
    charMap.put('к', "k");
    charMap.put('л', "l");
    charMap.put('м', "m");
    charMap.put('н', "n");
    charMap.put('о', "o");
    charMap.put('п', "p");
    charMap.put('р', "r");
    charMap.put('с', "s");
    charMap.put('т', "t");
    charMap.put('у', "u");
    charMap.put('ф', "f");
    charMap.put('х', "x");
    charMap.put('ц', "c");
    charMap.put('ч', "ch");
    charMap.put('ш', "sh");
    charMap.put('щ', "sh");
    charMap.put('ъ', "'");
    charMap.put('ы', "i");
    charMap.put('ь', "'");
    charMap.put('э', "e");
    charMap.put('ю', "yu");
    charMap.put('я', "ya");
    charMap.put('%', "KH");
    charMap.put('^', "ZH");
}
private static final Map<Character, String> charMapEn = new HashMap<Character, String>();
static {
    charMapEn.put('A', "А");
    charMapEn.put('B', "Б");        
    charMapEn.put('C', "Ц");
    charMapEn.put('D', "Д");
    charMapEn.put('E', "Е");
    charMapEn.put('F', "Ф");
    charMapEn.put('G', "Г");
    charMapEn.put('H', "Х");
    charMapEn.put('I', "И");
    charMapEn.put('J', "Ж");
    charMapEn.put('K', "К");
    charMapEn.put('L', "Л");
    charMapEn.put('M', "М");
    charMapEn.put('N', "Н");
    charMapEn.put('O', "О");
    charMapEn.put('P', "П");
    charMapEn.put('Q', "К");
    charMapEn.put('R', "Р");
    charMapEn.put('S', "С");
    charMapEn.put('T', "Т");
    charMapEn.put('U', "У");
    charMapEn.put('V', "В");
    //charMapEn.put('W', "В");
    charMapEn.put('X', "Х");
    charMapEn.put('Y', "Й");
    charMapEn.put('Z', "З");
    charMapEn.put('a', "а");
    charMapEn.put('b', "б");
    charMapEn.put('c', "ц");
    charMapEn.put('d', "д");
    charMapEn.put('e', "е");
    charMapEn.put('f', "ф");
    charMapEn.put('g', "г");
    //charMapEn.put('h', "х");
    charMapEn.put('i', "и");
    charMapEn.put('j', "ж");
    charMapEn.put('k', "к");
    charMapEn.put('l', "л");
    charMapEn.put('m', "м");
    charMapEn.put('n', "н");
    charMapEn.put('o', "о");
    charMapEn.put('p', "п");
    charMapEn.put('q', "к");
    charMapEn.put('r', "р");
    charMapEn.put('s', "с");
    charMapEn.put('t', "т");
    charMapEn.put('u', "у");
    charMapEn.put('v', "в");
    //charMapEn.put('w', "в");
    charMapEn.put('x', "х");
    charMapEn.put('y', "й");
    charMapEn.put('z', "з");
    charMapEn.put('\'', "Ь");
    charMapEn.put('%',"Ш" );
    charMapEn.put('5', "ш");
    charMapEn.put('^', "Ч");
    charMapEn.put('6', "ч");
    charMapEn.put('?', "Щ");
    charMapEn.put('7', "щ");
    charMapEn.put('*', "Й");
}
private static final Map<Character,String> vowels = new HashMap<Character,String>();
static{
    vowels.put('A', "Я");
    vowels.put('E', "Е");
    vowels.put('U', "Ю");
    vowels.put('O', "Е");
    vowels.put('a', "я");
    vowels.put('e', "е");
    vowels.put('u', "ю");
    vowels.put('o', "Е");
}
private static String cyr2lat(String string) {
    StringBuilder transliteratedString = new StringBuilder();
    for (int i = 0; i < string.length(); i++) {
        Character ch = string.charAt(i);
        String charFromMap = charMap.get(ch);
        if (charFromMap == null) {
            transliteratedString.append(ch);
        } else {
            transliteratedString.append(charFromMap);
        }
    }
    return transliteratedString.toString();
}

private static Boolean isCyrillic(String text) {
    for (int i = 0; i < text.length(); i++) {
        if (Character.UnicodeBlock.of(text.charAt(i)).equals(
                Character.UnicodeBlock.CYRILLIC)) {
            // contains Cyrillic
            return true;
        }
    }
    return false;
}
static boolean flag = false;
public static String lat2cyr(String s){
    s = s.replace("null", "").trim();
    StringBuilder sb = new StringBuilder(s.length());
    for (int i = 0; i < s.length(); i++){   // Идем по строке слева направо. В принципе, подходит для обработки потока
        char ch = s.charAt(i);
        String charFromMap = charMapEn.get(ch);
        if (charFromMap != null){
            sb.append(charFromMap);
            if (flag){
                if (vowels.get(ch) != null){
                    if (sb.length()!=0)
                        sb.deleteCharAt(sb.length()-1);
                    if (sb.length()!=0)
                        sb.deleteCharAt(sb.length()-1);
                    sb.append(vowels.get(ch));
                    flag = false;
                }
                else
                    flag = false;
            }
            if (ch == 'Y' || ch == 'y')
                flag = true;
        }
        else{
            flag = false;
            sb.append(ch);
        }
    }
    return sb.toString();
}
public static String[] getTransliteratedNames(String name){
    String[] names = new String[7];
    if (name!=null && !name.isEmpty()){
        names[0] = name.replace("null", "").toUpperCase();
        if (isCyrillic(name)){
            names[1] = cyr2lat(names[0]).toUpperCase();
            names[2] = cyr2lat(names[0]).replace("X", "KH").replace("J", "ZH");
            names[3] = cyr2lat(names[0]).replace("X", "H");
        }
        else{
            names[1] = lat2cyr(replaceComplex(names[0].toUpperCase()));
            names[2] = lat2cyr(replaceComplex(names[0].toUpperCase())).replace("Е", "Э");
            names[3] = "";
        }
        }
    return names;
}
private static String replaceComplex(String src){
    src = src.replace("SH", "%");
    src = src.replace("SH'", "?");
    src = src.replace("CH", "^");
    src = src.replace("KH", "X");
    src = src.replace("ZH", "J");
    src = src.replace("Y'", "*");
    return src;
}

}